Fluorinated solid‐state electrolytes (FSSEs) exhibit good compatibility with positive materials, wide electrochemical windows, and stable chemical stability, which have been widely used in all‐solid‐state lithium batteries (ASSLBs). However, the practical application of fluorinated solid electrolytes still faces great challenges due to factors such as ionic conductivity, chemical stability, and current limitation. Herein, the development history of FSSEs is reviewed first. Subsequently, the recent advances in the improvement of ion conductivity, chemical stability, and current limit by structural design, interface regulation strategies, etc. are analyzed. Finally, the design requirements for future generations of FSSEs are prospected, focusing on the latest simple one‐step synthesis methods, improving the ionic conductivity at room temperature, and optimizing the electrochemical stability window of FSSEs.
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