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:
Jun. 17, 2014
Filed:
Oct. 09, 2009
Applicants:
Sung Man Lee, Chuncheon-si, KR;
Byoung-hoon Ahn, Sokcho-si, KR;
Inventors:
Sung Man Lee, Chuncheon-si, KR;
Byoung-Hoon Ahn, Sokcho-si, KR;
Assignee:
Knu-Industry Cooperation Foundation, Chunchon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/13 (2010.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a negative active material for a rechargeable lithium battery is provided that includes composite particles including an amorphous or semi-crystalline carbon matrix, and crystalline graphite powder particles having an average particle diameter of 0.2 to 3 μm dispersed in the matrix. The composite particles have an average particle diameter of 4 to 40 μm. A method of preparing the same and a rechargeable lithium battery including the negative active material are also disclosed.