KR102379565B1 - 리튬 이차전지용 전해액 및 이를 구비한 리튬 이차전지 - Google Patents
리튬 이차전지용 전해액 및 이를 구비한 리튬 이차전지 Download PDFInfo
- Publication number
- KR102379565B1 KR102379565B1 KR1020140185907A KR20140185907A KR102379565B1 KR 102379565 B1 KR102379565 B1 KR 102379565B1 KR 1020140185907 A KR1020140185907 A KR 1020140185907A KR 20140185907 A KR20140185907 A KR 20140185907A KR 102379565 B1 KR102379565 B1 KR 102379565B1
- Authority
- KR
- South Korea
- Prior art keywords
- thiocyanate
- secondary battery
- lithium secondary
- electrolyte
- lithium
- 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.)
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 46
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000011255 nonaqueous electrolyte Substances 0.000 title 1
- 239000003792 electrolyte Substances 0.000 claims abstract description 46
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 20
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 20
- 239000003960 organic solvent Substances 0.000 claims abstract description 19
- 150000003839 salts Chemical class 0.000 claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 15
- 150000001768 cations Chemical class 0.000 claims abstract description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 6
- 150000001450 anions Chemical class 0.000 claims abstract description 4
- -1 acyclic sulfone Chemical class 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 11
- 239000008151 electrolyte solution Substances 0.000 claims description 10
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 claims description 7
- 239000000126 substance Substances 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
- 150000005676 cyclic carbonates Chemical class 0.000 claims description 6
- 150000008053 sultones Chemical class 0.000 claims description 6
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical group [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 claims description 5
- SCSJEBFMSZHPTH-UHFFFAOYSA-M tetraethylazanium;thiocyanate Chemical compound [S-]C#N.CC[N+](CC)(CC)CC SCSJEBFMSZHPTH-UHFFFAOYSA-M 0.000 claims description 5
- PJLHNSWILUSPNO-UHFFFAOYSA-M tetramethylazanium;thiocyanate Chemical compound [S-]C#N.C[N+](C)(C)C PJLHNSWILUSPNO-UHFFFAOYSA-M 0.000 claims description 5
- QWQCHNPMGYGPQE-UHFFFAOYSA-M tetrapropylazanium;thiocyanate Chemical compound [S-]C#N.CCC[N+](CCC)(CCC)CCC QWQCHNPMGYGPQE-UHFFFAOYSA-M 0.000 claims description 5
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-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
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- AQDIOGNVJPHZCO-UHFFFAOYSA-M butyl(trimethyl)azanium;thiocyanate Chemical compound [S-]C#N.CCCC[N+](C)(C)C AQDIOGNVJPHZCO-UHFFFAOYSA-M 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- KTHGFLCDHACYCU-UHFFFAOYSA-M diethyl(dimethyl)azanium thiocyanate Chemical compound [S-]C#N.CC[N+](C)(C)CC KTHGFLCDHACYCU-UHFFFAOYSA-M 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- RSHBFZCIFFBTEW-UHFFFAOYSA-M tetrabutylazanium;thiocyanate Chemical compound [S-]C#N.CCCC[N+](CCCC)(CCCC)CCCC RSHBFZCIFFBTEW-UHFFFAOYSA-M 0.000 claims description 3
- XEPCIGJWOZICNH-UHFFFAOYSA-M tetraheptylazanium;thiocyanate Chemical compound [S-]C#N.CCCCCCC[N+](CCCCCCC)(CCCCCCC)CCCCCCC XEPCIGJWOZICNH-UHFFFAOYSA-M 0.000 claims description 3
- AADZNFZSRRPVFJ-UHFFFAOYSA-M tetrahexylazanium;thiocyanate Chemical compound [S-]C#N.CCCCCC[N+](CCCCCC)(CCCCCC)CCCCCC AADZNFZSRRPVFJ-UHFFFAOYSA-M 0.000 claims description 3
- JCEZNVYYPIYZPZ-UHFFFAOYSA-M tetrapentylazanium;thiocyanate Chemical compound [S-]C#N.CCCCC[N+](CCCCC)(CCCCC)CCCCC JCEZNVYYPIYZPZ-UHFFFAOYSA-M 0.000 claims description 3
- LTGAKGBPTJRQKD-UHFFFAOYSA-M triethyl(methyl)azanium;thiocyanate Chemical compound [S-]C#N.CC[N+](C)(CC)CC LTGAKGBPTJRQKD-UHFFFAOYSA-M 0.000 claims description 3
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 claims description 2
- 229910020366 ClO 4 Inorganic materials 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims 1
- RVFWKCIFBJJTQD-UHFFFAOYSA-M ethyl(trimethyl)azanium thiocyanate Chemical compound [S-]C#N.CC[N+](C)(C)C RVFWKCIFBJJTQD-UHFFFAOYSA-M 0.000 claims 1
- ZJZXSOKJEJFHCP-UHFFFAOYSA-M lithium;thiocyanate Chemical compound [Li+].[S-]C#N ZJZXSOKJEJFHCP-UHFFFAOYSA-M 0.000 claims 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 claims 1
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical compound CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 8
- 230000000996 additive effect Effects 0.000 abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 9
- 229910001416 lithium ion Inorganic materials 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 5
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 5
- 239000002033 PVDF binder Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 5
- 239000011135 tin Substances 0.000 description 5
- 229910013870 LiPF 6 Inorganic materials 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000011149 active material Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000007774 positive electrode material Substances 0.000 description 4
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 4
- 238000007086 side reaction Methods 0.000 description 4
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N thiocyanic acid Chemical compound SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 239000006183 anode active material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000006258 conductive agent Substances 0.000 description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- 229910000314 transition metal oxide Inorganic materials 0.000 description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- OZJPLYNZGCXSJM-UHFFFAOYSA-N 5-valerolactone Chemical compound O=C1CCCCO1 OZJPLYNZGCXSJM-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 229910021383 artificial graphite Inorganic materials 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000006182 cathode active material Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- JBFHTYHTHYHCDJ-UHFFFAOYSA-N gamma-caprolactone Chemical compound CCC1CCC(=O)O1 JBFHTYHTHYHCDJ-UHFFFAOYSA-N 0.000 description 2
- GAEKPEKOJKCEMS-UHFFFAOYSA-N gamma-valerolactone Chemical compound CC1CCC(=O)O1 GAEKPEKOJKCEMS-UHFFFAOYSA-N 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 2
- 229910021382 natural graphite Inorganic materials 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- HHVIBTZHLRERCL-UHFFFAOYSA-N sulfonyldimethane Chemical compound CS(C)(=O)=O HHVIBTZHLRERCL-UHFFFAOYSA-N 0.000 description 2
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- WDXYVJKNSMILOQ-UHFFFAOYSA-N 1,3,2-dioxathiolane 2-oxide Chemical compound O=S1OCCO1 WDXYVJKNSMILOQ-UHFFFAOYSA-N 0.000 description 1
- FSSPGSAQUIYDCN-UHFFFAOYSA-N 1,3-Propane sultone Chemical compound O=S1(=O)CCCO1 FSSPGSAQUIYDCN-UHFFFAOYSA-N 0.000 description 1
- NVJUHMXYKCUMQA-UHFFFAOYSA-N 1-ethoxypropane Chemical compound CCCOCC NVJUHMXYKCUMQA-UHFFFAOYSA-N 0.000 description 1
- MBDUIEKYVPVZJH-UHFFFAOYSA-N 1-ethylsulfonylethane Chemical compound CCS(=O)(=O)CC MBDUIEKYVPVZJH-UHFFFAOYSA-N 0.000 description 1
- YBJCDTIWNDBNTM-UHFFFAOYSA-N 1-methylsulfonylethane Chemical compound CCS(C)(=O)=O YBJCDTIWNDBNTM-UHFFFAOYSA-N 0.000 description 1
- WUIJTQZXUURFQU-UHFFFAOYSA-N 1-methylsulfonylethene Chemical compound CS(=O)(=O)C=C WUIJTQZXUURFQU-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
- IFDLFCDWOFLKEB-UHFFFAOYSA-N 2-methylbutylbenzene Chemical compound CCC(C)CC1=CC=CC=C1 IFDLFCDWOFLKEB-UHFFFAOYSA-N 0.000 description 1
- LWLOKSXSAUHTJO-UHFFFAOYSA-N 4,5-dimethyl-1,3-dioxolan-2-one Chemical compound CC1OC(=O)OC1C LWLOKSXSAUHTJO-UHFFFAOYSA-N 0.000 description 1
- LSUWCXHZPFTZSF-UHFFFAOYSA-N 4-ethyl-5-methyl-1,3-dioxolan-2-one Chemical compound CCC1OC(=O)OC1C LSUWCXHZPFTZSF-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
- AUXJVUDWWLIGRU-UHFFFAOYSA-N 4-propyl-1,3-dioxolan-2-one Chemical compound CCCC1COC(=O)O1 AUXJVUDWWLIGRU-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229910018871 CoO 2 Inorganic materials 0.000 description 1
- 229920008712 Copo Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910001228 Li[Ni1/3Co1/3Mn1/3]O2 (NCM 111) Inorganic materials 0.000 description 1
- XOBKSJJDNFUZPF-UHFFFAOYSA-N Methoxyethane Chemical compound CCOC XOBKSJJDNFUZPF-UHFFFAOYSA-N 0.000 description 1
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 description 1
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- 239000004642 Polyimide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
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- 150000003868 ammonium compounds Chemical class 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
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- OEZRFZQGVONVRL-UHFFFAOYSA-N butane-1,3-diol;sulfurous acid Chemical compound OS(O)=O.CC(O)CCO OEZRFZQGVONVRL-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
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- 230000015556 catabolic process Effects 0.000 description 1
- 150000005678 chain carbonates Chemical class 0.000 description 1
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- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 description 1
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- 238000004090 dissolution Methods 0.000 description 1
- AFOSIXZFDONLBT-UHFFFAOYSA-N divinyl sulfone Chemical compound C=CS(=O)(=O)C=C AFOSIXZFDONLBT-UHFFFAOYSA-N 0.000 description 1
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- QKBJDEGZZJWPJA-UHFFFAOYSA-N ethyl propyl carbonate Chemical compound [CH2]COC(=O)OCCC QKBJDEGZZJWPJA-UHFFFAOYSA-N 0.000 description 1
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- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 1
- 229910021450 lithium metal oxide Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- 239000002931 mesocarbon microbead Substances 0.000 description 1
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- VNKYTQGIUYNRMY-UHFFFAOYSA-N methoxypropane Chemical compound CCCOC VNKYTQGIUYNRMY-UHFFFAOYSA-N 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
- 239000012046 mixed solvent Substances 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- MHYFEEDKONKGEB-UHFFFAOYSA-N oxathiane 2,2-dioxide Chemical compound O=S1(=O)CCCCO1 MHYFEEDKONKGEB-UHFFFAOYSA-N 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
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- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- YCCPTBSIWCOONA-UHFFFAOYSA-N prop-1-ene;sulfurous acid Chemical compound CC=C.OS(O)=O YCCPTBSIWCOONA-UHFFFAOYSA-N 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 239000002296 pyrolytic carbon Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000006234 thermal black Substances 0.000 description 1
- YKRLUQXOIGNWGF-UHFFFAOYSA-N thiocyanic acid Chemical compound SC#N.SC#N YKRLUQXOIGNWGF-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/052—Li-accumulators
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- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
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Abstract
Description
Claims (7)
- 제 1 항에 있어서,
상기 고체염은 암모늄 티오시아네이트(Ammonium thiocyanate), 테트라메틸암모늄 티오시아네이트(Tetramethylammonium thiocyanate), 테트라에틸암모늄 티오시아네이트(Tetraethylammonium thiocyanate), 테트라프로필암모늄 티오시아네이트(Tetrapropylammonium thiocyanate), 테트라부틸암모늄 티오시아네이트(Tetrabutylammonium thiocyanate), 테트라펜틸암모늄 티오시아네이트(Tetrapentylammonium thiocyanate), 테트라헥실암모늄 티오시아네이트(Tetrahexylammonium thiocyanate), 테트라헵틸암모늄 티오시아네이트(Tetraheptylammonium thiocyanate), 에틸트리메틸암모늄 티오시아네이트(Ethyltrimethylammonium thiocyanate), 트리에틸메틸암모늄 티오시아네이트(Triethylmethylammonium thiocyanate), 부틸트리메틸암모늄 티오시아네이트(Butyltrimethylammonium thiocyanate), 디에틸디메틸암모늄 티오시아네이트(Diethyldimethylammonium thiocyanate) 및 디부틸디메틸암모늄 티오시아네이트(Dibutyldimethylammonium thiocyanate)로 이루어진 군에서 선택된 1종 이상인 것을 특징으로 하는 리튬 이차전지. - 제 1 항에 있어서,
상기 고체염의 함량이 상기 리튬염 및 유기 용매의 총합 100 중량부 대비 0.01 내지 5중량부인 것을 특징으로 하는 리튬 이차전지. - 제1항에 있어서,
상기 리튬염의 음이온은 F-, Cl-, Br-, I-, NO3 -, N(CN)2 -, BF4 -, ClO4 -, PF6 -, (CF3)2PF4 -, (CF3)3PF3 -, (CF3)4PF2 -, (CF3)5PF-, (CF3)6P-, CF3SO3 -, CF3CF2SO3 -, (CF3SO2)2N-, (FSO2)2N-, CF3CF2(CF3)2CO-, (CF3SO2)2CH-, (SF5)3C-, (CF3SO2)3C-, CF3(CF2)7SO3 -, CF3CO2 -, CH3CO2 -, SCN- 및 (CF3CF2SO2)2N-로 이루어진 군으로부터 선택된 어느 하나인 것을 특징으로 하는 리튬 이차전지. - 제1항에 있어서,
상기 유기 용매는 에테르, 에스테르, 아미드, 선형 카보네이트 및 환형 카보네이트로 이루어진 군으로부터 선택된 1종 이상인 것을 특징으로 하는 리튬 이차전지. - 제1항에 있어서,
상기 전해액은 비닐렌 카보네이트, 비닐에틸렌 카보네이트, 플루오로에틸렌 카보네이트, 환형 설파이트, 포화 설톤, 불포화 설톤 및 비환형 설폰으로 이루어진 군에서 선택된 1종 이상을 더 포함하는 것을 특징으로 하는 리튬 이차전지. - 삭제
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PCT/KR2015/007787 WO2016104903A1 (ko) | 2014-12-22 | 2015-07-27 | 리튬 이차전지용 전해액 및 이를 구비한 리튬 이차전지 |
US15/538,960 US10601068B2 (en) | 2014-12-22 | 2015-07-27 | Electrolyte for lithium secondary battery and lithium secondary battery comprising same |
EP15873431.9A EP3240092B1 (en) | 2014-12-22 | 2015-07-27 | Lithium secondary battery comprising a specific electrolyte |
CN201580076690.1A CN107431244B (zh) | 2014-12-22 | 2015-07-27 | 用于锂二次电池的电解液及包含其的锂二次电池 |
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JP4938923B2 (ja) * | 2000-07-12 | 2012-05-23 | ソニー株式会社 | 二次電池 |
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