KR101835586B1 - 복합양극활물질, 이를 채용한 양극 및 리튬 전지 - Google Patents
복합양극활물질, 이를 채용한 양극 및 리튬 전지 Download PDFInfo
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- KR101835586B1 KR101835586B1 KR1020120092537A KR20120092537A KR101835586B1 KR 101835586 B1 KR101835586 B1 KR 101835586B1 KR 1020120092537 A KR1020120092537 A KR 1020120092537A KR 20120092537 A KR20120092537 A KR 20120092537A KR 101835586 B1 KR101835586 B1 KR 101835586B1
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Abstract
<화학식 1>
(1-x)LiM1aM2bM3cO2 - xLi2M4O3
상기 식에서, M1, M2 및 M3가 서로 독립적으로 Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Al, Mg, Zr 및 B로 이루어진 군에서 선택되며, M4가 Mn, Ti 및 Zr로 이루어진 군에서 선택되며, M1, M2 및 M3는 서로 다르며, 0.5<x<1, 0<a<1, 0<b<1, 0<c<1, a+b+c=1, 0<[(1-x)×a]/[(1-x)×c+x]≤0.14이다.
Description
도 2는 예시적인 구현예에 따른 리튬전지의 모식도이다.
<도면의 주요 부분에 대한 부호의 설명>
1: 리튬전지 2: 음극
3: 양극 4: 세퍼레이터
5: 전지케이스 6: 캡 어셈블리
방전용량 [mAh/g] |
|
실시예 6 | 240 |
실시예 7 | 245 |
실시예 8 | 248 |
실시예 9 | 251 |
실시예 10 | 253 |
비교예 8 | 89 |
비교예 9 | 231 |
비교예 10 | 223 |
비교예 11 | 220 |
비교예 12 | 209 |
비교예 13 | 193 |
비교예 14 | 95 |
Claims (14)
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 하기 화학식 4로 표시되는 복합양극활물질:
<화학식 4>
Li1+zNipCoqMnrOδ
상기 식에서,
0<z<1, 0<p<1, 0<q<1, 0<r<1, p+q+r=1, 0<p/r≤0.14, 1.9≤δ≤3.0이다. - 제 7 항에 있어서, 0<p<0.5, 0<q<0.5, 0.5≤r<1인 복합양극활물질.
- 제 7 항에 있어서, 0.2<z<1인 복합양극활물질.
- 제 7 항에 있어서, 상기 화학식 4의 화합물이 하기 화학식 5로 표시되는 복합양극활물질:
<화학식 5>
Li1+z'Nip'Coq'Mnr'O2
상기 식에서,
0.2<z'<1, 0<p'<0.8, 0<q'<0.8, 0<r'<0.8, z'+p'+q'+r'=1, 0<p'/r'≤0.14이다. - 제 10 항에 있어서, 0.2<z'<0.5, 0<p'<0.3, 0<q'<0.3, 0.5≤r'<0.8인 복합양극활물질.
- 제 10 항에 있어서, 0.2<z'<0.5, 0<p'<0.2, 0<q'<0.2, 0.5≤r'<0.8인 복합양극활물질.
- 제 7 항 내지 제 12 항 중 어느 한 항에 따른 복합양극활물질을 포함하는 양극.
- 제 13 항에 따른 양극을 포함하는 리튬전지.
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KR1020120092537A KR101835586B1 (ko) | 2012-08-23 | 2012-08-23 | 복합양극활물질, 이를 채용한 양극 및 리튬 전지 |
US13/795,051 US9450241B2 (en) | 2012-08-23 | 2013-03-12 | Composite cathode active material, and cathode and lithium battery including the material |
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KR1020120092537A KR101835586B1 (ko) | 2012-08-23 | 2012-08-23 | 복합양극활물질, 이를 채용한 양극 및 리튬 전지 |
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KR20140026841A KR20140026841A (ko) | 2014-03-06 |
KR101835586B1 true KR101835586B1 (ko) | 2018-03-07 |
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KR102292385B1 (ko) | 2014-11-19 | 2021-08-23 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 양극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지 |
US10903483B2 (en) | 2015-08-27 | 2021-01-26 | Wildcat Discovery Technologies, Inc | High energy materials for a battery and methods for making and use |
CN108736009A (zh) * | 2018-05-29 | 2018-11-02 | 中伟新材料有限公司 | 镍钴锰酸锂三元材料及其制备方法 |
CN109437334A (zh) * | 2018-10-31 | 2019-03-08 | 云南民族大学 | 一种高倍率镍钴共掺杂尖晶石型锰酸锂材料的制备方法 |
CN111430703B (zh) * | 2020-03-18 | 2023-09-22 | 蜂巢能源科技有限公司 | 用于锂离子电池的富锂锰基正极材料及其制备方法、正极片、锂离子电池和电动汽车 |
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US6680143B2 (en) | 2000-06-22 | 2004-01-20 | The University Of Chicago | Lithium metal oxide electrodes for lithium cells and batteries |
US8354191B2 (en) | 2004-04-27 | 2013-01-15 | Mitsubishi Chemical Corporation | Layered lithium nickel manganese cobalt composite oxide powder for material of positive electrode of lithium secondary battery, process for producing the same, positive electrode of lithium secondary battery therefrom, and lithium secondary battery |
JP4529784B2 (ja) | 2004-04-27 | 2010-08-25 | 三菱化学株式会社 | リチウム二次電池正極材料用層状リチウムニッケルマンガンコバルト系複合酸化物粉体及びその製造方法と、それを用いたリチウム二次電池用正極、並びにリチウム二次電池 |
KR101264332B1 (ko) | 2006-09-20 | 2013-05-14 | 삼성에스디아이 주식회사 | 캐소드 활물질 및 이를 채용한 리튬 전지 |
KR101206037B1 (ko) | 2006-12-13 | 2012-11-28 | 삼성에스디아이 주식회사 | 리튬 전지용 캐소드 활물질, 이를 포함하는 캐소드 및 이를채용한 리튬 전지 |
JP5153200B2 (ja) | 2007-04-27 | 2013-02-27 | 三洋電機株式会社 | 非水電解質二次電池及びその製造方法 |
US8389160B2 (en) | 2008-10-07 | 2013-03-05 | Envia Systems, Inc. | Positive electrode materials for lithium ion batteries having a high specific discharge capacity and processes for the synthesis of these materials |
JP2011171150A (ja) | 2010-02-19 | 2011-09-01 | Sony Corp | 正極活物質、正極および非水電解質二次電池 |
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US9450241B2 (en) | 2016-09-20 |
US20140054493A1 (en) | 2014-02-27 |
KR20140026841A (ko) | 2014-03-06 |
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