Toto Ltd.

Yasuo Kakinuma

Shigeru Ando

Naoki Watanabe

Yutaka Momiyama

Nobuo Isaka

Osamu Okamoto

Masaki Sato

Seiki Furuya

Kiyoshi Hayama

Shuhei Tanaka

Takuya Hoshiko

Akira Kawakami

Shuichiro Saigan

Takuya Matsuo

Yousuke Akagi

Koji Omoshiki

Yuya Takahashi

Hironobu Murakami

Hiroshi Shirahama

Megumi Shimazu

Chihiro Kobayashi

Akira Ishiguro

Mitsunobu Shiono

Masato Ota

Masayuki Yamada

Riku Takeshita

A fuel cell array comprises a plurality of serially connected fuel cell units. A respective fuel cell unit comprises a fuel cell and a cap capped on each end of the fuel cell. The fuel cell unit further comprises an electrically conductive terminal layer forming an outermost laminate of the fuel cell at one end of the fuel cell. The terminal layer is directly laminated on a fuel electrode layer and directly laminated on a solid electrolyte layer. The fuel cell unit further comprises a glass material forming a sealing layer circumferentially around the fuel cell to fill between the inner surface of the cap and the outer surface of the fuel cell. The plurality of fuel cell units are electrically connected in series through the electrically conductive terminal layer, not through the cap.

Fuel cell unit and fuel cell array

To provide SOFC and method for manufacturing same, capable of preventing breakage of fuel cell electrodes, and of securing an electrical connection between fuel cells and a current collector. SOFCcomprising a cell array composed of fuel cells, and current collectorconnected to electrodes formed on fuel cells, wherein current collectoris a metal plate on which attaching holesare formed; elastic piecesare provided on each attaching hole; current collectoris attached to the cell array using elastic pieces, by the insertion of fuel cellinto attaching holes; and elastic piecesare affixed to fuel cellsby electrode protective layerso that the positions of elastic piecesare not displaced relative to the electrodes on fuel cells

Solid oxide fuel cell device and method for manufacturing same

A solid oxide fuel cell stack includes a support, a plurality of power generation elements provided on a surface of the support, the plurality of power generation elements connected in series, each including at least a fuel electrode, a solid electrolyte, and an air electrode stacked in that order, and an interconnector that electrically connects an air electrode in one of adjacent power generation elements to a fuel electrode in the other power generation element. A solid electrolyte in adjacent one power generation element is provided between a fuel electrode in the adjacent one power generation element and the fuel electrode in the adjacent other power generation element, and an insulating member is provided at a position that is on the solid electrolyte in the adjacent one power generation element and between the air electrode in the adjacent one power generation element and the solid electrolyte therein.

Solid oxide fuel cell stack

To provide a method for manufacturing SOFC, capable of preventing breakage of fuel cell electrodes, and of securing an electrical connection between fuel cells and a current collector. Step for forming electrode protective layerson electrodes formed on fuel cells, modularization step for forming a cell array, and attaching step for attaching a current collectorto the cell array, wherein current collectoris a metal plate on which attaching holesare formed for the insertion of fuel cells, elastic piecesare formed at each attaching hole, fuel cellsare inserted into attaching holes, and current collectoris attached to the cell array by the elastic force; and protective layeris constituted to prevent damage to electrodes caused by contact with elastic pieces.

Method for manufacturing a solid oxide fuel cell device

A solid oxide fuel cell stack includes a support, a plurality of power generation elements connected in series, each including a fuel electrode, a solid electrolyte, and an air electrode stacked in that order on the support, and an interconnector electrically connecting an air electrode in one of the two adjacent power generation elements to a fuel electrode in the other power generation element. 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.

Provided is a solid oxide fuel cell unit comprising an insulating support, and a power generation element comprising, at least, a fuel electrode, an electrolyte and an air electrode, which are sequentially laminated one another, the power generation element being provided on the insulating support, wherein an exposed insulating support portion, an exposed fuel electrode portion, and an exposed electrolyte portion are provided in an fuel electrode cell end portion.

Solid oxide fuel cell unit

Provided is a solid oxide fuel cell which includes a fuel electrode, a solid electrolyte, and an air electrode, each being sequentially laminated on the surface of a porous support. The porous support comprises forsterite and a nickel element. Ni and/or NiO fine particles are exposed on a surface of a sintered compact of the forsterite constituting the porous support.

Solid oxide fuel cell and method for producing the same

Disclosed is a solid oxide fuel cell which includes an inner electrode, a solid electrolyte, and an outer electrode, each being sequentially laminated on the surface of a porous support. The porous support contains forsterite, and further has a strontium element concentration of 0.02 mass % to 1 mass % both inclusive in terms of SrO based on the mass of the forsterite.

A solid oxide fuel cell scatters MgO over a grain boundary of an LSGM which is a solid electrolyte layer. Ni components that diffuse from a fuel electrode formed on the other side of an LDC from the LSGM are trapped by the scattered MgO particles and are suppressed from diffusing towards an air electrode in the electrolyte layer.

Solid oxide fuel cell

In a fuel cell unitthat constitutes a fuel cell moduleof an SOFC device, a collector capis connected to an inner electrode layervia a seal materialas an Ag seal portion. A glass coating(dense body) is filled up between the inner electrode layerand an electrolyte layerand the collector capto cover an upper end surfaceof the seal material. As such, the fuel cell unitincludes the seal materialconstituting as an Ag seal portion that separates a fuel gas from an oxidant gas, and a glass coatingat least partially formed to over at least either the fuel gas side surface of the seal materialor an the oxidant gas side surface of the seal material

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Chigasaki, Japan

Yasuo Kakinuma