Preparation of Nanotube TiOsub 2-Carbon Composite and Its Anode Performance in Lithium-Ion Batteries

A nanocomposite between carbon and nanotube TiO2 (CNTT) was prepared by addition of activated carbon during hydrothermal of TiO2 and following high-temperature calcinations. From morphological analysis using a scanning electron microscope, electron microscope, and N2 sorption profiles, it was revealed that nanotube TiO2 was homogeneously with carbon in nanoscale for CNTT materials. When applied into the anode in a lithium-ion battery, CNTT electrodes higher cyclability and better rate capability. From ac-impedance measurement, the total resistance was smaller in the electrode due to a homogeneously dispersed carbon in nanoscale and a more porous structure.