Preparation of Nanotube TiO[sub 2]-Carbon Composite and Its Anode Performance in Lithium-Ion Batteries

Abstract

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