Abstract: Electric double-layer capacitors using activated carbon as their electrodes are peculiar power sources with a high reliability, it is extremely resistant to oxidation, chemical and heat treatment. In this paper, we have developed the material of electric double-layer capacitors prepared from pyrolytic treatment of phenol formaldehyde resin. The experiment results of its electrochemical properties show that this kind of capacitor has a large capacity, good cycle life and can be used in a large scale.

Key words: Phenol formaldehyde resin, Polyacenes, Electric double-layer capacitors, Electrochemical properties