KR102236601B1 - 리튬 금속 복합 산화물 분말 - Google Patents
리튬 금속 복합 산화물 분말 Download PDFInfo
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Abstract
조성 LiaNibCocMndO2(0.8≤a≤1.2, 0.7≤b≤0.95, 0.05≤c≤0.33, 0.05≤d≤0.33, b+c+d=1)를 갖는 리튬·니켈·코발트·망가니즈 복합 산화물의 입자로 이루어지는, 그 분말의 평균 입경(체적 기준 평균 직경)이, 10.0μm 초과 16.0μm 미만이고, 그 분말의 질소 흡착에 의한 BET법에 의한 비표면적이 0.5m2/g 초과 2.0m2/g 미만이며, 수세 처리가 실시된, 분말.
Description
Claims (10)
- 조성: LiaNibCocMndO2(0.8≤a≤1.2, 0.7≤b≤0.95, 0.05≤c≤0.33, 0.1≤d≤0.33, b+c+d=1)를 갖는 리튬·니켈·코발트 망가니즈 복합 산화물의 입자로 이루어지고,
상기 입자의 평균 입경(체적 기준 평균 직경)이 10.0μm 초과 16.0μm 미만이며,
상기 입자의 질소 흡착에 의한 BET법에 의한 비표면적이 1.0m2/g 초과 2.0m2/g 미만이고,
상기 입자는 입자 100g당 100ml 이상의 양의 순수(단, 입자 100g당 순수 100ml 내지 142ml의 범위는 제외함)에 의하여 세정되어, 잔존 수산화 리튬량이 0.3중량% 이하로 저감되어 있고,
10몰% 이하의, Ca, Ti, Al, Mg, W, Zr, Cr, V로부터 선택되는 1종 이상의 도펀트를 더 포함하는,
리튬 이온 전지 정극 활물질용 리튬 금속 복합 산화물 분말. - 청구항 1에 있어서,
127MPa로 가압했을 때에 3.0g/cm3 이상의 충전 밀도를 갖는, 리튬 이온 전지 정극 활물질용 리튬 금속 복합 산화물 분말. - 청구항 1 또는 청구항 2에 있어서,
1종 이상의 도펀트가 Ca, Ti, Al, Mg, Cr, V로부터 선택되는, 리튬 이온 전지 정극 활물질용 리튬 금속 복합 산화물 분말. - 청구항 1 또는 청구항 2에 있어서,
롤러 하스 킬른 또는 로터리 킬른을 이용하여 제조된 것인, 리튬 이온 전지 정극 활물질용 리튬 금속 복합 산화물 분말. - 청구항 1 또는 청구항 2에 있어서,
입자 100g당 100ml 이상의 양의 순수에 의하여 세정되고, 다음으로 200℃ 이상 800℃ 이하의 범위의 온도에서 건조한 것인, 리튬 이온 전지 정극 활물질용 리튬 금속 복합 산화물 분말. - 청구항 1 또는 청구항 2에 기재된 리튬 금속 복합 산화물 분말을 포함하는 정극 활물질.
- 청구항 4에 기재된 정극 활물질을 이용한 리튬 이온 전지.
- 이하의 공정을 갖는, 청구항 1 또는 청구항 2에 기재된 리튬 이온 전지 정극 활물질용 리튬 금속 복합 산화물 분말의 제조 방법;
(혼합 공정) 평균 입자경이 10.0μm 초과 20.0μm 미만인 니켈·코발트·망가니즈 복합 수산화물의 분말을 전구체 분말로서 준비하고, 이 전구체 분말에 리튬 화합물의 분말을 첨가하여 혼합물을 얻는 공정이며, 여기에서 상기 전구체 분말과 상기 리튬 화합물 분말과의 양비는, 원소 Li, Ni, Co, Mn이 조성: LiaNibCocMndO2(0.8≤a≤1.2, 0.7≤b≤0.95, 0.05≤c≤0.33, 0.1≤d≤0.33, b+c+d=1)를 충족시키는 비율로 포함되는 혼합물이 얻어지는 범위에 있다;
(소성 공정) 상기 혼합 공정에서 얻어진 혼합물을, 산소를 포함하는 기류 중에서, 450℃~900℃의 온도 범위에서, 2시간~20시간, 소성하는 공정;
(수세 공정) 소성물(리튬·니켈·코발트 망가니즈 복합 산화물)을, 그 100g당 100ml 이상의 양의 순수(단, 입자 100g당 순수 100ml 내지 142ml의 범위는 제외함)에 의하여 세정하여, 리튬 금속 복합 산화물 분말을 얻는 공정. - 청구항 8에 있어서,
세정 공정에서 얻어진 리튬 금속 복합 산화물 입자를 200℃ 이상 800℃ 이하의 범위의 온도에서 건조하여 리튬 금속 복합 산화물 분말을 얻는 공정을 더 갖는, 리튬 이온 전지 정극 활물질용 리튬 금속 복합 산화물 분말의 제조 방법. - 삭제
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JPJP-P-2016-144384 | 2016-07-22 | ||
JP2016144384 | 2016-07-22 | ||
PCT/JP2017/026104 WO2018016525A1 (ja) | 2016-07-22 | 2017-07-19 | リチウム金属複合酸化物粉末 |
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KR102236601B1 true KR102236601B1 (ko) | 2021-04-07 |
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EP (1) | EP3490041A4 (ko) |
JP (1) | JP7041620B2 (ko) |
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CN (1) | CN109643795B (ko) |
TW (1) | TWI654140B (ko) |
WO (1) | WO2018016525A1 (ko) |
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KR102231062B1 (ko) | 2018-03-09 | 2021-03-23 | 주식회사 엘지화학 | 양극 활물질, 그 제조 방법, 이를 포함하는 양극 및 이차전지 |
KR102288295B1 (ko) | 2018-06-20 | 2021-08-10 | 주식회사 엘지화학 | 리튬 이차 전지용 양극 활물질 및 리튬 이차 전지 |
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CN109713228B (zh) * | 2019-01-04 | 2021-07-23 | 南通瑞翔新材料有限公司 | 一种锂离子电池三元材料可循环的水洗降碱方法 |
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2017
- 2017-07-19 WO PCT/JP2017/026104 patent/WO2018016525A1/ja active Search and Examination
- 2017-07-19 US US16/318,398 patent/US20190288284A1/en not_active Abandoned
- 2017-07-19 EP EP17831041.3A patent/EP3490041A4/en active Pending
- 2017-07-19 JP JP2018528830A patent/JP7041620B2/ja active Active
- 2017-07-19 KR KR1020197004849A patent/KR102236601B1/ko active Active
- 2017-07-19 CN CN201780044582.5A patent/CN109643795B/zh active Active
- 2017-07-21 TW TW106124618A patent/TWI654140B/zh active
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WO2018016525A1 (ja) | 2018-01-25 |
EP3490041A1 (en) | 2019-05-29 |
TWI654140B (zh) | 2019-03-21 |
CN109643795A (zh) | 2019-04-16 |
TW201806867A (zh) | 2018-03-01 |
JPWO2018016525A1 (ja) | 2019-06-13 |
CN109643795B (zh) | 2022-01-04 |
JP7041620B2 (ja) | 2022-03-24 |
KR20190032452A (ko) | 2019-03-27 |
US20190288284A1 (en) | 2019-09-19 |
EP3490041A4 (en) | 2020-01-08 |
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