Sodium-halogen secondary cell

Bhavaraju, Sai; Robins, Mathew; Eccleston, Alexis

Sodium-halogen secondary cell

Patent · Tue Dec 01 04:00:00 EST 2020

OSTI ID:1771696

Bhavaraju, Sai; Robins, Mathew; Eccleston, Alexis

An intermediate temperature sodium-halogen secondary cell that includes a negative electrode compartment housing a negative, molten sodium-based electrode and a positive electrode compartment housing a current collector disposed in a highly conductive molten positive electrolyte. A sodium halide (NaX) positive electrode is disposed in a molten positive electrolyte comprising one or more AlX3 salts, wherein X may be the same or different halogen selected from Cl, Br, and I, wherein the ratio of NaX to AlX3 is greater than or equal to one. A sodium ion conductive solid electrolyte membrane separates the molten sodium negative electrode from the molten positive electrolyte. The secondary cell operates at a temperature in the range from about 80° C. to 210° C.

Research Organization:: Field Upgrading USA, Inc., Broomfield, CO (United States)

Sponsoring Organization:: USDOE

Assignee:: Field Upgrading USA, Inc. (Broomfield, CO)

Patent Number(s):: 10,854,929

Application Number:: 14/956,078

OSTI ID:: 1771696

Country of Publication:: United States

Language:: English

References (10)

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