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Electrolyte for stable cycling of high-energy lithium sulfur redox flow batteries

United States Patent

9,954,229
April 24, 2018
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
A device comprising: a lithium sulfur redox flow battery comprising an electrolyte composition comprising: (i) a dissolved Li.sub.2S.sub.x electroactive salt, wherein x.gtoreq.4; (ii) a solvent selected from dimethyl sulfoxide, tetrahydrofuran, or a mixture thereof; and (iii) a supporting salt at a concentration of at least 2 M, as measured by moles of supporting salt divided by the volume of the solvent without considering the volume change of the electrolyte after dissolving the supporting salt.
Xiao; Jie (Richland, WA), Liu; Jun (Richland, WA), Pan; Huilin (Richland, WA), Henderson; Wesley A. (Richland, WA)
Battelle Memorial Institute (Richland, WA)
14/ 530,442
20160126580
October 31, 2014
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY-SPONSORED RESEARCH AND DEVELOPMENT This invention was made with Government support under Contract DE-AC05-76RL01830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.