Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SEPARATOR, LITHIUM SECONDARY BATTERY INCLUDING SEPARATOR, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/151812
Kind Code:
A1
Abstract:
The present invention relates to a separator, a lithium secondary battery including same, and a manufacturing method therefor, the lithium secondary battery comprising a cathode, an anode, and a separator interposed between the cathode and the anode, wherein: the separator comprises a non-cross-linked polyolefin layer and a cross-linked polyolefin layer, which is positioned on one surface of the non-cross-linked polyolefin layer and includes at least one cross-linked bond represented by chemical formula 1; and the cathode faces the non-cross-linked polyolefin layer of the separator. The lithium secondary battery according to the present invention has a high meltdown temperature and has a high oxidation stability in a high voltage/high temperature environment.

Inventors:
LEE JOO-SUNG (KR)
Application Number:
PCT/KR2019/001400
Publication Date:
August 08, 2019
Filing Date:
January 31, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/052; H01M10/42; H01M10/44; H01M50/403; H01M50/417; H01M50/457; H01M50/489
Foreign References:
US20150056492A12015-02-26
KR101747865B12017-06-16
US20140106236A12014-04-17
KR20170053010A2017-05-15
US20140272663A12014-09-18
KR20180012301A2018-02-05
Other References:
See also references of EP 3605656A4
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
Download PDF: