Synthesis and electrochemical characteristics of Li₄Ti ₅O₁₂ nanofibers by hydrothermal method

In this paper the effect of the structure, particle size, morphology of nanofibers and nanoparticles for the electrochemical characteristics of Li ₄Ti₅O₁₂ was investigated. The H ₂Ti₂O₅ · H₂O synthesized in hydrothermal treatment from a NaOH treatment on TiO₂ by ion exchange processing with HCl solutions. After the Li₄Ti₅O ₁₂ nanofibers synthesized in hydrothermal treatment of H ₂Ti₂O₅·H₂O and LiOH·H₂O. The hydrogen titanate precursor prepared by ion exchange processing with 0.1-0.3M HCl solutions and the final products calcined at 350°C-400°C. The Li₄Ti₅O₁₂ nanofibers showed well reversibility during the insertion and extraction of Li, good cycle performance, high capacity and low electrochemical reaction resistance than nanoparticles. also c-rate exhibited a discharge capacity of 172mAh/g at 0.2C and H5mAh/g at 5C, which is the 77%, 67% ofthat obtained in the process charged, discharged at 0.2C.