The cell performance and the reaction mechanism of the Li/1 M LiClO4 propylene carbonate/TiO2 cell, which has an open circuit voltage of 2.85-2.90 V and 950 Wh/kg of theoretical energy density, are presented. The open circuit voltage and the working voltage exceeded the theoretical open circuit voltage (1.1 V) predicted from thermodynamic data assuming 1 electron transfer per molecule of TiO2 and the products to be Ti2O3 and Li2O. The working voltage of Li/anatase TiO2 cell is higher than that of Li/rutile TiO2 cell. The reaction mechanism has been shown by the electrochemical and X-ray diffractional examination to be {A figure is presented} The self-discharge test was also done and proved the capacity loss to be negligible during a month of storage. storage. © 1979.
