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:
Jul. 09, 2024
Filed:
Nov. 26, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Jung Hyun Choi, Daejeon, KR;
Yong Ju Lee, Daejeon, KR;
Eun Kyung Kim, Daejeon, KR;
Rae Hwan Jo, Daejeon, KR;
Dong Hyuk Kim, Daejeon, KR;
Il Geun Oh, Daejeon, KR;
Assignee:
LG ENERGY SOLUTION, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/587 (2010.01); H01M 4/36 (2006.01); H01M 4/485 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/587 (2013.01); H01M 4/366 (2013.01); H01M 4/485 (2013.01); H01M 4/623 (2013.01); H01M 10/0525 (2013.01);
Abstract
A negative electrode active material including silicon-based active material particles each including a core including SiO, wherein 0≤x≤2, and a coating layer present on the core. Also, a negative electrode active material in which the coating layer is any one of a carbon coating layer or a polymer coating layer, and the coating layer includes a fluorinated material including at least one of an alkali metal or an alkaline earth metal.