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:
Nov. 01, 2022
Filed:
Dec. 31, 2020
The Industry & Academic Cooperation IN Chungnam National University (Iac), Daejeon, KR;
Chunjoong Kim, Daejeon, KR;
Sung-Man Lee, Gyeonggi-do, KR;
Abstract
An anode active material contains a carbon composite, and the carbon composite may include a core particle including hard carbon and a skin layer placed on a surface of the core particle. The skin layer includes graphite particles attached to the surface of the core particle at a predetermined angle with respect to the surface and the graphite particles include graphite-based carbon material. The skin layer further includes an amorphous carbon layer filling a space between the graphite particles and attaching the graphite particles to the surface of the core particle. The carbon composite has a ratio of Ito Iin a range of 0.8 to 1.5 (0.8≤I/I≤1.5) in Raman analysis where Iis the intensity of D peak at 1300 cmto 1400 cmand Iis the intensity of G peak at 1500 cmto 1600 cm.