Low temperature sodium battery comprising an electrochemically active molten inorganic catholyte

Spoerke, Erik D.; Percival, Stephen J.; Gross, Martha M.; Lee, Rose Y.; Small, Leo J.

Low temperature sodium battery comprising an electrochemically active molten inorganic catholyte

Patent · Tue Apr 16 00:00:00 EDT 2024

OSTI ID:2542081

Spoerke, Erik D.; Percival, Stephen J.; Gross, Martha M.; Lee, Rose Y.; Small, Leo J.

A high-performance electrochemically active sodium molten salt catholyte enables a dramatic reduction in molten sodium battery operating temperature from near 300° C. to less than 120° C. As an example, stable electrochemical cycling was demonstrated in a high voltage (3.65 V) sodium battery comprising a sodium iodide-gallium chloride (NaI—GaCl₃) molten salt catholyte for over 8 months at 110° C. The combination of high voltage, stable cycling behavior, and practical current densities supported by a molten catholyte enables a new generation of transformative high performance, low temperature molten sodium batteries.

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Research Organization:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

DOE Contract Number:: NA0003525

Assignee:: National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)

Patent Number(s):: 11,962,009

Application Number:: 17/505,413

OSTI ID:: 2542081

Country of Publication:: United States

Language:: English

References (22)

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