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:
May. 03, 2022
Filed:
May. 10, 2018
Lg Chem, Ltd., Seoul, KR;
Jung Hyun Choi, Daejeon, KR;
Yong Ju Lee, Daejeon, KR;
Dong Hyuk Kim, Daejeon, KR;
Eun Kyung Kim, Daejeon, KR;
Rae Hwan Jo, Daejeon, KR;
Il Geun Oh, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
A negative electrode active material which includes a secondary particle including first primary particles, wherein the first primary particle includes a core including SiO, wherein 0≤x<2, an intermediate layer which covers at least a portion of a surface of the core and includes silicon nitride, silicon oxynitride, or a mixture thereof, and a carbon coating layer which covers at least a portion of the intermediate layer and includes nitrogen-doped carbon, and a negative electrode and a lithium secondary battery which include the same.