Sintered beta-alumina article permeable to sodium and potassium ions and methods for producing same

摘要

A beta-alumina polycrystal article permeable to sodium and potassium ions made by sintering beta -alumina and tantalum. The article evidences high corrosion resistance against sodium, potassium and their ions, and is especially useful as a solid electrolyte for a sodium-sulfur battery because of its excellent durability.