The kinetics of the electrochemical insertion of Li to form the bronze, LixV2O5 (where x ranged from 0 to 1), were studied by using current pulse relaxation in molten dimethylsulfone at 150C. The chemical diffusion coefficient of Li+ ions was found to be of the order of 10-9cm2/s, while the partial Li ion conductivity was of the order of 0.00001S/cm. Variations in the chemical diffusion coefficient, as a function of x, were correlated with the thermodynamic and structural properties of the bronze. As a result, it was suggested that 2 monophase regions existed for x-values of between 0 and 0.3 and between 0.4 and 1, while a 2-phase region existed for x-values of between 0.3 and 0.4.

J.P.Pereira-Ramos, R.Messina, J.Perichon: Solid State Ionics, 1990, 40-41, 974-7