Abstract: In a solid polymer electrolyte membrane [film] type fuel cell of the invention, where a pair of electrodes are provided on opposite sides of a solid polymer electrolyte membrane [film], and the outside thereof is clamped by a pair of separators, and nonconductive picture frame-shaped members 61 are arranged at the outer edge portions of the separators, for allowing increase and decrease of a space between separators, while sealing a gap between the separators.

Abstract: In a solid polymer electrolyte membrane [film] type fuel cell of the invention, where a pair of electrodes are provided on opposite sides of a solid polymer electrolyte membrane [film], and the outside thereof is clamped by a pair of separators, and nonconductive picture frame-shaped members 61 are arranged at the outer edge portions of the separators, for allowing increase and decrease of a space between separators, while sealing a gap between the separators.

Abstract: In a solid polymer electrolyte membrane type fuel cell of the invention, where a pair of electrodes are provided on opposite sides of a solid polymer electrolyte membrane, and the outside thereof is clamped by a pair of separators, and nonconductive picture frame-shaped members 61 are arranged at the outer edge portions of the separators, for allowing increase and decrease of a space between separators, while sealing a gap between the separators.

Abstract: An electrolyte membrane/electrode web member includes an elongated solid polymer electrolyte membrane. A plurality of anodes and a plurality of cathodes are provided on one surface, and on the other surface of the solid polymer electrolyte membrane, respectively. First and second gas diffusion current collector members are inserted into the electrolyte membrane/electrode web member from both sides. Each of the first and second gas diffusion current collector members is formed by folding a single electrically conductive plate into a substantially U-shape. Electrical insulation is provided by interposing the insulating member between the first and second gas diffusion current collector members.

Abstract: The fuel cell comprises: a membrane electrode assembly having a solid polymer electrolyte membrane, an anode side diffusion electrode (an anode electrode, and a second diffusion layer) disposed at one side of the solid polymer electrolyte membrane, and a cathode side diffusion electrode (a cathode electrode, and a first diffusion layer) disposed at the other side of the solid polymer electrolyte membrane; a pair of separators which hold the membrane electrode assembly; a projecting portion which extends from the solid polymer electrolyte membrane and which projects from the peripheries of the anode side diffusion electrode and the cathode side diffusion electrode; and a seal, provided on the separators, which was liquid sealant at the time of application. The seal makes contact with the projecting portion while the membrane electrode assembly is disposed between the separators.

Abstract: A method for fabricating a seal-integrated separator for a fuel cell is presented, with which seals can be accurately positioned and the assembling time for the fuel cell units may be greatly reduced.

Abstract: An electrolyte membrane/electrode web member includes an elongated solid polymer electrolyte membrane. A plurality of anodes and a plurality of cathodes are provided on one surface, and on the other surface of the solid polymer electrolyte membrane, respectively. First and second gas diffusion current collector members are inserted into the electrolyte membrane/electrode web member from both sides. Each of the first and second gas diffusion current collector members is formed by folding a single electrically conductive plate into a substantially U-shape. Electrical insulation is provided by interposing the insulating member between the first and second gas diffusion current collector members.

Abstract: The fuel cell of the present invention comprises: a membrane electrode assembly having a solid polymer electrolyte membrane, an anode side diffusion electrode located at one side of the solid polymer electrolyte membrane, and a cathode side diffusion electrode located at the other side of the solid polymer electrolyte membrane, the anode side diffusion electrode comprising an anode electrode, and a first gas diffusion layer, the cathode side diffusion electrode comprising a cathode electrode, and a second gas diffusion layer; a pair of separators which hold the membrane electrode assembly; and a seal, provided onto the separators, which was liquid sealant at the time of application. The sealant makes contact with at least one of end faces of the first gas diffusion layer and the second gas diffusion layer, while the membrane electrode assembly is located between the separators.

Abstract: A method for fabricating a seal-integrated separator for a fuel cell is presented, with which seals can be accurately positioned and the assembling time for the fuel cell units may be greatly reduced.

Abstract: In a solid polymer electrolyte membrane type fuel cell of the invention, where a pair of electrodes are provided on opposite sides of a solid polymer electrolyte membrane, and the outside thereof is clamped by a pair of separators, and nonconductive picture frame-shaped members 61 are arranged at the outer edge portions of the separators, for allowing increase and decrease of a space between separators, while sealing a gap between the separators.

Abstract: In a solid polymer electrolyte membrane type fuel cell of the invention, where a pair of electrodes are provided on opposite sides of a solid polymer electrolyte membrane, and the outside thereof is clamped by a pair of separators, and nonconductive picture frame-shaped members 61 are arranged at the outer edge portions of the separators, for allowing increase and decrease of a space between separators, while sealing a gap between the separators.

Abstract: A method for fabricating a seal-integrated separator for a fuel cell is presented, with which seals can be accurately positioned and the assembling time for the fuel cell units may be greatly reduced.

Abstract: A method for mounting a seal in a fuel cell comprising: a membrane electrode assembly formed by holding an electrolyte membrane between a first electrode and a second electrode and having a seal mounting portion; a separator plate layered on both surfaces of the membrane electrode assembly so as to form gas passage; and a frame-shaped separator plate held between the membrane electrode assembly and the separator plate so as to seal the gas passage in air tight. The method comprises: preforming the seal into a predetermined shape; setting the seal at the mounting portion of the membrane electrode assembly; and integrally forming the seal with the membrane electrode assembly.

Abstract: A method for producing a fuel cell unit including a membrane electrode assembly formed by a solid polymer electrolyte membrane and a pair of electrodes located at both sides of the solid polymer electrolyte membrane, and a pair of separators which hold the membrane electrode assembly. The method includes the steps of applying liquid sealant to one of a marginal portion of the solid polymer electrolyte membrane, the marginal portion being not covered by the pair of electrodes when assembled, and a surface of each of the pair of separators, the surface corresponding to the marginal portion of the solid polymer electrolyte membrane; holding the solid polymer electrolyte membrane with the pair of separators to perform temporary assembling; and solidifying the liquid sealant while maintaining a temporary assembling state.

Abstract: A metallic separator for a fuel cell (and a manufacturing method therefore) can reduce damage to an electrode assembly, open up the maximum capacity of the reducing effect of contact resistance due to coating of gold by gold plating or the like, and reduce consumption of gold to lower the cost. Conductive inclusions are exposed at the surface with corrosion resistance, and at least one kind of metal or an alloy thereof selected from silver, copper, nickel, and tin is precipitated on the exposed conductive inclusions. From the viewpoint of reducing contact resistance, the conductive inclusions preferably protrude from the separator surface.

Abstract: A sealing resin-metal assembly includes a sealing resin layer injection molded on at least one side of a sheet metal via an elastic primer layer within a mold die. A portion of the elastic primer layer that is brought into abutment with the mold die is formed thicker than the other portion of the elastic primer layer that is not brought into abutment with the mold die so that a clamping pressure of the mole die is received by the elastic primer layer at the portion formed thicker, when the sealing resin layer is laminated.

Abstract: A fuel cell is provided that is reduced in both size and weight while securing a sealed state of respective flow passages by respective sealing members between separators and an electrode assembly. In this fuel cell, there are provided in each of the separators communication ports for reaction gases and cooling medium that are provided outward from gas sealing members, and communication paths that detour around the gas sealing members in the thickness direction of the separators and connect the reaction gas communication ports with gas flow passages. A cooling surface sealing member that seals off the cooling medium flow passage from the reaction gas communication ports is placed at a position shifted from the communication paths towards the communication holes.

Abstract: The fuel cell of the present invention comprises: a membrane electrode assembly having a solid polymer electrolyte membrane, an anode side diffusion electrode (an anode electrode, and a second diffusion layer) disposed at one side of the solid polymer electrolyte membrane, and a cathode side diffusion electrode (a cathode electrode, and a first diffusion layer) disposed at the other side of the solid polymer electrolyte membrane; a pair of separators which hold the membrane electrode assembly; a projecting portion which extends from the solid polymer electrolyte membrane and which projects from the peripheries of the anode side diffusion electrode and the cathode side diffusion electrode; and a seal, provided on the separators, which was liquid sealant at the time of application. The seal makes contact with the projecting portion while the membrane electrode assembly is disposed between the separators.

Abstract: A plug-in type electronic control unit is comprised of a wiring board, a plurality of electronic parts mounted on one surface of the wiring board by utilizing a wireless bonding process, and a plug member mounted on the other surface of the wiring board by utilizing a wireless bonding process. It is possible to suppress the planar extent of the unit by such a laminated structure, and to suppress the extent of the unit in a laminating direction by the employment of the wireless bonding process. Thus, it is possible to achieve a reduction in size of the plug-in type electronic control unit.

Abstract: The fuel cell of the present invention comprises: a membrane electrode assembly having a solid polymer electrolyte membrane, an anode side diffusion electrode (an anode electrode, and a second diffusion layer) disposed at one side of the solid polymer electrolyte membrane, and a cathode side diffusion electrode (a cathode electrode, and a first diffusion layer) disposed at the other side of the solid polymer electrolyte membrane; a pair of separators which hold the membrane electrode assembly; a projecting portion which extends from the solid polymer electrolyte membrane and which projects from the peripheries of the anode side diffusion electrode and the cathode side diffusion electrode; and a seal, provided on the separators, which was liquid sealant at the time of application. The seal makes contact with the projecting portion while the membrane electrode assembly is disposed between the separators.