Sodium Ion Conducting Glasses for the Sodium‐Sulfur Battery

Abstract

Composition and properties of sodium borate, aluminoborate, and aluminoborosilicate glasses are described. Electrolyte glass degradation by battery environment and chemicals and problems of thermal instability of some glasses are discussed and interpreted on the basis of glass chemistry and structure. A relationship between sodium ion conductivity and composition of the present glasses is established. Constraints on electrolyte glass composition based on its physical and electrical behavior and corrosion stability are tentatively defined, and options allowing various trade-offs between these properties are discussed. © 1985, The Electrochemical Society, Inc. All rights reserved.