KR20080036105A - 비수계 2 차 전지용 세퍼레이터 및 그 제조 방법 - Google Patents
비수계 2 차 전지용 세퍼레이터 및 그 제조 방법 Download PDFInfo
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- KR20080036105A KR20080036105A KR1020087004249A KR20087004249A KR20080036105A KR 20080036105 A KR20080036105 A KR 20080036105A KR 1020087004249 A KR1020087004249 A KR 1020087004249A KR 20087004249 A KR20087004249 A KR 20087004249A KR 20080036105 A KR20080036105 A KR 20080036105A
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Abstract
Description
폴리올레핀 미다공막 제조회사 | 재질 | 막 두께㎛ | 겉보기 중량중량 g/㎡ | 투기도(단위 두께 당) 초/100cc·㎛ | 구멍직경㎛ | 전지성능 % | 셧 다운 특성 | ||
셧다운 온도 ℃ | 멜트다운 온도℃ | ||||||||
A | 토넨 | PE | 21 | 12.3 | 25 | 0.1 | 92 | 137 | 152 |
B | 토넨 | PE | 17 | 10.7 | 25 | 0.1 | 94 | 138 | 152 |
C | 아사히 화성 | PE | 18 | 8.5 | 5.4 | 0.3 | 95 | 148 | 158 |
샘플 NO. | 폴리올레핀 미다공막 | 투기도 변화 (배) | 셧 다운 특성 | |
셧 다운 온도 ℃ | 멜트 다운 온도 ℃ | |||
1 | A | 1.8 | 141 | >250 |
2 | B | 1.4 | 141 | >250 |
3 | C | 2.8 | 셧 다운 능력 없음 |
샘플 NO. | 도포량 (양면 합계) g/㎡ | 투기도 변화 (배) | 전지 성능 % | 셧 다운 특성 | |
셧 다운 온도 ℃ | 멜트 다운 온도 ℃ | ||||
4 | 0.5 | 1.1 | 94 | 139 | 173 |
5 | 1.8 | 1.4 | 94 | 141 | >250 |
6 | 2.4 | 1.6 | 93 | 145 | >250 |
7 | 4.5 | 2.1 | 75 | 셧 다운 능력 없음 |
샘플 NO. | 공급량 | 도포 중량 g/㎡ | 도포 두께 ㎛ | 컬의 유무 | |||
표면 | 이면 | 표면 | 이면 | 표면 | 이면 | ||
8 | 1.0 | 1.0 | 1.0 | 1.0 | 1.5 | 1.5 | 무 |
9 | 1.0 | 0.8 | 1.1 | 0.8 | 1.6 | 1.2 | 무 |
10 | 1.0 | 0.5 | 1.2 | 0.4 | 1.8 | 0.6 | 유 |
11 | 1.0 | 0 | 1.4 | 0 | 2.0 | 0 | 유 |
Claims (7)
- 단위 두께 당 투기도(透氣度) (JIS P8117) 가 15초/100cc·㎛ 이상, 50초/100cc·㎛ 이하이고 막 두께가 5㎛ 이상 25㎛ 이하인 폴리올레핀 미(微)다공막의 양면에 폴리메타페닐렌이소프탈아미드로 이루어지는 다공질층이 피복되어 일체화된 복합 다공막으로서, 그 복합 다공막의 막 두께는 6㎛ 이상 35㎛ 이하이며, 또한 투기도 (JIS P8117) 가 그 폴리올레핀 미다공막의 1.01배 이상 2.00배 이하이며, 폴리메타페닐렌이소프탈아미드의 도포량이 1.0g/㎡ 이상 4.0g/㎡ 이하인 것을 특징으로 하는 비수계 2 차 전지용 세퍼레이터.
- 제 1 항에 있어서,그 폴리올레핀 미다공막의 구멍 직경이 0.01㎛ 이상 0.2㎛ 이하인 것을 특징으로 하는 비수계 2 차 전지용 세퍼레이터.
- 제 1 항 또는 제 2 항에 있어서,폴리메타페닐렌이소프탈아미드의 도포량에 있어서, │표면의 도포량-이면의 도포량│/(표면의 도포량+이면의 도포량) 이 0 이상 0.2 이하인 것을 특징으로 하는 비수계 2 차 전지용 세퍼레이터.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,그 폴리올레핀 미다공막이, 폴리에틸렌을 주체로 하는 폴리올레핀 미다공막인 비수계 2 차 전지용 세퍼레이터.
- 제 1 항 또는 제 2 항에 있어서,(1) 아미드계 용제를 주체로 하는 용제에 폴리메타페닐렌이소프탈아미드를 용해시켜 고분자 용액을 제조하는 공정(2) 그 고분자 용액을 폴리올레핀 미다공막의 양면에 도포하는 공정(3) 고분자 용액의 도포된 폴리올레핀 미다공막을 반송하는 공정(4) 고분자 용액의 도포된 폴리올레핀 미다공막을 그 용제와 물로 이루어지는 응고액 중에 표리 양면이 응고액과 접하도록 침지시켜 폴리메타페닐렌이소프탈아미드를 응고시키는 공정(5) 응고된 복합막을 수세하는 공정(6) 수세된 복합막을 건조 공정이상의 공정을 순서대로 거침으로써 제조되는 비수 전지용 세퍼레이터의 제조 방법.
- 제 5 항에 있어서,그 고분자 용액이 상분리제를 함유하고, 그 농도가 5∼50 중량% 인 것을 특징으로 하는 비수계 2 차 전지용 세퍼레이터의 제조 방법.
- 제 5 항 또는 제 6 항에 있어서,그 응고액 중의 물의 비율이 30∼80 중량% 인 것을 특징으로 하는 비수계 2 차 전지용 세퍼레이터의 제조 방법.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2005/013984 WO2007013179A1 (ja) | 2005-07-25 | 2005-07-25 | 非水系二次電池用セパレータ及びその製造方法 |
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Publication Number | Publication Date |
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KR20080036105A true KR20080036105A (ko) | 2008-04-24 |
KR100969183B1 KR100969183B1 (ko) | 2010-07-09 |
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KR1020087004249A KR100969183B1 (ko) | 2005-07-25 | 2005-07-25 | 비수계 2 차 전지용 세퍼레이터 및 그 제조 방법 |
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US (1) | US8409747B2 (ko) |
JP (1) | JP4291392B2 (ko) |
KR (1) | KR100969183B1 (ko) |
CN (1) | CN101228650B (ko) |
WO (1) | WO2007013179A1 (ko) |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2003114646A (ja) | 2001-08-03 | 2003-04-18 | Semiconductor Energy Lab Co Ltd | 表示装置及びその駆動方法。 |
JP5196780B2 (ja) * | 2005-12-22 | 2013-05-15 | 旭化成イーマテリアルズ株式会社 | 多層多孔膜およびその製造方法 |
US8231999B2 (en) * | 2008-02-06 | 2012-07-31 | Sony Corporation | Separator and battery using the same |
JP2009199730A (ja) * | 2008-02-19 | 2009-09-03 | Panasonic Corp | 非水電解質二次電池 |
WO2012029699A1 (ja) * | 2010-09-02 | 2012-03-08 | 東レ株式会社 | 複合多孔質膜及びその製造方法 |
WO2012057037A1 (ja) * | 2010-10-29 | 2012-05-03 | 帝人株式会社 | 非水電解質電池用セパレータ及び非水電解質二次電池 |
US9431641B2 (en) * | 2011-04-08 | 2016-08-30 | Teijin Limited | Separator for nonaqueous secondary battery, and nonaqueous secondary battery |
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CN101228650A (zh) | 2008-07-23 |
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US8409747B2 (en) | 2013-04-02 |
JPWO2007013179A1 (ja) | 2009-02-05 |
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