KR101336078B1 - 출력 밀도 특성이 향상된 고출력의 리튬 이차전지 - Google Patents
출력 밀도 특성이 향상된 고출력의 리튬 이차전지 Download PDFInfo
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Abstract
Description
Claims (18)
- 양극 활물질로서 하기 화학식 1로 표시되는 층상구조의 제 1 양극 활물질과 화학식 2로 표시되는 스피넬 구조의 제 2 양극 활물질을 포함하고 있고, 상기 제 2 양극 활물질의 함량이 양극 활물질 전체 중량을 기준으로 40 내지 100 중량%인 양극;
음극 활물질로서 용량 대비 비표면적이 0.007 내지 0.01 m2/mAh인 제 1 흑연과 용량 대비 비표면적이 0.005 내지 0.013 m2/mAh인 제 2 흑연의 혼합물을 포함하는 음극; 및
분리막;
을 포함하는 것을 특징으로 하는 고출력 리튬 이차전지:
Lix(NivMnwCoyMz)O2-tAt (1)
상기 식에서,
0.8<x≤1.3, 0≤v≤0.9, 0≤w≤0.9, 0≤y≤0.9, 0≤z≤0.9, x+v+w+y+z=2, 0≤t<0.2;
M은 +2가 내지 +4가 산화수의 하나 이상의 금속 또는 전이금속 양이온이고;
A는 -1 또는 -2가의 음이온이다.
LiaMn2-bMbO4-cAc (2)
상기 식에서,
0.8<a≤1.3, 0≤b≤0.5, 0≤c≤0.3;
M는 +2가 내지 +4가 산화수의 하나 이상의 금속 또는 전이금속 양이온이고;
A는 -1 또는 -2가의 음이온이다. - 삭제
- 제 1 항에 있어서, 상기 제 1 흑연은 1.4 내지 1.6g/cc의 분체밀도에서 분체 전도도가 100 S/cm 이상 내지 1000 S/cm 미만인 것을 특징으로 하는 고출력 리튬 이차전지.
- 제 3 항에 있어서, 상기 제 1 흑연은 표면이 개질된 흑연으로서 XRD 데이터의 2θ = 43° (101)면의 능면정체 피크(rhombohedral peak)에서 3R 피크와 2H 피크가 구별되어 나타나는 것을 특징으로 하는 고출력 리튬 이차전지.
- 제 1 항에 있어서, 상기 제 2 흑연은 1.4 내지 1.6g/cc의 분체밀도에서 분체 전도도가 10 S/cm 이상 내지 200 S/cm 미만인 것을 특징으로 하는 고출력 리튬 이차전지.
- 제 5 항에 있어서, 상기 제 2 흑연은 XRD 데이터의 2θ = 43° (101)면의 능면정체 피크(rhombohedral peak)에서 2H 피크가 나타나는 것을 특징으로 하는 고출력 리튬 이차전지.
- 제 1 항에 있어서, 상기 제 1 양극 활물질은 용량 대비 평균입경이 0.03 내지 0.1 ㎛/mAh인 것을 특징으로 하는 고출력 리튬 이차전지.
- 제 7 항에 있어서, 상기 제 1 양극 활물질은 2.65 내지 2.85 g/cc의 분체밀도에서 분체 전도도가 1ⅹ10-3 S/cm 이상 내지 10ⅹ10-3 S/cm 미만인 것을 특징으로 하는 고출력 리튬 이차전지.
- 제 1 항에 있어서, 상기 제 2 양극 활물질은 용량 대비 평균입경이 0.1 내지 0.2 ㎛/mAh인 것을 특징으로 하는 고출력 리튬 이차전지.
- 제 9 항에 있어서, 상기 제 2 양극 활물질은 2.65 내지 2.85 g/cc의 분체밀도에서 분체 전도도가 1ⅹ10-5 S/cm 이상 내지 10ⅹ10-5 S/cm 미만인 것을 특징으로 하는 고출력 리튬 이차전지.
- 제 1 항에 있어서, 상기 화학식 1에서 M은 Al, Mg 및 Ti로 이루어진 군에서 선택되는 하나 이상이고, 상기 화학식 2에서 M'는 Co, Mn, Ni, Al, Mg 및 Ti로 이루어진 군에서 선택되는 하나 이상인 것을 특징으로 하는 고출력 리튬 이차전지.
- 제 1 항에 있어서, 상기 화학식 1 및 2에서 A 및 A'는 서로 독립적으로 할로겐, S 및 N으로 이루어진 군에서 선택되는 하나 이상인 것을 특징으로 하는 고출력 리튬 이차전지.
- 제 1 항에 있어서, 상기 리튬 이차전지는 부피 대비 용량이 0.03 내지 0.05 Ah/cm3 및 부피 대비 에너지가 0.1 내지 0.2 Wh/cm3인 것을 특징으로 하는 고출력 리튬 이차전지.
- 제 1 항에 있어서, 상기 분리막은 유무기 복합 분리막인 것을 특징으로 하는 고출력 리튬 이차전지.
- 제 1 항에 따른 리튬 이차전지를 단위전지로 포함하는 것을 특징으로 하는 전지모듈.
- 제 15 항에 따른 전지모듈을 전원으로 사용하는 전기자동차.
- 제 15 항에 따른 전지모듈을 전원으로 사용하는 전력저장장치.
- 제 15 항에 따른 전지모듈을 전원으로 사용하는 하이브리드 전기자동차.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020110048580 | 2011-05-23 | ||
| KR20110048580 | 2011-05-23 |
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| Publication Number | Publication Date |
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| KR20120130712A KR20120130712A (ko) | 2012-12-03 |
| KR101336078B1 true KR101336078B1 (ko) | 2013-12-03 |
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| US (1) | US9385372B2 (ko) |
| EP (1) | EP2688127B1 (ko) |
| JP (1) | JP6339008B2 (ko) |
| KR (1) | KR101336078B1 (ko) |
| CN (1) | CN103518277B (ko) |
| WO (1) | WO2012161477A2 (ko) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101336076B1 (ko) | 2011-05-23 | 2013-12-03 | 주식회사 엘지화학 | 출력 밀도 특성이 향상된 고출력의 리튬 이차전지 |
| WO2012161479A2 (ko) | 2011-05-23 | 2012-11-29 | 주식회사 엘지화학 | 출력 밀도 특성이 향상된 고출력의 리튬 이차전지 |
| WO2012161480A2 (ko) | 2011-05-23 | 2012-11-29 | 주식회사 엘지화학 | 출력 밀도 특성이 향상된 고출력의 리튬 이차전지 |
| CN103548188B (zh) | 2011-05-23 | 2016-03-30 | 株式会社Lg化学 | 具有增强的能量密度特性的高能量密度锂二次电池 |
| WO2012161476A2 (ko) | 2011-05-23 | 2012-11-29 | 주식회사 엘지화학 | 에너지 밀도 특성이 향상된 고에너지 밀도의 리튬 이차전지 |
| KR101336070B1 (ko) | 2011-07-13 | 2013-12-03 | 주식회사 엘지화학 | 에너지 밀도 특성이 향상된 고 에너지 리튬 이차전지 |
| WO2015046495A1 (ja) * | 2013-09-30 | 2015-04-02 | 日本電気株式会社 | リチウムイオン二次電池の正極材料 |
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| JP2010050079A (ja) * | 2008-03-17 | 2010-03-04 | Sanyo Electric Co Ltd | 非水電解質二次電池 |
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| JPH0660880A (ja) | 1992-08-05 | 1994-03-04 | Hitachi Maxell Ltd | リチウム二次電池 |
| JPH08227714A (ja) | 1995-02-21 | 1996-09-03 | Mitsubishi Pencil Co Ltd | リチウムイオン二次電池負極用炭素材料およびその製造方法 |
| ID18173A (id) * | 1996-05-09 | 1998-03-12 | Matsushita Electric Industrial Co Ltd | Baterai sekunder elektrolit tidak berair |
| JPH1012217A (ja) | 1996-06-26 | 1998-01-16 | Mitsubishi Pencil Co Ltd | リチウムイオン二次電池用負極 |
| JP3493962B2 (ja) * | 1996-08-22 | 2004-02-03 | 松下電器産業株式会社 | リチウムイオン二次電池 |
| JPH1083818A (ja) | 1996-09-06 | 1998-03-31 | Hitachi Ltd | リチウム二次電池 |
| JPH1097870A (ja) | 1996-09-20 | 1998-04-14 | Fuji Elelctrochem Co Ltd | リチウム二次電池 |
| JPH10112318A (ja) | 1996-10-08 | 1998-04-28 | Fuji Elelctrochem Co Ltd | 非水電解液二次電池 |
| JP3722318B2 (ja) | 1996-12-12 | 2005-11-30 | 株式会社デンソー | 二次電池用電極およびその製造方法、並びに非水電解液二次電池 |
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- 2012-05-18 KR KR1020120052879A patent/KR101336078B1/ko active Active
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| EP2688127A4 (en) | 2014-11-26 |
| JP2014517454A (ja) | 2014-07-17 |
| US9385372B2 (en) | 2016-07-05 |
| WO2012161477A3 (ko) | 2013-01-24 |
| US20140120425A1 (en) | 2014-05-01 |
| WO2012161477A2 (ko) | 2012-11-29 |
| CN103518277B (zh) | 2016-03-23 |
| KR20120130712A (ko) | 2012-12-03 |
| EP2688127A2 (en) | 2014-01-22 |
| JP6339008B2 (ja) | 2018-06-06 |
| CN103518277A (zh) | 2014-01-15 |
| EP2688127B1 (en) | 2016-06-15 |
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