Realizing stable zinc (Zn) metal anodes under deep cycling conditions is a prerequisite for practical rechargeable Zn batteries, but it remains a significant challenge due to severe water erosion and dendrite growth on Zn. Herein, a robust hetero-metal-polymer hybrid interphase composed of Pb nanoparticles embedded on the polyvinylidene difluoride (PVDF) matrix is integrated on the Zn anode in situ by a one-step chemical displacement reaction to tackle these dilemmas. This concept can be readily extended to construct Bi-PVDF and Sn-PVDF hybrid interphases on Zn. Unlike the commonly developed hydrophilic and thick metal-based interphases, the superhydrophobic, thin, and seamless Pb-PVDF interphase, as a model example, can prevent water access to the Zn surface and exhibit an ultralow H₂ evolution reaction potential, thus avoiding water-induced side reactions. Moreover, the flexible Pb-PVDF hybrid interphase with strong zincophilicity enables the dendrite-free and epitaxial Zn deposition. Consequently, the Pb-PVDF@Zn electrode manifests an ultralong lifespan over 8100 h (0.5 mA h cm⁻² at 1 mA cm⁻²) and unprecedented deep cycling stability under 85.3% depth-of-discharge over 800 h (10 mA h cm⁻² at 20 mA cm⁻²), which is a 160-fold elongation of lifespan compared with that of a bare Zn electrode. Moreover, Pb-PVDF@Zn assures the stable operation of full Zn batteries with conventional V/Mn-oxide cathodes using both coin and pouch configurations.

中文翻译：

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超疏水和稳健的异质金属-聚合物混合界面可实现深度循环锌金属阳极


在深度循环条件下实现稳定的锌 （Zn） 金属负极是实用可充电 Zn 电池的先决条件，但由于严重的水蚀和 Zn 上的枝晶生长，这仍然是一个重大挑战。在此，由嵌入聚偏二氟乙烯 （PVDF） 基体上的 Pb 纳米颗粒组成的稳健的异金属-聚合物杂化界面原位集成在 Zn 阳极上通过一步化学置换反应来解决这些困境。这个概念可以很容易地扩展到在 Zn 上构建 Bi-PVDF 和 Sn-PVDF 杂化界面。与通常开发的亲水性和厚金属基界面不同，超疏水性、薄而无缝的 Pb-PVDF 界面作为模型示例，可以防止水进入 Zn 表面并表现出超低的 H₂ 析出反应电位，从而避免了水诱导的副反应。此外，具有强亲锌性的柔性 Pb-PVDF 杂化界面可实现无枝晶和外延 Zn 沉积。因此，Pb-PVDF@Zn 电极在 8100 小时内表现出超长的使用寿命（在 1 mA ^cm-2 时为 0.5 mA h ^cm-2），并在 800 小时内在 85.3% 放电深度下具有前所未有的深度循环稳定性（在 20 mA ^cm-2 时为 10 mA h ^cm-2），与裸锌电极相比，使用寿命延长了 160 倍。此外，Pb-PVDF@Zn 确保了使用硬币和软包配置的传统 V/Mn 氧化物阴极的全锌电池的稳定运行。