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:
Apr. 21, 2015
Filed:
Apr. 24, 2014
Applicant:
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Inventors:
Sang-Min Lee, Yongin-si, KR;
Goo-Jin Jeong, Yongin-si, KR;
Sung-Soo Kim, Yongin-si, KR;
Yoshiaki Nitta, Yongin-si, KR;
Assignee:
Samsung SDI Co., Ltd., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/485 (2010.01); H01M 4/587 (2010.01); C01B 35/12 (2006.01); H01M 4/139 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/0402 (2013.01); H01M 4/13 (2013.01); H01M 4/139 (2013.01); H01M 4/362 (2013.01); H01M 4/485 (2013.01); H01M 4/587 (2013.01); H01M 10/0525 (2013.01); Y02E 60/122 (2013.01); C01B 35/12 (2013.01);
Abstract
The present invention relates to a negative active material for a rechargeable lithium battery, which includes a silicon-based composite having a silicon oxide of the form SiOwhere x≦1.5 and at least one element selected from the group consisting of B, P, Li, Ge, Al, and V, and a carbonaceous material. The negative active material of the present invention can improve the cycle-life and high-rate charge/discharge characteristics of a rechargeable lithium battery.