“…The key to achieving carbon neutrality is the development of clean, safe, and efficient energy-storage technologies. − Lithium-ion batteries (LIBs) are widely regarded as the most promising energy-storage technology as a result of their exceptional combination of high energy density, long cycle lifespan, absence of memory effect, and low self-discharge. , Although LIBs occupy most of the global energy-storage market, their application in future large-scale energy storage systems is limited by Earth’s limited lithium resources, high preparation costs and flammability, and explosiveness as a result of organic electrolytes. , Accordingly, research is being focused on other new energy-storage technologies that are efficient, safe, and clean. Among them, rechargeable aqueous zinc-ion batteries (AZIBs) offer the advantage of high safety and environmental friendliness as a result of their non-flammable aqueous electrolyte. − Zinc metal has the advantages of high theoretical capacities (820 mAh g –1 and 5854 mAh cm –3 ), low redox potential [−0.76 V versus standard hydrogen electrode (SHE)], high reserves, and low toxicity. , Thus, the emerging ZIBs are receiving extensive research attention. , However, the low specific capacity and instability of the cathode limit the energy density and cycle life of ZIBs. For example, manganese-based materials are structurally unstable during charge/discharge, thereby affecting the battery lifespan. , Prussian blue analogue cathode materials have a low specific capacity despite their high operating voltage. , Among them, vanadium-based materials are receiving extensive research attention for their advantages of open-layer structures and their high theoretical capacity.…”