Li3V4O3F9

Li₃V₄O₃F₉ is an inorganic ceramic compound combining lithium, vanadium, oxygen, and fluorine—a mixed-valence vanadium oxide fluoride with potential as an advanced functional material. This compound is primarily of research interest as a candidate cathode or ion-conductor material for next-generation lithium-ion and solid-state battery systems, where the fluorine substitution and vanadium redox chemistry can enhance electrochemical performance. Unlike conventional layered oxide cathodes, vanadium fluorides offer the potential for higher energy density and improved ionic conductivity in solid electrolyte applications, though it remains largely in the development stage rather than high-volume production.