EP4200926A1 - Procédé de production d'ensemble à structure fonctionnelle pour pile à combustible et ensemble membrane-électrode - Google Patents

Procédé de production d'ensemble à structure fonctionnelle pour pile à combustible et ensemble membrane-électrode

Info

Publication number
EP4200926A1
EP4200926A1 EP21720203.5A EP21720203A EP4200926A1 EP 4200926 A1 EP4200926 A1 EP 4200926A1 EP 21720203 A EP21720203 A EP 21720203A EP 4200926 A1 EP4200926 A1 EP 4200926A1
Authority
EP
European Patent Office
Prior art keywords
electrode
membrane
substrate layer
layer
fuel cell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21720203.5A
Other languages
German (de)
English (en)
Inventor
Karsten SEIDEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Audi AG
Original Assignee
Audi AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Audi AG filed Critical Audi AG
Publication of EP4200926A1 publication Critical patent/EP4200926A1/fr
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8803—Supports for the deposition of the catalytic active composition
    • H01M4/8807—Gas diffusion layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8803—Supports for the deposition of the catalytic active composition
    • H01M4/881—Electrolytic membranes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8803—Supports for the deposition of the catalytic active composition
    • H01M4/8814—Temporary supports, e.g. decal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8825—Methods for deposition of the catalytic active composition
    • H01M4/8828—Coating with slurry or ink
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8882—Heat treatment, e.g. drying, baking
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • H01M4/9075—Catalytic material supported on carriers, e.g. powder carriers
    • H01M4/9083—Catalytic material supported on carriers, e.g. powder carriers on carbon or graphite
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • H01M4/92—Metals of platinum group
    • H01M4/925—Metals of platinum group supported on carriers, e.g. powder carriers
    • H01M4/926—Metals of platinum group supported on carriers, e.g. powder carriers on carbon or graphite
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/96—Carbon-based electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1041—Polymer electrolyte composites, mixtures or blends
    • H01M8/1053—Polymer electrolyte composites, mixtures or blends consisting of layers of polymers with at least one layer being ionically conductive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the invention relates to a method for producing a functionalized structure for a fuel cell, in particular for producing a catalyst-coated membrane (CCM for catalyst-coated membrane) or a catalyst-coated gas diffusion electrode (GDE).
  • CCM catalyst-coated membrane
  • GDE catalyst-coated gas diffusion electrode
  • the invention also relates to a membrane electrode assembly.
  • Fuel cell devices are used for the chemical conversion of a fuel with oxygen into water in order to generate electrical energy.
  • fuel cells contain a proton-conducting (electrolyte) membrane as a core component, with electrodes (anode and cathode) assigned to the two opposite bottles.
  • electroactive gas in particular hydrogen (H2) or a hydrogen-containing gas mixture
  • H2 hydrogen
  • H + an electrochemical oxidation of H2 to H + takes place at the anode with the release of electrons.
  • the electrons provided at the anode are fed to the cathode via an electrical line.
  • Oxygen or an oxygen-containing gas mixture is supplied to the cathode, so that a reduction of O2 to O 2 ' takes place while absorbing the electrons, which then becomes the product H2O together with the hydrogen protons.
  • the electrode coatings in a fuel cell must be according to their Applying to the membrane or to the gas diffusion layer to start their functional readiness can be put into a functional state by a conditioning process, wherein the dry layers are mixed with water molecules that usually flow into the coral-like channel structures of the dry layers.
  • a functionally structured structure is therefore to be understood as meaning a layer or electrode layer which provides such a "functionalization” or offers such a functional readiness.
  • the water molecule can only enter these channel structures if the outermost layer surface has a sufficient "opening" in the form of porosity or a suitable structure. Even during regular operation of the fuel cell, it must be ensured that the reactants and the product water can be transported sufficiently well through the individual layers of the fuel cell.
  • US 2010/0 285 388 A1 proposes forming point-like openings in the catalyst layer, which are produced by laser treatment.
  • DE 10 2018 207 133 A1 describes a laser treatment of a surface of a bipolar plate of a fuel cell in order to suitably set the wetting angle of the plate material for water.
  • DE 10 2016 218 868 A1 presents an electrical energy storage unit whose conductor plate is provided with a structure that was introduced into the surface using a laser.
  • the method according to the invention comprises in particular the following steps:
  • laser ablation is carried out using interference of the laser beams, which leads to particularly uniform, nanoscale structures.
  • Laser diodes are preferably used for the laser, but the use of gas lasers, e.g. a COa laser, is also possible. Lasers that emit monochromatic radiation are preferred.
  • the laser radiation is preferably pulsed or continuous with at least one of the wavelengths 266 nm, 355 nm, 532 nm or 1064 nm.
  • This deep structure leads to a network on the electrode surface and improves the channeled introduction and removal of the operating media. Hydrogen and oxygen are distributed more homogeneously and quickly over the surface via the channel structures and the product water can be discharged more quickly and with less pressure via the structures. Operating point-dependent volume flows can be changed more quickly, as a result of which the fuel cell device equipped with such a fuel cell reacts more quickly to load point change requests.
  • the structural-mechanical tensile and compressive loads on the electrode coatings can be endured during operation with a lower tendency to crack, because the structures introduced as expansion notches distribute the load peaks better over the surface and the material is not overstressed by excessive stress peaks.
  • the deep structure brought in by means of laser interference structuring can also increase the actively open electrode surface, which means that the media can penetrate into the deeper electrode layers at significantly more points or be removed from them.
  • the depth of the deep structure is, for example, 100 nm to 100 pm, preferably up to 10 pm, but particularly preferably less than 1 pm, with the individual channels of the deep structure being able to have a distance of 500 nm to 500 pm, preferably up to 50 pm, so that a deep structure in Form of a micrometer structure or submicrometer structure is present.
  • the deep structure can already be realized or formed in a membrane electrode arrangement, the production of which is based on a decal process, and it has proven to be advantageous if the electrode structuring takes place only after the hot-press transfer step to the membrane substrate layer and the subsequent removal of the carrier film.
  • the electrode is provided before the coating step in the form of an ink which comprises carbon-supported catalyst particles and at least one ionomer binder, and if the ink is applied to the substrate layer during the coating step. Since the structure depths can change when the two electrodes are applied and dried sequentially, the structuring of both electrodes should only take place after the final drying of the second electrode.
  • the electrode is dried in a drying step before the deep structure in the Electrode surface is introduced.
  • a reduction in the production time is desirable, so that a reduction in the cycle time for the production of a large number of membrane electrode assemblies or gas diffusion layers is sought. It is therefore useful and expedient if only the edge layer, ie the electrode surface that is to receive the structure, is dried before the deep structure is introduced, provided that drying takes place from the side facing away from the substrate layer.
  • it makes sense to optimize the drying process if the electrode is only partially dried in a drying step, and if the deep structure is introduced into the already dried electrode surface before the electrode has completely dried, in order to reduce the material transfers of the ink solvents to be evaporated in the drying process facilitate and for the drying medium (preferably dry hot air) to increase the contact surface of the layer to be dried.
  • the drying medium preferably dry hot air
  • the substrate layer is formed from a proton-conductive membrane material.
  • This substrate layer preferably has a multi-layer structure based on a reinforcement layer which is based on or consists of EPTFE, for example.
  • An ionomer layer for example made of PTFE or PFSA, is applied to both sides of this proton-conductive reinforcement layer, so that the proton-conductive membrane material thus has a reinforced sandwich structure.
  • the substrate layer for the electrode can also be formed from a material of a gas diffusion layer, so that the coating with the electrode forms a gas diffusion electrode which has also been provided with a deep structure.
  • the series following the process steps are reversed, so that first the deep structure is introduced into the electrode material, and then subsequently - for example in a decal process - to apply the electrode to the gas diffusion layer.
  • the deep structure is thus present on a surface of the electrode facing the gas diffusion layer.
  • the electrode is first deposited on a decal film and dried. Then the structuring takes place and in the calender step this surface is transferred to the gas diffusion layer.
  • This membrane electrode arrangement is formed in particular with a proton-conductive membrane and electrodes arranged on both sides of the membrane, with at least one, preferably both of the electrodes having a deep structuring produced by laser interference structuring on its electrode surface facing away from the membrane.
  • gas diffusion electrode made of carbonaceous material which has been coated with an electrode material comprising catalyst particles.
  • This electrode is also provided with a deep structure on its electrode surface facing the gas diffusion layer, which was introduced by means of laser interference structuring in a blasting step.
  • the gas diffusion layer is preferably produced using the method according to the invention, the order of the steps being reversed and a decal process being used to apply the electrode to the gas diffusion layer.
  • FIG. 2 shows a detailed view II, shown only schematically, of an electrode from FIG.
  • FIG. 3 shows a schematic representation of a device for producing a catalyst-coated membrane in a side view
  • FIG. 4 shows a microscopic plan view of the electrode surface of the electrodes provided with the deep structure.
  • a fuel cell 1 is shown in FIG.
  • a semipermeable electrolyte membrane 2 made of a proton-conductive membrane material is covered on a first side 3 with a first electrode 4, in this case the anode, and on a second side 5 with a second electrode 6, in this case the cathode.
  • the first electrode 4 and the second electrode 6 comprise carrier particles 14 on which catalyst particles 13 made of noble metals or mixtures comprising noble metals such as platinum, palladium, ruthenium or the like are arranged or supported. These catalyst particles 13 serve as a reaction accelerator in the electrochemical reaction of the fuel cell 1.
  • the carrier particles 14 can contain carbon. But there are also carrier particles 14 into consideration, which are formed from a metal oxide or Carbon with an appropriate coating.
  • the electrolyte membrane 2 In such a polymer electrolyte membrane fuel cell (PEM fuel cell), fuel or fuel molecules, in particular hydrogen, are split into protons and electrons at the first electrode 5 (anode).
  • the electrolyte membrane 2 lets the protons (eg H + ) through, but is impermeable to the electrons (e _ ).
  • the electrolyte membrane 2 is formed from an ionomer, preferably a sulfonated tetrafluoroethylene polymer (PTFE) or a polymer of perfluorinated sulfonic acid (PFSA).
  • PTFE sulfonated tetrafluoroethylene polymer
  • PFSA perfluorinated sulfonic acid
  • a cathode gas in particular oxygen or air containing oxygen, is provided at the cathode, so that the following reaction takes place here: O2 + 4H + + 4e"-> 2H2O (reduction/electron acceptance).
  • the electrodes 4, 6 are each assigned a gas diffusion layer 7, 8, of which one gas diffusion layer 7 is assigned to the anode and the other gas diffusion layer 8 to the cathode.
  • the anode-side gas diffusion layer 7 is assigned a flow field plate designed as a bipolar plate 9 for supplying the fuel gas, which has a fuel flow field 11 .
  • the fuel is supplied to the electrode 4 through the gas diffusion layer 7 by means of the fuel flow field 11 .
  • the gas diffusion layer 8 is assigned a flow field plate, which includes a cathode gas flow field 12 and is also designed as a bipolar plate 10 , for supplying the cathode gas to the electrode 6 .
  • the electrodes 4, 6 are formed with a plurality of catalyst particles 13, which can be formed as nanoparticles, for example as core-shell nanoparticles (“core-shell-nanoparticles”). They have the advantage of a large surface area, with the precious metal or precious metal alloy being located only on the surface, while a lower grade metal, for example nickel or copper, form the core of the nanoparticle.
  • core-shell-nanoparticles core-shell nanoparticles
  • the catalyst particles 13 are arranged or supported on a plurality of electrically conductive carrier particles 14 .
  • an ionomer binder 15 which is preferably formed from the same material as the membrane 2 .
  • This ionomer binder 15 is preferably formed as a polymer or ionomer containing a perfluorinated sulfonic acid.
  • the ionomer binder 15 is present in a porous form having a porosity greater than 30 percent.
  • a method for producing a structure for the fuel cell 1 that is structured with a deep structure 16 is described below, which leads to improved efficiency of the fuel cell 1 during operation or also during its preconditioning.
  • at least one of the two electrodes 4, 6 comprising the catalyst particles 13 is applied to a substrate layer in a coating step.
  • the deep structure 16 is introduced into an electrode surface facing away from the substrate layer in a blasting step by means of laser interference structuring.
  • the beam step using laser interference structuring is preferably carried out with laser pulses that are in the picosecond range or in the femtosecond range in order to keep the heat input into the material low and to form fixed - uniform - structures.
  • the material of the substrate layer can be one from which the gas diffusion layers 7, 8 are formed.
  • a gas diffusion electrode (GDE) formed with the deep structure 16 is created, for which purpose a decal process is preferably used to apply the electrode layer on the gas diffusion layer 7, 8 is used.
  • the material of the substrate layer can also be that from which the proton-conductive electrolyte membrane 2 is formed.
  • a membrane electrode arrangement (COM) formed with the deep structure 16 is produced in this way.
  • the proton-conducting membrane material 20 is preferably present as a multi-layer structure in which a reinforcement layer (eg made of EPTFE) is covered on both sides with an ionomer layer (eg PTFE or PFSA).
  • the method is presented—just purely by way of example—in the form of a continuous process for producing a catalyst-coated membrane.
  • a web-like proton-conductive membrane material 20 provided on a roll 22 is unrolled and first guided in a conveying direction 21 to a film cleaning unit 25 in which the membrane material 20 is cleaned dust-free and free from deposits.
  • the membrane material 20 is then transported further in the conveying direction 21 to an application tool 19 with which an ink 18 for the electrode 4, 6 is applied to at least a section, preferably completely to the membrane material 20. Downstream of the first application tool 17 in conveying direction 21, the layer thickness of the layer of ink 18 is measured by means of a layer thickness measuring device 27.
  • An intermediate drying unit 23 is provided downstream of the layer thickness measuring device 27 in conveying direction 21 in order to dry the ink 18.
  • the intermediate drying unit 23 shown here is designed to exclusively partially dry the ink 18 (provided that drying begins on the side facing away from the substrate layer) in order to form a dry edge film there before the depth structure 16 is subsequently formed in the conveying direction 21 by means of a laser device 17 by means of laser interference structuring in that electrode surface which faces away from the membrane material 20 is introduced.
  • the intermediate drying unit 23 can first dry the ink 18 completely before the deep structure 16 is introduced.
  • a further drying unit 24 is present downstream of the laser device 17 in the conveying direction 21 and is designed to completely dry the membrane material 20 coated with the ink 18 and provided with the deep structure 16 .
  • the drying unit 24 is in the conveying direction 21 a further layer thickness measuring device 27 is then connected downstream, which can measure the dried electrode film, for example by means of an optical layer thickness measuring head.
  • an X-ray fluorescence analysis unit 26 which determines the catalyst particle loading of the membrane material 20 coated with the ink 18, the proportion of supported catalyst particles 13 in the ink 18 then being able to be adjusted as a function of the measured catalyst particle loading.
  • the method can also be modified such that the substrate layer, in particular the layer of membrane material 20 or the layer of material of the gas diffusion layers 7, 8, is covered with the electrodes 4, 6 in a decal process.
  • the respective electrode 4, 6 is provided on a carrier foil before the coating step, the foil-supported electrode 4, 6 being applied to the substrate layer during the coating step. Then the carrier film is removed.
  • FIG. 4 shows the electrode surface which has been provided with deep structuring 16 .
  • the arrangement of the depressions shown is only of an exemplary nature, but it can be seen that there is a uniform distribution and homogenization of individual flow channels.
  • the depth of the individual depressions is from 100 nm to 100 ⁇ m, preferably up to 10 ⁇ m, particularly preferably less than 1 ⁇ m. They are spaced apart from one another by 500 nm to 500 ⁇ m, preferably up to 50 ⁇ m, so that the deep structure 16 is present as a micrometer structure or submicrometer structure.
  • the method according to the invention it is possible with the method according to the invention to structure the electrode surfaces very quickly provided, which leads to a better distribution of the operating media.
  • two-beam interference patterns or else three-beam interference patterns can be formed, which lead to improved channel formation, which leads to improved media exchange.
  • the catalyst-coated membrane produced according to the invention is also distinguished by improved water management.
  • membrane material e.g. web-like

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Composite Materials (AREA)
  • Inert Electrodes (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un ensemble à structure fonctionnelle pour une pile à combustible (1), comprenant les étapes suivantes : application d'au moins une électrode (4, 6) comprenant des particules de catalyseur (13) sur une couche de substrat dans une étape de revêtement, et introduction d'une structure de profondeur (16) dans une surface d'électrode opposée à la couche de substrat dans une étape de faisceau au moyen d'une structuration par interférence laser. L'invention concerne également un ensemble membrane-électrode.
EP21720203.5A 2020-10-19 2021-04-15 Procédé de production d'ensemble à structure fonctionnelle pour pile à combustible et ensemble membrane-électrode Pending EP4200926A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020127463.7A DE102020127463A1 (de) 2020-10-19 2020-10-19 Verfahren zur Herstellung eines funktionalisiert strukturierten Aufbaus für eine Brennstoffzelle und Membranelektrodenanordnung
PCT/EP2021/059774 WO2022083899A1 (fr) 2020-10-19 2021-04-15 Procédé de production d'ensemble à structure fonctionnelle pour pile à combustible et ensemble membrane-électrode

Publications (1)

Publication Number Publication Date
EP4200926A1 true EP4200926A1 (fr) 2023-06-28

Family

ID=75588198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21720203.5A Pending EP4200926A1 (fr) 2020-10-19 2021-04-15 Procédé de production d'ensemble à structure fonctionnelle pour pile à combustible et ensemble membrane-électrode

Country Status (5)

Country Link
US (1) US20230369607A1 (fr)
EP (1) EP4200926A1 (fr)
CN (1) CN116157938A (fr)
DE (1) DE102020127463A1 (fr)
WO (1) WO2022083899A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060040168A1 (en) * 2004-08-20 2006-02-23 Ion America Corporation Nanostructured fuel cell electrode
WO2008141444A1 (fr) 2007-05-18 2008-11-27 Sim Composites Inc. Membrane d'échange de proton à revêtement de catalyseur et procédé de production correspondant
DE102013207900A1 (de) * 2013-04-30 2014-10-30 Volkswagen Ag Membran-Elektroden-Einheit und Brennstoffzelle mit einer solchen
US11196054B2 (en) * 2015-10-06 2021-12-07 International Business Machines Corporation Proton exchange membrane materials
DE102016218868B4 (de) 2016-09-29 2021-01-21 Technische Universität Dresden Elektrische Energiespeichereinheit mit strukturiertem Ableiterblech und Verfahren zum Strukturieren eines Ableiterblechs einer elektrischen Energiespeichereinheit
DE102018207133A1 (de) 2018-05-08 2019-11-14 Robert Bosch Gmbh Bipolarplatte für eine Brennstoffzelle

Also Published As

Publication number Publication date
DE102020127463A1 (de) 2022-04-21
WO2022083899A1 (fr) 2022-04-28
US20230369607A1 (en) 2023-11-16
CN116157938A (zh) 2023-05-23

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