Ionic transports and optical spectra of 50Li2O-50B2O3 glass

► The repetitive charge and discharge process is confirmed by TRCS. ► The model and the equations are consistent with the experimental results. ► The charge typesparticipated in polarization is confirmed by the kink phenomena. ► The fractal dimensionality is evaluated at threedimensional characters. ► The optical indexes are obtained from the Kramers-Krong analysis.