NaVO2F

NaVO₂F is a sodium vanadium oxyfluoride ceramic compound belonging to the vanadium oxide family, characterized by mixed-valence vanadium cations and fluoride anion incorporation into its crystal structure. This material is primarily investigated in research contexts for energy storage applications, particularly as a cathode material in sodium-ion batteries and fluoride-ion batteries, where the combination of vanadium's multiple oxidation states and fluoride's electrochemical activity offers potential for high energy density and improved ionic conductivity. Compared to conventional lithium-ion cathodes, vanadium fluoride compounds are notable for enabling sodium-based battery chemistries that use more abundant elements, though the material remains largely in the development phase rather than in widespread commercial production.