KR100687159B1 - 고체 전해질 전지 - Google Patents
고체 전해질 전지 Download PDFInfo
- Publication number
- KR100687159B1 KR100687159B1 KR1020000028263A KR20000028263A KR100687159B1 KR 100687159 B1 KR100687159 B1 KR 100687159B1 KR 1020000028263 A KR1020000028263 A KR 1020000028263A KR 20000028263 A KR20000028263 A KR 20000028263A KR 100687159 B1 KR100687159 B1 KR 100687159B1
- Authority
- KR
- South Korea
- Prior art keywords
- solid electrolyte
- separator
- cell according
- positive electrode
- negative electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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Images
Classifications
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- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
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Abstract
Description
세퍼레이터 (24)의 멜트다운 온도가 폴리에틸렌 세퍼레이터의 멜트다운 온도 보다 10 ℃ 미만으로 더 높은 경우, 멜트다운 온도를 상승시키는 본 발명의 효과는 만족스럽게 얻을 수 없다. 세퍼레이터 (24)의 멜트다운 온도가 폴리에틸렌 세퍼레이터의 멜트다운 온도 보다 30 ℃ 이하로 더 높은 이유는 하기에 설명될 것이다. 폴리프로필렌 세퍼레이터와 폴리에틸렌 세퍼레이터의 멜트다운 온도 차이는 약 30 ℃이다.
재료 | 공공율(%) | 두께(㎛) | 파단 강도 (㎏/㎤) | 파단 신도 (%) | |
실시예 1 | 폴리에틸렌 | 36 | 8 | 739 | 161 |
실시예 2 | 폴리에틸렌 | 37 | 9 | 1185 | 156 |
실시예 3 | 폴리에틸렌 | 35 | 10 | 1300 | 164 |
실시예 4 | 폴리에틸렌 | 30 | 12 | 1409 | 170 |
실시예 5 | 폴리에틸렌 | 39 | 15 | 1179 | 137 |
실시예 6 | 폴리프로필렌 | 36 | 8 | 1650 | 139 |
실시예 7 | 폴리프로필렌 | 36 | 16 | 1946 | 127 |
초기 충전 용량 (mAh/g) | 초기 방전 용량 (mAh/g) | 충전 및 방전 효율(%) | 에너지 밀도 (Wh/l) | |
실시예 1 | 710 | 611 | 86 | 332 |
실시예 2 | 709 | 608 | 86 | 331 |
실시예 3 | 711 | 606 | 85 | 330 |
실시예 4 | 708 | 609 | 86 | 331 |
실시예 5 | 710 | 606 | 85 | 330 |
실시예 6 | 497 | 352 | 71 | 189 |
실시예 7 | 512 | 355 | 69 | 191 |
비교예 1 | 1503 | 349 | 23 | 187 |
셧다운 시작 온도 (℃) | 외부 단락이 일어났을 때의 전지 표면의 온도 (℃) | |
실시예 1 | 126 | 118 |
실시예 2 | 126 | 119 |
실시예 3 | 125 | 117 |
실시예 4 | 126 | 118 |
실시예 5 | 123 | 116 |
실시예 6 | 163 | 161 |
실시예 7 | 165 | 165 |
비교예 1 | - | 200 이상 |
실시예 8 | 실시예 9 | 비교예 2 | |
140 ℃ | O | O | O |
145 ℃ | O | O | O |
150 ℃ | O | O | X |
155 ℃ | O | O | X |
160 ℃ | O | O | X |
165 ℃ | O | O | X |
170 ℃ | X | X | X |
실시예 8 | 실시예 9 | 비교예 2 | |
135 ℃ | O | O | O |
140 ℃ | O | O | X |
145 ℃ | O | O | X |
150 ℃ | X | O | X |
155 ℃ | X | X | X |
Claims (38)
- 양극,양극과 대향하도록 배치된 음극,양극과 음극 사이에 배치된 세퍼레이터, 및양극과 세퍼레이터 사이 및 세퍼레이터와 음극 사이에 각각 존재하는 고체 전해질을 포함하며,상기 고체 전해질은 1:5 내지 1:10 비율의 중합체와 팽윤 용매의 혼합물을 포함하고,상기 세퍼레이터는 두께가 5 ㎛ 내지 15 ㎛ 범위이며 공공(空孔)율이 25% 내지 60% 범위인 폴리올레핀 다공질 막으로 제조되고, 고체 전해질 전지의 온도가 100 ℃ 내지 160 ℃ 범위인 경우 상기 고체 전해질 전지의 임피던스는 실온시보다 높으며,상기 고체 전해질의 두께는 5 ㎛ 내지 19 ㎛인 것을 특징으로 하는 고체 전해질 전지.
- 제1항에 있어서, 다공질 폴리올레핀 막이 폴리에틸렌을 함유하는 고체 전해질 전지.
- 삭제
- 제1항에 있어서, 전극이 전극 반응 종으로서 리튬 이온이 사용되는 양극 및 탄소 재료가 사용되는 음극을 포함하는 고체 전해질 전지.
- 제1항에 있어서, 고체 전해질이 에틸렌 카르보네이트, 프로필렌 카르보네이트 및 LiPF6를 함유하는 겔 전해질인 고체 전해질 전지.
- 제5항에 있어서, 고체 전해질이 비닐렌 카르보네이트 및(또는) 2,4-디플루오로아니솔을 더 함유하는 겔 전해질인 고체 전해질 전지.
- 제6항에 있어서, 비닐렌 카르보네이트 및 2,4-디플루오로아니솔 각각의 함량이 고체 전해질 총중량의 5 중량% 이하인 고체 전해질 전지.
- 제7항에 있어서, 폴리비닐리덴 플루오라이드 또는 비닐리덴 플루오라이드의 공중합체를 포함하는 겔 전해질이 사용되는 고체 전해질 전지.
- 제8항에 있어서, 비닐리덴 플루오라이드 및 헥사플루오로프로필렌을 함유하는 공중합체가 사용되는 고체 전해질 전지.
- 제9항에 있어서, 겔 전해질이 비닐리덴 플루오라이드 및 8 중량% 미만의 양으로 함유된 헥사플루오로프로필렌으로 제조된 공중합체를 포함하는 것인 고체 전해질 전지.
- 양극,양극과 대향하도록 배치된 음극,양극과 음극 사이에 배치된 세퍼레이터, 및양극과 세퍼레이터 사이 및 세퍼레이터와 음극 사이에 각각 존재하는 고체 전해질을 포함하며,상기 세퍼레이터는 두께가 5 ㎛ 내지 15 ㎛ 범위이며, 공공율이 25% 내지 60% 범위인 폴리올레핀 다공질 막으로 제조되고, 파단 강도가 739 ㎏/㎠ 이상 1650 ㎏/㎠ 미만이며, 파단 신도가 135% 내지 170%인 것을 특징으로 하는 고체 전해질 전지.
- 제11항에 있어서, 다공질 폴리올레핀 막이 폴리에틸렌을 함유하는 고체 전해질 전지.
- 제11항에 있어서, 고체 전해질이 팽윤 용매를 함유하는 겔 전해질인 고체 전해질 전지.
- 제11항에 있어서, 전극이 전극 반응 종으로서 리튬 이온이 사용되는 양극 및 탄소 재료가 사용되는 음극을 포함하는 고체 전해질 전지.
- 제13항에 있어서, 고체 전해질이 에틸렌 카르보네이트, 프로필렌 카르보네이트 및 LiPF6를 함유하는 겔 전해질인 고체 전해질 전지.
- 제15항에 있어서, 고체 전해질이 비닐렌 카르보네이트 및(또는) 2,4-디플루오로아니솔을 더 함유하는 겔 전해질인 고체 전해질 전지.
- 제16항에 있어서, 비닐렌 카르보네이트 및 2,4-디플루오로아니솔 각각의 함량이 고체 전해질 총중량의 5 중량% 이하인 고체 전해질 전지.
- 제17항에 있어서, 폴리비닐리덴 플루오라이드 또는 비닐리덴 플루오라이드의 공중합체를 포함하는 겔 전해질이 사용되는 고체 전해질 전지.
- 제18항에 있어서, 비닐리덴 플루오라이드 및 헥사플루오로프로필렌을 함유하는 공중합체가 사용되는 고체 전해질 전지.
- 제19항에 있어서, 겔 전해질이 비닐리덴 플루오라이드 및 8 중량% 미만의 양으로 함유된 헥사플루오로프로필렌으로 제조된 공중합체를 포함하는 것인 고체 전해질 전지.
- 양극,양극과 대향하도록 배치된 음극,양극과 음극 사이에 배치된 세퍼레이터, 및양극과 세퍼레이터 사이 및 세퍼레이터와 음극 사이에 각각 존재하는 고체 전해질을 포함하며,상기 세퍼레이터는 폴리에틸렌과 폴리프로필렌의 혼합 재료로 제조되며, 이 폴리올레핀 다공질 막의 두께는 5 ㎛ 내지 15 ㎛ 범위이며, 셧다운 온도는 폴리에틸렌으로 제조된 세퍼레이터의 셧다운 온도와 실질적으로 동일하며, 멜트다운 온도는 폴리프로필렌으로 제조된 세퍼레이터의 멜트다운 온도 보다 10 ℃ 내지 30 ℃ 더 높은 것을 특징으로 하는 고체 전해질 전지.
- 제21항에 있어서, 고체 전해질이 팽윤 용매를 함유하는 겔 전해질인 고체 전해질 전지.
- 제21항에 있어서, 전극이 전극 반응 종으로서 리튬 이온이 사용되는 양극 및 탄소 재료가 사용되는 음극을 포함하는 고체 전해질 전지.
- 제22항에 있어서, 고체 전해질이 에틸렌 카르보네이트, 프로필렌 카르보네이트 및 LiPF6를 함유하는 겔 전해질인 고체 전해질 전지.
- 제24항에 있어서, 고체 전해질이 비닐렌 카르보네이트 및(또는) 2,4-디플루오로아니솔을 더 함유하는 겔 전해질인 고체 전해질 전지.
- 제25항에 있어서, 비닐렌 카르보네이트 및 2,4-디플루오로아니솔 각각의 함량이 고체 전해질 총중량의 5 중량% 이하인 고체 전해질 전지.
- 제26항에 있어서, 폴리비닐리덴 플루오라이드 또는 비닐리덴 플루오라이드의 공중합체를 포함하는 겔 전해질이 사용되는 고체 전해질 전지.
- 제27항에 있어서, 비닐리덴 플루오라이드 및 헥사플루오로프로필렌을 함유하는 공중합체가 사용되는 고체 전해질 전지.
- 제28항에 있어서, 겔 전해질이 비닐리덴 플루오라이드 및 8 중량% 미만의 양으로 함유된 헥사플루오로프로필렌으로 제조된 공중합체를 포함하는 것인 고체 전해질 전지.
- 양극,양극과 대향하도록 배치된 음극,양극과 음극 사이에 배치된 세퍼레이터, 및양극과 세퍼레이터 사이 및 세퍼레이터와 음극 사이에 각각 존재하는 고체 전해질을 포함하며,상기 세퍼레이터는 폴리에틸렌으로 제조된 제1 세퍼레이터와 폴리프로필렌으로 제조된 제2 세퍼레이터를 서로 부착하여 형성시키며, 세퍼레이터의 두께는 5 ㎛ 내지 15 ㎛ 범위이며, 셧다운 온도는 폴리에틸렌으로 제조된 세퍼레이터의 셧다운 온도와 실질적으로 동일하며, 멜트다운 온도는 폴리프로필렌으로 제조된 세퍼레이터의 멜트다운 온도와 실질적으로 동일한 것을 특징으로 하는 고체 전해질 전지.
- 제30항에 있어서, 고체 전해질이 팽윤 용매를 함유하는 겔 전해질인 고체 전해질 전지.
- 제30항에 있어서, 전극이 전극 반응 종으로서 리튬 이온이 사용되는 양극 및 탄소 재료가 사용되는 음극을 포함하는 고체 전해질 전지.
- 제31항에 있어서, 고체 전해질이 에틸렌 카르보네이트, 프로필렌 카르보네이트 및 LiPF6를 함유하는 겔 전해질인 고체 전해질 전지.
- 제33항에 있어서, 고체 전해질이 비닐렌 카르보네이트 및(또는) 2,4-디플루오로아니솔을 더 함유하는 겔 전해질인 고체 전해질 전지.
- 제34항에 있어서, 비닐렌 카르보네이트 및 2,4-디플루오로아니솔 각각의 함량이 고체 전해질 총중량의 5 중량% 이하인 고체 전해질 전지.
- 제35항에 있어서, 폴리비닐리덴 플루오라이드 또는 비닐리덴 플루오라이드의 공중합체를 포함하는 겔 전해질이 사용되는 고체 전해질 전지.
- 제36항에 있어서, 비닐리덴 플루오라이드 및 헥사플루오로프로필렌을 함유하는 공중합체가 사용되는 고체 전해질 전지.
- 제37항에 있어서, 겔 전해질이 비닐리덴 플루오라이드 및 8 중량% 미만의 양으로 함유된 헥사플루오로프로필렌으로 제조된 공중합체를 포함하는 것인 고체 전해질 전지.
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JP14665399 | 1999-05-26 | ||
JP99-146653 | 1999-05-26 | ||
JP36506499A JP4075259B2 (ja) | 1999-05-26 | 1999-12-22 | 固体電解質二次電池 |
JP99-365064 | 1999-12-22 |
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US (4) | US7183021B1 (ko) |
EP (1) | EP1056142B1 (ko) |
JP (1) | JP4075259B2 (ko) |
KR (1) | KR100687159B1 (ko) |
CN (1) | CN1160811C (ko) |
CA (1) | CA2309410C (ko) |
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DE60000672T2 (de) | 2003-09-18 |
CA2309410C (en) | 2017-01-10 |
US7183021B1 (en) | 2007-02-27 |
US7070885B2 (en) | 2006-07-04 |
JP2001043897A (ja) | 2001-02-16 |
US20050037257A1 (en) | 2005-02-17 |
CA2309410A1 (en) | 2000-11-26 |
DE60000672D1 (de) | 2002-12-05 |
EP1056142A1 (en) | 2000-11-29 |
US20050031937A1 (en) | 2005-02-10 |
EP1056142B1 (en) | 2002-10-30 |
US7214450B2 (en) | 2007-05-08 |
JP4075259B2 (ja) | 2008-04-16 |
KR20000077418A (ko) | 2000-12-26 |
US7432019B2 (en) | 2008-10-07 |
US20050053830A1 (en) | 2005-03-10 |
TW484243B (en) | 2002-04-21 |
CN1275816A (zh) | 2000-12-06 |
CN1160811C (zh) | 2004-08-04 |
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