Aqueous Zn-ion batteries have become one of the most promising candidates for next-generation energy storage devices due to low price, nontoxicity, safety, and high theoretical capacity. However, the issues of Zn dendrite, H₂ evolution, and corrosion severely hinder their future development. Here, a simple NiCo layered double hydroxides (NiCo-LDH) artificial coating is constructed on Zn anode (denoted as NCLZn) by spin-coating method. The prepared NiCo-LDH coating with abundant metal sites not only can increase the active sites to guide the uniform deposition of Zn²⁺, but also can suppress the side reactions as a physical barrier. Meantime, the NiCo-LDH coating also improves the wettability of electrolyte and reduces the interface resistance. Consequently, compared with bare Zn, the symmetric cells with NCLZn anode exhibit a stable overpotential (<20 mV) and long-time lifespan (2500 h) with remarkable coulombic efficiency (>99.0%) at 1 mA cm^-2 and 1 mAh cm^-2. A stable plating/stripping still can be achieved for more than 1580 h, even at 10 mA cm^-2. Simultaneously, the NCLZn/MnO₂ cells present impressive specific capacity of 153 mAh g^-1 at 1 A g^-1 after 1600 cycles. Therefore, this simple and low-cost method provides a positive strategy for the industrialization of aqueous Zn-ion batteries.

水系锌离子电池由于价格低廉、无毒、安全和理论容量高，已成为下一代储能装置最有希望的候选者之一。然而，Zn枝晶、H ₂析出和腐蚀问题严重阻碍了它们的未来发展。在这里，通过旋涂方法在锌阳极（表示为 NCLZn）上构建了一个简单的 NiCo 层状双氢氧化物（NiCo-LDH）人工涂层。制备的具有丰富金属位点的NiCo-LDH涂层不仅可以增加活性位点，引导Zn ²⁺的均匀沉积，而且还可以作为物理屏障抑制副反应。同时，NiCo-LDH涂层还提高了电解液的润湿性，降低了界面电阻。因此，与裸锌相比，具有 NCLZn 阳极的对称电池在 1 mA cm ^-2和 1 mAh cm 下表现出稳定的过​​电位 (<20 mV) 和长寿命 (2500 h) 以及显着的库仑效率 (>99.0%) ^-2 . 即使在 10 mA cm ^{-2 下}，仍然可以实现稳定的电镀/剥离超过 1580 小时。同时，NCLZn/MnO ₂电池在 1 A g ^-1时呈现出令人印象深刻的 153 mAh g ^-1比容量1600 次循环后。因此，这种简单、低成本的方法为水性锌离子电池的产业化提供了积极的策略。