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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12763324 B1

PDFFull Text
Date of Patent:
Oct. 13, 2026

Filed:

Oct. 30, 2023

Negative active material for rechargeable lithium battery and rechargeable lithium battery including same

Applicant:

Samsung Sdi Co., Ltd., Yongin-si, KR;

Inventors:

Hyejin Kim, Yongin-si, KR;

Yongseok Kim, Yongin-si, KR;

Sojeong Yu, Yongin-si, KR;

Kyeu Yoon Sheem, Yongin-si, KR;

Jungjoon Kim, Yongin-si, KR;

Jaewon Kim, Yongin-si, KR;

Jaehou Nah, Yongin-si, KR;

Eunjoo Lee, Yongin-si, KR;

Assignee:

Samsung SDI Co., Ltd., Yongin-si, KR;

Attorney:

Lee IP Law, PC

Primary Examiner:

Jimmy Vo

Int. Cl.
CPC ...
H01M 4/38 (2006.01); H01M 4/46 (2006.01); H01M 4/485 (2010.01); H01M 4/583 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/386 (2013.01); H01M 4/466 (2013.01); H01M 4/485 (2013.01); H01M 4/583 (2013.01); H01M 2004/027 (2013.01); H01M 2220/30 (2013.01);
Abstract

A negative active material for a rechargeable lithium battery, having a core including porous silicon and about 1 wt % to about 12 wt % based on 100 wt % of a total weight of the negative active material of magnesium and a carbon layer on a surface of the core, to more effectively inhibit the expansion of the negative electrode and thereby more effectively inhibit the expansion of the secondary battery.

Find Patent Forward Citations

Kim, Hyejin. (2026). Negative active material for rechargeable lithium battery and rechargeable lithium battery including same (U.S. Patent No. 12763324). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12763324

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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