EN
This study examined the formation mechanism of Li_4Ti_5O_{12} by a ball mill assisted solid-state reaction between Li_2CO_3 and TiO_2 for applications in lithium ion batteries, also effects of TiO_2 source such as rutile type and anatase type on the electrochemical performance of Li_{4}Ti_5O_{12}. However, it is believed that the particle properties may depend significantly on the synthesis process and starting materials, which lead to final products with a range of sizes, morphologies, and even phases.