NEGATIVE ACTIVE MATERIAL, METHOD FOR MANUFACTURING SAME, AND NEGATIVE ELECTRODE AND SECONDARY BATTERY COMPRISING SAME

Title:

NEGATIVE ACTIVE MATERIAL, METHOD FOR MANUFACTURING SAME, AND NEGATIVE ELECTRODE AND SECONDARY BATTERY COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2023/054940

Kind Code:

A1

Abstract:

The present invention relates to a negative active material which comprises secondary particles, in which two or more primary particles are aggregated, wherein the primary particles include natural graphite particles and an amorphous carbon coating layer positioned on at least a part of the natural graphite particles, and has a pore volume, measured by a mercury porosimeter measurement method, of 0.06 mL/g to 0.15 mL/g.

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Inventors:

KIM HYUN CHUL (KR)
WOO SANG WOOK (KR)

Application Number:

PCT/KR2022/013728

Publication Date:

April 06, 2023

Filing Date:

September 14, 2022

Export Citation:

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Assignee:

LG ENERGY SOLUTION LTD (KR)

International Classes:

H01M4/36; C01B32/21; H01M4/02; H01M4/133; H01M4/587; H01M4/62; H01M10/0525

Foreign References:

KR20170030580A	2017-03-17
KR20200028637A	2020-03-17
KR20210115461A	2021-09-27
KR20150046077A	2015-04-29
KR20200090128A	2020-07-28
JP4403327B2	2010-01-27

Attorney, Agent or Firm:

BAE, KIM & LEE IP (KR)

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