| 摘要 |
PURPOSE:To enlarge cells and improve performance at low cost by specifying a ratio of length of a long side to a short side in an anode and/or a cathode. CONSTITUTION:In this fuel cell, a stack is constituted by laminating plural cells having such a structure as forming rectangular anode 3 and cathode 2 upon each other through a solid electrolyte plate 1. At least one electrode among the rectangular anode 3 and cathode 2 is constituted so that a ratio of the size of a long side to the size of a short side becomes 1-1.2, and the electrolyte plate 1 is formed in a rectangular shape, and is constituted so that a ratio of the size of the long side to the size of the short side exceeds one. Thereby, when a fuel cell is manufactured, and when a temperature is lowered to a room temperature from a baking temperature, since camber of the cells is relieved, contact performance between an electrode and a separator is improved, and contact resistance is reduced, so that cell performance is improved. Since the short side of the electrolyte plate 1 is made to correspond to a blade direction of a coater, an electrode area can be enlarged without enlarging the coater or a kiln, so that cost can be reduced. |
