SEPARATOR FOR SECONDARY BATTERY, AND ELECTROCHEMICAL DEVICE TO WHICH SAME IS APPLIED

Title:

SEPARATOR FOR SECONDARY BATTERY, AND ELECTROCHEMICAL DEVICE TO WHICH SAME IS APPLIED

Document Type and Number:

WIPO Patent Application WO/2019/135532

Kind Code:

A1

Abstract:

The present invention relates to: a separator for a secondary battery, capable of reducing the use amount of dispersible resin and the use amount of dispersant in order to prevent an increase in resistance, after coating a separator, occurring when a large amount of dispersible resin is used for dispersing an inorganic material; and an electrochemical device to which the same is applied, and can prevent an increase in resistance, occurring after coating a porous separator, by reducing the amount of dispersible resin, improve physical properties and dispersibility by mixing a dispersible resin having a specific weight average molecular weight, and reduce processing costs by preventing the use of an expensive dispersant.

Inventors:

HAN DA KYUNG (KR)
LEE SEUNG HYUN (KR)
SUNG DONG WOOK (KR)
LEE JE AN (KR)

Application Number:

PCT/KR2018/016557

Publication Date:

July 11, 2019

Filing Date:

December 24, 2018

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

H01M10/052; H01M50/403; H01M50/443; H01M50/457; H01M50/491; H01M50/489

Foreign References:

KR20150045407A	2015-04-28
JP2012227135A	2012-11-15
KR101330675B1	2013-11-18
KR20140147742A	2014-12-30
KR20140026009A	2014-03-05
KR20180002493A	2018-01-08
KR20090118089A	2009-11-17
KR20170024574A	2017-03-07
KR20170053010A	2017-05-15
KR101750325B1	2017-06-23

Other References: