Li2 Fe2 P2 O8

Li₂Fe₂P₂O₈ is an iron-phosphate-based lithium compound belonging to the family of polyphosphate ceramics and semiconductors. This material is primarily of research interest for energy storage and electrochemical applications, where iron phosphates are explored as potential cathode materials and solid electrolytes in next-generation lithium-ion and solid-state battery systems. It represents an emerging material class valued for its potential to offer cost advantages and improved thermal stability compared to conventional layered oxide cathodes, though it remains largely in development rather than established mass production.