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
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.
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1. A fuel cell separator comprising: a first electrode facing plate having a first cell-reaction region provided to face a first electrode of a first membrane electrode assembly when constituting a fuel cell, wherein the first cell-reaction region is flat and a gas flow path is not formed on the fir
1. A fuel cell separator comprising: a first electrode facing plate having a first cell-reaction region provided to face a first electrode of a first membrane electrode assembly when constituting a fuel cell, wherein the first cell-reaction region is flat and a gas flow path is not formed on the first cell-reaction region:a second electrode facing plate having a second cell-reaction region provided to face a second electrode of a second membrane electrode assembly when constituting a fuel cell, wherein the second cell-reaction region is flat and a gas flow path is not formed on the second cell-reaction region; andan intermediate plate held between and in direct contact with the first electrode facing plate and the second electrode facing plate;wherein the first electrode facing plate, the second electrode facing plate and the intermediate plate respectively comprise a reaction gas supply manifold opening that forms a single reaction gas supply manifold to which a reaction gas is to be supplied, wherein the single reaction gas supply manifold pierces the separator in the thickness direction,wherein the first electrode facing plate further comprises a plurality of reaction gas supply holes that pierce the first electrode facing plate in the thickness direction and are formed at an end of the first cell-reaction region, andwherein the intermediate plate further comprises a plurality of reaction gas supply path openings that pierce the intermediate plate in the thickness direction and form reaction gas supply paths, wherein each of the reaction gas supply paths has one end connected to the single reaction gas supply manifold and the other end connected to at least one of the plurality of reaction gas supply holes formed on the first electrode facing plate;wherein the reaction gas supply manifold includes a fuel gas supply manifold for supplying fuel gas, andwherein the fuel gas supply manifold is positioned adjacent to a corner of the intermediate plate. 2. A separator according to claim 1, wherein the number of the reaction gas supply path openings and the number of the reaction gas supply holes are the same, andwherein the reaction gas supply path openings correspond one-to-one with the reaction gas supply holes. 3. A separator according to claim 1, wherein the flow volume of reaction gas supplied from the plurality of reaction gas supply holes to the first electrode is controlled according to the shape and the dimension of the reaction gas supply path and the reaction gas supply holes. 4. A separator according to claim 3, wherein the plurality of reaction gas supply path openings respectively have the same shape and dimensions. 5. A separator according to claim 3, wherein the plurality of reaction gas supply holes respectively have the same shape and dimensions. 6. A separator according to claim 4, wherein the plurality of reaction gas supply path openings are formed to be respectively parallel to each other. 7. A separator according to claim 6, wherein the first electrode facing plate is provided to face the cathode electrode of the first membrane electrode assembly, andwherein the plurality of reaction gas supply path openings are arranged from one end across to the other end of one edge of the first cell-reaction region. 8. A separator according to claim 1, wherein the first electrode facing plate, the second electrode facing plate and the intermediate plate further respectively comprise a reaction gas exhaust manifold opening that forms a reaction gas exhaust manifold from which reaction gas to be exhausted, wherein the reaction gas exhaust manifold pierces the separator in the thickness direction,wherein the first electrode facing plate further comprises a plurality of reaction gas exhaust holes that pierce the first electrode facing plate in the thickness direction and are formed at an end of the first cell-reaction region and of the side opposite the end at which the reaction gas supply holes are formed, andwherein the intermediate plate further comprises a plurality of reaction gas exhaust path openings that pierce the intermediate plate in the thickness direction and form reaction gas exhaust paths, wherein each of the reaction gas exhaust paths has one end connected to the reaction gas exhaust manifold and other end connected to at least one of the plurality of reaction gas exhaust holes. 9. A separator according to claim 2, wherein a width of the reaction gas supply hole or the reaction gas exhaust hole is wider than a width of the connected reaction gas supply path or the connected reaction gas exhaust path. 10. A separator according to claim 1, wherein at least one of the first electrode facing plate and the second electrode facing plate comprise:a first layer having a contact surface with the intermediate plate; anda second layer having a facing surface provided to face the membrane electrode assembly when constituting the fuel cell, wherein the second layer is made of a material having a higher corrosion resistance than a material of the first layer. 11. A separator according to claim 10, wherein the combination of the material of the first layer and the material of the second layer is one of the following:the first layer is stainless steel and the second layer is titanium or a titanium alloythe first layer is titanium and the second layer is a titanium palladium alloy. 12. A method of producing a separator according to claim 1, wherein the reaction gas supply manifold opening, the reaction gas supply holes, and the reaction gas supply path openings are formed by a punch cutting process. 13. A method of producing a separator according to claim 8, wherein the reaction gas exhaust manifold opening, the reaction gas exhaust holes, and the reaction gas exhaust path openings are formed by a punch cutting process. 14. A fuel cell comprising: a first membrane electrode assembly having a first electrode;a second membrane electrode assembly having a second electrode; anda separator according to claim 1, whereinthe first cell-reaction region faces the first electrode and the second cell-reaction region faces the second electrode. 15. A fuel cell according to claim 14, wherein a porous layer arranged between the first electrode and the first electrode facing plate functions as a reaction gas flow path for flowing the reaction gas, andthe pressure loss of the reaction gas for the reaction gas supply paths and the reaction gas supply holes is greater than the pressure loss of the reaction gas for the porous layer, whereby the flow volume of the reaction gas supplied from the plurality of reaction gas supply holes to the first electrode is controlled by the pressure loss of the reaction gas for the reaction gas supply path and the reaction gas supply holes.
Wilkinson David P. (Vancouver CAX) Voss Henry H. (West Vancouver CAX) Watkins David S. (Coquitlam CAX) Prater Keith B. (Vancouver CAX), Solid polymer fuel cell systems incorporating water removal at the anode.
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