Na6 Li2 P4 O14

Na₆Li₂P₄O₁₄ is a mixed sodium-lithium polyphosphate ceramic compound belonging to the family of inorganic phosphate ceramics. This material is primarily of research interest for solid-state electrolyte and ion-conductor applications, where the combination of alkali metal cations creates a framework suitable for fast ionic transport at moderate to elevated temperatures. Industrial adoption remains limited, but compounds in this material family are investigated for all-solid-state battery systems, thermal insulation coatings, and specialized optical or thermal management applications where conventional ceramics or polymers are insufficient.