Patent 8221912 was granted and assigned to Panasonic on July, 2012 by the United States Patent and Trademark Office.
The present invention provides a molten salt containing at least two salts, and having a melting point of 350° C. or more and 430° C. or less and an electric conductivity at 500° C. of 2.2 S/cm or more. The present invention also provides a thermal battery including the molten salt as an electrolyte.