METHOD FOR OPERATING MOLTEN SALT BATTERY

摘要

Provided is a method for operating a molten salt battery having a sodium compound (NaCrO2) in a positive electrode and tin (Sn) in a negative electrode with a molten salt as an electrolytic solution. Although the operating temperature range of the molten salt battery is originally from 57° C. to 190° C., the molten salt battery is operated with an internal temperature thereof (temperature of electrodes and molten salt) set at from 98° C. to 190° C. to cause sodium to turn to a liquid phase. The sodium penetrates into a Sn—Na alloy micronized in the negative electrode, so that separation of the Sn—Na alloy is suppressed.