A physical based model of power electric double-layer supercapacitors
Résumé
Recent developments in the field of supercapacitors have led to the achievement of high specific and high power density devices. With capacities of several hundred farads and serial resistances less than one milliohm, these new components are suitable for energy storage in high power electronic applications, especially in the field of management of embarked electrical power (hybrid power sources, energy recovery). This paper deals with investigations, including theory, characterisation and experimental validation, on an accurate electric double-layer supercapacitor modelling based on the physics of phenomena governing charges storage, which theoretically leads to a transmission line with voltage dependant distributed capacitance.