Spinel nano-sized Li4Ti5O12 anode material of secondary lithium-ion battery has been successfully prepared by solid state reaction using axiolitic TiO2 assembled by 10-20 nm nanoparticles and Li2CO3 as precursors. The synthesis condition, grain size effect and corresponding electrochemical performance of the special Li 4Ti5O12 have been studied in comparison with those of the normal Li4Ti5O12 originated from commercial TiO2. We also propose the mechanism that using the nano-scaled TiO2 with special structure and unexcess Li 2CO3 as precursors can synthesize pure phase nano-sized Li4Ti5O12 at 8...
