SOLID OXIDE FUEL CELL STACK

• Main Authors: ANDO, SHIGERU, TANAKA, SHUHEI, HOSHIKO, TAKUYA, SATO, MASAKI, HAYAMA, KIYOSHI, KAKINUMA, YASUO, MOMIYAMA, YUTAKA, OKAMOTO, OSAMU, ISAKA, NOBUO, MURAKAMI, HIRONOBU, FURUYA, SEIKI, WATANABE, NAOKI
• Format: Patent
• Language: English; French; German
• Published: 06.04.2016
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

There is provided a solid oxide fuel cell stack including a ceramic interconnector that has an excellent electrical conductivity and a gas sealing property. The solid oxide fuel cell stack includes a support, a plurality of power generation elements, each of which including at least a fuel electrode, a solid electrolyte, and an air electrode stacked in that order on the surface of the support, and an interconnector that electrically connects an air electrode in one of the two adjacent power generation elements in the plurality of power generation elements to a fuel electrode in the other power generation element, the plurality of power generation elements being connected in series to each other, wherein a solid electrolyte for one of the power generation elements is provided on the downside of the interconnector provided on the downside of the air electrode in the one power generation element so that the solid electrolyte is joined to the interconnector, and a solid electrolyte for the other power generation element is provided on the upper side of the interconnector provided on the upper side of the fuel electrode for the other power generation element so that the solid electrolyte is joined to the interconnector.