ELECTROLYTE SHEET FOR SOLID OXIDE FUEL CELL, UNIT CELL FOR SOLID OXIDE FUEL CELL AND SOLID OXIDE FUEL CELL EQUIPPED WITH SAME, METHOD FOR TESTING ELECTROLYTE SHEET FOR SOLID OXIDE FUEL CELL, AND METHOD FOR MANUFACTURING ELECTROLYTE SHEET FOR SOLID OXIDE FUEL CELL

摘要

In an electrolyte sheet for a solid oxide fuel cell according to the present invention, the number of flaws on at least one of surfaces of the sheet detected by a fluorescent penetrant inspection is 30 points or less in each of sections obtained by dividing the sheet into the sections each measuring 30 mm or less on a side. A unit cell for a solid oxide fuel cell according to the present invention comprises a fuel electrode, an air electrode, and the electrolyte sheet for a solid oxide fuel cell according to the present invention, which is disposed between the fuel electrode and the air electrode. A solid oxide fuel cell of the present invention includes the unit cell for a solid oxide fuel cell according to the present invention.