Rechargeable aqueous zinc-ion batteries (ZIBs) have become a key research object in the field of new generation energy storage devices due to their high safety, low cost and eco-friendliness, and show a promising potential application. In this work, CuV₂O₆ nanobelts were synthesized by the hydrothermal method and freestanding CuV₂O₆/reductive acidified carbon nanotube (CVO/RCNTs) composite film without any binder was synthesized by vacuum filtration. The aqueous Zn//CVO/RCNTs batteries presented a admirable reversible capacity of 353 mAh g^-1 at 0.1 A g^-1 and the cycling performance with a high reversible capacity of 174.7 mAh g^-1 and 61.5% capacity retention after 1400 cycles at 5 A g^-1,making rings round the vast majority reported zinc ion batteries.More importantly, the CVO/RCNTs composite films had stable electrochemical properties under different bending degrees after preparation into flexible gel batteries, demonstrating great potential in the field of flexible wearable zinc ion batteries.

可充电水系锌离子电池（ZIBs）由于其安全性高、成本低、环境友好，已成为新一代储能装置领域的重点研究对象，并显示出广阔的应用前景。在这项工作中，通过水热法合成了CuV ₂ O ₆纳米带，并通过真空过滤合成了没有任何粘合剂的独立式CuV ₂ O ₆ /还原酸化碳纳米管（CVO / RCNTs）复合膜。水系Zn//CVO/RCNTs电池在0.1 A g ^-1时表现出令人赞叹的353 mAh g ^-1可逆容量和174.7 mAh g ^-1高可逆容量的循环性能在 5 A g ^{-1 下}循环 1400 次后容量保持率为 61.5% ，使绝大多数报道的锌离子电池成环。更重要的是，CVO/RCNTs 复合薄膜在制备成柔性凝胶电池后在不同弯曲度下具有稳定的电化学性能，在柔性可穿戴锌离子电池领域显示出巨大的潜力。