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RAPID MICROWAVE-SOLVOTHERMAL SYNTHESIS AND SURFACE MODIFICATION OF NANOSTRUCTURED PHOSPHO-OLIVINE CATHODES FOR LITHIUM ION BATTERIES

United States Patent Application

20090117020
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
The present invention includes methods, coatings, and a nanostructured phospho-olivine composition Li.sub.xM.sub.yPO.sub.4, capable of being formed hydrothermally or solvothermally in aqueous solutions and non-aqueous solutions M is one or more elements selected from the group consisting of Fe, Mn, Co, Ti, Ni, Cu, V, Mo, Zn, Mg, Cr, Al, Ga, B, Zr, Nb or combination thereof and x is between 0 and 1 and y is between 0.8 and 1.2. The phospho-olivine may also have the compositions like Li.sub.xFe.sub.1-yM.sub.yPO.sub.4, wherein x is between 0 and 1, and y is between 0 and 1.
Manthiram, Arumugam (Austin, TX), Murugan, Arumugam Vadivel (Austin, TX), Theivanayagam, Muraliganth (Austin, TX)
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (Austin TX)
12/ 139,323
June 13, 2008
STATEMENT OF FEDERALLY FUNDED RESEARCH [0002] This invention was made with U.S. Government support under Contract No. DE-AC03-76SF00098 (Subcontract No. 6712770) by DOE, the Office of Vehicle Technologies of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 and 20-52022-UT0507 by NASA. The government has certain rights in this invention.