Patent ID: 7838166

Claim:
A method of manufacturing a solid oxide fuel cell module made up of a plurality of cells provided adjacent to one another and electrically connected in series by an interconnector provided therebetween, each cell comprising a fuel electrode, an electrolyte and an air electrode sequentially formed on a surface of a substrate having an internal fuel flow path provided therein, at least the surface of the substrate in contact with the cells and interconnectors being electrically insulating, said method comprising the steps of: providing respective fuel electrodes and respective electrolytes on the surface of the substrate; co-sintering the respective fuel electrodes and respective electrolytes; providing a respective first part of the respective interconnectors having a density that is not less than 90% of the theoretical density of the interconnector material or that will have a density of not less than 90% of the theoretical density of the interconnector material after sintering in contact with the respective fuel electrodes and the respective electrolytes; forming respective air electrodes on the respective electrolytes; and electrically connecting the respective electrodes with the respective first parts of the respective interconnectors via respective second parts of the interconnectors which have a density less than the respective first parts.