Li4 Cu2 Ni2 P4 O16

Li₄Cu₂Ni₂P₄O₁₆ is a mixed-metal lithium phosphate ceramic compound combining transition metals (copper and nickel) in a phosphate framework, positioning it as an experimental semiconductor material within the lithium phosphate family. This composition is primarily of research interest for energy storage and electrochemical applications, particularly as a potential cathode material or solid electrolyte component in lithium-ion batteries, where the mixed transition metal coordination may offer tunable electronic properties and ionic conductivity. While not yet commercialized at scale, this material class represents an emerging strategy for improving battery performance and cycling stability through ceramic-based ion conductors.