| 摘要 |
Provided is a solid oxide fuel cell unit comprising an insulating support, and a power generation element comprising, at least, a fuel electrode, an electrolyte and an air electrode, which are sequentially laminated one another, the power generation element being provided on the insulating support, wherein an exposed insulating support portion, an exposed fuel electrode portion, and an exposed electrolyte portion are provided in an fuel electrode cell end portion. |
| 主权项 |
1. A solid oxide fuel cell unit comprising:
an insulating support having a gas flow path running therein; and a first power generation element provided on a surface of the insulating support in a first end of the insulating support, wherein the first power generation element comprises a fuel electrode, an electrolyte and an air electrode, the fuel electrode, the electrolyte and the air electrode being sequentially laminated one over another in this order from inner most to outer most, the fuel electrode including a first surface and a second surface, the first surface being located between the fuel electrode and the electrolyte, the second surface being located between the fuel electrode and the insulating support, the insulating support being made of a porous material comprising an oxide, and the electrolyte being made of an oxide having a smaller coefficient of thermal expansion than a coefficient of thermal expansion of the insulating support, the solid oxide fuel cell unit further comprises an exposed electrolyte portion, which is a portion of the electrolyte exposed, uncovered by the air electrode, an exposed fuel electrode portion, which is a portion of the fuel electrode exposed on the first surface, uncovered by either the electrolyte or the air electrode, and an exposed insulating support portion, which is a portion of the insulating support located in the first end thereof that is exposed, uncovered by any of the fuel electrode, the electrolyte and the air electrode, and the exposed insulating support portion, the exposed fuel electrode portion, and the exposed electrolyte portion are arranged one next to another in this order along the gas flow path from the first end of the insulating support. |
