A cell stack device includes a plurality of electrochemical cells, a manifold, a gas supply portion, and a gas collection portion. The manifold includes a gas supply chamber and a gas collection chamber that extend in a direction in which the electrochemical cells are arranged. A support substrate of an electrochemical cell includes a first gas channel and a second gas channel. The first gas channel is connected to the gas supply chamber, and the second gas channel is connected to the gas collection chamber.

An auxiliary power system for an airplane includes at least one fuel cell unit each with at least one fuel cell, a voltage output, a fuel intake and an outlet for reaction products, a fuel tank that is couplable with the fuel intake of the fuel cell unit, at least one compressor unit with an air intake and air outlet and an electric motor, which is couplable with a voltage output of the at least one fuel cell unit and, by way of a shaft, with the at least one compressor unit. At least the at least one fuel cell unit, the compressor unit and the electric motor are interconnected to yield a coherent unit, which continuously provides electrical power and pressurized air.

In accordance with a fuel cell module, a cell stack is housed in a housing including a box and a lid, and the lid is provided with a first gas flow channel through which either one of oxygen containing gas and exhaust gas flows. Therefore, the configuration of the housing can be simplified. Since the lid is provided with the gas flow channel, an accommodation space inside the box can be enlarged, the cell stack can be easily housed inside the housing through an opening, and the fuel cell module can be easily assembled.

A testing device for tubular solid oxide fuel cells (SOFC) includes a housing within which the tubular SOFC is mounted. The housing includes suitable inlets and outlets to allow a fuel gas, such as hydrogen, and an oxidant, such as air or oxygen, to interact with the anode and cathode of the tubular SOFC. In addition, the housing is formed of suitable material for placement in a heating device, such as a tubular furnace or a miniature tubular heater. A temperature sensor and computing device may monitor the temperature of the tubular SOFC in order to control the operation of the tubular heating device. In addition, the device provides electrical current collectors for coupling to the anode and cathode of the SOFC, which may be removable and reusable.

To provide a fuel cell stack device that is applicable to miniaturization of the device and does not require a pipe for discharging off-gas up to a combustion section. A fuel cell stack device including: a first manifold 2a for supplying fuel gas supplied from a reformer 12 to a plurality of fuel cells provided in a first cell stack from above, the first manifold being connected to upper ends of the plurality of fuel cells provided in the first cell stack 10a; and a second manifold 2b for recovering fuel gas discharged from the first cell stack, and supplying the recovered fuel gas to the plurality of fuel cells provided in the second cell stack from below, the second manifold being connected to lower ends of the plurality of fuel cells provided in the second cell stack 10b.

To provide a fuel cell stack device that is applicable to miniaturization of the device and does not require a pipe for discharging off-gas up to a combustion section. A fuel cell stack device including: a first manifold 2a for supplying fuel gas supplied from a reformer 12 to a plurality of fuel cells provided in a first cell stack from above, the first manifold being connected to upper ends of the plurality of fuel cells provided in the first cell stack 10a; and a second manifold 2b for recovering fuel gas discharged from the first cell stack, and supplying the recovered fuel gas to the plurality of fuel cells provided in the second cell stack from below, the second manifold being connected to lower ends of the plurality of fuel cells provided in the second cell stack 10b.

A cell stack device according to the present disclosure includes: a cell stack comprising a plurality of cells; and a manifold configured to supply reaction gas to the plurality of cells, wherein each of the plurality of cells includes: an element part comprising: a fuel electrode layer that is located on the fuel electrode layer; a solid electrolyte layer that is located on the fuel electrode layer; a middle layer that is located on the solid electrolyte layer; and an air electrode layer that is located on the middle layer, the middle layer including: a first middle layer bonded to the solid electrolyte layer; and a second middle layer bonded to the air electrode layer; and a non-element part of the cell that comprises the entire cell excluding the air electrode layer, the non-element part located at least at a first of both ends of the plurality of cells in a longitudinal direction, and the plurality of cells is fixed to the manifold at least at the first end by a sealing material located between the manifold and either the solid electrolyte layer or the first middle layer.

A fuel cell module includes a plurality of power generation cells. Each of the power generation cells includes an electrolyte electrode assembly for performing power generation by utilizing a fuel gas and an oxygen-containing gas. The plurality of power generation cells are stacked together in a circle, and a tightening load is applied to the plurality of power generation cells in a circumferential direction. Each of the plurality of power generation cells has a V-shape, and a peak of the V-shape is oriented to the center of the fuel cell module.

A fuel cell module includes a plurality of power generation cells. Each of the power generation cells includes an electrolyte electrode assembly for performing power generation by utilizing a fuel gas and an oxygen-containing gas. The plurality of power generation cells are stacked together in a circle, and a tightening load is applied to the plurality of power generation cells in a circumferential direction. Each of the plurality of power generation cells has a V-shape, and a peak of the V-shape is oriented to the center of the fuel cell module.

A cell provided with a solid electrolyte layer (4) made from a ZrO.sub.2-based sintered member; an inter-connector layer (8) containing a La-containing perovskite composite oxide, including a pair of end portions of the inter-connector layer (8) covering a pair of end portions of the solid electrolyte layer (4); and constituting an annular member with the solid electrolyte layer (4); an outer electrode layer (6) disposed outward of the solid electrolyte layer (4); and an inner electrode layer (3) disposed inward of the solid electrolyte layer (4). In such a cell, the solid electrolyte layer (4) includes a first portion overlapping the pair of end portions of the inter-connector layer (8), and a second portion disposed between the outer electrode layer (6) and the inner electrode layer (3) and having an average thickness of 15 m or less. Additionally, the first portion is thicker than the second portion.