Li4 Cu4 F10

Li₄Cu₄F₁₀ is an experimental lithium copper fluoride compound belonging to the mixed-metal fluoride family, which has attracted research interest as a potential solid-state electrolyte or ion-conducting ceramic material. This compound and related lithium fluorides are under investigation for next-generation battery systems where high ionic conductivity and electrochemical stability are critical, though it remains largely in the research phase without widespread commercial deployment. The material represents an emerging class of alternative electrolytes for solid-state lithium batteries and related electrochemical devices where conventional liquid electrolytes present safety or performance limitations.