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:
Mar. 24, 2026
Filed:
Jul. 10, 2020
Applicant:
Samsung Sdi Co., Ltd., Yongin-si, KR;
Inventors:
Yungu Cho, Yongin-si, KR;
Doori Oh, Yongin-si, KR;
Heeyoung Chu, Yongin-si, KR;
Hyun Soh, Yongin-si, KR;
Yoonyoung Choi, Yongin-si, KR;
Yubin Hwang, Yongin-si, KR;
Assignee:
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/38 (2006.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/36 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/386 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01); H01M 2220/20 (2013.01);
Abstract
A composite anode active material, an anode, and a lithium secondary battery, the composite anode active material including a silicon-carbon composite; a first graphite; and a second graphite that is different from the first graphite, wherein the first graphite has an average particle diameter Dof about 10 μm or greater, and the second graphite has an average particle diameter Dof about 18 μm or greater.