Electrochemical Performance of Iron-doped Li1.2Mn0.6Ni0.2O2 Cathode Materials Prepared by Combustion Synthesis

摘要

Li-rich manganese cathode materials have increasingly at- tracted much attention because of their high specific capacities applied in Li-ion batteries. However, they have suffered from low coulombic efficiency and poor rate capability. In this study, we utilize Fe ion doping and control grain morphology to improve the electrochemical performance of Li1.2Mn0.6Ni0.2O2. Fe-doped Li1.2Mn0.6Ni0.2O2 powders were successfully prepared via combustion synthesis, with equiaxed appearance and submicron size.