Abstract: A method for producing membrane-electrode assemblies (6) for a fuel cell unit (1) as a fuel cell stack (1), comprising the following steps: providing in each case one proton exchange membrane (5), providing in each case one first subgasket (53) as sealing layer (41), providing in each case one second subgasket (54) as sealing layer (41), arranging the in each case one proton exchange membrane (5) between the in each case first and in each case second subgasket (53, 54), connecting the in each case one proton exchange membrane (5) to the in each case first and/or in each case second subgasket (53, 54), such that in each case one layered inner region (38) of the in each case one proton exchange membrane (5) is enclosed by the in each case one first and second subgasket (53, 54) as sealing layers (41), wherein the proton exchange membranes (5), the first subgaskets (53), and the second subgaskets (54) are provided in that they are removed as proton exchange membrane strip (65), first subgasket strip (63), and se

Abstract: The invention relates to a method for producing a multi-layer, in particular five-or six-layer, membrane-electrode arrangement (1) comprising a polymer membrane (2), which arrangement has, in order to form an anode (3) and a cathode (4), a catalyst layer (5, 6) and a gas diffusion layer (7, 8) on both sides. According to the invention, the anode-side catalyst layer (5) is applied to the anode-side gas diffusion layer (7) in a wet-chemical coating method, is initially dried, and is joined to the polymer membrane (2) prior to complete drying.

Abstract: An electrolyzer system includes an anticorrosive, conductive material including a first oxide having oxygen vacancies and a formula (Ia): MgTi2O5-? (Ia), where ? is any number between 0 and 3 including a fractional part denoting the oxygen vacancies; and a second oxide having a formula (II): TiaOb (II), where 1<=a<=20 and 1<=b<=30, optionally including a fractional part, the first and second oxides of formulas (Ia) and (II) forming a polycrystalline matrix within the electrolyzer system.

Abstract: A fiber-based diffusion layer (5, 6) for an electrochemical cell (100), wherein the diffusion layer (5, 6) has a cut edge (55). The diffusion layer (5, 6) has, adjacent to the cut edge (55), an adhesive strip (60).

Abstract: A method for producing membrane-electrode assemblies (6) for a fuel cell unit (1) as a fuel cell stack (1), comprising the following steps: providing in each case one proton exchange membrane (5), providing in each case one first subgasket (53) as sealing layer (41), providing in each case one second subgasket (54) as sealing layer (41), arranging the in each case one proton exchange membrane (5) between the in each case first and in each case second subgasket (53, 54), connecting the in each case one proton exchange membrane (5) to the in each case first and/or in each case second subgasket (53, 54), such that in each case one layered inner region (38) of the in each case one proton exchange membrane (5) is enclosed by the in each case one first and second subgasket (53, 54) as sealing layers (41), wherein the proton exchange membranes (5), the first subgaskets (53), and the second subgaskets (54) are provided in that they are removed as proton exchange membrane strip (65), first subgasket strip (63), and se

Abstract: A method for electrochemical hydrogen compression. The method includes: providing hydrogen gas having a relative humidity RH of 100%; providing inert gas having a relative humidity RH of 100%; mixing the humidified hydrogen gas and the humidified inert gas; electrochemically oxidizing the hydrogen gas at an anode; transporting the protons obtained as a result of the oxidation and at least a portion of the humidified inert gas through a membrane; and electrochemically reducing the protons at a cathode into hydrogen.

Abstract: An electrolyzer system includes an anticorrosive, conductive material including a first oxide having oxygen vacancies and a formula (Ia): MgTi2O5-? (Ia), where ? is any number between 0 and 3 including a fractional part denoting the oxygen vacancies; and a second oxide having a formula (II): TiaOb (II), where 1<=a<=20 and 1<=b<=30, optionally including a fractional part, the first and second oxides of formulas (Ia) and (II) forming a polycrystalline matrix within the electrolyzer system.