Aqueous rechargeable zinc-ion batteries have become an ideal solution for the next generation of energy storage systems due to their low cost and high safety. However, the uncontrollable zinc dendrites and harmful side reactions of metal zinc anodes hinder the further development of aqueous zinc-ion batteries. In this work, the artificial fluoride zinc oxide (F-ZnO) interface phase is integrated in situ on the surface of zinc foil. The F-ZnO interface phase significantly inhibits the side reactions on the surface of the zinc electrode by reducing the direct contact between the electrolyte and the surface of the zinc foil. In addition, F-ZnO modified by a small amount of F doping shows enhanced conductivity and electron transport capacity, avoiding the accumulation of high concentration Zn²⁺ on the anode surface, and ultimately promoting the efficient nucleation and orderly deposition of a zinc anode. The cycle life of the symmetrical cell based on F-ZnO is as high as 2600 cycles at an area current density of 4 mA cm^–2, which is much better than that of a commercial pure Zn electrode. The modified F-ZnO@Zn anode truly achieves the purpose of prolonging the anode’s life.

中文翻译：

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用于水系锌离子电池稳定阳极的 n 型氟化 ZnO 界面相的构建


水系可充电锌离子电池由于其低成本和高安全性已成为下一代储能系统的理想解决方案。然而，金属锌负极不可控的锌枝晶和有害的副反应阻碍了水系锌离子电池的进一步发展。在这项工作中，人造氟化物氧化锌（F-ZnO）界面相原位集成在锌箔表面。 F-ZnO界面相通过减少电解液与锌箔表面的直接接触，显着抑制锌电极表面的副反应。此外，少量F掺杂修饰的F-ZnO表现出增强的电导率和电子传输能力，避免了高浓度Zn ²⁺ 在阳极表面的积累，最终促进了高效成核和有序沉积。锌阳极。基于F-ZnO的对称电池在4 mA cm ^–2 面积电流密度下的循环寿命高达2600次循环，远优于商用纯Zn电极。改性F-ZnO@Zn阳极真正达到了延长阳极寿命的目的。