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:
Dec. 30, 2025
Filed:
Aug. 29, 2023
SK on Co., Ltd., Seoul, KR;
SK Innovation Co., Ltd., Seoul, KR;
Joon Hyung Moon, Daejeon, KR;
Eun Jun Park, Daejeon, KR;
Jung Hyun Yun, Daejeon, KR;
Ju Ho Chung, Daejeon, KR;
SK ON CO., LTD., Seoul, KR;
SK INNOVATION CO., LTD., Seoul, KR;
Abstract
An anode active material for a lithium secondary battery and a lithium secondary battery including the same are provided. The anode active material includes a plurality of composite particles, each composite particle including a silicon-based active material particle including silicon; and a carbon coating layer formed on at least a portion of a surface of the silicon-based active material particle, wherein a relative standard deviation of G/Si peak intensity ratios of a Raman spectrum as defined in Equation 1 measured for each of 50 different composite particles among the plurality of composite particles is 50% or less.