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Aqueous zinc batteries with low cost and inherent safety are considered to be the most promising energy storage devices. V2O5/Flake graphite material have been successfully synthesized via high-temperature magnetic stirring and sintering method. V2O5/Flake graphite material were characterized by X-ray diffraction, FESEM, XPS and TGA. The addition of flake graphite not only improves the conductivity of the cathode material, provides more active sites for the Zn2+ insertion/extraction process, but also has a certain isolation effect, avoiding the direct contact between the electrolyte and the V2O5 to cause dissolution. VC51 delivers a high discharge capacity of 328.1 mA h g–1 at 0.1 A g–1, good capacity retention of 81.4% after 300 cycles, shows good cycling stability. [ABSTRACT FROM AUTHOR]