公开(公告)号：EP3493297A1

公开(公告)日：2019-06-05

申请号：EP17845206.6

申请日：2017-08-14

Applicant: BYD Company Limited

Inventor： HU, Jialing ,  SHAN, Jun ,  WU, Jinxiang ,  HE, Long

IPC: H01M2/16 ,  H01M2/14 ,  H01M10/052

Abstract: The disclosure relates to the field of lithium-ion batteries, and discloses a polymer composite membrane and a method for preparing same. The disclosure further includes a lithium-ion battery for which the foregoing polymer composite membrane is used. The polymer composite membrane includes a porous base membrane and a heat-resistant fiber layer covering at least one side surface of the porous base membrane, where materials of the heat-resistant fiber layer contain a first polymeric material and a second polymeric material.