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:
Jul. 29, 2014
Filed:
Jul. 13, 2010
Young-jun Lee, Yongin-si, KR;
Goo-jin Jeong, Yongin-si, KR;
Young-hwan Kim, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, Gyeonggi-Do, KR;
Abstract
Disclosed are a negative active material for a rechargeable lithium battery that includes a core including silicon oxide represented by the following Chemical Formula 1; and a surface-treatment layer surrounding the core and including metal oxide represented by the following Chemical Formula 2, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The metal of the metal oxide is included in an amount of about 0.1 wt % to about 20 wt % based on the total weight of the negative active material for a rechargeable lithium battery.SiOx  [Chemical Formula 1]MyOz  [Chemical Formula 2] In the above Chemical Formula 1 and 2, M, x, y, and z are the same as defined in the specification.