Zelleinheiten für Festoxidbrennstoffzellen und Energiegenerator, der diese Zelleinheiten verwendet

摘要

A cell unit for use in a solid oxide fuel cell has a laminate structure including a cell element (3,4,5) and a separator (1A).The cell element includes a dense and planar solid electrolyte (3) having a rectangular plane shape, and an air electrode film (4) and a fuel electrode film (5) provided on opposite surfaces of the flat solid electrolyte, respectively. The separator (1A) is made of a dense electron conductor. A plurality of oxidizing gas flow paths (8) are defined between the separator and the air electrode, and the cell element has a rectangular planar shape and a ratio of a short side to a long side of the rectangular planar shape is not less than 2.