发明授权
- 专利标题： Battery separator and lithium secondary battery
- 专利标题（中）： 电池分离器和锂二次电池
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申请号： US09709623申请日： 2000-11-10
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公开(公告)号： US06627346B1公开(公告)日： 2003-09-30
- 发明人: Masayuki Kinouchi , Tetsuo Akazawa , Takashi Oe , Ryuichiro Kogure , Kenji Kawabata , Yuuji Nakakita
- 申请人： Masayuki Kinouchi , Tetsuo Akazawa , Takashi Oe , Ryuichiro Kogure , Kenji Kawabata , Yuuji Nakakita
- 优先权： JP11-319350 19991110; JP2000-206731 20000707
- 主分类号： H01M216
- IPC分类号： H01M216
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.