Metal–Organic Framework‐Derived Co3V2O8@CuV2O6 Hybrid Architecture as a Multifunctional Binder‐Free Electrode for Li‐Ion Batteries and Hybrid Supercapacitors

Abstract Metal–organic frameworks (MOFs) are promising materials in diverse fields because of their constructive traits of varied structural topologies, high porosity, and high surface area. MOFs are also an ideal precursor/template to derive porous and functional morphologies. Herein, Co 3 V 2 O 8 nanohexagonal prisms are grafted on CuV 2 O 6 nanorod arrays (CuV‐CoV)‐grown copper foam (CF) using solution‐processing methods, followed by thermal treatment. Direct preparation of active material on CF can potentially eliminate electrochemically inactive and non‐conductive binders, leading to improved charge‐transfer rate. Furthermore, solution‐processing methods are simple and cost‐effective. Owing to versatile valence states and good redox activity, the vanadium‐incorporated mixed metal oxides (CuV‐CoV) exhibited superior electrochemical performance in lithium (Li)‐ion battery and supercapacitor (SC) studies. Furthermore, hollow carbon particles (HCPs) derived from MOF particles (MOF‐HCPs) are used as the anode material in SCs. A hybrid SC (HSC) fabricated with CuV‐CoV and MOF‐HCP materials exhibited noteworthy electrochemical properties. Moreover, a solid‐state HSC (SSHSC) is constructed and its real‐time feasibility is investigated by harvesting the dynamic energy of a bicycle with the help of a direct current generator. The charged SSHSCs potentially powered various electronic components.