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Hybrid energy storage devices having sodium

United States Patent

9,252,461
February 2, 2016
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
Sodium energy storage devices employing aspects of both ZEBRA batteries and traditional Na--S batteries can perform better than either battery alone. The hybrid energy storage devices described herein can include a sodium anode, a molten sodium salt catholyte, and a positive electrode that has active species containing sulfur. Additional active species can include a transition metal source and NaCl. As a product of the energy discharge process, Na.sub.2S.sub.x forms in which x is less than three.
Lu; Xiaochuan (Richland, WA), Kim; Jin Yong (Richland, WA), Li; Guosheng (Richland, WA), Lemmon; John P. (Kennewick, WA), Sprenkle; Vincent L. (Richland, WA)
Battelle Memorial Institute (Richland, WA)
13/ 948,857
20140023903
July 23, 2013
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Contract DE-AC0576RLO1830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.