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:
Jun. 18, 2013
Filed:
Dec. 11, 2008
Herman Lopez, Sunnyvale, CA (US);
Subramanian Venkatachalam, Fremont, CA (US);
Sujeet Kumar, Newark, CA (US);
Deepak Kumaar Karthikeyan, San Mateo, CA (US);
Herman Lopez, Sunnyvale, CA (US);
Subramanian Venkatachalam, Fremont, CA (US);
Sujeet Kumar, Newark, CA (US);
Deepak Kumaar Karthikeyan, San Mateo, CA (US);
Envia Systems, Inc., Newark, CA (US);
Abstract
Positive electrode active materials are described that have a high tap density and high specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. Some materials of interest have the formula LiNiMnCoO, where x ranges from about 0.05 to about 0.25, α ranges from about 0.1 to about 0.4, β ranges from about 0.4 to about 0.65, and γ ranges from about 0.05 to about 0.3. The materials can be coated with a metal fluoride to improve the performance of the materials especially upon cycling. Also, the coated materials can exhibit a very significant decrease in the irreversible capacity lose upon the first charge and discharge of the battery.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile