Li1.5Al0.5Zr1.5(PO4)3-coated Li1.2Mn0.54Ni0.13Co0.13O2 Cathode Materials with High Lithium-Ion Diffusion Rate and Long Cycling Stability for Lithium-Ion Batteries

Lithium rich-layered oxides have attracted widespread attention due to their high specific capacity and high energy density. However, severe lithium nickel mixing, poor lithium-ion migration rate, and surface side reactions greatly limit their development. Li1.2Mn0.54Ni0.13Co0.13O2 with different contents of Li1.5Al0.5Zr1.5(PO4)3 (LAZPO-LMNCO) is synthesized by wet chemistry and high-temperature solid-phase method. Fast lithium-ion conductor LAZPO coating effectively suppresses side reactions between the electrolyte and LMNCO surface and stabilizes the layered structure, which reduces lithium nickel mixing and increases the migration rate of lithium ions, thereby improving cycling stability. Lithium-ion diffusion coefficient of 3 wt