Oxygen-vacancy V2O5 ultrathin nanosheets adorned with PEDOT films as anodes for high-energy-density asymmetric supercapacitors

Oxygen-vacancy PEDOT/V 2 O 5 nanosheets are obtained by the oxidative polymerization of EDOT on V 2 O 5 without other oxidants. The energy density of supercapacitors composed of PEDOT/V 2 O 5 and activated carbon reaches 65 W h kg −1 .