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V.sub.2O.sub.5 electrodes with high power and energy densities

United States Patent

December 6, 2016
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
Methods are provided for forming films of orthorhombic V.sub.2O.sub.5. Additionally provided are the orthorhombic V.sub.2O.sub.5 films themselves, as well as batteries incorporating the films as cathode materials. The methods use electrodeposition from a precursor solution to form a V.sub.2O.sub.5 sol gel on a substrate. The V.sub.2O.sub.5 gel can be annealed to provide an orthorhombic V.sub.2O.sub.5 film on the substrate. The V.sub.2O.sub.5 film can be freestanding such that it can be removed from the substrate and integrated without binders or conductive filler into a battery as a cathode element. Due to the improved intercalation properties of the orthorhombic V.sub.2O.sub.5 films, batteries formed using the V.sub.2O.sub.5 films have extraordinarily high energy density, power density, and capacity.
Cao; Guozhong (Seattle, WA), Liu; Yanyi (Seattle, WA)
University of Washington through its Center for Commercialization (Seattle, WA)
13/ 863,066
April 15, 2013
STATEMENT OF GOVERNMENT LICENSE RIGHTS This invention was made with Government support under Contract Number CMMI-1030048, awarded by the National Science Foundation, and Grant Number DE-AC05-76RL01830, awarded by the U.S. Department of Energy. The Government has certain rights in the invention.