LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME

Title:

LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2013/100653

Kind Code:

A1

Abstract:

The present invention relates to a lithium secondary battery and a method for producing same. More particularly, the present invention provides a lithium secondary battery comprising: an electrode assembly having an anode, a cathode, and a separator interposed between the anode and the cathode; and a non-aqueous electrolyte impregnated in the electrode assembly. The separator further includes a layer which has at least one face contacting the anode and the cathode, the at least one face having a plurality of fractured capsules. Each capsule is coated with a binder copolymer in which inorganic particles are dispersed. The lithium secondary battery of the present invention eliminates the need for a separate non-aqueous electrolyte injection process, and improves both the mechanical physical properties of the separator thereof and the stability of the battery.

Inventors:

LEE CHUL-HAENG (KR)
YANG DOO KYUNG (KR)

Application Number:

PCT/KR2012/011622

Publication Date:

July 04, 2013

Filing Date:

December 27, 2012

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

H01M10/052; H01M4/04; H01M50/403; H01M50/417; H01M50/42; H01M50/431; H01M50/434; H01M50/443; H01M50/451; H01M50/457; H01M50/682

Foreign References:

JP2001185219A	2001-07-06
KR20100120952A	2010-11-17
KR20020025302A	2002-04-04
KR20110016416A	2011-02-17
JP2003272707A	2003-09-26

Other References: