TiO₂ Nanoflakes as Anode Material for Lithium Ion Batteries

Abstract

The mesoporous TiO2 nanoflakes have been prepared by the hydrothermal method, which is using Ti(SO4)2 as the titanium raw and KOH solution as alkaline medium. The TiO2 nanoflakes have been characterizated by transmission electron microscopy, X-ray powder diffraction, N2 adsorption–desorption analysis, cyclic voltammetry, and cycle performance test. Electrochemical performance test shows that mesoporous TiO2 nanoflakes have high discharge specific capacity and good cycle performance. Discharge specific capacity for the first time is in 0.2 C ratio of 278.1 mAh g−1. After 90 cycles, the discharge capacity reduces to 97.6% of the theoretical specific capacity.