SEPARATOR AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Title:

SEPARATOR AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2020/022851

Kind Code:

A1

Abstract:

Disclosed are a separator and an electrochemical device comprising same. In particular, the separator comprises: a separator substrate provided with a porous polymer substrate and a porous coating layer, wherein the porous polymer substrate has a plurality of pores, and the porous coating layer is disposed on at least one side of the porous polymer substrate, and comprises a plurality of inorganic particles and a binder polymer disposed on a portion of, or the entire surface of the inorganic particles, thereby connecting and fixing between the inorganic particles; and a porous adhesive layer disposed on at least one side of the separator substrate and comprising a polyvinylidene-hexafluoropropylene copolymer containing vinylidene-derived repeating units and hexafluoropropylene-derived repeating units, wherein a proportion of the number of the hexafluoropropylene-derived repeating units, with respect to the total number of the vinylidene-derived repeating units and hexafluoropropylene-derived repeating units, is 4.5 to 9%.

Inventors:

KIM CHAN-JONG (KR)
YOON SU-JIN (KR)

Application Number:

PCT/KR2019/009365

Publication Date:

January 30, 2020

Filing Date:

July 26, 2019

Export Citation:

Click for automatic bibliography generation Help

Assignee:

LG CHEMICAL LTD (KR)

International Classes:

C09J127/20; H01G11/52; H01M10/052; H01M50/403; H01M50/417; H01M50/426; H01M50/443; H01M50/451; H01M50/457; H01M50/489; H01M50/491

Foreign References:

KR20180018408A	2018-02-21
KR20140050877A	2014-04-30
KR20160129762A	2016-11-09
KR20150050060A	2015-05-08
JP5643465B2	2014-12-17
KR20180087423A	2018-08-01

Other References: