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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 12355068 B1

PDFFull Text
Date of Patent:
Jul. 08, 2025

Filed:

Nov. 13, 2020

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

Applicant:

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

Inventors:

Jongmin Won, Yongin-si, KR;

Young-Min Kim, Yongin-si, KR;

Jaemyung Kim, Yongin-si, KR;

Jaehou Nah, Yongin-si, KR;

Changsu Shin, Yongin-si, KR;

Dae-Hyeok Lee, Yongin-si, KR;

Assignee:

SAMSUNG SDI CO., LTD., Yongin-si, KR;

Attorney:

Lee IP Law, P.C.

Primary Examiner:

Matthew T Martin

Assistant Examiner:

Bartholomew A Hornsby

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/02 (2006.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/386 (2013.01); H01M 4/625 (2013.01); H01M 4/628 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract

A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, the negative active material including secondary particles of agglomerated primary particles, the primary particles including Si particles and a first ceramic oxide on a surface of the Si particles; and amorphous carbon, wherein the amorphous carbon surrounds a surface of the primary particles and a surface of the secondary particles.

Find Patent Forward Citations

Won, Jongmin. (2025). Negative active material for rechargeable lithium battery, and rechargeable lithium battery including same (U.S. Patent No. 12355068). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12355068

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

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