Patent application number | Description | Published |
20090239121 | Fuel Cell Stack and Fuel Cell Apparatus - A fuel cell stack including an array of a plurality of fuel cells in which power generation efficiency can be increased by uniformizing temperature distribution in a direction of arrangement of fuel cells, is provided. In a fuel cell stack including an array of a plurality of fuel cells electrically connected in series to each other, the fuel cells each being formed by laminating a fuel-side electrode layer, a solid-state electrolytic layer, and an air-side electrode layer one after another on a support substrate, an interval between a plurality of the fuel cells arranged in a midportion thereof in a direction of arrangement of the fuel cells is wider than an interval between a plurality of the fuel cells arranged at either end thereof in the direction of arrangement of the fuel cells. The temperature distribution of the fuel cell stack can be made as nearly uniform as possible. | 09-24-2009 |
20120251904 | FUEL CELL MODULE - A fuel cell module includes: in a casing, a fuel cell stack that is formed by stacking a plurality of unit cells; and an oxidant gas distributing member that is disposed at a side surface, that extends in a stack direction, of the fuel cell stack, that extends in a direction from one end to another end of each of the unit cells, and that supplies the oxidant gas along the oxidant gas distributing member from the one end to the another end to supply the oxidant gas to the another end of each unit cell. The oxidant gas distributing member includes a heat exchange restraint portion that restrains heat exchange between the unit cells and the oxidant gas in at least one of end portions of the fuel cell stack in the stack direction, in comparison with the heat exchange thereof in other portion in the fuel cell stack. | 10-04-2012 |
20120251905 | FUEL CELL MODULE - A fuel cell module includes in a casing: a fuel cell stack that is formed by stacking a plurality of unit cell; an oxidant gas distributing member that is disposed at a side surface, that extends in a stack direction of the unit cells, of the fuel cell stack that extends in a direction from one end to another end of each of the unit cells, and that supplies the oxidant gas to the another end of each unit cell after supplying the oxidant gas through the oxidant gas distributing member from the one end to the another end; a reformer disposed at the one end; and a combustion portion that is disposed between the one end and the reformer. The oxidant gas distributing member has a higher thermal conductivity at the one end side of the unit cells than at the another end side of the unit cells. | 10-04-2012 |
20130084510 | FUEL CELL SYSTEM, CONTROL METHOD FOR FUEL CELL SYSTEM, AND DEGRADATION DETERMINING METHOD FOR FUEL CELL STACK - A fuel cell system includes: a fuel cell stack that is formed of a plurality of serially connected fuel-cell cells that use fuel gas and oxidant gas to generate electric power; a detecting unit that detects an output power generated by each of a first fuel-cell cell group and a second fuel-cell cell group that are grouped on the basis of a power generation performance factor; and an operating condition changing unit that changes an operating condition of the fuel-cell cells on the basis of a rate of deviation between the generated output power of the first fuel-cell cell group, detected by the detecting unit, and the generated output power of the second fuel-cell cell group, detected by the detecting unit. | 04-04-2013 |
20130122387 | Fuel Cell Bundle and Fuel Cell Module Comprising Same - A fuel cell bundle includes a plurality of columnar fuel cell stacks extending in a first direction that are disposed spaced apart so that side surfaces thereof face each other, the fuel cell stacks each having a first gas flow channel along the first direction and also having a plurality of series-connected fuel cells disposed side-by-side in a second direction intersected by the first direction; a connecting member for electrically connecting series-connected fuel cells of a fuel cell stack with series-connected fuel cells of a fuel cell stack adjacent thereto; and a second gas flow channel regulating member for forming a second gas flow channel along the first gas flow channel between itself and the connecting member, the connecting member and the second gas flow channel regulating member being disposed between the adjacent fuel cell stacks. | 05-16-2013 |
20130266879 | FUEL CELL SYSTEM AND OPERATING METHOD THEREOF - A fuel cell system includes a fuel cell that generates electric power using fuel gas and oxygen-containing gas and combusts fuel gas remaining unused for generation of electric power; a fuel gas supply line that supplies the fuel gas to the fuel cell; and an on-off valve disposed in the fuel gas supply line. A shutdown transition mode in which the fuel gas in the fuel gas supply line downstream from the on-off valve is supplied to the fuel cell at a flow rate smaller than that at a time of generation of electric power and is combusted therein after the on-off valve is closed, and a shutdown mode which is started after the shutdown transition mode are provided as an emergency shutdown mode in which the fuel cell undergoes emergency shutdown when the on-off valve of the fuel gas supply line is closed. | 10-10-2013 |
20130295480 | FUEL CELL SYSTEM AND OPERATION METHOD THEREOF - A fuel cell system may be capable of reducing an adverse influence which acts on a fuel cell at the time of restarting the fuel cell after emergency shutdown of operation of the fuel cell. A fuel cell system includes a fuel cell, a fuel gas supply unit, an oxygen-containing gas supply unit, a storage unit that stores whether shutdown of operation of the fuel cell is normal shutdown or emergency shutdown, and a control unit that controls at least the fuel gas supply unit and the oxygen-containing gas supply unit. The control unit, in emergency shutdown, controls the fuel gas supply unit at a time of restarting the fuel cell after the shutdown of the fuel cell so as to reduce an amount of fuel gas supplied to the fuel cell to be less than that at a time of restarting the fuel cell after normal shutdown. | 11-07-2013 |
20150030956 | CELL STACK DEVICE, FUEL CELL MODULE, FUEL CELL DEVICE, AND METHOD OF FABRICATING CELL STACK DEVICE - [Object] To provide a cell stack device, the power generation efficiency of which is improved, and a fuel cell module and a fuel cell device that include the cell stack device. | 01-29-2015 |