KR102072372B1 - 부극층 및 리튬 전고체 전지 - Google Patents
부극층 및 리튬 전고체 전지 Download PDFInfo
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- KR102072372B1 KR102072372B1 KR1020170174233A KR20170174233A KR102072372B1 KR 102072372 B1 KR102072372 B1 KR 102072372B1 KR 1020170174233 A KR1020170174233 A KR 1020170174233A KR 20170174233 A KR20170174233 A KR 20170174233A KR 102072372 B1 KR102072372 B1 KR 102072372B1
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- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
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- H01M4/386—Silicon or alloys based on silicon
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- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
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- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
(해결수단) 본 개시에 있어서는, 리튬 전고체 전지에 사용되는 부극층으로서, Li 와 합금화 가능한 금속 입자를 활물질로서 갖고, 상기 금속 입자가, 1 입자 내에 2 종류 이상의 결정 방위를 갖는 것을 특징으로 하는 부극층을 제공함으로써, 상기 과제를 해결한다.
Description
도 2 는 본 개시에 있어서의 금속 입자의 일례를 나타내는 개략 단면도이다.
도 3 은 본 개시의 리튬 전고체 전지의 일례를 나타내는 개략 단면도이다.
도 4 는 실시예 1 ∼ 4, 및 비교예 1 ∼ 4 에 있어서의 Si 입자 (부극 활물질) 의 EBSD 측정 결과이다.
도 5 는 실시예 1 ∼ 4, 및 비교예 1 ∼ 4 의 평가용 전지에 있어서의 구속압과 용량 유지율의 관계를 나타내는 그래프이다.
2 : 정극층
3 : 고체 전해질층
4 : 부극 집전체
5 : 정극 집전체
10 : 전지 요소
20 : 구속 부재
100 : 리튬 전고체 전지
Claims (6)
- 리튬 전고체 전지에 사용되는 부극층으로서,
Li 와 합금화 가능한 금속 입자를 활물질로서 갖고,
상기 금속 입자가, 1 입자 내에 2 종류 이상의 결정 방위를 갖는 쌍정 입자인 것을 특징으로 하는 부극층. - 제 1 항에 있어서,
상기 금속 입자는 EBSD 측정에 의해 얻어지는 맵도에 있어서, 2 색 이상, 7 색 이하로 칠하여 나뉘어지는 것을 특징으로 하는 부극층. - 제 1 항에 있어서,
상기 금속 입자가 Si 단체 또는 Si 합금인 것을 특징으로 하는 부극층. - 부극층과, 정극층과, 상기 부극층 및 상기 정극층 사이에 형성된 고체 전해질층을 갖는 전지 요소를 구비하고, 상기 부극층이 제 1 항 내지 제 3 항 중 어느 한 항에 기재된 부극층인 것을 특징으로 하는 리튬 전고체 전지.
- 제 4 항에 있어서,
상기 전지 요소의 두께 방향으로 구속압을 부여하는 구속부를 추가로 갖고, 상기 구속압이 3 ㎫ ∼ 20 ㎫ 의 범위 내인 것을 특징으로 하는 리튬 전고체 전지. - 제 4 항에 있어서,
상기 전지 요소를 복수 갖는 것을 특징으로 하는 리튬 전고체 전지.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP-P-2017-011052 | 2017-01-25 | ||
| JP2017011052A JP6894243B2 (ja) | 2017-01-25 | 2017-01-25 | 負極層およびリチウム全固体電池 |
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| Publication Number | Publication Date |
|---|---|
| KR20180087834A KR20180087834A (ko) | 2018-08-02 |
| KR102072372B1 true KR102072372B1 (ko) | 2020-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020170174233A Active KR102072372B1 (ko) | 2017-01-25 | 2017-12-18 | 부극층 및 리튬 전고체 전지 |
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| Country | Link |
|---|---|
| US (1) | US10714737B2 (ko) |
| EP (1) | EP3355387A1 (ko) |
| JP (1) | JP6894243B2 (ko) |
| KR (1) | KR102072372B1 (ko) |
| CN (1) | CN108346774B (ko) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6894243B2 (ja) | 2017-01-25 | 2021-06-30 | トヨタ自動車株式会社 | 負極層およびリチウム全固体電池 |
| JP6927131B2 (ja) * | 2018-04-16 | 2021-08-25 | トヨタ自動車株式会社 | 全固体電池の製造方法、全固体電池および全固体電池システム |
| KR102618095B1 (ko) * | 2018-10-15 | 2023-12-27 | 후지필름 가부시키가이샤 | 전극용 조성물, 전고체 이차 전지용 전극 시트와 전고체 이차 전지, 및 전극용 조성물, 전고체 이차 전지용 전극 시트와 전고체 이차 전지의 각 제조 방법 |
| JP7206978B2 (ja) * | 2019-02-06 | 2023-01-18 | トヨタ自動車株式会社 | 全固体電池およびその製造方法 |
| JP7207248B2 (ja) * | 2019-09-24 | 2023-01-18 | トヨタ自動車株式会社 | 全固体電池 |
| JP7431082B2 (ja) * | 2020-03-27 | 2024-02-14 | トヨタ自動車株式会社 | 活物質、負極層、電池およびこれらの製造方法 |
| CN115516664A (zh) * | 2020-05-28 | 2022-12-23 | 松下知识产权经营株式会社 | 电池 |
| KR102806854B1 (ko) * | 2021-03-30 | 2025-05-14 | 주식회사 엘지에너지솔루션 | 다공성 집전체를 포함하는 전고체전지 및 이를 포함하는 전지모듈 |
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- 2017-01-25 JP JP2017011052A patent/JP6894243B2/ja active Active
- 2017-12-18 KR KR1020170174233A patent/KR102072372B1/ko active Active
- 2017-12-22 US US15/853,125 patent/US10714737B2/en active Active
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- 2018-01-09 EP EP18150819.3A patent/EP3355387A1/en active Pending
- 2018-01-12 CN CN201810029479.XA patent/CN108346774B/zh active Active
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| JP2003109590A (ja) * | 2001-09-28 | 2003-04-11 | Mitsubishi Materials Corp | 負極材料及びこれを用いた負極、並びにこの負極を用いた非水電解液リチウム二次電池及びリチウムイオンポリマー二次電池 |
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| Publication number | Publication date |
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| CN108346774B (zh) | 2021-02-05 |
| EP3355387A1 (en) | 2018-08-01 |
| JP6894243B2 (ja) | 2021-06-30 |
| US10714737B2 (en) | 2020-07-14 |
| KR20180087834A (ko) | 2018-08-02 |
| JP2018120735A (ja) | 2018-08-02 |
| CN108346774A (zh) | 2018-07-31 |
| US20180212227A1 (en) | 2018-07-26 |
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