Carbon Materials for Supercapacitors
Supercapacitors have attracted intense attention due to their great potential to meet the demand of both high energy density and power density in many advanced technologies. Various carbon materials, including porous carbon, graphene, carbon fiber, carbon nanotube, and carbon network, are currently pursued as supercapacitor electrodes because of their high specific surface area, high electronic conductivity, high chemical stability, and low cost. In additions, the flexible solid state supercapacitors based on carbon materials with long cycle life, high power density, environmental friendliness, and safety afford a promising option for energy storage applications. Then, we review the relevant results about carbon based capacitive materials and view the ongoing trends in advanced supercapacitors.