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Keywords:

  • Batteries;
  • Conducting polymers;
  • Polypyrroles;
  • Redox activity
Thumbnail image of graphical abstract

An energy-storage device consisting of polypyrrole (pPy) doped with indigo carmine (IC) and 2,2'-azinobis (3-ethylbenzothiazoline-6-sulfonate) (ABTS) has been fabricated. These redox-active conducting polymers (see figure) form the basis of a battery that depends on the faradaic reactions of the redox-active dopants, and performs better than conventional batteries and ultracapacitors at high power density.