Mesoporous materials of anatase-TiO2 with different surface area and mesopore size were successfully synthesized by bicontinuous microemulsion-aided processes. The electrochemical lithium-intercalation into the mesoporous anatase-TiO2 was dependent on the surface area, crystallite size and mesopore size. The increase in surface area of mesoporous TiO2 resulted in an increase in the lithium-intercalation capacity. A mesoporous TiO2 with large mesopore size showed a relatively large lithium-intercalation capacity even at high charging rate. (c) 2005 Elsevier B.V. All rights reserved.