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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 (150-20 Gongse-ro, Giheung-gu,Yongin-si, Gyeonggi-do, 17084, KR)
LEE, Byungmin (150-20 Gongse-ro, Giheung-gu,Yongin-si, Gyeonggi-do, 17084, KR)
KIM, Hana (150-20 Gongse-ro, Giheung-gu,Yongin-si, Gyeonggi-do, 17084, KR)
PARK, Myungkook (150-20 Gongse-ro, Giheung-gu,Yongin-si, Gyeonggi-do, 17084, KR)
YANG, Seung Rim (#1003-204, Yanghyun-ro 220, Bundang-gu,,Seongnam-si, Gyeonggi-do, 13566, KR)
JUNG, Bokyung (#105-102, 363 Hyowon-ro, Yeongtong-gu,,Suwon-si, Gyeonggi-do, 16543, KR)
CHO, Minho (150-20 Gongse-ro, Giheung-gu,Yongin-si, Gyeonggi-do, 17084, KR)
Application Number:
KR2019/003544
Publication Date:
November 14, 2019
Filing Date:
March 27, 2019
Export Citation:
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Assignee:
SAMSUNG SDI CO., LTD. (150-20 Gongse-ro, Giheung-gu,Yongin-si, Gyeonggi-do, 17084, KR)
SAMSUNG ELECTRONICS CO., LTD. (129 Samsung-ro, Yeongtong-gu,Suwon-si, Gyeonggi-do, 16677, KR)
International Classes:
H01M2/16; H01M2/14; H01M10/052
Foreign References:
KR20160109669A2016-09-21
KR20160041492A2016-04-18
KR20170019522A2017-02-22
KR20160118966A2016-10-12
US20150162588A12015-06-11
Attorney, Agent or Firm:
PANKOREA PATENT AND LAW FIRM (13F, 70 Nonhyeon-ro 85-gil,Gangnam-gu, Seoul, 06234, KR)
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