METHOD FOR MANUFACTURING NEGATIVE ACTIVE MATERIAL FOR SECONDARY BATTERY

Title:

METHOD FOR MANUFACTURING NEGATIVE ACTIVE MATERIAL FOR SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2015/083869

Kind Code:

A1

Abstract:

The present invention relates to a method for manufacturing a negative active material, comprising: a step for preparing a lithium titanium oxide; a step for mixing the lithium titanium oxide and Mo; and a step for heat-treating the lithium titanium oxide mixed with the Mo in a reducing atmosphere. The heat-treating of the lithium titanium oxide mixed with the Mo in a reducing atmosphere improves the properties of Ti3+,which is easily oxidized at normal temperature in air, enhances electronic conductivity, and stabilizes the oxidation state in air, thereby providing a negative active material for a secondary battery which can obtain an excellent performance of a secondary battery.

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WO/2006/109930	CATHODE ACTIVE MATERIAL COATED WITH FLUORINE COMPOUND FOR LITHIUM SECONDARY BATTERIES AND METHOD FOR PREPARING THE SAME
WO/2005/099025	REDOX SHUTTLE FOR OVERDISCHARGE PROTECTION IN RECHARGEABLE LITHIUM-ION BATTERIES
WO/2013/154623	NOVEL SEPARATORS FOR ELECTROCHEMICAL SYSTEMS

Inventors:

KIM YONG TAE (KR)
SONG HAN NAH (KR)

Application Number:

PCT/KR2013/011709

Publication Date:

June 11, 2015

Filing Date:

December 17, 2013

Export Citation:

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Assignee:

PUSAN NAT UNIV IND COOP FOUND (KR)

International Classes:

H01M4/485; H01M4/13

Foreign References:

KR100759401B1	2007-09-19
KR20130052500A	2013-05-22
KR20120017991A	2012-02-29
KR20130019493A	2013-02-27
KR20100003480A	2010-01-11

Attorney, Agent or Firm:

KASAN IP & LAW FIRM (KR)
특허법인 가산 (KR)

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