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SOLAR FLOW BATTERY

United States Patent Application

20170179558
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A solar flow battery comprising: a positive compartment containing at least one positive electrode in contact with a positive electrolyte containing a first redox active molecule; a negative compartment containing at least one negative electrode in contact with a negative electrolyte containing a second redox active molecule, wherein said first and second redox active molecules remain dissolved in solution when changed in oxidation state; at least one of said negative or positive electrodes comprises a semiconductor light absorber; electrical communication means between said electrodes and an external load for directing electrical energy into or out of said solar flow battery; a separator component that separates the positive and negative electrolytes while permitting the passage of non-redox-active species; and means for establishing flow of the positive and negative electrolyte solutions past respective electrodes. Methods of using the solar flow battery for storing and releasing electrical energy are also described.
MCKONE, James R. (Ithaca, NY), ABRUNA, Hector D. (Ithaca, NY)
CORNELL UNIVERSITY (Ithaca NY)
15/ 128,321
March 23, 2015
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] This invention was made with government support under Contract Nos. DE-SC0001086 and DE-AC05-06OR23100 awarded by the Department of Energy. The government has certain rights in the invention.