Vanadium-based materials are promising cathode materials for aqueous rechargeable zinc-ion batteries (ZIBs), but the poor cycling stability and low Zn2+ migration kinetics limit their electrochemical performance and practical application.Herein, a conductive MOFs intercalated vanadium oxide cathode with a dual energy-storage mechanism is designed and prepared for high specific capacity and long lifespan ZIBs. The intercalated Ni-BTA can not only enlarge the interlayer spacing of vanadium to improve the Zn2+ migration kinetics, but also as the active materials to participate the storage of Zn2+. This cathode material exhibits an improved specific capacity of 439.3 mAh g-1 at 0.2 A g-1 and excellent long cycle durability over 1000 cycles at 5 A g-1 with a capacity retention of 82.0%. This work of constructing a conductive MOF intercalated vanadium oxide cathode material with a dual energy-storage mechanism paves a novel way for high-energy secondary batteries.
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