Abstract
Recently, we have succeeded to prepare a new type of polyacenic semiconductor (PAS) which is made in the form of sheet or plate with a bulk density of about 0.4g/cm 3 from phenol-formaldehyde resin through pyrolytic process. A typical PAS has a H/C molar ratio of 0.25 and an electrical conductivity of 10 −5S/cm. The specific surface area is above 2000m 2/g and the bending strength is 100–150kg/cm 2. We constructed two types of storage batteries using a disk formed PAS as electrode and solution of lM LiClO 4 in SL + γ-BL (1:1 in volume) as electrolyte. These batteries displayed excellent reversibility for electrochemical doping-undoping process and very small self-discharge. We believe PAS battery is one of the first application of conductive polymers for practical use.
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