CN105826608A - Electrolyte and lithium ion battery containing electrolyte - Google Patents
Electrolyte and lithium ion battery containing electrolyte Download PDFInfo
- Publication number
- CN105826608A CN105826608A CN201610352295.8A CN201610352295A CN105826608A CN 105826608 A CN105826608 A CN 105826608A CN 201610352295 A CN201610352295 A CN 201610352295A CN 105826608 A CN105826608 A CN 105826608A
- Authority
- CN
- China
- Prior art keywords
- unsubstituted
- substituted
- electrolyte
- compound
- formula
- 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
- 239000003792 electrolyte Substances 0.000 title claims abstract description 83
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 37
- -1 ester compound Chemical class 0.000 claims abstract description 108
- 239000000539 dimer Substances 0.000 claims abstract description 52
- 150000001875 compounds Chemical class 0.000 claims abstract description 42
- 239000000654 additive Substances 0.000 claims abstract description 32
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 15
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003960 organic solvent Substances 0.000 claims abstract description 10
- 239000006259 organic additive Substances 0.000 claims abstract description 4
- 230000000996 additive effect Effects 0.000 claims description 34
- 229910052799 carbon Inorganic materials 0.000 claims description 31
- 229910052736 halogen Inorganic materials 0.000 claims description 29
- 150000002367 halogens Chemical class 0.000 claims description 29
- 125000001424 substituent group Chemical group 0.000 claims description 28
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 27
- 150000002148 esters Chemical class 0.000 claims description 24
- 229910052744 lithium Inorganic materials 0.000 claims description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 15
- 150000008053 sultones Chemical class 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 125000001118 alkylidene group Chemical group 0.000 claims description 13
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 11
- 150000007942 carboxylates Chemical class 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- BCGCCTGNWPKXJL-UHFFFAOYSA-N 3-(2-cyanoethoxy)propanenitrile Chemical compound N#CCCOCCC#N BCGCCTGNWPKXJL-UHFFFAOYSA-N 0.000 claims description 9
- BTGRAWJCKBQKAO-UHFFFAOYSA-N adiponitrile Chemical compound N#CCCCCC#N BTGRAWJCKBQKAO-UHFFFAOYSA-N 0.000 claims description 8
- 150000005215 alkyl ethers Chemical class 0.000 claims description 8
- RCRNVWKZQROUJM-UHFFFAOYSA-N 3-[4-(2-cyanoethoxy)butoxy]propanenitrile Chemical compound N#CCCOCCCCOCCC#N RCRNVWKZQROUJM-UHFFFAOYSA-N 0.000 claims description 7
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 claims description 6
- VMJNTFXCTXAXTC-UHFFFAOYSA-N 2,2-difluoro-1,3-benzodioxole-5-carbonitrile Chemical group C1=C(C#N)C=C2OC(F)(F)OC2=C1 VMJNTFXCTXAXTC-UHFFFAOYSA-N 0.000 claims description 6
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 claims description 6
- 239000011258 core-shell material Substances 0.000 claims description 6
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 claims description 6
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 6
- SDXXWOPNPDBSCH-UHFFFAOYSA-N C(#N)CCOCC(=S)OCCO Chemical compound C(#N)CCOCC(=S)OCCO SDXXWOPNPDBSCH-UHFFFAOYSA-N 0.000 claims description 5
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical class O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 5
- RFFFKMOABOFIDF-UHFFFAOYSA-N Pentanenitrile Chemical compound CCCCC#N RFFFKMOABOFIDF-UHFFFAOYSA-N 0.000 claims description 5
- 150000001336 alkenes Chemical class 0.000 claims description 5
- ZTOMUSMDRMJOTH-UHFFFAOYSA-N glutaronitrile Chemical compound N#CCCCC#N ZTOMUSMDRMJOTH-UHFFFAOYSA-N 0.000 claims description 5
- 239000007774 positive electrode material Substances 0.000 claims description 5
- IAHFWCOBPZCAEA-UHFFFAOYSA-N succinonitrile Chemical compound N#CCCC#N IAHFWCOBPZCAEA-UHFFFAOYSA-N 0.000 claims description 5
- PPHVNJZVJZMSRM-UHFFFAOYSA-N 3-[3-(2-cyanoethoxy)propoxy]propanenitrile Chemical compound N#CCCOCCCOCCC#N PPHVNJZVJZMSRM-UHFFFAOYSA-N 0.000 claims description 4
- AUGKLUNRHYPDAM-UHFFFAOYSA-N 3-methylbut-2-enenitrile Chemical compound CC(C)=CC#N AUGKLUNRHYPDAM-UHFFFAOYSA-N 0.000 claims description 4
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 claims description 4
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 claims description 3
- MAEZNNXTTYYDCS-UHFFFAOYSA-N C(#N)CCCCOCC(=S)OCCO Chemical compound C(#N)CCCCOCC(=S)OCCO MAEZNNXTTYYDCS-UHFFFAOYSA-N 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 3
- DOPNBWIPIUIHHJ-UHFFFAOYSA-N carbonic acid 1,2-difluoroethyne Chemical compound OC(O)=O.FC#CF DOPNBWIPIUIHHJ-UHFFFAOYSA-N 0.000 claims description 3
- ZNNZFUYGJVHLGX-UHFFFAOYSA-N carbonic acid;fluoroethyne Chemical compound FC#C.OC(O)=O ZNNZFUYGJVHLGX-UHFFFAOYSA-N 0.000 claims description 3
- VEWLDLAARDMXSB-UHFFFAOYSA-N ethenyl sulfate;hydron Chemical compound OS(=O)(=O)OC=C VEWLDLAARDMXSB-UHFFFAOYSA-N 0.000 claims description 3
- 229960004692 perflenapent Drugs 0.000 claims description 3
- NJCBUSHGCBERSK-UHFFFAOYSA-N perfluoropentane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F NJCBUSHGCBERSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000001294 propane Substances 0.000 claims description 3
- YPNMWIVQXFZROZ-UHFFFAOYSA-N 3-[5-(2-cyanoethoxy)pentoxy]propanenitrile Chemical compound N#CCCOCCCCCOCCC#N YPNMWIVQXFZROZ-UHFFFAOYSA-N 0.000 claims description 2
- SPMBYIKLZSGLBY-UHFFFAOYSA-N S1(=O)OCC(C)CC(C)O1.S(O)(O)(=O)=O Chemical compound S1(=O)OCC(C)CC(C)O1.S(O)(O)(=O)=O SPMBYIKLZSGLBY-UHFFFAOYSA-N 0.000 claims description 2
- 238000006471 dimerization reaction Methods 0.000 abstract 2
- 150000004651 carbonic acid esters Chemical class 0.000 abstract 1
- 150000001733 carboxylic acid esters Chemical class 0.000 abstract 1
- 150000002596 lactones Chemical class 0.000 abstract 1
- 230000007334 memory performance Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 30
- 238000003860 storage Methods 0.000 description 16
- 230000006872 improvement Effects 0.000 description 14
- 125000002769 thiazolinyl group Chemical group 0.000 description 13
- 125000000217 alkyl group Chemical group 0.000 description 11
- 238000012360 testing method Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 229910052731 fluorine Inorganic materials 0.000 description 8
- 239000011737 fluorine Substances 0.000 description 7
- 125000003118 aryl group Chemical group 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 125000004450 alkenylene group Chemical group 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000006230 acetylene black Substances 0.000 description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 description 4
- 125000000753 cycloalkyl group Chemical group 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 150000002466 imines Chemical class 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- FSSPGSAQUIYDCN-UHFFFAOYSA-N 1,3-Propane sultone Chemical compound O=S1(=O)CCCO1 FSSPGSAQUIYDCN-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 150000001718 carbodiimides Chemical class 0.000 description 3
- 238000007600 charging Methods 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 3
- 150000002825 nitriles Chemical class 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 238000010189 synthetic method Methods 0.000 description 3
- AIDLAEPHWROGFI-UHFFFAOYSA-N 2-methylbenzene-1,3-dicarboxylic acid Chemical compound CC1=C(C(O)=O)C=CC=C1C(O)=O AIDLAEPHWROGFI-UHFFFAOYSA-N 0.000 description 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- 229910032387 LiCoO2 Inorganic materials 0.000 description 2
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- JKJWYKGYGWOAHT-UHFFFAOYSA-N bis(prop-2-enyl) carbonate Chemical compound C=CCOC(=O)OCC=C JKJWYKGYGWOAHT-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000010277 constant-current charging Methods 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- UBPGILLNMDGSDS-UHFFFAOYSA-N diethylene glycol diacetate Chemical class CC(=O)OCCOCCOC(C)=O UBPGILLNMDGSDS-UHFFFAOYSA-N 0.000 description 2
- DGTVXEHQMSJRPE-UHFFFAOYSA-M difluorophosphinate Chemical compound [O-]P(F)(F)=O DGTVXEHQMSJRPE-UHFFFAOYSA-M 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- XHEDLZYGAQSNTR-UHFFFAOYSA-N ethene;hexanedioic acid Chemical compound C=C.C=C.OC(=O)CCCCC(O)=O XHEDLZYGAQSNTR-UHFFFAOYSA-N 0.000 description 2
- OBNCKNCVKJNDBV-UHFFFAOYSA-N ethyl butyrate Chemical compound CCCC(=O)OCC OBNCKNCVKJNDBV-UHFFFAOYSA-N 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N hexane Substances CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 2
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 2
- QSZMZKBZAYQGRS-UHFFFAOYSA-N lithium;bis(trifluoromethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)F QSZMZKBZAYQGRS-UHFFFAOYSA-N 0.000 description 2
- IHLVCKWPAMTVTG-UHFFFAOYSA-N lithium;carbanide Chemical compound [Li+].[CH3-] IHLVCKWPAMTVTG-UHFFFAOYSA-N 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 239000011356 non-aqueous organic solvent Substances 0.000 description 2
- 238000000643 oven drying Methods 0.000 description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 2
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- LEIMLDGFXIOXMT-UHFFFAOYSA-N trimethylsilyl cyanide Chemical compound C[Si](C)(C)C#N LEIMLDGFXIOXMT-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ANLVEXKNRYNLDH-UHFFFAOYSA-N 1,3-dioxonan-2-one Chemical compound O=C1OCCCCCCO1 ANLVEXKNRYNLDH-UHFFFAOYSA-N 0.000 description 1
- KAESVJOAVNADME-UHFFFAOYSA-N 1H-pyrrole Natural products C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 1
- SFFUEHODRAXXIA-UHFFFAOYSA-N 2,2,2-trifluoroacetonitrile Chemical compound FC(F)(F)C#N SFFUEHODRAXXIA-UHFFFAOYSA-N 0.000 description 1
- CXWROMFWHBIOBS-UHFFFAOYSA-N 2,2,3-trifluoropropanenitrile Chemical compound FCC(F)(F)C#N CXWROMFWHBIOBS-UHFFFAOYSA-N 0.000 description 1
- RYWQXEUNSACTBO-UHFFFAOYSA-N 2,2-difluoropropanenitrile Chemical compound CC(F)(F)C#N RYWQXEUNSACTBO-UHFFFAOYSA-N 0.000 description 1
- YPPILGHPUZCHOC-UHFFFAOYSA-N 2,3-difluoropropanenitrile Chemical compound FCC(F)C#N YPPILGHPUZCHOC-UHFFFAOYSA-N 0.000 description 1
- UHOPWFKONJYLCF-UHFFFAOYSA-N 2-(2-sulfanylethyl)isoindole-1,3-dione Chemical compound C1=CC=C2C(=O)N(CCS)C(=O)C2=C1 UHOPWFKONJYLCF-UHFFFAOYSA-N 0.000 description 1
- IHXNSHZBFXGOJM-UHFFFAOYSA-N 2-methylbut-2-enenitrile Chemical compound CC=C(C)C#N IHXNSHZBFXGOJM-UHFFFAOYSA-N 0.000 description 1
- WEOKHGKSYLOTPP-UHFFFAOYSA-N 2-methylbutanedinitrile Chemical compound N#CC(C)CC#N WEOKHGKSYLOTPP-UHFFFAOYSA-N 0.000 description 1
- RCEJCSULJQNRQQ-UHFFFAOYSA-N 2-methylbutanenitrile Chemical compound CCC(C)C#N RCEJCSULJQNRQQ-UHFFFAOYSA-N 0.000 description 1
- 125000003229 2-methylhexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- NGCJVMZXRCLPRQ-UHFFFAOYSA-N 2-methylidenepentanedinitrile Chemical compound N#CC(=C)CCC#N NGCJVMZXRCLPRQ-UHFFFAOYSA-N 0.000 description 1
- 125000005916 2-methylpentyl group Chemical group 0.000 description 1
- ILPBINAXDRFYPL-UHFFFAOYSA-N 2-octene Chemical compound CCCCCC=CC ILPBINAXDRFYPL-UHFFFAOYSA-N 0.000 description 1
- WDGHUZCUXKJUJQ-UHFFFAOYSA-N 3,3,3-trifluoropropanenitrile Chemical compound FC(F)(F)CC#N WDGHUZCUXKJUJQ-UHFFFAOYSA-N 0.000 description 1
- HENWDOAXHRRZFZ-UHFFFAOYSA-N 3,3-difluoropropanenitrile Chemical compound FC(F)CC#N HENWDOAXHRRZFZ-UHFFFAOYSA-N 0.000 description 1
- DVFGEIYOLIFSRX-UHFFFAOYSA-N 3-(2-ethylhexoxy)propan-1-amine Chemical compound CCCCC(CC)COCCCN DVFGEIYOLIFSRX-UHFFFAOYSA-N 0.000 description 1
- 125000003469 3-methylhexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000005917 3-methylpentyl group Chemical group 0.000 description 1
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 1
- SJHAYVFVKRXMKG-UHFFFAOYSA-N 4-methyl-1,3,2-dioxathiolane 2-oxide Chemical compound CC1COS(=O)O1 SJHAYVFVKRXMKG-UHFFFAOYSA-N 0.000 description 1
- 125000000590 4-methylphenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229910001148 Al-Li alloy Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- COVZYZSDYWQREU-UHFFFAOYSA-N Busulfan Chemical compound CS(=O)(=O)OCCCCOS(C)(=O)=O COVZYZSDYWQREU-UHFFFAOYSA-N 0.000 description 1
- GNWLESJJKKIBJD-UHFFFAOYSA-N C(CC)#N.[F] Chemical compound C(CC)#N.[F] GNWLESJJKKIBJD-UHFFFAOYSA-N 0.000 description 1
- ABAWGYAPDAVMRD-UHFFFAOYSA-N C(CC)=C(CC(C)=C1C(C(=O)O)(C=CC=C1C(=O)O)C)C Chemical compound C(CC)=C(CC(C)=C1C(C(=O)O)(C=CC=C1C(=O)O)C)C ABAWGYAPDAVMRD-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- JGFBQFKZKSSODQ-UHFFFAOYSA-N Isothiocyanatocyclopropane Chemical compound S=C=NC1CC1 JGFBQFKZKSSODQ-UHFFFAOYSA-N 0.000 description 1
- 229910008365 Li-Sn Inorganic materials 0.000 description 1
- 229910008410 Li-Sn-O Inorganic materials 0.000 description 1
- 229910002986 Li4Ti5O12 Inorganic materials 0.000 description 1
- 229910013098 LiBF2 Inorganic materials 0.000 description 1
- 229910013188 LiBOB Inorganic materials 0.000 description 1
- 229910012820 LiCoO Inorganic materials 0.000 description 1
- 229910010941 LiFSI Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 229910006759 Li—Sn Inorganic materials 0.000 description 1
- 229910006763 Li—Sn—O Inorganic materials 0.000 description 1
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 description 1
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910006095 SO2F Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-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
- ZIYVAZASIRJRHP-UHFFFAOYSA-N acetonitrile;hydron;fluoride Chemical compound F.CC#N ZIYVAZASIRJRHP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000000304 alkynyl group Chemical group 0.000 description 1
- IHUNBGSDBOWDMA-AQFIFDHZSA-N all-trans-acitretin Chemical compound COC1=CC(C)=C(\C=C\C(\C)=C\C=C\C(\C)=C\C(O)=O)C(C)=C1C IHUNBGSDBOWDMA-AQFIFDHZSA-N 0.000 description 1
- IYABWNGZIDDRAK-UHFFFAOYSA-N allene Chemical group C=C=C IYABWNGZIDDRAK-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 229960002645 boric acid Drugs 0.000 description 1
- 235000010338 boric acid Nutrition 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- PWLNAUNEAKQYLH-UHFFFAOYSA-N butyric acid octyl ester Natural products CCCCCCCCOC(=O)CCC PWLNAUNEAKQYLH-UHFFFAOYSA-N 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Chemical group 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 150000005676 cyclic carbonates Chemical class 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000001162 cycloheptenyl group Chemical group C1(=CCCCCC1)* 0.000 description 1
- VBWIZSYFQSOUFQ-UHFFFAOYSA-N cyclohexanecarbonitrile Chemical compound N#CC1CCCCC1 VBWIZSYFQSOUFQ-UHFFFAOYSA-N 0.000 description 1
- 125000000596 cyclohexenyl group Chemical group C1(=CCCCC1)* 0.000 description 1
- FNIATMYXUPOJRW-UHFFFAOYSA-N cyclohexylidene Chemical group [C]1CCCCC1 FNIATMYXUPOJRW-UHFFFAOYSA-N 0.000 description 1
- URYYVOIYTNXXBN-UPHRSURJSA-N cyclooctene Chemical compound C1CCC\C=C/CC1 URYYVOIYTNXXBN-UPHRSURJSA-N 0.000 description 1
- 239000004913 cyclooctene Substances 0.000 description 1
- 125000004978 cyclooctylene group Chemical group 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 125000002541 furyl group Chemical group 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- CSAZMTWHVNCILA-UHFFFAOYSA-N hex-2-enenitrile Chemical compound CCCC=CC#N CSAZMTWHVNCILA-UHFFFAOYSA-N 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- LRDFRRGEGBBSRN-UHFFFAOYSA-N isobutyronitrile Chemical compound CC(C)C#N LRDFRRGEGBBSRN-UHFFFAOYSA-N 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910003473 lithium bis(trifluoromethanesulfonyl)imide Inorganic materials 0.000 description 1
- DEUISMFZZMAAOJ-UHFFFAOYSA-N lithium dihydrogen borate oxalic acid Chemical compound B([O-])(O)O.C(C(=O)O)(=O)O.C(C(=O)O)(=O)O.[Li+] DEUISMFZZMAAOJ-UHFFFAOYSA-N 0.000 description 1
- 229910001540 lithium hexafluoroarsenate(V) Inorganic materials 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- VDVLPSWVDYJFRW-UHFFFAOYSA-N lithium;bis(fluorosulfonyl)azanide Chemical compound [Li+].FS(=O)(=O)[N-]S(F)(=O)=O VDVLPSWVDYJFRW-UHFFFAOYSA-N 0.000 description 1
- 239000002931 mesocarbon microbead Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- UUIQMZJEGPQKFD-UHFFFAOYSA-N n-butyric acid methyl ester Natural products CCCC(=O)OC UUIQMZJEGPQKFD-UHFFFAOYSA-N 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000003261 o-tolyl group Chemical group [H]C1=C([H])C(*)=C(C([H])=C1[H])C([H])([H])[H] 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- YYSONLHJONEUMT-UHFFFAOYSA-N pentan-3-yl hydrogen carbonate Chemical compound CCC(CC)OC(O)=O YYSONLHJONEUMT-UHFFFAOYSA-N 0.000 description 1
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 1
- JAMNHZBIQDNHMM-UHFFFAOYSA-N pivalonitrile Chemical compound CC(C)(C)C#N JAMNHZBIQDNHMM-UHFFFAOYSA-N 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- BKIWAQYWKUFSRE-UHFFFAOYSA-N prop-1-ene;sulfuric acid Chemical group CC=C.OS(O)(=O)=O BKIWAQYWKUFSRE-UHFFFAOYSA-N 0.000 description 1
- 125000006410 propenylene group Chemical group 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000002098 pyridazinyl group Chemical group 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 125000005493 quinolyl group Chemical group 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- NLDYACGHTUPAQU-UHFFFAOYSA-N tetracyanoethylene Chemical compound N#CC(C#N)=C(C#N)C#N NLDYACGHTUPAQU-UHFFFAOYSA-N 0.000 description 1
- ZVQXQPNJHRNGID-UHFFFAOYSA-N tetramethylsuccinonitrile Chemical compound N#CC(C)(C)C(C)(C)C#N ZVQXQPNJHRNGID-UHFFFAOYSA-N 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to the technical field of lithium ion batteries, in particular to an electrolyte and a lithium ion battery containing the electrolyte .The electrolyte comprises lithium salt, organic solvent and additives, wherein the additives include a dimerization ester compound and a dinitrile compound containing an ether bond, and the dimerization ester compound includes carbonic acid ester dimer, carboxylic acid ester dimer and sulfonated lactone dimer .The electrolyte can improve the cycle performance, rate capability and high-temperature memory performance of the lithium ion battery on high voltage.
Description
Technical field
The application relates to technical field of lithium ion, specifically, relates to a kind of electrolyte and includes the lithium ion battery of this electrolyte.
Background technology
In recent years, fast development along with electronic product, the flying power of lithium ion battery is had higher requirement, wherein the principal element of decision lithium ion battery flying power is battery capacity, correspondingly, people it is also proposed higher requirement to the energy density of lithium ion battery, and in order to improve the energy density of lithium ion battery, exploitation high-voltage lithium ion batteries is one of effective method.However as the raising of voltage, the moisture in electrolyte and the reaction of other composition in electrolyte can be accelerated, also can produce Fluohydric acid. (HF), the performance such as circulation of lithium ion battery can be reduced, had a strong impact on performance of lithium ion battery.The performance promoting lithium ion battery by optimizing electrolyte is counted as one of maximally effective approach.
Although linear carbonate dimer, chain carboxylate dimer, chain sulphonic acid ester dimer or phosphate ester can improve high-temperature storage performance, initial charge/discharge performance, safety, cycle characteristics etc..Excessive yet with its viscosity, cause and pole piece and barrier film are infiltrated difficulty, particularly under high compacted density, battery core performance is caused adverse influence.
In consideration of it, special, the application is proposed.
Summary of the invention
The primary goal of the invention of the application is to propose a kind of electrolyte.
Second goal of the invention of the application is to propose a kind of lithium ion battery containing this electrolyte.
In order to complete present invention purpose, the technical scheme of employing is:
The application relates to a kind of electrolyte, including lithium salts, organic solvent and additive, containing additive A and additive B in described additive, at least one in dimer ester compounds of described additive A, described dimer ester compounds includes carbonic ester dimer, carboxylate dimer and sultone dimer；At least one in the dinitrile compound with ehter bond of described additive B.
Preferably, the structural formula of described carbonic ester dimer is as shown in formula I:
In formula I, R11、R13The most independent is respectively selected from substituted or unsubstituted C1～12Alkyl, substituted or unsubstituted C2～12Thiazolinyl, substituted or unsubstituted C2～12Alkynyl, substituted or unsubstituted C6～26Aryl, substituted or unsubstituted C5～22Heterocyclic base；Substituent group is selected from halogen, C6～26Aryl, C3～8Cycloalkyl；
R12Selected from substituted or unsubstituted C1～12Alkylidene, substituted or unsubstituted C6～26Arlydene, by least one ehter bond and at least one substituted or unsubstituted C1～12The group of alkylidene composition, substituent group is selected from halogen；
Preferably, described carboxylate dimer structure formula is as shown in formula II:
In formula II, R21、R23The most independent is respectively selected from substituted or unsubstituted C1～12Alkyl, substituted or unsubstituted C2～12Thiazolinyl, substituted or unsubstituted C2～12Alkynyl, substituted or unsubstituted C6～26Aryl, substituted or unsubstituted C5～22Heterocyclic base；Substituent group is selected from halogen, C6～26Aryl, C3～8Cycloalkyl；
R22Selected from substituted or unsubstituted C1～12Alkylidene, substituted or unsubstituted C6～26Arlydene, by least one ehter bond and at least one substituted or unsubstituted C1～12The group of alkylidene composition, substituent group is selected from halogen.
Preferably, described sultone dimer structure formula is as shown in formula III:
In formula III, R31、R33The most independent is respectively selected from substituted or unsubstituted C1～12Alkyl, substituted or unsubstituted C2～12Thiazolinyl, substituted or unsubstituted C2～12Alkynyl, substituted or unsubstituted C6～26Aryl, substituted or unsubstituted C5～22Heterocyclic base；Substituent group is selected from halogen, C6～26Aryl, C3～8Cycloalkyl；
R32Selected from substituted or unsubstituted C1～12Alkylidene, substituted or unsubstituted C6～26Arlydene, by least one ehter bond and at least one substituted or unsubstituted C1～12The group of alkylidene composition, substituent group is selected from halogen.
Preferably, there is the structural formula of dinitrile compound of ehter bond described in as shown in formula IV:
R41、R42、R43The most independent is respectively selected from C1～5Alkylidene, C2～5Alkenylene, m is the integer of 1～5.
Preferably, described have the dinitrile compound of ehter bond selected from 3,5-dioxa-pimelic dinitrile, 1,4-bis-(2-cyanoethoxy) butane, ethylene glycol bisthioglycolate (2-cyano ethyl) ether, diethylene glycol two (2-cyano ethyl) ether, triethylene glycol two (2-cyano ethyl) ether, TEG two (2-cyano ethyl) ether, 1,3-bis-(2-cyanoethoxy) propane, 1,4-bis-(2-cyanoethoxy) butane, 1, at least one in 5-bis-(2-cyanoethoxy) pentane, ethylene glycol bisthioglycolate (4-cyanobutyl) ether:
Preferably, the total content of described additive A and additive B be electrolyte gross weight 0.01%～10%.
Preferably, described additive also includes addition of C, at least one in ether compound, nitrile compound, cyclic ester compounds containing sulfur-to-oxygen double bond, cyclic carbonate compound, compound containing carbon-to-nitrogen double bond of described addition of C；
At least one in substituted or unsubstituted alkyl ether of described ether compound, substituent group is halogen；
Described nitrile compound is selected from the alkane containing 1～5 cyano group, the alkene containing 1～5 cyano group at least one；
At least one in cyclic sulfates, cyclic sulfite, sultone of the described cyclic ester compounds containing sulfur-to-oxygen double bond；
The described compound containing carbon-to-nitrogen double bond is for selected from containingAt least one in the compound of-N=C=N-.
Preferably, described ether compound is selected from substituted or unsubstituted C1～12At least one in alkyl ether, substituent group is halogen；
Described nitrile compound is selected from the C containing 1～4 cyano group2～12Alkane, C containing 1～4 cyano group2～12In alkene at least one；
At least one in the compound shown in formula V 1, formula V 2, formula V 3 of the described cyclic ester compounds containing sulfur-to-oxygen double bond: as described at least one in compound as shown in formula V 4 of cyclic carbonate compound:
R51、R52、R53、R54The most independent is respectively selected from substituted or unsubstituted C1～4Alkylidene, substituted or unsubstituted C2～4Alkenylene；Substituent group is selected from halogen, C2～4Thiazolinyl.
Preferably, addition of C is selected from 1-ethyoxyl-propane, 2-trifluoromethyl-3-methoxyl group perflenapent, 1, 1, 2, 2-tetra-fluoro ethyl-2', 2', 3', 3'-tetrafluoro propyl ether, acetonitrile, propionitrile, butyronitrile, valeronitrile, butene nitrile, 3-methyl butene nitrile, Cyanoacetyl-Cyacetazid, succinonitrile, glutaronitrile, adiponitrile, rich horse dintrile, sulfuric acid vinyl ester, sulphuric acid propylene, propylene sulfite, 1, 3-N-morpholinopropanesulfonic acid lactone, 1, 4-butyl sultone, acrylic-1, 3-sultones, vinylene carbonate, fluorinated ethylene carbonate, fluoro vinylene carbonate, 1, 2-bis-fluoro vinylene carbonate, vinylethylene carbonate, at least one in dicyclohexylcarbodiimide；
It is furthermore preferred that the 0.01%～10% of the gross weight that the content of described addition of C is electrolyte.
The application further relates to a kind of lithium ion battery, including the positive plate containing positive electrode active materials, the electrolyte of negative plate, lithium battery diaphragm and the application containing negative active core-shell material.
The technical scheme of the application at least can have the advantages that
The electrolyte that the application provides includes ester dimer and has the dintrile of ehter bond, lithium ion battery cycle performance, high rate performance and high-temperature storage performance under high voltages can be improved, such as, improve lithium ion battery cycle performance and high rate performance and the storage performance at the high voltage of 4.4V～5V and 85 DEG C under the high voltage of 4.4V～5V.Additionally, also improve the security performance of lithium ion battery, such as, improve the thermal stability of lithium ion battery, at a temperature of 150 DEG C, the Heat stability is good of lithium ion battery, substantially without occurring smoldering, the on fire and phenomenon of blast.
Below in conjunction with specific embodiment, the application is expanded on further.Should be understood that these embodiments are merely to illustrate the application rather than limit scope of the present application.
Detailed description of the invention
The purpose of the application is to provide a kind of electrolyte, including lithium salts, organic solvent and additive, containing additive A and additive B in additive, at least one in dimer ester compounds of additive A, dimer ester compounds includes carbonic ester dimer, carboxylate dimer and sultone dimer；At least one in the dinitrile compound with ehter bond of additive B.
As a kind of improvement of the application electrolyte, carbonic ester dimer structure formula is as shown in formula I:
In formula I, R11、R13The most independent is respectively selected from substituted or unsubstituted C1～12Alkyl, substituted or unsubstituted C2～12Thiazolinyl, substituted or unsubstituted C2～12Alkynyl, substituted or unsubstituted C6～26Aryl, substituted or unsubstituted C5～22Heterocyclic base；Substituent group is selected from halogen, C6～26Aryl, C3～8Cycloalkyl；
R12Selected from substituted or unsubstituted C1～12Alkylidene, substituted or unsubstituted C6～26Arlydene, by least one ehter bond and at least one substituted or unsubstituted C1～12The group of alkylidene composition, substituent group is selected from halogen.
As a kind of improvement of the application electrolyte, R11、R13The most independent is respectively selected from C1～6Alkyl, R12Selected from C1～6Alkylidene.
As a kind of improvement of the application electrolyte, the certain embodiments of carbonic ester dimer is as follows:
As a kind of improvement of the application electrolyte, carboxylate dimer structure formula is as shown in formula II:
In formula II, R21、R23The most independent is respectively selected from substituted or unsubstituted C1～12Alkyl, substituted or unsubstituted C2～12Thiazolinyl, substituted or unsubstituted C2～12Alkynyl, substituted or unsubstituted C6～26Aryl, substituted or unsubstituted C5～22Heterocyclic base；Substituent group is selected from halogen, C6～26Aryl, C3～8Cycloalkyl；
R22Selected from substituted or unsubstituted C1～12Alkylidene, substituted or unsubstituted C6～26Arlydene, by least one ehter bond and at least one substituted or unsubstituted C1～12The group of alkylidene composition, substituent group is selected from halogen.
As a kind of improvement of the application electrolyte, R21、R23The most independent is respectively selected from C1～6Alkyl, R22Selected from C1～12Alkylidene, ehter bond and two C1～6Alkylidene connects the divalent group obtained.
As a kind of improvement of the application electrolyte, the certain embodiments of carboxylate dimer is as follows:
As a kind of improvement of the application electrolyte, sultone dimer structure formula is as shown in formula III:
In formula III, R31、R33The most independent is respectively selected from substituted or unsubstituted C1～12Alkyl, substituted or unsubstituted C2～12Thiazolinyl, substituted or unsubstituted C2～12Alkynyl, substituted or unsubstituted C6～26Aryl, substituted or unsubstituted C5～22Heterocyclic base；Substituent group is selected from halogen, C6～26Aryl, C3～8Cycloalkyl；
R32Selected from substituted or unsubstituted C1～12Alkylidene, substituted or unsubstituted C6～26Arlydene, by least one ehter bond and at least one substituted or unsubstituted C1～12The group of alkylidene composition, substituent group is selected from halogen.
As a kind of improvement of the application electrolyte, R31、R33The most independent is respectively selected from C1～6Alkyl, R32Selected from C1～6Alkylidene.
As a kind of improvement of the application electrolyte, the certain embodiments of sultone dimer is as follows:
As a kind of improvement of the application electrolyte, there is the structural formula of dinitrile compound of ehter bond as shown in formula IV:
Wherein, R41、R42、R43The most independent is respectively selected from C1～5Alkylidene, C2～5Alkenylene, m is the integer of 1～5.
As a kind of improvement of the application electrolyte, R41、R42、R43The most independent is respectively selected from C1～5Alkylidene, m is 1 or 2.
In the structure above of the application:
Carbon number is the alkyl of 1～12, and alkyl can be chain-like alkyl, it is possible to for cycloalkyl, the ring hydrogen being positioned at cycloalkyl can be replaced by alkyl.And the alkyl of preferred straight or branched.In described alkyl, the preferred lower limit of carbon number is 2,3,4,5, and preferred higher limit is 3,4,5,6,8,10,11.Preferably, the alkyl selecting carbon number to be 1～10, further preferably, the chain-like alkyl selecting carbon number to be 1～6, carbon number is the cycloalkyl of 3～8, still more preferably, the chain-like alkyl selecting carbon number to be 1～4, carbon number is the cycloalkyl of 5～7.Example as alkyl, specifically can enumerate: methyl, ethyl, n-pro-pyl, isopropyl, normal-butyl, isobutyl group, sec-butyl, the tert-butyl group, n-pentyl, isopentyl, neopentyl, hexyl, 2-Methyl pentyl, 3-Methyl pentyl, 1,1,2-trimethyl-propyl, 3,3 ,-dimethyl-butyl, heptyl, 2-heptyl, 3-heptyl, 2-methylhexyl, 3-methylhexyl, different heptyl, octyl group, nonyl, decyl.
Carbon number be the thiazolinyl of 2～12 can be cyclic alkenyl radical, it is possible to for chain thiazolinyl.And the thiazolinyl of preferred straight or branched.It addition, the number of double bond is preferably 1 in thiazolinyl.In described thiazolinyl, the preferred lower limit of carbon number is 3,4,5, preferred higher limit 6,8,10,11.Preferably, the thiazolinyl selecting carbon number to be 2～10, it is further preferred that the thiazolinyl selecting carbon number to be 2～6, it is further preferred that the thiazolinyl selecting carbon number to be 2～5.As the example of thiazolinyl, specifically can enumerate: vinyl, pi-allyl, isopropenyl, pentenyl, cyclohexenyl group, cycloheptenyl, cyclo-octene base.Specifically chosen identical with thiazolinyl to alkynyl.
Carbon number be the alkylidene of 1～12 be straight or branched alkylidene, the preferred lower limit of the carbon number of alkylidene can be 1,2,3,4, preferred higher limit can be 6,7,8,9,10,11.As the example of alkylidene, specifically can enumerate: methylene, ethylene, 1,3-propylidene, 2-methyl isophthalic acid, 3-propylidene, 1,3-dimethylpropylidene, 1-methyl isophthalic acid, 2-ethylidene, 1,1-dimethylethylene, 1,2-dimethylethylene, tetramethylene, 1,5-pentylidene, 1,6-hexylidene, 1, Isosorbide-5-Nitrae, 4-tetramethyl butylidene, cyclopropylidene, 1,2-cyclopropylidene, 1,3-Asia cyclobutyl, sub-cyclobutyl, cyclohexylidene, Isosorbide-5-Nitrae-cyclohexylidene, 1,4-cycloheptylidene, cycloheptylidene, 1,5-cyclooctylene, cyclooctylene.
Carbon number be the alkenylene of 2～12 be straight or branched alkenylene, the number of the double bond in thiazolinyl and the position of double bond are not particularly limited, can according to practical situation select desired structure thiazolinyl.Particularly, the number of double bond can be 1,2,3 or 4.In described alkenylene, the preferred lower limit of the carbon number of alkenylene can be 2,3,4,5, and preferred higher limit can be 6,8,10,11.Example as alkenylene, specifically can enumerate: 1,2-ethenylidene, ethenylidene, propenylene, 2-allylidene, methyl isophthalic acid, 2-ethenylidene, ethyl-1,2-ethenylidene, 1,4-butenylidene, 1, the sub-amyl-2-thiazolinyl of 5-, 1,6-Asia hex-3-thiazolinyl, 1,7-Asia hept-3-thiazolinyl, 1,8-Asia oct-2-ene base.
Carbon number is the aryl of 6～26, such as phenyl, benzene alkyl, at least contains the aryl such as xenyl of a phenyl, condensed-nuclei aromatics base such as naphthalene, anthracene, phenanthrene, and xenyl and condensed-nuclei aromatics base also can be replaced by alkyl or thiazolinyl.Preferably, the aryl selecting carbon number to be 6～16, it is further preferred that the aryl selecting carbon number to be 6～14, it is further preferred that the aryl selecting carbon number to be 6～9.As the example of aryl, specifically can enumerate: phenyl, benzyl, xenyl, p-methylphenyl, o-tolyl, a tolyl.
Carbon number is the heterocyclic base of 5～22, is selected from: furyl, thienyl, pyrrole radicals, thiazolyl, imidazole radicals, pyridine radicals, pyrazinyl, pyrimidine radicals, pyridazinyl, indyl, quinolyl etc..
Halogen is selected from fluorine, chlorine, bromine；And preferably fluorine, chlorine.
A kind of improvement as the application electrolyte, the dinitrile compound with ehter bond is at least one in following substances: 3, 5-dioxa-pimelic dinitrile (referred to as AM1), 1, 4-bis-(2-cyanoethoxy) butane (referred to as AM2), ethylene glycol bisthioglycolate (2-cyano ethyl) ether (referred to as AM3), diethylene glycol two (2-cyano ethyl) ether, triethylene glycol two (2-cyano ethyl) ether, TEG two (2-cyano ethyl) ether, 1, 3-bis-(2-cyanoethoxy) propane (AM4), 1, 4-bis-(2-cyanoethoxy) butane, 1, 5-bis-(2-cyanoethoxy) pentane and ethylene glycol bisthioglycolate (4-cyanobutyl) ether.
Preferably, the dinitrile compound with ehter bond is ethylene glycol bisthioglycolate (2-cyano ethyl) ether.
Wherein, the structural formula of the certain embodiments with the dinitrile compound of ehter bond is as follows:
3,5-dioxa-pimelic dinitrile (referred to as AM1)；
1,4-bis-(2-cyanoethoxy) butane (referred to as AM2)；
Ethylene glycol bisthioglycolate (2-cyano ethyl) ether (referred to as AM3)；
1,3-bis-(2-cyanoethoxy) propane (referred to as AM4).
In this application, ester dimer can obtain according to conventional synthetic method, see, for example, CN101359750B, and certain described ester dimer can also be by commercially available；The dinitrile compound with ehter bond can be obtained by existing synthetic method, can be found in CN201280006888.9, it is also possible to by commercially available, and its source is not exposed to concrete restriction.
As the gross weight that total content is electrolyte of a kind of improvement of the application electrolyte, ester dimer and the dintrile with ehter bond 0.01%～10%.It has been investigated that, when both total contents are less than 0.01%, electrolyte is not effectively form stable passivating film, and the high-temperature storage performance of lithium ion battery and high rate performance can not get improving substantially；When total content is more than 10%, the film formed is thicker, and impedance increases, and can reduce the cycle performance of lithium ion battery.It is further preferred that described ester dimer and 1～5% of the gross weight that dintrile total content is electrolyte with ehter bond.Furthermore, it is necessary to explanation, ester dimer is unrestricted with the content ratio of the dintrile with ehter bond.
In order to improve further the high-temperature storage performance of lithium ion battery and high rate performance and security performance, it is preferable that the weight ratio of described ester dimer and the dintrile with ehter bond is ester dimer: have dintrile=1:3～3:1 of ehter bond.
In above-mentioned electrolyte, it is preferable that described additive also includes addition of C, at least one in ether compound, nitrile compound, cyclic ester compounds containing sulfur-to-oxygen double bond, cyclic carbonate compound, compound containing carbon-to-nitrogen double bond of addition of C.
As a kind of improvement of the application electrolyte, the content of addition of C is the 0.01%～10% of the gross weight of electrolyte.
In above-mentioned addition of C, at least one in substituted or unsubstituted alkyl ether of ether compound, substituent group is halogen；And further preferred substituted or unsubstituted C1～12At least one in alkyl ether；
Alkyl ether can be cyclic ether compound, it is possible to for chain ether compound, in ether compound, the number of oxygen atom can be 1,2,3 or 4；Preferably, ether compound can be replaced by least one halogen atom, and wherein halogen atom is F, Cl, Br, preferably F.
As the object lesson of alkyl ether, can enumerate:
1-ethyoxyl-propane (referred to as EPE)；
2-trifluoromethyl-3-methoxyl group perflenapent (referred to as TMMP)；
1,1,2,2-tetra-fluoro ethyl-2', 2', 3', 3'-tetrafluoro propyl ether (F-EPE).
Preferably, the content of ether compound is the 0.01～5% of the gross weight of electrolyte, it is further preferred that the 0.1～3% of the gross weight that the content of ether compound is electrolyte.
In above-mentioned addition of C, the number of the cyano group in nitrile compound can be 1,2,3,4 or 5, for the alkane containing 1～5 cyano group, alkene containing 1～5 cyano group；It is further preferred that be the C containing 1～4 cyano group2～12Alkane, C containing 1～4 cyano group2～12Alkene.
As being mono-nitrile compound when comprising only a cyano group, it is double nitrile compounds when containing two cyano group, is three nitrile compounds when containing three cyano group, is four nitrile compounds when containing four cyano group.It addition, in described nitrile compound, carbon-carbon double bond also can be contained.Preferably, described nitrile compound be in mono-nitrile compound, double nitrile compound, three nitrile compounds and four nitrile compounds at least one.
Object lesson as nitrile compound, can enumerate: acetonitrile, propionitrile, butyronitrile, isopropyl cyanide, valeronitrile, isobutyl cyanide, 2-methylbutyronitrile, trimethylacetonitrile, own nitrile, ring valeronitrile, cyclohexanenitrile, acrylonitrile, methacrylonitrile, butene nitrile, 3-methyl butene nitrile, 2-methyl-2-butene nitrile, 2-allyl acetonitrile, 2-methyl-2-allyl acetonitrile, 3-methyl-2-allyl acetonitrile, 2-hexene nitrile, fluoride acetonitrile, two fluoride acetonitriles, trifluoro acetonitrile, 2-fluorine propionitrile, 3-fluorine propionitrile, 2, 2-difluoro propionitrile, 2, 3-difluoro propionitrile, 3, 3-difluoro propionitrile, 2, 2, 3-trifluoro propionitrile, 3, 3, 3-trifluoro propionitrile, the mono-nitrile compound such as five fluorine propionitrile；Cyanoacetyl-Cyacetazid, succinonitrile, 2-methyl succinonitrile, tetramethyl succinonitrile, glutaronitrile, 2-methyl cellosolve acetate glutaronitrile, adiponitrile, double nitrile compound such as rich horse dintrile, 2-methylene glutaronitrile etc.；Three nitrile compounds such as 1,3,5-penta trimethylsilyl nitrile, 1,2,3-the third trimethylsilyl nitrile, 1,3,6-hexane three nitrile；TCNE etc. four nitrile compound etc..
Preferably, described nitrile compound is at least one in acetonitrile, propionitrile, butyronitrile, valeronitrile, butene nitrile, 3-methyl butene nitrile, Cyanoacetyl-Cyacetazid, succinonitrile, glutaronitrile, adiponitrile (referred to as ADN) and rich horse dintrile, further preferably, described nitrile compound is selected from Cyanoacetyl-Cyacetazid, succinonitrile, glutaronitrile, adiponitrile, rich horse dintrile and 1, at least one in 3,6-hexane three nitriles.
Preferably, the described content containing nitrile compound is the 0.01～5% of the gross weight of electrolyte, it is further preferred that the 0.1～3% of the gross weight that the described content containing nitrile compound is electrolyte.
In above-mentioned addition of C, the cyclic ester compounds containing sulfur-to-oxygen double bond can be at least one in cyclic sulfates, cyclic sulfite, sultone；Wherein sultone includes saturated sultone and the sultone containing unsaturated double-bond.
Wherein, cyclic sulfates compound is as shown in formula V 1, and cyclic sulfite compound is as formula is as shown in V 3, and sultone compound is as shown in formula V 2:
Wherein, R51、R52、R53The most independent is respectively selected from substituted or unsubstituted C1～4Alkylidene, substituted or unsubstituted C2～4Alkenylene；Substituent group is selected from halogen.
Preferably, R51、R53The most independent is respectively selected from substituted or unsubstituted C1～4Alkylidene；R52Selected from substituted or unsubstituted C1～4Alkylidene, substituted or unsubstituted C2～4Alkenylene.
Preferably, the cyclic ester compounds containing sulfur-to-oxygen double bond is at least one in following compound:
Sulfuric acid vinyl ester；
Sulphuric acid propylene；
Propylene sulfite；
1,3-propane sultone (referred to as PS)；
1,4-butyl sultone；
Acrylic-1,3-sultones.
Preferably, the content of the cyclic ester compounds containing sulfur-to-oxygen double bond is the 0.01～5% of the gross weight of electrolyte, it is further preferred that the 0.1～3% of the gross weight that content is electrolyte of the cyclic ester compounds containing sulfur-to-oxygen double bond.
Cyclic ester compounds containing sulfur-to-oxygen double bond is further selected from:
Wherein, cyclic carbonate compound includes saturated cyclic carbonic ester and the cyclic carbonate containing carbon-to-carbon unsaturated bond, and its structural formula is as shown in formula V 4:
Wherein, R54Selected from substituted or unsubstituted C1～4Alkylidene, substituted or unsubstituted C2～4Alkenylene；Substituent group is selected from halogen, C2～4Thiazolinyl.
In the cyclic carbonate compound containing carbon-to-carbon unsaturated bond, carbon-to-carbon unsaturated bond is preferably double bond, and described double bond can be located on ring, it is possible to is not positioned on ring.
In above-mentioned electrolyte, it is preferable that at least one in following compound of cyclic carbonate compound:
Vinylene carbonate (referred to as VC),
Fluorinated ethylene carbonate；
Fluoro vinylene carbonate；
1,2-bis-fluoro vinylene carbonate；
Vinylethylene carbonate.
Preferably, the content of cyclic carbonate compound is the 0.01～5% of the gross weight of electrolyte, it is further preferred that the 0.1～3% of the gross weight that the content of cyclic carbonate compounds is electrolyte.
Cyclic carbonate compound is also selected from least one in following compound:
In above-mentioned addition of C, the compound containing carbon-to-nitrogen double bond is one or more in the compound containing imido grpup and the compound containing carbodiimide-based, and wherein said imido grpup is expressed asDescribed carbodiimide-based is expressed as-N=C=N-；
Compound containing carbon-to-nitrogen double bond is as shown in formula VI a；Compound containing carbodiimide-based is as shown in VI b；
R61、R62、R63、R64、R65The most independent is respectively selected from substituted or unsubstituted C1～12Alkyl, substituted or unsubstituted C2～12Thiazolinyl；Substituent group is selected from halogen.
As the example of the compound containing carbon-to-nitrogen double bond, can enumerate:
N-amyl group isopropylimine (referred to as NPPI),
Dicyclohexylcarbodiimide (referred to as DCC).
Preferably, the content of the compound containing carbon-to-nitrogen double bond is the 0.01～5% of the gross weight of electrolyte, it is further preferred that the 0.1～3% of the gross weight that content is electrolyte of the compound containing carbon-to-nitrogen double bond.
When additive also includes addition of C, further increase lithium ion battery cycle performance, high rate performance and high-temperature storage performance under high voltages, such as further increase lithium ion battery cycle performance and high rate performance and the high-temperature storage performance at the high voltage of 4.4V～5V and 85 DEG C under the high voltage of 4.4V～5V, in addition, further improves the security performance of lithium ion battery, such as at a temperature of 150 DEG C, the Heat stability is good of lithium ion battery, substantially without occurring smoldering, the on fire and phenomenon of blast.
In above-mentioned electrolyte, organic solvent selects non-aqueous organic solvent, such as can be selected for carbon number be 1～8 and containing the compound of at least one ester group as non-aqueous organic solvent.
Preferably, organic solvent is at least one in ethylene carbonate, Allyl carbonate, butylene, dimethyl carbonate, diethyl carbonate, dipropyl carbonate, Ethyl methyl carbonate, methyl propyl carbonate, ethyl propyl carbonic acid ester, GBL, methyl propionate, methyl butyrate, ethyl acetate, propyl propionate, ethyl propionate and ethyl n-butyrate..Certainly the above-mentioned concrete compound being previously mentioned it is not limited only to, it is also possible to be the halogenated compound of above-mentioned concrete compound.
In above-mentioned electrolyte, described lithium salts optionally at least one in organic lithium salt or inorganic lithium salt.Especially, containing at least one in fluorine element, boron element, P elements in described lithium salts.
As the example of lithium salts, specifically can enumerate: lithium hexafluoro phosphate (LiPF6), difluorophosphate (LiPO2F2), LiBF4 (LiBF4), hexafluoroarsenate lithium (LiAsF6), lithium perchlorate (LiClO4), trifluoro sulphonyl lithium, three (trimethyl fluoride sulfonyl) lithium methide, two (trimethyl fluoride sulfonyl) imine lithium, double trifluoromethanesulfonimide lithium LiN (CF3SO2)2(being abbreviated as LiTFSI), double (fluorine sulphonyl) imine lithium Li (N (SO2F)2) (being abbreviated as LiFSI), di-oxalate lithium borate LiB (C2O4)2(being abbreviated as LiBOB), difluorine oxalic acid boracic acid lithium LiBF2(C2O4) (being abbreviated as LiDFOB).
In above-mentioned electrolyte, preferably, described lithium salts is at least one in lithium hexafluoro phosphate, difluorophosphate, LiBF4, hexafluoroarsenate lithium, lithium perchlorate, trifluoro sulphonyl lithium, two (trimethyl fluoride sulfonyl) imine lithium, double (fluorine sulphonyl) imine lithium or three (trimethyl fluoride sulfonyl) lithium methide.
In above-mentioned electrolyte, lithium salts concentration in the electrolytic solution can be 0.5mol/L～3mol/L, it is further preferred that the concentration that lithium salts is in the electrolytic solution is 1～2mol/L.
In this application, electrolyte uses conventional method to prepare, such as by each material mix homogeneously in electrolyte.
The another object of the application is to provide a kind of lithium ion battery, including positive plate, negative plate, lithium battery diaphragm and electrolyte, wherein, the electrolyte that electrolyte provides for the application.
In above-mentioned lithium ion battery, described positive plate includes positive electrode active materials；Described negative plate includes negative active core-shell material, and wherein, described positive electrode active materials, the concrete kind of negative active core-shell material are not limited by concrete, can select according to demand.
Preferably, described positive electrode active materials is selected from cobalt acid lithium (LiCoO2), lithium-nickel-manganese-cobalt ternary material, LiFePO 4 (LiFePO4), LiMn2O4 (LiMn2O4At least one in).
Preferably, described negative active core-shell material is material with carbon element and/or silicon materials, such as native graphite, Delanium, mesophase micro-carbon ball (referred to as MCMB), hard carbon, soft carbon, silicon, silico-carbo complex, Li-Sn alloy, Li-Sn-O alloy, Sn, SnO, SnO2, lithiumation TiO of spinel structure2-Li4Ti5O12, Li-Al alloy all can be as negative active core-shell material.
Embodiment
The application is further described below by way of instantiation.But these examples are the most exemplary, the protection domain of the application do not constituted any restriction.
In following embodiment, comparative example and test example, reagent, material and the instrument used such as does not has special explanation, the most commercially available, and wherein used reagent also can be synthesized voluntarily by conventional synthetic method and obtains.
In following experimental example, comparative example and test example, used material is as follows:
Organic solvent: ethylene carbonate (referred to as EC), Allyl carbonate (referred to as PC), diethyl carbonate (referred to as DEC)；Lithium salts: LiPF6；
Additive:
Additive A: ester dimer；
Carbonic ester dimer: 2,5-dioxa diethylene adipate (AN1)；
Carboxylate dimer: diethylene glycol diacetate esters (AN2)；
Sultone dimer: methanesulfonic acid 4-mesyloxy-butyl ester (AN3)；
Additive B: there is the dinitrile compound of ehter bond；
Aforementioned AM1, AM2, AM3, AM4 being previously mentioned；
Addition of C:
Vinylene carbonate (VC)；
1,3-propane sultone (PS)；
Adiponitrile (ADN)；
Dicyclohexylcarbodiimide (DCC)；
Lithium battery diaphragm: 16 microns of thick polypropylene isolating membrane (model is A273, Celgard company provide).
The preparation of embodiment 1 lithium ion battery
In comparative example 1#～6#With embodiment 1～10, lithium ion battery (hereinafter referred to as battery) is prepared the most by the following method:
(1) preparation of positive plate
By cobalt acid lithium (LiCoO2), binding agent Kynoar, conductive agent acetylene black be LiCoO according to weight ratio2: Kynoar: acetylene black=96:2:2 mixes, add N-Methyl pyrrolidone (NMP), then stir under de-airing mixer effect to system and become transparent and homogeneous shape, it is thus achieved that anode sizing agent；Anode sizing agent is evenly applied on the aluminium foil that thickness is 12 μm；Aluminium foil is transferred to after room temperature is dried 120 DEG C of oven drying 1h, is then passed through colding pressing, cuts and obtain positive plate.
(2) preparation of negative plate
It is graphite by graphite, acetylene black, thickening agent sodium carboxymethyl cellulose (CMC), binding agent butadiene-styrene rubber according to weight ratio: acetylene black: binding agent butadiene-styrene rubber: sodium carboxymethyl cellulose (CMC)=95:2:2:1 mixes, after adding deionized water, under the stirring action of de-airing mixer, it is thus achieved that cathode size；Cathode size is coated uniformly on Copper Foil；Copper Foil is transferred to after room temperature is dried 120 DEG C of oven drying 1h, is then passed through colding pressing, cuts and obtain negative plate.
(3) preparation of electrolyte
Comparative example 1#～6#It is prepared the most by the following method with electrolyte used in embodiment 1～10:
In water content < in the argon gas atmosphere glove box of 10ppm, EC, PC and DEC mix homogeneously is formed organic solvent, the lithium salts being fully dried is dissolved in above-mentioned mixed organic solvents, add ester dimer compound or ester dimer compound and additive B the most in organic solvent, mix homogeneously, it is thus achieved that electrolyte.Wherein, the concentration of lithium salts is 1mol/L, and the weight ratio of EC, PC, DEC is EC:PC:DEC=1:1:2.
(4) preparation of lithium ion battery
Positive plate, lithium battery isolation membrane, negative plate being folded in order, make lithium battery isolation membrane be between positive and negative plate to play the effect of isolation, then winding obtains naked battery core；Naked battery core is placed in outer package paper tinsel, the above-mentioned electrolyte prepared is injected in dried battery, through Vacuum Package, stand, be melted into, the operation such as shaping, it is thus achieved that battery.
In the preparation process of above-mentioned battery, the concrete kind of additive used in electrolyte selected in each battery, each electrolyte and content thereof, as shown in Table 1 below, the content of described additive is the calculated percetage by weight of gross weight based on electrolyte.
Table 1
Note: in table 1 above, " " represents without this corresponding in the table material.
Test case
(1) the cycle performance test of battery
By comparative example 1#～6#Following test is all carried out with the battery obtained in embodiment 1～10:
At a temperature of 45 DEG C, with the multiplying power of 0.5C by constant-current charging of battery to 4.45V, then constant-voltage charge to electric current is 0.05C, then with 0.5C constant current discharge to 3.0V, above-mentioned charging and discharging is a circulation, charging and discharging so it is repeated, respectively by following formula be calculated circulating battery 50 times, capability retention after 100 times and 300 times.It addition, the capability retention of each battery is as shown in Table 2 below.
The capability retention of n-th circulation=(discharge capacity of the discharge capacity/circulate first of n-th circulation) × 100%.
(2) the high rate performance test of battery
By comparative example 1#～6#Following test is all carried out with the battery obtained in embodiment 1～10:
By battery with 0.5C constant-current discharge to 3.0V, shelve 5min, then with 0.5C constant-current charge to 4.45V, and constant-voltage charge, be 0.05C by electric current, stand 5min, more respectively with 0.2C, 1C, 1.5C, 2C constant-current discharge to by voltage 3.0V.Discharge capacity under the conditions of record 0.2C, 1C, 1.5C, 2C is D1, discharge capacity under record 0.2C is D0, and based on the discharge capacity under 0.2C, it is calculated battery discharge capacitance under different multiplying by following formula and (surveys 15 batteries, take its meansigma methods), then the high rate performance of battery is characterized by battery discharge capacitance under different multiplying.It addition, the discharge capacitance that each battery is under different multiplying is as shown in Table 2 below.
The discharge capacitance of battery=[(D1-D0)/D0] × 100%
(3) the high-temperature storage performance test of battery
By comparative example 1#～6#Following test is all carried out with the battery obtained in embodiment 1～10:
At 25 DEG C, with the electric current of 0.5C by constant-current charging of battery to 4.45V, again with 4.45V constant-voltage charge to electric current as 0.025C, battery is made to be in 4.45V fully charged state, now detecting the thickness obtained is the thickness before battery storage, stores 4 hours the most respectively, stores 30 days at 60 DEG C, under the conditions of above-mentioned two after storage at 85 DEG C, thickness after detection obtains battery storage respectively, then calculates the thickness swelling of the battery after storage at different conditions by following formula.It addition, each battery store at different conditions after thickness swelling as shown in Table 2 below.
The thickness swelling of battery=[thickness before (thickness before thickness-storage after storage)/storage] × 100%
Table 2
(4) hot tank test
By comparative example 1#～6#Following test is all carried out with the battery obtained in embodiment 1～10:
1) with 1.0C electric current constant current, battery being charged to 4.45V, then constant-voltage charge to electric current is down to 0.05C, and charging stops；
2) battery is placed in hot tank, start to warm up to 150 DEG C from 25 DEG C with the programming rate of 5 DEG C/min, remain temperature-resistant after arriving 150 DEG C, then timing is started, observe the state of battery after 1h, by the standard of this test be: battery is without smoldering, without on fire, without blast, the most often 5 batteries of group.The result of the hot tank test of each battery is as shown in table 3.
Tested by above-mentioned hot tank, characterize the safety of battery.
Table 3
Related data from above-mentioned table 2, table 3 is appreciated that, compared with the battery prepared in comparative example, the battery prepared by embodiment, capability retention, the high rate performance under 1C, 1.5C, 2C and the thermostability at 150 DEG C lifting the most by a relatively large margin after circulation at 45 DEG C, and the thickness swelling at 60 DEG C and 85 DEG C significantly reduces.
Thus it is appreciated that: owing to electrolyte includes ester dimer and has the dintrile of ehter bond; both can form the SEI film of stable and uniform on both positive and negative polarity surface; it is effectively increased battery cycle performance under high voltages and high rate performance; there is the dintrile of ehter bond have precedence over ester dimer and form reticular protection film at positive pole; and the film forming of ester dimer is had inducing action; the two cooperatively forms the composite protection film of stable densification, and this composite protection film at high temperature or has high stability, Low ESR under high pressure.Especially when embodiment 11～14 carbonic ester dimer or carboxylate dimer and the combination of sultone dimer, effect becomes apparent from, this is that the composite S EI membrane structure owing to being formed is stable, good stability in the circulating cycle, along with the carrying out of circulation is less likely to occur repeatedly to decompose and is again formed, to improving, battery cycle performance effect under high voltages is the most obvious.
When additive also includes addition of C, the cycle performance of battery can be improved further, such as under the high pressure of 4.45V～4.5V after repeatedly circulation, still there is higher capability retention, in addition it is possible to improve battery high rate performance, high-temperature storage performance and security performance under high voltages further.
Embodiment 2
Preparing electrolyte and lithium ion battery according to the method for embodiment 1, difference is, in electrolyte, the composition of additive is as shown in table 4；
Table 4
Lithium ion battery prepared by the electrolyte of employing table 4, and the character of preparation-obtained battery is similar to Example 1, repeats no more as space is limited.
The announcement of book according to the above description, the application those skilled in the art can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the application is not limited to detailed description of the invention disclosed and described above, should also be as some modifications and changes of the application falling in the protection domain of claims hereof.
Claims (10)
1. an electrolyte, including lithium salts, organic solvent and additive, it is characterized in that, containing additive A and additive B in described additive, at least one in dimer ester compounds of described additive A, described dimer ester compounds includes carbonic ester dimer, carboxylate dimer and sultone dimer；At least one in the dinitrile compound with ehter bond of described additive B.
Electrolyte the most according to claim 1, it is characterised in that the structural formula of described carbonic ester dimer is as shown in formula I, and described carboxylate dimer structure formula is as shown in formula II:
In formula I, R11、R13The most independent is respectively selected from substituted or unsubstituted C1～12Alkyl, substituted or unsubstituted C2～12Thiazolinyl, substituted or unsubstituted C2～12Alkynyl, substituted or unsubstituted C6～26Aryl, substituted or unsubstituted C5～22Heterocyclic base；Substituent group is selected from halogen, C6～26Aryl, C3～8Cycloalkyl；
R12Selected from substituted or unsubstituted C1～12Alkylidene, substituted or unsubstituted C6～26Arlydene, by least one ehter bond and at least one substituted or unsubstituted C1～12The group of alkylidene composition, substituent group is selected from halogen；
In formula II, R21、R23The most independent is respectively selected from substituted or unsubstituted C1～12Alkyl, substituted or unsubstituted C2～12Thiazolinyl, substituted or unsubstituted C2～12Alkynyl, substituted or unsubstituted C6～26Aryl, substituted or unsubstituted C5～22Heterocyclic base；Substituent group is selected from halogen, C6～26Aryl, C3～8Cycloalkyl；
R22Selected from substituted or unsubstituted C1～12Alkylidene, substituted or unsubstituted C6～26Arlydene, by least one ehter bond and at least one substituted or unsubstituted C1～12The group of alkylidene composition, substituent group is selected from halogen.
Electrolyte the most according to claim 1, it is characterised in that described sultone dimer structure formula is as shown in formula III:
In formula III, R31、R33The most independent is respectively selected from substituted or unsubstituted C1～12Alkyl, substituted or unsubstituted C2～12Thiazolinyl, substituted or unsubstituted C2～12Alkynyl, substituted or unsubstituted C6～26Aryl, substituted or unsubstituted C5～22Heterocyclic base；Substituent group is selected from halogen, C6～26Aryl, C3～8Cycloalkyl；
R32Selected from substituted or unsubstituted C1～12Alkylidene, substituted or unsubstituted C6～26Arlydene, by least one ehter bond and at least one substituted or unsubstituted C1～12The group of alkylidene composition, substituent group is selected from halogen.
Electrolyte the most according to claim 1, it is characterised in that described in there is the structural formula of dinitrile compound of ehter bond as shown in formula IV:
R41、R42、R43The most independent is respectively selected from C1～5Alkylidene, C2～5Alkenylene, m is the integer of 1～5.
Electrolyte the most according to claim 1, it is characterized in that, described have the dinitrile compound of ehter bond selected from 3, 5-dioxa-pimelic dinitrile, 1, 4-bis-(2-cyanoethoxy) butane, ethylene glycol bisthioglycolate (2-cyano ethyl) ether, diethylene glycol two (2-cyano ethyl) ether, triethylene glycol two (2-cyano ethyl) ether, TEG two (2-cyano ethyl) ether, 1, 3-bis-(2-cyanoethoxy) propane, 1, 4-bis-(2-cyanoethoxy) butane, 1, 5-bis-(2-cyanoethoxy) pentane, at least one in ethylene glycol bisthioglycolate (4-cyanobutyl) ether.
Electrolyte the most according to claim 1, it is characterised in that the total content of described additive A and additive B is the 0.01%～10% of the gross weight of electrolyte.
Electrolyte the most according to claim 1, it is characterized in that, described additive also includes addition of C, at least one in ether compound, nitrile compound, cyclic ester compounds containing sulfur-to-oxygen double bond, cyclic carbonate compound, compound containing carbon-to-nitrogen double bond of described addition of C；
At least one in substituted or unsubstituted alkyl ether of described ether compound, substituent group is halogen；
Described nitrile compound is selected from the alkane containing 1～5 cyano group, the alkene containing 1～5 cyano group at least one；
At least one in cyclic sulfates, cyclic sulfite, sultone of the described cyclic ester compounds containing sulfur-to-oxygen double bond；
The described compound containing carbon-to-nitrogen double bond is for selected from containingAt least one in the compound of-N=C=N-.
Electrolyte the most according to claim 7, it is characterised in that
Described ether compound is selected from substituted or unsubstituted C1～12At least one in alkyl ether, substituent group is halogen；
Described nitrile compound is selected from the C containing 1～4 cyano group2～12Alkane, C containing 1～4 cyano group2～12In alkene at least one；
At least one in the compound shown in formula V 1, formula V 2, formula V 3 of the described cyclic ester compounds containing sulfur-to-oxygen double bond: as described at least one in compound as shown in formula V 4 of cyclic carbonate compound:
R51、R52、R53、R54The most independent is respectively selected from substituted or unsubstituted C1～4Alkylidene, substituted or unsubstituted C2～4Alkenylene；Substituent group is selected from halogen, C2～4Thiazolinyl.
Electrolyte the most according to claim 7, it is characterized in that, described addition of C is selected from 1-ethyoxyl-propane, 2-trifluoromethyl-3-methoxyl group perflenapent, 1, 1, 2, 2-tetra-fluoro ethyl-2', 2', 3', 3'-tetrafluoro propyl ether, acetonitrile, propionitrile, butyronitrile, valeronitrile, butene nitrile, 3-methyl butene nitrile, Cyanoacetyl-Cyacetazid, succinonitrile, glutaronitrile, adiponitrile, rich horse dintrile, sulfuric acid vinyl ester, sulphuric acid propylene, propylene sulfite, 1, 3-N-morpholinopropanesulfonic acid lactone, 1, 4-butyl sultone, acrylic-1, 3-sultones, vinylene carbonate, fluorinated ethylene carbonate, fluoro vinylene carbonate, 1, 2-bis-fluoro vinylene carbonate, vinylethylene carbonate, at least one in dicyclohexylcarbodiimide；
It is furthermore preferred that the 0.01%～10% of the gross weight that the content of described addition of C is electrolyte.
10. a lithium ion battery, it is characterised in that include the positive plate containing positive electrode active materials, negative plate containing negative active core-shell material, lithium battery diaphragm and the electrolyte according to any one of claim 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352295.8A CN105826608A (en) | 2016-05-25 | 2016-05-25 | Electrolyte and lithium ion battery containing electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352295.8A CN105826608A (en) | 2016-05-25 | 2016-05-25 | Electrolyte and lithium ion battery containing electrolyte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105826608A true CN105826608A (en) | 2016-08-03 |
Family
ID=56531307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610352295.8A Pending CN105826608A (en) | 2016-05-25 | 2016-05-25 | Electrolyte and lithium ion battery containing electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105826608A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528088A (en) * | 2016-06-20 | 2017-12-29 | 万向二三股份公司 | A kind of high-energy-density positive electrode is adapted to high-voltage electrolyte |
| CN109888383A (en) * | 2017-12-06 | 2019-06-14 | 宁德新能源科技有限公司 | Electrolyte and lithium ion battery |
| CN110335991A (en) * | 2019-07-15 | 2019-10-15 | 骆驼集团武汉光谷研发中心有限公司 | A kind of long circulation life battery and preparation method thereof |
| EP3557678A1 (en) * | 2018-04-20 | 2019-10-23 | Contemporary Amperex Technology Co., Limited | Electrolyte and battery |
| CN110416614A (en) * | 2019-08-02 | 2019-11-05 | 湖州昆仑动力电池材料有限公司 | A kind of nickelic electrolyte for lithium ion battery |
| CN110419134A (en) * | 2017-09-26 | 2019-11-05 | Tdk株式会社 | Lithium ion secondary battery nonaqueous electrolytic solution and the lithium ion secondary battery for using it |
| CN110637388A (en) * | 2017-05-18 | 2019-12-31 | 日本电气株式会社 | Electrolyte for lithium ion secondary battery and lithium ion secondary battery using same |
| CN111029650A (en) * | 2017-02-13 | 2020-04-17 | 宁德新能源科技有限公司 | Electrolyte and secondary battery |
| CN111129598A (en) * | 2019-12-30 | 2020-05-08 | 东莞市杉杉电池材料有限公司 | A high-voltage lithium-ion battery non-aqueous electrolyte and its lithium-ion battery |
| WO2020119808A1 (en) * | 2018-12-14 | 2020-06-18 | 宁德时代新能源科技股份有限公司 | Electrolyte, battery and device |
| CN112002942A (en) * | 2018-09-21 | 2020-11-27 | 宁德新能源科技有限公司 | Electrolyte and electrochemical device containing same |
| CN112400249A (en) * | 2020-03-24 | 2021-02-23 | 宁德新能源科技有限公司 | Electrolyte and electrochemical device |
| CN112786963A (en) * | 2019-11-01 | 2021-05-11 | 广州汽车集团股份有限公司 | Lithium ion battery electrolyte, preparation method thereof, lithium ion battery cell, lithium ion battery pack and application thereof |
| WO2021128000A1 (en) * | 2019-12-24 | 2021-07-01 | 宁德时代新能源科技股份有限公司 | Secondary battery and device containing secondary battery |
| CN113381072A (en) * | 2017-12-06 | 2021-09-10 | 宁德新能源科技有限公司 | Electrolyte and battery containing the same |
| CN119069811A (en) * | 2024-10-31 | 2024-12-03 | 中创新航科技集团股份有限公司 | A lithium ion battery and its application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359750A (en) * | 2007-05-21 | 2009-02-04 | 索尼株式会社 | Electrolytic solution and battery |
| CN101714657A (en) * | 2009-11-30 | 2010-05-26 | 东莞市杉杉电池材料有限公司 | Novel multifunctional lithium ion battery electrolyte |
| CN104752769A (en) * | 2015-04-10 | 2015-07-01 | 宁德新能源科技有限公司 | Non-aqueous electrolyte and lithium ion battery utilizing same |
| CN105355975A (en) * | 2015-10-20 | 2016-02-24 | 宁德新能源科技有限公司 | Electrolyte solution and lithium ion battery comprising same |
| CN105355968A (en) * | 2015-11-24 | 2016-02-24 | 宁德新能源科技有限公司 | Electrolyte and lithium ion battery inducing same |
-
2016
- 2016-05-25 CN CN201610352295.8A patent/CN105826608A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359750A (en) * | 2007-05-21 | 2009-02-04 | 索尼株式会社 | Electrolytic solution and battery |
| CN101714657A (en) * | 2009-11-30 | 2010-05-26 | 东莞市杉杉电池材料有限公司 | Novel multifunctional lithium ion battery electrolyte |
| CN104752769A (en) * | 2015-04-10 | 2015-07-01 | 宁德新能源科技有限公司 | Non-aqueous electrolyte and lithium ion battery utilizing same |
| CN105355975A (en) * | 2015-10-20 | 2016-02-24 | 宁德新能源科技有限公司 | Electrolyte solution and lithium ion battery comprising same |
| CN105355968A (en) * | 2015-11-24 | 2016-02-24 | 宁德新能源科技有限公司 | Electrolyte and lithium ion battery inducing same |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528088A (en) * | 2016-06-20 | 2017-12-29 | 万向二三股份公司 | A kind of high-energy-density positive electrode is adapted to high-voltage electrolyte |
| CN111029650A (en) * | 2017-02-13 | 2020-04-17 | 宁德新能源科技有限公司 | Electrolyte and secondary battery |
| CN111029650B (en) * | 2017-02-13 | 2023-05-02 | 宁德新能源科技有限公司 | Electrolyte and secondary battery |
| US11489202B2 (en) | 2017-05-18 | 2022-11-01 | Nec Corporation | Electrolyte solution for lithium ion secondary battery and lithium ion secondary battery using same |
| CN110637388A (en) * | 2017-05-18 | 2019-12-31 | 日本电气株式会社 | Electrolyte for lithium ion secondary battery and lithium ion secondary battery using same |
| CN110419134A (en) * | 2017-09-26 | 2019-11-05 | Tdk株式会社 | Lithium ion secondary battery nonaqueous electrolytic solution and the lithium ion secondary battery for using it |
| CN109888383A (en) * | 2017-12-06 | 2019-06-14 | 宁德新能源科技有限公司 | Electrolyte and lithium ion battery |
| CN113381072A (en) * | 2017-12-06 | 2021-09-10 | 宁德新能源科技有限公司 | Electrolyte and battery containing the same |
| CN110391460B (en) * | 2018-04-20 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | Electrolyte and battery |
| CN110391460A (en) * | 2018-04-20 | 2019-10-29 | 宁德时代新能源科技股份有限公司 | Electrolyte and battery |
| EP3557678A1 (en) * | 2018-04-20 | 2019-10-23 | Contemporary Amperex Technology Co., Limited | Electrolyte and battery |
| US11121406B2 (en) | 2018-04-20 | 2021-09-14 | Contemporary Amperex Technology Co., Limited | Electrolyte and battery |
| CN112002942A (en) * | 2018-09-21 | 2020-11-27 | 宁德新能源科技有限公司 | Electrolyte and electrochemical device containing same |
| WO2020119808A1 (en) * | 2018-12-14 | 2020-06-18 | 宁德时代新能源科技股份有限公司 | Electrolyte, battery and device |
| CN110335991A (en) * | 2019-07-15 | 2019-10-15 | 骆驼集团武汉光谷研发中心有限公司 | A kind of long circulation life battery and preparation method thereof |
| CN110335991B (en) * | 2019-07-15 | 2021-04-13 | 骆驼集团武汉光谷研发中心有限公司 | Long-cycle-life battery and manufacturing method thereof |
| CN110416614A (en) * | 2019-08-02 | 2019-11-05 | 湖州昆仑动力电池材料有限公司 | A kind of nickelic electrolyte for lithium ion battery |
| CN112786963A (en) * | 2019-11-01 | 2021-05-11 | 广州汽车集团股份有限公司 | Lithium ion battery electrolyte, preparation method thereof, lithium ion battery cell, lithium ion battery pack and application thereof |
| CN112786963B (en) * | 2019-11-01 | 2022-03-11 | 广汽埃安新能源汽车有限公司 | Lithium-ion battery electrolyte and preparation method thereof, lithium-ion battery cell, lithium-ion battery pack and application thereof |
| WO2021128000A1 (en) * | 2019-12-24 | 2021-07-01 | 宁德时代新能源科技股份有限公司 | Secondary battery and device containing secondary battery |
| US11961961B2 (en) | 2019-12-24 | 2024-04-16 | Contemporary Amperex Technology Co., Limited | Secondary battery and apparatus containing the same |
| CN111129598A (en) * | 2019-12-30 | 2020-05-08 | 东莞市杉杉电池材料有限公司 | A high-voltage lithium-ion battery non-aqueous electrolyte and its lithium-ion battery |
| CN112400249A (en) * | 2020-03-24 | 2021-02-23 | 宁德新能源科技有限公司 | Electrolyte and electrochemical device |
| CN119069811A (en) * | 2024-10-31 | 2024-12-03 | 中创新航科技集团股份有限公司 | A lithium ion battery and its application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105826607B (en) | A kind of electrolyte and the lithium ion battery including the electrolyte | |
| CN105826608A (en) | Electrolyte and lithium ion battery containing electrolyte | |
| CN105428701B (en) | A kind of electrolyte and the lithium ion battery including the electrolyte | |
| CN103797635B (en) | Nonaqueous electrolytic solution secondary battery | |
| CN105826606B (en) | Electrolyte and lithium ion battery containing same | |
| CN105609874A (en) | Electrolyte solution and lithium ion battery comprising same | |
| CN107768719A (en) | A kind of lithium-ion battery electrolytes and lithium ion battery | |
| CN107394269A (en) | Electrolyte and lithium ion battery | |
| CN110336075B (en) | Electrolyte solution, electrochemical device and electronic device comprising same | |
| CN103078136A (en) | Low-temperature rate lithium ion battery electrolyte | |
| CN105703007A (en) | Non-aqueous electrolyte for high-voltage rapid-charging type lithium ion battery | |
| CN105449279B (en) | Nonaqueous electrolytic solution and the lithium ion battery for using the nonaqueous electrolytic solution | |
| CN104103852A (en) | Nonaqueous electrolyte of high-voltage lithium battery | |
| EP2879144A1 (en) | Electricity storage device | |
| CN108232300A (en) | A kind of lithium ion battery and its electrolyte | |
| CN106785044A (en) | A kind of electrolyte and secondary cell | |
| CN102394314A (en) | Lithium ion battery electrolyte and lithium ion secondary battery | |
| CN107210489A (en) | Nonaqueous electrolytic solution and nonaqueous electrolytic solution secondary battery | |
| CN105655641B (en) | A kind of electrolyte and its lithium ion battery | |
| CN105895955A (en) | Electrolyte and lithium ion battery | |
| CN105845980A (en) | Electrolyte and lithium ion battery containing same | |
| US20200136183A1 (en) | Electrolyte and lithium ion battery | |
| CN104600359A (en) | Nonaqueous electrolytic solution of high-voltage lithium ion battery | |
| CN109309246A (en) | Electrolyte and electrochemical energy storage device | |
| CN109037776A (en) | Electrolyte and battery comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160803 |
|
| RJ01 | Rejection of invention patent application after publication |