COMPOSITE ANODE ACTIVE MATERIAL, MANUFACTURING METHOD OF SAME, ANODE COMPRISING SAME, AND SECONDARY BATTERY

Title:

COMPOSITE ANODE ACTIVE MATERIAL, MANUFACTURING METHOD OF SAME, ANODE COMPRISING SAME, AND SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2021/020805

Kind Code:

A1

Abstract:

The present invention relates to a composite anode active material comprising: a silicon-based core particle; an outer carbon coating layer formed on the silicon-based core particle; and a single-walled carbon nanotube, wherein the single-walled carbon nanotube is in contact with the outer carbon coating layer while a portion of the body of the single-walled carbon nanotube is spaced apart from the outer carbon coating layer, and the outer carbon coating layer contains oxygen in an amount of 33-55 wt% in the outer carbon coating layer.

Inventors:

OH IL GEUN (KR)
LEE YONG JU (KR)
KIM JE YOUNG (KR)
YOO JUNG WOO (KR)
KIM YE LIN (KR)
KIM TAE GON (KR)

Application Number:

PCT/KR2020/009727

Publication Date:

February 04, 2021

Filing Date:

July 23, 2020

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

H01M4/36; H01M4/131; H01M4/133; H01M4/48; H01M4/587; H01M4/62; H01M10/052

Foreign References:

KR20130016727A	2013-02-18
KR20080076075A	2008-08-20
KR20170090449A	2017-08-07
KR20170044360A	2017-04-25
KR20190083613A	2019-07-12
KR20170074030A	2017-06-29

Other References: