▎ 摘　　要

NOVELTY - The carbon composite material has spaced graphene sheets, each respectively having opposed planar surfaces, and functionalized carbonaceous particles. The functionalized carbonaceous particles are disposed between any two adjacent GSs and each respectively attached to both respective any two adjacent GSs. Each respective GS has layer of graphene. Portions of respective any two adjacent GSs are oriented parallel with one another. The carbonaceous particles are amorphous carbon and functionalized with sulfonic acid radicals. USE - Carbon composite material used for activated carbon-based electrodes for supercapacitor. ADVANTAGE - The incorporation of nanocarbon particles into the GSs not only increased the surface area, but also acted as spacers between the graphene sheets to create diffusion paths for the liquid electrolytes, which facilitated the rapid transport of the electrolyte ions, consequently resulting in the improved electrochemical properties of the graphene sheet nanocarbon composites (GSNCs). Graphene sheet composite-based capacitors using the composite material for the electrodes exhibited enhanced rate capability, the maximum sustainable continuous or pulsed current output. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a method of manufacturing a high surface area graphene composite material; and (2) an energy storage device. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a supercapacitor using electrodes made from the carbon composite material. Activated carbon-based electrodes (105)