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.:
Date of Patent:
Apr. 21, 2026
Filed:
Oct. 25, 2023
Applicant:
Samsung Sdi Co., Ltd., Yongin-si, KR;
Inventors:
Sunil Park, Yongin-si, KR;
Changsu Shin, Yongin-si, KR;
Young-Min Kim, Yongin-si, KR;
Eunji Kang, Yongin-si, KR;
Doori Oh, Yongin-si, KR;
Jongmin Won, Yongin-si, KR;
Yookyung Kim, Yongin-si, KR;
Youngugk Kim, Yongin-si, KR;
Assignee:
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); C01B 32/158 (2017.01); C01B 32/159 (2017.01); H01M 4/02 (2006.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 4/587 (2010.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); C01B 32/158 (2017.08); C01B 32/159 (2017.08); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/386 (2013.01); H01M 4/587 (2013.01); H01M 10/052 (2013.01); C01B 2202/02 (2013.01); C01B 2202/06 (2013.01); C01B 2202/22 (2013.01); C01P 2006/40 (2013.01); H01M 2004/027 (2013.01);
Abstract
A negative active material and a rechargeable lithium battery including the negative active material, the negative active material includes a silicon-carbon composite including nano-silicon and amorphous carbon; an N-doped carbon layer on the silicon-carbon composite; and a coating layer on the N-doped carbon layer, the coating layer including carbon nanotubes.