The diffusivity of 6Li was determined by using the capillary reservoir technique. It was found that the results could be described by:

D (m2/s) = 1.12 x 10-6 exp[-38.9(kJ/mol)/RT]

The activation energy for Li diffusion was much lower than that for F, and was slightly higher than that for electrical conduction.

N.Iwamoto, Y.Tsunawaki, N.Umesaki, H.Ohno, K.Furukawa: Faraday Transactions - II, 1979, 75[9], 1277-83