Halide and Nitrate Electrolytes of Thermal Batteries

Thermal batteries have become irreplaceable energy-storage devices in the field of high-temperature power supplies with the rapid development of energy technology. Electrolyte materials with a low melting point and high ionic conductivity are being widely studied. This paper presents a review of electrolytes (including halides and nitrates) used in thermal batteries. In addition, the electrochemical and physicochemical properties of different electrolytes are compared comprehensively and further discussed.