SEPARATOR FOR SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Title:

SEPARATOR FOR SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2019/143155

Kind Code:

A1

Abstract:

The present invention relates to a separator for a secondary battery, and a lithium secondary battery comprising same, the separator comprising a base and a coating layer formed on the surface of the base, the coating layer comprising an organic binder and inorganic particles, the organic binder comprising an ethylenically unsaturated group.

Inventors:

SHIN WON KYUNG (KR)
AHN KYOUNG HO (KR)
LEE CHUL HAENG (KR)
LEE JAE WON (KR)

Application Number:

PCT/KR2019/000722

Publication Date:

July 25, 2019

Filing Date:

January 17, 2019

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

H01M10/052; H01M10/0565; H01M50/449; H01M50/451; H01M50/417; H01M50/426; H01M50/454

Foreign References:

KR20160040128A	2016-04-12
KR20150099648A	2015-09-01
KR20170140253A	2017-12-20
KR20150131513A	2015-11-25

Other References:

YOO, J.-H.: "Lithium-ion polymer cells assembled with a reactive composite separator containing vinyl-functionalized Si02 particles", JOURNAL OF POWER SOURCES, 11 July 2015 (2015-07-11), pages 149 - 155, XP029250490, DOI: 10.1016/j.jpowsour.2015.06.156
SHIN, W. -K.: "Hybrid Composite Membranes Based on Polyethylene Separator and A1203 Nanoparticles for Lithium-Ion Batteries", JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, vol. 13, no. 5, 2013, pages 3705 - 3710, XP009520885, DOI: 10.1166/jnn.2013.7254
CHEMICAL ABSTRACTS, Columbus, Ohio, US; abstract no. 2589-57-3
See also references of EP 3703158A4

Attorney, Agent or Firm:

BAE, KIM & LEE IP GROUP (KR)

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