Aqueous Zn metal batteries (AZBs) are considered as a promising candidate of existing lithium-ion batteries for grid-scale energy storage systems owing to their inherent safety, low cost, and natural abundance. However, the practical application of AZBs is still limited by severe dendrites, corrosion, and hydrogen evolution on zinc (Zn) anode as well as the dissolution of most cathode materials. Although Zn metals are relatively stable in mildly acidic aqueous electrolytes even without solid-electrolyte interphase (SEI), the interfacial structure becomes more significant in resolving the afore-mentioned problems. Herein, we comprehensively review the latest progress on the artificial interfacial layers (AILs) for high performance and safe AZBs. Addressing the fundamentals and challenges of AZBs, the functionality and design of AILs will be introduced discussing the current development of surface modified interphase, electrolyte derived SEI, and cathode/electrolyte interphase. Advanced characterization and simulation methods are also summarized for comprehensive analysis on failure and mechanism of AILs. Finally, our perspectives into future research direction of AILs will be presented.

水系锌金属电池（AZBs）由于其固有的安全性、低成本和天然丰富性，被认为是现有锂离子电池用于电网规模储能系统的有希望的候选者。然而，AZBs的实际应用仍然受到锌（Zn）负极严重枝晶、腐蚀和析氢以及大多数正极材料溶解的限制。尽管即使没有固体电解质界面（SEI），锌金属在弱酸性水电解质中也相对稳定，但界面结构在解决上述问题方面变得更加重要。在此，我们全面回顾了用于高性能和安全 AZB 的人工界面层 (AIL) 的最新进展。解决 AZB 的基本原理和挑战，将介绍 AIL 的功能和设计，讨论表面改性界面、电解质衍生 SEI 和阴极/电解质界面的当前发展。还总结了先进的表征和模拟方法，以全面分析AIL的故障和机理。最后，我们将介绍我们对 AILs 未来研究方向的看法。