A novel synthesis towards a vanadium pentoxide porous nanodisk film as a cathode material for advanced Li-ion hybrid capacitors

Abstract

A V₂O₅ porous nanodisk thin film is synthesized through a simple hydrothermal and subsequent VO₂ template oxidation strategy. For the first time, V₂O₅ is employed as a cathode rather than an anode to construct lithium-ion hybrid capacitors. This design effectively utilizes the intrinsic layered structure of V₂O₅ for facile Li⁺ intercalation and facilitates the charge balance with the capacitive electrode, enabling superior performance of the device.