NEGATIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY USING SAME

Title:

NEGATIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY USING SAME

Document Type and Number:

WIPO Patent Application WO/2012/091301

Kind Code:

A3

Abstract:

The present invention relates to a negative electrode active material for secondary batteries, capable of absorbing and desorbing ions, and to a secondary battery including the negative electrode active material, the active material consisting of: a core of a crystalline carbonaceous substance; and a composite coating layer that includes at least one substance selected from the group consisting of low crystalline carbon and amorphous carbon, and a metal and/or non-metal capable of absorbing and desorbing ions. Here, the composite coating layer is configured such that a matrix is made of one component selected from said at least one substance selected from the group consisting of low crystalline carbon and amorphous carbon, and the metal and/or non-metal capable of absorbing and desorbing ions, wherein a filler made of the other component is further included in the matrix.

Inventors:

CHANG SUNG-KYUN (KR)
JANG WONSEOK (KR)
KIM JE YOUNG (KR)
HAN JUNGMIN (KR)

Application Number:

PCT/KR2011/009172

Publication Date:

September 07, 2012

Filing Date:

November 29, 2011

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)
CHANG SUNG-KYUN (KR)
JANG WONSEOK (KR)
KIM JE YOUNG (KR)
HAN JUNGMIN (KR)

International Classes:

H01M4/583; H01M4/38; H01M10/0525

Foreign References:

KR20100062083A	2010-06-10
KR20060047424A	2006-05-18
KR20040082803A	2004-09-30
KR20090094575A	2009-09-08
KR20050087245A	2005-08-31

Other References: