High performance carbon nanotube based fiber-shaped supercapacitors using redox additives of polypyrrole and hydroquinone

Abstract

A high performance fiber-shaped supercapacitor is fabricated from macroscopic CNT films by adding polypyrrole (PPy) to the electrodes and hydroquinone (HQ) to the electrolyte, simultaneously. HQ and PPy have synergistic effects on the supercapacitor.