公开(公告)号：EP2689484B1

公开(公告)日：2017-05-03

申请号：EP12796088

申请日：2012-06-06

Applicant: SHENZHEN BYD AUTO R&D CO LTD ,  BYD CO LTD

Inventor： LIN MIAOYUN ,  YOU ZHEN ,  YU WEICHENG ,  LUO MINGJUN ,  LIU HUIQUAN

IPC: H01M2/16 ,  H01M10/0525

CPC classification number: H01M2/162 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/0525

公开(公告)号：EP2689484A4

公开(公告)日：2014-11-26

申请号：EP12796088

申请日：2012-06-06

Applicant: SHENZHEN BYD AUTO R & D CO LTD ,  BYD CO LTD

Inventor： LIN MIAOYUN ,  YOU ZHEN ,  YU WEICHENG ,  LUO MINGJUN ,  LIU HUIQUAN

IPC: H01M2/16 ,  H01M10/0525

CPC classification number: H01M2/162 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/0525

公开(公告)号：EP2367880A4

公开(公告)日：2012-05-30

申请号：EP09832898

申请日：2009-11-18

Applicant: BYD CO LTD

Inventor： LUO MINGJUN ,  YOU ZHEN ,  LIU HUIQUAN

IPC: C08L23/06 ,  C08J5/18 ,  C08L23/02 ,  C08L23/04

CPC classification number: C08J5/18 ,  C08J2323/06 ,  C08K5/01 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2207/062 ,  C08L2207/066 ,  C08L2207/068 ,  C08L2207/32 ,  Y10T428/249953

Abstract: A microporous film comprises a first component comprising a super high molecular weight polyolefin resin, wherein the weight-average molecular weight of the super high molecular weight polyolefin is about 1×106 to about 6×106. The microporous film also comprises a second component comprising a polyolefin resin, wherein the weight-average molecular weight of the polyolefin resin is less than about 5×105. A method of producing a microporous film comprises melting a first polyolefin resin which is a super high molecular weight polyolefin resin in a solvent to form a first mixture, and adding to the first mixture a second polyolefin resin having a weight-average molecular weight of the less than about 5×105 to form a second mixture. The method also comprises forming the second mixture into a film, and removing the solvent from the film to form the microporous film