The self-diffusion coefficient of Li+ was determined, at temperatures ranging from 650 to 800C, by means of ion-microprobe analysis. The results could be described by:

6Li:     D (cm2/s) = 90.9 exp[-2.13(eV)/kT]

7Li:     D (cm2/s) = 85.7 exp[-2.13(eV)/kT]

J.N.Coles, J.V.P.Long: Philosophical Magazine, 1974, 29[3], 457-77