COMPOSITE ANODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Title:

COMPOSITE ANODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2020/256440

Kind Code:

A1

Abstract:

The present invention relates to a composite anode and a secondary battery comprising same, the composite anode comprising: a silicon-containing structure; a first carbon material; a second carbon material; and a conductive material, wherein the first carbon material has a specific surface area (BET) value of 1.5 m 2/g or less, the rate of the change in specific surface area (m 2/g) to the increase in particle size (㎛) is -0.07 to -0.04 m 2/㎛·g, and the area occupied by pores in the cross section of the first carbon material is 10% or less.

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Inventors:

CHU HEE YOUNG (KR)
OH DOO RI (KR)
CHO YUN GU (KR)
SOH HYUN (KR)
CHOI YOON YOUNG (KR)
CHOI ICK KYU (KR)

Application Number:

PCT/KR2020/007915

Publication Date:

December 24, 2020

Filing Date:

June 18, 2020

Export Citation:

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Assignee:

SAMSUNG SDI CO LTD (KR)

International Classes:

H01M4/36; H01M4/38; H01M4/48; H01M4/587; H01M4/62; H01M10/052

Foreign References:

KR20130056668A	2013-05-30
KR20180031566A	2018-03-28
KR101491092B1	2015-02-09
KR20160147672A	2016-12-23
KR20140085822A	2014-07-08

Attorney, Agent or Firm:

Y.P.LEE, MOCK & PARTNERS (KR)

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