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:
Dec. 23, 2014
Filed:
Sep. 29, 2009
Sujeet Kumar, Newark, CA (US);
Herman Lopez, Sunnyvale, CA (US);
Subramanian Venkatachalam, Pleasanton, CA (US);
Deepak Karthikeyan, Foster City, CA (US);
Sujeet Kumar, Newark, CA (US);
Herman Lopez, Sunnyvale, CA (US);
Subramanian Venkatachalam, Pleasanton, CA (US);
Deepak Karthikeyan, Foster City, CA (US);
Envia Systems, Inc., Hayward, CA (US);
Abstract
Lithium rich metal oxyfluorides are described with high specific capacity and, good cycling properties. The materials have particularly good high rate capabilities. The fluorine dopant can be introduced in a low temperature process to yield the materials with desirable cycling properties. In some embodiments, the positive electrode active materials have a composition represented approximately by the formula LiNiMnCoAOFwhere: