发明名称 |
MEMBRANE FILM FOR BATTERIES, HAVING A SHUT-OFF FUNCTION |
摘要 |
<p>The invention relates to a biaxially oriented microporous film composed of at least two coextruded layers encompassing an external shut-off layer and another layer, wherein both layers contain a mixture of propylene homopolymer and propylene block copolymer andβ-nucleation agent. The propylene block copolymer I of the other layer has a melting point exceeding 140° C. and the propylene block copolymer II of the external shut-off layer has a melting range starting at a temperature ranging from 50 to 120° C. The melting point of the propylene block copolymer I is greater than the melting point of the propylene block copolymer II. The film can be used as a separator in a primary or secondary battery.</p> |
申请公布号 |
KR20110009125(A) |
申请公布日期 |
2011.01.27 |
申请号 |
KR20107024674 |
申请日期 |
2009.04.23 |
申请人 |
TREOFAN GERMANY GMBH & CO. KG |
发明人 |
PETERS CHRISTIAN;MOHR THILO;BUSCH DETLEF;SCHMITZ BERTRAM |
分类号 |
B32B27/32;B32B27/18;C08J5/18;H01M2/14 |
主分类号 |
B32B27/32 |
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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