Microsized TiO2 activated by high-energy ball milling as starting material for the preparation of Li4Ti5O12 anode material

The Li4Ti5O12 samples show good rate cyclability at 1C to 5C and complete capacity recovery to the initial value at the final 1C. The increase in the C rate results in a progressive increase in the capacity difference between samples LTO1 and LTO4. It is demonstrated that rate capability of Li4Ti5O12 is significantly determined by its particle size.