the activated carbon is well suitable for the electric materials for super capacitor with high performance, low impurities, black powdered form. 
Surface Area: more than 2000m2/g;
Ash: less than 0.5%;
Particle Size(D50):~10um;
Moisture: < 5%;
the carbon has been mass-produced, applied for super capacitors (also named electric double-layer capacitors) for over ten years.