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:
Oct. 17, 2023
Filed:
Oct. 06, 2021
Applicant:
SK on Co., Ltd., Seoul, KR;
Inventors:
Gwi Ok Park, Daejeon, KR;
Ju Ho Chung, Daejeon, KR;
Joon Sup Kim, Daejeon, KR;
Eun Jun Park, Daejeon, KR;
Dong Il Jang, Daejeon, KR;
Assignee:
SK ON CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/485 (2010.01); H01M 4/36 (2006.01); H01M 4/48 (2010.01); H01M 10/0525 (2010.01); H01M 4/587 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/483 (2013.01); H01M 4/587 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01); H01M 2220/20 (2013.01);
Abstract
According to embodiments of the present invention, there is provided an anode active material for a lithium secondary battery including a silicon oxide which includes a carbon coating layer on a surface thereof and is doped with magnesium. A ratio of peak area at 1303 eV to a sum of a peak area at 1304.5 eV and a peak area at 1303 eV, which appear in a Mg1s spectrum when measuring by X-ray photoelectron spectroscopy (XPS), is 60% or less.