Interconnector material, intercellular separation structure, and solid electrolyte fuel cell
AssigneeMurata Manufacturing Co., Ltd.
InventorsKazuhide Takata, Michiaki Iha
Life of this patent
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Abstract
Provided is 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, does not contain 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. The interconnector is formed of a ceramic composition represented by the composition formula La(Fe1-xAlx)O3 in which 0<x<0.5.
Claims10
A cell structure comprising a plurality of cells which comprise
- an anode layer,
- a solid electrolyte layer,
- a cathode layer stacked sequentially, and
- an intercellular separation structure disposed between cells of the plurality of cells,
- the intercellular separation structure comprising an electrical insulator disposed to separate an anode gas and a cathode gas which are supplied to each of the plurality of cells and an electrical conductor in the electrical insulator electrically connecting the plurality of cells to each other,
- the electrical conductor comprising a first conductive body to an interconnector disposed to contact the anode layer, a second conductive body to an interconnector disposed to contact the cathode layer, and a third interconnector of dense material through which a gas does not a pass disposed to connect the first conductive body and second conductive body.
Dependencies are inferred from the claim text.