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. 13, 2012
Filed:
May. 06, 2010
Cheol-hee Hwang, Suwon-si, KR;
Bong-chull Kim, Suwon-si, KR;
Se-ho Park, Suwon-si, KR;
Dong-yung Kim, Suwon-si, KR;
Cheol-Hee Hwang, Suwon-si, KR;
Bong-Chull Kim, Suwon-si, KR;
Se-Ho Park, Suwon-si, KR;
Dong-Yung Kim, Suwon-si, KR;
Samsung SDI Co., Ltd., , KR;
Abstract
A negative active material for a rechargeable lithium battery includes: a crystalline carbon core including pores; an amorphous carbon shell positioned on the core surface; metal nanoparticles dispersed inside the pores; and amorphous carbon inside the pores, wherein a first particle diameter difference (D50−D10) of the nanoparticles is from about 70 to about 150 nm and the second particle diameter difference (D90−D50) of the nanoparticles is from about 440 to about 520 nm.