METHOD FOR MANUFACTURING ACTIVATED CARBONS WITH HIGH SPECIFIC SURFACE AREA AS AN ELECTRODES OF CAPACITORS

摘要

A method for fabricating activated carbons with high specific surface area for a capacitor electrode is provided to reduce the volume of a special reactor by suppressing explosive boiling by removing materials of low molecular weight causing a bubbling phenomenon when temperature increases. An available THF removal step(S10) controls the available amount of THF in a coal carbon material to be 5wt% or 10wt%. A mixing step(S20) mixes NaOH or KOH into the carbon material in a reactor, so that weight ratio of the carbon material and the activator becomes 1:2 or 1:6. An absorption step(S30) maintains internal temperature of the reactor as 400-500 degrees in order for the activator to be absorbed into the carbon material completely. An activating step(S40) induces activation reaction by increasing the internal temperature of the reactor to 600-900 degrees after the absorption step.