公开(公告)号：US09614249B2

公开(公告)日：2017-04-04

申请号：US14516903

申请日：2014-10-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Isao Fujiwara ,  Nobuhiro Hirano ,  Masaru Watanabe

IPC: H01M2/16 ,  H01M10/05 ,  H01M10/052

CPC classification number: H01M10/05 ,  H01M2/162 ,  H01M2/1626 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/052

Abstract: A separator according to the present disclosure is a separator for a non-aqueous electrolyte secondary battery that includes a porous layer that contains cellulose fibers and resin particles. The ratio of the amount of the resin particles to the total amount of the cellulose fibers and the resin particles increases with decreasing distance from one surface of the porous layer.