Influence of Structure of Porous Carbon on the Capacitive Performance

Due to their high power density,wide operating temperature range,ultra-long cycle life,environmental friendliness and low cost,supercapacitors(SCs)have attracted considerable attention as a new energy storage system.They are now widely used in consumer electronics,electric vehicles,wind farms and solar power plants.The electrode materials are the key factor in determining the performance of SCs.Carbon-based materials,especially activated carbon(AC),dominate mainly in commercial SCs.Their capacitive performance is highly dependent on the structure of porous carbon,including parameters such as pore structure and pore size,surface microstructure and functional groups,heteroatom doping,as well as conductivity and specific surface area.