The enhancement of conductivity which occurred upon dispersing SbF5 was confirmed. Theoretical estimations of the enhanced composite conductivity, based upon space-charge formation and interfacial acid-base interactions, indicated a lower conductivity than was observed. It was concluded that the enhancement involved chemical and structural contributions which arose from dispersed solid super-acid particles. Such contributions included changes in density, the crystal structure of the matrix, the grain size and an induced dislocation density. These factors were also expected to result in the formation of ionic defects; thus leading to an increase in conductivity.

Y.Saito, O.Nakamura, Y.Yamamoto: Journal of Materials Science, 1996, 31[9], 2345-8