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:
Mar. 16, 2010
Filed:
Sep. 25, 2007
Arumugam Manthiram, Austin, TX (US);
Yan Wu, Austin, TX (US);
Arumugam Manthiram, Austin, TX (US);
Yan Wu, Austin, TX (US);
Board of Regents, The University of Texas Systems, Austin, TX (US);
Abstract
The present invention includes compositions, surface and bulk modifications, and methods of making of (1−x)Li[LiMn]O.xLi[MnNiCo]Ocathode materials having an O3 crystal structure with a x value between 0 and 1 and y value between 0 and 0.5, reducing the irreversible capacity loss in the first cycle by surface modification with oxides and bulk modification with cationic and anionic substitutions, and increasing the reversible capacity to close to the theoretical value of insertion/extraction of one lithium per transition metal ion (250-300 mAh/g).