KR101731237B1 - 음극, 전지 및 그것들의 제조 방법 - Google Patents
음극, 전지 및 그것들의 제조 방법 Download PDFInfo
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- KR101731237B1 KR101731237B1 KR1020160035930A KR20160035930A KR101731237B1 KR 101731237 B1 KR101731237 B1 KR 101731237B1 KR 1020160035930 A KR1020160035930 A KR 1020160035930A KR 20160035930 A KR20160035930 A KR 20160035930A KR 101731237 B1 KR101731237 B1 KR 101731237B1
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- 238000004519 manufacturing process Methods 0.000 title description 16
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 122
- 239000002184 metal Substances 0.000 claims abstract description 112
- 150000003839 salts Chemical class 0.000 claims abstract description 103
- 238000000576 coating method Methods 0.000 claims abstract description 89
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- 239000000126 substance Substances 0.000 claims description 123
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- 150000001875 compounds Chemical class 0.000 claims description 70
- -1 alkali metal salt Chemical class 0.000 claims description 68
- 239000007769 metal material Substances 0.000 claims description 58
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 35
- 229930195734 saturated hydrocarbon Natural products 0.000 claims description 34
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 33
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 31
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 13
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- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 12
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- 229910013063 LiBF 4 Inorganic materials 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
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- WZFUQSJFWNHZHM-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 WZFUQSJFWNHZHM-UHFFFAOYSA-N 0.000 description 5
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- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 2
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- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- SOCJEFTZDJUXNO-UHFFFAOYSA-L lithium squarate Chemical compound [Li+].[Li+].[O-]C1=C([O-])C(=O)C1=O SOCJEFTZDJUXNO-UHFFFAOYSA-L 0.000 description 1
- WAHQBNXSPALNEA-UHFFFAOYSA-L lithium succinate Chemical compound [Li+].[Li+].[O-]C(=O)CCC([O-])=O WAHQBNXSPALNEA-UHFFFAOYSA-L 0.000 description 1
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Chemical compound [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 description 1
- ACFSQHQYDZIPRL-UHFFFAOYSA-N lithium;bis(1,1,2,2,2-pentafluoroethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)C(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)C(F)(F)F ACFSQHQYDZIPRL-UHFFFAOYSA-N 0.000 description 1
- QVXQYMZVJNYDNG-UHFFFAOYSA-N lithium;bis(trifluoromethylsulfonyl)methylsulfonyl-trifluoromethane Chemical compound [Li+].FC(F)(F)S(=O)(=O)[C-](S(=O)(=O)C(F)(F)F)S(=O)(=O)C(F)(F)F QVXQYMZVJNYDNG-UHFFFAOYSA-N 0.000 description 1
- RWBVMPSHCKMNBH-UHFFFAOYSA-L magnesium 2-sulfopropanoate Chemical compound S(=O)(=O)(O)C(C(=O)[O-])C.[Mg+2].S(=O)(=O)(O)C(C(=O)[O-])C RWBVMPSHCKMNBH-UHFFFAOYSA-L 0.000 description 1
- APABPKDPRWUOAL-UHFFFAOYSA-L magnesium;2-sulfoacetate Chemical compound [Mg+2].OS(=O)(=O)CC([O-])=O.OS(=O)(=O)CC([O-])=O APABPKDPRWUOAL-UHFFFAOYSA-L 0.000 description 1
- JACIQPRZIYXYEG-UHFFFAOYSA-L magnesium;2-sulfobenzoate Chemical compound [Mg+2].OS(=O)(=O)C1=CC=CC=C1C([O-])=O.OS(=O)(=O)C1=CC=CC=C1C([O-])=O JACIQPRZIYXYEG-UHFFFAOYSA-L 0.000 description 1
- KQCMHZNYKGJGIS-UHFFFAOYSA-L magnesium;2-sulfobutanoate Chemical compound [Mg+2].CCC(C([O-])=O)S(O)(=O)=O.CCC(C([O-])=O)S(O)(=O)=O KQCMHZNYKGJGIS-UHFFFAOYSA-L 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005551 mechanical alloying Methods 0.000 description 1
- 238000003701 mechanical milling Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 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
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- 239000011331 needle coke Substances 0.000 description 1
- 229910021470 non-graphitizable carbon Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- VGTPKLINSHNZRD-UHFFFAOYSA-N oxoborinic acid Chemical compound OB=O VGTPKLINSHNZRD-UHFFFAOYSA-N 0.000 description 1
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- 125000006551 perfluoro alkylene group Chemical group 0.000 description 1
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- 239000011118 polyvinyl acetate Substances 0.000 description 1
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- 239000011148 porous material Substances 0.000 description 1
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- 229910052700 potassium Inorganic materials 0.000 description 1
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- 230000002250 progressing effect Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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- 239000011029 spinel Substances 0.000 description 1
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- 239000000758 substrate Substances 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- RINCXYDBBGOEEQ-UHFFFAOYSA-N succinic anhydride Chemical compound O=C1CCC(=O)O1 RINCXYDBBGOEEQ-UHFFFAOYSA-N 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- OKUCEQDKBKYEJY-UHFFFAOYSA-N tert-butyl 3-(methylamino)pyrrolidine-1-carboxylate Chemical compound CNC1CCN(C(=O)OC(C)(C)C)C1 OKUCEQDKBKYEJY-UHFFFAOYSA-N 0.000 description 1
- YTZVWGRNMGHDJE-UHFFFAOYSA-N tetralithium;silicate Chemical compound [Li+].[Li+].[Li+].[Li+].[O-][Si]([O-])([O-])[O-] YTZVWGRNMGHDJE-UHFFFAOYSA-N 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- CFJRPNFOLVDFMJ-UHFFFAOYSA-N titanium disulfide Chemical compound S=[Ti]=S CFJRPNFOLVDFMJ-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
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Abstract
Description
도 2는 도 1에 나타낸 음극의 일부를 확대하여 나타내는 단면도다.
도 3은 도 2에 나타낸 음극에 대한 참고예의 음극을 나타내는 단면도다.
도 4는 도 1에 나타낸 음극의 단면구조를 나타내는 SEM사진 및 그 모식도다.
도 5는 도 1에 나타낸 음극의 다른 단면구조를 나타내는 SEM사진 및 그 모식도다.
도 6은 본 발명의 일 실시예에 관련되는 음극을 구비한 제1 전지의 구성을 나타내는 단면도다.
도 7은 도 6에 나타낸 나선으로 감긴 전극체의 일부를 확대하여 나타내는 단면도다.
도 8은 본 발명의 일 실시예에 관련되는 음극을 구비한 제2 전지의 구성을 나타내는 단면도다.
도 9는 도 8에 나타낸 나선으로 감긴 전극체의 IX-IX선에 따른 단면도다.
도 10은 도 9에 나타낸 나선으로 감긴 전극체의 일부를 확대하여 나타내는 단면도다.
음극 | 전해액 | 방전용량 유지율 (%) |
팽창 (mm) |
||||
Coat | 용매 (중량%) |
전해질염 (mol/kg) |
그 외 | ||||
EC | DEC | ||||||
실시예 1-1 | 화학식 9(4) | 30 | 70 | LiPF6:1 | - | 63 | 0.136 |
실시예 1-2 | 화학식 9(8) | 30 | 70 | - | 32 | 0.123 | |
실시예 1-3 | 화학식 13(3) | 30 | 70 | - | 30 | 0.250 | |
실시예 1-4 | 화학식 14(5) | 30 | 70 | - | 42 | 0.156 | |
실시예 1-5 | 화학식 14(8) | 30 | 70 | - | 35 | 0.146 | |
실시예 1-6 | 화학식 15(1) | 30 | 70 | - | 68 | 0.203 | |
비교예 1-1 | - | 30 | 70 | LiPF6:1 | - | 28 | 0.253 |
비교예 1-2 | - | 30 | 70 | 화학식 9(4) | 29 | 0.254 | |
비교예 1-3 | - | 30 | 70 | 화학식 13(3) | 27 | 0.262 |
음극 | 전해액 | 방전 용량 유지율(%) |
팽창 (mm) |
||||||||
피막 | 용매 (중량%) |
전해질염(mol/kg) | |||||||||
EC | PC | DEC | FEC | DFEC | DFDMC | VC | |||||
실시예1-1 | 화학식 9(4) |
30 | - | 70 | - | - | - | - | LiPF6:1 | 63 | 0.136 |
실시예2-1 | 10 | 20 | 70 | - | - | - | - | 65 | 0.128 | ||
실시예2-2 | - | - | 70 | 30 | - | - | - | 85 | 0.898 | ||
실시예2-3 | 10 | 10 | 70 | 10 | - | - | - | 82 | 0.863 | ||
실시예2-4 | 10 | - | 70 | - | 20 | - | - | 87 | 0.873 | ||
실시예2-5 | 10 | 10 | 70 | - | 10 | - | - | 87 | 0.886 | ||
실시예2-6 | - | 30 | 50 | 10 | 10 | - | - | 88 | 0.860 | ||
실시예2-7 | - | - | 65 | 30 | - | 5 | - | 87 | 0.875 | ||
실시예2-8 | 10 | 19 | 70 | - | - | - | 1 | 67 | 0.122 | ||
실시예2-9 | 10 | 10 | 70 | - | - | - | 10 | 70 | 0.256 | ||
비교예1-1 | - | 30 | - | 70 | - | - | - | - | LiPF6:1 | 28 | 0.253 |
비교예2-1 | - | - | 70 | 30 | - | - | - | 65 | 1.806 | ||
비교예2-2 | 10 | - | 70 | - | 20 | - | - | 67 | 1.868 |
음극 | 전해액 | 방전 용량 유지율 (%) |
팽창 (mm) |
||||||
피막 | 용매 (중량%) |
전해질염 (mol/kg) |
그외 (중량%) |
||||||
EC | DEC | FEC | |||||||
실시예1-1 | 화학식 9(4) | 30 | 70 | - | LiPF6: 1 | - | 63 | 0.136 | |
실시예2-2 | - | 70 | 30 | - | 85 | 0.898 | |||
실시예3-1 | - | 70 | 30 | LiPF6: 0.9 | LiBF4: 0.1 | - | 85 | 0.832 | |
실시예3-2 | 30 | 70 | - | LiPF6: 0.9 | 화학식 26(6): 0.1 |
- | 64 | 0.128 | |
실시예3-3 | 30 | 70 | - | LiPF6: 0.9 | 화학식 27(2): 0.1 |
- | 65 | 0.127 | |
실시예3-4 | - | 70 | 30 | LiPF6: 0.9 | 화학식 32(2): 0.1 |
- | 86 | 0.129 | |
실시예3-5 | - | 70 | 30 | LiPF6: 1 | PRS: 1 | 85 | 0.883 | ||
실시예3-6 | - | 70 | 30 | SCAH: 1 | 87 | 0.886 | |||
실시예3-7 | - | 70 | 30 | SBAH: 1 | 88 | 0.877 | |||
비교예1-1 | - | 30 | 70 | - | LiPF6: 1 | - | 28 | 0.253 | |
비교예 3 | 30 | 70 | - | PRS: 1 | 25 | 0.140 |
음극 | 전해액 | 방전 용량 유지율 (%) |
팽창 (mm) |
|||||
산화물 함유막 |
금속 재료 |
피막 | 용매 (중량%) |
전해질염(mol/kg) | ||||
DEC | FEC | |||||||
실시예2-2 | - | - | 화학식 9(4) | 70 | 30 | LiPF6: 1 | 85 | 0.898 |
실시예4-1 | - | - | 화학식 9(4) + 설포프로피온산 마그네슘 |
70 | 30 | 88 | 0.122 | |
실시예4-2 | SiO2 | - | 화학식 9(4) | 70 | 30 | 90 | 0.124 | |
실시예4-3 | SiO2 | Co | 화학식 9(4) | 70 | 30 | 92 | 0.128 | |
비교예2-1 | - | - | - | 70 | 30 | LiPF6: 1 | 65 | 1.806 |
비교예4-1 | SiO2 | - | - | 70 | 30 | 88 | 1.235 | |
비교예4-2 | SiO2 | Co | - | 70 | 30 | 90 | 1.256 |
음극 | 전해액 | 방전 용량 유지율 (%) |
팽창 (mm) |
||||
피막 | 용매 (중량%) |
전해질염(mol/kg) | 그외 | ||||
EC | DEC | ||||||
실시예5-1 | 화학식9(4) | 30 | 70 | LiPF6:1 | - | 60 | 0.125 |
실시예5-2 | 화학식9(8) | 30 | 70 | - | 28 | 0.115 | |
실시예5-3 | 화학식 13(3) |
30 | 70 | - | 27 | 0.230 | |
실시예5-4 | 화학식 14(5) |
30 | 70 | - | 40 | 0.146 | |
실시예5-5 | 화학식 14(8) |
30 | 70 | - | 32 | 0.126 | |
실시예5-6 | 화학식 15(1) |
30 | 70 | - | 64 | 0.198 | |
비교예5-1 | - | 30 | 70 | LiPF6:1 | - | 25 | 0.243 |
비교예5-2 | - | 30 | 70 | 화학식 9(4) | 26 | 0.235 | |
비교예5-3 | - | 30 | 70 | 화학식 13(3) | 26 | 0.256 |
음극 | 전해액 | 방전 용량 유지율 (%) |
팽창 (mm) |
||||||||
피막 | 용매 (중량%) |
전해질염(mol/kg) | |||||||||
EC | PC | DEC | FEC | DFEC | DFDMC | VC | |||||
실시예5-1 | 화학식9(4) | 30 | - | 70 | - | - | - | - | LiPF6:1 | 60 | 0.125 |
실시예6-1 | 10 | 20 | 70 | - | - | - | - | 62 | 0.118 | ||
실시예6-2 | - | - | 70 | 30 | - | - | - | 83 | 0.890 | ||
실시예6-3 | 10 | 10 | 70 | 10 | - | - | - | 79 | 0.858 | ||
실시예6-4 | 10 | - | 70 | - | 20 | - | - | 84 | 0.863 | ||
실시예6-5 | 10 | 10 | 70 | - | 10 | - | - | 84 | 0.853 | ||
실시예6-6 | - | 30 | 50 | 10 | 10 | - | - | 86 | 0.853 | ||
실시예6-7 | - | - | 65 | 30 | - | 5 | 84 | 0.863 | |||
실시예6-8 | 10 | 19 | 70 | - | - | - | 1 | 65 | 0.120 | ||
실시예6-9 | 10 | 10 | 70 | - | - | - | 10 | 69 | 0.245 | ||
비교예5-1 | - | 30 | - | 70 | - | - | - | - | LiPF6:1 | 25 | 0.243 |
비교예6-1 | - | - | 70 | 30 | - | - | - | 62 | 1.800 | ||
비교예6-2 | 10 | - | 70 | - | 20 | - | - | 63 | 1.858 |
음극 | 전해액 | 방전 용량 유지율 (%) |
팽창 (mm) |
||||||
피막 | 용매 (중량%) |
전해질염 (mol/kg) |
그외 (중량%) |
||||||
EC | DEC | FEC | |||||||
실시예5-1 | 화학식 9(4) | 30 | 70 | - | LiPF6: 1 | - | 60 | 0.125 | |
실시예6-2 | - | 70 | 30 | - | 83 | 0.890 | |||
실시예7-1 | - | 70 | 30 | LiPF6: 0.9 | LiBF4: 0.1 | - | 83 | 0.820 | |
실시예7-2 | 30 | 70 | - | LiPF6: 0.9 | 화학식 26(6): 0.1 | - | 61 | 0.118 | |
실시예7-3 | 30 | 70 | - | LiPF6: 0.9 | 화학식 27(2): 0.1 | - | 63 | 0.117 | |
실시예7-4 | - | 70 | 30 | LiPF6: 0.9 | 화학식 32(2): 0.1 | - | 83 | 0.119 | |
실시예7-5 | - | 70 | 30 | LiPF6: 1 | PRS: 1 | 83 | 0.873 | ||
실시예7-6 | - | 70 | 30 | SCAH: 1 | 83 | 0.875 | |||
실시예7-7 | - | 70 | 30 | SBAH: 1 | 86 | 0.850 | |||
비교예5-1 | - | 30 | 70 | - | LiPF6: 1 | - | 25 | 0.243 | |
비교예7 | 30 | 70 | - | PRS: 1 | 20 | 0.126 |
음극 | 전해액 | 방전 용량 유지율 (%) |
팽창 (mm) |
|||||
산화물 함유막 |
금속 재료 |
피막 | 용매 (중량%) |
전해질염 (mol/kg) |
||||
DEC | FEC | |||||||
실시예6-2 | - | - | 화학식 9(4) | 70 | 30 | LiPF6: 1 | 83 | 0.890 |
실시예 8 | - | - | 화학식 9(4) + 설포프로피온산 마그네슘 |
70 | 30 | 86 | 0.115 | |
비교예6-1 | - | - | - | 70 | 30 | LiPF6: 1 | 62 | 1.800 |
1,22A,34A : 음극 집전체 2,22B,34B : 음극 활물질층
3,22C,34C : 피막 11,31 : 전지캔
12,13 : 절연판 14 : 전지덮개
15 : 안전밸브기구 15A : 디스크판
16 : 열감저항소자 17 : 개스킷
20,30 : 나선으로 감긴 전극체 21,33 : 양극
21A,33A : 양극 집전체 21B,33B : 양극 활물질층
22,34 : 음극 23,35 : 세퍼레이터
24 : 센터 핀 25,31 : 양극 리드
26,32 : 음극 리드 36 : 전해질
37 : 보호 테이프 40 : 외장 부재
41 : 밀착 필름 201 : 음극 활물질 입자
202 : 산화물 함유막 204(204A,204B) : 간극
205 : 공극 206 : 금속재료
Claims (13)
- 양극 및 음극과 함께 전해액을 구비하고,
상기 음극은, 음극 집전체에 설치된 음극 활물질층 위에 피막을 갖고,
상기 피막은, 화학식 5 내지 8의 각각으로 나타내는 금속염 중 적어도 1종을 함유하고,
상기 화학식 5 내지 8의 각각으로 나타내는 금속염은, 화학식 9(4), 9(8), 13(3), 14(5), 14(8), 15(1)에 각각 나타낸 금속염 중 적어도 1종이고,
상기 음극 활물질층은, 규소의 단체, 합금 및 화합물 및 주석의 단체, 합금 및 화합물 중 적어도 1종을 함유하는 음극 활물질을 포함하는, 리튬 2차전지.
[화학식 5]
(R1은 (a1 + b1 + c1)가의 사슬 모양의 포화 탄화 수소기, 사슬 모양의 불포화 탄화 수소기, 고리모양의 포화 탄화 수소기, 고리 모양의 불포화 탄화 수소기, 또는 그것들을 할로겐화한 기이다. M1은 금속 원소이다. al, b1, c1, d1, e1 및 f1은 1이상의 정수이다.
[화학식 6]
(R2는 (a2 + b2)가의 사슬 모양의 포화 탄화 수소기, 사슬 모양의 불포화 탄화 수소기, 고리 모양의 포화 탄화 수소기, 또는 그것들을 할로겐화한 기이다. M2는 금속 원소이다. a2, b2, c2, d2 및 e2는 1이상의 정수이다.
[화학식 7]
(R3는 (a3 + b3)가의 사슬 모양의 포화 탄화 수소기, 사슬 모양의 불포화 탄화 수소기, 고리 모양의 포화 탄화 수소기, 또는 그것들을 할로겐화한 기이다. M3는 금속 원소이다. a3, b3, c3, d3 및 e3는 1이상의 정수이다.
[화학식 8]
(R4은 (a4 + b4 + c4)가의 사슬 모양의 포화 탄화 수소기, 사슬 모양의 불포화 탄화 수소기, 고리모양의 포화 탄화 수소기, 고리 모양의 불포화 탄화 수소기, 또는 그것들을 할로겐화한 기이다. M4은 금속 원소이다. a4, b4, c4, d4, e4 및 f4은 1이상의 정수이다.
[화학식 9(4)]
[화학식 9(8)]
[화학식 13(3)]
[화학식 14(5)]
[화학식 14(8)]
[화학식 15(1)]
- 제 1항에 있어서,
상기 M1, M2, M3 및 M4는 알칼리 금속 원소 또는 알칼리토류 금속 원소인, 리튬 2차전지.
- 삭제
- 제 1항에 있어서,
상기 피막은, 상기 화학식 5 내지 8의 각각으로 나타낸 금속염에 해당하는 것을 제외하고, 알칼리 금속염 및 알칼리토류 금속 원소 중 적어도 1종을 함유하는, 리튬 2차전지.
- 제 1항에 있어서,
상기 음극 활물질층은, 복수의 음극 활물질 입자를 갖는 동시에, 상기 음극 활물질 입자의 표면을 피복하는 산화물 함유막을 갖는, 리튬 2차전지.
- 제 5항에 있어서,
상기 산화물 함유막은, 규소, 게르마늄 및 주석 중 적어도 1종의 산화물을 함유하는, 리튬 2차전지.
- 제 1항에 있어서,
상기 음극 활물질층은, 복수의 음극 활물질 입자를 갖는 동시에, 상기 음극 활물질 입자 간의 간극에 전극반응 물질과 합금화하지 않는 금속재료를 갖는, 리튬 2차전지.
- 제 7항에 있어서,
상기 음극 활물질 입자는, 그 입자내에 다층 구조를 갖고, 상기 음극 활물질층은, 상기 음극 활물질 입자 내의 간극에 상기 금속재료를 갖는, 리튬 2차전지.
- 제 8항에 있어서,
상기 금속재료는, 철, 코발트, 니켈, 아연 및 구리 중 적어도 1종인, 리튬 2차전지.
- 삭제
- 리튬 2차전지에 사용함과 동시에, 음극 집전체에 설치된 음극 활물질층 위에 피막을 갖고,
상기 피막은, 화학식 5 내지 8의 각각으로 나타내는 금속염 중 적어도 1종을 함유하고,
상기 화학식 5 내지 8의 각각으로 나타내는 금속염은, 화학식 9(4), 9(8), 13(3), 14(5), 14(8), 15(1)에 각각 나타낸 금속염 중 적어도 1종이고,
상기 음극 활물질층은, 규소의 단체, 합금 및 화합물 및 주석의 단체, 합금 및 화합물 중 적어도 1종을 함유하는 음극 활물질을 포함하는, 음극.
[화학식 5]
R1은 (a1 + b1 + c1)가의 사슬 모양의 포화 탄화 수소기, 사슬 모양의 불포화 탄화 수소기, 고리모양의 포화 탄화 수소기, 고리 모양의 불포화 탄화 수소기, 또는 그것들을 할로겐화한 기이다. M1은 금속 원소이다. al, b1, c1, d1, e1 및 f1은 1이상의 정수이다.
[화학식 6]
(R2는 (a2 + b2)가의 사슬 모양의 포화 탄화 수소기, 사슬 모양의 불포화 탄화 수소기, 고리 모양의 포화 탄화 수소기, 또는 그것들을 할로겐화한 기이다. M2는 금속 원소이다. a2, b2, c2, d2 및 e2는 1이상의 정수이다.
[화학식 7]
(R3는 (a3 + b3)가의 사슬 모양의 포화 탄화 수소기, 사슬 모양의 불포화 탄화 수소기, 고리 모양의 포화 탄화 수소기, 또는 그것들을 할로겐화한 기이다. M3는 금속 원소이다. a3, b3, c3, d3 및 e3는 1이상의 정수이다.
[화학식 8]
(R4은 (a4 + b4 + c4)가의 사슬 모양의 포화 탄화 수소기, 사슬 모양의 불포화 탄화 수소기, 고리모양의 포화 탄화 수소기, 고리 모양의 불포화 탄화 수소기, 또는 그것들을 할로겐화한 기이다. M4은 금속 원소이다. a4, b4, c4, d4, e4 및 f4은 1이상의 정수이다.
[화학식 9(4)]
[화학식 9(8)]
[화학식 13(3)]
[화학식 14(5)]
[화학식 14(8)]
[화학식 15(1)]
- 삭제
- 양극 및 음극과 함께 전해액을 함유하는 리튬 2차전지를 구비하고,
상기 음극은, 음극 집전체에 설치된 음극 활물질층 위에 피막을 갖고,
상기 피막은, 화학식 5 내지 8의 각각으로 나타내는 금속염 중 적어도 1종을 함유하고,
상기 화학식 5 내지 8의 각각으로 나타내는 금속염은, 화학식 9(4), 9(8), 13(3), 14(5), 14(8), 15(1)에 각각 나타낸 금속염 중 적어도 1종이고,
상기 음극 활물질층은, 규소의 단체, 합금 및 화합물 및 주석의 단체, 합금 및 화합물 중 적어도 1종을 함유하는 음극 활물질을 포함하는, 전자기기.
[화학식 5]
R1은 (a1 + b1 + c1)가의 사슬 모양의 포화 탄화 수소기, 사슬 모양의 불포화 탄화 수소기, 고리모양의 포화 탄화 수소기, 고리 모양의 불포화 탄화 수소기, 또는 그것들을 할로겐화한 기이다. M1은 금속 원소이다. al, b1, c1, d1, e1 및 f1은 1이상의 정수이다.
[화학식 6]
(R2는 (a2 + b2)가의 사슬 모양의 포화 탄화 수소기, 사슬 모양의 불포화 탄화 수소기, 고리 모양의 포화 탄화 수소기, 또는 그것들을 할로겐화한 기이다. M2는 금속 원소이다. a2, b2, c2, d2 및 e2는 1이상의 정수이다.
[화학식 7]
(R3는 (a3 + b3)가의 사슬 모양의 포화 탄화 수소기, 사슬 모양의 불포화 탄화 수소기, 고리 모양의 포화 탄화 수소기, 또는 그것들을 할로겐화한 기이다. M3는 금속 원소이다. a3, b3, c3, d3 및 e3는 1이상의 정수이다.
[화학식 8]
(R4은 (a4 + b4 + c4)가의 사슬 모양의 포화 탄화 수소기, 사슬 모양의 불포화 탄화 수소기, 고리모양의 포화 탄화 수소기, 고리 모양의 불포화 탄화 수소기, 또는 그것들을 할로겐화한 기이다. M4은 금속 원소이다. a4, b4, c4, d4, e4 및 f4은 1이상의 정수이다.
[화학식 9(4)]
[화학식 9(8)]
[화학식 13(3)]
[화학식 14(5)]
[화학식 14(8)]
[화학식 15(1)]
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