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US 4,070,529 AGranted
Solid electrolyte
AssigneeAgence Nationale de Valorisation de la Recherche (ANVAR)
InventorsClaude Delmas, Claude Fouassier, Paul Hagenmuller
Life of this patent
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Abstract
The invention relates to lamelliform oxides of high ionic conductivity which contain monovalent elements inserted between lamellae of oxides of the type (L.sub.x M.sub.1-x) O.sub.2 wherein L is a trivalent element, M is a tetravalent element and x is a number between 0 and 1. Such oxides are useful as solid electrolytes in electrochemical generators or cells.
Claims9
Lamelliform oxides characterised by the fact that they contain monovalent elements inserted between lamellae of the formula I
- (l.sub.y M.sub.1-y)O.sub.2 (I)
- wherein each of the two elements L and M is present in the said lamellae in only one degree of oxidation, the degree of oxidation of L being lower by at least one unit than that of M, the said elements being selected from compounds which either have only one degree of oxidation or have one degree of oxidation which is very stable in the presence of others if more than one exists, y being a number of between 0 and 1.
Dependencies are inferred from the claim text.