FREE-STANDING MEMBRANE ELECTROLYTE ELECTRODE ASSEMBLY

摘要

A free-standing membrane electrolyte electrode assembly (ESC) (10) comprises an eletrolyte (12), an anode electrode (14) formed at one end face of the eletrolyte (12), and a cathode electrode (16) formed at the other. The electrolyte (12) is a single crystal having a surface along which oxide ions move or a direction in which the ions move or a polycrystal oriented along a surface along which oxide ions move or in a direction in which the ions move. The surface or the direction is parallel to the thickness direction. The thickness of the electrolyte (12) is 50 to 800 µm, and the quotient of the division of the total thickness of the anode electrode (14) and the cathode electrode (16) by the thickness of the electrolyte (12) is 0.1 or less. The thickness of the ESC (10) is 1 mm or less.