Aqueous Zn‐ion batteries (ZIBs) are considered to be one of the most promising energy storage devices in the post‐lithium‐ion era with fast ionic conductivity, safety, and low cost. However, excessive accumulation of zinc dendrites will fracture and produce dead zinc, resulting in the unsatisfied utilization rate of Zn anodes, which greatly restricts the lifespan of the battery and reduces the reversibility. In this paper, by constructing a protective layer of ZnSnO3 hollow nanospheres in situ growth on the surface of the Zn anode, more zincophilic sites are established on the electrode surface. It demonstrates that uniform deposition of Zn ions by deepening the binding energy with Zn ion and its unique hollow structure shortens the diffusion distance of Zn ions and enhances the reaction kinetics. The assembled Zn‐ion hybrid supercapacitor (ZHSC) of ZnSnO3@Zn//AC achieved a long‐term lifespan with 4000 cycles at a current density of 10 mA cm−2 with a Coulombic efficiency of 99.31% and capacity retention of 79.6%. This work offers a new path for advanced Zn anodes interphase supporting the long cycle life with large capacities and improving electrochemical reversibility.

中文翻译：

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亲锌纳米球在锌金属阳极上组装为固体电解质界面，用于可逆高倍率锌离子存储


水系锌离子电池（ZIB）被认为是后锂离子时代最有前途的储能装置之一，具有快速的离子传导性、安全性和低成本。然而，锌枝晶的过度堆积会断裂并产生死锌，导致锌负极的利用率不理想，极大地限制了电池的寿命并降低了可逆性。本文通过在锌阳极表面原位生长构建ZnSnO3空心纳米球保护层，在电极表面建立更多的亲锌位点。结果表明，通过加深与Zn离子的结合能，Zn离子均匀沉积，其独特的中空结构缩短了Zn离子的扩散距离，增强了反应动力学。 ZnSnO3@Zn//AC组装的锌离子混合超级电容器（ZHSC）在10 mA cm−2的电流密度下实现了4000次循环的长期寿命，库仑效率为99.31%，容量保持率为79.6%。这项工作为先进的锌负极界面提供了一条新途径，支持大容量的长循环寿命并提高电化学可逆性。