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 is formed by alternately stacking separators and sealing gasket-combined membrane electrode assemblies. Each sealing gasket-combined membrane electrode assembly includes a membrane electrode assembly and a sealing gasket portion. One of the sealing gasket portion and the separator has a protrusion formed on each face and extending in a stacked direction in which the separators and the sealing gasket-combined membrane electrode assemblies are stacked. The other of the sealing gasket portion and the separator has a recess in which the protrusion is fitted. The protrusions formed respectively on opposed faces of the successive sealing gasket-combined membrane electrode assemblies or the successive separators are located at different positions.
摘要:
A fatty acid such as an acetic acid or a butyric acid is added to a fuel gas for a fuel cell as an odorant. This makes it possible to add an odor to the fuel gas without poisoning an electrode catalyst and an electrolyte, and to prevent the odor from remaining in an exhaust gas emitted from the fuel cell.
摘要:
A sheet metal formed thereon with a number of spaced projections, wherein the projections are formed by the steps of positioning the sheet metal between a female die formed with a number of spaced recesses at one surface thereof and a male die formed with a concavity to be coupled with the female die and a number of spaced projections located at the bottom of the concavity to correspond with the recesses of the female die and pressing the sheet metal under existence of hydraulic fluid between the sheet metal and the concavity of the male die.
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 separator is pressed so that one side thereof defines a gas flow channel and that the other side thereof defines a coolant flow channel. A width dG and a cross-sectional area SG of the gas flow channel and a width dW and a cross-sectional area Sw of the coolant flow channel satisfy a relationship: dG≧dW or a relationship: SG≧SW.
摘要翻译:燃料电池分离器被压制,使得其一侧限定气体流动通道,并且其另一侧限定冷却剂流动通道。 气体流动通道的宽度d N G和横截面面积S N G和横截面积S 冷却剂流动通道的 SUB>满足以下关系:d SUB> = d SUB>或关系:S< > = S SUB>。
摘要:
A separator for a fuel cell, where the fuel cell has two separators and an MEA sandwiched by the metal separators. The separator has a portion corresponding to the power generating portion of the MEA and opposing portions located on opposite sides of the power generating portion. The separator has a gas passage at a first surface and a coolant passage at a second, opposite surface. The gas passage has an odd number of straight-extending portions and an even number of U-turn portions and extends between the opposing portions by U-turning twice or more. The coolant passage extends straight between the opposing portions without U-turning.
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 includes: an anode-forming layer that is provided on an outer side of one surface of an electrolyte membrane and that includes an anode; a cathode provided on an outer side of another surface of the electrolyte membrane; a partition wall portion that is formed in the anode-forming layer in the thickness direction thereof, and that divides at least a surface of the anode-forming layer remote from the electrolyte membrane into blocks, and that restrains movement of a gas between adjacent blocks; and a gas introduction portion which has a gas passage portion that allows the fuel gas to pass through and which introduces the fuel gas, via the gas passage portion, into the blocks divided by the partition wall portion.
摘要:
A stainless steel separator, which is good of corrosion-resistance and low of contact-resistance, is proposed for a fuel cell. Its surface faced to a fuel electrode is pickled, which the other surface faced to an oxidizing electrode is roughened by electrolytic etching or the like. The roughening treatment may be performed before or after pickling and passivation. The roughened surface of the stainless steel separator without pickling or passivation may be faced to the oxidizing electrode.