Patent ID: 9368774
Filing Date: 2016-06-14
CPC Classification: H01M,Y02E

Claim Text:
1. An electrolyte separator structure comprising: a graded integral structure, wherein the graded integral structure comprises a monolithic structure comprising an ion-conducting first ceramic at a first end and an electrically insulating second ceramic at a second end; wherein the electrically insulating second ceramic comprises one or more of alpha-alumina, yttria, yttria stabilized zirconia, yttrium aluminum garnet, magnesia alumina spinel, and yttrium aluminate perovskite; wherein the difference in the coefficient of thermal expansion of the ion-conducting first ceramic and the electrically insulating second ceramic is less than or equal to about 5 parts per million per degrees Centigrade; and wherein at least one of the first ceramic or the second ceramic comprises a strengthening agent that comprises an oxide, a nitride, or a carbide of at least one element selected from the group consisting of group IIIA elements, group IIIB elements, group IVB elements, and group IVB elements.