Is it Possible to Make Materials with Ionic Superconductivity?

We try to find some materials in which bosonic ions with sufficiently small effective mass are used as charge carriers instead of Cooper's pairs in order to provide high temperature ionic superconductivity. Among single-charged ions comprising ionic crystals only lithium isotope Li⁶ can be used for that purpose. The results show that Bose-condensation temperature for Li⁶-ions is of the order of 10^-34-10^-43K in all crystals. If, however, the crystal is compressed by 20-22%, it can rise the Bose- condensation temperature in all crystals considered to above room temperature.