Zinc metal is actively developed as the most potential next generation anode material for aqueous rechargeable batteries. However, Zn deposition and uncontrollable dendrite growth of metallic Zn anodes during cycles lead to poor cycle performance and coulombic efficiency, hindering their practical application. Constructing a three-dimensional (3D) current collector has been demonstrated to significantly inhibit the formation of zinc dendrites. Herein, a lightweight 3D flexible Zn plating/stripping scaffold, Cu nanosheets grown on activated carbon cloth (Cu nanosheets@ACC), is prepared by an electrochemical deposition technology. Compared with activated carbon cloth (ACC), Cu nanosheets@ACC current collector delivers higher special surface area and conductivity. Besides, Cu nanosheets layer not only can provide numerous, uniformly distributed Zn deposition sites but also can significantly decrease Zn nucleation overpotential. As a consequence, Zn@Cu nanosheets@ACC (Zn grown on Cu nanosheets@ACC) anode delivers a highly reversible Zn plating/stripping behavior with satisfactory cyclic stability rather than uncontrollable Zn dendrites growth. Moreover, a zinc ion battery based on the Zn@Cu nanosheets@ACC anode and MnO₂@ACC (MnO₂ grown on ACC) cathode presents high average coulombic efficiency (97.9%) and excellent cycling stability (94.8%) over 1000 cycles at 1 A/g as well as satisfactory mechanical properties, displaying great potential for long-life flexible zinc ion batteries.

锌金属被积极开发为最有潜力的下一代水性可充电电池负极材料。然而，金属锌阳极在循环过程中的锌沉积和不可控的枝晶生长导致循环性能和库仑效率差，从而阻碍了它们的实际应用。已证明构造三维（3D）集电器可显着抑制锌枝晶的形成。在此，通过电化学沉积技术制备了轻质的3D柔性Zn电镀/剥离支架，即在活性炭布上生长的Cu纳米片（Cu nanosheets @ ACC）。与活性炭布（ACC）相比，Cu nanosheets @ ACC集电器可提供更高的比表面积和导电率。此外，铜纳米片层不仅可以提供大量，均匀分布的锌沉积位点，但也可以显着降低锌成核的超电势。结果，Zn @ Cu纳米片@ACC（Zn在Cu纳米片@ACC上生长）阳极提供了高度可逆的Zn镀层/剥离行为，具有令人满意的循环稳定性，而不是不受控制的Zn枝晶生长。此外，基于Zn @ Cu纳米片@ACC阳极和MnO的锌离子电池₂ @ACC（在ACC上生长的MnO ₂）阴极在1 A / g的1000次循环中表现出高的平均库仑效率（97.9％）和出色的循环稳定性（94.8％），以及令人满意的机械性能，具有长寿命的巨大潜力柔性锌离子电池。