摘要:
[Problems] Miniaturization and weight-saving of a fuel cell including a plurality of unit cells are intended together with higher integration of the unit cells. [Means for Solving Problems] A pair of electrode sheet 100a, 100b, each having a plurality of fuel electrodes 110a, 110b or a plurality of oxidant electrodes 112a, 112b supported by a resin section 102, are disposed on a single plane on the respective surfaces of a solid electrolyte membrane 105 to configure a plurality of unit cells. The fuel electrode and the oxidant electrode of the adjacent two unit cells existing on the respective surfaces of the solid electrolyte membrane are connected in series by using an electroconductive member penetrating the solid electrolyte membrane. Since the electroconductive member 108 extends along the stacking direction of the cell, no excess space is required to achieve the miniaturization of the fuel cell.
摘要:
A liquid supply container (1) provided in a fuel cell system includes a liquid chamber (10) that stores liquid therein, and a liquid supply port (30) provided in the liquid chamber (10) so as to supply the liquid stored therein to a liquid acceptor, and the liquid chamber (10) includes a groove (11) having a V-shape cross-section and formed on an upper surface (13C) of the liquid chamber (10), which serves to allow communication between the inside and the outside of the liquid chamber (10) in the case the internal pressure increases over a predetermined level.
摘要:
A liquid fuel supply type fuel cell is provided in which water present in the oxidizer electrode is promptly removed and evaporated, thereby achieving high output. A fuel cell electrode and methods for manufacturing the same are also provided. In a fuel cell, a base material is provided with a hydrophobic layer on the surface in contact with a catalyst layer for discharging water promptly, and a hydrophilic layer from the hydrophobic layer towards the outside of the cell for evaporating water which has passed through the hydrophobic layer from the surface.
摘要:
Fuel cartridge 1501 has a double structure including case 1502 and inner container 1503 stored with liquid fuel 124. Case 1502 is made of a resin that is impact-resistant. Inner container 1503 is made of a resin resistant to liquid fuel.
摘要:
A fuel cell system which allows uniform fuel distribution to respective fuel cells, comprising: a plurality of fuel cells 5 each including an anode 2, a cathode 3 and an electrolyte membrane 4 disposed between the anode 2 and the cathode 3; and a fuel supply flow path 6 branched to supply fuel to each of the fuel cells 5. The sectional area of the fuel supply flow path in the downstream of each branch connection is narrower than that in the upstream. The above-described structure avoids the decrease in the fuel supply pressure due to the reduced sectional area in the downstream of the branch connection. Therefore, the fuel is supplied to the respective fuel cell with uniform pressure.
摘要:
A fuel cell includes electrode sheets composed of an electrically conductive porous body composed by a sheet member having a framework having a three-dimensional mesh structure containing pores, a catalyst layer formed on one side thereof, and a resin portion integrally formed on an outer peripheral edge; the electrically conductive porous body has a current collection portion formed in a portion thereof having a laminated structure consisting of a plurality of sheet members, and the pores in each sheet member of the current collection portion are formed to be pressed flatter than the pores of other portions; a resin penetrates into pores within the electrically conductive porous body at bound portions of the resin portion and the electrically conductive porous body; and, among a plurality of unit cells A and B, at least a portion thereof are connected in series by means of an electrically conductive member that passes through an electrolyte membrane from the current collection portion of the electrically conductive porous body.
摘要:
A plurality of fuel electrodes are disposed on one surface of a solid polyelectrolyte membrane, while a plurality of oxidizer electrodes are disposed on the other surface of the same to create a plurality of unit cells which share the solid polyelectrolyte membrane. These unit cells are electrically connected through connection electrode extending through the solid polyelectrolyte membrane. A groove is formed in a region of the solid polyelectrolyte membrane between adjacent unit cells. This groove limits the migration of hydrogen ions to adjacent unit cells to prevent a reduction in voltage. The resulting solid polymer fuel cell, which is in a simple structure and reduced in size, can provide high power.
摘要:
A fuel cell includes a fuel cell main unit (110) in which organic liquid fuel is supplied to a fuel electrode (102) as fuel, and a vibration generating unit (314, 324) which generates vibration to vibrate the fuel electrode (102) such that carbon dioxide generated at the fuel electrode is removed. The fuel cell may includes a control unit (463) which controls an operation of the vibration generating unit (314, 324) based on an output of the fuel cell main unit (110).
摘要:
To provide a liquid fuel supply type fuel cell in which water present in the oxidizer electrode is promptly removed and evaporated, thereby achieving high output, a fuel cell electrode, and methods for manufacturing the same. In a fuel cell 100, a base material 110 is provided with a hydrophobic layer 441 on the surface in contact with a catalyst layer 112 for discharging water promptly, and a hydrophilic layer 443 from the hydrophobic layer 441 towards the outside of the cell for evaporating water which has passed through the hydrophobic layer 441 from the surface.
摘要:
Disclosed herein is a process of synthesizing urea including reacting ammonia and carbon dioxide at a urea synthesis pressure and temperature in a urea synthesis zone, separating excess ammonia and unreacted ammonium carbamate from the thus-obtained urea synthesis melt as a gaseous mixture containing ammonia and carbon dioxide, recirculating the gaseous mixture to the urea synthesis zone, and, on the other hand, obtaining urea from an aqueous urea solution which has been obtained by separating the excess ammonia and unreacted ammonium carbamate. The above process features ingeniously combined conditions of various process steps. It produces urea using less high-pressure steam and recovers less low-pressure steam. A stripping operation making use of carbon dioxide can be effectively incorporated in the above process. The above process permits to cut the construction cost of a urea synthesis plant.