Activation of Solid and Molten Electrolytes and their Relaxation

Abstract

On exposure of high-voltage microsecond pulsed fields, the molten and solid electrolytes are transited into a prolonged non-equilibrium state with increased electrical conductivity and disappeared characteristic peaks in Raman spectra. During the multistep relaxation of non-equilibrium electrolytes the initial conductivity and Raman spectra are restored to the values and patterns characteristic for equilibrium system.

Structural Relaxation in the Activated Molten Chloride Electrolytes of Polyvalent Metals

“…The activation degree of conductivity also rises with increasing number of pulses and their voltage amplitude, and tends to the saturation. In Figure 7, as examples, these dependences are presented for a magnesium electrolyte Similar results were obtained for other compositions of molten mixtures [7][8][9][10][11][12][13][14][15]. The results obtained in Sections 3.1 and 3.3 are collected in Table 1.…”

“…After completion of high-voltage pulsed discharges in molten electrolytes, their low-voltage conductivity (measured by a conventional AC bridge) turns out to be increased, the electrochemical potentials of the metals turn out to be more positive [6,7], while the characteristic peaks of Raman spectra almost disappear [8], i.e., the "memory" effect is observed in them, which is expressed as "activation» of the melts. These observations were interpreted as a consequence of the stimulated dissociation of complex formations into simpler and elementary ions.…”