发明名称 |
HIGHLY POROUS SEPARATOR FILM HAVING A COATING AND A DISCONNECTING FUNCTION |
摘要 |
The invention concerns a biaxially orientated, single- or multi-layered porous film which comprises at least one porous layer and this layer contains at least one propylene polymer and polyethylene; (i) the porosity of the porous film is 30% to 80%; and (ii) the permeability of the porous film is <1000 s (Gurley number); characterized in that (iii) the porous film comprises an inorganic, preferably ceramic coating; and (iv) the coated porous film has a Gurley number of <1500 s; and (v) the coated porous film has a Gurley number of >6000 s when it is heated for 5 minutes to over 140° C. The coated, porous film has dual safety features. Furthermore, the invention also concerns a process for the production of a film of this type as well as its use in high energy or high performance systems, in particular in lithium, lithium ion, lithium-polymer and alkaline-earth batteries. |
申请公布号 |
EP2794271(A1) |
申请公布日期 |
2014.10.29 |
申请号 |
EP20120824794 |
申请日期 |
2012.12.17 |
申请人 |
TREOFAN GERMANY GMBH & CO. KG |
发明人 |
SCHMITZ, BERTRAM;BUSCH, DETLEF;KLEIN, DOMINIC |
分类号 |
B32B27/32;B29C55/00;B29C55/12;C08J5/18;C08K5/00;C08K5/098;H01M2/14;H01M2/16 |
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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