All-solid-state batteries (ASSBs) using solid-state electrolytes, replacing flammable liquid electrolytes, are considered one of the most promising next-generation electrochemical energy storage devices because of their improved, inherent safety and energy density. A family of solid electrolytes incorporating halogens has attracted attention because of their potentially high ionic conductivity, good deformability and wide electrochemical windows. Although progress has been made for halogen-containing solid electrolytes (HSEs) in ASSBs, challenges in the preparations, characterizations and low-cost industrial scalability remain. In this Review, we focus on the development of halide battery chemistry, the preparation, modification and properties of HSEs, and issues with HSEs in ASSBs. The chemical action of halogen and ion transport mechanisms are discussed. Moreover, the main challenges and future development directions of halide-based ASSBs are discussed to pave the way for practical applications of HSEs for next-generation rechargeable batteries.

使用固态电解质取代易燃液体电解质的全固态电池（ASSB）因其改进的固有安全性和能量密度而被认为是最有前途的下一代电化学储能装置之一。一系列含有卤素的固体电解质因其潜在的高离子电导率、良好的可变形性和宽的电化学窗口而引起了人们的关注。尽管ASSB中的含卤素固体电解质（HSE）已经取得了进展，但制备、表征和低成本工业可扩展性方面的挑战仍然存在。在这篇综述中，我们重点关注卤化物电池化学的发展、HSE 的制备、改性和性能，以及 ASSB 中 HSE 的问题。讨论了卤素的化学作用和离子传输机制。此外，还讨论了卤化物基ASSB的主要挑战和未来发展方向，为下一代可充电电池HSE的实际应用铺平道路。