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:
Aug. 20, 2002
Filed:
May. 24, 2000
Sohrab Hossain, Tucson, AZ (US);
LiTech, L.L.C., Tucson, AZ (US);
Abstract
The present invention provides a secondary electrochemical cell comprising a body of aprotic, non-aqueous electrolyte, first and second electrodes in effective electrochemical contact with the electrolyte, the first electrode comprising active materials such as a lithiated intercalation compound serving as the positive electrode or cathode and the second electrode comprising a carbon-carbon composite material and serving as the negative electrode or anode; whereby they provide a secondary non-aqueous electrochemical cell having improved cycle life and shelf-life characteristics as compared with similar secondary non-aqueous electrochemical cells having carbon anodes that are not carbon-carbon composite.