AN ALL-POLYMER CHARGE STORAGE DEVICE

Conducting polymers that can be switched between a neutral state and a doped state are of interest for charge storage applications. We repor t on the fabrication of an all-polymer charge storage device incorpora ting derivatized polythiophene films electropolymerized onto graphite- coated polymeric supports and a polymer gel electrolyte film. The devi ces exhibited discharge voltages of about 2.4 V and capacities of 9.5- 11.5 mAh g(-1). The elimination of any metallic components or liquids and the lightweight and flexible construction provides a unique approa ch for the fabrication of organic power sources. (C) 1997 American Ins titute of Physics.