EP3948996A1 - Schichtsystem, bipolarplatte mit einem solchen schichtsystem und damit gebildete brennstoffzelle - Google Patents
Schichtsystem, bipolarplatte mit einem solchen schichtsystem und damit gebildete brennstoffzelleInfo
- Publication number
- EP3948996A1 EP3948996A1 EP20708423.7A EP20708423A EP3948996A1 EP 3948996 A1 EP3948996 A1 EP 3948996A1 EP 20708423 A EP20708423 A EP 20708423A EP 3948996 A1 EP3948996 A1 EP 3948996A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- metal
- layer system
- oxide
- bipolar plate
- 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.)
- Withdrawn
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
- H01M8/0236—Glass; Ceramics; Cermets
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
- C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
- C25B11/031—Porous electrodes
- C25B11/032—Gas diffusion electrodes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
- C25B11/036—Bipolar electrodes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/055—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material
- C25B11/069—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material consisting of at least one single element and at least one compound; consisting of two or more compounds
-
- 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
- H01M8/0215—Glass; Ceramic materials
- H01M8/0217—Complex oxides, optionally doped, of the type AMO3, A being an alkaline earth metal or rare earth metal and M being a metal, e.g. perovskites
-
- 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
- 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
-
- 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
-
- 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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
-
- 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 layer system for coating a bipolar plate, comprising at least one cover layer made of tin oxide.
- the invention further relates to a bipolar plate comprising a metallic substrate and such a layer system.
- the invention further relates to a fuel cell comprising at least one such bipolar plate.
- a bipolar plate arrangement for a fuel cell unit is already known from DE 102008036849 A1, in which a coating on the cathode side is formed by a tin oxide doped with fluorine.
- WO 03/092139 A2 discloses a fuel cell with one or more bipolar plates which are coated with a corrosion-resistant metal and furthermore with an electrically conductive, polycrystalline tin oxide layer.
- the tin oxide layer can be fluorine-doped or antimony-doped.
- the corrosion-resistant metal is either a nickel alloy or is selected from the group of the metals tantalum, niobium, zirconium and hafnium.
- DE 102008055808 A1 describes a bipolar plate for a fuel cell which has a hydrophilic coating, the hydrophilic layer being formed by a metal oxide or a carbide. Silicon dioxide, hafnium dioxide, zirconium dioxide, aluminum oxide, tin oxide, tantalum pentoxide, niobium pentoxide, molybdenum dioxide, iridium dioxide, ruthenium dioxide and mixtures thereof are described as suitable metal oxides.
- the metal oxide can be mixed with N, C, Li, Ba, Pb, Mo, Ag, Au, Ru, Re, Nd, Y, Mn, V, Cr, Sb, Ni, W, Zr, Hf or mixtures thereof can be doped.
- Chromium carbide, titanium carbide, tantalum carbide, niobium carbide and zirconium carbide are mentioned as suitable carbides for forming a hydrophilic layer. It is the object of the invention to provide an improved layer system for a bipolar plate and to provide such a bipolar plate. It is also an object of the invention to propose a fuel cell with at least one such bipolar plate.
- the object is achieved for the layer system for coating a bipolar plate, comprising at least one top layer of tin oxide, in that at least one metal oxide is homogeneously dissolved in the tin oxide from the group comprising tantalum oxide, niobium oxide, titanium oxide, zirconium oxide, hafnium oxide, and where a electrical conductivity of the cover layer is greater than or equal to 10 2 S / cm.
- the layer system is characterized by high long-term stability combined with high electrical conductivity and low costs.
- the layer system ensures excellent corrosion protection for a metallic base material or substrate of a bipolar plate.
- the layer system is preferably formed by a PVD or a CVD method (PVD: Physical Vapor Deposition; CVD: Chemical Vapor Deposition).
- the cover layer has in particular a layer thickness in the range from 0.1 to 15 ⁇ m, in particular in the range from 0.5 to 3 ⁇ m.
- Cover layers which have a metal oxide in the form of tantalum oxide and / or niobium oxide in homogeneous solution in tin dioxide are particularly preferred here.
- the above-mentioned advantages are achieved here based on a mixed phase that forms in the form of alpha-tin dioxide-tantalum oxide and / or alpha-tin dioxide-niobium oxide.
- the cover layer in the homogeneous solution of tin oxide and metal oxide has a proportion of 0.1-5 at.% Tantalum and / or niobium and / or titanium and / or zirconium and / or hafnium.
- the electrical conductivity of the mixed phase formed has a maximum in this area. It is particularly preferred if the cover layer is doped with iridium and / or ruthenium.
- the iridium and / or ruthenium is preferably present in the top layer in a concentration in the range from 10 -4 at.% To 0.1 at.%. This increases the electrical conductivity of the top layer even further.
- an adhesive layer is also present in addition to the cover layer, the adhesive layer having a layer thickness in the range from 1 nm to 300 nm.
- the adhesive layer is preferably formed to contain at least one element from the group comprising titanium, tantalum, niobium, zirconium, hafnium.
- the adhesive layer is intended to improve the adhesion of the cover layer to the base material or substrate of a bipolar plate. There is preferably between the cover layer and the adhesive layer
- At least one intermediate layer made of a metal nitride or
- the intermediate layer should in particular ensure adhesion between that of the adhesive layer and the cover layer.
- the metal carbide and / or the metal nitride and / or the metal boride has at least one metal from the group comprising titanium, tantalum, niobium, zirconium, and hafnium.
- the at least one metal is preferably present in a concentration in the range from 30 to 56 at.% In the metal carbide and / or metal nitride and / or metal boride.
- metal borides have the highest electrical conductivity. It is therefore advantageous if the at least one intermediate layer contains boron.
- the boron serves here to increase conductivity and thus in particular to adjust the electrical conductivity of the intermediate layer (s).
- a layer thickness of an individual intermediate layer is preferably selected in the range from 0.1 to 0.5 ⁇ m.
- the cover layer is doped with fluorine. This leads to a stabilization and further hydrophobization of the cover layer and increases the long-term stability of the layer system significantly. It can therefore not only be used with advantage on a cathode side of a bipolar plate, i.e. under anodic oxidation conditions, but can also be used on an anode side of the bipolar plate, since the formation of superficial hydroxide compounds is prevented, which would have a negative, ie increasing Influence on a surface resistance of the top layer.
- Doping the cover layer with fluorine in the range from 0.5 to 5 at .-% has proven useful.
- the cover layer is further doped with nitrogen and / or carbon.
- Doping the cover layer with nitrogen in the range from 0 to 10 at.% And / or with carbon in the range from 0 to 10 at.% has proven useful.
- the layer system according to the invention, comprising the adhesive layer, at least one intermediate layer and the cover layer preferably has a total thickness in the range from 0.1 to 20 ⁇ m.
- the following layer systems have proven to be advantageous for coating a metallic bipolar plate, in particular made of austenitic steel:
- Adhesive layer - Intermediate layer: - Top layer: SnO2 - 0.95 at .-% Ta 2 O 5
- Adhesive layer niobium
- Adhesive layer tantalum
- Cover layer SnO2-x Fx - 0.95 at .-% Ta 2 O 5
- Adhesive layer niobium
- Adhesive layer TiNb
- Cover layer SnO2-x Fx - 0.2 at .-% Ta 2 O 5 - 1 at .-% Nb 2 O 5
- a bipolar plate with an anode side and a cathode side comprising a substrate and a layer system according to the invention, with a structure of the bipolar plate in the following order:
- Top layer This is preferably a bipolar plate with a metallic substrate or a metallic carrier plate, in particular made of austenitic stainless steel.
- a carrier plate can be designed in one or more parts.
- the layer system is preferably arranged on the cathode side of the bipolar plate, but can also be used on the anode side of the bipolar plate with appropriate fluorination and, if necessary, further doping with nitrogen and / or carbon.
- the object is also achieved for a fuel cell or an electrolyser, this being designed to include at least one bipolar plate according to the invention.
- the fuel cell is designed in particular as an oxygen-hydrogen or air-hydrogen fuel cell. It has proven itself here if the fuel cell comprises at least one polymer electrolyte membrane.
- Table 1 shows a comparison of various outer layers of the layer system according to the invention.
- FIGS. 1 to 5 are intended to explain, by way of example, a layer system according to the invention and a bipolar plate coated therewith and a fuel cell.
- FIG. 1 shows a bipolar plate having the layer system
- FIG. 3 shows a section III-III through the arrangement according to FIG. 1;
- FIG. 5 shows a cross section through a layer system in an enlarged manner
- FIG. 1 shows a bipolar plate 2 with a layer system 1, which here has a metallic substrate or a metallic carrier plate 2a made of stainless steel.
- the layer system 1 covers the bipolar plate 2 at least on its cathode side.
- the layer system 1 has a total thickness in the range from 100 nm to 20 ⁇ m.
- the bipolar plate 2 has an inflow area 3a with openings 4 and an outlet area 3b with further openings 4 'which are used to supply a fuel cell with process gases and to discharge reaction products from the fuel cell.
- the bipolar plate 2 also has a gas distribution structure 5 on each side, which is provided for contact with a polymer electrolyte membrane 7 (see FIG. 2).
- FIG. 1 shows a bipolar plate 2 with a layer system 1, which here has a metallic substrate or a metallic carrier plate 2a made of stainless steel.
- the layer system 1 covers the bipolar plate 2 at least on its cathode side.
- the layer system 1 has a total thickness in the range from 100
- FIG. 2 schematically shows a fuel cell system 100 comprising a plurality of fuel cells 10.
- Each fuel cell 10 comprises a polymer electrolyte membrane 7 which is adjacent on both sides of bipolar plates 2, 2 '.
- the same reference symbols as in FIG. 1 identify the same elements.
- FIG. 3 shows a section III-III through the bipolar plate 2 according to FIG. 1.
- the same reference symbols as in FIG. 1 identify the same elements.
- the support plate 2a made of stainless steel can be seen, which can be constructed in one or more parts.
- a gas diffusion layer 6 is arranged between the carrier plate 2a and the layer system 1. It can also be seen that a further coating 8 on the anode side the carrier plate 2a is present. This can correspond to the layer system 1.
- a coating 8 can be provided which is designed according to DE102016202372 A1.
- a further gas diffusion layer 6 ' is located between the coating 8 and the carrier plate 2a.
- the gas diffusion layers 6, 6 ' are designed to be electrically conductive, in particular formed from a fiber mat made of carbon material.
- FIG. 4 shows a section through two bipolar plates 2, 2 ′ and a polymer electrolyte membrane 7 according to FIG. 2 arranged between them, which together form a fuel cell 10.
- the same reference symbols as in FIGS. 1 to 3 identify the same elements.
- the layer system 1 of a first bipolar plate with a carrier plate 2a as cathode and, on the other hand, the coating 8 of a second bipolar plate with a further carrier plate 2a 'as anode are arranged adjacent to the polymer electrolyte membrane 7.
- the gas diffusion layers 6, 6 ' can be seen.
- FIG. 5 shows a cross section through the layer system 1 according to FIG. 1. It can be seen that a cover layer 1a, an intermediate layer 1b and an adhesive layer 1c are present.
- the adhesive layer 1c is located on a side B of the layer system 1, which is arranged facing the carrier plate 2a of the bipolar plate 2.
- the cover layer 1 a is located on a side A of the layer system 1 which is arranged facing away from the carrier plate 2 a of a bipolar plate 2.
- the layer system 1 can also have a plurality of intermediate layers 1b.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Composite Materials (AREA)
- Fuel Cell (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019108660.4A DE102019108660A1 (de) | 2019-04-03 | 2019-04-03 | Schichtsystem, Bipolarplatte mit einem solchen Schichtsystem und damit gebildete Brennstoffzelle |
| PCT/DE2020/100126 WO2020200353A1 (de) | 2019-04-03 | 2020-02-21 | Schichtsystem, bipolarplatte mit einem solchen schichtsystem und damit gebildete brennstoffzelle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3948996A1 true EP3948996A1 (de) | 2022-02-09 |
Family
ID=69740079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20708423.7A Withdrawn EP3948996A1 (de) | 2019-04-03 | 2020-02-21 | Schichtsystem, bipolarplatte mit einem solchen schichtsystem und damit gebildete brennstoffzelle |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20230231151A1 (de) |
| EP (1) | EP3948996A1 (de) |
| JP (1) | JP7362768B2 (de) |
| KR (1) | KR20210148090A (de) |
| CN (1) | CN113491025A (de) |
| DE (1) | DE102019108660A1 (de) |
| WO (1) | WO2020200353A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4189144A4 (de) | 2020-07-27 | 2024-10-16 | Ohmium International, Inc. | Poröse gasdiffusionsschicht für elektrolyseur und verfahren zur herstellung davon |
| US12308484B2 (en) | 2020-09-04 | 2025-05-20 | Infinity Fuel Cell And Hydrogen, Inc. | Methods of manufacturing a gas diffusion layer and an electrochemical cell incorporating the same |
| TW202314044A (zh) * | 2021-06-09 | 2023-04-01 | 美商歐米恩國際公司 | 具有氧化穩定及導電塗層之電解槽雙極板及多孔氣體擴散層,及其製備方法 |
| CN120476487A (zh) * | 2023-03-03 | 2025-08-12 | 舍弗勒技术股份两合公司 | 用于电化学电芯的构件以及氧化还原液流电芯、燃料电芯和电解槽 |
| DE102024200775A1 (de) * | 2024-01-29 | 2025-07-31 | Robert Bosch Gesellschaft mit beschränkter Haftung | Zelle für einen Zellstapel zum elektrochemischen Wandeln von Energie und deren Herstellung |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003228663A1 (en) | 2002-04-26 | 2003-11-10 | President And Fellows Of Harvard College | Durable bipolar plates for fuel cells |
| WO2005020346A2 (en) * | 2003-06-27 | 2005-03-03 | Ultracell Corporation | Micro fuel cell architecture |
| US7879389B2 (en) * | 2006-06-27 | 2011-02-01 | GM Global Technology Operations LLC | Low-cost bipolar plate coatings for PEM fuel cell |
| US20080124587A1 (en) * | 2006-11-27 | 2008-05-29 | Gm Global Technology Operations, Inc. | Electrically conductive, hydrophilic and acid resistant film |
| US8389047B2 (en) * | 2006-12-21 | 2013-03-05 | GM Global Technology Operations LLC | Low-cost hydrophilic treatment method for assembled PEMFC stacks |
| US9011667B2 (en) * | 2007-09-27 | 2015-04-21 | GM Global Technology Operations LLC | Nanotube assembly, bipolar plate and process of making the same |
| US8053133B2 (en) | 2007-11-07 | 2011-11-08 | GM Global Technology Operations LLC | Bipolar plate hydrophilic treatment for stable fuel cell stack operation at low power |
| US9136545B2 (en) * | 2008-02-27 | 2015-09-15 | GM Global Technology Operations LLC | Low cost fuel cell bipolar plate and process of making the same |
| DE102008036849A1 (de) | 2008-08-07 | 2010-02-11 | Elringklinger Ag | Bipolarplattenanordnung für eine Brennstoffzelleneinheit und Verfahren zum Herstellen einer Bipolarplattenanordnung |
| JP5708199B2 (ja) * | 2010-04-23 | 2015-04-30 | Jfeスチール株式会社 | 固体高分子形燃料電池のセパレータ用金属板 |
| JP2013077436A (ja) * | 2011-09-30 | 2013-04-25 | Sumitomo Chemical Co Ltd | セパレータおよび燃料電池 |
| JP5928364B2 (ja) * | 2012-04-25 | 2016-06-01 | Jfeスチール株式会社 | 固体高分子形燃料電池のセパレータ用金属板 |
| EP2770564B1 (de) * | 2013-02-21 | 2019-04-10 | Greenerity GmbH | Barriereschicht für Korrosionsschutz in elektrochemischen Vorrichtungen |
| DE102013209226B4 (de) * | 2013-03-04 | 2020-01-02 | Ihp Gmbh - Innovations For High Performance Microelectronics / Leibniz-Institut Für Innovative Mikroelektronik | Einzelelektrodenplatte zur Verwendung in einer Brennstoffzelle |
| US10003089B2 (en) * | 2015-02-11 | 2018-06-19 | Ford Global Technologies, Llc | Multilayer coating for corrosion resistant metal bipolar plate for a PEMFC |
| US10516174B2 (en) * | 2015-08-12 | 2019-12-24 | Jfe Steel Corporation | Metal sheet for separators of polymer electrolyte fuel cells, and metal sheet for manufacturing the same |
| DE102016202372A1 (de) | 2016-02-17 | 2017-08-17 | Friedrich-Alexander-Universität Erlangen-Nürnberg | Schicht und Schichtsystem, sowie Bipolarplatte, Brennstoffzelle und Elektrolyseur |
| JP2017152246A (ja) * | 2016-02-25 | 2017-08-31 | ダイハツ工業株式会社 | 燃料電池用ガス拡散シートおよび燃料電池 |
| JP6789490B2 (ja) * | 2016-04-27 | 2020-11-25 | 株式会社Flosfia | 燃料電池用セパレータ及びその製造方法 |
| JP6870470B2 (ja) * | 2017-05-19 | 2021-05-12 | トヨタ自動車株式会社 | 燃料電池用セパレータ |
| JP7529403B2 (ja) * | 2017-06-13 | 2024-08-06 | ザ ボード オブ トラスティーズ オブ ザ レランド スタンフォード ジュニア ユニバーシティー | 増大した触媒活性を備えた電気化学触媒 |
| JP6947009B2 (ja) * | 2017-12-22 | 2021-10-13 | トヨタ自動車株式会社 | 燃料電池用セパレータ及び燃料電池 |
-
2019
- 2019-04-03 DE DE102019108660.4A patent/DE102019108660A1/de not_active Ceased
-
2020
- 2020-02-21 JP JP2021558885A patent/JP7362768B2/ja active Active
- 2020-02-21 US US17/601,175 patent/US20230231151A1/en not_active Abandoned
- 2020-02-21 EP EP20708423.7A patent/EP3948996A1/de not_active Withdrawn
- 2020-02-21 CN CN202080014289.6A patent/CN113491025A/zh active Pending
- 2020-02-21 WO PCT/DE2020/100126 patent/WO2020200353A1/de not_active Ceased
- 2020-02-21 KR KR1020217027501A patent/KR20210148090A/ko not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JP7362768B2 (ja) | 2023-10-17 |
| WO2020200353A1 (de) | 2020-10-08 |
| DE102019108660A1 (de) | 2020-10-08 |
| US20230231151A1 (en) | 2023-07-20 |
| KR20210148090A (ko) | 2021-12-07 |
| CN113491025A (zh) | 2021-10-08 |
| JP2022527340A (ja) | 2022-06-01 |
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