Rechargeable aqueous zinc ion batteries (ZIBs) have attracted increasingly solicitude in the application of large-scale electrochemical energy storage system (EES) as a result of their low-price, high security and environment-friendly. The synthesis of mass-produced electrode materials and the exploration of their potential electrochemical properties are essential steps to achieve superior large-scale EES. In this work, the large-scale preparation of vanadium oxyphosphate hydrate (VOPO₄⋅2H₂O) cathode material with impressively zinc storage ability is successfully demonstrated. Specially, it exhibits a high specific capacity of 165 mAh g^–1 at 0.05 A g^–1, and prominent rate property (90 and 75 mAh g^–1 at 2 and 5 A g^–1, respectively), as well as stable cyclability of 76% after 1000 cycles under a high current density of 5 A g^–1 within the voltage window of 0.4–1.6 V (versus Zn²⁺/Zn). Moreover, the VOPO₄⋅2H₂O not only spreads superiority in electrochemical performance, but also shows the advantages of scalable production based on simple controllable adjustment in synthesis, which is expected to exhibit great development potential in the field of large-scale EES application.

可充电水性锌离子电池（ZIBs）价格低廉，安全性高，环境友好，因此在大型电化学储能系统（EES）的应用中受到越来越多的关注。大规模生产的电极材料的合成及其潜在的电化学性能的探索是实现卓越的大规模EES的必要步骤。在这项工作中，氧磷酸钒水合物的大规模制备（VOPO ₄ ⋅2H ₂ O）阴极材料与令人印象深刻的锌存储能力被成功地证明。特别是，它在0.05 A g ^–1时具有165 mAh g ^–1的高比容量，并具有出色的速率特性（90和75 mAh g ^–1分别在2和5 A g ^–1下），以及在0.4–1.6 V的电压窗口内（相对于Zn ²⁺ / Zn）在5 A g ^–1的高电流密度下，经过1000次循环后，稳定的可循环性为76％）。此外，VOPO ₄ ⋅2H ₂ O不可只敷于优越性在电化学性能，而且还示出了可伸缩的生产基于在合成简单可控调整，预计在大规模应用EES的场呈现巨大发展潜力的优势。