Li4 Mn3 Fe1 P4 O16

Li₄Mn₃Fe₁P₄O₁₆ is a mixed-metal lithium phosphate compound belonging to the polyanion framework family of materials, studied primarily as a potential cathode material for lithium-ion battery systems. This composition combines manganese and iron redox centers within a rigid phosphate network, a design strategy intended to improve structural stability and electrochemical cycling performance compared to conventional oxide cathodes. The material remains largely in the research phase, with development focused on energy storage applications where high cycle life and thermal stability are critical.