HIGH HEAT RESISTANCE COMPOSITE SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Title:

HIGH HEAT RESISTANCE COMPOSITE SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Document Type and Number:

WIPO Patent Application WO/2013/089313

Kind Code:

A1

Abstract:

The present invention relates to a high heat resistance composite separator for a lithium secondary battery and a lithium secondary battery including same. The high heat resistance composite separator includes: a porous base material having a plurality of pores; an inorganic coating layer applied on one surface of the porous base material and including a plurality of inorganic particles and a binder polymer that is disposed on a portion or the entire surface of each of the inorganic particles to connect and fix the inorganic particles to each other; and a high heat resistant polymer coating layer formed on the other surface of the porous base material and including inorganic particles dispersed into the high heat resistance polymer.

Inventors:

HONG JI-JUN (KR)
KO SUNG-TAE (KR)
HEO YOON-JEONG (KR)
KWON YOO-JUNG (KR)

Application Number:

PCT/KR2012/001052

Publication Date:

June 20, 2013

Filing Date:

February 13, 2012

Export Citation:

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Assignee:

KOKAM CO LTD (KR)
HONG JI-JUN (KR)
KO SUNG-TAE (KR)
HEO YOON-JEONG (KR)
KWON YOO-JUNG (KR)

International Classes:

H01M10/052; H01M50/414; H01M50/429; H01M50/434; H01M50/451; H01M50/457; H01M50/489; H01M50/491

Foreign References:

JP2010146839A	2010-07-01
JP2007324073A	2007-12-13
KR101029672B1	2011-04-15
KR20110011932A	2011-02-09
KR20100129471A	2010-12-09
EP0307163W	2003-07-04
JP2007122026A	2007-05-17

Other References: