Patent 7531261 was granted and assigned to Corning Incorporated on May, 2009 by the United States Patent and Trademark Office.
An electrolyte sheet comprises a body of a varied thickness. The electrolyte sheet has at least one non-porous surface. This non-porous surface is a textured surface with multiple indentations therein. The thickest part of the electrolyte sheet is at least 0.5 micrometers greater than the thinnest part of the sheet.