Abstract:
In order to solve the problem of severe capacity fading for the anode of spinel LiMn2O4 battery at high temperature,NiO was coated on LiMn2O4 powders surface by a simple method,and the structure,morphology of the LiMn2O4 without and with coating and the electrochemical performance of the anode material were studied.The results show that,the structure of the LiMn2O4 particles with NiO coating had no changes,and its surface exhibided stalactite-like protrusions.Compared with the LiMn2O4 anode material without NiO coating,the cycling ability and rate capability of the anode material with NiO coating increased by 8.79% and 14.04%.