KR20190114902A - 비수 전해질 이차전지, 및, 비수 전해질 이차전지의 제조 방법 - Google Patents
비수 전해질 이차전지, 및, 비수 전해질 이차전지의 제조 방법 Download PDFInfo
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Abstract
Description
도 2는 종래의 비수 전해질 이차전지의 과제를 설명하기 위한 전극군의 단면 개념도이다.
도 3은 실시 형태의 비수 전해질 이차전지의 구성의 일례를 나타내는 개략도이다.
도 4는 실시 형태의 전극군의 구성의 일례를 나타내는 개략도이다.
도 5는 실시 형태의 정극의 구성의 일례를 나타내는 개략도이다.
도 6은 실시 형태의 부극의 구성의 일례를 나타내는 개략도이다.
Claims (5)
- 전극군과 전해액을 구비하는 비수 전해질 이차전지로서,
상기 전극군은, 정극 집전체 및 상기 정극 집전체의 표면에 마련된 정극 합재층을 포함하는 정극과, 부극 집전체 및 부극 합재층을 포함하는 부극과, 상기 정극과 상기 부극 사이에 개재하는 세퍼레이터를 포함하며,
상기 전극군이 셀룰로오스 나노 파이버를 포함하고,
상기 정극 집전체와 상기 정극 합재층의 사이의 박리강도, 및, 상기 부극 집전체와 상기 부극 합재층의 사이의 박리강도 중 적어도 어느 것이, 상기 세퍼레이터와 상기 정극 합재층의 사이의 박리강도, 및, 상기 세퍼레이터와 상기 부극 합재층의 사이의 박리강도의 양방보다 작고,
상기 정극 집전체와 상기 정극 합재층의 사이의 박리강도, 및, 상기 부극 집전체와 상기 부극 합재층의 사이의 박리강도 중, 큰 쪽의 값이 작은 쪽의 값의 1.5배 이상인, 비수 전해질 이차전지. - 제 1 항에 있어서,
추가로 이온 액체를 포함하는, 비수 전해질 이차전지. - 제 1 항 또는 제 2 항에 있어서,
상기 전극군 중의 상기 셀룰로오스 나노 파이버의 함유율은, 상기 전극군 중의 공공의 총 체적에 대하여 10 체적% 이상 30 체적% 이하인, 비수 전해질 이차전지. - 제 1 항에 기재된 비수 전해질 이차전지의 제조 방법으로서,
상기 전극군을 케이스에 수납하는 공정과,
이온 액체와, 상기 이온 액체에 용해된 상기 셀룰로오스 나노 파이버를 포함하는 셀룰로오스 나노 파이버 용액을, 상기 전극군에 함침시키는 공정과,
상기 전해액을 상기 케이스 내에 주입하는 공정을 이 순서로 포함하고,
상기 셀룰로오스 나노 파이버 용액에 있어서의 상기 셀룰로오스 나노 파이버의 함유율은, 상기 이온 액체의 양에 대하여 4 질량% 이상인, 제조 방법. - 제 4 항에 있어서,
상기 셀룰로오스 나노 파이버 용액에 있어서의 상기 셀룰로오스 나노 파이버의 함유율은, 상기 이온 액체의 양에 대하여 20 질량% 미만인, 제조 방법.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018067961A JP6973244B2 (ja) | 2018-03-30 | 2018-03-30 | 非水電解質二次電池、および、非水電解質二次電池の製造方法 |
| JPJP-P-2018-067961 | 2018-03-30 |
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| KR20190114902A true KR20190114902A (ko) | 2019-10-10 |
| KR102243458B1 KR102243458B1 (ko) | 2021-04-22 |
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| JP7358314B2 (ja) * | 2020-09-14 | 2023-10-10 | 株式会社東芝 | 電極構造体、電極群、二次電池、電池パック、車両、及び定置用電源 |
| US11588176B2 (en) | 2021-01-04 | 2023-02-21 | Bioenno Tech LLC | All solid-state lithium-ion battery incorporating electrolyte-infiltrated composite electrodes |
| US12463245B2 (en) | 2021-01-04 | 2025-11-04 | Solid Energies Inc. | High voltage electrolyte for 5V solid state lithium-ion battery cell |
| JP7536690B2 (ja) * | 2021-03-12 | 2024-08-20 | 株式会社東芝 | 電極群、二次電池、電池パック、車両、及び定置用電源 |
| CN113241437A (zh) * | 2021-05-08 | 2021-08-10 | 珠海冠宇电池股份有限公司 | 一种负极片及包括该负极片的锂离子电池 |
| JP7778048B2 (ja) * | 2022-08-26 | 2025-12-01 | プライムプラネットエナジー&ソリューションズ株式会社 | 二次電池の製造方法および二次電池 |
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| KR20150122122A (ko) * | 2013-02-27 | 2015-10-30 | 제온 코포레이션 | 전기 화학 소자 전극용 복합 입자, 전기 화학 소자 전극용 복합 입자의 제조 방법, 전기 화학 소자 전극 및 전기 화학 소자 |
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| US20080212261A1 (en) * | 2006-07-05 | 2008-09-04 | Rensselaer Polytechnic Institute | Energy storage devices and composite articles associated with the same |
| CN101821824B (zh) * | 2007-10-18 | 2012-07-04 | 株式会社可乐丽 | 层叠体、电容器用隔板和电容器 |
| CN101585931B (zh) * | 2008-05-23 | 2011-06-01 | 中国科学院化学研究所 | 一种复合型聚合物电解质材料及其制备方法与应用 |
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| KR100670483B1 (ko) * | 2005-08-25 | 2007-01-16 | 삼성에스디아이 주식회사 | 리튬 이차 전지 |
| KR20150122122A (ko) * | 2013-02-27 | 2015-10-30 | 제온 코포레이션 | 전기 화학 소자 전극용 복합 입자, 전기 화학 소자 전극용 복합 입자의 제조 방법, 전기 화학 소자 전극 및 전기 화학 소자 |
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| KR102243458B1 (ko) | 2021-04-22 |
| US20190305314A1 (en) | 2019-10-03 |
| US11223047B2 (en) | 2022-01-11 |
| CN110323414B (zh) | 2022-08-12 |
| JP2019179658A (ja) | 2019-10-17 |
| CN110323414A (zh) | 2019-10-11 |
| JP6973244B2 (ja) | 2021-11-24 |
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