发明名称 |
BATTERY SEPARATOR, AND METHOD FOR PRODUCING SAME |
摘要 |
<p>Provided is a battery separator, comprising a porous membrane A comprising a polyolefin resin, and a porous membrane B laminated thereon comprising a fluororesin and inorganic particles or cross-linked polymer particles, wherein the particles are contained in an amount of 80 wt% to 97 wt% of the porous membrane B and have an average diameter being not less than 1.5 times and less than 50 times the average pore size of the porous membrane A, and a specific expression 1 and a specific expression 2 are satisfied. Provided is a battery separator having excellent heat resistance and processability (electrolyte permeability, low curling properties) and being characterized in that the air resistance increase due to lamination of a heat resistant resin is extremely small.</p> |
申请公布号 |
EP2736095(A1) |
申请公布日期 |
2014.05.28 |
申请号 |
EP20130776340 |
申请日期 |
2013.03.28 |
申请人 |
TORAY BATTERY SEPARATOR FILM CO., LTD. |
发明人 |
MIZUNO, NAOKI;IRIE, MICHIHIKO;SHIMIZU, KEN |
分类号 |
H01M2/16;B32B27/32;H01M2/14;H01M10/0525 |
主分类号 |
H01M2/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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