Preparation and Properties of Ultrafine Active Carbon for Electrode Material

The commercial active carbon (AC) was milled using self-made vibration mill.The structure of AC,including specific surface and distribution of pore diameter,and its electrochemical and charge-discharge capabilities were analyzed.The specific surface increased by 27%,from 1 739.8 m2/g to 2 215 m2/g.And the micropore volume increased by 25%,mesopore volume increased by 30%,specific capacitance increased to 213.4 F/g after milling.