Densification of ceria based electrolytes

Details Densification of ceria based electrolytes Densification of ceria based electrolytes

C - Chemistry, Metallurgy

04

B

C04B 35/50 (2006.01) H01M 8/12 (2006.01)

Patent

CA 2521901

The fabrication of ceria based electrolytes to densities greater than 97 % of the theoretical achievable density at temperatures below 1200 ~C, preferably approximately 1000 ~C, is disclosed. The electrolyte has a concentration of divalent cations minus an adjusted concentration of trivalent cations of between 0.01 mole % and 0.1 mole %.

La présente invention a trait à la fabrication d'électrolytes à base d'oxydes de cérium à des densités supérieures à 97 % de la densité théoriquement réalisable à des températures inférieures à 1200 ·C, de préférence d'environ 1000 ·C. L'électrolyte présente une concentration de cations divalents moins une concentration réglée de cations trivalents comprise entre 0,01 en pourcentage molaire et 0,1 en pourcentage molaire et.

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