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:
Sep. 01, 2015
Filed:
Jan. 15, 2013
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Seung-Uk Kwon, Yongin-si, KR;
Sung-Hwan Moon, Yongin-si, KR;
Chun-Gyoo Lee, Yongin-si, KR;
Jae-Hyuk Kim, Yongin-si, KR;
Soon-Sung Suh, Yongin-si, KR;
Chang-Ui Jeong, Yongin-si, KR;
Yo-Han Park, Yongin-si, KR;
Yury Matulevich, Yongin-si, KR;
Jong-Seo Choi, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A negative active material having controlled particle size distribution of silicon nanoparticles in a silicon-based alloy, a lithium battery including the negative active material, and a method of manufacturing the negative active material are disclosed. The negative active material may improve capacity and lifespan characteristics by inhibiting (or reducing) volumetric expansion of the silicon-based alloy. The negative active material may include a silicon-based alloy including: a silicon alloy-based matrix; and silicon nanoparticles distributed in the silicon alloy-based matrix, wherein a particle size distribution of the silicon nanoparticles satisfies D10≧10 nm and D90≦75 nm.