The composite material of amorphous titanium oxide and acetylene black (AB) was fabricated by hydrolyzing titaniumisopropoxide in the propanol in which acetylene black was dispersed. The composite material was tested electrochemically. Cyclic voltammetry showed that the amount of reversibly reacted lithium was about x=0.6 in terms of Li x TiO2. The composite could be discharged and charged under constant current densities around 2.0V versus Li/Li+. For current densities of 0.1, 1, and 10Ag−1, the specific capacities measured were 185, 145, and 120mAg−1, respectively. On the basis of the use of the composite material as an anode, the feasibility of energy devices possessing both high-energy and high-power densities in a lithium battery type is discussed.