Synthesis and electrochemical performance of Mo-doped LiNi0.5Mn1.5O4 cathode material

Abstract

ABSTRACT The Mo-doped LiNi0.5Mn1.5O4 material has been successfully synthesized by the freezing precipitation method, and the effect of different doping amounts on the properties of LiNi0.5Mn1.5O4 material has been studied. Texting has included XRD, SEM, first charge and discharge curves, cycle performance, rate cycle, CV analysis, and EIS analysis. The experimental results show that the Mo-doping material shows superior performance when the doping amount is 1%, and this amount ensures the highest capacity of the sample. The capacity is 120.1 mAh g−1 at 0.1 C (initial discharge), with which the particle size and the dispersion are uniform. After 50 cycles, the discharge capacity is 118.3 mAh g−1 at 0.1 C, and the capacity retention rate is 98.5%. These results reveal that Mo-doped LiNi0.5Mn1.5O4 contributes to the outstanding electrochemical performance of the LiNi0.5Mn1.5O4.