KR20250040639A - 세라믹 산화물 전해질, 리튬 전극 재료 및 강화제를 포함하는 복합 캐소드 재료 - Google Patents
세라믹 산화물 전해질, 리튬 전극 재료 및 강화제를 포함하는 복합 캐소드 재료 Download PDFInfo
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Abstract
Description
도 2는 비교예 1-3의 NMC-LATP 혼합물의 사이클링 성능의 온도에 따른 저하를 도시한 것이다.
도 3은 비교예 1과 비교하여 실시예 5-7의 복합 캐소드 재료의 전기화학적 성능에 대한 불화리튬 첨가의 향상 효과를 도시한 것이다.
도 4는 비교예 2와 비교하여 실시예 8-10의 복합 캐소드 재료의 전기화학적 성능에 대한 불화리튬 첨가의 향상 효과를 도시한 것이다.
Claims (15)
- ㆍ 리튬 알루미늄 티타늄 포스페이트(LATP) 및/또는 리튬 알루미늄 게르마늄 포스페이트(LAGP)를 포함하는 세라믹 산화물 전해질 재료;
ㆍ Li, M, 및 O를 포함하며, M은 Ni, 및 Mn과 Co 중 하나 또는 둘 다를 포함하는 전극 활물질; 및
ㆍ LiX인 강화제로서 X가 할라이드인 강화제
를 포함하는 고체 복합 캐소드 조성물. - 제1항에 있어서, 세라믹 산화물 전해질 재료는 화학식 Li1+mAlmTi2-m(PO4)3의 LATP를 포함하며, 상기 화학식에서 0 < m < 1, 바람직하게는 0.2 < m < 0.8, 보다 바람직하게는 0.3 < m < 0.5인 조성물.
- 제1항 또는 제2항에 있어서, 전극 활물질은 Li, M, 및 O를 포함하고, M은
- M에 대해 55.0 mol% ≤ x ≤ 95.0 mol%인 함량 x의 Ni;
- M에 대해 0.0 mol% ≤ y ≤ 40.0 mol%인 함량 y의 Mn;
- M에 대해 0.0 mol% ≤ z ≤ 40.0 mol%인 함량 z의 Co;
- M에 대해 0.0 mol% ≤ a ≤ 2.0 mol%인 함량 a의 D로서, Li, Ni, Mn, Co, 및 O 이외의 적어도 하나의 원소인 D
를 포함하며, 여기에서 x + y + z + a는 100.0 mol%이고;
바람직하게는 M은
- M에 대해 55.0 mol% ≤ x ≤ 80.0 mol%인 함량 x의 Ni;
- M에 대해 10.0 mol% ≤ y ≤ 30.0 mol%인 함량 y의 Mn;
- M에 대해 10.0 mol% ≤ z ≤ 30.0 mol%인 함량 z의 Co;
- M에 대해 0.0 mol% ≤ a ≤ 2.0 mol%인 함량 a의 D로서, Li, Ni, Mn, Co, 및 O 이외의 적어도 하나의 원소인 D
를 포함하며, 여기에서 x + y + z + a는 100.0 mol%인 조성물. - 제1항 내지 제3항 중 어느 한 항에 있어서, 강화제는 불화리튬인 조성물.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 강화제는 (조성물의 총 중량 기준) 적어도 0.5 중량%, 바람직하게는 (조성물의 총 중량 기준) 적어도 4 중량%, 보다 바람직하게는 (조성물의 총 중량 기준) 적어도 8 중량%의 양으로 존재하는 것인 조성물.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 전극 활물질 대 세라믹 산화물 전해질 재료의 비(w/w)는 적어도 1:1, 바람직하게는 적어도 1.5:1, 더 바람직하게는 적어도 1.8:1인 조성물.
- 제1항 내지 제6항 중 어느 한 항에 있어서, 고체는 탄소계 전도 보조제를 추가로 포함하는 것인 조성물.
- 제7항에 있어서, 탄소계 전도 보조제는 그래파이트, 카본 블랙, 탄소 섬유, 탄소 나노튜브, 그래핀 및 이들의 조합으로 이루어진 군에서 선택되며, 바람직하게는 카본 블랙에서 선택되는 것인 조성물.
- 제7항 또는 제8항에 있어서, (세라믹 산화물 전해질 재료 및 전극 활물질의 합산 중량 기준) 적어도 0.5 중량%, 바람직하게는 (세라믹 산화물 전해질 재료 및 전극 활물질의 합산 중량 기준) 적어도 1 중량%, 보다 바람직하게는 (세라믹 산화물 전해질 재료 및 전극 활물질의 합산 중량 기준) 적어도 3 중량%의 탄소계 전도 보조제를 포함하는 조성물.
- 제1항 내지 제9항 중 어느 한 항에 있어서, 세라믹 산화물 전해질 재료, 전극 활물질, 강화제 및 선택적인 탄소계 전도 보조제의 합산량이 (조성물의 총 중량 기준) 적어도 90 중량%, 바람직하게는 (조성물의 총 중량 기준) 적어도 95 중량%인 조성물.
- 제1항 내지 제10항 중 어느 한 항에 있어서, 강화제는 조성물 전체에 실질적으로 균질하게 분포되는 것인 조성물.
- 제1항 내지 제11항 중 어느 한 항에 있어서, 소결된, 바람직하게는 600℃ 미만의 온도에서 소결된, 보다 바람직하게는 500℃ 미만의 온도에서 소결된 조성물.
- a) 적어도 하기 전구체를 제공하는 단계:
ㆍ 리튬 알루미늄 티타늄 포스페이트(LATP) 및/또는 리튬 알루미늄 게르마늄 포스페이트(LAGP)를 포함하는 세라믹 산화물 재료;
ㆍ Li, M, 및 O를 포함하며, M은 Ni, 및 Mn과 Co 중 하나 또는 둘 다를 포함하는 전극 활물질;
ㆍ LiX인 강화제로서 X가 할라이드인 강화제; 및
ㆍ 선택적으로 탄소계 전도 보조제;
b) 단계 (a)에서 제공된 전구체를 포함하는 실질적으로 균질한 혼합물을 제조하는 단계; 및
c) 선택적으로 단계 (b)의 혼합물을 소결하는 단계
를 포함하는, 복합 캐소드 조성물, 바람직하게는 제1항 내지 제12항 중 어느 한 항에 따른 조성물의 제조 방법. - 제13항에 있어서, 단계 (c)를 수행하며,
ㆍ 단계 (c)의 소결 중 온도는 500℃ 미만, 바람직하게는 450℃ 미만이고;
ㆍ 바람직하게는, 소결 중 압력은 1 내지 3 GPa 범위 내인 제조 방법. - 제1항 내지 제12항 중 어느 한 항의 고체 재료를 포함하는 전기화학 전지.
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| EP22382602.5 | 2022-06-27 | ||
| EP22382602 | 2022-06-27 | ||
| PCT/EP2023/067360 WO2024002990A1 (en) | 2022-06-27 | 2023-06-27 | Composite cathode material comprising ceramic oxide electrolyte, lithium electrode material and enhancing agent |
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| JP6735083B2 (ja) * | 2015-11-10 | 2020-08-05 | 日本特殊陶業株式会社 | イオン伝導体およびリチウム電池 |
| JP6763965B2 (ja) * | 2015-12-21 | 2020-09-30 | ジョンソン・アイピー・ホールディング・エルエルシー | 固体電池、セパレータ、電極および製造方法 |
| JP7000675B2 (ja) * | 2016-11-29 | 2022-01-19 | セイコーエプソン株式会社 | 複合体の製造方法、電池および電池の製造方法、電子機器 |
| CN109818048A (zh) * | 2019-03-04 | 2019-05-28 | 江西星盈科技有限公司 | 全固态锂金属电池及其制备工艺 |
| US20210020944A1 (en) * | 2019-07-16 | 2021-01-21 | Lionano Se Inc. | Electrodes for lithium-ion batteries and other applications |
| US11094996B2 (en) | 2019-09-18 | 2021-08-17 | GM Global Technology Operations LLC | Additive to ceramic ion conducting material to mitigate the resistive effect of surface carbonates and hydroxides |
| CN111430688A (zh) * | 2020-03-18 | 2020-07-17 | 蜂巢能源科技有限公司 | 固态电池及其制备方法和应用 |
| CN113054244B (zh) * | 2021-03-12 | 2022-05-17 | 南方科技大学 | 复合固态电解质材料及其制备方法、固态电解质片的制备方法及全固态电池 |
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2023
- 2023-06-27 CN CN202380048219.6A patent/CN119487634A/zh active Pending
- 2023-06-27 KR KR1020257002103A patent/KR20250040639A/ko active Pending
- 2023-06-27 WO PCT/EP2023/067360 patent/WO2024002990A1/en not_active Ceased
- 2023-06-27 JP JP2024576763A patent/JP2025521718A/ja active Pending
- 2023-06-27 US US18/876,930 patent/US20260121062A1/en active Pending
- 2023-06-27 EP EP23733013.9A patent/EP4544610A1/en active Pending
Also Published As
| Publication number | Publication date |
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| CN119487634A (zh) | 2025-02-18 |
| WO2024002990A1 (en) | 2024-01-04 |
| US20260121062A1 (en) | 2026-04-30 |
| EP4544610A1 (en) | 2025-04-30 |
| JP2025521718A (ja) | 2025-07-10 |
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