Due to the instability of cobalt price,cobalt-free Ni-rich LiNi0.9Mn0.1O2 is considered as a potential cathode material in the future,but the problems of weak rate capability and short cycle life hinder its commercialization.In this study,the cobalt-free nickel-rich LiNi0.9Mn0.1O2 cathode material was modified by doping with Mo element,which could delay the harmful phase transition of the material during the charging stage,thereby improving the rate performance and cycle stability of the material.At a rate of 1C,it had a capacity retention rate of 73.3% after 500 cycles,and even at a high rate of 10C,it still had a high discharge capacity of 152.05mAh·g-1.This study provided new options for lithium-ion cathode materials for electric vehicles.
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