KR101918719B1 - 리튬 이차전지용 양극 활물질, 이의 제조 방법, 및 이를 포함하는 리튬 이차전지 - Google Patents
리튬 이차전지용 양극 활물질, 이의 제조 방법, 및 이를 포함하는 리튬 이차전지 Download PDFInfo
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Abstract
Description
도 2는 Al/Mo 도핑 전후에 따른 XRD 그래프에 관한 것이다.
도 3은 Al/Mo 도핑 전/후의 초기 충방전 프로파일에 관한 것이다.
도 4는 Al/Mo 도핑 전/후의 상온 수명 특성에 관한 그래프이다.
도 5는 Al/Mo 도핑 전/후의 0.2C 충전/0.1C 방전에 대한 프로파일이다.
도 6은 Al/Mo 도핑 전/후의 상온 수명 특성에 관한 그래프이다.
| a(Å) | c(Å) | c/a | Crystalline size(nm) | I(003)/ I(104) |
R-factor | GOF | |
| 비교예 Li1 .05(Ni0 .8Co0 .1Mn0 .1)O2 |
2.875 | 14.215 | 4.944 | 82.1 | 1.13 | 0.545 | 1.0002 |
| 실시예 Li1 .05(Ni0 .8Co0 .1Mn0 .1)0.995(Al0 .8Mo0 .2)0.005O2 |
2.870 | 14.200 | 4.948 | 86.3 | 1.16 | 0.506 | 1.1075 |
| Li1 .05(Ni0 .8Co0 .1Mn0 .1)O2 | Li1 .05(Ni0 .8Co0 .1Mn0 .1)0.995(Al0 .8Mo0 .2)0.005O2 | |
| 1st charge capacity(mAh/g) | 223.0 | 224.1 |
| 1st discharge capacity(mAh/g) | 198.5 | 200.4 |
| 1st efficiency(%) | 89.0 | 89.4 |
| Li1 .05(Ni0 .8Co0 .1Mn0 .1)O2 | Li1 .05(Ni0 .8Co0 .1Mn0 .1)0.995(Al0 .8Mo0 .2)0.005O2 | ||||
| 방전용량 (mAh/g) |
0.1C | 198.5 | 100% | 200.4 | 100% |
| 1C | 181.4 | 91.4% | 184.5 | 92.1% | |
| 3C | 170.9 | 86.1% | 174.4 | 87.2% | |
| 4C | 166.7 | 84.0% | 171.5 | 85.6% | |
| 5C | 161.0 | 81.1% | 166.8 | 83.2% | |
| 7C | 137.9 | 69.5% | 151.3 | 75.5% | |
| Li1 .05(Ni0 .8Co0 .1Mn0 .1)O2 | Li1 .05(Ni0 .8Co0 .1Mn0 .1)0.995(Al0 .8Mo0 .2)0.005O2 | |
| 1st charge capacity(mAh/g) | 209.0 | 215.9 |
| 1st discharge capacity(mAh/g) | 173.0 | 183.5 |
| 1st efficiency(%) | 82.7 | 85.0 |
| Li1 .05(Ni0 .8Co0 .1Mn0 .1)O2 | Li1 .05(Ni0 .8Co0 .1Mn0 .1)0.995(Al0 .8Mo0 .2)0.005O2 | ||||
| 방전용량 (mAh/g) |
0.1C | 176.3 | 100% | 188.3 | 100% |
| 1C | 157.1 | 89.1% | 171.5 | 91.1% | |
| 2C | 149.1 | 84.6% | 165.4 | 87.8% | |
| 4C | 138.8 | 78.7% | 158.0 | 83.9% | |
Claims (11)
- 리튬 전이금속 복합 산화물, 및
상기 리튬 전이금속 복합 산화물에 도핑된 도핑 금속을 포함하는 리튬 이차전지용 양극 활물질에서,
상기 리튬 이차전지용 양극 활물질은 하기 화학식 1로 표시되며,
상기 도핑 금속은 하기 화학식 1에서 M1 및 M2로 표시되고,
하기 M1은 알루미늄(Al)이고
하기 M2는 몰리브덴(Mo)이며,
상기 알루미늄 및 상기 몰리브덴은 리튬 양이온 자리에 도핑되는 리튬 이차전지용 양극 활물질:
[화학식 1]
Lia(NixCoyMn1-x-y)b(M1 zM2 1-z)cO2
상기 화학식 1에서,
0.95 ≤ a ≤ 1.1이고, 0 < b < 1이고, 0 < c < 0.02이고, 0.5 ≤ x < 1 이고, 0≤ y ≤ 0.2이고, 0.5 ≤ z <1이다.
- 삭제
- 삭제
- 제1항에서,
상기 z는 0.7 이상인 리튬 이차전지용 양극 활물질.
- 제1항에서,
상기 x는 0.8 이상인 이차전지용 양극 활물질.
- 제1항에서,
상기 c는 0.01 이하인 이차전지용 양극 활물질.
- 삭제
- 삭제
- 삭제
- 삭제
- 제1항, 제4항 내지 제6항 중 어느 한 항의 양극 활물질을 포함하는 리튬 이차전지용 양극;
이와 중첩하는 음극;
상기 양극과 상기 음극 사이에 위치하는 분리막 및 전해질을 포함하는 리튬 이차전지.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020160168830A KR101918719B1 (ko) | 2016-12-12 | 2016-12-12 | 리튬 이차전지용 양극 활물질, 이의 제조 방법, 및 이를 포함하는 리튬 이차전지 |
| US16/468,874 US11670766B2 (en) | 2016-12-12 | 2017-12-07 | Positive electrode active material for lithium secondary battery, method for preparing same, and lithium secondary battery comprising same |
| CN201780083220.7A CN110199416B (zh) | 2016-12-12 | 2017-12-07 | 锂二次电池用正极活性物质、其制造方法及包括其的锂二次电池 |
| JP2019531454A JP7039591B2 (ja) | 2016-12-12 | 2017-12-07 | リチウム二次電池用正極活物質、その製造方法、およびそれを含むリチウム二次電池 |
| PCT/KR2017/014321 WO2018110899A1 (ko) | 2016-12-12 | 2017-12-07 | 리튬 이차전지용 양극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차전지 |
| EP17881416.6A EP3553855A4 (en) | 2016-12-12 | 2017-12-07 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME AND LITHIUM SECONDARY BATTERY THEREFOR |
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| US (1) | US11670766B2 (ko) |
| EP (1) | EP3553855A4 (ko) |
| JP (1) | JP7039591B2 (ko) |
| KR (1) | KR101918719B1 (ko) |
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| KR102327530B1 (ko) * | 2018-05-21 | 2021-11-17 | 주식회사 엘지화학 | 이차 전지용 양극 및 이를 포함하는 이차 전지 |
| KR102757221B1 (ko) * | 2018-11-28 | 2025-01-21 | 현대자동차주식회사 | 리튬 이차전지 및 리튬 이차전지의 제조방법 |
| KR102724456B1 (ko) | 2018-11-30 | 2024-11-01 | 주식회사 엘지에너지솔루션 | 양극 활물질, 상기 양극 활물질을 포함하는 양극 및 리튬 이차전지 |
| KR102204140B1 (ko) * | 2018-12-19 | 2021-01-18 | 재단법인 포항산업과학연구원 | 전고체 전지 및 이의 제조방법 |
| KR102725846B1 (ko) * | 2019-02-15 | 2024-11-05 | 주식회사 엘지화학 | 이차전지용 양극 활물질 및 이를 포함하는 리튬 이차전지 |
| CN111211320A (zh) * | 2020-01-21 | 2020-05-29 | 华东理工大学 | 一种锂镍钴氧化物正极材料及其制备方法、锂离子电池 |
| CN111628157B (zh) * | 2020-06-30 | 2024-03-26 | 蜂巢能源科技有限公司 | 正极材料、其制备方法及锂离子电池 |
| KR102515175B1 (ko) * | 2020-08-21 | 2023-03-29 | 코스모신소재 주식회사 | 이차전지용 양극활물질 및 양극활물질 제조방법 |
| CN112054183A (zh) * | 2020-09-03 | 2020-12-08 | 深圳澳睿新能源科技有限公司 | 制取具有成分梯度特性的材料的方法及在电池中的应用 |
| JPWO2022138104A1 (ko) * | 2020-12-25 | 2022-06-30 | ||
| CN112670493B (zh) * | 2020-12-25 | 2022-03-15 | 格林美(湖北)新能源材料有限公司 | 一种钨铊共掺杂镍钴铝三元正极材料及其制备方法 |
| CN113307310B (zh) * | 2021-04-08 | 2022-09-30 | 桂林理工大学 | 一种高循环性能的钼掺杂二氧化钛包覆高镍三元正极材料的制备方法 |
| CN113716625B (zh) * | 2021-09-02 | 2023-11-21 | 厦门厦钨新能源材料股份有限公司 | 大晶粒聚集体三元正极材料、其制备方法及锂离子电池 |
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| KR100473413B1 (ko) | 1998-11-13 | 2005-03-08 | 에프엠씨 코포레이션 | 국부화된 입방형 스피넬 구조의 상을 가지지 않는 층상리튬 금속 산화물 및 그 제조방법 |
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| KR100822012B1 (ko) | 2006-03-30 | 2008-04-14 | 한양대학교 산학협력단 | 리튬 전지용 양극 활물질, 그 제조 방법 및 그를 포함하는리튬 이차 전지 |
| JP5181482B2 (ja) | 2007-01-26 | 2013-04-10 | 住友金属鉱山株式会社 | 非水電解質二次電池用正極活物質の製造方法 |
| KR101059755B1 (ko) | 2009-04-09 | 2011-08-26 | 주식회사 엘지화학 | 리튬 이차전지용 양극 활물질 |
| KR101115416B1 (ko) | 2009-06-08 | 2012-02-15 | 한양대학교 산학협력단 | 리튬 이차 전지용 양극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지 |
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| JP5741932B2 (ja) | 2011-06-01 | 2015-07-01 | 住友金属鉱山株式会社 | 非水系電解質二次電池用正極活物質の前駆体となる遷移金属複合水酸化物とその製造方法、及び非水系電解質二次電池用正極活物質の製造方法 |
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| JP6286855B2 (ja) | 2012-04-18 | 2018-03-07 | 日亜化学工業株式会社 | 非水電解液二次電池用正極組成物 |
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| KR102076030B1 (ko) * | 2013-07-15 | 2020-02-12 | 삼성전자 주식회사 | 네트워크 부하가 적은 무선랜 ap 탐색을 위한 빠른 스캔 방법 및 장치 |
| JP6133720B2 (ja) * | 2013-07-24 | 2017-05-24 | 住友金属鉱山株式会社 | 非水電解質二次電池用正極活物質とその製造方法、並びに、非水電解質二次電池 |
| CN104584284B (zh) | 2013-08-29 | 2017-11-24 | 株式会社Lg 化学 | 锂过渡金属复合粒子及其制备方法、以及包含它的正极活性物质 |
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| KR101633256B1 (ko) | 2014-06-09 | 2016-06-27 | 주식회사 포스코 | 리튬 이차 전지용 양극 활물질, 이의 제조 방법, 및 이를 포함하는 리튬 이차 전지 |
| KR101746187B1 (ko) | 2014-10-15 | 2017-06-12 | 주식회사 포스코 | 리튬 이차 전지용 양극 활물질, 및 이를 포함하는 리튬 이차 전지 |
| CN104810512B (zh) | 2015-05-06 | 2017-05-31 | 中信国安盟固利电源技术有限公司 | 一种包覆改性的正极材料及其制备方法 |
-
2016
- 2016-12-12 KR KR1020160168830A patent/KR101918719B1/ko active Active
-
2017
- 2017-12-07 EP EP17881416.6A patent/EP3553855A4/en active Pending
- 2017-12-07 WO PCT/KR2017/014321 patent/WO2018110899A1/ko not_active Ceased
- 2017-12-07 CN CN201780083220.7A patent/CN110199416B/zh active Active
- 2017-12-07 JP JP2019531454A patent/JP7039591B2/ja active Active
- 2017-12-07 US US16/468,874 patent/US11670766B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110199416B (zh) | 2023-05-02 |
| CN110199416A (zh) | 2019-09-03 |
| US11670766B2 (en) | 2023-06-06 |
| US20200106095A1 (en) | 2020-04-02 |
| JP2020501329A (ja) | 2020-01-16 |
| JP7039591B2 (ja) | 2022-03-22 |
| WO2018110899A1 (ko) | 2018-06-21 |
| EP3553855A4 (en) | 2019-12-25 |
| KR20180067775A (ko) | 2018-06-21 |
| EP3553855A1 (en) | 2019-10-16 |
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