Sb-based nanostructured composite with embedded TiO_2 for Li-ion battery anodes

摘要

An Sb-based nanostructured composite with embedded TiO_2 was prepared from Sb_2O_3,Ti, and carbon powders using a mechanochemical reduction method and was evaluated as an anode material in rechargeable Li-ion batteries. X-ray diffraction, X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy analyses reveal that the Sb/TiO_2/C nanocomposite is composed of nanocrystaltine Sb, rutile-TiO_2, and amorphous carbon. Electrochemical tests show that the electrochemical performance of the Sb/TiO_2/C nanocomposite electrode is superior to that of the pure Sb electrode.