Alkali selenogermanate glasses

摘要

Selenogermanate, selenogallo- or selenoindo-germanate glasses that are modified by alkali metals, for example, Na or Li and, as such, are characterized by high alkali ion mobility or conductivity. Ionic conducting chalcogenide glasses have potential application as an electrolyte medium for solid state batteries.

主权项

1. A glass composition comprising in mole percent:
45 to 99 percent GeX2; 0 to 50 percent Ga2X3, In2X3, or a combination thereof; and 0.5 to 50 percent M2X, wherein M is an alkali metal, wherein X is Se, and optionally S, Te or a combination thereof, wherein at least 50 mole percent of the total X is Se, and wherein the X content is in the range of from 70 to 130% of the stoichiometric amount.