KR101666877B1 - 리튬 이차 전지 - Google Patents
리튬 이차 전지 Download PDFInfo
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- KR101666877B1 KR101666877B1 KR1020110104093A KR20110104093A KR101666877B1 KR 101666877 B1 KR101666877 B1 KR 101666877B1 KR 1020110104093 A KR1020110104093 A KR 1020110104093A KR 20110104093 A KR20110104093 A KR 20110104093A KR 101666877 B1 KR101666877 B1 KR 101666877B1
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- 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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- H01M10/05—Accumulators with non-aqueous electrolyte
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- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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Abstract
Description
도 2은 실시예 및 비교예에 따라 제조된 고전압 리튬 이차 전지의 고온 수명 특성을 나타낸 그래프이다.
도 3은 비교예에 따라 제조된 저전압 리튬 이차 전지의 고온 수명 특성을 나타낸 그래프이다.
| 실시예 3 (제조예 3) |
비교예 1 (제조예 4) |
|
| 극판 접착력 (gf/mm) | 3.21 | 0.80 |
| 초기용량 (mAh/g) | 초기방전용량효율(%) | 50회 싸이클 용량 유지율(%) | |
| 실시예 1 | 118.6 | 82.1 | 62.1 |
| 실시예 2 | 118.2 | 81.3 | 69.4 |
| 실시예 3 | 111.6 | 74.6 | 75.1 |
| 비교예 1 | 114.6 | 79.1 | 12.0 |
113: 세퍼레이터 114: 양극
120: 전지 용기 140: 봉입 부재
Claims (8)
- 음극 활물질을 포함하는 음극;
4.3V 이상의 만충전 전압용 양극활물질, 폴리아크릴로니트릴 및 옥살산을 포함하는 양극; 및
비수 전해질을 포함하며,
상기 양극활물질은 하기 화학식 1로 표시되는 화합물인
리튬 이차 전지:
[화학식 1]
Li1+x(M1)yMn2-y-z(M2)zO4+w
상기 식에서,
0≤x<0.2, 0.4≤y≤0.6, 0≤z≤0.2, 0≤w≤0.1이고,
M1은 Cr, Fe, Co, Ni, Cu, Zr, Ti, B 및 이들의 조합으로 이루어진 군으로부터 선택된 금속 이온이고,
M2는 Al, Ti, Mg, Zn 및 이들의 조합으로 이루어진 군으로부터 선택된 금속 이온이다. - 삭제
- 삭제
- 제1항에 있어서,
상기 양극은 집전체와 양극 활물질 층을 포함하고,
상기 양극 활물질 층은 양극 활물질 층 전체 100 중량% 중 폴리아크릴로니트릴 1 내지 5 중량% 포함하는 리튬 이차 전지. - 삭제
- 제1항에 있어서,
상기 양극은 폴리비닐알콜, 카르복시메틸셀룰로즈, 히드록시프로필셀룰로즈, 디아세틸셀룰로즈, 폴리비닐클로라이드, 카르복실화된 폴리비닐클로라이드, 폴리비닐플루오라이드, 에틸렌 옥사이드를 포함하는 폴리머, 폴리비닐피롤리돈, 폴리우레탄, 폴리테트라플루오로에틸렌, 폴리비닐리덴플로라이드-테트라플루오로에틸렌 코폴리머, 폴리비닐리덴플루오라이드, 폴리아크릴로니트릴-알킬(메타)아크릴레이트(알킬은 탄소수 1 내지 10 알킬기임), 폴리에틸렌, 폴리프로필렌, 스티렌-부타디엔 러버, 아크릴레이티드 스티렌-부타디엔 러버, 에폭시 수지, 나일론 및 이들의 조합에서 선택된 추가적인 바인더를 더 포함하는 리튬 이차 전지. - 제6항에 있어서,
상기 폴리아크릴로니트릴 및 상기 추가적인 바인더는 2:3 내지 3:2의 중량비로 포함되는 리튬 이차 전지. - 제6항에 있어서,
상기 옥살산은 폴리아크릴로니트릴, 상기 옥살산 및 상기 추가적인 바인더의 총량 100 중량% 중 0.1 내지 0.4 중량%의 함량으로 포함되는 리튬 이차 전지.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110104093A KR101666877B1 (ko) | 2011-10-12 | 2011-10-12 | 리튬 이차 전지 |
| US13/523,750 US9123957B2 (en) | 2011-10-12 | 2012-06-14 | Rechargeable lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110104093A KR101666877B1 (ko) | 2011-10-12 | 2011-10-12 | 리튬 이차 전지 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20130039500A KR20130039500A (ko) | 2013-04-22 |
| KR101666877B1 true KR101666877B1 (ko) | 2016-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020110104093A Active KR101666877B1 (ko) | 2011-10-12 | 2011-10-12 | 리튬 이차 전지 |
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| Country | Link |
|---|---|
| US (1) | US9123957B2 (ko) |
| KR (1) | KR101666877B1 (ko) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9325000B2 (en) * | 2012-04-18 | 2016-04-26 | Lg Chem, Ltd. | Cathode active material and the secondary battery comprising the same |
| KR102283794B1 (ko) * | 2014-11-19 | 2021-07-30 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 양극 및 이를 포함하는 리튬 이차 전지 |
| WO2018154787A1 (ja) * | 2017-02-27 | 2018-08-30 | 日立化成株式会社 | エネルギーデバイス電極用複合樹脂、エネルギーデバイス電極形成用組成物、エネルギーデバイス用正極及びエネルギーデバイス |
| KR102643520B1 (ko) | 2017-10-20 | 2024-03-05 | 주식회사 엘지에너지솔루션 | 리튬 이차전지용 양극 및 이를 포함하는 리튬 이차전지 |
| CN118888843A (zh) * | 2018-08-14 | 2024-11-01 | 魁北克电力公司 | 包括产生m2+金属离子的金属基阴极材料的锂离子电池中的电解质和阴极材料的添加剂 |
| WO2024192580A1 (zh) * | 2023-03-17 | 2024-09-26 | 宁德新能源科技有限公司 | 一种二次电池和电子装置 |
| CN116053407B (zh) * | 2023-03-31 | 2023-06-20 | 宁德新能源科技有限公司 | 二次电池及电子装置 |
| KR20240173071A (ko) * | 2023-06-02 | 2024-12-10 | 삼성에스디아이 주식회사 | 양극 조성물, 양극 및 리튬 이차 전지 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3287376B2 (ja) | 1994-03-16 | 2002-06-04 | エフ・ディ−・ケイ株式会社 | リチウム二次電池とその製造方法 |
| US6034566A (en) | 1995-11-07 | 2000-03-07 | Takeshi Ikeda | Tuning amplifier |
| JP3995791B2 (ja) * | 1998-03-26 | 2007-10-24 | Tdk株式会社 | 非水電解質電池用電極の製造方法 |
| KR100560533B1 (ko) * | 1999-07-16 | 2006-03-15 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 바인더 및 그를 포함하는 리튬 이차 전지 |
| KR100385700B1 (ko) * | 2000-02-16 | 2003-05-27 | 주식회사 엘지화학 | 고온 싸이클 특성이 우수한 비수계 2차 전지 |
| KR20030012557A (ko) | 2001-08-01 | 2003-02-12 | 이병우 | 옥살레이트 침전법을 이용한 리튬 이차전지의 양극활물질분말의 제조방법 |
| KR20070065803A (ko) | 2005-12-20 | 2007-06-25 | 소니 가부시끼 가이샤 | 정극 활물질과 리튬 이온 2차 전지 |
| JP2007194202A (ja) | 2005-12-20 | 2007-08-02 | Sony Corp | リチウムイオン二次電池 |
| KR101201170B1 (ko) * | 2006-03-21 | 2012-11-13 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 양극과 이를 포함하는 리튬 이차전지 및리튬 이차전지의 제조방법 |
| KR101156614B1 (ko) | 2007-10-24 | 2012-06-15 | 주식회사 엘지화학 | 고중합도 폴리아크릴로니트릴 바인더를 포함한 전극재료,그 제조방법 및 그 전극재료를 포함하는 리튬 이차전지 |
| KR101041829B1 (ko) | 2008-04-16 | 2011-06-17 | 주식회사 엘지화학 | 폴리아크릴로니트릴-아크릴산 공중합체 및 바인더를 포함한음극 재료 조성물, 그 제조방법 및 그 음극 재료 조성물을포함하는 리튬 이차 전지 |
| US20120251884A1 (en) * | 2011-04-04 | 2012-10-04 | Basf Se | Electrochemical cells comprising ion exchangers |
-
2011
- 2011-10-12 KR KR1020110104093A patent/KR101666877B1/ko active Active
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- 2012-06-14 US US13/523,750 patent/US9123957B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20130095382A1 (en) | 2013-04-18 |
| KR20130039500A (ko) | 2013-04-22 |
| US9123957B2 (en) | 2015-09-01 |
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