c components, supercapacitors can be used as auxiliary equipment of other thermalР management systems to enhance local heat transfer capabilities. As for power batteries, supercapacitors use the waste heatР generated by the power system to perform thermoelectric conversion, which improves the electrical performance of the carР to a certain extent and prevents a large amount of waste heat from accumulating and burning the battery. Finally, we discussР the major challenges faced by supercapacitors based on thermoelectric conversion, along with future prospects.Р thermoelectric conversion, supercapacitor, conversion efficiency, temperature coefficient, temperature gradientР doi: 10.1360/TB-2021-1282Р 12