KR102245002B1 - 양극활물질 전구체 재료 및 리튬 이차전지용 양극활물질의 제조방법, 및 이에 따라 제조된 리튬 이차전지용 양극활물질 - Google Patents
양극활물질 전구체 재료 및 리튬 이차전지용 양극활물질의 제조방법, 및 이에 따라 제조된 리튬 이차전지용 양극활물질 Download PDFInfo
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- KR102245002B1 KR102245002B1 KR1020200025135A KR20200025135A KR102245002B1 KR 102245002 B1 KR102245002 B1 KR 102245002B1 KR 1020200025135 A KR1020200025135 A KR 1020200025135A KR 20200025135 A KR20200025135 A KR 20200025135A KR 102245002 B1 KR102245002 B1 KR 102245002B1
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Abstract
Description
| 실시예 1 | |||
| 추출순서 | (1) Mn | (2) Ni | (3) Co |
| 사용물질 | D2EHPA | DMG | D2EHPA |
| 생성물 | MnSO4 | NiSO4 | CoSO4 |
| 추출효율 | 82% | 90% | 95% |
| 순도 | 88% | 99.95% | 99.60% |
| 실시예 2 | |||
| 추출순서 | (1) Mn | (2) Ni | (3) Co |
| 사용물질 | D2EHPA | DMG | PC88A |
| 생성물 | MnSO4 | NiSO4 | CoSO4 |
| 추출효율 | 83% | 90% | 87% |
| 순도 | 88% | 99.93% | 99.50% |
| 비교예 1 | |||
| 추출순서 | (1) Mn | (2) Co | (3) Ni |
| 사용물질 | D2EHPA | Cyanex 272 | D2EHPA |
| 생성물 | MnSO4 | CoSO4 | NiSO4 |
| 추출효율 | 81% | 87% | 74% |
| 순도 | 88.20% | 99.40% | 93.60% |
| 비교예 2 | |||
| 추출순서 | (1) Mn | (2) Ni | (3) Co |
| 사용물질 | KMnO4 | DMG | Cyanex 272 |
| 생성물 | MnO2 | Ni-DMG | CoSO4 |
| 추출효율 | 80% | 89% | 81% |
| 순도 | 99.20% | 99.94% | 91.55% |
| 비교예 3 | |||
| 추출순서 | (1) Mn | (2) Co | (3) Ni |
| 사용물질 | D2EHPA | D2EHPA | DMG |
| 생성물 | MnSO4 | CoSO4 | NiSO4 |
| 추출효율 | 82% | 72% | 68% |
| 순도 | 88% | 74% | 99.93% |
Claims (12)
- (1) Mn, Ni 및 Co를 포함하는 폐 리튬 이차전지의 양극활물질을 침출시켜 침출액을 수득하는 단계;
(2) 제1 인산계 물질을 사용하여, 상기 침출액을 1차 용매추출하여, 황산 망간을 포함하는 Mn 염을 수득하는 단계;
(3) 옥심계 물질을 사용하여, 상기 용매추출된 잔액을 침전시켜, 황산 니켈을 포함하는 Ni 염을 수득하는 단계; 및
(4) 제2 인산계 물질을 사용하여, 상기 침전된 침출액을 2차 용매추출하여, 황산 코발트를 포함하는 Co 염을 수득하는 단계
를 포함하는, 양극활물질 전구체 재료의 제조방법.
- 청구항 1에 있어서,
상기 폐 리튬 이자전지의 양극활물질은 하기 화학식 1로 표시되는 양극활물질을 포함하는 것인, 양극활물질 전구체 재료의 제조방법.
[화학식 1]
LiNixCoyMnzO2
(상기 화학식 1에서,
0<x<10, 0<y<10, 및 0<z<10 이고,
x+y+z=10 임.)
- 청구항 1에 있어서,
상기 제1 인산계 물질 및 상기 제2 인산계 물질은, 각각 독립적으로, 하기 화학식 2 및 하기 화학식 3으로 표시되는 화합물로부터 선택되는 1종 이상의 화합물을 포함하는 것인, 양극활물질 전구체 재료의 제조방법.
[화학식 2]
(상기 화학식 2에 있어서,
상기 R1 및 R2는, 각각 독립적으로, 헤테로 원자를 포함하거나 포함하지 않는 C1 내지 C30의 직쇄 또는 분지쇄 알킬기임.)
[화학식 3]
(상기 화학식 3에 있어서,
상기 R3 및 R4는, 각각 독립적으로, 헤테로 원자를 포함하거나 포함하지 않는 C1 내지 C30의 직쇄 또는 분지쇄 알킬기임.)
- 청구항 3에 있어서,
상기 제1 인산계 물질 및 상기 제2 인산계 물질은, 각각 독립적으로, 디-(2-에틸헥실)인산 (Di-(2-ethylhexyl)phosphoric acid) 및 2-에틸헥실 포스폰산 모노 2-에틸헥실 에스테르 (2-ethylhexyl phosphonic acid mono 2-ethylhexyl ester)로부터 선택되는 1종 이상의 것을 포함하는, 양극활물질 전구체 재료의 제조방법.
- 청구항 1에 있어서,
상기 옥심계 물질은 디메틸글리옥심, 디에틸글리옥심, 디프로필글리옥심, 및 에틸메틸글리옥심으로 이루어진 군으로부터 선택되는 1종 이상의 것을 포함하는, 양극활물질 전구체 재료의 제조방법.
- 청구항 1에 있어서,
상기 (2) 내지 (4) 단계는 산성 분위기에서 수행되는 것을 특징으로 하는, 양극활물질 전구체 재료의 제조방법.
- 청구항 6에 있어서,
상기 (2) 단계는 pH 2 내지 4에서 수행되고,
상기 (3) 단계는 pH 4 내지 6에서 수행되고,
상기 (4) 단계는 pH 4 내지 5.5에서 수행되는 것을 특징으로 하는, 양극활물질 전구체 재료의 제조방법.
- 청구항 1에 있어서,
상기 (3) 단계에서 수득한 Ni 염에 황산을 첨가하는 단계를 더 포함하는 양극활물질 전구체 재료의 제조방법.
- 삭제
- 청구항 1에 있어서,
상기 폐 리튬 이차전지의 양극활물질은 폐 리튬 이차전지를 파쇄한 후 열처리하여 수득되는 것을 포함하는 양극활물질 전구체 재료의 제조 방법.
- 청구항 1 내지 8 및 10 중 어느 한 항에 따른 제조 방법에 의해 제조되는 양극활물질 전구체 재료 및 리튬염을 혼합하여 LiNixCoyMnzO2 (상기 식에서, 0≤x≤10, 0≤y≤10, 및 0≤z≤10 이고, x+y+z=10 임)로 표시되는 양극활물질을 수득하는 것을 특징으로 하는 리튬 이차전지용 양극활물질의 제조방법.
- 청구항 11의 제조방법에 의하여 제조된 리튬 이차전지용 양극활물질.
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| KR1020200025135A KR102245002B1 (ko) | 2020-02-28 | 2020-02-28 | 양극활물질 전구체 재료 및 리튬 이차전지용 양극활물질의 제조방법, 및 이에 따라 제조된 리튬 이차전지용 양극활물질 |
| PCT/KR2020/014253 WO2021172688A1 (ko) | 2020-02-28 | 2020-10-19 | 양극활물질 전구체 재료 및 리튬 이차전지용 양극활물질의 제조방법, 및 이에 따라 제조된 리튬 이차전지용 양극활물질 |
| EP20920834.7A EP4112556A4 (en) | 2020-02-28 | 2020-10-19 | METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES AND POSITIVE ELECTRODE ACTIVE MATERIAL PRODUCED THEREFROM |
| JP2022551772A JP7375218B2 (ja) | 2020-02-28 | 2020-10-19 | 正極活物質前駆体材料およびリチウム二次電池用正極活物質の製造方法、およびこれによって製造されたリチウム二次電池用正極活物質 |
| CN202080097668.6A CN115190868B (zh) | 2020-02-28 | 2020-10-19 | 制造正极活性材料的前体材料和用于二次锂电池的正极活性材料的方法及由此制造的用于二次锂电池的正极活性材料 |
| US17/801,634 US20230106658A1 (en) | 2020-02-28 | 2020-10-19 | Methods for manufacturing positive electrode active material precursor material and positive electrode active material for secondary lithium battery, and positive electrode active material for secondary lithium battery manufactured thereby |
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| KR1020200025135A KR102245002B1 (ko) | 2020-02-28 | 2020-02-28 | 양극활물질 전구체 재료 및 리튬 이차전지용 양극활물질의 제조방법, 및 이에 따라 제조된 리튬 이차전지용 양극활물질 |
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| US (1) | US20230106658A1 (ko) |
| EP (1) | EP4112556A4 (ko) |
| JP (1) | JP7375218B2 (ko) |
| KR (1) | KR102245002B1 (ko) |
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| KR102471399B1 (ko) * | 2022-02-17 | 2022-11-28 | (주)에코프로머티리얼즈 | 니켈, 코발트 및 망간의 분리 회수를 위한 2단 추출을 이용한 용매추출방법 |
| WO2023195565A1 (ko) * | 2022-04-08 | 2023-10-12 | (주)에코프로머티리얼즈 | 니켈, 코발트 및 망간의 분리 회수를 위한 용매추출방법 |
| KR20240115462A (ko) | 2023-01-19 | 2024-07-26 | 울산대학교 산학협력단 | 하이브리드 코팅막을 포함하는 올리빈 양극 활물질 및 이의 제조방법 |
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| KR20230087197A (ko) * | 2021-12-09 | 2023-06-16 | 현대자동차주식회사 | 연료 전지 차량 |
| KR20250171322A (ko) * | 2023-08-10 | 2025-12-08 | 후지시끼소 가부시끼 가이샤 | 전극 활물질의 제조 방법, 전극 및 리튬이온 전지 |
| CN117963866A (zh) * | 2023-11-04 | 2024-05-03 | 浙江山海高新能源有限公司 | 一种退役电池回收制备磷酸铁锂的方法 |
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| Publication number | Publication date |
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| CN115190868A (zh) | 2022-10-14 |
| EP4112556A1 (en) | 2023-01-04 |
| CN115190868B (zh) | 2024-08-16 |
| US20230106658A1 (en) | 2023-04-06 |
| JP2023516191A (ja) | 2023-04-18 |
| WO2021172688A1 (ko) | 2021-09-02 |
| EP4112556A4 (en) | 2023-09-06 |
| JP7375218B2 (ja) | 2023-11-07 |
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