Polyolefin microporous film and method for preparing the same
    19.
    发明授权
    Polyolefin microporous film and method for preparing the same 有权
    聚烯烃微孔膜及其制备方法

    公开(公告)号:US06566012B1

    公开(公告)日:2003-05-20

    申请号:US09673455

    申请日:2000-12-01

    IPC分类号: H01M216

    CPC分类号: B01D71/26 H01M2/1653

    摘要: It is an object of the present invention to provide a microporous polyolefin membrane, high in pin puncture strength, adequate in pore diameter and high in porosity, comprising (A) an ultra-high-molecular-weight polyolefin having a weight-average molecular weight of 5×105 or more, or (B) a composition containing an ultra-high-molecular-weight polyolefin having a weight-average molecular weight of 5×105 or more, and having a porosity of 30 to 95%, bubble point exceeding 980 KPa and pin puncture strength of 4,900 mN/25 &mgr;m or more. The membrane can be used as a filter or as a separator for a battery.

    摘要翻译: 本发明的目的是提供一种具有高的孔径和孔隙率高的针穿刺强度的微孔聚烯烃膜,其包含(A)具有重均分子量的超高分子量聚烯烃 为5×10 5以上,或者(B)含有重均分子量为5×10 5以上,孔隙率为30〜95%,泡点超过980KPa的超高分子量聚烯烃的组合物, 穿刺强度为4900mN / 25mum以上。 膜可以用作电池的过滤器或隔膜。

    Thin aprotic electrolyte films, immobilized liquid membrane conductors, and batteries
    20.
    发明授权
    Thin aprotic electrolyte films, immobilized liquid membrane conductors, and batteries 有权
    薄非质子电解质膜,固定液膜导体和电池

    公开(公告)号:US06218053B1

    公开(公告)日:2001-04-17

    申请号:US09230174

    申请日:1999-05-26

    IPC分类号: H01M618

    摘要: The present invention provides a thin film of non-protonic electrolyte and electrolyte-immobilized liquid-film conductor, easily produced into a thin film and to have a large area, securely holding the non-protonic electrolytic solution over a wide temperature range, and showing stability for extended periods and improved mechanical strength. They comprise a polyolefin film with a solvent-resistant polyolefin as the basic component, which is impregnated with the non-protonic electrolytic solution to immobilize it. The polyolefin composition for the film contains a terminal-modified polypropylene having, in the terminal chain, a functional group showing an affinity for the solvent for the electrolytic solution for the thin film of non-protonic electrolyte, and further contains an electron-conductive substance in addition to the terminal-modified polypropylene for the electrolyte-immobilized liquid-film conductor. As a result, the polyolefin film stably holds the solvent for the electrolytic solution. The present invention also provides a battery which uses the above thin film of non-protonic electrolyte and/or electrolyte-immobilized liquid-film conductor.

    摘要翻译: 本发明提供一种非质子电解质和电解质固定液膜导体的薄膜,容易制成薄膜并具有大的面积,在宽的温度范围内可靠地保持非质子电解液,并且显示出 长时间的稳定性和机械强度的提高。 它们包括具有耐溶剂聚烯烃作为基本组分的聚烯烃膜,其用非质子电解溶液浸渍以固定它。 用于该膜的聚烯烃组合物含有末端改性聚丙烯,其在末端链中具有对非质子电解质薄膜的电解液的溶剂的亲和性的官能团,并且还含有电子传导性物质 除了用于固定电解质的液膜导体的末端改性聚丙烯。 结果,聚烯烃膜稳定地保持电解液的溶剂。 本发明还提供一种使用上述非质子电解质和/或电解质固定液膜导体薄膜的电池。