A manufacturing apparatus for a fuel cell member includes a positioning device for positioning a resin frame equipped membrane electrode assembly and a separator member. This positioning device includes a base and positioning pins which are inserted into positioning holes formed in the resin frame equipped membrane electrode assembly and the separator member. Lifting members are provided around the positioning pins. The lifting member is lifted and lowered by a lifting mechanism.

A method of production of a channel member for fuel cell use comprising a step of obtaining a sheet-shaped first conductor part 11 containing a carbon material of at least one of carbon nanotubes, granular graphite, and carbon fibers and a first resin, a step of laying a sheet-shaped second conductor part 21 containing a carbon material and a second resin with a lower melting point than the first resin to form a sheet-shaped base part 13, a step of transferring a grooved surface 51 to a surface to form a grooved base part 16 provided with groove part 15, a step of laying a sheet-shaped third conductor part 31 containing a carbon material and a third resin with a lower melting point than the first resin, and a step of integrally joining the grooved base part and the third conductor part by hot melt bonding to cover the groove parts.

A method of production of a channel member for fuel cell use comprising a step of obtaining a sheet-shaped first conductor part 11 containing a carbon material of at least one of carbon nanotubes, granular graphite, and carbon fibers and a first resin, a step of laying a sheet-shaped second conductor part 21 containing a carbon material and a second resin with a lower melting point than the first resin to form a sheet-shaped base part 13, a step of transferring a grooved surface 51 to a surface to form a grooved base part 16 provided with groove part 15, a step of laying a sheet-shaped third conductor part 31 containing a carbon material and a third resin with a lower melting point than the first resin, and a step of integrally joining the grooved base part and the third conductor part by hot melt bonding to cover the groove parts.

A method of production of a channel member for fuel cell use comprising a step of obtaining a sheet-shaped first conductor part 11 containing a carbon material of at least one of carbon nanotubes, granular graphite, and carbon fibers and a first resin, a step of laying a sheet-shaped second conductor part 21 containing a carbon material and a second resin with a lower melting point than the first resin to form a sheet-shaped base part 13, a step of transferring a grooved surface 51 to a surface to form a grooved base part 16 provided with groove part 15, a step of laying a sheet-shaped third conductor part 31 containing a carbon material and a third resin with a lower melting point than the first resin, and a step of integrally joining the grooved base part and the third conductor part by hot melt bonding to cover the groove parts.

A method of production of a channel member for fuel cell use comprising a step of obtaining a sheet-shaped first conductor part 11 containing a carbon material of at least one of carbon nanotubes, granular graphite, and carbon fibers and a first resin, a step of laying a sheet-shaped second conductor part 21 containing a carbon material and a second resin with a lower melting point than the first resin to form a sheet-shaped base part 13, a step of transferring a grooved surface 51 to a surface to form a grooved base part 16 provided with groove part 15, a step of laying a sheet-shaped third conductor part 31 containing a carbon material and a third resin with a lower melting point than the first resin, and a step of integrally joining the grooved base part and the third conductor part by hot melt bonding to cover the groove parts.

A bipolar plate for an electrochemical device, including a first bipolar plate layer and a second bipolar plate layer joined by a weld seam arrangement, wherein the first bipolar plate layer has a first and a second medium passage opening. The weld seam arrangement includes a first and a second medium channel weld seam, and a connecting weld seam which crosses the first and the second medium channel weld seams. Either a) the connecting weld seam is produced by a welding energy source which the first bipolar plate layer faced during the welding process, and the weld seam end of the connecting weld seam lies within the medium-conducting region of the bipolar plate which is surrounded by the first medium channel weld seam, and/or b) the connecting weld seam crosses the first medium channel weld seam and/or the second medium channel weld seam at least twice in each case.

A zinc-air fuel cell with multiple electric connectors includes: a case forming a space; multiple gas chambers disposed in the space; two air electrode layers disposed in the space and serving as positive electrodes for discharging; a metal layer disposed in the space and serving as a positive electrode for charging; a zinc material disposed in the space and serving as a negative electrode; multiple separators disposed in the space so that the air electrode layers, the zinc material and the metal layer are separately arranged; an electrolyte disposed in the space, capable of flowing to pass through the separators and in contact with the air electrode layers, the metal layer and the zinc material so that the air electrode layers, the zinc material and the metal layer are respectively electrically connected.

A zinc-air fuel cell with multiple electric connectors includes: a case forming a space; multiple gas chambers disposed in the space; two air electrode layers disposed in the space and serving as positive electrodes for discharging; a metal layer disposed in the space and serving as a positive electrode for charging; a zinc material disposed in the space and serving as a negative electrode; multiple separators disposed in the space so that the air electrode layers, the zinc material and the metal layer are separately arranged; an electrolyte disposed in the space, capable of flowing to pass through the separators and in contact with the air electrode layers, the metal layer and the zinc material so that the air electrode layers, the zinc material and the metal layer are respectively electrically connected.

A battery includes a redox flow anode chamber coupled to an anode current collector, a separator, and an external container in fluid connection with the redox flow anode chamber. The external container has therein a solid phosphorus material. A first redox-active mediator and the second redox-active mediator are circulated through the half-cell electrode chamber and the external container. During a charging cycle the first redox-active mediator is reduced at the current collector electrode and the reduced first mediator reduces the phosphorus material, and wherein during a discharging cycle the second redox-active mediator is oxidized at the anode current collector electrode, and the second redox-active mediator is then reduced by the reduced phosphorus material. A method of operating a battery and a method of making a battery are also discussed.

A battery includes a redox flow anode chamber coupled to an anode current collector, a separator, and an external container in fluid connection with the redox flow anode chamber. The external container has therein a solid phosphorus material. A first redox-active mediator and the second redox-active mediator are circulated through the half-cell electrode chamber and the external container. During a charging cycle the first redox-active mediator is reduced at the current collector electrode and the reduced first mediator reduces the phosphorus material, and wherein during a discharging cycle the second redox-active mediator is oxidized at the anode current collector electrode, and the second redox-active mediator is then reduced by the reduced phosphorus material. A method of operating a battery and a method of making a battery are also discussed.