KR20140118809A - 프리 도핑제, 이것을 이용한 축전 디바이스 및 그 제조 방법 - Google Patents
프리 도핑제, 이것을 이용한 축전 디바이스 및 그 제조 방법 Download PDFInfo
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- KR20140118809A KR20140118809A KR1020140033891A KR20140033891A KR20140118809A KR 20140118809 A KR20140118809 A KR 20140118809A KR 1020140033891 A KR1020140033891 A KR 1020140033891A KR 20140033891 A KR20140033891 A KR 20140033891A KR 20140118809 A KR20140118809 A KR 20140118809A
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Abstract
식 (1)
(식 중, M은 리튬 또는 나트륨, n은 2 내지 6 중 어느 하나의 정수, R은 탄소 원자수 1 내지 10의 지방족 탄화수소, 치환기를 가져도 좋은 방향족 탄화수소, 또는 치환기를 가져도 좋은 복소환 화합물을 의미한다)
로 표시되는 것을 특징으로 하는 알칼리 금속 이온 축전 디바이스용의 프리 도핑제, 이것을 이용한 알칼리 금속 이온 축전 디바이스, 및 그 제조 방법이 얻어졌다.
Description
도 2는 본 발명의 축전 디바이스(리튬 이온 이차 전지)의 실시형태의 일례를 도시하는 개략 단면도.
도 3은 본 발명의 축전 디바이스(리튬 이온 이차 전지)의 실시형태의 다른 일례를 도시하는 개략 단면도.
도 4는 본 발명의 일 실시형태에서의 리튬 이온 이차 전지 및 비교용 리튬 이온 이차 전지의 충방전 용량(실측값)을 도시하는 그래프.
도 5는 본 발명의 프리 도핑제(리튬 벤젠 1,3,5-트리스(티오레이트), Li3BTTA)의 충방전 반응 거동을 도시하는 그래프.
도 6은 본 발명의 프리 도핑제(리튬 부탄 1,4-비스(티오레이트), Li2BBTA)의 충방전 반응 거동을 도시하는 그래프.
도 7은 종래의 알칼리 금속 이온 축전 디바이스에 발생하는 불가역 용량에 대한 설명을 하기 위한 모식도.
Claims (12)
- 제1항에 있어서, R이 직쇄상 또는 분기상의 C2-C6 알칸, 트리아진, 벤젠, C2-C6 알킬렌카보네이트인 것 특징으로 하는 알칼리 금속 이온 축전 디바이스용의 프리 도핑제.
- 제1항 또는 제2항에 있어서, 분자량이 100 내지 550인 것을 특징으로 하는 알칼리 금속 이온 축전 디바이스용의 프리 도핑제.
- 정극 활물질을 포함하는 정극과,
C, Si, Sn, 또는 Ge, 또는 이들을 1종류 이상 포함하는 합금으로 구성되는 부극 활물질을 포함하는 부극과,
전해액과,
제1항 또는 제2항에 기재된 프리 도핑제
를 포함하는 것을 특징으로 하는 알칼리 금속 이온 축전 디바이스. - 제4항에 있어서, 상기 프리 도핑제는, 상기 전해액에 첨가되어 있는 것을 특징으로 하는 알칼리 금속 이온 축전 디바이스.
- 제5항에 있어서, 상기 프리 도핑제는, 상기 전해액에 대하여 0.04 몰 농도 내지 0.25 몰 농도로 첨가되어 있는 것을 특징으로 하는 알칼리 금속 이온 축전 디바이스.
- 제4항에 있어서, 상기 프리 도핑제는, 상기 정극의 재료에 첨가되어 있는 것을 특징으로 하는 알칼리 금속 이온 축전 디바이스.
- 제7항에 있어서, 상기 프리 도핑제는, 상기 정극 활물질에 대하여 0.01 질량% 내지 20 질량%의 비율로 첨가되어 있는 것을 특징으로 하는 알칼리 금속 이온 축전 디바이스.
- 제4항에 있어서, 상기 프리 도핑제의 용량 밀도는, 상기 정극 활물질보다 50 mAh/g 이상 큰 것을 특징으로 하는 알칼리 금속 이온 축전 디바이스.
- 제4항에 있어서, 초기 충전에 의해, 상기 프리 도핑제는, 정극상에서 산화 분해되고, 이것에 의해 얻어진 분해 생성물 유래의 피막에 의해 정극이 피복되어 있는 것을 특징으로 하는 알칼리 금속 이온 축전 디바이스.
- 정극 활물질을 포함하는 정극과,
C, Si, Sn, 또는 Ge, 또는 이들을 1종류 이상 포함하는 합금으로 구성되는 부극 활물질을 포함하는 부극과,
전해액
을 포함하는 알칼리 금속 이온 축전 디바이스의 제조 방법으로서, 제1항 또는 제2항에 기재된 프리 도핑제를 첨가하고, 초기 충전을 행함으로써, 상기 프리 도핑제를 정극상에서 산화 분해시키는 것을 특징으로 하는 알칼리 금속 이온 축전 디바이스의 제조 방법. - 제11항에 있어서, 상기 초기 충전에 의해, 정극상에, 상기 프리 도핑제의 산화 분해 생성물에 의한 피막이 형성되는 것을 특징으로 하는 알칼리 금속 이온 축전 디바이스의 제조 방법.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013073776A JP6218413B2 (ja) | 2013-03-29 | 2013-03-29 | プレドープ剤、これを用いた蓄電デバイス及びその製造方法 |
| JPJP-P-2013-073776 | 2013-03-29 |
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| Publication Number | Publication Date |
|---|---|
| KR20140118809A true KR20140118809A (ko) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020140033891A Ceased KR20140118809A (ko) | 2013-03-29 | 2014-03-24 | 프리 도핑제, 이것을 이용한 축전 디바이스 및 그 제조 방법 |
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| Country | Link |
|---|---|
| US (1) | US9847528B2 (ko) |
| EP (1) | EP2784845B1 (ko) |
| JP (1) | JP6218413B2 (ko) |
| KR (1) | KR20140118809A (ko) |
| CN (1) | CN104078708B (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180088914A (ko) * | 2016-01-22 | 2018-08-07 | 아사히 가세이 가부시키가이샤 | 리튬 이온 2 차 전지 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017126691A1 (ja) * | 2016-01-22 | 2017-07-27 | 旭化成株式会社 | 非水系リチウム型蓄電素子 |
| TWI628680B (zh) | 2016-01-22 | 2018-07-01 | 旭化成股份有限公司 | 非水系鋰型蓄電元件 |
| KR101968886B1 (ko) * | 2016-01-22 | 2019-04-12 | 아사히 가세이 가부시키가이샤 | 비수계 리튬형 축전 소자 |
| KR101903939B1 (ko) | 2016-01-22 | 2018-10-02 | 아사히 가세이 가부시키가이샤 | 정극 전구체 |
| TWI629819B (zh) | 2016-01-22 | 2018-07-11 | 旭化成股份有限公司 | Non-aqueous lithium storage element |
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- 2014-03-26 US US14/226,282 patent/US9847528B2/en active Active
- 2014-03-27 CN CN201410120498.5A patent/CN104078708B/zh active Active
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| KR20180088914A (ko) * | 2016-01-22 | 2018-08-07 | 아사히 가세이 가부시키가이샤 | 리튬 이온 2 차 전지 |
| KR20180128985A (ko) * | 2016-01-22 | 2018-12-04 | 아사히 가세이 가부시키가이샤 | 리튬 이온 2 차 전지 |
| US11038173B2 (en) | 2016-01-22 | 2021-06-15 | Asahi Kasei Kabushiki Kaisha | Lithium ion secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2784845B1 (en) | 2018-07-18 |
| JP6218413B2 (ja) | 2017-10-25 |
| CN104078708B (zh) | 2018-04-13 |
| JP2014199723A (ja) | 2014-10-23 |
| EP2784845A1 (en) | 2014-10-01 |
| US20140292281A1 (en) | 2014-10-02 |
| CN104078708A (zh) | 2014-10-01 |
| US9847528B2 (en) | 2017-12-19 |
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