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:
Apr. 21, 2026
Filed:
Nov. 26, 2021
SK Innovation Co., Ltd., Seoul, KR;
Unist (Ulsan National Institute of Science and Technology), Ulsan, KR;
Gwi Ok Park, Daejeon, KR;
Joon Sup Kim, Daejeon, KR;
Eun Jun Park, Daejeon, KR;
Jee Hee Lee, Daejeon, KR;
Jae Phil Cho, Ulsan, KR;
SK On Co., Ltd., Seoul, KR;
UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY), Ulsan, KR;
Abstract
Provided are an anode active material for a lithium secondary battery and a method of preparing the same, wherein the anode active material for a lithium secondary battery includes a silicon-carbon composite including a porous carbon material and a silicon coating layer positioned on the porous carbon material; a metal compound layer positioned on the silicon-carbon composite and including a metal compound that is metal oxide, metal nitride, or a mixture thereof; and a carbon coating layer surrounding the silicon-carbon composite and the metal compound layer positioned on the silicon-carbon composite.