The total conductivity and the electronic conductivity of 45Li2O·50B2O3·5MmOn (M= Al, Ti, Zr, P, V, Nb, Ta, Cr, Mo, W) glasses are measured. The Raman spectra of the glasses are studied. The influence of MO2, M2O3 and MO3 oxides is discussed based on the pro-perties of the negatively charged groups acting as the localization sites for Li+ ions.