公开(公告)号：US20180040867A1

公开(公告)日：2018-02-08

申请号：US15555454

申请日：2016-03-04

Applicant: NEC CORPORATION

Inventor： Kenichi SHIMURA ,  Noboru YOSHIDA ,  Kazuhiko INOUE

IPC: H01M2/16 ,  H01M10/052 ,  H01M4/04 ,  H01M10/04 ,  H01M4/62

Abstract: The separator for secondary battery, comprising: a porous substrate having a melting temperature or a decomposition temperature of 200° C. or more; and a resin member formed at least inside of the substrate in a plane section that occupies at least a part of a plane along with a thickness direction of the substrate; wherein said resin member is coated on inner surfaces of pores without completely blocking connecting paths that connects pores of the porous member, and wherein a distribution density of the resin member becomes lower toward inside of the substrate.

公开(公告)号：US20170141440A1

公开(公告)日：2017-05-18

申请号：US15319341

申请日：2015-06-16

Applicant: NEC Corporation

Inventor： Ikiko SHIMANUKI ,  Hitoshi ISHIKAWA ,  Noboru YOSHIDA

IPC: H01M10/42 ,  H01M10/0568 ,  H01M10/0567 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/587

CPC classification number: H01M10/4235 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0037 ,  Y02T10/7011

Abstract: The present invention relates to an electrolytic solution comprising a cyclic disulfonic acid ester represented by the specific formula and a cyclic dicarboxylic acid ester represented by the specific formula, and the secondary battery using the same. According to the present invention, the electrolytic solution which can improve a cycle characteristics in a secondary battery and a secondary battery using the same can be provided.