An oxygen deficient Li4Ti5O12 was investigated for lithium ion batteries (LIBs) in this work. Compared with nitrogen doping and pristine Li4Ti5O12, the oxygen deficient Li4Ti5O12 exhibits significant improvement of electrochemical performance, it could deliver a specific capacity of 75 mAh/g even at a high charge/discharge rate of 10C and exhibit excellent cycling performance. The results revealed in this work show that oxygen deficient control can be a promising way to improve high rate performance of the LIBs electrode materials.
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