INTERCONNECTOR MATERIAL, INTERCELLULAR SEPARATION STRUCTURE, AND SOLID ELECTROLYTE FUEL CELL

An object of the present invention is to provide an interconnector material which is chemically stable in both oxidation atmospheres and reduction atmospheres, has a high electron conductivity (electric conductivity), a low ionic conductivity, and a composition not containing Cr, and enables a reduction in sintering temperature. The interconnector material is arranged between a plurality of cells each composed of an anode layer, a solid electrolyte layer, and a cathode layer stacked sequentially, and electrically connects the plurality of cells to each other in series in a solid electrolyte fuel cell, wherein a dominant component of the material is a ceramic composition represented by the composition formula La(FeAl)Oin which x represents a molar ratio satisfying 0 < x < 0.5.