KR100477744B1 - 유기 전해액 및 이를 채용한 리튬 2차전지 - Google Patents
유기 전해액 및 이를 채용한 리튬 2차전지 Download PDFInfo
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- KR100477744B1 KR100477744B1 KR10-2001-0067622A KR20010067622A KR100477744B1 KR 100477744 B1 KR100477744 B1 KR 100477744B1 KR 20010067622 A KR20010067622 A KR 20010067622A KR 100477744 B1 KR100477744 B1 KR 100477744B1
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- 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
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- 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
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- 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
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- 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
- H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0085—Immobilising or gelification of electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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- 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
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- Condensed Matter Physics & Semiconductors (AREA)
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Abstract
Description
폴리머 흡착제(중량부) | 리튬과 합금형성가능물질(중량부) | 사이클 효율(%) | |
실시예 1 | PEGDME 0.2 | AlI3 0.05 | 92.2 |
실시예 2 | PEGDME 0.29 | AlI3 0.17 | 98.4 |
실시예 3 | PEGDME 1 | AlI3 0.3 | 91.6 |
실시예 4 | PEGDMA 0.2 | AlI3 0.17 | 97.2 |
실시예 5 | PEGDME 0.29 | MgI2 0.05 | 94.9 |
비교예 1 | PEGDME 0.2 | - | 78 |
비교예 2 | - | AlI3 0.05 | 83 |
폴리머 흡착제(중량부) | 리튬과 합금형성가능물질(중량부) | 사이클 효율(%) | |
실시예 6 | PEGDME 0.29 | AlI3 0.17 | 86 |
비교예 3 | PEGDME 0.29 | - | 80 |
비교예 4 | - | AlI3 0.17 | 75 |
비교예 5 | - | - | 61 |
평균 표준 방전 용량(mAh) | 평균 고율(2C) 방전용량 (%):표준대비 | 평균 1C) 방전용량 (%):표준대비 | ||
실시예 1 | 90 | 83 | 91 | |
실시예 2 | 90 | 86 | 95 | |
실시예 3 | 90 | 82 | 90 | |
실시예 4 | 90 | 81 | 88 | |
실시예 5 | 90 | 82 | 89 | |
비교예 1 | 90 | 79 | 83 | |
비교예 2 | 90 | 77 | 82 |
Claims (14)
- 리튬 메탈에 흡착될 수 있는 에틸렌 옥사이드 체인을 가지는 폴리머 흡착제, 리튬과 반응하여 합금을 형성할 수 있는 물질, 리튬염 및 유기용매를 포함하는 것을 특징으로 하는 리튬2차전지용 전해액.
- 제 1항에 있어서, 상기 폴리머 흡착제는 폴리에틸렌 옥사이드 (poly (ethylene)oxide), 폴리에틸렌 글리콜 모노메틸 에테르(poly (ethylenglycol) monomethyl ether), 폴리에틸렌 글리콜 디메틸 에테르(poly (ethylenglycol) dimethyl ether), 폴리에틸렌 글리콜 모노메틸 아크릴레이트 (poly(ethylenglycol) monomethyl acrylate) 및 폴리에틸렌 글리콜 다이메틸 아크릴레이트 (poly (ethylenglycol)dimethyl acrylate)로 이루어진 군에서 선택되는 하나 또는 둘 이상의 혼합물인 것을 특징으로 하는 리튬 2차전지용 전해액.
- 제 2항에 있어서, 상기 폴리머 흡착제의 첨가량이 전체 전해액 100 중량부 당 0.1∼1 중량부인 것을 특징으로 하는 리튬 2차전지용 전해액.
- 제 2항에 있어서, 상기 폴리에틸렌글리콜 디메틸 에테르의 첨가량이 전체 전해액 100중량부 당 0.2∼1 중량부인 것을 특징으로 하는 리튬 2차전지용 전해액.
- 제 2항에 있어서, 상기 폴리머 흡착제의 중량평균 분자량이 200∼2000인 것을 특징으로 하는 리튬 2차전지용 전해액.
- 제 2항에 있어서, 상기 폴리에틸렌 글리콜 디메틸 에테르의 중량평균 분자량이 1000~2000인 것을 특징으로 하는 리튬 2차전지용 전해액.
- 제 1항에 있어서, 상기 리튬과 반응하여 합금을 형성할 수 있는 물질이 알루미늄 아이오다이드(AlI3), 알루미늄 포스페이트(aluminium phophate), 알루미늄 설페이트(aluminium sulfate), 알루미늄 트리플레이트(aluminium triflate), 마그네슘 아이오다이드(magnesium iodide), 마그네슘 클로라이드(magnesium chloride), 마그네슘 브로마이드(magnesium bromide), 마그네슘 퍼클로레이트(magnesium perchlorate), 마그네슘 헥사플루오로포스페이트(magnesium hexafluorophosphate), 마그네슘 트리플레이트(magnesium triflate)로 이루어진 군에서 선택되는 하나 또는 둘 이상의 혼합물인 것을 특징으로 하는 리튬 2차전지용 전해액.
- 제 7항에 있어서, 상기 리튬과 반응하여 합금을 형성할 수 있는 물질의 첨가량이 전체 전해액 100중량부 당 0.01∼0.3 중량부인 것을 특징으로 하는 리튬 2차전지용 전해액.
- 제 7항에 있어서, 상기 알루미늄 아이오다이드의 첨가량이 전체 전해액 100 중량부 당 0.05∼0.3 중량부인 것을 특징으로 하는 리튬 2차전지용 전해액.
- 제 2항 내지 제 6항 중 어느 한 항에 있어서, 상기 폴리에틸렌 글리콜 디메틸 에테르의 첨가량이 전체 전해액 100 중량부 당 0.29 중량부이고, 상기 알루미늄 아이오다이드(AlI3)의 첨가량이 0.17 중량부인 것을 특징으로 하는 리튬 2차전지용 전해액.
- 제 1항에 있어서, 상기 리튬염은 LiPF6, LiBF4, LiClO4, Li(CF3SO 2)2, LiCF3SO3, LiSbF6 및 LiAsF6로 이루어진 군에서 선택되는 어느 하나인 것을 특징으로 하는 리튬 2차전지용 전해액.
- 제 1항에 있어서, 상기 리튬염의 농도는 0.4∼1.5M인 것을 특징으로 하는 리튬 2차전지용 전해액.
- 제 1항에 있어서, 상기 유기용매는 에틸렌카보네이트, 프로필렌카보네이트, 디메틸카보네이트, 디에틸카보네이트, 아세톤, 아세토니트릴, n-메틸-2-피롤리돈 (NMP) 및 이들의 혼합물로 이루어진 군에서 선택되는 어느 하나인 것을 특징으로 하는 리튬 2차전지용 전해액.
- 제 1항 또는 제 13항 중 어느 한 항에 따른 전해액을 사용하여 제조되는 것을 특징으로 하는 리튬 2차전지.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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KR10-2001-0067622A KR100477744B1 (ko) | 2001-10-31 | 2001-10-31 | 유기 전해액 및 이를 채용한 리튬 2차전지 |
US10/283,334 US7087349B2 (en) | 2001-10-31 | 2002-10-30 | Organic electrolytic solution and lithium secondary battery employing the same |
CNB021479224A CN1320685C (zh) | 2001-10-31 | 2002-10-30 | 有机电解液以及使用该有机电解液的锂二次电池 |
JP2002315834A JP3643825B2 (ja) | 2001-10-31 | 2002-10-30 | リチウム2次電池用有機電解液及びこれを使用したリチウム2次電池 |
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KR10-2001-0067622A KR100477744B1 (ko) | 2001-10-31 | 2001-10-31 | 유기 전해액 및 이를 채용한 리튬 2차전지 |
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Publication Number | Publication Date |
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KR20030035521A KR20030035521A (ko) | 2003-05-09 |
KR100477744B1 true KR100477744B1 (ko) | 2005-03-18 |
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KR10-2001-0067622A KR100477744B1 (ko) | 2001-10-31 | 2001-10-31 | 유기 전해액 및 이를 채용한 리튬 2차전지 |
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US (1) | US7087349B2 (ko) |
JP (1) | JP3643825B2 (ko) |
KR (1) | KR100477744B1 (ko) |
CN (1) | CN1320685C (ko) |
Cited By (2)
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KR20220112554A (ko) | 2021-02-04 | 2022-08-11 | 이미경 | Ffc용 커넥터 |
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Also Published As
Publication number | Publication date |
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CN1320685C (zh) | 2007-06-06 |
JP2003151626A (ja) | 2003-05-23 |
JP3643825B2 (ja) | 2005-04-27 |
US20030124433A1 (en) | 2003-07-03 |
CN1416191A (zh) | 2003-05-07 |
KR20030035521A (ko) | 2003-05-09 |
US7087349B2 (en) | 2006-08-08 |
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