KR19990085715A - 리튬 이차 전지용 전해액 - Google Patents
리튬 이차 전지용 전해액 Download PDFInfo
- Publication number
- KR19990085715A KR19990085715A KR1019980018309A KR19980018309A KR19990085715A KR 19990085715 A KR19990085715 A KR 19990085715A KR 1019980018309 A KR1019980018309 A KR 1019980018309A KR 19980018309 A KR19980018309 A KR 19980018309A KR 19990085715 A KR19990085715 A KR 19990085715A
- Authority
- KR
- South Korea
- Prior art keywords
- electrolyte
- negative electrode
- battery
- lithium
- electrolyte solution
- 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.)
- Granted
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 34
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 22
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 8
- 239000003960 organic solvent Substances 0.000 claims abstract description 8
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 7
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 19
- 229910001416 lithium ion Inorganic materials 0.000 claims description 19
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 10
- 229910003481 amorphous carbon Inorganic materials 0.000 claims description 7
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 6
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 3
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 3
- 239000007773 negative electrode material Substances 0.000 abstract description 20
- 238000000354 decomposition reaction Methods 0.000 abstract description 8
- 239000011241 protective layer Substances 0.000 abstract description 7
- 230000002441 reversible effect Effects 0.000 abstract description 4
- 238000007086 side reaction Methods 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 13
- 229910052799 carbon Inorganic materials 0.000 description 12
- 239000005486 organic electrolyte Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000002427 irreversible effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 229910021385 hard carbon Inorganic materials 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- 229910021384 soft carbon Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007833 carbon precursor Substances 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 238000009831 deintercalation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000002952 polymeric resin Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 229910013075 LiBF Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910014689 LiMnO Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- -1 Polypara Phenylene Polymers 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000012461 cellulose resin Substances 0.000 description 1
- 239000007841 coal based oil Substances 0.000 description 1
- 239000011300 coal pitch Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- 229910002102 lithium manganese oxide Inorganic materials 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- VROAXDSNYPAOBJ-UHFFFAOYSA-N lithium;oxido(oxo)nickel Chemical compound [Li+].[O-][Ni]=O VROAXDSNYPAOBJ-UHFFFAOYSA-N 0.000 description 1
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical compound [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
초기충전용량(mAh/g) | 초기방전용량(mAh/g) | 효율(%) | 50싸이클후 방전용량(mAh/g) | |
비교예 1 | 451 | 334 | 74 | 298 |
실시에 1 | 435 | 361 | 83 | 337 |
Claims (5)
- 비-이온성 계면활성제;유기 용매; 및리튬염을 포함하는 리튬 이차 전지용 전해액.
- 제 1 항에 있어서, 상기 비-이온성 계면활성제는 폴리에틸렌 글리콜 디메틸에테르 또는 SiPPO인 리튬 이차 전지용 전해액.
- 제 1 항에 있어서, 상기 비-이온성 계면활성제는 상기 전해액에 대하여 0.01∼5 중량%의 양으로 포함되는 것인 리튬 이차 전지용 전해액.
- 제 1 항에 있어서, 상기 유기 용매는 1,2-디메톡시에탄, 프로필렌 카보네이트, 에틸렌 카보네이트, 디메틸 카보네이트, 디에틸 카보네이트, 디에톡시 에탄 및 이들의 혼합물로 이루어진 그룹 중에서 선택되는 것인 리튬 이차 전지용 전해액.
- 제 1 항에 있어서, 상기 전해액은 비정질 탄소를 음극으로 사용하는 전지에 사용되는 것인 리튬 이온 이차 전지용 전해액.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980018309A KR100277786B1 (ko) | 1998-05-21 | 1998-05-21 | 리튬 이차 전지용 전해액 |
JP10242034A JPH11126633A (ja) | 1997-08-30 | 1998-08-27 | Liイオン電池用電解液及びそれを採用したLiイオン電池 |
GB9818922A GB2328786A (en) | 1997-08-30 | 1998-08-28 | Electrolyte for lithium ion battery and lithium ion battery employing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980018309A KR100277786B1 (ko) | 1998-05-21 | 1998-05-21 | 리튬 이차 전지용 전해액 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990085715A true KR19990085715A (ko) | 1999-12-15 |
KR100277786B1 KR100277786B1 (ko) | 2001-02-01 |
Family
ID=65892177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980018309A Expired - Fee Related KR100277786B1 (ko) | 1997-08-30 | 1998-05-21 | 리튬 이차 전지용 전해액 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100277786B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020002194A (ko) * | 2000-04-11 | 2002-01-09 | 모리시타 요이찌 | 비수전해질 이차전지 |
KR100813240B1 (ko) | 2005-02-18 | 2008-03-13 | 삼성에스디아이 주식회사 | 유기 전해액 및 이를 채용한 리튬 전지 |
-
1998
- 1998-05-21 KR KR1019980018309A patent/KR100277786B1/ko not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020002194A (ko) * | 2000-04-11 | 2002-01-09 | 모리시타 요이찌 | 비수전해질 이차전지 |
KR100813240B1 (ko) | 2005-02-18 | 2008-03-13 | 삼성에스디아이 주식회사 | 유기 전해액 및 이를 채용한 리튬 전지 |
Also Published As
Publication number | Publication date |
---|---|
KR100277786B1 (ko) | 2001-02-01 |
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