ABSTRACT A formidable challenge in developing high‐energy‐density lithium‐ion batteries for electric vehicles and aviation lies in enabling ultra‐fast charging and wide‐temperature operation, originating from trade‐offs in electrolyte design. The electrolyte must reconcile high ionic conductivity, minimal desolvation penalties, and low melting points, while deriving a robust, anion‐rich inorganic interphase to guarantee superior interfacial kinetics and thermal safety. Herein, this work surpasse