Hollow Li1.2Mn0.54Ni0.13Co0.13O2 micro-spheres synthesized by a co-precipitation method as a high-performance cathode material for Li-ion batteries

Abstract

Hollow Li_1.2Mn_0.54Ni_0.13Co_0.13O₂ micro-spheres were successfully synthesized by a co-precipitation method. The micro-spheres deliver an initial discharge capacity of 296 mA h g⁻¹ and a coulombic efficiency of 83.4% at a current density of 30 mA g⁻¹. Furthermore, the micro-spheres exhibit an excellent rate capability (150 mA h g⁻¹ at a current density of 1500 mA g⁻¹) and a high reversible discharge capacity of 227 mA h g⁻¹ after 100 cycles at a current density of 60 mA g⁻¹.