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:
Jan. 12, 2021
Filed:
Aug. 23, 2017
Applicant:
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Inventor:
Youngjin Choi, Yongin-si, KR;
Assignee:
Samsung SDI Co., Ltd., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/60 (2006.01); H01M 4/13 (2010.01); H01M 4/1391 (2010.01); H01M 4/1397 (2010.01); H01M 4/1393 (2010.01); H01M 10/052 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/602 (2013.01); H01M 4/1391 (2013.01); H01M 4/1393 (2013.01); H01M 4/1397 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01);
Abstract
A composite anode active material includes a first core and a coating layer on the first core, in which the coating layer includes an ion-conductive polymer and the amount of the ion-conductive polymer is from about 0.0001 wt % to about 0.04 wt % based on a total weight of the composite anode active material. A lithium battery including the composite anode active material may have improved thickness expansion rate, and enhanced initial efficiency and lifespan characteristics.