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:
Aug. 09, 2022
Filed:
Apr. 20, 2015
Applicant:
Samsung Sdi Co., Ltd., Yongin-si, KR;
Inventors:
Jung-Yeon Won, Yongin-si, KR;
Kyeu-Yoon Sheem, Yongin-si, KR;
Dae-Seop Lim, Yongin-si, KR;
Sung-Hwa Eo, Yongin-si, KR;
Jung-Wook Cha, Yongin-si, KR;
Assignee:
Samsung SDI Co., Ltd., Yongin-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/583 (2010.01); H01M 10/052 (2010.01); H01M 4/04 (2006.01); H01M 4/587 (2010.01); C01B 32/05 (2017.01); H01M 4/02 (2006.01); H01M 4/133 (2010.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); C01B 32/05 (2017.08); H01M 4/0471 (2013.01); H01M 4/583 (2013.01); H01M 4/587 (2013.01); H01M 10/052 (2013.01); C01P 2002/82 (2013.01); H01M 4/133 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract
A negative active material for a rechargeable lithium battery includes a composite carbon particle including a core particle including crystalline-based carbon and a coating layer positioned on the surface of the core particle and including amorphous carbon. A peak intensity (I) at 1620 cmranges from about 0.01 to about 0.1, a peak intensity (I) at 1360 cmranges from about 0.05 to about 0.5, and a peak intensity (Iat 1580 cmranges from about 0.1 to about 0.8 in a Raman spectrum of the composite carbon particle.