SEPARATOR FOR LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Title:

SEPARATOR FOR LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Document Type and Number:

WIPO Patent Application WO/2019/216548

Kind Code:

A1

Abstract:

Disclosed are a separator for a lithium secondary battery, a method for manufacturing a separator for a lithium secondary battery, and a lithium secondary battery including same, the separator comprising: a porous substrate; a heat resistant layer positioned on at least one surface of the porous substrate and including inorganic particles; and a first adhesive layer positioned on the heat resistant layer and including a first organic polymer, wherein the heat resistant layer includes the inorganic particles of 90 wt% to 99 wt% on the basis of total weight, the thickness of the heat resistant layer is 3.5 μm to 7 μm, and the thickness of the first adhesive layer is 0.5 μm to 3.0 μm.

Inventors:

JANG JUNGSUE (KR)
LEE BYUNGMIN (KR)
KIM HANA (KR)
PARK MYUNGKOOK (KR)
YANG SEUNG RIM (KR)
JUNG BOKYUNG (KR)
CHO MINHO (KR)

Application Number:

PCT/KR2019/003544

Publication Date:

November 14, 2019

Filing Date:

March 27, 2019

Export Citation:

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Assignee:

SAMSUNG SDI CO LTD (KR)
SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

H01M10/052; H01M50/443

Foreign References:

KR20160109669A	2016-09-21
KR20160041492A	2016-04-18
KR20170019522A	2017-02-22
KR20160118966A	2016-10-12
US20150162588A1	2015-06-11

Other References: