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. 03, 2015
Filed:
Mar. 14, 2013
Samsung Sdi Co., Ltd., Yongin, Gyeonggi-Do, KR;
Beom-Kwon Kim, Yongin, KR;
Jae-Myung Kim, Yongin, KR;
So-Ra Lee, Yongin, KR;
Ui-Song Do, Yongin, KR;
Chang-Su Shin, Yongin, KR;
Samsung SDI Co., Ltd., Gyeonggi-Do, KR;
Abstract
In an aspect, a negative active material, a method of preparing the negative active material, and a lithium battery including the negative active material are provided. The method of preparing the negative active material may increase pulverizing efficiency in pulverizing a silicon-based bulky particle into a nano-size silicon-based primary particle and decrease a capacity loss of the obtained negative active material. The nano-size negative active material has excellent crystalline characteristics, high capacity, and high initial efficiency, due to a decrease in surface oxidation and surface damage.