Beta-alumina solid electrolyte parameters in as-fabricated condition and after tests in Na-Na cells

Results on a complex study of physical, structural and strength parameters of a solid electrolyte made of sodium polyaluminate plasmochemically processed powders, in as fabricated condition and after electrical tests in Na-Na cells, are represented. The electrolyte material was examined using an X-ray microsounding method, scanning electron microscopy, and impedance measurement of local ionic conductivity. A suggested methodological approach allows studying changes in the electrolyte properties after lifetime tests, specifically, those connected with wetting the electrolyte and removing impurity nonconducting films from its surface, as well as with sodium deposition on microdefects leading to dendrite formation