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公开(公告)号:US06627346B1
公开(公告)日:2003-09-30
申请号:US09709623
申请日:2000-11-10
申请人: Masayuki Kinouchi , Tetsuo Akazawa , Takashi Oe , Ryuichiro Kogure , Kenji Kawabata , Yuuji Nakakita
发明人: Masayuki Kinouchi , Tetsuo Akazawa , Takashi Oe , Ryuichiro Kogure , Kenji Kawabata , Yuuji Nakakita
IPC分类号: H01M216
CPC分类号: H01M2/1686 , H01M2/166 , H01M10/0525
摘要: A battery separator favorably employable for lithium secondary battery comprises at least one porous film in which 100 to 40,000 ppm of particles of silicon dioxide, aluminum oxide, magnesium oxide, zinc oxide or metal oxides containing at least two metal elements selected from the group consisting of Si, Al, Mg and Zn having a mean diameter of 0.1 to 10 &mgr;m are dispersed in a porous resin matrix.
摘要翻译: 优选用于锂二次电池的电池隔板包括至少一个多孔膜,其中100至40,000ppm的二氧化硅,氧化铝,氧化镁,氧化锌或金属氧化物的颗粒含有至少两种选自以下的金属元素: 将平均直径为0.1〜10μm的Si,Al,Mg,Zn分散在多孔树脂基体中。