| 摘要 |
This invention provides a fuel battery unit cell, which can realize a size reduction and a cost reduction, a fuel battery unit cell array, a fuel battery module, and a fuel battery system. The fuel battery unit cell has a pin structure comprising a fuel electrode (11) formed of a p-type semiconductor, an oxygen electrode (13) formed of an n-type semiconductor, and an intermediate layer (12) interposed between the fuel electrode (11) and the oxygen electrode (13) and formed of an authentic semiconductor. The fuel electrode (11) and the oxygen electrode (13) are porous and permeable to a fluid. A metal-base catalyst layer is provided on the inner surface of pores in the porous part. The intermediate layer (12) is porous and permeable to a hydrogen ion produced in the fuel electrode (11) and is impermeable to electrons. A hydrogen-containing fuel is supplied on the surface of the fuel electrode (11), and an oxygen-containing oxidizing fluid is supplied on the surface of the oxygen electrode (13). Connecting terminals electrically connected respectively to the fuel electrode (11) and the oxygen electrode (13) are provided. |
