Halide solid electrolyte, as a new family of solid electrolytes, has attracted much attention in recent years because of its easy preparation and high ionic conductivity at room temperature. However, most halides absorb moisture and suffer irreversible chemical degradation when exposed to humid air. This work uses F doping means to prepare Li₃InCl_5.8F_0.2 solid electrolyte. The contact angle and electrochemical performance tests were used to confirm that fluorine (F) doping can simultaneously improve the ionic conductivity and air stability of Li₃InCl₆. Meanwhile, the cracks on the surface of the material and the electronic conductivity can be reduced. Therefore, the obtained Li₃InCl_5.8F_0.2 solid electrolyte by F doping strategy shows significant potential in the all-solid-state lithium battery.

卤化物固体电解质作为一类新的固体电解质，由于其易于制备和室温下较高的离子电导率，近年来备受关注。然而，大多数卤化物在暴露于潮湿空气时会吸收水分并发生不可逆的化学降解。本工作采用F掺杂手段制备Li ₃ InCl _5.8 F _0.2固体电解质。通过接触角和电化学性能测试证实氟（F）掺杂可以同时提高Li ₃ InCl ₆的离子电导率和空气稳定性。同时，可以减少材料表面的裂纹和电子电导率。因此，通过F掺杂策略获得的Li ₃ InCl _5.8 F _0.2固体电解质在全固态锂电池中显示出巨大的潜力。