WO2004047211A1 - Ensemble electrode a membrane pour piles a combustible et son procede de fabrication - Google Patents
Ensemble electrode a membrane pour piles a combustible et son procede de fabrication Download PDFInfo
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- WO2004047211A1 WO2004047211A1 PCT/CN2002/000830 CN0200830W WO2004047211A1 WO 2004047211 A1 WO2004047211 A1 WO 2004047211A1 CN 0200830 W CN0200830 W CN 0200830W WO 2004047211 A1 WO2004047211 A1 WO 2004047211A1
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- conductive sheet
- porous conductive
- proton exchange
- layer
- exchange membrane
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- 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]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
- B42F15/00—Suspended filing appliances
- B42F15/06—Suspended filing appliances for hanging large drawings or the like
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- 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
- H01M4/8605—Porous electrodes
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the invention relates to the field of fuel cells, in particular to a fuel cell membrane electrode and a method for manufacturing the same. Background technique
- a fuel cell is a device that directly converts the chemical energy of a fuel into electrical energy.
- the main difference between a fuel cell and a traditional battery is that its fuel and oxidant are stored outside the battery. As long as the fuel and oxidant are supplied, the battery can continue to work.
- Proton exchange membrane fuel cells have the advantages of low operating temperature, fast startup, high power density and high energy density, no pollution to the environment, and no noise.
- a proton exchange membrane fuel cell is generally composed of a proton exchange membrane 24 ', a catalytic layer 25' and a gas diffusion layer 26 'on both sides thereof, and a bipolar plate 10' with a gas conducting channel. It uses a proton exchange membrane 24 'as an electrolyte.
- the proton exchange membrane 24' simultaneously prevents the reaction gas from mixing on both sides.
- a catalytic layer 25 ' directly contacting the membrane and a gas diffusion layer 26 on the outside. '.
- the proton exchange membrane 24 ', the catalytic layer 25', and the gas diffusion layers 26 'on both sides thereof are collectively called a membrane electrode, which is a core component of a proton exchange membrane fuel cell.
- the working principle of a fuel cell is this. Fuel such as hydrogen is decomposed into protons and electrons in the anode catalytic layer. Protons (hydrogen ions) reach the positive electrode through the membrane, and the electrons reach the cathode via an external circuit to react with an oxidant such as oxygen to produce water.
- the individual monolithic batteries are usually connected in series to form a battery stack to obtain a higher voltage.
- the adjacent batteries may be connected through a bipolar plate, that is, the bipolar plate also serves as a cathode and an anode of the adjacent battery, or may be connected through an external circuit.
- the battery stack there must be a flow field that distributes the two reactive gases. If necessary, the flow field needs to be cooled to dissipate excess heat generated during the operation of the battery stack, as well as current collectors, seal assemblies and other accessories.
- a bipolar plate must meet the following technical requirements: 1. Separate the oxidant and the reducing agent 2. It must be a good conductor of electricity because it has a current-collecting effect; 3. Because the electrolyte of the existing fuel cell is acid or alkali, and The electrode plate must have anti-corrosion ability under the working potential. 4. The flow field of the reaction gas must be processed or placed on both sides of the bipolar plate. 5. It should be a good heat conductor to ensure the temperature of the battery pack. Implementation of uniform distribution and heat distribution scheme. This makes the processing of bipolar plates difficult, long, and costly, and the volume specific power and weight specific power are low, which cannot meet the high volume specific weight and weight specific power of small fuel cells, especially portable fuel cells. Claim.
- proton exchange membranes it is not only a separator material, but also a substrate for electrolytes and electrode active materials. It is an ion-conducting polymer film with selective permeability. It must have good ionic conductivity to reduce battery internal resistance, high enough mechanical strength and structural strength, stability to oxidation, reduction, and hydrolysis.
- the permeability of substances (such as hydrogen, oxygen, and methanol) in the membrane is as small as possible, and water molecules are sufficient in a direction parallel to the surface of the membrane Large diffusion speeds, surface properties suitable for binding with catalysts, etc.
- the perfluorosulfonic acid membrane is the most widely used proton exchange membrane electrolyte. It was successfully developed by Du Pont, with Naf ion as its trademark, but the current cost still cannot meet the requirements for mass production.
- the existing fuel cell is composed of a relatively independent proton exchange membrane 24 ', a catalytic layer 25' and a gas diffusion layer 26 'on both sides thereof, and a bipolar plate 10' with a gas conducting channel, a certain amount of energy must be applied. The pressure presses them together to reduce the interface contact between the catalytic layer 25 'and the proton exchange membrane 24', the gas diffusion layer, 26 'and the bipolar plate 10', so as to improve the conductivity of the electrons and the water and heat transfer. An additional device is added, which increases the complexity of assembly and increases the cost of the fuel cell. Summary of the Invention
- An object of the present invention is to provide a fuel cell membrane electrode, which has a lower material cost, and a fuel cell assembled with the membrane electrode has a higher weight and volume specific power, is convenient to assemble, and is easy to process.
- the object of the present invention is also to provide a method for manufacturing a fuel cell membrane electrode, which uses lower cost materials, reduces the manufacturing cost, and increases the weight and volume specific power of the fuel cell.
- a fuel cell membrane electrode includes at least a catalytic layer and a proton exchange membrane. At least the catalytic layer and the proton exchange membrane are composited on a porous conductive sheet.
- the conductive sheet conducts current to the external circuit, and the composite layer satisfies the following conditions: (1) The catalytic layers are located on both sides of the proton exchange membrane and are in contact with the proton exchange membrane; (2) The porous conductive sheet is located on the proton exchange membrane. On both sides.
- the invention also provides a method for manufacturing a fuel cell membrane electrode, which includes at least the following steps:
- At least a catalytic layer and a proton exchange membrane are layered on the porous conductive sheet to ensure close contact between the layers and the proton exchange membrane is at least partially in contact with the catalytic layer on both sides.
- gas diffusion layer may be combined with the catalytic layer and the proton exchange membrane on the porous conductive sheet.
- the layered composite of the gas diffusion layer, the catalytic layer, the proton exchange membrane and the porous conductive sheet may include the following steps:
- step (B3) The two finished products of step (B2) are bonded together with the proton exchange membrane end as a bonding surface to form a membrane electrode unit.
- the metal foil used as the base is processed with through-holes of different sizes and specifications.
- the opening rate accounts for 10% to 90% of the total area of the base.
- Surface treatment and ceramic treatment are performed on the metal foil to improve its performance. Corrosion resistance and conductivity.
- Metal foils can be metals, such as titanium, nickel, stainless steel, niobium, aluminum, tantalum, and copper, and have a thickness of 1 ⁇ m to 100 ⁇ m. Opening holes in metal foils can be processed by laser processing, mechanical processing, electrochemical or chemical etching, and other methods of processing micropores.
- the shape of the holes can be any conceivable geometry, and ultimately guarantee that the opening ratio accounts for 10% to 90% of the total area of the substrate.
- the gas diffusion layer of a fuel cell membrane electrode is an electronically conductive porous material, which is a mixture of an electronically conductive material, a pore-forming component, and a binder.
- Electronic conductive materials can be carbon powder, metal powder and gold with high conductivity It is a ceramic powder, etc .
- the pore-forming component is a loose structured particle, which can be carbon powder and carbon fiber
- the binder is a polymer, which can be a partially or fully fluorinated carbon polymer, and Other polymers with hydrophobic properties.
- the catalytic layer of a fuel cell membrane electrode is composed of a conductive porous material containing platinum and a platinum alloy, and can be divided into two types: hydrophobic performance and hydrophilic performance.
- the hydrophobic catalytic layer refers to a conductive porous material formed by using at least one hydrophobic polymer such as polytetrafluoroethylene and other polymers as a binder and using platinum or a platinum alloy as a catalyst.
- the platinum alloy can be attached to a carrier carbon or other conductive powder.
- Hydrophilic catalytic layer refers to a conductive material formed by using at least a hydrophilic polymer such as a perfluorosulfonic acid resin as a binder and using platinum or a platinum alloy as a catalyst. Platinum or a platinum alloy can be attached to Carrier carbon or other conductive powder.
- the ion-conducting polymer of the fuel cell membrane electrode can be any kind of ion-conducting polymer that conducts protons (H + ). It can be a finished commercial membrane, such as Nafion, or a perfluorosulfonic acid ion-exchange membrane resin. After melting, apply on the surface of the catalytic layer.
- the effects of the present invention are as follows. First, since the present invention directly composites the proton exchange membrane and the catalytic layer on the porous conductive sheet, the conductive current is conducted to the external circuit by the porous conductive sheet, which avoids the difficulty of adopting processing technology, long time and high cost.
- the bipolar plate is compact in size and light in weight, improves the weight and volume specific power of the fuel cell, and reduces costs.
- an ion-conducting polymer can be used, it can be melt-coated and coated on the surface of a catalytic layer or directly on a porous conductive sheet to form a film as an electrolyte, which avoids the use of expensive finished product quality proton exchange membranes and greatly reduces the fuel cell. the cost of.
- FIG. 1 is a schematic structural diagram of a membrane electrode of a fuel cell according to Embodiment 1 of the present invention
- FIG. 1A is a schematic view of a through-hole structure on a porous conductive sheet according to the present invention
- FIG. 1B is a schematic view of another through hole structure on the porous conductive sheet of the present invention.
- FIG. 1C is a schematic view of another through-hole structure on the porous conductive sheet of the present invention.
- FIG. 2A is a schematic diagram of the manufacturing steps of the membrane electrode according to the embodiment 1 of the present invention.
- FIG. 2B is a schematic diagram of another manufacturing step of the membrane electrode according to the embodiment 1 of the present invention.
- FIG. 3 is a schematic structural diagram of a membrane electrode according to a second embodiment of the present invention.
- FIG. 4A is a schematic diagram of manufacturing steps of a membrane electrode according to Embodiment 2 of the present invention.
- 4B is a schematic diagram of another manufacturing step of the membrane electrode according to the embodiment 2 of the present invention.
- FIG. 5 is a schematic structural diagram of Embodiment 3 of a membrane electrode of the present invention.
- FIG. 6A is a schematic diagram of manufacturing steps of a membrane electrode according to Embodiment 3 of the present invention.
- 6B is a schematic diagram of another manufacturing step of the membrane electrode according to Embodiment 3 of the present invention
- 7 is a schematic structural diagram of Embodiment 4 of a membrane electrode of the present invention
- FIG. 8A is a schematic diagram of a manufacturing step of a membrane electrode according to Embodiment 4 of the present invention
- FIG. 8B is a schematic diagram of another manufacturing step of a membrane electrode according to Embodiment 4 of the present invention
- FIG. 9 is a schematic structural diagram of a membrane electrode according to Embodiment 5 of the present invention
- FIG. 10A is a schematic diagram of a manufacturing step of a membrane electrode according to Embodiment 5 of the present invention
- FIG. 10B is a schematic diagram of another manufacturing step of a membrane electrode according to Embodiment 5 of the present invention
- FIG. 11 is a schematic structural diagram of Embodiment 6 of a membrane electrode according to the present invention
- FIG. 12A is a schematic diagram of the manufacturing steps of the membrane electrode in Embodiment 6 of the present invention
- FIG. 12B is another schematic diagram of the manufacturing steps of the membrane electrode in Embodiment 6 of the present invention
- FIG. 13 is a schematic structural diagram of the membrane electrode Embodiment 7 of the present invention
- FIG. 14A is a schematic diagram of the manufacturing steps of the membrane electrode of Embodiment 7 of the present invention
- FIG. 14B is another schematic diagram of the manufacturing steps of the membrane electrode of Embodiment 7 of the present invention
- FIG. 15 is a schematic structural diagram of Embodiment 8 of the membrane electrode of the present invention
- FIG. 16A is a schematic diagram of the manufacturing steps of the membrane electrode of Embodiment 8 of the present invention
- FIG. 16B is another schematic diagram of the manufacturing steps of the membrane electrode of Embodiment 8 of the present invention
- FIG. 17 is a schematic structural diagram of Embodiment 9 of the membrane electrode of the present invention
- FIG. 18A is a schematic diagram of the manufacturing steps of the membrane electrode of Embodiment 9 of the present invention
- FIG. 18B is another schematic diagram of the manufacturing steps of the membrane electrode of Embodiment 9 of the present invention
- FIG. 19 is a schematic structural diagram of Embodiment 10 of the membrane electrode of the present invention
- FIG. 20A is a schematic diagram of the manufacturing steps of the membrane electrode of Embodiment 10 of the present invention
- FIG. 20B is another schematic diagram of the manufacturing steps of the membrane electrode of Embodiment 10 of the present invention
- FIG. 21 is a schematic structural diagram of Embodiment 11 of the membrane electrode of the present invention
- FIG. 22A is a schematic diagram of the manufacturing steps of the membrane electrode according to Embodiment 11 of the present invention
- FIG. 22B is another schematic diagram of the manufacturing steps of the membrane electrode according to Embodiment 11 of the present invention
- FIG. 23 is a schematic structural diagram of Embodiment 12 of the membrane electrode according to the present invention.
- FIG. 24A is a schematic diagram of the manufacturing steps of the membrane electrode in Embodiment 12 of the present invention
- FIG. 24B is another schematic diagram of the manufacturing steps of the membrane electrode in Embodiment 12 of the present invention
- FIG. 25 is a schematic structural diagram of Embodiment 13 of the membrane electrode of the present invention
- FIG. 26A is a schematic diagram of the manufacturing steps of the membrane electrode of Embodiment 13 of the present invention
- FIG. 26B is another schematic diagram of the manufacturing steps of the membrane electrode of Embodiment 13 of the present invention
- FIG. 27 is a schematic structural diagram of Embodiment 14 of the membrane electrode of the present invention
- FIG. 28A is a schematic diagram of manufacturing steps of a membrane electrode according to Embodiment 14 of the present invention
- FIG. 28B is another schematic diagram of manufacturing steps of a membrane electrode according to Embodiment 14 of the present invention
- FIG. 29 is a schematic structural diagram of Embodiment 15 of a membrane electrode according to the present invention
- Figure 30A is a schematic view of a manufacturing step of a membrane electrode of Embodiment 15 of the present invention
- Figure 30B is a schematic view of another manufacturing step of a membrane electrode of Embodiment 15 of the present invention
- FIG. 31 is a schematic diagram of a structure of an existing fuel cell membrane electrode. detailed description
- the present invention provides a fuel cell membrane electrode, which includes at least a catalytic layer 2 and a proton exchange membrane 1. At least the catalytic layer 2 and the proton exchange membrane 1 are composited on a porous conductive sheet 3.
- the conductive sheet 3 conducts current to the external circuit.
- the composite layer should meet the following conditions: (1) The catalytic layer 2 is located on both sides of the proton exchange membrane 1 and is in contact with the proton exchange membrane 1 Contact connection; (2) The porous conductive sheet 3 is located on both sides of the proton exchange membrane 1, respectively.
- the fuel cell using the present invention is compact and light in weight, increases the weight and volume specific power of the fuel cell, and reduces cost.
- the above method for manufacturing a fuel cell membrane electrode includes at least the following steps ⁇
- At least the catalytic layer 2 and the proton exchange membrane 1 are laminated on the porous conductive sheet 3 to ensure that the layers are in close contact with each other, and that both sides of the proton exchange membrane 1 are in contact with the catalytic layer 2 at least in part.
- the battery does not need to apply a certain pressure to reduce the interface contact and improve the electron conductivity and water-heat transmission, so that some auxiliary devices are reduced. And reduce the complexity of assembly and reduce costs.
- the porous conductive sheet 3 may be a metal foil, carbon paper, or carbon cloth provided with a plurality of through holes 31.
- the metal of the metal foil may be titanium, nickel, stainless steel, niobium, aluminum, tantalum, copper or alloy.
- the thickness of the metal foil is from 1 ⁇ m to 100 ⁇ m.
- the porous conductive sheet 1 should be subjected to a surface treatment and a ceramic treatment to improve its anti-acid corrosion performance and stable conductive performance, so as to ensure a long working life and stable working performance of the battery. Since the adopted ceramic anticorrosive technology is outside the scope of this patent application, it will not be repeated here.
- the through-holes 31 can be Various shapes such as circles, rectangles, and polygons.
- the porous conductive sheet 3 composed of carbon paper or carbon cloth may also be used. Since the carbon paper and the carbon cloth have the through holes 31 formed by meshes, it is not necessary to perform a hole opening operation.
- the opening ratio of the through holes 31 on the porous conductive sheet 3 can be adjusted between 10% and 90%. Generally, at the same opening ratio, the more openings, the smaller the pore size, and the easier it is to form a film on the foil.
- the aperture ratio and shape of the through-hole 31 can be determined comprehensively to meet the needs of various practical use situations.
- step (B) the layered composite of the catalytic layer 2, the proton exchange membrane 1 and the porous conductive sheet 3 can be composited by the following steps ⁇
- step (B3) The two finished products in step (B2) are bonded together with one end of the proton exchange membrane as a bonding surface to form a membrane electrode unit.
- This method can use an ion-conducting polymer, and melt it and apply it on the porous conductive sheet 3 to directly form a film as an electrolyte, which avoids the use of expensive finished product quality exchange membranes and greatly reduces the cost of fuel cells. .
- the layered composite of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 can also be composited using the following steps ⁇
- step (B2) Combining the two finished products of step (B1) with the proton exchange membrane 1 between the two manufactured products by hot pressing or fusion bonding, and ensuring the catalysis of the proton exchange membrane 1 and its two sides
- the layers 2 are in contact with each other to form a single membrane electrode.
- the arrangement order of the catalytic layer 2 of the membrane electrode, the proton exchange membrane 1 and the porous conductive sheet 3 is: the catalytic layer 2, the porous conductive sheet 3, the proton exchange membrane 1, and the porous layer.
- the conductive sheet 3 and the catalytic layer 2; the catalytic layers 2 on both sides of the porous conductive sheet 3 and the proton exchange membrane 1 are in contact with each other through the through holes 31 in the porous conductive sheet 3.
- the layered composite of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 may include the following steps:
- the catalyst is made into a solution, and the porous conductive sheet 2 is coated on one side of the substrate to form a catalyst layer 2;
- the ion-conducting polymer capable of conducting protons is made into a solution, and is coated on the other side of the porous conductive sheet 3 to form a proton exchange membrane 1.
- the composite catalytic layer 2 on the other side of the porous conductive sheet 3 passes through the porous conductive layer.
- the through hole 31 on the sheet 3 is in contact with the proton exchange membrane 1;
- step (B3) The finished product of the above step (B2) is bonded together with the end coated with the ion conductive polymer as a bonding surface to form a membrane electrode unit.
- the catalyst layer 2 in the above step (B1) can be coated with the through holes 31 of the porous conductive sheet 3.
- the catalyst in the through holes 31 is coated. It is in contact with the proton exchange membrane 1 so as to achieve the contact connection between the catalytic layer 2 and the proton exchange membrane 1.
- the catalyst layer 2 in this step (B1) may also be coated with a continuous layer on the through holes 31 of the porous conductive sheet 3.
- step (B2) After the proton exchange membrane 1 is coated on both sides of the porous conductive sheet 3 in step (B2), the catalytic layer 2 is in contact with the proton exchange membrane 1 through the catalytic layer continuously coated in the through hole 31, so that the gas permeability can be increased, the amount of the catalytic layer 2 can be reduced, and the thickness can be reduced.
- the ion-conducting polymer may be any kind of ion-conducting polymer that conducts protons (H + ).
- a perfluorosulfonic acid ion-exchange membrane resin may be used, and the resin may be melted and applied to the surface of the catalytic layer.
- the catalyst is made into a solution form, and is coated on one side of the porous conductive sheet 3 to form a catalyst layer 2;
- the proton exchange membrane 1 is laminated between the porous conductive sheet 3 produced in step (B1) by hot pressing or fusion bonding, and the catalytic layer 2 on the other side of the porous conductive sheet 3 passes through the porous conductive sheet.
- the through hole 31 on 3 is in contact with the proton exchange membrane 1 to constitute a membrane electrode unit.
- the porous conductive sheet 3 is directly in contact with the catalytic layer 1 and the other side is a proton exchange membrane 1. This method has a short electronic flow, electrons can be directly derived from the porous conductive sheet 3, and the resistance is small.
- the catalytic layer 2 is mainly composed of a conductive porous material containing platinum and a platinum alloy. Platinum or a platinum alloy can be attached to a carrier carbon, and the catalytic layer 2 contains a pore-forming agent.
- the catalytic layer 2 may be a catalytic layer having a hydrophobic property or a catalytic layer having a hydrophilic property.
- the hydrophobic catalytic layer refers to a conductive porous material formed by using at least one hydrophobic polymer such as polytetrafluoroethylene and other polymers as a binder and using platinum or a platinum alloy as a catalyst.
- the platinum alloy can be attached to a carrier carbon or other conductive powder.
- Hydrophilic catalytic layer refers to a conductive material formed by using at least a hydrophilic polymer such as a perfluorosulfonic acid resin as a binder and using platinum or a platinum alloy as a catalyst. Platinum or a platinum alloy can be attached to Carrier carbon or other conductive powder.
- the difference between this embodiment and Embodiment 1 is that in this embodiment, the arrangement order of the composite layer of the membrane electrode catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 of the present invention is: porous The conductive sheet 3, the catalytic layer 2, the proton exchange membrane 1, the catalytic layer 2, and the porous conductive sheet 3.
- the contact area is large, so that the proton passing path is short and uniform.
- the layered composite of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 may include the following steps:
- the catalyst is made into a solution form, and is coated on one side of the porous conductive sheet 3 to form a catalyst layer 2;
- the layered composite of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 can also be used:
- the catalyst is made into a solution form, and is coated on one side of the porous conductive sheet 3 to form a catalyst layer 2;
- the proton exchange membrane 1 is compounded between the catalytic layer 2 produced in step (B1) by a method of hot pressing or fusion bonding to constitute a membrane electrode unit.
- the difference between this embodiment and Embodiment 1 is that in this embodiment, the arrangement order of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 after being compounded is: the catalytic layer 2, the porous conductive sheet 3.
- the proton exchange membrane 1, the catalytic layer 2, and the porous conductive sheet 3 ; the catalytic layers 2 on both sides of the porous electric sheet 3 and the proton exchange membrane 1 are in contact with each other through the through holes 31 in the porous conductive sheet 3.
- the difference between the manufacturing method of the membrane electrode of this embodiment and Embodiment 1 is that, as shown in FIG. 6A, in this embodiment, the layered composite of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 may be It includes the following steps ⁇
- the catalyst is made into a solution form, and is coated on one side of the porous conductive sheet 3 to form a catalyst layer 2;
- the ion-conducting polymer capable of conducting protons is made into a solution, and is coated on the other side of the porous conductive sheet 3 to form a proton exchange membrane 1.
- the composite catalytic layer 2 on the other side of the porous conductive sheet 3 passes through the porous conductive layer.
- the through hole on the sheet 3 is in contact with the proton exchange membrane 1;
- the ion-conducting polymer capable of conducting protons is made into a solution, and coated on the catalyst layer 2 formed in step (B1) to form a proton exchange membrane 1;
- a piece of the finished product in the step (B2) and a piece of the manufactured product in the step (B3) are bonded together with the ion-conducting polymer coated end as a bonding surface to form a membrane electrode unit.
- the layered composite of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 can be performed as follows:
- the catalyst is made into a solution form, and is coated on one side of the porous conductive sheet 3 to form a catalyst layer 2;
- step (B2) Combining the proton exchange membrane 1 by hot pressing or fusion bonding between the porous conductive sheet and the catalytic layer of the two manufactured products in step (B1), and the catalytic layers 2 and 2 on both sides of the porous conductive sheet 3
- the proton exchange membrane 1 is in contact with each other through the through holes 31 in the porous conductive sheet 3 to constitute a membrane electrode unit.
- the difference between this embodiment and Embodiment 1 is that in this embodiment, the arrangement sequence of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 after being combined is: the catalytic layer 2 Porous conductive sheet 3, catalytic layer 2, proton exchange membrane 1, catalytic layer 2, porous conductive sheet 3, catalytic layer 2.
- the method for manufacturing a membrane electrode in this embodiment is different from that in Embodiment 1 in that the layered composite of the catalytic layer 2, the proton exchange membrane 1 and the porous conductive sheet 3 may adopt the following steps:
- the catalyst is made into a solution, and coated on both sides of the porous conductive sheet 3 to form a catalytic layer 2;
- An ion-conducting polymer capable of conducting protons is made into a solution, and coated on one side A proton exchange membrane 1 is formed on the catalytic layer 2;
- the two pieces of the finished product in the above step (B2) are bonded together with the end coated with the ion conductive polymer as a bonding surface to form a membrane electrode unit.
- the layered composite of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 may also use the following steps:
- the catalyst is made into a solution and coated on both sides of the porous conductive sheet 3 to form a catalyst layer 2;
- the proton exchange membrane is compounded by (B1) by hot pressing or surface gelation Step between two catalytic layers of the finished product, a membrane electrode monomer. .
- the catalytic layer 2 may be a catalytic layer having a hydrophobic property.
- the catalytic layer 2 on the outer side of the porous conductive sheet 3 may be a catalytic layer having a hydrophobic property to increase the air permeability effect.
- the catalytic layer 2 sandwiched between the porous conductive sheet 3 and the proton exchange membrane 1 may be a catalytic layer having a hydrophilic property. .
- the difference between this embodiment and Embodiment 1 is that in this embodiment, the arrangement sequence of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 after being compounded is: the catalytic layer 2, Porous conductive sheet 3, catalytic layer 2, proton exchange membrane 1, catalytic layer 2, porous conductive sheet 3.
- the method for manufacturing a membrane electrode in this embodiment is different from that in Embodiment 1 in that the catalytic layer
- the layered composite of the proton exchange membrane 1 and the porous conductive sheet 3 may include the following steps ⁇
- the catalyst is made into a solution form, and coated on both sides of the porous conductive sheet 3 to form a catalytic layer 2;
- the ion-conducting polymer capable of conducting protons is made into a solution form, and coated on one of the catalytic layers Proton exchange membrane 1 is formed on 2;
- the catalyst is made into a solution form, and coated on one side of the porous conductive sheet 3 to form a catalytic layer 2; an ion-conducting polymer capable of conducting protons is made into a solution form, and coated on the catalytic layer 2 to form a proton exchange Membrane 1;
- the layered composite of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 may include the following steps ⁇
- the catalyst is made into a solution form, and coated on both sides of the porous conductive sheet 3 substrate to form a catalyst layer 2;
- the difference between this embodiment and Embodiment 1 is that in this embodiment, the arrangement sequence of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 after being compounded is: the catalytic layer 2 Porous conductive sheet 3, catalytic layer 2, proton exchange membrane 1, porous conductive sheet, catalytic layer 2; the catalytic layer 2 on both sides of the porous conductive sheet 3 and the proton exchange membrane 1 communicate through the porous conductive sheet 3, L 31 is in contact.
- the method for manufacturing a membrane electrode in this embodiment is different from that in Embodiment 1 in that the catalytic layer
- the layered composite of the proton exchange membrane 1 and the porous conductive sheet 3 may include the following steps ⁇
- the catalyst is made into a solution form, and coated on both sides of the porous conductive sheet 3 to form a catalytic layer 2;
- the ion-conducting polymer capable of conducting protons is made into a solution form, and coated on one of the catalytic layers Proton exchange membrane 1 is formed on 2;
- the catalyst is made into a solution, and coated on one side of the porous conductive sheet 3 to form a catalyst layer 2 ; an ion-conducting polymer capable of conducting protons is made into a solution, and coated on another part of the porous conductive sheet 3 A proton exchange membrane 1 is formed on one side, and a catalytic layer 2 compounded on the other side of the porous conductive sheet 3 is in contact with the proton exchange membrane 1 through a through hole 31 in the porous conductive sheet 3;
- the layered composite of the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 may include the following steps ⁇
- the catalyst is made into a solution form, and coated on both sides of the porous conductive sheet 3 substrate to form a catalyst layer 2;
- this embodiment is different from Embodiment 1 in that in this embodiment, a gas diffusion layer 4 may be composited on the porous conductive sheet 3 together with the catalytic layer 2 and the proton exchange membrane 1.
- the arrangement order of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 is: the gas diffusion layer 4, the catalytic layer 2, the porous conductive sheet 3, and the proton exchange
- the membrane 1, the porous conductive sheet 3, the catalytic layer 2, and the gas diffusion layer 1; the catalytic layer 2 on both sides of the porous conductive sheet 3 and the proton exchange membrane 1 are in contact with each other through the through holes in the porous conductive sheet 3.
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 may include the following steps ⁇ (B1) Compounding the gas diffusion layer 4 and the catalytic layer 2 on the porous conductive sheet 3;
- step (B3) The two finished products of step (B2) are bonded together with one end of the proton exchange membrane as a bonding surface to form a membrane electrode monomer.
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1 and the porous conductive sheet 3 can be carried out as follows ⁇
- step (B2) Combining the two finished products of step (B1) with the proton exchange membrane 1 between the two manufactured products by hot pressing or fusion bonding, and ensuring the catalysis of the proton exchange membrane 1 and its two sides
- the layers 2 are in contact with each other to form a single membrane electrode.
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, and the proton exchange membrane 1 and the porous conductive sheet 3 may specifically adopt the following steps ⁇
- the catalyst is made into a solution and coated on the gas diffusion layer 4 formed in step (B1) to form a catalytic layer 2;
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, and the proton exchange membrane 1 and the porous conductive sheet 3 may specifically include the following steps:
- step (B2) forming the catalyst into a solution, and coating the catalyst on the gas diffusion layer formed in step (B1) to form a catalyst layer;
- step (B3) The method of combining the proton exchange membrane by hot pressing or surface gelation bonding between the two finished products in step (B1) to form a membrane electrode unit.
- the gas diffusion layer 4 of the membrane electrode of the fuel cell may be composed of an electrically conductive porous material.
- the material is a mixture of electronically conductive materials, pore-forming components, and a binder.
- the electronic conductive material can be carbon powder, metal powder, and cermet powder with high conductivity;
- the pore-forming component is a loose structure particle, which can be carbon powder or carbon fiber;
- the binder is a polymer, which This polymer can be a partially or fully fluorinated carbon polymer, as well as other polymers with hydrophobic properties.
- the difference between this embodiment and Embodiment 7 is that in this embodiment, the arrangement order of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 after being combined is For: gas diffusion layer 4, more Porous conductive sheet 3, catalytic layer 2, proton exchange membrane 1, catalytic layer 2, porous conductive sheet 3, and gas diffusion layer 4.
- the difference between the manufacturing method of this embodiment and Embodiment 7 lies in that the layered composite of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 may specifically adopt the following steps:
- the catalyst is made into a solution and coated on the other side of the porous conductive sheet 3 to form a catalyst layer 2;
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 may also use the following steps:
- a layer of an electrically conductive porous material is coated on one side of the substrate of the porous conductive sheet 3 to form a gas diffusion layer 4;
- the catalyst is made into a solution and coated on the other side of the electric foil 3 to form Catalytic layer 2;
- the proton exchange membrane is laminated to the catalytic layer 2 of the two finished products in step (B2) by hot pressing or surface gel bonding to form a membrane electrode unit.
- the difference between this embodiment and Embodiment 7 lies in that, in this embodiment, the gas diffusion layer
- the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 are arranged in the following order: porous conductive sheet 3, gas diffusion layer 4, catalytic layer 2, proton exchange membrane 1, catalytic layer 2, gas diffusion layer 4, Porous conductive sheet 3.
- (B1) A layer of an electrically conductive porous material is coated on one side of the substrate of the porous conductive sheet 3 to form a gas diffusion layer 4; (B2) The catalyst is made into a solution and applied to the gas diffusion layer 4 formed in step (B1) A catalytic layer 2 is formed thereon; (B3) an ion-conducting polymer capable of conducting protons is made into a solution form, and coated on the catalytic layer 2 formed by (B2) to form a proton exchange membrane;
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1 and the porous conductive sheet 3 may also use the following steps ⁇
- step (B2) forming the catalyst into a solution, and coating the catalyst on the gas diffusion layer formed in step (B1) to form a catalyst layer;
- step (B3) The method of compounding the proton exchange membrane by hot pressing or surface gel bonding is compounded between the catalytic layers 2 of the two finished products in step (B1) to form a membrane electrode unit.
- the Huaben structure and manufacturing method of the present invention are the same as those in Embodiment 7, and are not repeated here.
- Proton exchange membrane 1 and porous conductive sheet 3 are arranged in the following order: gas diffusion layer 4, porous conductive sheet 3, gas diffusion layer 4, catalytic layer 2, proton exchange membrane 1, catalytic layer 2, The gas diffusion layer 4, the porous conductive sheet 3, and the gas diffusion layer 4.
- the difference between the manufacturing method of this embodiment and Embodiment 7 is that, as shown in FIG. 20A, in this embodiment, the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1 and the porous conductive sheet 3 are laminated in a layered manner. It may include the following steps-(B1) coating an electrically conductive porous material on both sides of the porous conductive sheet 3 substrate to form a gas diffusion layer 4;
- the catalyst is made into a solution, and the catalyst layer 2 is coated on the gas diffusion layer 4 on one side thereof;
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1 and the porous conductive sheet 3 may also use the following steps:
- a layer of electronically conductive porous material is coated on both sides of the porous conductive sheet 3 to form a gas diffusion layer 4;
- the catalyst is made into a solution, and the catalyst layer 2 is coated on the gas diffusion layer 4 on one side thereof;
- the proton exchange membrane 1 is compounded by the method of hot pressing or fusion bonding between the two catalytic layers 2 of the two finished products in step (B2) to form a membrane electrode unit.
- the difference between this embodiment and Embodiment 7 is that in this embodiment, the arrangement order of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 after being combined is: : Gas diffusion layer 4, catalytic layer 2, porous conductive sheet 3, proton exchange membrane 1, catalytic layer 2, porous conductive sheet 3, gas diffusion layer 4; said catalytic layer 2 on both sides of said porous conductive sheet 3 exchanges with protons
- the film 1 is in contact with the through hole 31 in the porous conductive sheet 3.
- the manufacturing method of the membrane electrode of this embodiment is different from that of Embodiment 7.
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, and the proton exchange membrane 1 and the porous conductive sheet 3 may include the following: step:
- the catalyst is made into a solution, and is coated on one side of the porous conductive sheet 3 to form a catalytic layer 2; On the catalytic layer 2 is coated an electronically conductive porous material to form a gas diffusion layer 4;
- (B2) Applying a layer of electronically conductive porous material to one side of the substrate of the porous conductive sheet 3 to form a gas diffusion layer 4;
- the catalyst is made into a solution and coated on the other side of the substrate of the porous conductive sheet 3 to form a catalyst layer 2 ;
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1 and the porous conductive sheet 3 may also use the following steps:
- the catalyst is made into a solution, and is coated on one side of the porous conductive sheet 3 to form a catalytic layer 2 ; an electroconductive porous material is coated on the catalytic layer 2 to form a gas diffusion layer 4 ;
- (B2) Applying a layer of electronically conductive porous material to one side of the substrate of the porous conductive sheet 3 to form a gas diffusion layer 4;
- the catalyst is made into a solution and coated on the other side of the substrate of the porous conductive sheet 3 to form a catalyst layer 2 ;
- the difference between this embodiment and Embodiment 7 is that in this embodiment, the arrangement order of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 after being compounded is: : Gas diffusion layer 4, catalytic layer 2, porous conductive sheet 3, catalytic layer 2, proton exchange membrane 1, catalytic layer 2, porous conductive sheet 3, catalytic layer 2, gas diffusion layer 4.
- the manufacturing method of the membrane electrode of this embodiment is different from that of Embodiment 7.
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, and the proton exchange membrane 1 and the porous conductive sheet 3 may include the following: step-
- the catalyst is made into a solution, and coated on both sides of the porous conductive sheet 3 to form a catalyst layer 2;
- the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1, and the porous layer can also adopt the following steps ⁇
- the catalyst is made into a solution, and coated on both sides of the porous conductive sheet 3 to form a catalyst layer 2;
- the proton exchange membrane 1 is compounded by the method of hot pressing or fusion bonding between the two catalytic layers 2 of the two finished products in step (B2) to form a membrane electrode unit.
- the difference between this embodiment and Embodiment 7 is that in this embodiment, the arrangement order of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 after being combined is: : Gas diffusion layer 4, catalytic layer 2, porous conductive sheet 3, catalytic layer 2, proton exchange membrane 1, catalytic layer 2, gas diffusion layer 4, porous conductive sheet 3.
- the method for manufacturing the membrane electrode of this embodiment is different from that of Embodiment 7.
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, and the proton exchange membrane 1 and the porous conductive sheet 3 may include the following: Steps:
- the catalyst is made into a solution and coated on both sides of the porous conductive sheet 3 to form a catalytic layer 2; on one of the catalytic layers 2 a layer of an electrically conductive porous material is coated to form a gas diffusion layer 4;
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1 and the porous conductive sheet 3 may also use the following steps:
- the catalyst is made into a solution, and coated on both sides of the porous conductive sheet 3 to form a catalytic layer 2; a catalytic layer 2 is coated on one of the catalytic layers 2 to form a gas diffusion layer 4;
- the difference between this embodiment and Embodiment 7 is that in this embodiment, the arrangement order of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 after being compounded is: : Gas diffusion layer 4, catalytic layer 2, porous conductive sheet 3, catalytic layer 2, proton exchange membrane 1, catalytic layer 2, porous conductive sheet 3, gas diffusion; interstitial layer 4. .
- the manufacturing method of the membrane electrode of this embodiment is different from that of Embodiment 1.
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, and the proton exchange membrane 1 and the porous conductive sheet 3 may include The following steps:
- the catalyst is made into a solution, coated on both sides of the porous conductive sheet 3 to form a catalyst layer 2; a middle layer of an electrically conductive porous material is coated on the middle catalyst layer 2 to form a gas diffusion layer 4;
- the catalyst is made into a solution and applied to a porous guide.
- the electric sheet 3 forms a catalytic layer 2 on one side of the substrate; a layer of electronically conductive porous material is coated on the other side of the porous conductive sheet 3 to form a gas diffusion layer 4;
- (B3) forming an ion-conducting polymer capable of conducting protons into a liquid state, and respectively coating the catalytic layers 2 formed by (B1) and (B2) to form a proton exchange membrane;
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1 and the porous conductive sheet 3 may also use the following steps ⁇
- the catalyst is made into a solution, and coated on both sides of the porous conductive sheet 3 to form a catalytic layer 2; a catalytic layer 2 is coated on one of the catalytic layers 2 to form a gas diffusion layer 4;
- the catalyst is made into solution, and coated on one side of the porous conductive sheet substrate to form a catalytic layer 2 ; on the other side of the porous conductive sheet 3, an electronic conductive porous material is coated to form a gas diffusion layer 4 ;
- the proton exchange membrane is compounded between the catalytic layers 2 of the two finished products in steps (B1) and (B2) by a method such as hot pressing or surface gel bonding to constitute a membrane electrode unit.
- the difference between this embodiment and Embodiment 7 is that in this embodiment, the arrangement order of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1, and the porous conductive sheet 3 after being combined is: : Gas diffusion layer 4, catalytic layer 2, porous conductive sheet 3, catalytic layer 2, proton exchange membrane 1, porous conductive sheet 3, catalytic layer 2, gas diffusion layer 4 ; the catalytic layers on both sides of the porous conductive sheet 3 2 is in contact with the proton exchange membrane 1 through the through hole 31 in the porous conductive sheet 3.
- the manufacturing method of the membrane electrode of this embodiment is different from that of Embodiment 7.
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, and the proton exchange membrane 1 and the porous conductive sheet 3 may include the following: step-
- (B1) forming the catalyst into a solution form, and coating the porous conductive sheet 3 on both sides of the substrate to form a catalytic layer 2;
- One side of the catalytic layer 2 is coated with an electrically conductive porous material to form a gas diffusion layer 4;
- the catalyst is made into a solution, coated on one side of the porous conductive sheet 3 to form a catalytic layer 2; a layer of an electrically conductive porous material is coated on the catalytic layer of the porous conductive sheet 3 to form a gas diffusion layer 4;
- (B3) forming an ion-conducting polymer capable of conducting protons into a solution, and respectively coating the catalytic layer formed by (B1) 2, and the porous conductive sheet 3 of (B2) to form a proton exchange membrane 1 on the other side;
- the layered composite of the gas diffusion layer 4, the catalytic layer 2, the proton exchange membrane 1 and the porous conductive sheet 3 may also use the following steps ⁇
- the catalyst is made into a solution, and coated on both sides of the porous conductive sheet 3 to form a catalytic layer 2; a catalytic layer 2 is coated on one of the catalytic layers 2 to form a gas diffusion layer 4;
- the catalyst is made into a solution, and is coated on one side of the porous conductive sheet substrate to form a catalytic layer 2; an electroconductive porous material is coated on the catalytic layer 2 to form a gas diffusion layer 4;
- the above embodiments are several specific implementation manners of the present invention, and are only used to describe the present invention but not to limit the present invention.
- the membrane electrode of the present invention can be compounded in various ways. As long as the function of the membrane electrode can be realized, the conversion of each different arrangement manner belongs to the scope of the present invention.
- the membrane electrode of the present invention is not limited to the use of a proton exchange membrane fuel cell, and can also be used as an electrolyte electrode of other electrochemical reaction devices, such as water electrolytic cells, chlor-alkali industrial electrolytic cells, and electrochemical sensors.
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- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CNB028298225A CN100347896C (zh) | 2002-11-20 | 2002-11-20 | 一种燃料电池膜电极及其制造方法 |
AU2002349740A AU2002349740A1 (en) | 2002-11-20 | 2002-11-20 | Membrane electrode assembly for fuel cells and the manufacture method of the same |
PCT/CN2002/000830 WO2004047211A1 (fr) | 2002-11-20 | 2002-11-20 | Ensemble electrode a membrane pour piles a combustible et son procede de fabrication |
Applications Claiming Priority (1)
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PCT/CN2002/000830 WO2004047211A1 (fr) | 2002-11-20 | 2002-11-20 | Ensemble electrode a membrane pour piles a combustible et son procede de fabrication |
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WO2004047211A1 true WO2004047211A1 (fr) | 2004-06-03 |
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PCT/CN2002/000830 WO2004047211A1 (fr) | 2002-11-20 | 2002-11-20 | Ensemble electrode a membrane pour piles a combustible et son procede de fabrication |
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Country | Link |
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CN (1) | CN100347896C (zh) |
AU (1) | AU2002349740A1 (zh) |
WO (1) | WO2004047211A1 (zh) |
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CN109802154A (zh) * | 2018-12-03 | 2019-05-24 | 一汽解放汽车有限公司 | 以扩散层作集电极的燃料电池 |
CN109742427A (zh) * | 2018-12-03 | 2019-05-10 | 一汽解放汽车有限公司 | 以膜电极作集电极的燃料电池 |
CN110323453B (zh) * | 2019-06-19 | 2021-12-14 | 一汽解放汽车有限公司 | 一种以冲孔金属箔作集电极的燃料电池 |
CN110649279B (zh) * | 2019-11-05 | 2024-02-06 | 陶霖密 | 质子交换膜电极、燃料电池、电堆及其制造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5176966A (en) * | 1990-11-19 | 1993-01-05 | Ballard Power Systems Inc. | Fuel cell membrane electrode and seal assembly |
US5252410A (en) * | 1991-09-13 | 1993-10-12 | Ballard Power Systems Inc. | Lightweight fuel cell membrane electrode assembly with integral reactant flow passages |
US5284718A (en) * | 1991-09-27 | 1994-02-08 | Ballard Power Systems Inc. | Fuel cell membrane electrode and seal assembly |
US6258239B1 (en) * | 1998-12-14 | 2001-07-10 | Ballard Power Systems Inc. | Process for the manufacture of an electrode for a solid polymer fuel cell |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6287717B1 (en) * | 1998-11-13 | 2001-09-11 | Gore Enterprise Holdings, Inc. | Fuel cell membrane electrode assemblies with improved power outputs |
DE69812444T2 (de) * | 1998-12-22 | 2004-02-12 | David Fuel Cell Components, S.L., Valverde del Majano | Membranelektrodenanordnung und herstellungsverfahren |
EP1505679A3 (en) * | 1999-04-30 | 2006-12-20 | E.I. du Pont de Nemours and Company | Electrochemical uses of amorphous fluoropolymers |
-
2002
- 2002-11-20 WO PCT/CN2002/000830 patent/WO2004047211A1/zh not_active Application Discontinuation
- 2002-11-20 AU AU2002349740A patent/AU2002349740A1/en not_active Abandoned
- 2002-11-20 CN CNB028298225A patent/CN100347896C/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5176966A (en) * | 1990-11-19 | 1993-01-05 | Ballard Power Systems Inc. | Fuel cell membrane electrode and seal assembly |
US5252410A (en) * | 1991-09-13 | 1993-10-12 | Ballard Power Systems Inc. | Lightweight fuel cell membrane electrode assembly with integral reactant flow passages |
US5284718A (en) * | 1991-09-27 | 1994-02-08 | Ballard Power Systems Inc. | Fuel cell membrane electrode and seal assembly |
US6258239B1 (en) * | 1998-12-14 | 2001-07-10 | Ballard Power Systems Inc. | Process for the manufacture of an electrode for a solid polymer fuel cell |
Also Published As
Publication number | Publication date |
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CN100347896C (zh) | 2007-11-07 |
AU2002349740A1 (en) | 2004-06-15 |
CN1695264A (zh) | 2005-11-09 |
AU2002349740A8 (en) | 2004-06-15 |
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