EP3747076A2 - Mixture of potassium and lithium salts, and use thereof in a battery - Google Patents
Mixture of potassium and lithium salts, and use thereof in a batteryInfo
- Publication number
- EP3747076A2 EP3747076A2 EP19709545.8A EP19709545A EP3747076A2 EP 3747076 A2 EP3747076 A2 EP 3747076A2 EP 19709545 A EP19709545 A EP 19709545A EP 3747076 A2 EP3747076 A2 EP 3747076A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- salt
- formula
- mixture
- ppm
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 181
- 229910003002 lithium salt Inorganic materials 0.000 title claims abstract description 48
- 159000000002 lithium salts Chemical class 0.000 title claims abstract description 47
- 229910052700 potassium Inorganic materials 0.000 title claims description 14
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 title description 2
- 239000011591 potassium Substances 0.000 title description 2
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims abstract description 45
- 150000003839 salts Chemical class 0.000 claims description 110
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 41
- 229910052799 carbon Inorganic materials 0.000 claims description 39
- 229910013870 LiPF 6 Inorganic materials 0.000 claims description 31
- 239000003792 electrolyte Substances 0.000 claims description 30
- 229910010941 LiFSI Inorganic materials 0.000 claims description 28
- VDVLPSWVDYJFRW-UHFFFAOYSA-N lithium;bis(fluorosulfonyl)azanide Chemical compound [Li+].FS(=O)(=O)[N-]S(F)(=O)=O VDVLPSWVDYJFRW-UHFFFAOYSA-N 0.000 claims description 27
- MHEBVKPOSBNNAC-UHFFFAOYSA-N potassium;bis(fluorosulfonyl)azanide Chemical compound [K+].FS(=O)(=O)[N-]S(F)(=O)=O MHEBVKPOSBNNAC-UHFFFAOYSA-N 0.000 claims description 22
- 239000002904 solvent Substances 0.000 claims description 19
- 229910052744 lithium Inorganic materials 0.000 claims description 17
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 16
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 15
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 15
- 229910052770 Uranium Inorganic materials 0.000 claims description 12
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 claims description 11
- 229910001416 lithium ion Inorganic materials 0.000 claims description 11
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 10
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 10
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 8
- -1 alkyldisulfide Chemical compound 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002000 Electrolyte additive Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 7
- 229910013063 LiBF 4 Inorganic materials 0.000 claims description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 4
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 claims description 4
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 4
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims description 4
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 claims description 3
- WJQOZHYUIDYNHM-UHFFFAOYSA-N 2-tert-Butylphenol Chemical compound CC(C)(C)C1=CC=CC=C1O WJQOZHYUIDYNHM-UHFFFAOYSA-N 0.000 claims description 3
- 150000001298 alcohols Chemical class 0.000 claims description 3
- 150000001450 anions Chemical class 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 150000002170 ethers Chemical class 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- 150000002825 nitriles Chemical class 0.000 claims description 3
- FWZHZWOOUOCBME-UHFFFAOYSA-N 1,3,4,6-tetrafluoro-2,5-dimethoxy-5-methylcyclohexa-1,3-diene Chemical compound COC1(C)C(C(=C(C(=C1F)F)OC)F)F FWZHZWOOUOCBME-UHFFFAOYSA-N 0.000 claims description 2
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 claims description 2
- MMZYCBHLNZVROM-UHFFFAOYSA-N 1-fluoro-2-methylbenzene Chemical compound CC1=CC=CC=C1F MMZYCBHLNZVROM-UHFFFAOYSA-N 0.000 claims description 2
- XUGNJOCQALIQFG-UHFFFAOYSA-N 2-ethenylquinoline Chemical compound C1=CC=CC2=NC(C=C)=CC=C21 XUGNJOCQALIQFG-UHFFFAOYSA-N 0.000 claims description 2
- YXDXXGXWFJCXEB-UHFFFAOYSA-N 2-furonitrile Chemical compound N#CC1=CC=CO1 YXDXXGXWFJCXEB-UHFFFAOYSA-N 0.000 claims description 2
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical class C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 claims description 2
- DTYXUWCJYMNDQD-UHFFFAOYSA-N 3-ethenylpyridazine Chemical compound C=CC1=CC=CN=N1 DTYXUWCJYMNDQD-UHFFFAOYSA-N 0.000 claims description 2
- VWIIJDNADIEEDB-UHFFFAOYSA-N 3-methyl-1,3-oxazolidin-2-one Chemical compound CN1CCOC1=O VWIIJDNADIEEDB-UHFFFAOYSA-N 0.000 claims description 2
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 claims description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical class C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical class CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 235000010290 biphenyl Nutrition 0.000 claims description 2
- 150000004074 biphenyls Chemical class 0.000 claims description 2
- JZQAAQZDDMEFGZ-UHFFFAOYSA-N bis(ethenyl) hexanedioate Chemical class C=COC(=O)CCCCC(=O)OC=C JZQAAQZDDMEFGZ-UHFFFAOYSA-N 0.000 claims description 2
- CCRCUPLGCSFEDV-UHFFFAOYSA-N cinnamic acid methyl ester Chemical class COC(=O)C=CC1=CC=CC=C1 CCRCUPLGCSFEDV-UHFFFAOYSA-N 0.000 claims description 2
- DFJYZCUIKPGCSG-UHFFFAOYSA-N decanedinitrile Chemical compound N#CCCCCCCCCC#N DFJYZCUIKPGCSG-UHFFFAOYSA-N 0.000 claims description 2
- GUVUOGQBMYCBQP-UHFFFAOYSA-N dmpu Chemical compound CN1CCCN(C)C1=O GUVUOGQBMYCBQP-UHFFFAOYSA-N 0.000 claims description 2
- BGSFCOHRQUBESL-UHFFFAOYSA-N ethyl prop-2-enyl carbonate Chemical class CCOC(=O)OCC=C BGSFCOHRQUBESL-UHFFFAOYSA-N 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical class O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 125000005395 methacrylic acid group Chemical class 0.000 claims description 2
- CCRCUPLGCSFEDV-BQYQJAHWSA-N methyl trans-cinnamate Chemical class COC(=O)\C=C\C1=CC=CC=C1 CCRCUPLGCSFEDV-BQYQJAHWSA-N 0.000 claims description 2
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 claims description 2
- 150000002923 oximes Chemical class 0.000 claims description 2
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical compound C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 claims description 2
- 150000004756 silanes Chemical class 0.000 claims description 2
- 239000011877 solvent mixture Substances 0.000 claims description 2
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 claims description 2
- OBAJXDYVZBHCGT-UHFFFAOYSA-N tris(pentafluorophenyl)borane Chemical compound FC1=C(F)C(F)=C(F)C(F)=C1B(C=1C(=C(F)C(F)=C(F)C=1F)F)C1=C(F)C(F)=C(F)C(F)=C1F OBAJXDYVZBHCGT-UHFFFAOYSA-N 0.000 claims description 2
- 125000000391 vinyl group Chemical class [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Chemical class 0.000 claims description 2
- SKDGWNHUETZZCS-UHFFFAOYSA-N 2,3-ditert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(O)=C1C(C)(C)C SKDGWNHUETZZCS-UHFFFAOYSA-N 0.000 claims 1
- 229910021135 KPF6 Inorganic materials 0.000 claims 1
- 102000016941 Rho Guanine Nucleotide Exchange Factors Human genes 0.000 claims 1
- 108010053823 Rho Guanine Nucleotide Exchange Factors Proteins 0.000 claims 1
- 210000004027 cell Anatomy 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 238000002161 passivation Methods 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 7
- 239000011262 electrochemically active material Substances 0.000 description 7
- 239000011572 manganese Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- GKZFQPGIDVGTLZ-UHFFFAOYSA-N 4-(trifluoromethyl)-1,3-dioxolan-2-one Chemical compound FC(F)(F)C1COC(=O)O1 GKZFQPGIDVGTLZ-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 2
- 229910010686 LiFePCU Inorganic materials 0.000 description 2
- 229910013716 LiNi Inorganic materials 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 210000001787 dendrite Anatomy 0.000 description 2
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- RSNHXDVSISOZOB-UHFFFAOYSA-N lithium nickel Chemical compound [Li].[Ni] RSNHXDVSISOZOB-UHFFFAOYSA-N 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 159000000001 potassium salts Chemical class 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- OWPOSEUJTSUPSG-UHFFFAOYSA-N 2-methoxypentanedinitrile Chemical compound COC(C#N)CCC#N OWPOSEUJTSUPSG-UHFFFAOYSA-N 0.000 description 1
- SFPQDYSOPQHZAQ-UHFFFAOYSA-N 2-methoxypropanenitrile Chemical compound COC(C)C#N SFPQDYSOPQHZAQ-UHFFFAOYSA-N 0.000 description 1
- FPPLREPCQJZDAQ-UHFFFAOYSA-N 2-methylpentanedinitrile Chemical compound N#CC(C)CCC#N FPPLREPCQJZDAQ-UHFFFAOYSA-N 0.000 description 1
- MTPJEFOSTIKRSS-UHFFFAOYSA-N 3-(dimethylamino)propanenitrile Chemical compound CN(C)CCC#N MTPJEFOSTIKRSS-UHFFFAOYSA-N 0.000 description 1
- WTQMTUQXPWPJIT-UHFFFAOYSA-N 3-methylpentanedinitrile Chemical compound N#CCC(C)CC#N WTQMTUQXPWPJIT-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 102100031416 Gastric triacylglycerol lipase Human genes 0.000 description 1
- 101000941284 Homo sapiens Gastric triacylglycerol lipase Proteins 0.000 description 1
- 101000927796 Homo sapiens Rho guanine nucleotide exchange factor 7 Proteins 0.000 description 1
- 229910015645 LiMn Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- RFFFKMOABOFIDF-UHFFFAOYSA-N Pentanenitrile Chemical compound CCCCC#N RFFFKMOABOFIDF-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 102100033200 Rho guanine nucleotide exchange factor 7 Human genes 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- PFYQFCKUASLJLL-UHFFFAOYSA-N [Co].[Ni].[Li] Chemical compound [Co].[Ni].[Li] PFYQFCKUASLJLL-UHFFFAOYSA-N 0.000 description 1
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 description 1
- SOXUFMZTHZXOGC-UHFFFAOYSA-N [Li].[Mn].[Co].[Ni] Chemical compound [Li].[Mn].[Co].[Ni] SOXUFMZTHZXOGC-UHFFFAOYSA-N 0.000 description 1
- OHOIHSTWKIMQNC-UHFFFAOYSA-N [Li].[P]=O Chemical class [Li].[P]=O OHOIHSTWKIMQNC-UHFFFAOYSA-N 0.000 description 1
- ZYXUQEDFWHDILZ-UHFFFAOYSA-N [Ni].[Mn].[Li] Chemical class [Ni].[Mn].[Li] ZYXUQEDFWHDILZ-UHFFFAOYSA-N 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical class [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- QLDHWVVRQCGZLE-UHFFFAOYSA-N acetyl cyanide Chemical compound CC(=O)C#N QLDHWVVRQCGZLE-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- BTGRAWJCKBQKAO-UHFFFAOYSA-N adiponitrile Chemical compound N#CCCCCC#N BTGRAWJCKBQKAO-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002134 carbon nanofiber Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- CKFRRHLHAJZIIN-UHFFFAOYSA-N cobalt lithium Chemical compound [Li].[Co] CKFRRHLHAJZIIN-UHFFFAOYSA-N 0.000 description 1
- MZZUATUOLXMCEY-UHFFFAOYSA-N cobalt manganese Chemical compound [Mn].[Co] MZZUATUOLXMCEY-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 150000005676 cyclic carbonates Chemical class 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 229920005558 epichlorohydrin rubber Polymers 0.000 description 1
- 125000005678 ethenylene group Chemical group [H]C([*:1])=C([H])[*:2] 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- ZTOMUSMDRMJOTH-UHFFFAOYSA-N glutaronitrile Chemical compound N#CCCCC#N ZTOMUSMDRMJOTH-UHFFFAOYSA-N 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 229920006168 hydrated nitrile rubber Polymers 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- LRDFRRGEGBBSRN-UHFFFAOYSA-N isobutyronitrile Chemical compound CC(C)C#N LRDFRRGEGBBSRN-UHFFFAOYSA-N 0.000 description 1
- QHDRKFYEGYYIIK-UHFFFAOYSA-N isovaleronitrile Chemical compound CC(C)CC#N QHDRKFYEGYYIIK-UHFFFAOYSA-N 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- CUONGYYJJVDODC-UHFFFAOYSA-N malononitrile Chemical compound N#CCC#N CUONGYYJJVDODC-UHFFFAOYSA-N 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- CXHHBNMLPJOKQD-UHFFFAOYSA-M methyl carbonate Chemical compound COC([O-])=O CXHHBNMLPJOKQD-UHFFFAOYSA-M 0.000 description 1
- 150000005217 methyl ethers Chemical class 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical group CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- GWWNCLHJCFNTJA-UHFFFAOYSA-N nicandrenone-2 Natural products C12OC2C2(O)CC=CC(=O)C2(C)C(CCC23C)C1C3CCC2(O)C(C)C1OC(O)C2(C)OC2(C)C1 GWWNCLHJCFNTJA-UHFFFAOYSA-N 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- 150000005677 organic carbonates Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 125000006353 oxyethylene group Chemical group 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- JAMNHZBIQDNHMM-UHFFFAOYSA-N pivalonitrile Chemical compound CC(C)(C)C#N JAMNHZBIQDNHMM-UHFFFAOYSA-N 0.000 description 1
- 239000003495 polar organic solvent Substances 0.000 description 1
- 229920006112 polar polymer Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- FOWDZVNRQHPXDO-UHFFFAOYSA-N propyl hydrogen carbonate Chemical compound CCCOC(O)=O FOWDZVNRQHPXDO-UHFFFAOYSA-N 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003232 water-soluble binding agent Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/58—Liquid electrolytes
- H01G11/64—Liquid electrolytes characterised by additives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/58—Liquid electrolytes
- H01G11/60—Liquid electrolytes characterised by the solvent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/58—Liquid electrolytes
- H01G11/62—Liquid electrolytes characterised by the solute, e.g. salts, anions or cations therein
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0567—Liquid materials characterised by the additives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0568—Liquid materials characterised by the solutes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
- H01M2300/0037—Mixture of solvents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present application relates to a mixture of lithium and potassium salts, as well as its use in a battery.
- a battery (such as for example a lithium-ion battery or a Li-Suffre battery) comprises at least one negative electrode (anode), a positive electrode (cathode), a separator and an electrolyte.
- the electrolyte generally consists of a lithium salt dissolved in a solvent which is generally a mixture of organic carbonates, in order to have a good compromise between the viscosity and the dielectric constant.
- the passivation layers formed during the first discharge charging cycles are essential for the life of the battery.
- passivation layers there may be mentioned in particular the passivation layer on aluminum which is the current collector used at the cathode, or else the “Solid Electrolyte Interface” (SEI) which is the layer both inorganic and polymeric which is formed at the anode / electrolyte and cathode / electrolyte interface.
- SEI Solid Electrolyte Interface
- the formation of dendrites on a lithium metal anode also causes a decrease in battery life.
- the present application relates to a mixture comprising (preferably consisting essentially of, and preferably consisting of):
- Rf represents F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C4H4F5, C5F11, C6F13, C7F15, CeFi7, or C 9 F 19; and their mixtures;
- Rp is F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C4H4F5, C5F11, C6F13, C7F15, CeFi7, or C 9 F 19; and their mixtures.
- ppm or "part per million” means ppm by weight.
- the present invention relates to a mixture comprising (preferably consisting essentially of, and preferably consisting of):
- R 1 -SO 2 -NU-SO 2 -R 2 in which R 1 and R 2 represent, independently of one another, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , CeF 17, or C 9 F 19;
- Rp is F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C4H4F5, C5F11, C6F13, C7F15, CeF, or C 9 F 19; and their mixtures.
- the mixture comprises:
- the mixture comprises from 1 to 1000 ppm of at least one aforementioned potassium salt B, preferably from 1 to 50 ppm, preferably from 1 to 20 ppm, and even more preferably from 1 to 10 ppm. .
- the mixture comprises at least one lithium salt A as defined above, in a mass content greater than or equal to 99% by weight relative to the total weight of the mixture, preferably greater than or equal to 99 , 5%, preferentially greater than or equal to 99.9%, advantageously greater than or equal to 99.95%, still more preferably greater than or equal to 99.99%, still more advantageously greater than or equal to 99.995%, preferably higher or equal to 99.999%, for example greater than or equal to 99.9995% by weight relative to the total weight of the mixture.
- the mixture comprises at least one potassium salt B as defined above, in a mass content of less than or equal to 10,000 ppm, preferably less than or equal to 5,000 ppm, preferably less than or equal to 1 000 ppm, advantageously less than or equal to 500 ppm, even more preferably less than or equal to 100 ppm, even more advantageously less than or equal to 50 ppm, advantageously less than or equal to 10 ppm, for example less than or equal to 5 ppm in weight relative to the total weight of the mixture.
- the mixture comprises:
- the mixture comprises at least one lithium salt A and at least one potassium salt B, said salts having the same anion.
- the mixture preferably comprises at least one lithium salt A chosen from the group consisting of LiPF 6 , LiBF 4 , CH 3 COO, CH 3 SO 3 U, CF 3 SO 3 U, CF 3 COO, L 1. 2 B 12 F 12 , L 1BC 4 O 8 , and mixtures thereof, the lithium salt A being preferably L1PF 6 ; and at least one potassium salt B selected from the group consisting of KPF 6 , KBF 4 , CH 3 COOK, CH 3 SO 3 K, CF 3 SO 3 K, CF 3 COOK, K 2 B 12 F 12 , KBC 4 O 8, and mixtures thereof, the potassium salt B being preferably KPF 6 .
- the mixture preferably comprises at least one lithium salt A chosen from the group consisting of LiPF 6 , L 1 BF 4 , CH 3 COOH, CH 3 SO 3 U, CF 3 SO 3 U, CF 3 COO, U 2 B 12 F 12 , UBC 4 O 8 , and mixtures thereof, the lithium salt A being preferably LiPF 6 ; and at least one potassium salt B having the formula (III) R 3 -SO 2 -NK-SO 2 -R 4 in which R 3 and R 4 represent, independently of one another, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3, C 2 H 3 F 2 , C 2 F 5, C 3 F 7, C 3 H 2 F 5, C 3 H 4 F 3, C 4 F 9, C 4 H 2 F 7, C 4 H 4 F 5, C 5 F 11, C 6 F 13, C 7 F 15, CeF 7, or C 9 F 19 .
- R 3 and R 4 preferably representing, independently of one another, F or CF 3 , and preferably F
- the mixture preferably comprises at least one lithium salt A chosen from the group consisting of LiPF 6 , L 1 BF 4 , CH 3 COOH, CH 3 SO 3 U, CF 3 SO 3 U, CF 3 COO, U 2 B 12 F 12 , UBC 4 O 8 , and mixtures thereof, the lithium salt A being preferably LiPF 6 ; and at least one potassium salt B having the above-mentioned formula (IV) wherein Rp is F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15, C 8 F 17, OR C 9 F 19, preferably Rp CF3.
- LiPF 6 LiPF 6
- L 1 BF 4 CH 3 COOH
- the mixture preferably comprises at least one lithium salt A having the formula (I) R 1 -SO 2 -NK-SO 2 -R 2 in which R 1 and R 2 represent, independently of one of the other, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , CeF 7 , or C 9 F 19 , with R and R 2 is preferably, independently of each other, F or CF 3, and more preferably F; and at least one potassium salt B selected from the group consisting of KPF 6 , KBF 4 , CH 3 COOK, CH 3 SO 3 K, CF 3 SO 3 K, CF 3 COOK, K 2 B 12 F 12 , K
- the mixture preferably comprises at least one lithium salt A having the formula (I) R 1 -SO 2 -NK-SO 2 -R 2 in which R 1 and R 2 represent, independently of one of the other, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , CeF 7 , or C 9 F 19 , with R and R 2 is preferably, independently of each other, F or CF 3, and more preferably F; and at least one potassium salt B having the formula (III) R 3 -SO 2 -NK-SO 2 -R 4 in which R 3 and R 4 represent, independently of one another, F, CF 3 , CHF 2 , CH 2
- the mixture preferably comprises at least one lithium salt A having the formula (I) R 1 -SO 2 -NK-SO 2 -R 2 in which R 1 and R 2 represent, independently of one of the other, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , CeF 7 , or C 9 F 19 , with R and R 2 is preferably, independently of each other, F or CF 3, and more preferably F; and at least one potassium salt B having the above-mentioned formula (IV) wherein Rp is F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2
- the mixture preferably comprises at least one lithium salt A having the above-mentioned formula (II) in which Rf represents F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4, C 2 H 2 F 3 , C 2 H 3 F 2, C 2 F 5, C 3 F 7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CsF, or C 9 F 19, preferably Rf represents CF 3; and at least one potassium salt B selected from the group consisting of KPF 6 , KBF 4 , CH 3 COOK, CH 3 SO 3 K, CF 3 SO 3 K, CF 3 COOK, K 2 B 12 F 12 , KBC 4 O 8, and mixtures thereof, the potassium salt B being preferably KPF 6 .
- Rf represents F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4, C 2 H 2 F 3 , C 2 H 3 F 2, C
- the mixture preferably comprises at least one lithium salt A having the above-mentioned formula (II) in which Rf represents F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4, C 2 H 2 F 3 , C 2 H 3 F 2, C 2 F 5, C 3 F 7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F-I3, C7F15, CsF, or C 9 F 19, preferably Rf represents CF 3; and at least one potassium salt B having the formula (III) R 3 -SO 2 -NK-SO 2 -R 4 in which R 3 and R 4 represent, independently of one another, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9
- the mixture preferably comprises at least one lithium salt A having the above-mentioned formula (II) in which Rf represents F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4, C 2 H 2 F 3 , C 2 H 3 F 2, C 2 F 5, C 3 F 7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F-I3, C7F15, CsF, or C 9 F 19, preferably Rf represents CF 3; and at least one potassium salt B having the above-mentioned formula (IV) wherein Rp is F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3, C 2 H 3 F 2 , C 2 F 5, C 3 F 7, C 3 H 2 F 5, C 3 H 4 F 3, C 4 F 9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, Ce
- the mixture of the invention is chosen from one of the following mixtures:
- the mixture according to the invention can be prepared by mixing the various constituents either simultaneously or consecutively.
- the present application also relates to the use of a mixture as defined above, in a battery, for example a Li-ion battery, in particular at a temperature greater than or equal to 25 ° C., preferably of between 25 ° C. C and 80 ° C, and / or in particular at a tension of between 4 and 5, preferably at 4.2, 4.35, 4.4, 4.5 or 4.7 volts.
- a battery for example a Li-ion battery
- the use is in mobile devices, for example mobile phones, cameras, tablets or laptops, in electric vehicles, or in the storage of renewable energy.
- the present invention also relates to an electrolyte composition, in particular for a battery such as for example a Li-ion battery, comprising the mixture of lithium salts as defined above, at least one solvent, and optionally at least one electrolytic additive.
- the electrolyte composition does not comprise any other alkali or alkaline earth salt than those of the aforementioned mixture.
- the electrolyte composition does not comprise any other lithium salt or other potassium salt than those mentioned above for the mixture.
- the potassium and lithium salts mentioned above for the mixture represent 100% of all the salts present in the composition.
- electrospray composition In the context of the invention, “electrolyte composition”, “electrolyte” and “electrolyte composition” are used interchangeably.
- the electrolyte composition comprises from 1% to 99% by weight of the aforementioned mixture, preferably from 5% to 99%, and advantageously from 20% to 95%, relative to the total mass of the composition.
- the electrolyte composition comprises from 1% to 99% by weight of solvent, preferably from 5% to 99%, and advantageously from 20% to 95%, relative to the total mass of the composition.
- the molar concentration of the aforementioned mixture in the electrolyte composition is less than or equal to 7 mol / L, advantageously less than or equal to 4 mol / L, preferably less than or equal to 2 mol / L, preferentially less than or equal to 1, 5 mol / L, and in particular less than or equal to 1, 1 mol / L, for example less than or equal to 1 mol / L.
- the electrolyte composition may comprise a solvent or a mixture of solvents, such as for example two, three or four different solvents.
- the solvent of the electrolyte composition may be a liquid solvent, optionally gelled with a polymer, or a polar polymer solvent optionally plasticized with a liquid.
- the solvent is an organic solvent, preferably aprotic.
- the solvent is a polar organic solvent.
- the solvent is selected from the group consisting of ethers, carbonates, esters, ketones, partially hydrogenated hydrocarbons, nitriles, amides, alcohols, sulfoxides, sulfolane, nitromethane, 1,3-dimethyl-2-imidazolidinone, 1,3-dimethyl-3,4,5,6-tetrahydro-2 (1H) -pyrimidinone, 3-methyl-2-oxazolidinone, and their mixtures.
- ethers such as for example dimethoxyethane (DME), methyl ethers of oligoethylene glycols of 2 to 5 oxyethylene units, dioxolane, dioxane, dibutyl ether, tetrahydrofuran, and their mixtures.
- DME dimethoxyethane
- methyl ethers of oligoethylene glycols of 2 to 5 oxyethylene units dioxolane, dioxane, dibutyl ether, tetrahydrofuran, and their mixtures.
- esters mention may be made of phosphoric acid esters or sulphite esters. Mention may be made, for example, of methyl formate, methyl acetate, methyl propionate, ethyl acetate, butyl acetate, gamma butyrolactone or their mixtures.
- ketones there may be mentioned cyclohexanone.
- alcohols mention may be made, for example, of ethyl alcohol or isopropyl alcohol.
- nitriles there may be mentioned for example acetonitrile, pyruvonitrile, propionitrile, methoxypropionitrile, dimethylaminopropionitrile, butyronitrile, isobutyronitrile, valeronitrile, pivalonitrile, isovaleronitrile, glutaronitrile, methoxyglutaronitrile, 2-methylglutaronitrile, 3-methylglutaronitrile, adiponitrile, malononitrile, and mixtures thereof.
- cyclic carbonates such as, for example, ethylene carbonate (EC) (CAS: 96-49-1), propylene carbonate (PC) (CAS: 108-32-7) , butylene carbonate (BC) (CAS: 4437-85-8), dimethyl carbonate (DMC) (CAS: 616-38-6), diethyl carbonate (DEC) (CAS: 105-58-8 ), methyl carbonate ethyl (EMC) (CAS: 623-53-0), diphenyl carbonate (CAS 102-09-0), methyl carbonate phenyl (CAS: 13509-27-8), carbonate of dipropyl (DPC) (CAS: 623-96-1), methyl carbonate and propyl (MPC) (CAS: 1333-41-1), ethyl carbonate and propyl carbonate (EPC), carbonate of vinylene (VC) (CAS: 872-36-6), fluoroethylene carbonate (FEC) (CAS: cyclic carbonates such as, for example, ethylene
- the particularly preferred solvent is selected from carbonates and mixtures thereof.
- the electrolyte composition comprises one of the following mixtures: ethylene carbonate (EC) / propylene carbonate (PC) / dimethyl carbonate (DMC) in a 1/1/1 mass ratio;
- EC ethylene carbonate
- EMC methyl ethyl carbonate
- the electrolyte composition comprises at least one electrolytic additive.
- the electrolyte additive is selected from the group consisting of fluoroethylene carbonate (FEC), vinylene carbonate, 4-vinyl-1,3-dioxolan-2-one, pyridazine, vinyl pyridazine, quinoline, vinyl quinoline, butadiene, sebaconitrile, LiB (C 2 O 4 ) 2 , lithium nitrate, alkyldisulfide, fluorotoluene, 1,4-dimethoxytetrafluorotoluene, t-butylphenol t-butylphenol, tris (pentafluorophenyl) borane, oximes, aliphatic epoxides, halogenated biphenyls, methacrylic acids, ethyl allyl carbonate, vinyl acetate, divinyl adipate, acrylonitrile, 2-vinylpyridine, maleic anhydride, methyl cin
- the content of electrolyte additive in the electrolyte composition is between 0.01% and 10%, preferably between 0.1% and 4% by weight relative to the total mass of the electrolyte composition.
- the content of electrolyte additive in the electrolyte composition is less than or equal to 2% by weight relative to the total mass of the composition.
- the content of electrolyte additive in the electrolyte composition may for example be between 0.01% and 10%, preferably between 0.1% and 4% by weight, relative to the total weight of the solvent of said composition.
- the electrolyte composition may be prepared by any means known to those skilled in the art, for example by dissolving, preferably with stirring, salts in appropriate proportions of solvent (s) and / or additive (s). .
- the present application also relates to the use of an electrolyte composition as defined above in a battery, for example a Li-ion battery, in particular at a temperature greater than or equal to 25 ° C., preferably between 25 ° C and 80 ° C, and / or in particular at a voltage of between 4 and 5, preferably at 4.2, 4.35, 4.4, 4.5 or 4.7 volts.
- a battery for example a Li-ion battery
- a temperature greater than or equal to 25 ° C. preferably between 25 ° C and 80 ° C
- a voltage of between 4 and 5 preferably at 4.2, 4.35, 4.4, 4.5 or 4.7 volts.
- the use is made in mobile devices, for example the mobile phones, cameras, tablets or laptops, in electric vehicles, or in renewable energy storage.
- the present application also relates to an electrochemical cell comprising a negative electrode, a positive electrode, and a mixture of lithium salts as described above.
- the present application also relates to an electrochemical cell comprising a negative electrode, a positive electrode, and an electrolyte composition as defined above, interposed between the negative electrode and the positive electrode.
- the electrochemical cell may also comprise a separator, in which the electrolyte composition as defined above is impregnated.
- the present invention also relates to a battery comprising at least one electrochemical cell as described above.
- the battery comprises several electrochemical cells according to the invention, said cells can be assembled in series and / or in parallel.
- negative electrode means the electrode which acts as anode, when the battery delivers current (that is to say when it is in the process of discharge) and which makes cathode office when the battery is charging process.
- the negative electrode typically comprises an electrochemically active material, optionally an electronically conductive material, and optionally a binder.
- electrochemically active material means a material capable of reversibly inserting ions.
- electronically conductive material means a material capable of driving the electrons.
- the negative electrode of the electrochemical cell comprises, as an electrochemically active material, graphite, lithium, a lithium alloy, a lithium titanate of LUTisO ⁇ 1 or TiO 2 type , silicon or an alloy of lithium and silicon, a tin oxide, a lithium intermetallic compound, or a mixture thereof.
- the negative electrode may comprise lithium, which may then consist of a metal lithium film or an alloy comprising lithium.
- An example of a negative electrode may comprise a bright lithium film prepared by rolling between rolls of a lithium strip.
- positive electrode means the electrode which acts as cathode, when the battery delivers current (that is to say when it is in the process of discharge) and which serves anode when the battery is charging.
- the positive electrode typically comprises an electrochemically active material, optionally an electronically conductive material, and optionally a binder.
- the positive electrode of the electrochemical cell comprises an electrochemically active material selected from manganese dioxide (MnC> 2 ), iron oxide, copper oxide, nickel oxide, lithium-manganese composite oxides (for example Li x Mn 2 O 4 or Li x MnC 2), lithium-nickel compositions (for example Li x NiC 2) oxides, lithium cobalt compositions (for example Li x CoC 2) ), composite oxides of lithium-nickel-cobalt (e.g.
- LiNii- there CoyC> 2 lithium nickel composite oxides cobalt manganese
- LFP LiFePCU
- NMC LiMn x Co y Ni Z C> 2
- NMC LiFePCUF
- LiFeSCUF LiNi xi Co yi Al zi C> 2
- the material of the positive electrode may also include, in addition to the electrochemically active material, an electronically conductive material such as a carbon source, including, for example, carbon black, Ketjen ® carbon, Shawinigan carbon, graphite, graphene, carbon nanotubes, carbon fibers (such as gas-phase carbon fibers (VGCF), non-powdery carbon obtained by carbonization of an organic precursor, or a combination of two or more thereof
- an electronically conductive material such as a carbon source, including, for example, carbon black, Ketjen ® carbon, Shawinigan carbon, graphite, graphene, carbon nanotubes, carbon fibers (such as gas-phase carbon fibers (VGCF), non-powdery carbon obtained by carbonization of an organic precursor, or a combination of two or more thereof
- Other additives may also be present in the material of the positive electrode, such as lithium salts or inorganic particles of ceramic or glass type, or other compatible active materials (for example, sulfur).
- the material of the positive electrode may also comprise a bin
- Non-limiting examples of binders include linear, branched and / or crosslinked polymeric polyether binders (e.g., polymers based on polyethylene oxide (PEO), or poly (propylene oxide) (PPO) or a mixture of both (or an EO / PO co-polymer), and optionally comprising crosslinkable units), water-soluble binders (such as SBR (styrene-butadiene rubber), NBR (acrylonitrile-butadiene rubber) ), HNBR (hydrogenated NBR), CHR (epichlorohydrin rubber), ACM (acrylate rubber)), or fluoropolymer-type binders (such as PVDF (polyvinylidene fluoride), PTFE (polytetrafluoroethylene), and combinations thereof
- Some binders, such as those soluble in water, may also include an additive such as CMC (carboxymethylcellulose).
- the salt mixture according to the invention advantageously makes it possible to improve the service life of the battery.
- the present invention also relates to the use of at least one potassium salt B as defined above, in a mixture comprising at least 99% by weight of at least one lithium salt A as defined above ( preferably from 99% to 99.9999% by weight of at least one lithium salt A), to improve the life of a battery, in particular a Li-ion battery.
- between x and y or “between x and y” means an interval in which the terminals x and y are included.
- the range “between 1% and 98%” or “ranging from 1% to 98%” includes in particular the values 1 and 98%.
- the following table shows the oxidation currents at different voltages after two round trips in voltage for different amounts of potassium salt added. The two prior scans allow the formation of passivation layers such as SEI and passivation of aluminum.
- the oxidation current observed can reflect many phenomena: aluminum corrosion, degradation of the electrolyte and the formation of lithium dendrites. All these phenomena are responsible for the degradation of the life of Li-ion batteries. The lower the current, the longer the life of the battery is improved.
- the results show that the addition of KPF 6 to LiPF 6 advantageously makes it possible to reduce this oxidation current with respect to LiPF 6 alone, and thus to improve the service life of the batteries. Li-ion.
- CR2032 button cells were manufactured equipped with a NMC1 11 cathode, a 8 mm diameter metal lithium pellet as anode and a 18 mm diameter fiberglass separator soaked with 12 drops (0.6 mL).
- a 1 mol LiFSI lithium salt solution / additive with a KFSI potassium salt in a solvent mixture composed of ethylene carbonate and methyl ethyl carbonate (CAS 623-53-0) in a ratio 3/7 by volume.
- This battery then undergoes two training cycles at a C / 20 rate to form the different passivation layers.
- the battery is charged at C / 5 and discharged C / 2 at 25 ° C until the capacity reaches 80% of the initial capacity determined after the two training cycles.
- the following table shows the number of cycles reached at 80% capacity for different grades of KFSI (mixed with LiFSI):
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Power Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Primary Cells (AREA)
Abstract
Description
MELANGE DE SELS DE LITHIUM ET DE POTASSIUM, ET SON UTILISATION DANS MIXTURE OF LITHIUM AND POTASSIUM SALTS AND USE THEREOF
UNE BATTERIE A BATTERY
DOMAINE DE L’INVENTION FIELD OF THE INVENTION
La présente demande concerne un mélange de sels de lithium et de potassium, ainsi que son utilisation dans une batterie. The present application relates to a mixture of lithium and potassium salts, as well as its use in a battery.
ARRIERE-PLAN TECHNIQUE TECHNICAL BACKGROUND
Typiquement, une batterie (telle que par exemple une batterie lithium-ion ou une batterie Li-Souffre) comprend au moins une électrode négative (anode), une électrode positive (cathode), un séparateur et un électrolyte. L’électrolyte est généralement constitué d’un sel de lithium dissous dans un solvant qui est généralement un mélange de carbonates organiques, afin d’avoir un bon compromis entre la viscosité et la constante diélectrique. Typically, a battery (such as for example a lithium-ion battery or a Li-Suffre battery) comprises at least one negative electrode (anode), a positive electrode (cathode), a separator and an electrolyte. The electrolyte generally consists of a lithium salt dissolved in a solvent which is generally a mixture of organic carbonates, in order to have a good compromise between the viscosity and the dielectric constant.
Dans le domaine des batteries, les couches de passivation formées lors des premiers cycles de charge décharge sont primordiales pour la durée de vie de la batterie. Comme couches de passivation, on peut notamment citer la couche de passivation sur l’aluminium qui est le collecteur de courant utilisé à la cathode, ou encore la « Solid Electrolyte Interface » (SEI) qui est la couche à la fois inorganique et polymérique qui se forme à l’interface anode/électrolyte et cathode/électrolyte. Si les couches de passivation sont mal formées et/ou ne sont pas stables, leur reformation au cours des cycles de charge/décharge est responsable de la diminution de la durée de vie de la batterie : en effet, une partie du courant va servir à reformer ces couches de passivation plutôt que de participer à l’autonomie de la batterie. La formation de dendrites sur une anode en lithium métal engendre également une diminution de la durée de vie de la batterie. In the field of batteries, the passivation layers formed during the first discharge charging cycles are essential for the life of the battery. As passivation layers, there may be mentioned in particular the passivation layer on aluminum which is the current collector used at the cathode, or else the "Solid Electrolyte Interface" (SEI) which is the layer both inorganic and polymeric which is formed at the anode / electrolyte and cathode / electrolyte interface. If the passivation layers are poorly formed and / or are not stable, their reformation during the charging / discharging cycles is responsible for the decrease in the battery life: indeed, part of the current will be used to reform these layers of passivation rather than participate in battery life. The formation of dendrites on a lithium metal anode also causes a decrease in battery life.
Il existe donc un besoin de remédier aux inconvénients susmentionnés, et notamment d’améliorer la durée de vie des batteries, notamment des batteries de type Li-ion. There is therefore a need to overcome the aforementioned drawbacks, and in particular to improve the life of batteries, including Li-ion type batteries.
DESCRIPTION DE L’INVENTION DESCRIPTION OF THE INVENTION
Mélange Mixed
La présente demande concerne un mélange comprenant (de préférence consistant essentiellement en, et préférentiellement consistant en): The present application relates to a mixture comprising (preferably consisting essentially of, and preferably consisting of):
• i) de 99% à 99,9999% en poids d’au moins un sel de lithium A choisi dans le groupe constitué de LiPF6 ; LiBF4 ; CH3COOL1 ; CH3SO3L1 ; CF3SO3L1 ; CF3COOU ; U2B12F12 ; UBC4O8 ; d’un sel de formule (I) suivante : R1-SO2-NU- SO2-R2 (I) dans laquelle Ri et R2 représentent, indépendamment l’un de l’autre, F, CF3, CH F2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeFi7, ou C9F19 ; d’un sel de formule (II) suivante : I) from 99% to 99.9999% by weight of at least one lithium salt A selected from the group consisting of LiPF 6 ; LiBF 4 ; CH 3 COOL1; CH 3 SO 3 L 1; CF 3 SO 3 L 1; CF 3 COOU; U 2 B 12 F 12 ; UBC 4 O 8 ; of a salt of formula (I) below: R 1 -SO 2 -NU-SO 2 -R 2 (I) in which R 1 and R 2 represent, independently of one another, F, CF 3 , CH F 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , CeF 7 , or C 9 F 19 ; a salt of formula (II) below:
dans laquelle Rf représente F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeFi7, ou C9F19 ; et de leurs mélanges ; in which Rf represents F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C4H4F5, C5F11, C6F13, C7F15, CeFi7, or C 9 F 19; and their mixtures;
• ii) de 1 ppm à 10 000 ppm en poids d’au moins un sel de potassium B choisi dans le groupe constitué de KPF6 ; KBF4 ; CH3COOK; CH3SO3K ; CF3SO3K ; CF3COOK ; K2B12F12 ; KBC4O8 ; d’un sel de formule (III) suivante : R3-SO2-NK- SO2-R4 (III) dans laquelle R3 et R4 représentent, indépendamment l’un de l’autre, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeFi7, ou C9F19 ; d’un sel de formule (IV) suivante : Ii) from 1 ppm to 10,000 ppm by weight of at least one potassium salt B selected from the group consisting of KPF 6 ; KBF 4 ; CH 3 COOK; CH 3 SO 3 K; CF 3 SO 3 K; CF 3 COOK; K 2 B 12 F 12 ; KBC 4 O 8; a salt of the following formula (III): R 3 -SO 2 -NK-SO 2 -R 4 (III) in which R 3 and R 4 represent, independently of one another, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , CeF 7 , or C 9 F 19 ; a salt of formula (IV) below:
dans laquelle Rp représente F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeFi7, ou C9F19 ; et de leurs mélanges. wherein Rp is F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C4H4F5, C5F11, C6F13, C7F15, CeFi7, or C 9 F 19; and their mixtures.
Dans le cadre de l’invention, le terme de « ppm » ou « partie par million » s’entend de ppm en poids. In the context of the invention, the term "ppm" or "part per million" means ppm by weight.
Dans un mode de réalisation, la présente invention concerne un mélange comprenant (de préférence consistant essentiellement en, et préférentiellement consistant en): In one embodiment, the present invention relates to a mixture comprising (preferably consisting essentially of, and preferably consisting of):
• i) de 99% à 99,9999% en poids d’au moins un sel de lithium A choisi dans le groupe constitué de LiPF6 ; L1BF4 ; CH3COOU ; CH3SO3U ; CF3SO3U ; CF3COOU ; U2B12F12 ; UBC4O8 ; d’un sel de formule (I) suivante : R1-SO2-NU- SO2-R2 (I) dans laquelle Ri et R2 représentent, indépendamment l’un de l’autre, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeF-17, ou C9F19 ; I) from 99% to 99.9999% by weight of at least one lithium salt A selected from the group consisting of LiPF 6 ; L1BF 4 ; CH 3 COOU; CH 3 SO 3 U; CF 3 SO 3 U; CF 3 COOU; U 2 B 12 F 12 ; UBC 4 O 8 ; a salt of formula (I) below: R 1 -SO 2 -NU-SO 2 -R 2 (I) in which R 1 and R 2 represent, independently of one another, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , CeF 17, or C 9 F 19;
• ii) de 1 ppm à 10 000 ppm en poids d’au moins un sel de potassium B choisi dans le groupe constitué de KPF6 ; KBF4 ; CH3COOK; CH3SO3K ; CF3SO3K ; CF3COOK ; K2B12F12 ; KBC4O8 ; d’un sel de formule (III) suivante : R3-SO2-NK- SO2-R4 (III) dans laquelle R3 et R4 représentent, indépendamment l’un de l’autre, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeF-17, ou C9F19 ; d’un sel de formule (IV) suivante : Ii) from 1 ppm to 10,000 ppm by weight of at least one potassium salt B selected from the group consisting of KPF 6 ; KBF 4 ; CH 3 COOK; CH 3 SO 3 K; CF 3 SO 3 K; CF 3 COOK; K 2 B 12 F 12 ; KBC 4 O 8; a salt of the following formula (III): R 3 -SO 2 -NK-SO 2 -R 4 (III) in which R 3 and R 4 represent, independently of one another, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , CeF- 17 , or C 9 F 19 ; a salt of formula (IV) below:
dans laquelle Rp représente F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeF , ou C9F19 ; et de leurs mélanges. wherein Rp is F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C4H4F5, C5F11, C6F13, C7F15, CeF, or C 9 F 19; and their mixtures.
Selon un mode de réalisation, le mélange comprend : According to one embodiment, the mixture comprises:
i) de 99,1 % à 99,9999% en poids, de préférence de 99,2% à 99,9999% en poids, préférentiellement de 99,3% à 99,9999% en poids, avantageusement de 99,4% en poids à 99,9999% en poids, encore plus préférentiellement de 99,5% à 99,9999% en poids, encore plus avantageusement de 99,6% en poids à 99,9999% en poids, de manière privilégiée de 99,7% à 99,9999% en poids, par exemple de 99,8% à 99,9999% en poids, et en particulier de 99,9% à 99,9999% en poids d’au moins un sel de lithium A susmentionné, et/ou i) from 99.1% to 99.9999% by weight, preferably from 99.2% to 99.9999% by weight, preferably from 99.3% to 99.9999% by weight, advantageously 99.4% by weight by weight to 99.9999% by weight, still more preferably from 99.5% to 99.9999% by weight, still more preferably from 99.6% by weight to 99.9999% by weight, preferably 99%, 7% to 99.9999% by weight, for example from 99.8% to 99.9999% by weight, and in particular from 99.9% to 99.9999% by weight of at least one lithium salt A mentioned above , and or
ii) de 1 ppm à 9 000 ppm, de préférence de 1 à 8 000 ppm, préférentiellement de 1 à 7 000 ppm, avantageusement de 1 à 6 000 ppm, encore plus préférentiellement de 1 à 5 000 ppm, encore plus avantageusement de 1 à 4 000 ppm, de manière privilégiée de 1 à 3 000 ppm, par exemple de 1 à 2 000 ppm, et en particulier de 1 à 1 000 ppm d’au moins un sel de potassium B susmentionné. Selon un mode de réalisation, le mélange comprend de 1 à 1 000 ppm d’au moins un sel de potassium B susmentionné, de préférence de 1 à 50 ppm, préférentiellement de 1 à 20 ppm, et encore plus préférée de 1 à 10 ppm. ii) from 1 ppm to 9000 ppm, preferably from 1 to 8000 ppm, preferably from 1 to 7000 ppm, advantageously from 1 to 6000 ppm, even more preferably from 1 to 5000 ppm, even more advantageously from 1 to 6000 ppm; at 4000 ppm, preferably from 1 to 3000 ppm, for example from 1 to 2000 ppm, and in particular from 1 to 1000 ppm of at least one potassium salt B mentioned above. According to one embodiment, the mixture comprises from 1 to 1000 ppm of at least one aforementioned potassium salt B, preferably from 1 to 50 ppm, preferably from 1 to 20 ppm, and even more preferably from 1 to 10 ppm. .
Selon un mode de réalisation, le mélange comprend au moins un sel de lithium A tel que défini ci-dessus, en une teneur massique supérieure ou égale à 99% en poids par rapport au poids total du mélange, de préférence supérieure ou égale à 99,5%, préférentiellement supérieure ou égale à 99,9%, avantageusement supérieure ou égale à 99,95%, encore plus préférentiellement supérieure ou égale à 99,99%, encore plus avantageusement supérieure ou égale à 99,995%, de manière privilégiée supérieure ou égale à 99,999%, par exemple supérieure ou égale à 99,9995% en poids par rapport au poids total du mélange. According to one embodiment, the mixture comprises at least one lithium salt A as defined above, in a mass content greater than or equal to 99% by weight relative to the total weight of the mixture, preferably greater than or equal to 99 , 5%, preferentially greater than or equal to 99.9%, advantageously greater than or equal to 99.95%, still more preferably greater than or equal to 99.99%, still more advantageously greater than or equal to 99.995%, preferably higher or equal to 99.999%, for example greater than or equal to 99.9995% by weight relative to the total weight of the mixture.
Selon un mode de réalisation, le mélange comprend au moins un sel de potassium B tel que défini ci-dessus, en une teneur massique inférieure ou égale 10 000 ppm, de préférence inférieure ou égale à 5 000 ppm, préférentiellement inférieure ou égale à 1 000 ppm, avantageusement inférieure ou égale à 500 ppm, encore plus préférentiellement inférieure ou égale à 100 ppm, encore plus avantageusement inférieure ou égale à 50 ppm, de manière privilégiée inférieure ou égale à 10 ppm, par exemple inférieure ou égale à 5 ppm en poids par rapport au poids total du mélange. According to one embodiment, the mixture comprises at least one potassium salt B as defined above, in a mass content of less than or equal to 10,000 ppm, preferably less than or equal to 5,000 ppm, preferably less than or equal to 1 000 ppm, advantageously less than or equal to 500 ppm, even more preferably less than or equal to 100 ppm, even more advantageously less than or equal to 50 ppm, advantageously less than or equal to 10 ppm, for example less than or equal to 5 ppm in weight relative to the total weight of the mixture.
Selon un mode de réalisation, le mélange comprend : According to one embodiment, the mixture comprises:
i) de 99% à 99,999% en poids, de préférence de 99,5% à 99,999% en poids, préférentiellement de 99,7% à 99,999% en poids, avantageusement de 99,85% en poids à 99,999% en poids, encore plus préférentiellement de 99,85% à 99,995% en poids, encore plus avantageusement de 99,9% en poids à 99,99% en poids d’au moins un sel de lithium A susmentionné, et/ou i) from 99% to 99.999% by weight, preferably from 99.5% to 99.999% by weight, preferably from 99.7% to 99.999% by weight, advantageously from 99.85% by weight to 99.999% by weight, still more preferably from 99.85% to 99.995% by weight, still more preferably from 99.9% by weight to 99.99% by weight of at least one lithium salt A mentioned above, and / or
ii) de 10 ppm à 10 000 ppm, de préférence de 10 à 5 000 ppm, préférentiellement de 10 à 3 000 ppm, avantageusement de 10 à 1 500 ppm, encore plus préférentiellement de 50 à 1 500 ppm, encore plus avantageusement de 100 à 1 000 ppm d’au moins un sel de potassium B susmentionné. ii) from 10 ppm to 10,000 ppm, preferably from 10 to 5000 ppm, preferably from 10 to 3000 ppm, advantageously from 10 to 1500 ppm, even more preferably from 50 to 1500 ppm, even more advantageously from 100 to 500 ppm; at 1000 ppm of at least one potassium salt B mentioned above.
Selon un mode de réalisation, le mélange comprend au moins un sel de lithium A et au moins un sel de potassium B, lesdits sels ayant le même anion. Par exemple, le mélange peut comprendre le LiPF6 et le KPF6 (l’anion commun étant PF6 ), ou le mélange peut comprendre un sel de formule (I) dans laquelle Ri = R2 = F, et un sel de formule (III) dans laquelle R3 = R4 = F. According to one embodiment, the mixture comprises at least one lithium salt A and at least one potassium salt B, said salts having the same anion. For example, the mixture may comprise LiPF 6 and KPF 6 (the common anion being PF 6 ), or the mixture may comprise a salt of formula (I) in which R 1 = R 2 = F, and a salt of formula (III) wherein R 3 = R 4 = F.
Selon un mode de réalisation, le mélange comprend de préférence au moins sel de lithium A choisi dans le groupe constitué de LiPF6, LiBF4, CH3COOU, CH3SO3U, CF3SO3U, CF3COOU, L12B12F12, L1BC4O8, et de leurs mélanges, le sel de lithium A étant de préférence L1PF6 ; et au moins un sel de potassium B choisi dans le groupe constitué de KPF6, KBF4, CH3COOK, CH3SO3K, CF3SO3K, CF3COOK, K2B12F12, KBC4O8, et de leurs mélanges, le sel de potassium B étant de préférence KPF6. According to one embodiment, the mixture preferably comprises at least one lithium salt A chosen from the group consisting of LiPF 6 , LiBF 4 , CH 3 COO, CH 3 SO 3 U, CF 3 SO 3 U, CF 3 COO, L 1. 2 B 12 F 12 , L 1BC 4 O 8 , and mixtures thereof, the lithium salt A being preferably L1PF 6 ; and at least one potassium salt B selected from the group consisting of KPF 6 , KBF 4 , CH 3 COOK, CH 3 SO 3 K, CF 3 SO 3 K, CF 3 COOK, K 2 B 12 F 12 , KBC 4 O 8, and mixtures thereof, the potassium salt B being preferably KPF 6 .
Selon un mode de réalisation, le mélange comprend de préférence au moins sel de lithium A choisi dans le groupe constitué de LiPF6, L1BF4, CH3COOU, CH3SO3U, CF3SO3U, CF3COOU, U2B12F12, UBC4O8, et de leurs mélanges, le sel de lithium A étant de préférence LiPF6 ; et au moins un sel de potassium B ayant la formule (III) R3-SO2-NK-SO2-R4 dans laquelle R3 et R4 représentent, indépendamment l’un de l’autre, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeFi7, ou C9F19 . avec R3 et R4 représentant de préférence, indépendamment l’un de l’autre, F ou CF3, et préférentiellement F. According to one embodiment, the mixture preferably comprises at least one lithium salt A chosen from the group consisting of LiPF 6 , L 1 BF 4 , CH 3 COOH, CH 3 SO 3 U, CF 3 SO 3 U, CF 3 COO, U 2 B 12 F 12 , UBC 4 O 8 , and mixtures thereof, the lithium salt A being preferably LiPF 6 ; and at least one potassium salt B having the formula (III) R 3 -SO 2 -NK-SO 2 -R 4 in which R 3 and R 4 represent, independently of one another, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3, C 2 H 3 F 2 , C 2 F 5, C 3 F 7, C 3 H 2 F 5, C 3 H 4 F 3, C 4 F 9, C 4 H 2 F 7, C 4 H 4 F 5, C 5 F 11, C 6 F 13, C 7 F 15, CeF 7, or C 9 F 19 . with R 3 and R 4 preferably representing, independently of one another, F or CF 3 , and preferably F.
Selon un mode de réalisation, le mélange comprend de préférence au moins sel de lithium A choisi dans le groupe constitué de LiPF6, L1BF4, CH3COOU, CH3SO3U, CF3SO3U, CF3COOU, U2B12F12, UBC4O8, et de leurs mélanges, le sel de lithium A étant de préférence LiPF6 ; et au moins un sel de potassium B ayant la formule (IV) susmentionnée dans laquelle Rp représente F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, C8Fi7, OU C9F19 , Rp représentant de préférence CF3. According to one embodiment, the mixture preferably comprises at least one lithium salt A chosen from the group consisting of LiPF 6 , L 1 BF 4 , CH 3 COOH, CH 3 SO 3 U, CF 3 SO 3 U, CF 3 COO, U 2 B 12 F 12 , UBC 4 O 8 , and mixtures thereof, the lithium salt A being preferably LiPF 6 ; and at least one potassium salt B having the above-mentioned formula (IV) wherein Rp is F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15, C 8 F 17, OR C 9 F 19, preferably Rp CF3.
Selon un mode de réalisation, le mélange comprend de préférence au moins sel de lithium A ayant la formule (I) R1-SO2-NK-SO2-R2 dans laquelle Ri et R2 représentent, indépendamment l’un de l’autre, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeFi7, ou C9F19 , avec Ri et R2 représentant de préférence, indépendamment l’un de l’autre, F ou CF3, et préférentiellement F ; et au moins un sel de potassium B choisi dans le groupe constitué de KPF6, KBF4, CH3COOK, CH3SO3K, CF3SO3K, CF3COOK, K2B12F12, KBC4O8, et de leurs mélanges, le sel de potassium étant de préférence KPF6. According to one embodiment, the mixture preferably comprises at least one lithium salt A having the formula (I) R 1 -SO 2 -NK-SO 2 -R 2 in which R 1 and R 2 represent, independently of one of the other, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , CeF 7 , or C 9 F 19 , with R and R 2 is preferably, independently of each other, F or CF 3, and more preferably F; and at least one potassium salt B selected from the group consisting of KPF 6 , KBF 4 , CH 3 COOK, CH 3 SO 3 K, CF 3 SO 3 K, CF 3 COOK, K 2 B 12 F 12 , KBC 4 O 8, and mixtures thereof, the potassium salt being preferably KPF 6 .
Selon un mode de réalisation, le mélange comprend de préférence au moins sel de lithium A ayant la formule (I) R1-SO2-NK-SO2-R2 dans laquelle Ri et R2 représentent, indépendamment l’un de l’autre, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeFi7, ou C9F19 , avec Ri et R2 représentant de préférence, indépendamment l’un de l’autre, F ou CF3, et préférentiellement F ; et au moins un sel de potassium B ayant la formule (III) R3-SO2-NK-SO2-R4 dans laquelle R3 et R4 représentent, indépendamment l’un de l’autre, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeF , ou C9F19, avec R3 et R4 représentant de préférence, indépendamment l’un de l’autre, F ou CF3, et préférentiellement F. Selon un mode de réalisation, le mélange comprend de préférence au moins sel de lithium A ayant la formule (I) R1-SO2-NK-SO2-R2 dans laquelle Ri et R2 représentent, indépendamment l’un de l’autre, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeFi7, ou C9F19, avec Ri et R2 représentant de préférence, indépendamment l’un de l’autre, F ou CF3, et préférentiellement F ; et au moins un sel de potassium B ayant la formule (IV) susmentionnée dans laquelle Rp représente F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CsF , ou C9F19, Rp représentant de préférence CF3. According to one embodiment, the mixture preferably comprises at least one lithium salt A having the formula (I) R 1 -SO 2 -NK-SO 2 -R 2 in which R 1 and R 2 represent, independently of one of the other, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , CeF 7 , or C 9 F 19 , with R and R 2 is preferably, independently of each other, F or CF 3, and more preferably F; and at least one potassium salt B having the formula (III) R 3 -SO 2 -NK-SO 2 -R 4 in which R 3 and R 4 represent, independently of one another, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9, C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11, C 6 F 13 , C 7 F 15 , CeF, or C 9 F 19, with R 3 and R 4 preferably represents, independently of one another, F or CF 3 , and preferably F. According to one embodiment, the mixture preferably comprises at least one lithium salt A having the formula (I) R 1 -SO 2 -NK-SO 2 -R 2 in which R 1 and R 2 represent, independently of one of the other, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , CeF 7 , or C 9 F 19 , with R and R 2 is preferably, independently of each other, F or CF 3, and more preferably F; and at least one potassium salt B having the above-mentioned formula (IV) wherein Rp is F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , Cs F, or C 9 F 19 , R 9 preferably representing CF 3.
Selon un mode de réalisation, le mélange comprend de préférence au moins sel de lithium A ayant la formule (II) susmentionnée dans laquelle Rf représente F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CsF , ou C9F19, Rf représentant de préférence CF3 ; et au moins un sel de potassium B choisi dans le groupe constitué de KPF6, KBF4 , CH3COOK, CH3SO3K, CF3SO3K, CF3COOK, K2B12F12, KBC4O8, et de leurs mélanges, le sel de potassium B étant de préférence KPF6. According to one embodiment, the mixture preferably comprises at least one lithium salt A having the above-mentioned formula (II) in which Rf represents F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4, C 2 H 2 F 3 , C 2 H 3 F 2, C 2 F 5, C 3 F 7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CsF, or C 9 F 19, preferably Rf represents CF 3; and at least one potassium salt B selected from the group consisting of KPF 6 , KBF 4 , CH 3 COOK, CH 3 SO 3 K, CF 3 SO 3 K, CF 3 COOK, K 2 B 12 F 12 , KBC 4 O 8, and mixtures thereof, the potassium salt B being preferably KPF 6 .
Selon un mode de réalisation, le mélange comprend de préférence au moins sel de lithium A ayant la formule (II) susmentionnée dans laquelle Rf représente F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F-I3, C7F15, CsF , ou C9F19, Rf représentant de préférence CF3 ; et au moins un sel de potassium B ayant la formule (III) R3-SO2-NK-SO2-R4 dans laquelle R3 et R4 représentent, indépendamment l’un de l’autre, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CsF , ou C9F19, avec R3 et R4 représentant de préférence, indépendamment l’un de l’autre, F ou CF3, et préférentiellement F. According to one embodiment, the mixture preferably comprises at least one lithium salt A having the above-mentioned formula (II) in which Rf represents F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4, C 2 H 2 F 3 , C 2 H 3 F 2, C 2 F 5, C 3 F 7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F-I3, C7F15, CsF, or C 9 F 19, preferably Rf represents CF 3; and at least one potassium salt B having the formula (III) R 3 -SO 2 -NK-SO 2 -R 4 in which R 3 and R 4 represent, independently of one another, F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3 , C 2 H 3 F 2 , C 2 F 5 , C 3 F 7 , C 3 H 2 F 5 , C 3 H 4 F 3 , C 4 F 9 , C 4 H 2 F 7 , C 4 H 4 F 5 , C 5 F 11 , C 6 F 13 , C 7 F 15 , CsF, or C 9 F 19, with R 3 and R 4 representing preferably, independently of one another, F or CF 3 , and preferably F.
Selon un mode de réalisation, le mélange comprend de préférence au moins sel de lithium A ayant la formule (II) susmentionnée dans laquelle Rf représente F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F-I3, C7F15, CsF , ou C9F19, Rf représentant de préférence CF3 ; et au moins un sel de potassium B ayant la formule (IV) susmentionnée dans laquelle Rp représente F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeFi7, ou C9F19, Rp représentant de préférence CF3. According to one embodiment, the mixture preferably comprises at least one lithium salt A having the above-mentioned formula (II) in which Rf represents F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4, C 2 H 2 F 3 , C 2 H 3 F 2, C 2 F 5, C 3 F 7, C3H2F5, C3H4F3, C4F9, C4H2F7, C4H4F5, C5F11, C6F-I3, C7F15, CsF, or C 9 F 19, preferably Rf represents CF 3; and at least one potassium salt B having the above-mentioned formula (IV) wherein Rp is F, CF 3 , CHF 2 , CH 2 F, C 2 HF 4 , C 2 H 2 F 3, C 2 H 3 F 2 , C 2 F 5, C 3 F 7, C 3 H 2 F 5, C 3 H 4 F 3, C 4 F 9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, CeFi7, or C 9 F 19, R preferably representing CF 3.
Selon un mode de réalisation préféré, le mélange comprend au moins un sel de lithium A choisi parmi le LiPF6, un composé de formule (I) dans lequel Ri = R2 = F ou Ri = R2 = CF3, et un composé de formule (II) dans laquelle Rf représente CF3 ; et au moins un sel de potassium B choisi parmi le KPF6, un composé de formule (III) dans laquelle R3 = R4 = F ou R3 = R4 = CF3 , et un composé de formule (IV) dans laquelle Rp représente CF3. According to a preferred embodiment, the mixture comprises at least one lithium salt A chosen from LiPF 6, a compound of formula (I) in which R 1 = R 2 = F or R 1 = R 2 = CF 3, and a compound of formula (II) in which R f is CF 3 ; and at least one potassium salt B selected from KPF 6 , a compound of formula (III) in which R 3 = R 4 = F or R 3 = R 4 = CF 3, and a compound of formula (IV) in which R p is CF 3.
De préférence, le mélange de l’invention est choisi parmi l’un des mélanges suivants : mélange comprenant LiFSI (sel A) et KFSI (sel B de formule (III) avec R3=R4=F); mélange comprenant LiFSI (sel A) et KTDI (sel B de formule (IV) avec Rp = CF3); mélange comprenant LiFSI (sel A) et KPF6 (sel B) ; Preferably, the mixture of the invention is chosen from one of the following mixtures: mixture comprising LiFSI (salt A) and KFSI (salt B of formula (III) with R 3 = R 4 = F); mixture comprising LiFSI (salt A) and KTDI (salt B of formula (IV) with R p = CF 3 ); mixture comprising LiFSI (salt A) and KPF 6 (salt B);
mélange comprenant LiTDI (sel A de formule (II) avec Rf=CF3) et KTDI (sel B de formule (IV) avec Rp = CF3); mixture comprising LiTDI (salt A of formula (II) with R f = CF 3 ) and KTDI (salt B of formula (IV) with R p = CF 3 );
mélange comprenant LiTDI (sel A de formule (II) avec Rf=CF3) et KPF6 ; mélange comprenant LiTDI (sel A de formule (II) avec Rf=CF3) et KFSI (sel B de formule (III) avec R3=R4=F); mixture comprising LiTDI (salt A of formula (II) with R f = CF 3 ) and KPF 6 ; mixture comprising LiTDI (salt A of formula (II) with R f = CF 3 ) and KFSI (salt B of formula (III) with R 3 = R 4 = F);
mélange comprenant UPF6 (sel A) et KFSI (sel B de formule (III) avec R3=R4=F); mélange comprenant UPF6 (sel A) et KPF6 (sel B) ; mixture comprising UPF 6 (salt A) and KFSI (salt B of formula (III) with R 3 = R 4 = F); mixture comprising UPF 6 (salt A) and KPF 6 (salt B);
mélange comprenant UPF6 (sel A) et KTDI (sel B de formule (IV) avec Rp = CF3); mélange comprenant LiFSI et L1PF6 (sels A) et KFSI (sel B de formule (III) avec R3=R4=F); mixture comprising UPF 6 (salt A) and KTDI (salt B of formula (IV) with R p = CF 3 ); mixture comprising LiFSI and L1PF 6 (salts A) and KFSI (salt B of formula (III) with R 3 = R 4 = F);
mélange comprenant LiFSI et UPF6 (sels A) et KTDI (sel B de formule (IV) avec Rp = CF3); mixture comprising LiFSI and UPF 6 (salts A) and KTDI (salt B of formula (IV) with R p = CF 3 );
mélange comprenant LiFSI et UPF6 (sels A) et KPF6 (sel B) ; mixture comprising LiFSI and UPF 6 (salts A) and KPF 6 (salt B);
mélange comprenant LiFSI et LiTDI (formule (II) avec Rf=CF3) (sels A) et KTDI (selmixture comprising LiFSI and LiTDI (formula (II) with R f = CF 3 ) (salts A) and KTDI (salt
B de formule (IV) avec Rp = CF3); B of formula (IV) with R p = CF 3 );
mélange comprenant LiFSI et LiTDI (formule (II) avec Rf=CF3) (sels A) et KFSI (sel B de formule (III) avec R3=R4=F); mixture comprising LiFSI and LiTDI (formula (II) with R f = CF 3 ) (salts A) and KFSI (salt B of formula (III) with R 3 = R 4 = F);
mélange comprenant LiFSI et LiTDI (formule (II) avec Rf=CF3) (sels A) et KPF6 (sel B) ; mixture comprising LiFSI and LiTDI (formula (II) with R f = CF 3 ) (salts A) and KPF 6 (salt B);
mélange comprenant UPF6 et LiTDI (formule (II) avec Rf=CF3) (sels A) et KTDI (sel B de formule (IV) avec Rp = CF3); mixture comprising UPF 6 and LiTDI (formula (II) with R f = CF 3 ) (salts A) and KTDI (salt B of formula (IV) with R p = CF 3 );
mélange comprenant UPF6 et LiTDI (formule (II) avec Rf=CF3) (sels A) et KFSI (sel B de formule (III) avec R3=R4=F); et mixture comprising UPF 6 and LiTDI (formula (II) with R f = CF 3 ) (salts A) and KFSI (salt B of formula (III) with R 3 = R 4 = F); and
mélange comprenant UPF6 et LiTDI (formule (II) avec Rf=CF3) (sels A) et KPF6 (sel B). mixture comprising UPF 6 and LiTDI (formula (II) with R f = CF 3 ) (salts A) and KPF 6 (salt B).
De façon encore plus préférée, le mélange de l’invention est choisi parmi l’un des mélanges suivants : Even more preferably, the mixture of the invention is chosen from one of the following mixtures:
mélange comprenant LiFSI (sel A) et KFSI (sel B de formule (III) avec R3=R4=F); mélange comprenant UPF6 (sel A) et KPF6 (sel B) ; mixture comprising LiFSI (salt A) and KFSI (salt B of formula (III) with R 3 = R 4 = F); mixture comprising UPF 6 (salt A) and KPF 6 (salt B);
mélange comprenant LiFSI (sel A) et KTDI (sel B de formule (IV) avec Rp = CF3); mélange comprenant LiFSI et L1PF6 (sels A) et KFSI (sel B de formule (III) avec R3=R4=F); mixture comprising LiFSI (salt A) and KTDI (salt B of formula (IV) with R p = CF 3 ); mixture comprising LiFSI and L1PF 6 (salts A) and KFSI (salt B of formula (III) with R 3 = R 4 = F);
et encore plus préférentiellement choisi parmi l’un des mélanges suivants : and even more preferably chosen from one of the following mixtures:
mélange comprenant LiFSI (sel A) et KFSI (sel B de formule (III) avec R3=R4=F); mélange comprenant LiPF6 (sel A) et KPF6 (sel B). mixture comprising LiFSI (salt A) and KFSI (salt B of formula (III) with R 3 = R 4 = F); mixture comprising LiPF 6 (salt A) and KPF 6 (salt B).
Selon un mode de réalisation préféré, le mélange de l’invention est un mélange comprenant LiFSI (sel A) et KFSI (sel B de formule (III) avec R3=R4=F), la quantité en KFSI allant de 1 à 1 000 ppm, de préférence de 1 à 50 ppm, préférentiellement de 1 à 20 ppm, et encore plus préférée de 1 à 10 ppm par rapport au poids total du mélange. According to a preferred embodiment, the mixture of the invention is a mixture comprising LiFSI (salt A) and KFSI (salt B of formula (III) with R 3 = R 4 = F), the amount in KFSI ranging from 1 to 1000 ppm, preferably from 1 to 50 ppm, preferably from 1 to 20 ppm, and even more preferably from 1 to 10 ppm relative to the total weight of the mixture.
Le mélange selon l’invention peut être préparé par mélange des différents constituants soit simultanément, soit consécutivement. The mixture according to the invention can be prepared by mixing the various constituents either simultaneously or consecutively.
La présente demande concerne aussi l’utilisation d’un mélange tel que défini ci-dessus, dans une batterie, par exemple une batterie Li-ion, en particulier à une température supérieure ou égale à 25°C, de préférence comprise entre 25°C et 80°C, et/ou en particulier à une tension comprise entre 4 et 5, de préférence à 4,2, 4,35, 4,4, 4,5 ou 4,7 volts. Par exemple, l'utilisation se fait dans des appareils nomades, par exemple les téléphones portables, les appareils photos, les tablettes ou les ordinateurs portables, dans des véhicules électriques, ou dans le stockage d’énergie renouvelable. The present application also relates to the use of a mixture as defined above, in a battery, for example a Li-ion battery, in particular at a temperature greater than or equal to 25 ° C., preferably of between 25 ° C. C and 80 ° C, and / or in particular at a tension of between 4 and 5, preferably at 4.2, 4.35, 4.4, 4.5 or 4.7 volts. For example, the use is in mobile devices, for example mobile phones, cameras, tablets or laptops, in electric vehicles, or in the storage of renewable energy.
La présente invention concerne également une composition d’électrolyte, notamment pour batterie telle que par exemple batterie Li-ion, comprenant le mélange de sels de lithium tel que défini ci-dessus, au moins un solvant, et éventuellement au moins un additif électrolytique. The present invention also relates to an electrolyte composition, in particular for a battery such as for example a Li-ion battery, comprising the mixture of lithium salts as defined above, at least one solvent, and optionally at least one electrolytic additive.
De préférence, la composition d’électrolyte ne comprend pas d’autre sel alcalin ou alcanino-terreux que ceux du mélange susmentionné. Preferably, the electrolyte composition does not comprise any other alkali or alkaline earth salt than those of the aforementioned mixture.
De préférence, la composition d’électrolyte ne comprend pas d’autre sel de lithium ni d’autre sel de potassium que ceux mentionnés précédemment pour le mélange. Preferably, the electrolyte composition does not comprise any other lithium salt or other potassium salt than those mentioned above for the mixture.
De préférence, les sels de potassium et de lithium susmentionnés pour le mélange représentent 100% de la totalité des sels présents dans la composition. Preferably, the potassium and lithium salts mentioned above for the mixture represent 100% of all the salts present in the composition.
Dans le cadre de l’invention, on utilise de manière interchangeable « composition d’électrolyte », « électrolyte » et « composition électrolytique ». In the context of the invention, "electrolyte composition", "electrolyte" and "electrolyte composition" are used interchangeably.
Selon un mode de réalisation préféré, la composition d’électrolyte comprend de 1 % à 99% en masse du mélange susmentionné, de préférence de 5% à 99%, et avantageusement de 20% à 95%, par rapport à la masse totale de la composition. Selon un mode de réalisation préféré, la composition d’électrolyte comprend de 1 % à 99% en masse de solvant, de préférence de 5% à 99%, et avantageusement de 20% à 95%, par rapport à la masse totale de la composition. According to a preferred embodiment, the electrolyte composition comprises from 1% to 99% by weight of the aforementioned mixture, preferably from 5% to 99%, and advantageously from 20% to 95%, relative to the total mass of the composition. According to a preferred embodiment, the electrolyte composition comprises from 1% to 99% by weight of solvent, preferably from 5% to 99%, and advantageously from 20% to 95%, relative to the total mass of the composition.
Selon un mode de réalisation, la concentration molaire du mélange susmentionné dans la composition d’électrolyte est inférieure ou égale à 7 mol/L, avantageusement inférieure ou égale à 4 mol/L, de préférence inférieure ou égale à 2 mol/L, préférentiellement inférieure ou égale à 1 ,5 mol/L, et en particulier inférieure ou égale à 1 ,1 mol/L, par exemple inférieure ou égale à 1 mol/L. According to one embodiment, the molar concentration of the aforementioned mixture in the electrolyte composition is less than or equal to 7 mol / L, advantageously less than or equal to 4 mol / L, preferably less than or equal to 2 mol / L, preferentially less than or equal to 1, 5 mol / L, and in particular less than or equal to 1, 1 mol / L, for example less than or equal to 1 mol / L.
Selon un mode de réalisation, la composition d’électrolyte peut comprendre un solvant ou un mélange de solvants, tel que par exemple deux, trois ou quatre solvants différents. According to one embodiment, the electrolyte composition may comprise a solvent or a mixture of solvents, such as for example two, three or four different solvents.
Le solvant de la composition d’électrolyte peut être un solvant liquide, éventuellement gélifié par un polymère, ou un solvant polymère polaire éventuellement plastifié par un liquide. The solvent of the electrolyte composition may be a liquid solvent, optionally gelled with a polymer, or a polar polymer solvent optionally plasticized with a liquid.
Selon un mode de réalisation, le solvant est un solvant organique, de préférence aprotique. De préférence, le solvant est un solvant organique polaire. According to one embodiment, the solvent is an organic solvent, preferably aprotic. Preferably, the solvent is a polar organic solvent.
Selon un mode de réalisation, le solvant est choisi parmi le groupe constitué des éthers, des carbonates, des esters, des cétones, des hydrocarbures partiellement hydrogénés, des nitriles, des amides, des alcools, des sulfoxydes, du sulfolane, du nitrométhane, de la 1 ,3- diméthyl-2-imidazolidinone, de la 1 ,3-diméthyl-3,4,5,6-tétrahydro-2(1 ,H)-pyrimidinone, de la 3- méthyl-2-oxazolidinone, et de leurs mélanges. According to one embodiment, the solvent is selected from the group consisting of ethers, carbonates, esters, ketones, partially hydrogenated hydrocarbons, nitriles, amides, alcohols, sulfoxides, sulfolane, nitromethane, 1,3-dimethyl-2-imidazolidinone, 1,3-dimethyl-3,4,5,6-tetrahydro-2 (1H) -pyrimidinone, 3-methyl-2-oxazolidinone, and their mixtures.
Parmi les éthers, on peut citer les éthers linéaires ou cycliques, tels que par exemple le diméthoxyéthane (DME), les éthers méthyliques des oligoéthylène glycols de 2 à 5 unités oxyéthylènes, le dioxolane, le dioxane, le dibutyle éther, le tétrahydrofurane, et leurs mélanges. Among the ethers, mention may be made of linear or cyclic ethers, such as for example dimethoxyethane (DME), methyl ethers of oligoethylene glycols of 2 to 5 oxyethylene units, dioxolane, dioxane, dibutyl ether, tetrahydrofuran, and their mixtures.
Parmi les esters, on peut citer les esters d’acide phosphorique ou les esters de sulfite. On peut par exemple citer le formate de méthyle, l’acétate de méthyle, le propionate de méthyle, l’acétate d’éthyle, l’acétate de butyle, la gamma butyrolactone ou leurs mélanges. Among the esters, mention may be made of phosphoric acid esters or sulphite esters. Mention may be made, for example, of methyl formate, methyl acetate, methyl propionate, ethyl acetate, butyl acetate, gamma butyrolactone or their mixtures.
Parmi les cétones, on peut notamment citer la cyclohexanone. Among the ketones, there may be mentioned cyclohexanone.
Parmi les alcools, on peut par exemple citer l’alcool éthylique, l’alcool isopropylique. Among the alcohols, mention may be made, for example, of ethyl alcohol or isopropyl alcohol.
Parmi les nitriles, on peut citer par exemple l’acétonitrile, le pyruvonitrile, le propionitrile, le méthoxypropionitrile, le diméthylaminopropionitrile, le butyronitrile, l’isobutyronitrile, le valéronitrile, le pivalonitrile, l’isovaléronitrile, le glutaronitrile, le méthoxyglutaronitrile, le 2- méthylglutaronitrile, le 3-méthylglutaronitrile, l’adiponitrile, le malononitrile, et leurs mélanges. Among the nitriles, there may be mentioned for example acetonitrile, pyruvonitrile, propionitrile, methoxypropionitrile, dimethylaminopropionitrile, butyronitrile, isobutyronitrile, valeronitrile, pivalonitrile, isovaleronitrile, glutaronitrile, methoxyglutaronitrile, 2-methylglutaronitrile, 3-methylglutaronitrile, adiponitrile, malononitrile, and mixtures thereof.
Parmi les carbonates, on peut citer par exemple les carbonates cycliques tels que par exemple le carbonate d’éthylène (EC) (CAS : 96-49-1 ) , le carbonate de propylène (PC) (CAS : 108-32-7), le carbonate de butylène (BC) (CAS : 4437-85-8), le carbonate de diméthyle (DMC) (CAS : 616-38-6), le carbonate de diéthyle (DEC) (CAS : 105-58-8), le carbonate de méthyle éthyle (EMC) (CAS : 623-53-0), le carbonate de diphényle(CAS 102-09-0), le carbonate de méthyle phényle (CAS : 13509-27-8), le carbonate de dipropyle (DPC) (CAS : 623-96-1 ), le carbonate de méthyle et de propyle (MPC) (CAS : 1333-41-1 ), le carbonate d’éthyle et de propyle (EPC), le carbonate de vinylène (VC) (CAS : 872-36-6), le fluoroethylène carbonate (FEC) (CAS : 114435-02-8), le trifluoropropylène carbonate (CAS : 167951-80-6) ou leurs mélanges. Among the carbonates, mention may be made, for example, of cyclic carbonates such as, for example, ethylene carbonate (EC) (CAS: 96-49-1), propylene carbonate (PC) (CAS: 108-32-7) , butylene carbonate (BC) (CAS: 4437-85-8), dimethyl carbonate (DMC) (CAS: 616-38-6), diethyl carbonate (DEC) (CAS: 105-58-8 ), methyl carbonate ethyl (EMC) (CAS: 623-53-0), diphenyl carbonate (CAS 102-09-0), methyl carbonate phenyl (CAS: 13509-27-8), carbonate of dipropyl (DPC) (CAS: 623-96-1), methyl carbonate and propyl (MPC) (CAS: 1333-41-1), ethyl carbonate and propyl carbonate (EPC), carbonate of vinylene (VC) (CAS: 872-36-6), fluoroethylene carbonate (FEC) (CAS: 114435-02-8), trifluoropropylene carbonate (CAS: 167951-80-6) or mixtures thereof.
Le solvant particulièrement préféré est choisi parmi les carbonates et leurs mélanges. The particularly preferred solvent is selected from carbonates and mixtures thereof.
Selon un mode de réalisation, la composition d’électrolyte comprend l’un des mélanges suivants : carbonate d’éthylène (EC)/carbonate de propylène (PC)/carbonate de diméthyle (DMC) dans un rapport massique 1/1/1 ; According to one embodiment, the electrolyte composition comprises one of the following mixtures: ethylene carbonate (EC) / propylene carbonate (PC) / dimethyl carbonate (DMC) in a 1/1/1 mass ratio;
carbonate d’éthylène (EC)/carbonate de propylène (PC)/carbonate de diéthyle (DEC) dans un rapport massique 1/1/1 ; ethylene carbonate (EC) / propylene carbonate (PC) / diethyl carbonate (DEC) in a weight ratio 1/1/1;
carbonate d’éthylène (EC)/carbonate de propylène (PC)/carbonate de méthyle éthyle (EMC) dans un rapport massique 1/1/1 ; ethylene carbonate (EC) / propylene carbonate (PC) / methyl ethyl carbonate (EMC) in a weight ratio 1/1/1;
carbonate d’éthylène (EC)/carbonate de diméthyle (DMC) dans un rapport massique 1/1 ; ethylene carbonate (EC) / dimethyl carbonate (DMC) in a weight ratio 1/1;
carbonate d’éthylène (EC)/carbonate de diéthyle (DEC) dans un rapport massique 1/1 ; ethylene carbonate (EC) / diethyl carbonate (DEC) in a weight ratio 1/1;
carbonate d’éthylène (EC)/carbonate de méthyle éthyle (EMC) dans un rapport massique 1/1 ; ethylene carbonate (EC) / methyl ethyl carbonate (EMC) in a weight ratio 1/1;
carbonate d’éthylène (EC)/carbonate de diméthyle (DMC) dans un rapport massique dans un rapport volumique 3/7 ; ethylene carbonate (EC) / dimethyl carbonate (DMC) in a mass ratio in a volume ratio of 3/7;
carbonate d’éthylène (EC)/carbonate de diéthyle (DEC) dans un rapport volumique 3/7 ; ethylene carbonate (EC) / diethyl carbonate (DEC) in a volume ratio of 3/7;
carbonate d’éthylène (EC)/carbonate de méthyle éthyle (EMC) dans un rapport volumique 3/7 ; ethylene carbonate (EC) / methyl ethyl carbonate (EMC) in a volume ratio of 3/7;
Dioxolane (DOL)/diméthoxyéthane (DME) dans un rapport volumique 2/1 ; Dioxolane (DOL)/diméthoxyéthane (DME) dans un rapport volumique 1/1. Dioxolane (DOL) / dimethoxyethane (DME) in a volume ratio of 2/1; Dioxolane (DOL) / dimethoxyethane (DME) in a 1/1 volume ratio.
Selon un mode de réalisation, la composition d’électrolyte comprend au moins un additif électrolytique. According to one embodiment, the electrolyte composition comprises at least one electrolytic additive.
De préférence, l’additif électrolytique est choisi parmi le groupe constitué du carbonate de fluoroéthylène (FEC), du carbonate de vinylène, du 4-vinyl-1 ,3-dioxolan-2-one, de la pyridazine, de la vinyl pyridazine, de la quinoline, de la vinyl quinoline, du butadiène, du sébaconitrile, du LiB(C204)2, du nitrate de lithium, des alkyldisulfure, du fluorotoluène, du 1 ,4- diméthoxytétrafluorotoluène, du t-butylphenol, du di-t-butylphenol, du tris(pentafluorophenyl)borane, des oximes, des époxydes aliphatiques, des biphényls halogénés, des acides métacryliques, du carbonate d’allyle éthyle, de l’acétate de vinyle, de l’adipate de divinyle, de l’acrylonitrile, du 2-vinylpyridine, de l’anhydride maléïque, du cinnamate de méthyle, des phosphonates, des composés silane contenant un vinyle, du 2- cyanofurane et de leurs mélanges, l’additif électrolytique étant de préférence le carbonate de fluoroéthylène (FEC). Preferably, the electrolyte additive is selected from the group consisting of fluoroethylene carbonate (FEC), vinylene carbonate, 4-vinyl-1,3-dioxolan-2-one, pyridazine, vinyl pyridazine, quinoline, vinyl quinoline, butadiene, sebaconitrile, LiB (C 2 O 4 ) 2 , lithium nitrate, alkyldisulfide, fluorotoluene, 1,4-dimethoxytetrafluorotoluene, t-butylphenol t-butylphenol, tris (pentafluorophenyl) borane, oximes, aliphatic epoxides, halogenated biphenyls, methacrylic acids, ethyl allyl carbonate, vinyl acetate, divinyl adipate, acrylonitrile, 2-vinylpyridine, maleic anhydride, methyl cinnamate, phosphonates, vinyl-containing silane compounds, 2-cyanofuran and mixtures thereof, the electrolyte additive being preferably fluoroethylene carbonate ( FEC).
Par exemple, la teneur en additif électrolytique dans la composition d’électrolyte est comprise entre 0,01 % et 10%, de préférence entre 0,1 % et 4% en masse par rapport à la masse totale de la composition d’électrolyte. En particulier, la teneur en additif électrolytique dans la composition d’électrolyte est inférieure ou égale à 2% en masse par rapport à la masse totale de la composition. For example, the content of electrolyte additive in the electrolyte composition is between 0.01% and 10%, preferably between 0.1% and 4% by weight relative to the total mass of the electrolyte composition. In particular, the content of electrolyte additive in the electrolyte composition is less than or equal to 2% by weight relative to the total mass of the composition.
La teneur en additif électrolytique dans la composition d’électrolyte peut par exemple être comprise entre 0,01% et 10%, de préférence entre 0,1% et 4% en poids, par rapport au poids total du solvant de ladite composition. The content of electrolyte additive in the electrolyte composition may for example be between 0.01% and 10%, preferably between 0.1% and 4% by weight, relative to the total weight of the solvent of said composition.
La composition d’électrolyte, peut être préparée par tout moyen connu de l’homme du métier, par exemple par dissolution, de préférence sous agitation, des sels dans des proportions appropriées de solvant(s) et/ou d’additif(s). The electrolyte composition may be prepared by any means known to those skilled in the art, for example by dissolving, preferably with stirring, salts in appropriate proportions of solvent (s) and / or additive (s). .
La présente demande concerne aussi l'utilisation d’une composition d’électrolyte telle que définie ci-dessus dans une batterie, par exemple une batterie Li-ion, en particulier à une température supérieure ou égale à 25°C, de préférence comprise entre 25°C et 80°C, et/ou en particulier à une tension comprise entre 4 et 5, de préférence à 4,2, 4,35, 4,4, 4,5 ou 4,7 volts. Par exemple, l’utilisation se fait dans des appareils nomades, par exemple les téléphones portables, les appareils photos, les tablettes ou les ordinateurs portables, dans des véhicules électriques, ou dans le stockage d’énergie renouvelable. The present application also relates to the use of an electrolyte composition as defined above in a battery, for example a Li-ion battery, in particular at a temperature greater than or equal to 25 ° C., preferably between 25 ° C and 80 ° C, and / or in particular at a voltage of between 4 and 5, preferably at 4.2, 4.35, 4.4, 4.5 or 4.7 volts. For example, the use is made in mobile devices, for example the mobile phones, cameras, tablets or laptops, in electric vehicles, or in renewable energy storage.
Cellule électrochimigue Electrochemical cell
La présente demande concerne également une cellule électrochimique comportant une électrode négative, une électrode positive, et un mélange de sels de lithium tel que décrit ci-dessus. The present application also relates to an electrochemical cell comprising a negative electrode, a positive electrode, and a mixture of lithium salts as described above.
La présente demande concerne également une cellule électrochimique comportant une électrode négative, une électrode positive, et une composition d’électrolyte telle qu’ici définie ci-dessus, interposée entre l’électrode négative et l’électrode positive. La cellule électrochimique peut aussi comprendre un séparateur, dans lequel est imprégnée la composition d’électrolyte telle que définie ci-dessus. The present application also relates to an electrochemical cell comprising a negative electrode, a positive electrode, and an electrolyte composition as defined above, interposed between the negative electrode and the positive electrode. The electrochemical cell may also comprise a separator, in which the electrolyte composition as defined above is impregnated.
La présente invention concerne également une batterie comprenant au moins une cellule électrochimique telle que décrite ci-dessus. Lorsque la batterie comprend plusieurs cellules électrochimiques selon l’invention, lesdites cellules peuvent être assemblées en série et/ou en parallèle. The present invention also relates to a battery comprising at least one electrochemical cell as described above. When the battery comprises several electrochemical cells according to the invention, said cells can be assembled in series and / or in parallel.
Dans le cadre de l’invention, par électrode négative, on entend l’électrode qui fait office d’anode, quand la batterie débite du courant (c’est-à-dire lorsqu’elle est en processus de décharge) et qui fait office de cathode lorsque la batterie est en processus de charge. In the context of the invention, the term "negative electrode" means the electrode which acts as anode, when the battery delivers current (that is to say when it is in the process of discharge) and which makes cathode office when the battery is charging process.
L’électrode négative comprend typiquement un matériau électrochimiquement actif, éventuellement un matériau conducteur électronique, et éventuellement un liant. The negative electrode typically comprises an electrochemically active material, optionally an electronically conductive material, and optionally a binder.
Dans le cadre de l’invention, on entend par « matériau électrochimiquement actif », un matériau capable d’insérer de manière réversible des ions. In the context of the invention, the term "electrochemically active material" means a material capable of reversibly inserting ions.
Dans le cadre de l’invention, on entend par « matériau conducteur électronique » un matériau capable conduire les électrons. In the context of the invention, the term "electronically conductive material" means a material capable of driving the electrons.
Selon un mode de réalisation, l’électrode négative de la cellule électrochimique comprend, comme matériau électrochimiquement actif, du graphite, du lithium, un alliage de lithium, un titanate de lithium de type LUTisO·^ ou T1O2, du silicium ou un alliage de lithium et silicium, un oxyde d’étain, un composé intermétallique de lithium, ou un de leurs mélanges. L’électrode négative peut comprendre du lithium, celui-ci peut alors être constitué d’un film de lithium métallique ou d’un alliage comprenant du lithium. Un exemple d’électrode négative peut comprendre un film de lithium vif préparé par laminage, entre des rouleaux, d’un feuillard de lithium. According to one embodiment, the negative electrode of the electrochemical cell comprises, as an electrochemically active material, graphite, lithium, a lithium alloy, a lithium titanate of LUTisO · 1 or TiO 2 type , silicon or an alloy of lithium and silicon, a tin oxide, a lithium intermetallic compound, or a mixture thereof. The negative electrode may comprise lithium, which may then consist of a metal lithium film or an alloy comprising lithium. An example of a negative electrode may comprise a bright lithium film prepared by rolling between rolls of a lithium strip.
Dans le cadre de l’invention, par électrode positive, on entend l’électrode qui fait office de cathode, quand la batterie débite du courant (c’est-à-dire lorsqu’elle est en processus de décharge) et qui fait office d’anode lorsque la batterie est en processus de charge. In the context of the invention, the term "positive electrode" means the electrode which acts as cathode, when the battery delivers current (that is to say when it is in the process of discharge) and which serves anode when the battery is charging.
L’électrode positive comprend typiquement un matériau électrochimiquement actif, éventuellement un matériau conducteur électronique, et éventuellement un liant. The positive electrode typically comprises an electrochemically active material, optionally an electronically conductive material, and optionally a binder.
Dans un autre mode de réalisation, l’électrode positive de la cellule électrochimique comprend un matériau électrochimiquement actif choisi parmi le dioxyde de manganèse (MnC>2), l’oxyde de fer, l’oxyde de cuivre, l’oxyde de nickel, les oxydes composites lithium- manganèse (par exemple LixMn204 ou LixMnC>2), les oxydes compositions lithium-nickel (par exemple LixNiC>2), les oxydes compositions lithium-cobalt (par exemple LixCoC>2), les oxydes composites lithium-nickel-cobalt (par exemple LiNii-yCoyC>2), les oxydes composites lithium- nickel-cobalt-manganèse (par exemple LiNixMnyCozC>2 avec x+y+z = 1 ), les oxydes composites lithium-nickel-cobalt-manganèse enrichis en lithium (par exemple Lii+x(NixMnyCoz)i-xC>2), les oxydes composites de lithium et de métal de transition, les oxydes composites de lithium-manganèse-nickel de structure spinelle (par exemple LixMn2-yNiyC>4), les oxydes de lithium-phosphore de structure olivine (par exemple LixFePC>4, LixFei-yMnyPC>4 ou LLC0PO4), le sulfate de fer, les oxydes de vanadium, et leurs mélanges. In another embodiment, the positive electrode of the electrochemical cell comprises an electrochemically active material selected from manganese dioxide (MnC> 2 ), iron oxide, copper oxide, nickel oxide, lithium-manganese composite oxides (for example Li x Mn 2 O 4 or Li x MnC 2), lithium-nickel compositions (for example Li x NiC 2) oxides, lithium cobalt compositions (for example Li x CoC 2) ), composite oxides of lithium-nickel-cobalt (e.g. LiNii- there CoyC> 2), lithium nickel composite oxides cobalt manganese (e.g., LiNi x Mn y Co z C> 2 with x + y + z = 1), lithium-nickel-cobalt-manganese composite oxides enriched in lithium (for example Lii + x (Ni x Mn and Coz) i- x C> 2), lithium and transition metal composite oxides, oxides lithium-manganese-nickel composites of spinel structure (for example Li x Mn 2-y Ni y C> 4 ), lithium-phosphorus oxides of olivine structure (for example Li FePc x> 4, Li x Mn Fei- PC y y> 4 or LLC0PO 4), iron sulfate, vanadium oxides, and mixtures thereof.
De préférence, l’électrode positive comprend un matériau électrochimiquement actif choisi parmi L1C0O2, LiFePCU (LFP), LiMnxCoyNizC>2 (NMC, avec x+y+z = 1 ), LiFePCUF, LiFeSCUF, LiNixiCoyiAlziC>2 (NCA, avec xi+yi+zi = 1 ) et leurs mélanges. Preferably, the positive electrode comprises an electrochemically active material selected from L1COO2, LiFePCU (LFP), LiMn x Co y Ni Z C> 2 (NMC, with x + y + z = 1), LiFePCUF, LiFeSCUF, LiNi xi Co yi Al zi C> 2 (NCA, with xi + yi + zi = 1) and mixtures thereof.
Le matériau de l’électrode positive peut aussi comprendre, outre le matériau électrochimiquement actif, un matériau conducteur électronique comme une source de carbone, incluant, par exemple, du noir de carbone, du carbone Ketjen®, du carbone Shawinigan, du graphite, du graphène, des nanotubes de carbone, des fibres de carbone (tels les fibres de carbone formées en phase gazeuse (VGCF), du carbone non-poudreux obtenu par carbonisation d’un précurseur organique, ou une combinaison de deux ou plus de ceux- ci. D’autres additifs peuvent aussi être présents dans le matériau de l’électrode positive, comme des sels de lithium ou des particules inorganiques de type céramique ou verre, ou encore d’autres matériaux actifs compatibles (par exemple, du soufre). Le matériau de l’électrode positive peut aussi comprendre un liant. Des exemples non- limitatifs de liants comprennent les liants polymères polyéthers linéaires, ramifiés et/ou réticulé (par exemple, des polymères basés sur le poly(oxyde d’éthylène) (PEO), ou le poly(oxyde de propylène) (PPO) ou d’un mélange des deux (ou un co-polymère EO/PO), et comprenant éventuellement des unités réticulables), des liants solubles dans l’eau (tels que SBR (caoutchouc styrène-butadiène), NBR (caoutchouc acrylonitrile-butadiène), HNBR (NBR hydrogéné), CHR (caoutchouc d’épichlorohydrine), ACM (caoutchouc d’acrylate)), ou des liants de type polymères fluorés (tels que PVDF (fluorure de polyvinylidène), PTFE (polytétrafluoroéthylène), et leurs combinaisons. Certains liants, comme ceux solubles dans l’eau, peuvent aussi comprendre un additif comme le CMC (carboxyméthylcellulose). The material of the positive electrode may also include, in addition to the electrochemically active material, an electronically conductive material such as a carbon source, including, for example, carbon black, Ketjen ® carbon, Shawinigan carbon, graphite, graphene, carbon nanotubes, carbon fibers (such as gas-phase carbon fibers (VGCF), non-powdery carbon obtained by carbonization of an organic precursor, or a combination of two or more thereof Other additives may also be present in the material of the positive electrode, such as lithium salts or inorganic particles of ceramic or glass type, or other compatible active materials (for example, sulfur). The material of the positive electrode may also comprise a binder. Non-limiting examples of binders include linear, branched and / or crosslinked polymeric polyether binders (e.g., polymers based on polyethylene oxide (PEO), or poly (propylene oxide) (PPO) or a mixture of both (or an EO / PO co-polymer), and optionally comprising crosslinkable units), water-soluble binders (such as SBR (styrene-butadiene rubber), NBR (acrylonitrile-butadiene rubber) ), HNBR (hydrogenated NBR), CHR (epichlorohydrin rubber), ACM (acrylate rubber)), or fluoropolymer-type binders (such as PVDF (polyvinylidene fluoride), PTFE (polytetrafluoroethylene), and combinations thereof Some binders, such as those soluble in water, may also include an additive such as CMC (carboxymethylcellulose).
Le mélange de sels selon l’invention permet avantageusement d’améliorer la durée de vie de la batterie. The salt mixture according to the invention advantageously makes it possible to improve the service life of the battery.
La présente invention concerne également l’utilisation d’au moins un sel de potassium B tel que défini ci-dessus, dans un mélange comprenant au moins 99% en poids d’au moins un sel de lithium A tel que défini ci-dessus (de préférence de 99% à 99,9999% en poids d’au moins un sel de lithium A), pour améliorer la durée de vie d’une batterie, en particulier une batterie Li-ion. The present invention also relates to the use of at least one potassium salt B as defined above, in a mixture comprising at least 99% by weight of at least one lithium salt A as defined above ( preferably from 99% to 99.9999% by weight of at least one lithium salt A), to improve the life of a battery, in particular a Li-ion battery.
Dans le cadre de l’invention, par « comprise entre x et y » ou « entre x et y », on entend un intervalle dans lequel les bornes x et y sont incluses. Par exemple, la gamme «comprise entre 1 % et 98% » ou « allant de 1 % à 98% » inclus notamment les valeurs 1 et 98%. In the context of the invention, "between x and y" or "between x and y" means an interval in which the terminals x and y are included. For example, the range "between 1% and 98%" or "ranging from 1% to 98%" includes in particular the values 1 and 98%.
Tous les modes de réalisation décrits ci-dessus peuvent être combinés les uns avec les autres. All the embodiments described above can be combined with each other.
Les exemples suivants illustrent l'invention sans toutefois la limiter. The following examples illustrate the invention without limiting it.
PARTIE EXPERIMENTALE EXPERIMENTAL PART
Exemple 1 : sel A = LÎPF6 Example 1: salt A = LIPF 6
Des tests de voltamétrie cycliques ont été réalisés. Pour cela des piles boutons CR2032 ont été fabriqués munies d’une feuille d’aluminium de diamètre 20 mm comme électrode de travail, d’une pastille de lithium métal de diamètre 8 mm comme électrode de référence et d’un séparateur en fibre de verre de diamètre 18 mm imbibé avec 12 gouttes (0,6 mL) d’une solution de sel de lithium LiPF6 à 1 mol/L additivée avec un sel de potassium KPFe dans un mélange de solvant composé de carbonate d’éthylène et de carbonate d’éthyle méthyle (CAS = 623- 53-0) dans un rapport 3/7 en volume. Ensuite un balayage en tension est réalisé aux bornes de la pile bouton et le courant généré est mesuré et enregistré. Le balayage en tension est réalisé à 4 V et à 4,2 V. Le tableau suivant montre les courants d’oxydation à différents voltages après deux balayages aller-retour en tension pour différentes quantités de sel de potassium ajoutées. Les deux balayages préalables permettent la formation des couches de passivation telle que la SEI et la passivation de l’aluminium. Cyclic voltammetry tests were performed. For this purpose CR2032 button cells were manufactured with a 20 mm diameter aluminum foil as working electrode, a 8 mm diameter lithium metal pellet as reference electrode and a fiberglass separator. 18 mm diameter impregnated with 12 drops (0.6 ml) of a solution of lithium salt LiPF 6 at 1 mol / L additive with a potassium salt KPFe in a mixture of solvent composed of ethylene carbonate and carbonate of ethyl methyl (CAS = 623-53-0) in a ratio of 3/7 by volume. Then a voltage sweep is performed at the terminals of the button cell and the current generated is measured and recorded. The voltage sweep is performed at 4V and 4.2V. The following table shows the oxidation currents at different voltages after two round trips in voltage for different amounts of potassium salt added. The two prior scans allow the formation of passivation layers such as SEI and passivation of aluminum.
Le courant d’oxydation observé peut traduire de nombreux phénomènes : corrosion de l’aluminium, dégradation de l’électrolyte et la formation de dendrites de lithium. Tous ces phénomènes sont responsables de la dégradation de la durée de vie des batteries Li-ion. Plus ce courant est faible plus la durée de vie de la batterie est améliorée. A 4 V et à 4,2 V, les résultats montrent que l’ajout de KPF6 au LiPF6 permet avantageusement de diminuer ce courant d’oxydation par rapport au LiPF6 seul, et donc d’améliorer la durée de vie des batteries Li-ion. The oxidation current observed can reflect many phenomena: aluminum corrosion, degradation of the electrolyte and the formation of lithium dendrites. All these phenomena are responsible for the degradation of the life of Li-ion batteries. The lower the current, the longer the life of the battery is improved. At 4 V and at 4.2 V, the results show that the addition of KPF 6 to LiPF 6 advantageously makes it possible to reduce this oxidation current with respect to LiPF 6 alone, and thus to improve the service life of the batteries. Li-ion.
Exemple 2 : sel A = LiFSI Example 2: salt A = LiFSI
Des tests de cyclages ont été réalisés. Pour cela des piles boutons CR2032 ont été fabriqués munies d’une cathode NMC1 11 , d’une pastille de lithium métal de diamètre 8 mm comme anode et d’un séparateur en fibre de verre de diamètre 18 mm imbibé avec 12 gouttes (0.6 mL) d’une solution de sel de lithium LiFSI à 1 mol/ additivée avec un sel de potassium KFSI dans un mélange de solvant composé de carbonate d’éthylène et de carbonate d’éthyle méthyle (CAS = 623-53-0) dans un rapport 3/7 en volume. Cette batterie subit alors deux cycles de formation à un régime de C/20 pour former les différentes couches de passivation. Après ces deux cycles de formation, la batterie est chargée à C/5 et déchargée C/2 à 25°C jusqu’à ce que la capacité atteigne 80% de la capacité initiale déterminée après les deux cycles de formation. Le tableau suivant montre le nombre de cycle atteint à 80% de la capacité pour différentes teneurs en KFSI (en mélange avec LiFSI): Cycling tests were carried out. For this purpose CR2032 button cells were manufactured equipped with a NMC1 11 cathode, a 8 mm diameter metal lithium pellet as anode and a 18 mm diameter fiberglass separator soaked with 12 drops (0.6 mL). ) a 1 mol LiFSI lithium salt solution / additive with a KFSI potassium salt in a solvent mixture composed of ethylene carbonate and methyl ethyl carbonate (CAS = 623-53-0) in a ratio 3/7 by volume. This battery then undergoes two training cycles at a C / 20 rate to form the different passivation layers. After these two training cycles, the battery is charged at C / 5 and discharged C / 2 at 25 ° C until the capacity reaches 80% of the initial capacity determined after the two training cycles. The following table shows the number of cycles reached at 80% capacity for different grades of KFSI (mixed with LiFSI):
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1850664A FR3077415B1 (en) | 2018-01-29 | 2018-01-29 | MIXTURE OF LITHIUM AND POTASSIUM SALTS, AND ITS USE IN A BATTERY |
PCT/FR2019/050196 WO2019145662A2 (en) | 2018-01-29 | 2019-01-29 | Mixture of potassium and lithium salts, and use thereof in a battery |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3747076A2 true EP3747076A2 (en) | 2020-12-09 |
Family
ID=62455631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19709545.8A Pending EP3747076A2 (en) | 2018-01-29 | 2019-01-29 | Mixture of potassium and lithium salts, and use thereof in a battery |
Country Status (9)
Country | Link |
---|---|
US (1) | US12249692B2 (en) |
EP (1) | EP3747076A2 (en) |
JP (1) | JP7355744B2 (en) |
KR (1) | KR102289777B1 (en) |
CN (1) | CN111316493B (en) |
FR (1) | FR3077415B1 (en) |
HU (1) | HU231537B1 (en) |
PL (1) | PL434847A1 (en) |
WO (1) | WO2019145662A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3059835B1 (en) * | 2016-12-02 | 2020-01-24 | Arkema France | IMPROVED ION CONDUCTIVITY OF IMIDAZOLATE LITHIUM SALT ELECTROLYTE |
CN112201855B (en) * | 2020-10-19 | 2022-04-01 | 宁德新能源科技有限公司 | Electrolyte solution, electrochemical device, and electronic device |
CN112448037A (en) * | 2020-11-30 | 2021-03-05 | 广州天赐高新材料股份有限公司 | Lithium supplementing composition, lithium supplementing electrolyte and lithium supplementing method for lithium secondary battery |
CN115196646A (en) * | 2022-08-23 | 2022-10-18 | 江苏瀚康电子材料有限公司 | Method for synthesizing lithium tetrafluoroborate |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2760568A1 (en) * | 1997-03-07 | 1998-09-11 | Hydro Quebec | POLYMER ELECTROLYTE GENERATORS HAVING POTASSIUM SALT FOR STABILIZING PERFORMANCE AND BATTERY LIFE |
USRE37805E1 (en) * | 1997-03-12 | 2002-07-23 | Hydro-Quebec | Polymer electrolyte lithium battery containing a potassium salt |
JP3309719B2 (en) * | 1996-07-10 | 2002-07-29 | 松下電器産業株式会社 | Non-aqueous electrolyte secondary battery |
US20150064574A1 (en) * | 2013-08-30 | 2015-03-05 | Hui He | Non-flammable quasi-solid electrolyte and non-lithium alkali metal or alkali-ion secondary batteries containing same |
FR3011683A1 (en) * | 2013-10-03 | 2015-04-10 | Arkema France | PENTACYCLIC ANION SALT: COMPOSITION FOR BATTERIES |
US20160268637A1 (en) * | 2014-03-05 | 2016-09-15 | Hitachi, Ltd. | Electrolyte solution for lithium ion secondary batteries and lithium ion secondary battery using same |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5691083A (en) | 1995-06-07 | 1997-11-25 | Eveready Battery Company, Inc. | Potassium ion additives for voltage control and performance improvement in nonaqueous cells |
WO2006101141A1 (en) * | 2005-03-23 | 2006-09-28 | Kyoto University | Molten salt composition and use thereof |
EP1950779B1 (en) | 2005-11-04 | 2017-07-26 | Stella Chemifa Corporation | Battery device |
CN101548425A (en) | 2006-12-06 | 2009-09-30 | 三菱化学株式会社 | Nonaqueous electrolyte solution and nonaqueous electrolyte secondary battery |
CN101241774B (en) * | 2007-02-09 | 2010-11-10 | 中国科学院物理研究所 | A compound electrolyte composition and its making method |
JP5273765B2 (en) * | 2007-09-14 | 2013-08-28 | 国立大学法人京都大学 | Molten salt composition and use thereof |
HUE055375T2 (en) | 2010-05-28 | 2021-11-29 | Nippon Catalytic Chem Ind | Alkali metal salt of fluorosulfonyl imide |
JP2014024786A (en) | 2012-07-26 | 2014-02-06 | Mitsubishi Materials Corp | Method of manufacturing perfluoroalkyl sulfonic acid metal salt and perfluoroalkyl sulfonic acid metal salt, and electrolyte for lithium ion battery and conductivity imparting agent for resin using the same |
-
2018
- 2018-01-29 FR FR1850664A patent/FR3077415B1/en active Active
-
2019
- 2019-01-29 JP JP2020540704A patent/JP7355744B2/en active Active
- 2019-01-29 CN CN201980004302.7A patent/CN111316493B/en active Active
- 2019-01-29 PL PL434847A patent/PL434847A1/en unknown
- 2019-01-29 EP EP19709545.8A patent/EP3747076A2/en active Pending
- 2019-01-29 WO PCT/FR2019/050196 patent/WO2019145662A2/en unknown
- 2019-01-29 KR KR1020207002975A patent/KR102289777B1/en active Active
- 2019-01-29 HU HUP2000261A patent/HU231537B1/en unknown
- 2019-01-29 US US16/637,929 patent/US12249692B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3309719B2 (en) * | 1996-07-10 | 2002-07-29 | 松下電器産業株式会社 | Non-aqueous electrolyte secondary battery |
FR2760568A1 (en) * | 1997-03-07 | 1998-09-11 | Hydro Quebec | POLYMER ELECTROLYTE GENERATORS HAVING POTASSIUM SALT FOR STABILIZING PERFORMANCE AND BATTERY LIFE |
USRE37805E1 (en) * | 1997-03-12 | 2002-07-23 | Hydro-Quebec | Polymer electrolyte lithium battery containing a potassium salt |
US20150064574A1 (en) * | 2013-08-30 | 2015-03-05 | Hui He | Non-flammable quasi-solid electrolyte and non-lithium alkali metal or alkali-ion secondary batteries containing same |
FR3011683A1 (en) * | 2013-10-03 | 2015-04-10 | Arkema France | PENTACYCLIC ANION SALT: COMPOSITION FOR BATTERIES |
US20160268637A1 (en) * | 2014-03-05 | 2016-09-15 | Hitachi, Ltd. | Electrolyte solution for lithium ion secondary batteries and lithium ion secondary battery using same |
Non-Patent Citations (1)
Title |
---|
See also references of WO2019145662A2 * |
Also Published As
Publication number | Publication date |
---|---|
HUP2000261A1 (en) | 2020-12-28 |
PL434847A1 (en) | 2021-05-17 |
FR3077415A1 (en) | 2019-08-02 |
US20200212488A1 (en) | 2020-07-02 |
WO2019145662A2 (en) | 2019-08-01 |
WO2019145662A3 (en) | 2019-10-31 |
JP2021511640A (en) | 2021-05-06 |
CN111316493B (en) | 2021-07-13 |
JP7355744B2 (en) | 2023-10-03 |
FR3077415B1 (en) | 2020-07-24 |
CN111316493A (en) | 2020-06-19 |
KR20200116897A (en) | 2020-10-13 |
US12249692B2 (en) | 2025-03-11 |
HU231537B1 (en) | 2024-09-28 |
KR102289777B1 (en) | 2021-08-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR3069959B1 (en) | MIXTURE OF LITHIUM SALTS AND USES THEREOF AS BATTERY ELECTROLYTE | |
EP2297812B1 (en) | Non-aqueous electrolyte for a high-voltage lithium battery | |
EP3607601B1 (en) | Lithium salt mixture and uses thereof as a battery electrolyte | |
EP3973587A1 (en) | Electrolyte composition containing a mixture of lithium salts | |
EP2721682B1 (en) | Liquid electrolyte for a lithium battery, comprising a quaternary mixture of non-aqueous organic solvents | |
WO2019145662A2 (en) | Mixture of potassium and lithium salts, and use thereof in a battery | |
WO2018163127A1 (en) | Electrolyte composition and use thereof in lithium-ion batteries | |
FR3118679A1 (en) | Ionic liquid based on bis(fluorosulfonyl)imide | |
EP4062475B1 (en) | Electrolyte based on a lithium salt | |
EP3549192B1 (en) | Improving the ion conductivity of an electrolyte based on lithium imidazolate salts | |
EP3714498B1 (en) | Use of a mixture of salts as additive in a gelified lithium battery | |
FR3098214A1 (en) | MIXTURE OF LITHIUM AND POTASSIUM SALTS, AND ITS USE IN A BATTERY | |
EP2721683B1 (en) | Liquid electrolyte for lithium accumulator, comprising a ternary mixture of non-aqueous organic solvents | |
FR3142293A1 (en) | Electrolyte with high local concentration in LiFSI | |
FR3063836A1 (en) | ELECTROLYTE COMPOSITION AND ITS USE IN LITHIUM-ION BATTERIES | |
CA2960489A1 (en) | Electrolyte composition and its use in lithium-ion batteries | |
WO2024241002A1 (en) | Electrolyte with high lifsi concentration | |
FR3095551A1 (en) | Electrolyte for an electrochemical accumulator comprising a particular ionic liquid |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20200618 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20210719 |