EP4264713A1 - Procédé de fabrication d'une plaque bipolaire pour une cellule électrochimique, et plaque bipolaire - Google Patents

Procédé de fabrication d'une plaque bipolaire pour une cellule électrochimique, et plaque bipolaire

Info

Publication number
EP4264713A1
EP4264713A1 EP21827384.5A EP21827384A EP4264713A1 EP 4264713 A1 EP4264713 A1 EP 4264713A1 EP 21827384 A EP21827384 A EP 21827384A EP 4264713 A1 EP4264713 A1 EP 4264713A1
Authority
EP
European Patent Office
Prior art keywords
coating
carrier
flow channels
bipolar plate
fluid
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
EP21827384.5A
Other languages
German (de)
English (en)
Inventor
Mehmet OETE
Nazlim Bagcivan
Ladislaus Dobrenizki
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP4264713A1 publication Critical patent/EP4264713A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/023—Porous and characterised by the material
    • H01M8/0241—Composites
    • H01M8/0245—Composites in the form of layered or coated products
    • 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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • 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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0223—Composites
    • H01M8/0228—Composites in the form of layered or coated products
    • 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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • 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
    • H01M2008/1095—Fuel cells with polymeric electrolytes
    • 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
    • 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 bipolar plate for an electrochemical cell, a fluid-impermeable support being provided and a fluid-impermeable coating being applied to at least a partial area of a surface of the support.
  • the invention also relates to a bipolar plate for an electrochemical cell.
  • the electrochemical cells known from the prior art are usually based on an arrangement of two electrodes which are conductively connected to one another by an ion conductor.
  • Important examples of such cells are in particular electrolysis or fuel cells and accumulators for storing electrical energy.
  • a common design for electrolysis or fuel cells are polymer electrolyte membrane cells, in which the ion conductor is formed by a proton-permeable polymer membrane (PEM, "proton exchange membrane” or “polymer electrolyte membrane”), through which the hydrogen Ions migrate to the cathode and either form molecular hydrogen there (electrolytic cell) or react with the oxygen reduced at the cathode to form water (fuel cell).
  • PEM proton-permeable polymer membrane
  • the electrochemically active core of a PEM cell is the so-called membrane electrode assembly (MEA) made of a solid polymer membrane coated on both sides with electrode material.
  • MEA membrane electrode assembly
  • the membrane-electrode unit is in turn part of a sandwich structure in which the two electrodes can each rest on a current collector on which a bipolar plate is in turn arranged.
  • the bipolar plates On their surface facing the respective current collector, the bipolar plates have a flow structure (flow field) through which the starting material (eg water or hydrogen and oxygen gas) is fed into the cell.
  • the starting material eg water or hydrogen and oxygen gas
  • bipolar plates and current collectors are metal-air batteries, in which a metallic anode oxidizes with atmospheric oxygen during discharging and, conversely, a corresponding reduction reaction takes place during charging.
  • the bipolar plate can have a flow structure through which the oxygen can be supplied or removed.
  • the interconnectors bipolar plates and current collectors
  • the bipolar plates and current collectors on both sides can consist of different materials, whereby the highly corrosive operating conditions caused by the high potentials and the required high conductivity place special demands on the material .
  • a common material here is in particular titanium, which is characterized by excellent corrosion resistance, but on the other hand is associated with high production costs. Another possibility is to improve the surface properties of the bipolar plate through appropriately selected coatings.
  • Plasma-based methods for coating bipolar plates are known, for example, from DE 102014 109 321 A1 and the documents "Bipolar plate materials for polymer electrolyte membrane electrolysis” (dissertation M. Langemann, Anlagenstechnik Anlagenlich 2016) and “Development and integration of novel components for polymer electrolyte membrane (PEM ) Electrolyzers” (P. Lettenmeyer’s dissertation, University of Stuttgart 2018).
  • a high-pressure plasma jet coating process for coating electrode surfaces is known from DE 102006 031 791 A1.
  • DE 102013213 015 A1 describes a method for producing a bipolar plate, in which a layer is applied to a substrate using a plasma spraying method.
  • the task is to provide a production method for a bipolar plate that meets the special material requirements for electrochemical use and can be produced inexpensively.
  • the object is achieved by a method for producing a bipolar plate for an electrochemical cell, a fluid-impermeable support being provided and a fluid-impermeable coating, in particular a metallic or ceramic coating, being applied to at least a partial area of a surface of the support, the coating being applied by means of cold gas spraying , plating, or high velocity oxygen spray is applied.
  • the coating consists, for example, of a ductile material and is applied using cold gas spraying (“Cold Gas Dynamic Spray” or simply “Gold Spray, CGDS, CS), particularly preferably with nitrogen and/or helium as the process gas, high-velocity flame spraying, particularly preferably with air or oxygen as the fuel gas (HVAF, high-velocity air fuel or HVOF, high-velocity oxygen fuel) or by means of plating, preferably by rolling on metal layers (eg
  • the coating material is preferably melted as a powdered spray additive and applied to the surface of the carrier by means of a carrier gas, so that a dense coating with high adhesive strength and low porosity is formed there.
  • Nitrogen for example, is suitable as a carrier gas, while the thermal energy is generated by burning propane, propylene or hydrogen with the supply of oxygen (HVOF) or air (HVAF).
  • the particles of the coating material are sprayed onto the surface in a non-melted state using a carrier gas such as nitrogen and/or helium, creating an extremely dense, almost oxide-free layer with good adhesion.
  • a carrier gas such as nitrogen and/or helium
  • the surface is preferably first cleaned, prepared by brushing or grinding, and the coating material is then bonded to the carrier by rolling under high pressure.
  • the coating preferably has at least one of the following materials or their oxides or carbides: titanium (Ti), niobium (Nb), tantalum (Ta), molybdenum (Mo), tin (Sn), silver (Ag), copper (Cu) , Gold (Au), Platinum (Pt), Vanadium (V), Aluminum (AI), Ruthenium (Ru), Nickel (Ni), Silicon (Si), Tungsten (W).
  • the coating can be formed by a carbidic layer, for example made of silicon carbide (SiC) or tungsten carbide, in particular mono-tungsten carbide (WC) or a ceramic made therefrom will.
  • Various oxidic or oxide-ceramic layers are also possible, such as substoichiometric titanium oxides, doped oxides or mixed oxides.
  • the coating has titanium or a titanium alloy, the titanium alloy having at least one of the following materials or their oxides or carbides: niobium, tantalum, molybdenum, tin, silver, copper, gold, platinum, vanadium, aluminum, Ruthenium, Nickel, Silicon.
  • the fluid-impermeable support is preferably formed from an electrically conductive material.
  • the carrier is preferably made of metal, in particular of high-grade steel, or of an electrically conductive polymer material. Austenitic stainless steels, nickel-based stainless steels, copper, aluminum or else graphite, composite materials, electrically conductive thermoplastics or duroplastics are particularly suitable as the base material for the carrier.
  • a preferred embodiment of the invention provides that during the application of the coating a composition of the coating material applied to the surface and/or one or more process parameters and/or an additional spray material is/are changed.
  • a composition of the coating material applied to the surface and/or one or more process parameters and/or an additional spray material is/are changed.
  • the layer thickness increases, there is a gradual change in the components or the chemical composition of the layer, as a result of which the layer properties can be improved in a targeted manner.
  • a similar improvement can also be achieved by changing one or more process parameters or by changing the spray additive. The change can take place gradually over the layer thickness or be generated by a multi-layer application.
  • the bipolar plate In order to feed the starting materials required for the electrochemical reaction into the cell, or to remove the corresponding reaction products, the bipolar plate preferably has a profile designed as a flow structure (flow field).
  • This flow structure is preferably formed by channel-shaped depressions on the surface, which can run, for example, in a straight line or in a meandering pattern (parallel meander flow field).
  • the flow structure preferably has a plurality of separate channels which particularly preferably run parallel to one another. That manufacturing method according to the invention allows several variants to form flow channels of this type. In particular, the channels can be created before, after and during the coating process.
  • flow channels are formed in the surface of the fluid-impermeable carrier before the coating is applied.
  • the flow channels can be produced, for example, by means of compression-pull forming, in particular hydroforming.
  • a plate or sheet metal is introduced between an upper and lower tool, the upper tool having the desired profile to which the workpiece nestles under the effect of a high-pressure fluid.
  • the shaping can also take place, for example, by purely mechanical forming such as deep-drawing, embossing or extrusion. It is also conceivable to produce the channels by means of a removing process such as machining, in particular by milling.
  • the coating is preferably applied to elevations formed between the flow channels and the depressions formed by the flow channels remain uncoated. After the flow channels have been formed in the surface of the carrier, it is advantageously possible during the subsequent coating to coat only the webs (elevations) of the structures, but to leave the depressions of the individual structures uncoated.
  • the local coating can be achieved in particular by a corresponding, targeted movement of the nozzles with which the material is sprayed onto the carrier.
  • the coating material is first arranged on the partial areas of the surface to be coated and then connected to it in a form-fitting manner, e.g. by rolling.
  • a further advantageous embodiment of the invention provides that after the application of the coating, flow channels are formed in the surface of the coated carrier by means of a removing or forming process.
  • the surface of the fluid-impermeable carrier is first partially or completely coated and the flow channels are then produced on the surface by forming or material removal.
  • the shaping can be done in particular by compression molding, preferably hydroforming, embossing or pressing.
  • the channels can be formed by a removing process, in particular a machining process be removed, in particular only the sub-areas that were not covered when the coating was applied.
  • a further advantageous embodiment of the invention provides that flow channels are formed on the surface of the fluid-impermeable carrier during the application of the coating.
  • the material is applied by spraying, so that flow fields can be generated on the carrier surface through targeted guidance of the spray nozzles. This allows an almost freely selectable geometric design of the flow structure and enables an advantageous reduction in the process steps in the production of the bipolar plate.
  • the coating is preferably applied in first partial areas of the surface to form elevations and is not applied in second partial areas of the surface to form flow channels designed as depressions on the surface of the fluid-impermeable carrier.
  • the ridges of the flow fields are formed by sprayed material or by layers applied by plating, so that the uncoated areas lying between the ridges form channel-shaped depressions on the surface of the bipolar plate.
  • a first layer is applied to the surface of the fluid-impermeable carrier, with at least one further layer then being applied to partial areas of the first layer in such a way that flow channels are formed on the surface between the elevations created by the further layer of the carrier are formed.
  • the spatial contour of the surface is generated by the amount of locally applied material.
  • a relatively freely selectable height profile can be produced in layers by appropriate control of the nozzles, the indentations of which form the flow channels of the bipolar plate. The surface of the carrier can thus be protected and a surface profile created at the same time.
  • particles are applied to the surface of the fluid-impermeable carrier or of the coated fluid-impermeable carrier, the particles having an electrically conductive material and in particular the contact resistance on the surface of the coated carrier to reduce.
  • the particles are used as a spray additive on the surface of the fluid-impermeable carrier or in a Interlayer deposited, the particles are preferably not applied area-covering.
  • the particles are particularly preferably distributed sporadically on the surface after application. Partial covering of the surface with electrically conductive material can already be sufficient to significantly reduce the contact resistance of the bipolar plate.
  • the conductive particles can, for example, contain a metal such as silver or a silver alloy, or consist of carbon or carbon modifications such as graphite.
  • a binder can also be applied along with the conductive particles to bond the particles to the surface.
  • a further object of the invention is a bipolar plate produced with an embodiment of the method according to the invention.
  • the same technical effects and advantages can be achieved with the bipolar plate as have been described in connection with the method according to the invention.
  • Another aspect of the invention relates to a polymer electrolyte membrane cell with two bipolar plates, a membrane-electrode assembly and two current collectors, which are each arranged between a bipolar plate and the membrane-electrode assembly, wherein at least one of the two bipolar plates by means of an embodiment of the invention method is made.
  • the bipolar plate according to the invention can be arranged on only one side of the membrane electrode assembly or on both sides. In particular, this can be arranged on the anode side, where very high corrosion resistance is required due to the high ion concentration at the anode.
  • the PEM cell can be designed both as a PEM electrolytic cell and as a PEM fuel cell.
  • a further aspect of the invention relates to a metal-air cell, in particular a lithium-air accumulator, in which the bipolar plate according to the invention is arranged on a metallic anode.
  • a further aspect of the invention relates to an electrolyzer or a fuel cell unit with at least one cell stack formed from a plurality of cells, the cells each being configurations of the polymer electrolyte membrane cell according to the invention.
  • the cell stack preferably has two end plates with which the stack is held under mechanical compressive stress by one to ensure close contact of the components.
  • Another aspect of the invention relates to a metal-air energy storage unit, in particular a lithium-air energy storage unit, with at least one cell stack formed from a plurality of metal-air cells, the cells each being configurations of the metal-air cell according to the invention .
  • FIG. 1 shows two exemplary embodiments of an electrochemical cell in a schematic representation
  • FIG. 3 shows an exemplary embodiment of the method according to the invention in a schematic representation
  • the membrane electrode assembly (MEA) 5 is arranged centrally in the cell 2 and is adjacent to a current collector 3 and a bipolar plate 1 on each side.
  • the starting materials for the electrochemical reaction are introduced into the cell 2 via a flow structure 4 in the surface of the bipolar plates 1, which then flow through the porous current collectors 3 to the MEA 5 and are converted there into the reaction products.
  • the PEM cell 2 can be either an electrolytic cell or a fuel cell.
  • the starting material is water, which is broken down at the MEA 5 into hydrogen and oxygen by electrochemical splitting.
  • the starting materials hydrogen and oxygen are converted into water, releasing electrical energy.
  • the MEA 5 consists of a polymer-based proton-permeable membrane, which is coated on both sides with electrode/catalyst material.
  • the catalyst forms hydrogen ions at the anode, which migrate through the membrane of the MEA 5 to the opposite cathode layer and form water there in the case of the fuel cell or gas from molecular hydrogen in the case of the electrolysis cell.
  • the Current collectors 3 not only represent the transport path for the starting materials flowing towards the MEA 5 and the outflowing reaction product, but also ensure the electrical contacting of the MEA 5. Due to the high ion concentration prevail in the area around the catalyst/electrode layers of the MEA 5 highly corrosive conditions that place special demands on the material of the current collectors 3 and the bipolar plates 1.
  • At least one of the bipolar plates 1 is formed by applying a coating 8 to a fluid-impermeable carrier 6 .
  • Titanium or titanium alloys are particularly favorable here due to their good corrosion resistance.
  • flow channels 4 are formed in the surface of the bipolar plates 1, while the bipolar plate shown in FIG. 1b has no channels.
  • bipolar plates can be used in other electrochemical cells such as accumulators.
  • FIG. 2 shows various options for structuring and/or coating the bipolar plate 1 according to the invention.
  • a fluid-impermeable coating 7 is applied to a substantially flat surface of a fluid-impermeable backing 6.
  • flow structures 4 were formed in the surface of the fluid-impermeable carrier 6 before the coating, and a fluid-impermeable coating 7 was applied to the entire structured surface of the carrier 6 in a subsequent step.
  • FIG. 2a fluid-impermeable coating 7 is applied to a substantially flat surface of a fluid-impermeable backing 6.
  • flow structures 4 were formed in the surface of the fluid-impermeable carrier 6 before the coating, and a fluid-impermeable coating 7 was applied to the entire structured surface of the carrier 6 in a subsequent step.
  • FIG. 1 shows various options for structuring
  • the fluid-impermeable coating 7 is applied by means of cold gas spraying, plating, in particular roll plating, or high-velocity flame spraying, in particular with air or oxygen as the fuel gas.
  • 3 shows the various method steps 11, 12, 13 of a possible embodiment of the method 10 according to the invention for producing a bipolar plate 1.
  • a fluid-impermeable support 6, for example made of stainless steel or a polymer material is provided in the first step 11.
  • a fluid-impermeable coating 7 is deposited on a surface of the carrier 6 .
  • the coating 7 consists of a ductile material, for example titanium or a titanium alloy, which is applied by means of cold gas spraying, (roll) plating or high-velocity flame spraying (HVOF or HVAF).
  • the coating 7 is formed by a single-layer or multi-layer system, with or without flow structures 4 formed on the surface.
  • the coating 7 can be applied to the already existing flow fields 4, although it is also possible to use the structures for generating the flow field 4 without applying an area-covering coating directly to the substrate surface.
  • conductive particles (for example as a spray additive) are applied to the surface of the fluid-impermeable carrier 6 or an intermediate layer. The application preferably does not cover the entire area, so that the particles are sporadically distributed on the surface. Such a percentage coverage of the surface with electrically conductive materials can advantageously reduce the contact resistance of the bipolar plate 1 .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Fuel Cell (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

L'invention concerne un procédé (10) de production d'une plaque bipolaire (1) pour une cellule électrochimique (2), un support imperméable aux fluides (6)étant prévu et un revêtement imperméable aux fluides (7) étant appliqué sur au moins une zone partielle d'une surface du support (6), le revêtement (7) étant appliqué au moyen d'une pulvérisation de gaz froid, d'un placage, en particulier d'un revêtement en rouleau ou d'une projection à la flamme à grande vitesse, en particulier avec de l'air ou de l'oxygène en tant que gaz de combustion. L'invention concerne également une plaque bipolaire (1) pour une cellule électrochimique (2).
EP21827384.5A 2020-12-15 2021-12-07 Procédé de fabrication d'une plaque bipolaire pour une cellule électrochimique, et plaque bipolaire Pending EP4264713A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020133553.9A DE102020133553A1 (de) 2020-12-15 2020-12-15 Verfahren zur Herstellung einer Bipolarplatte für eine elektrochemische Zelle und Bipolarplatte
PCT/DE2021/100976 WO2022127984A1 (fr) 2020-12-15 2021-12-07 Procédé de fabrication d'une plaque bipolaire pour une cellule électrochimique, et plaque bipolaire

Publications (1)

Publication Number Publication Date
EP4264713A1 true EP4264713A1 (fr) 2023-10-25

Family

ID=78918733

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21827384.5A Pending EP4264713A1 (fr) 2020-12-15 2021-12-07 Procédé de fabrication d'une plaque bipolaire pour une cellule électrochimique, et plaque bipolaire

Country Status (8)

Country Link
US (1) US20240055618A1 (fr)
EP (1) EP4264713A1 (fr)
JP (1) JP2024500695A (fr)
KR (1) KR20230084227A (fr)
CN (1) CN116368647A (fr)
AU (1) AU2021398765A1 (fr)
DE (1) DE102020133553A1 (fr)
WO (1) WO2022127984A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024027873A1 (fr) * 2022-08-03 2024-02-08 Schaeffler Technologies AG & Co. KG Cellule électrochimique et utilisation
DE102022212139A1 (de) 2022-11-15 2024-05-16 Robert Bosch Gesellschaft mit beschränkter Haftung Zelle für einen Zellstapel zum elektrochemischen Wandeln von Energie und deren Herstellung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735854C2 (de) * 1997-08-19 2002-08-01 Daimler Chrysler Ag Stromkollektor für eine Brennstoffzelle und Verfahren zu seiner Herstellung
US7144648B2 (en) * 2002-11-22 2006-12-05 The Research Foundation Of State University Of New York Bipolar plate
EP1919015B1 (fr) * 2005-06-17 2013-01-09 University of Yamanashi Séparateur métallique destiné à une pile à combustible et son procédé de fabrication
DE102006031791A1 (de) 2006-07-10 2008-01-17 Daimlerchrysler Ag Beschichtungsverfahren und korrosionsschützende Beschichtung für Elektroden
DE102007032116A1 (de) * 2007-07-09 2009-01-15 Thyssenkrupp Steel Ag Bipolarplatte für eine Brennstoffzelle und Brennstoffzellen-Stack
US8148035B2 (en) 2008-05-16 2012-04-03 GM Global Technology Operations LLC Bipolar plate coating architecture for fuel cells and methods of making and using the same
DE102013213015A1 (de) 2013-07-03 2015-01-08 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur Herstellung einer Bipolarplatte und Bipolarplatte für eine elektrochemische Zelle
DE102014109321A1 (de) 2014-07-03 2016-01-07 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur Herstellung einer Bipolarplatte, Bipolarplatte für eine elektrochemische Zelle und elektrochemische Zelle
DE102016213057A1 (de) 2016-07-18 2018-01-18 Robert Bosch Gmbh Verfahren zur Herstellung einer Bipolarplatte für eine Brennstoffzelle und Brennstoffzelle
DE102017121016A1 (de) * 2017-09-12 2019-03-14 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur Herstellung eines Interkonnektors, Interkonnektor und dessen Verwendung
DE102018105115A1 (de) 2018-03-06 2019-09-12 Deutsches Zentrum für Luft- und Raumfahrt e.V. Elektrode, Zelleneinheit und Elektrolyseur
IT201800004765A1 (it) * 2018-04-20 2019-10-20 Protezione di un substrato metallico per pile di celle ad ossidi solidi mediante stampa inkjet

Also Published As

Publication number Publication date
JP2024500695A (ja) 2024-01-10
DE102020133553A1 (de) 2022-06-15
US20240055618A1 (en) 2024-02-15
CN116368647A (zh) 2023-06-30
WO2022127984A1 (fr) 2022-06-23
KR20230084227A (ko) 2023-06-12
AU2021398765A1 (en) 2023-06-15

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