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:
Feb. 16, 2010
Filed:
Feb. 23, 2001
Applicants:
Wan-uk Choi, Chonan, KR;
Jae-yul Ryu, Suwon-si, KR;
Sang-young Yoon, Seoul, KR;
Inventors:
Assignee:
Samsung SDI Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/58 (2006.01); C01B 31/02 (2006.01); C01B 31/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A negative electrode active material for a lithium-based secondary battery includes a graphite-like carbon material having an intensity ratio I()/I() of an X-ray diffraction peak intensity I() at a () plane to an X-ray diffraction peak intensity I() at a () plane of less than 0.2.