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High Conductivity NASICON Electrolyte for Room Temperature Solid-State Sodium Ion Batteries

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Solid electrolytes compositions, methods of making the solid electrolytes, and methods of using the solid electrolytes in batteries and other electrochemical technologies are disclosed. The method of producing a solid electrolyte comprises (a) ball milling Na2CO3, SiO2, NH4H2PO4, a zirconium source, and a dopant to produce a ball milled powder; (b) calcining the ball milled powder to produce a calcined powder; and (c) sintering the calcined powder to produce a solid electrolyte. The zirconium source for the solid electrolyte may be ZrO2. The dopant for the solid electrolyte may be AI2O3, Fe2O3, Sb2O3, Yb2O3, or Dy2O3.
Wachsman, Eric D. (Fulton, MD), Hitz, Gregory Thomas (Potomac, MD), Lee, Kang Taek (Greenbelt, MD)
University of Marylnd, College Park (College Park MD)
14/ 430,453
September 25, 2013
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0001] This invention was made with government support under DEAC0494AL850000 awarded by the Department of Energy. The government has certain rights to this invention.