- 专利标题： Polyolefin microporous membrane, separator for non-aqueous secondary battery, non-aqueous secondary battery and method of producing polyolefin microporous membrane
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申请号： US13382607申请日： 2011-03-23
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公开(公告)号： US09680142B2公开(公告)日： 2017-06-13
- 发明人: Hiroki Sano , Satoshi Nishikawa , Takashi Yoshitomi
- 申请人： Hiroki Sano , Satoshi Nishikawa , Takashi Yoshitomi
- 申请人地址： JP Osaka
- 专利权人： TEIJIN LIMITED
- 当前专利权人： TEIJIN LIMITED
- 当前专利权人地址： JP Osaka
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2010-066116 20100323; JP2010-066117 20100323
- 国际申请： PCT/JP2011/057042 WO 20110323
- 国际公布： WO2011/118660 WO 20110929
- 主分类号： H01M2/16
- IPC分类号： H01M2/16 ; B29C47/00 ; B29C47/88
摘要：
A polyolefin microporous membrane, the membrane having, when measured by DSC, a degree of crystallinity of from 65 to 85%, a lamellar crystal/crystal ratio of from 30 to 85%, a crystal length of from 5 nm to 50 nm and an amorphous length of from 3 nm to 30 nm, and a polyolefin microporous membrane, the membrane having, when measured by X-ray diffractometry, crystal size of from 12.5 nm to 13.5 nm and a degree of crystallinity of from 64 to 68%.
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