Bendable tube-shaped supercapacitor based on reduced graphene oxide and Prussian blue coated carbon fiber yarns for energy storage

Carbon fiber yarns were used as supercapacitor electrodes via electrocoating of low-cost and environmental benign precursors i.e., graphene and Prussian blue. The obtained asymmetric device exhibited excellent bendability and remarkable specific energy of 52.1 Wh/kg.105