| 摘要 |
PURPOSE:To improve the performance of a stack with the sealing property of a battery increased to prevent leakage and mixture of a gas by inserting a conductive cushion member in between a fuel electrode and a separator facing against it. CONSTITUTION:A fuel gas and an oxidizer gas are allowed to flow orthogonally with one another. For that reason, Grooves 6 for passage of a gas are formed orthogonally with one another on both side faces of separators 1, 1 facing against a fuel electrode 3 and an air electrode 4, respectively. And junction faces 1a, 1b of the separators 1 facing against with one another are formed in a gently curved surface and the curved surface 1a of an upper separator 1 is shaped in a convex form and the curve surface 1b of a lower separator 1 is shaped in a concave form. Accordingly, the exposed part 2a of a solid electrolyte layer 2 is held in warping under pressure between the curved surfaces 1a, 1b. And a conductive cushion member 5 is inserted into a fuel gas chamber formed between the fuel electrode 3 and the separator 1 of a unit cell. The cushion member 5 is, for instance, formed by making a thin metal strip like a sponge. |
