KR20180109703A - 전기 화학 디바이스 - Google Patents
전기 화학 디바이스 Download PDFInfo
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Abstract
본 발명의 일 형태에 따른 전기 화학 디바이스는 정극, 부극, 세퍼레이터 및 전해액을 갖는다. 정극은, 도전성 재료를 포함하는 정극 집전체, 및 정극 집전체 상에 형성된 정극 활물질층을 갖는다. 부극은, 제1 주면과 제1 주면과는 반대측의 제2 주면을 갖는 부극 집전체, 제1 주면에 형성된 제1 부극 활물질층, 및 제2 주면에 간헐적으로 형성되고 제1 부극 활물질층보다도 부극 활물질의 밀도가 낮은 제2 부극 활물질층을 갖는다. 세퍼레이터는 정극과 부극을 절연한다. 전기액은 정극, 부극 및 세퍼레이터를 침지한다. 전기 화학 디바이스는, 제2 부극 활물질층이 형성되어 있지 않은 제2 주면에 금속 리튬이 전기적으로 접속되고 전해액에 침지됨으로써, 제1 및 제2 부극 활물질층에 리튬 이온의 프리도프가 이루어져 있다.
Description
도 2는 동 실시 형태의 축전 소자의 사시도이다.
도 3은 동 실시 형태의 축전 소자의 확대 단면도이다.
도 4는 동 실시 형태의 권회 전의 부극을 도시하는 모식도이다.
도 5는 동 실시 형태의 권회 전의 정극을 도시하는 모식도이다.
도 6은 동 실시 형태의 축전 소자의 단면도이다.
도 7은 동 실시 형태에 따른 전기 화학 디바이스의 제조 프로세스를 도시하는 모식도이다.
도 8은 동 실시 형태에 따른 전기 화학 디바이스의 제조 프로세스를 도시하는 모식도이다.
도 9는 동 실시 형태에 따른 전기 화학 디바이스의 제조 프로세스를 도시하는 모식도이다.
도 10은 동 실시 형태에 따른 전기 화학 디바이스의 제조 프로세스를 도시하는 모식도이다.
도 11은 동 실시 형태에 따른 전기 화학 디바이스의 제조 프로세스를 도시하는 모식도이다.
도 12는 본 발명의 실시예 및 비교예에 따른 전기 화학 디바이스의 프리도프 시에 있어서, 금속 리튬의 잔존 상황을 경시적으로 확인한 결과를 나타내는 표이다.
110: 축전 소자
120: 용기
130: 부극
130a: 제1 미도포 시공 영역
130b: 제2 미도포 시공 영역
131: 부극 단자
132: 부극 집전체
132a: 제1 주면
132b: 제2 주면
132c: 제1 영역
132d: 제2 영역
133: 제1 부극 활물질층
134: 제2 부극 활물질층
140: 정극
141: 정극 단자
142: 정극 집전체
142a: 제3 주면
142b: 제4 주면
143: 정극 활물질층
151: 제1 세퍼레이터
152: 제2 세퍼레이터
M: 금속 리튬
Claims (7)
- 도전성 재료를 포함하는 정극 집전체와 상기 정극 집전체 상에 형성된 정극 활물질층을 갖는 정극과,
도전성 재료를 포함하고 제1 주면과 상기 제1 주면과는 반대측의 제2 주면을 갖는 부극 집전체와, 상기 제1 주면에 형성된 제1 부극 활물질층과, 상기 제2 주면에 간헐적으로 형성되고 상기 제1 부극 활물질층보다도 부극 활물질의 밀도가 낮은 제2 부극 활물질층을 갖는 부극과,
상기 정극과 상기 부극을 절연하는 세퍼레이터와,
상기 정극, 상기 부극 및 상기 세퍼레이터를 침지하는 전해액
을 구비하고,
상기 제2 부극 활물질층이 형성되어 있지 않은 상기 제2 주면에 금속 리튬이 전기적으로 접속되고 상기 전해액에 침지됨으로써, 상기 제1 및 제2 부극 활물질층에 리튬 이온의 프리도프가 이루어져 있는
전기 화학 디바이스. - 제1항에 있어서,
상기 제2 부극 활물질층은 상기 제1 부극 활물질층보다도 부극 활물질의 밀도가 10% 이상 낮은
전기 화학 디바이스. - 제1항 또는 제2항에 있어서,
상기 제2 부극 활물질층은 상기 제1 부극 활물질층보다도 두꺼운
전기 화학 디바이스. - 제1항 또는 제2항에 있어서,
상기 제2 부극 활물질층은 상기 제1 부극 활물질층보다도 5% 이상 두꺼운
전기 화학 디바이스. - 제1항 또는 제2항에 있어서,
상기 부극 집전체는 구리를 포함하는
전기 화학 디바이스. - 제1항 또는 제2항에 있어서,
상기 부극 집전체는 복수의 관통 구멍을 갖는
전기 화학 디바이스. - 제1항 또는 제2항에 있어서,
상기 정극 및 상기 부극은 상기 세퍼레이터를 개재하여 적층되고 권회되어 있는
전기 화학 디바이스.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017062344A JP6866202B2 (ja) | 2017-03-28 | 2017-03-28 | 電気化学デバイス |
| JPJP-P-2017-062344 | 2017-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20180109703A true KR20180109703A (ko) | 2018-10-08 |
| KR102136599B1 KR102136599B1 (ko) | 2020-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020180032196A Expired - Fee Related KR102136599B1 (ko) | 2017-03-28 | 2018-03-20 | 전기 화학 디바이스 |
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| Country | Link |
|---|---|
| US (1) | US10504663B2 (ko) |
| JP (1) | JP6866202B2 (ko) |
| KR (1) | KR102136599B1 (ko) |
| CN (1) | CN108666632B (ko) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11830672B2 (en) | 2016-11-23 | 2023-11-28 | KYOCERA AVX Components Corporation | Ultracapacitor for use in a solder reflow process |
| JP6829130B2 (ja) | 2017-03-28 | 2021-02-10 | 太陽誘電株式会社 | 電気化学デバイス |
| WO2020150266A1 (en) * | 2019-01-16 | 2020-07-23 | Maxwell Technologies, Inc. | Prelithiated multilayer dry electrode and methods |
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2018
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- 2018-03-28 CN CN201810264267.XA patent/CN108666632B/zh not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| US10504663B2 (en) | 2019-12-10 |
| KR102136599B1 (ko) | 2020-07-22 |
| JP2018166139A (ja) | 2018-10-25 |
| JP6866202B2 (ja) | 2021-04-28 |
| CN108666632B (zh) | 2021-07-20 |
| CN108666632A (zh) | 2018-10-16 |
| US20180286600A1 (en) | 2018-10-04 |
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