摘要:
In a seal gasket-integrated MEA (45) in which a frame (450) having a sealing part (459) is integrally formed around a membrane-electrode assembly (MEA section 451), a high-rigidity member (458) having higher rigidity than the frame (450) is provide around a frame (450) having relatively low rigidity.
摘要:
A fuel cell including a separator (40), a porous body (27) through which reaction gas flows, and a power generating unit (20) having a built-in seal gasket, in which the porous body (27) has a prevention section (50) formed on its outer perimeter, the porosity of the prevention section (50) being lower than the porosity of the porous body (27).
摘要:
Ribs (41a, 43a) are formed on a cathode plate (41) and an anode plate (43) of a fuel cell (10). The ribs (41a, 43a) protrude toward a contact surface of porous members (26, 27), and provided along an outer periphery of the porous members (26, 27) to surround the outer periphery of the porous members (26, 27). The rib (41a) of the cathode plate (41) and the rib (43a) of the anode plate (43) are arranged to face each other when separator (40) and the porous members (26, 27) are stacked on both sides of a power generating portion (20). The power generating portion (20), the porous members (26, 27), and the separator (40) are stacked such that a seal gasket (30) on the power generating portion (20) is partially sandwiched between the ribs (41a, 43a).
摘要:
The separator of which the region facing the MEA is a flat includes the first electrode facing plate and the second electrode facing plate. The separator includes the reaction gas supply manifold to which the reaction gas is supplied. The first electrode facing plate includes a plurality of reaction gas supply holes formed at the end of the cell-reaction region. The intermediate plate includes a plurality of reaction gas supply path slits that forms the reaction gas supply paths, wherein each of the reaction gas supply paths has one end connected to the reaction gas supply manifold and other end connected to at least one of the plurality of reaction gas supply holes.
摘要:
A fuel cell includes a porous element, a first electrode, and a separator. The porous element is an element as a channel through which a reaction gas passes into the interior, the porous element having a first surface and a second surface. The first electrode is disposed on the first surface side of the porous element. The separator in contact with the second surface of the porous element is includes a first plate and a second plate, the first plate having a contact part in contact with the second surface, the second plate facing the first plate. A cooling medium channel is formed between the first plate and the second plate. The first plate has first dimples that are indented on a side of the first porous element and protrude on a side of the cooling medium channel.
摘要:
A separator of a fuel cell stack, which has flat surfaces that face MEAs, includes a cathode-side plate, an anode-side plate and an intermediate plate. The intermediate plate has a plurality of oxidant gas supply channel openings that communicate with an oxidant gas supply manifold and oxidant gas supply holes of the cathode-side plate, and a plurality of oxidant gas exhaust channel openings that communicate with an oxidant gas exhaust manifold and oxidant gas exhaust holes of the anode-side plate. The width and spacing of the oxidant gas exhaust channel openings are set to be larger than those of the oxidant gas supply channel openings.
摘要:
A fuel cell has a plurality of unit fuel cells and a gas manifold configured to path through the plurality of the unit fuel cells. Each of the plurality of unit fuel cells has an electrode and a separator. The separator includes in its interior a plurality of gas channels configured to communicate the gas manifold and a gas passage existing on a surface of the electrode. These gas channels include at least one gas through hole configured to open on a surface of the separator facing the electrode. The gas through holes provided on the plurality of gas channels include a first through hole group provided at a short distance from the gas manifold, and a second through hole group provided at a large distance from the gas manifold.
摘要:
The separator of which the region facing the MEA is a flat includes the first electrode facing plate and the second electrode facing plate. The separator includes the reaction gas supply manifold to which the reaction gas is supplied. The first electrode facing plate includes a plurality of reaction gas supply holes formed at the end of the cell-reaction region. The intermediate plate includes a plurality of reaction gas supply path slits that forms the reaction gas supply paths, wherein each of the reaction gas supply paths has one end connected to the reaction gas supply manifold and other end connected to at least one of the plurality of reaction gas supply holes.
摘要:
A separator of a fuel cell stack, which has flat surfaces that face MEAs, includes a cathode-side plate, an anode-side plate and an intermediate plate. The intermediate plate has a plurality of oxidant gas supply channel openings that communicate with an oxidant gas supply manifold and oxidant gas supply holes of the cathode-side plate, and a plurality of oxidant gas exhaust channel openings that communicate with an oxidant gas exhaust manifold and oxidant gas exhaust holes of the anode-side plate. The width and spacing of the oxidant gas exhaust channel openings are set to be larger than those of the oxidant gas supply channel openings.
摘要:
The present invention has as an object to produce a thinner electrolyte layer in a solid oxide type fuel cell. In a solid oxide type fuel cell, a solid oxide electrolyte layer 110 is grown on the surface of a hydrogen-permeable metal layer 120. A structure is provided for preventing interlayer separation of the hydrogen-permeable metal layer 120 and the electrolyte layer 110 due to expansion of the hydrogen-permeable metal layer 120 during permeation of hydrogen. As the separation preventing mechanism, there can be employed a structure that prevents expansion of the hydrogen-permeable metal layer 120, or a structure wherein the electrolyte layer is divided to ameliorate stress during expansion. By so doing, the electrolyte layer can be thinned sufficiently.