Porous TiO2 (anatase) Electrodes for High-Power Batteries

Abstract
Porous TiO2 (anatase) with bimodal pores (50 and 430 nm) and monomodal pores (50 nm) was synthesized by using colloidal crystals as templates. Electrochemical capacity of lithium insertion/extraction to the bimodal porous TiO2 was as large as 66.1 mAh·g−1 at the current density of 3.7 A·g−1, which was higher than those of nanoparticulate TiO2 and porous TiO2 prepared by using 50 nm PS colloid.