Lithium-Sodium Beta Alumina: First of a Family of Co-ionic Conductors?

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Science  17 Jun 1977:
Vol. 196, Issue 4296, pp. 1332-1334
DOI: 10.1126/science.196.4296.1332


Lithium-sodium beta alumina having a lithium/sodium ratio greater than about I appears to be the first generally useful lithium superionic conductor that has been reported. It exhibits strikingly nonlinear ion exchange properties and may presage the discovery of similar co-ionic interactions in other superionic conductors. The properties of lithium-sodium beta alumina are discussed in relation to current concepts of ionic interaction and distribution in the beta alumina conduction plane.