| 简介 |
PROBLEM TO BE SOLVED : To provide a "segmented-in-series" fuel cell structure that has a support substrate with resistance to deformation when subjected to external force, the fuel cell structure preventing cracking or detachment of a fuel electrode.SOLUTION : A flat substrate 10 has fuel gas channels 11 formed therein, and has a longitudinal direction. On each of an upper surface and a lower surface of the flat substrate 10, a plurality of power generating element sections A that are electrically connected in series are arranged at predetermined intervals in the longitudinal direction. On each of the upper and lower surfaces of the flat substrate 10, a plurality of depressions 12 are formed at predetermined intervals in the longitudinal direction. Each of the depressions 12 is a cuboid recess defined by four side walls that are circumferentially closed, and a bottom wall. In each depression 12, a fuel electrode 20 of the corresponding power generating element section A is buried. Each fuel electrode 20 includes : Ni or Ni oxide; and a rare-earth element oxide or an oxide that is expressed by the chemical formula AEZrO(where AE represents one element, or two or more elements, selected from the group consisting of Ca, Sr, Mg, and Ba). |
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