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. 07, 2025
Filed:
Aug. 13, 2019
Posco, Pohang-si, KR;
Research Institute of Industrial Science & Technology, Pohang-si, KR;
Yong Jung Kim, Pohang-si, KR;
Seung Jae You, Pohang-si, KR;
Eun-Tae Kang, Pohang-si, KR;
Jung Gyu Woo, Pohang-si, KR;
POSCO HOLDINGS INC., Seoul, KR;
Abstract
An embodiment of the present invention provides an anode active material for a lithium secondary battery, which is a porous silicon-carbon composite including a plurality of nano-silicon particles embedded in a carbon-based material and having a plurality of pores, wherein the carbon-based material includes graphite particles, soft carbon, hard carbon, or a combination thereof, and based on 100 wt % of the porous silicon-carbon composite, a weight ratio of the graphite particles to the soft carbon, the hard carbon, or a combination thereof is 1:5 to 5:1.