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:
Oct. 08, 2013
Filed:
Dec. 04, 2008
Keith D. Kepler, Belmont, CA (US);
Hongjian Liu, Hercules, CA (US);
Keith D. Kepler, Belmont, CA (US);
Hongjian Liu, Hercules, CA (US);
Farasis Energy, Inc., Hayward, CA (US);
Abstract
Disclosed herein is a composite material for use as an anode for Li-ion batteries and its preparation method and use. The composite material comprises the components represented by the following formula: M-X—Se—Z—C, in which, M represents one or more selected from Sn, Al, Pb, Sb, Si and Bi; X represents one or more selected from Cu, V, Co, Ti, Mo, Mg, W and Zn; Z represents Si and/or Ge; and a, a, d, dand c represent the weight ratio of M, X, Se, Z and C to the total amount of M, X, Se, Z and C, respectively, wherein a+ais equal to 0.4-0.7, d+dis equal to 0.05-0.6, c is equal to 0.01-0.25, d/dranges from 0 to 1/1.4, and a/aranges from 0 to 1/1.5.