Li4 Fe2 B2 P2 O14

Li₄Fe₂B₂P₂O₁₄ is an inorganic lithium iron borate phosphate compound belonging to the mixed-anion ceramic oxide family, combining borophosphate chemistry with iron-based redox activity. This material is primarily of research interest for energy storage and electrochemical applications, particularly as a potential cathode material or electrolyte component in lithium-ion batteries, where the synergy between iron redox centers and the borophosphate framework may enable novel ionic conduction or charge-storage mechanisms. Compared to conventional lithium iron phosphates (LFP), the addition of borate functionality represents an emerging approach to enhance electrochemical performance or thermal stability, though this compound remains in the development stage rather than established in high-volume commercial production.