Aqueous zinc-ion batteries (ZIBs) are a promising solution for energy storage due to their affordability, high performance, environmental friendliness, and excellent safety features. However, zinc metal anodes are prone to capacity degradation and short circuits due to side reactions and dendrite growth during cycling. To address this issue, a dual-function artificial solid electrolyte interphase (SEI) made of zinc succinate complex (ZnSA) is in-situ constructed on zinc anodes by a simple and cost-effective soaking approach. This interphase is hydrophobic and highly ionic conductive (4.5 mS cm). It has a low electronic conductivity (1.6 mS cm) and a large Zn transfer number (0.63). The hydrophobic SEI progressively represses water-induced side reactions, lowers zinc nucleation overpotential, accelerates zinc ion diffusion, and regulates homogeneous zinc deposition. As a result, the ZnSA@Zn symmetric cell achieves an impressive lifespan of 4450 h at 1 mA cm for 0.5 mAh cm, which is significantly better than the bare zinc cell and superior to many recently reported zinc anodes. Furthermore, the VO//ZnSA@Zn batteries exhibit outstanding rate performance and remarkable long-term operation stability for 2000 cycles at 1 A/g. This innovative and cost-effective strategy opens up new possibilities for developing high-performance aqueous zinc-ion batteries.

中文翻译：

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具有高离子电导率的疏水性琥珀酸锌界面相向稳定锌阳极的原位生长

水系锌离子电池（ZIB）因其经济实惠、高性能、环境友好和出色的安全特性而成为一种有前途的储能解决方案。然而，锌金属负极容易因循环过程中的副反应和枝晶生长而导致容量下降和短路。为了解决这个问题，通过简单且经济有效的浸泡方法在锌阳极上原位构建了由琥珀酸锌络合物（ZnSA）制成的双功能人造固体电解质界面（SEI）。该界面具有疏水性和高离子导电性 (4.5 mS cm)。它具有低电子电导率（1.6 mS cm）和大锌转移数（0.63）。疏水性 SEI 逐渐抑制水引起的副反应，降低锌成核过电势，加速锌离子扩散，并调节均匀的锌沉积。因此，ZnSA@Zn 对称电池在 1 mA cm、0.5 mAh cm 下实现了 4450 小时的令人印象深刻的寿命，这明显优于裸锌电池，并且优于许多最近报道的锌阳极。此外，VO//ZnSA@Zn电池在1 A/g下表现出出色的倍率性能和出色的2000次循环的长期运行稳定性。这种创新且具有成本效益的策略为开发高性能水性锌离子电池开辟了新的可能性。