Thermal battery with reduced operational temperature

摘要

An electrochemical cell for a medium-temperature thermal battery includes an electrolyte having a melting point between 75° C. and 200° C., a thermal decomposition temperature above 300° C., and consisting essentially of at least one organic salt. The electrolyte is ionically conductive at temperatures from the melting point to at least the thermal decomposition temperature, generating a voltage across a cathode and an anode of the cell. The electrolyte is ionically non-conductive at temperatures below the melting point.