Abstract: A fuel cell assembly includes at least a first flow field plate and a second flow field plate sandwiching a multilayer membrane electrode assembly, wherein the multilayer membrane electrode assembly comprises at least a 3-layer membrane electrode assembly including a first electrode facing the first flow field plate, a second electrode facing the second flow field plate and a membrane separating the electrodes, wherein each flow field plate has a flow field structure protruding from a base level of the flow field plate for distributing reactant over the respective electrode, and wherein further at least one sealing element is arranged between the first and the second flow field plate, which is adapted to prevent leakage of the reactants to an environment, wherein in a boundary area between the flow field structure and the sealing element of at least one of the flow field plates at least one bypass stopping element is arranged for avoiding the reactant bypassing the flow field structure, wherein the bypass sto

Abstract: A manufacturing arrangement for a fuel cell stack or at least a unit fuel cell of the fuel cell stack includes at least a pre-arrangement site for arranging a membrane electrode assembly and a bipolar plate in a predefined orientation to each other, wherein the bipolar plate has at least one opening and/or at least one specific contour, and wherein the membrane electrode assembly and the bipolar plate are oriented to each other in such a way that the membrane electrode assembly covers at least one opening in the bipolar plate and/or extends over the bipolar plate in at least one area; wherein the manufacturing arrangement further includes at least one cutting site with a cutting device which is adapted to cut the membrane electrode assembly in a predetermined area so that the membrane electrode assembly has a cut opening, which resembles the at least one opening of the bipolar plate, and/or at least one cut contour, which resembles the at least one contour of the bipolar plate, and/or at least one cut alignme

Abstract: An electric connector for fuel cell stack voltage monitoring includes at least two separate units, each unit including a plurality of pins, each pin being adapted to contact a plate of the fuel cell stack for monitoring a fuel cell stack voltage. The first pin of each unit is adapted to provide a measurement of a reference voltage.

Abstract: A fuel cell stack includes a plurality of bipolar plates wherein each bipolar plate has at least an anode plate and a cathode plate, and a plurality of membrane electrode assemblies being sandwiched by the bipolar plates, wherein each membrane electrode assembly has at least an anode and a cathode which are separated by a membrane, wherein the bipolar plates sandwich the membrane electrode assembly in such a way that the anode of the membrane electrode assembly faces the anode plate of a first bipolar plate and the cathode of the same membrane electrode assembly faces the cathode plate of a second bipolar plate; and wherein a cell pitch of the fuel cell stack is defined by a distance of two adjacent membrane electrode assemblies, wherein at borders of the bipolar plates of the fuel cell stack, an overall distance between the anode plate of the first bipolar plate and the cathode plate of the second bipolar plate, which is measured over the sandwiched membrane electrode assembly, is equal to the cell pitch of

Abstract: A manufacturing arrangement for a fuel cell stack includes at least a first alignment station having a first alignment structure for receiving a bipolar plate and a second alignment structure for arranging a membrane electrode assembly at one side of the bipolar plate, preferably on top of the bipolar plate, in a predefined orientation for aligning the bipolar plate and the membrane electrode assembly, whereby a pre-assembled fuel cell unit is provided; a fastening station for fastening the membrane electrode assembly to the bipolar plate, whereby an assembled fuel cell unit is provided; and a second alignment station haying at least one third alignment structure for aligning the assembled fuel cell units for providing a fuel cell stack, as well as a method for manufacturing a fuel cell stack, and a fuel cell stack having been manufactured by such an arrangement and/or method.

Abstract: A membrane electrode assembly for a fuel cell stack includes at least a cathode, an anode and a membrane therebetween, wherein the membrane electrode assembly further has a basic shape which substantially resembles the shape of a bipolar plate of a fuel cell unit onto which the membrane electrode assembly is intended to be placed, wherein the membrane electrode assembly further includes at least one distinctive alignment projection, which protrudes from a circumference of the basic shape and wherein the distinctive alignment projection has a size and/or shape which is adapted to be contacted by an alignment tool for aligning the membrane electrode assembly in the fuel cell stack, as well as a fuel cell stack including such a membrane electrode assembly and an alignment tool or fuel cell stack housing for aligning and/or housing such a fuel cells stack.

Abstract: Electric connector assembly for electrically contacting at least one bipolar plate of a fuel cell stack including at least a support structure and at least one contact pin, adapted to electrically contact the bipolar plate and is supported by the support structure, the support structure includes at least a rear face which is adapted to face the fuel cell stack, a front face being opposite to the read face, and first and second side faces, the rear face includes at least one bipolar plate housing slit which extends from the first side face to the second side face, adapted to accommodate at least two teeth extending from a support basis, separated by the intermediately arranged bipolar plate housing slit, the support structure further includes at least one contact pin accommodation opening having a size which is adapted to accommodate the contact pin.

Abstract: Fuel cell stack housing including at least a bottom section and a first and a second side wall, which are spaced apart by the bottom section, wherein the housing is adapted to house a fuel cell stack and includes at least one fastening element, which is engaged with the first and the second side wall, wherein at least the first side wall of the housing has a flat section and an arched section extending in direction of the second side wall, and wherein a maximum possible distance between the arched section and the bottom portion defines an inner height of the fuel cell stack housing, where in the inner height of the fuel cell stack housing is adjustable, as well as a fuel cell stack assembly including a fuel cell stack encased by such a housing.

Abstract: Electric connector assembly for electrically contacting at least one bipolar plate of a fuel cell stack including at least a support structure and at least one contact pin, which is adapted to electrically contacting the bipolar plate and is supported by the support structure, wherein the support structure includes at least a rear face which is adapted to face the fuel cell stack, a front face being opposite to the rear face, and first and second side faces, wherein the rear face includes at least one bipolar plate housing slit which extends from the first side face to the second side face, and which is adapted to accommodate at least partly the bipolar plate, thereby defining a comb-shaped support structure with at least two teeth extend from a support basis, which are separated by the intermediately arranged bipolar plate housing slit, and wherein the support structure further includes at least one contact pin accommodation opening having a size which is adapted to accommodate the contact pin.

Abstract: An electric connector for fuel cell stack voltage monitoring includes at least two separate units, each unit including a plurality of pins, each pin being adapted to contact a plate of the fuel cell stack for monitoring a fuel cell stack voltage. The first pin of each unit is adapted to provide a measurement of a reference voltage.

Abstract: A catalytic burner arrangement is provided including at least a catalytic burner unit with a housing having a reaction chamber in which a catalyst is arranged, wherein the catalyst is adapted to react a fuel, particularly a hydrogen containing fluid, with an oxidant, particularly air, for producing heat, the housing having a fluid inlet for supplying a fluid stream into the housing and a find outlet for exiting a fluid stream from the housing, and the catalytic burner arrangement further includes a mixing unit forming a mixing chamber in which fuel and oxidant are mixed, wherein the mixing device includes a fuel inlet, an oxidant inlet and an fuel-oxidant-mixture outlet, and wherein the fluid inlet of the catalytic burner unit merges with the fuel-oxidant-outlet of the mixing unit for transferring the fuel-oxidant-mixture from the mixing chamber to the reaction chamber of the catalytic burner unit wherein the fuel-oxidant-outlet of the mixing chamber is pipe-shaped and extents into the mixing chamber of the m

Abstract: A catalytic burner arrangement including at least a catalytic burner unit with a housing having a reaction chamber in which a catalyst is arranged is provided wherein the catalyst is adapted to react a fuel, particularly a hydrogen containing fluid, with an oxidant, particularly air, for producing heat, the housing having a fluid inlet for supplying a fluid stream into the housing and a fluid outlet for exiting a fluid stream from the housing, and the catalytic burner arrangement further includes a mixing unit forming a mixing chamber in which fuel and oxidant are mixed, wherein the mixing device includes a fuel inlet, an oxidant inlet and an fuel-oxidant-mixture outlet, and wherein the fluid inlet of the catalytic burner unit merges with the fuel-oxidant-outlet of the mixing unit for transferring the fuel-oxidant-mixture from the mixing chamber to the reaction chamber of the catalytic burner unit wherein the fuel inlet of the mixing chamber is arranged upstream of the oxidant inlet of the mixing unit.

Abstract: A bipolar plate assembly for a fuel cell or a fuel cell stack has at least a first flow field plate and a second flow field plate, wherein the first flow field plate and the second flow field plate are fastened on top of each other, wherein the bipolar plate assembly has a first area, in which an edge of the first flow field plate is flush with an edge of the second flow field plate, and has at least one second area, in which the edge of the first flow field plate is recessed from the edge of the second flow field plate. A fuel cell stack having such a bipolar plate assembly, as well as methods for manufacturing such a bipolar plate assembly or such a fuel cell stack are also provided.

Abstract: The present invention relates to a method for fastening an electrical connector assembly to a fuel cell stack arrangement with at least one fuel cell unit comprising at least one bipolar plate and at least one membrane electrode assembly, wherein the electric connector assembly comprises at least a support structure and at least one contact pin, which is adapted to electrically contacting the bipolar plate and is supported by the support structure, wherein the support structure comprises at least a rear face which is adapted to face the fuel cell stack, a front face being opposite to the rear face, and first and second side faces, wherein the rear face comprises at least one bipolar plate housing slit which extends from the first side face to the second side face, and which is adapted to accommodate at least partly the bipolar plate, thereby defining a comb-shaped support structure with at least two teeth extend from a support basis, which are separated by the intermediately arranged bipolar plate housing sli

Abstract: A carbon monoxide oxidation device for oxidizing carbon monoxide contained in a hydrogen rich reformat gas includes a gas stream perturbation device designed as at least one propeller-shaped plate with a plate portion having a surface facing the gas stream and at least one blade which is connected to the plate portion and has a leading edge and an effluent edge, wherein a surface defined between leading edge and effluent edge is inclined in relation to the surface of the plate portion with a predetermined blade inclination angle, thereby defining at least one opening in the plate.

Abstract: A carbon monoxide oxidation device for oxidizing carbon monoxide contained in a hydrogen rich reformat gas includes a housing, wherein the housing incorporates an oxidation catalyst, which is adapted to oxidize the carbon monoxide of the reformat gas by an oxidizing agent to carbon dioxide, includes upstream of the catalyst at least one gas inlet for providing a gas stream of at least the reformat gas into the housing, includes downstream of the catalyst a gas outlet for exiting treated gas from the housing, and incorporates a gas stream perturbation device which is arranged upstream of the catalyst and which is adapted to provide a perturbation in the gas stream, wherein the gas stream perturbation device is designed as at least one propeller-shaped plate with a plate portion having a surface facing the gas stream and at least one blade which is connected to the plate portion and has a leading edge and an effluent edge, wherein a surface defined between leading edge and effluent edge is inclined in relation

Abstract: Fuel cell stack housing including at least a bottom section and a first and a second side wall, which are spaced apart by the bottom section, wherein the housing is adapted to house a fuel cell stack and includes at least one fastening element, which is engaged with the first and the second side wall, wherein at least the first side wall of the housing has a flat section and an arched section extending in direction of the second side wall, and wherein a maximum possible distance between the arched section and the bottom portion defines an inner height of the fuel cell stack housing, where in the inner height of the fuel cell stack housing is adjustable, as well as a fuel cell stack assembly including a fuel cell stack encased by such a housing.

Abstract: A fuel cell includes an electrolyte provided with electrodes in the form of an anode and a cathode on opposite sides of the electrolyte, and a system of flow ducts arranged so as to bring a first flow containing a first reactant into contact with an active surface on the anode and to bring a second flow containing a second reactant into contact with an active surface on the cathode. The system of flow ducts includes a distribution arrangement adapted to distribute a flow incoming to the active surface uniformly over an inlet region which extends along the active surface.

Abstract: A mixing device for a fuel reformer for mixing at least two fluids is provided. The mixing device includes at least a first plurality of holes which is arranged along a first row, and a second plurality of holes which is arranged along a second row. The mixing device can be used in a fuel reformer for converting hydrocarbon fuel into hydrogen rich gas by auto-thermal reaction process having a, preferably cylindrically shaped and double walled, housing with two side walls forming a reaction chamber of the fuel reformer, wherein hydrocarbon fuel and an oxidizing agent are mixed by the mixing device.

Abstract: A flow field plate for a bipolar plate or bipolar plate assembly of a fuel cell or a fuel cell stack has an electrode facing front side, a backside and at least a cooling fluid manifold for supplying cooling fluid to the flow field plate. The backside includes a cooling fluid flow field for substantially uniformly distributing the cooling fluid over the flow field plate. The flow field plate further includes a cooling fluid sub-manifold which is adapted to provide cooling fluid from the cooling fluid manifold to a cooling fluid flow field. The cooling fluid sub-manifold is fluidly disconnected from the cooling fluid flow field, a bipolar plate or bipolar plate assembly including a flow field plate, as well as a fuel cell or fuel cell stack including such a flow field plate and/or bipolar plate or such a bipolar plate assembly.