WO1997003477A1 - Pile a combustible et son procede de fixation - Google Patents
Pile a combustible et son procede de fixation Download PDFInfo
- Publication number
- WO1997003477A1 WO1997003477A1 PCT/JP1996/001852 JP9601852W WO9703477A1 WO 1997003477 A1 WO1997003477 A1 WO 1997003477A1 JP 9601852 W JP9601852 W JP 9601852W WO 9703477 A1 WO9703477 A1 WO 9703477A1
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- WO
- WIPO (PCT)
- Prior art keywords
- fuel cell
- filler
- side electrode
- electrode plate
- separator
- Prior art date
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Classifications
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
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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
- H01M8/02—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
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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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0232—Metals or alloys
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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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0239—Organic resins; Organic polymers
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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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
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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
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
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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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
- H01M8/2425—High-temperature cells with solid electrolytes
- H01M8/2432—Grouping of unit cells of planar configuration
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
- H01M8/244—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes with matrix-supported molten electrolyte
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2483—Details of groupings of fuel cells characterised by internal manifolds
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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
- H01M8/14—Fuel cells with fused electrolytes
- H01M2008/147—Fuel cells with molten carbonates
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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
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0048—Molten electrolytes used at high temperature
- H01M2300/0051—Carbonates
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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
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
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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
- H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/248—Means for compression of the fuel cell stacks
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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
Definitions
- the present invention relates to a fuel cell and a method for tightening the fuel cell. More specifically, the present invention relates to a fuel cell and a method for tightening the fuel cell. The present invention relates to a fuel cell in which the tightening force on the unit fuel cell is increased or decreased under the action of the tightening pressure generating means caused by a chemical change or a chemical reaction, and a method of tightening the fuel cell. Background art
- a solid polymer electrolyte membrane fuel cell has a unit fuel composed of an electrolyte membrane composed of a polymer ion exchange membrane, and an anode-side electrode plate and a cuff-side electrode plate disposed on both sides of the electrolyte membrane. It has a battery cell, and is configured by laminating a plurality of unit fuel battery cells configured as described above.
- a separator is interposed between the unit fuel cells stacked as described above, and the separator is used to appropriately humidify the electrolyte membrane, the anode-side electrode plate, and the cathode-side electrode plate. Water is supplied in the evening.
- the fuel gas for example, hydrogen gas supplied to the anode side by the supply of moisture from the separator is hydrogen ionized on the anode side electrode plate, and is made of porous carbon through the moderately humidified electrolyte membrane.
- an oxidizing gas for example, oxygen gas
- the force-side electrode plate Since an oxidizing gas, for example, oxygen gas, is supplied to the force-side electrode plate, the hydrogen ions and oxygen react with each other to generate water in the force-side electrode plate. The generated electrons are taken out to an external circuit and used as electrical energy.
- Japanese Patent Application Laid-Open No. 6-20713 discloses this type of fuel cell.
- the plurality of fuel cells are tightly tightened by the screw bolts penetrating each cell.
- Fuel gas such as hydrogen gas
- oxidizing gas such as gas and oxygen gas
- the electrode plate and the solid polymer electrolyte membrane, the electrode plate and the separator This is because a desired voltage can be stably obtained from the fuel cell without a change in output taken out due to a variation in contact resistance between ionic conduction and electronic conduction during one night.
- the fuel cell of this type is used as a driving source for an electric vehicle, but the vibration or the aging of the fuel cell causes the fuel cell. Therefore, there is a concern that the tightened state of each fuel cell may relax.
- the tightened state is relaxed in this way, as described above, the ionic conductive resistance and the mutual contact resistance vary among the plurality of fuel cells, and an equivalent output is obtained from each fuel cell. As a result, the output stability of this type of fuel cell cannot be ensured.
- the present invention has been made to overcome the above-mentioned disadvantages, and it is an object of the present invention to provide a fuel cell in which a difference in output between a plurality of fuel cell cells is small and the output itself is further stabilized, and a method of fastening the fuel cell. With the goal.
- a separator or a clamp interposed at a predetermined position is provided in a fuel cell in which a plurality of fuel cells having an anode side electrode plate and a force side electrode plate are stacked.
- a pressure generating plate wherein the separator or the clamping pressure generating plate includes a chamber defined therein, and a filling material that expands and contracts by absorbing and releasing heat is provided in the chamber;
- Each of the fuel cells is displaced by displacing the separator or the clamping pressure generating plate to at least one of the anode-side electrode plate and the cathode-side electrode plate due to absorption and release of heat of the filler. It is characterized in that the tightening force on the cell is increased or decreased.
- a separator interposed at a predetermined position or a tightening pressure is generated.
- the separator or the clamping pressure generating plate includes a chamber defined therein, and a filler that deforms by absorbing and releasing heat is provided in the chamber; Due to the deformation, at least the separator or the tightening pressure generating plate Also, the clamping force for each fuel cell is increased or decreased by displacing either the anode side electrode plate or the force hood side electrode plate.
- a separator or a clamping pressure generated at a predetermined position is interposed.
- the separation or fastening pressure generating plate includes a chamber defined therein, and a filler that expands and contracts due to a chemical reaction is provided in the chamber, and the filler expands. Due to the contraction, the separator or the clamping pressure generating plate is displaced to at least one of the anode side electrode plate or the force side electrode plate to increase or decrease the tightening force for each fuel cell. It is characterized by performing.
- a separator or a clamping pressure generated at a predetermined position is interposed.
- a second filler that expands and contracts due to a chemical reaction, and absorbs and emits heat of the first filler and a chemical reaction of the second filler, and the separation or tightening is performed.
- the pressure generating plate is displaced to at least one of the anode-side electrode plate and the cathode-side electrode plate to increase or decrease the tightening force on each fuel cell.
- a separator or a clamping pressure generated at a predetermined position is interposed.
- the separation plate or the clamping pressure generating plate includes a chamber defined therein, and a first filler material that causes thermal decomposition by absorbing and releasing heat in the room and a chemical agent.
- a second filler that generates a gas by a reaction is provided, and the volume of the chamber is expanded by the thermal decomposition or generation of the gas, so that the separator or the clamping pressure generating plate is at least the anode.
- a separator interposed at a predetermined position is provided in a fuel cell in which a plurality of fuel cells having a cathode side electrode plate and a cathode side electrode plate are stacked.
- a separator or a clamping pressure generating plate, and a part of the separator or the clamping pressure generating plate is displaced to at least one of the anode side electrode plate and the cathode side electrode plate due to heat, It is characterized in that the tightening force for each fuel cell is increased or decreased.
- the fuel cell in which a plurality of fuel cells having an anode side electrode plate and a force side electrode plate are stacked, the fuel cell is defined inside the separator or the clamping pressure generating plate.
- the cooling medium is supplied to the packing material disposed in the cooling space, and the packing material is swollen by the cooling medium, and the stacked fuel cells are mutually tightened by the force generated by the swollen action. It is characterized by the following. Disclosure of the invention
- the indoor filler expands, for example, at a predetermined temperature.
- the separator or the clamping pressure generating plate presses the anode side electrode plate or the force side electrode plate.
- the pressing action further secures the adhesion of the electrode plate, and reduces ionic conductive resistance, contact resistance and the like. Therefore, a stable output can be obtained from the fuel cell.
- the packing material provided in the room is selected so as to shrink at a predetermined temperature
- the fuel cell is assembled in a state of shrinking at the predetermined temperature, and then the fuel cell is returned to its operating temperature.
- the filler expands, so that the anode-side electrode plate or the force-tooth-side electrode plate is pressed in the same manner as described above.
- the filler a member that is deformed by heat absorption or release is selected as the filler. Therefore, the deformation of the filler at a predetermined temperature causes a displacement action of the anode-side electrode plate or the force-side electrode plate, thereby improving the adhesion of the electrode plate.
- a member that expands and contracts by a chemical reaction is selected for the filler. Therefore, in the present invention, the filler expands or contracts due to a chemical reaction, and performs the same operation as the above two inventions.
- a first filler that expands and contracts by absorbing and releasing heat is used in combination with a second filler that expands and contracts by a chemical reaction. Therefore, when the first filler or the second filler is selectively present, the clamping pressure is adjusted by displacing the anode side electrode plate or the cathode side electrode plate together. it can.
- the first filler that causes thermal decomposition by absorbing and releasing heat is used in combination with the second filler that generates gas by a chemical reaction. For this reason, due to the thermal decomposition of the first packing material or the generation of gas from the second packing material, the volume in the chamber expands and one of the anode side electrode plate and the cathode side electrode plate is displaced. Let As a result, the tightening pressure of the fuel cell increases.
- the separator or the clamping pressure generating plate is directly deformed due to heat without using the filler specified in the first to fifth inventions,
- the contact pressure on the anode-side electrode plate or the cathode-side electrode plate is increased. According to this, the same effects as those of the first to fifth aspects can be obtained.
- a refrigerant is supplied to a filler inside a chamber provided in the separator or the clamping pressure generating plate, and the refrigerant swells the filler, and the anode-side electrode plate Alternatively, the adhesion to the force side electrode plate is increased.
- FIG. 1 is a partially omitted exploded perspective view of a fuel cell according to the present invention.
- FIG. 2 is a perspective view of the separation in FIG. 1 viewed from another direction.
- FIG. 3 is a partially cutaway perspective view of the separation tray shown in FIG.
- FIG. 4 is an exploded sectional view of the fuel cell shown in FIG.
- FIG. 5 is a perspective view of a gasket incorporated in the fuel cell of FIG.
- FIG. 6 is a perspective view of an assembled state of the fuel cell unit shown in FIG.
- FIG. 7 is a perspective view of one end plate.
- FIG. 8 is an exploded perspective view of the separation of another embodiment.
- FIG. 9 is a schematic longitudinal sectional view of the separator according to the present invention.
- FIG. 10 is a schematic configuration diagram showing a combination state of the separator and the fuel cell and the end plate shown in FIG.
- FIG. 11 is a longitudinal sectional view showing a state where the fuel cell unit shown in FIG. 10 is hooked.
- FIG. 12 is a longitudinal sectional view showing the arrangement of the first separation, the second separation, and the fourth separation.
- FIG. 13 is a longitudinal sectional view of the fastening pressure generating plate.
- FIG. 14 is a disassembled longitudinal sectional view for combining FIGS. 12 and 13 with the gasket described above.
- FIG. 15 is a longitudinal sectional view showing a state where the components shown in FIG. 14 are assembled.
- FIG. 16 is a characteristic curve diagram showing the relationship between temperature, clamping pressure, and current density.
- FIG. 17 is a characteristic curve diagram showing a relationship between a temperature, a clamping pressure, and a current density when a shape memory alloy or the like is used as a filler.
- FIG. 18 is a schematic configuration diagram showing a state where a refrigerant system is incorporated in the fuel cell according to the present invention.
- FIG. 19 is a characteristic curve diagram showing the relationship between the temperature, the clamping pressure, and the current density when an ion exchange resin is used as a filler.
- FIG. 20 is a longitudinal sectional view showing a schematic configuration of a fuel cell for generating a tightening pressure by causing a chemical reaction and a system for forming a chemically reactive substance.
- FIG. 21 is a graph showing a relationship between a temperature for generating a tightening pressure due to thermal decomposition of a filler material, a tightening pressure, and a current density.
- FIG. 22 is a schematic vertical sectional view of a fuel cell incorporating a system for generating a clamping pressure by a chemical reaction.
- FIG. 23 is a characteristic curve diagram showing a relationship between a temperature at which a clamping pressure is generated by adding a chemical substance, a clamping pressure, and a current density.
- FIG. 24 is a graph showing the relationship between the temperature, the clamping pressure, and the current density for generating the clamping pressure using the pressure of hydrogen released from the metal hydride.
- Figure 25 shows a fuel cell cell using a shape memory alloy or shape memory resin.
- 6 is a graph showing a relationship between a temperature, a clamping pressure, and a current density for generating a clamping pressure by deforming a member constituting the nozzle.
- the fuel cell 10 indicates a solid polymer electrolyte membrane fuel cell.
- the solid polymer electrolyte membrane fuel cell is listed as a preferred embodiment.
- the pressurization structure of the separation part the direct methanol / air fuel cell, alkali It is substantially the same as the electrolyte fuel cell, the phosphoric acid fuel cell, the molten carbon dioxide fuel cell, and the solid electrolyte membrane fuel cell. Therefore, the present invention is applicable to these fuel cells.
- the fuel cell 10 basically includes a power generation unit 12, a separation unit 14, and a power.
- the separation section 14 includes a first separation section 16 and a second separation section 18 that are made of dense materials.
- a plurality of ribs 20 project from the rectangular first separator plate 16 in parallel in the horizontal direction to supply fuel gas between the adjacent ribs 20.
- a passage 22 is defined.
- the second separator 18 has a substantially C-shaped cross section, and the side 24 has a hole 24 on which the first separator 16 is fitted. The hole 24 communicates with a chamber 25 defined in the second separator 18.
- a plurality of ribs 26 protrude from the other side surface of the second separator 18 in parallel in the vertical direction, whereby an oxidant gas is interposed between the adjacent ribs 26, 26.
- a passage 28 for supplying air is defined (see FIGS. 2 and 3).
- a rectangular parallelepiped through hole 34 is formed in the left frame 18a of the second separator 18. Further, another through hole 36 is defined in the right frame 18b. In the left frame 18a, a plurality of pores 38 communicating from the through hole 34 to the mosquito L part 24 are defined, and in the right frame 18b, the through hole 36 extends from the through hole. Multiple pores 40 communicating with 4 4 It is defined (see Figure 1). Therefore, when the first separator 16 is fitted to the mosquito portion 24 of the second separator 18, the pores 38 and 40 are passed through the passage 22 of the first separator 16. And communicate with each other. As easily understood from FIG. 4, when the first separator 16 is fitted into the hole 24 of the second separator 18, the first separator 16 and the second separator 16 are fitted together.
- a sealing member 30 such as a conductive synthetic resin rubber or a conductive resin is engaged between the shutter 18 and the housing 18.
- a rectangular parallelepiped through-hole 42 is defined in the upper frame 18c of the second separator 18 and another through-hole 44 is defined in the lower frame 18d.
- a plurality of pores 46 communicating with the passage 28 from the through hole 42 are formed, and in the lower frame 18d, the passage 2 is formed from the through hole 44.
- a plurality of pores 4 8 communicating with 8 are defined. Therefore, the plurality of pores 46 and the pores 48 are in communication with each other via the passage 28.
- a communication hole 50 is formed at a corner formed by the upper frame 18c and the left frame 18a of the second separator 18 and a communication hole 50 is formed by the lower frame 18d and the right frame 18b.
- a communication hole 52 is defined in the corner portion formed. The communication holes 50 and 52 communicate with a chamber 25 defined by fitting the first separator 16 into the hole 24 of the second separator 18 from an oblique direction ( See Figure 4).
- the power generation unit 12 includes a solid polymer electrolyte membrane 60, and a first electrode catalyst layer 62a and a second electrode catalyst layer 62b provided on both surfaces thereof.
- the size of the first and second electrode catalyst layers 62 a and 62 b is substantially the same as the inner edge of the second separator 18 defining the hole 24.
- the solid polymer electrolyte membrane 60 and the electrode catalyst layers 62 a and 62 b are illustrated as being integrated, but the solid polymer electrolyte membrane 60 and the electrode catalyst It is a matter of course that the layers 62a and 62b may be separately configured.
- FIG. 5 shows the structure of the gasket 66.
- the gasket 68 has substantially the same shape as the gasket 66. Therefore, the gasket 66 will be described in detail, and the description of the gasket 68 will be omitted. Therefore, the gaskets 66, 68 are sandwiched between the second separator 18 and the solid polymer electrolyte membrane 60, as shown in FIG. You.
- the gaskets 66 and 68 include a plurality of first separators 16 and a second separator 18 in which fuel gas and oxidant gas are stacked as a fuel cell 10. Through holes 70, 72, 74, 76, communication holes 78, 80, and large holes 82 are defined so that they can flow.
- the through hole 34 of the second separation section 18 and the through holes 70 of the gaskets 66, 68 communicate with each other.
- 36 communicates with the through hole 72
- the through hole 42 communicates with the through hole 74
- the plurality of ribs 20 of the first separator 16 enter the large hole 82.
- the packing material made of any one of the fillers 83 a to 83 g or a combination thereof is placed in the chamber 25 defined in the second separator 18. 8 3 are provided.
- the filler 83 is not limited to the inside of the chamber 25, and may be provided in the communication holes 50 and 52.
- the combination with the Layman Club 14 is as follows. That is, the first separator 16 is fitted into the hole 24 of the second separator 18, the sealing member 30 seals the first separator 16 and the second separator 18, and Make an electrical connection. In this case, a sufficient filler 83 is provided in the room 25 in advance. In this embodiment, a cation exchange resin or an anion exchange resin is employed as the filler 83. Therefore, when the first separator 16 is fitted into the hole 24 of the second separator 18, the ion exchange resin constituting the filler 83 is formed by the first separator 16. Alternatively, the Yin exchange resin is pressed so as to reduce its volume.
- the gasket 66 is on the side of the first separator 16 and joined to the second separator 18, and the gasket 68 is joined to the surface of the second separator 18 on the side of the rib 26. .
- the power generation unit 12 is interposed between the gasket 66 and the gasket 68.
- pipe joints 79, 84 communicating with through holes 34, 42 of the second separator 18 and pipes communicating with the communicating holes 52 An end plate 92 having an end plate 92 having a fitting 88, and end fittings 94 provided with fittings 81, 86 communicating with the through holes 36, 42 and a fitting 90 communicating with the communicating hole 50 are provided at both ends thereof. And firmly and evenly tighten the four corners with the tightening bolts 96a to 96d. wear.
- the end plate 94 is formed of a plate having substantially the same size as the end plate 92 and has a hole communicating with the pipe joint 81 corresponding to the through hole 36 of the second separator 18.
- the portion 102 also defines a hole 106 communicating with the pipe joint 86 with respect to the through hole 44. Further, a hole 107 communicating with the pipe joint 90 is defined corresponding to the communication hole 50.
- reference numerals 112a to 112d indicate fastening holes into which one ends of the fastening bolts 96a to 96d are inserted.
- the filler 83 that is previously filled in the chamber 25 will be described.
- the filler 83 is, as described above,
- the substance itself filled in the chamber 25 thermally decomposes based on the operating temperature of the fuel cell, or a boiling point lower than the operating temperature of the fuel cell due to a chemical reaction between the charged substances.
- the filler 83 a is preferably a substance having a boiling point at a temperature equal to or lower than the operating temperature of the fuel cell, and in this case, a substance showing reactivity between the substance and the substance, or
- the substance may be a substance that does not show reactivity with the constituent elements of the fuel cell in contact with the substance, or a mixture of the substance showing the reactivity and the substance that does not show the reactivity.
- the following substances are adopted for
- Inorganic compounds water, ammonia, carbon dioxide (including dry ice), argon, nitrogen, hydrogen, helium, neon, radon, xenon, krypton,
- 'Cyclic compounds cyclobutane, cyclopropane, cyclohexane, cyclopentene, hexafluorobenzene, perfluorocyclohexane
- the filler 83b may be a shape memory alloy that produces a memory effect that deforms in one or two directions, or a combination thereof.
- a nickel-titanium alloy or a copper-zinc-aluminum alloy is preferable.
- the shape of these shape memory alloys is preferably a coil spring shape or a random coil shape.
- the filler 83b may be a shape memory resin.
- shape memory resin polynorbornene resin, polymer alloy containing polyester as a main component, urethane elastomer, and trans polyisoprene cross-linked resin are preferable.
- the filler 83c is made of a cation exchange resin, an anion exchange resin, or a mixture of these ion exchange resins.
- This type of ion-exchange resin is formed in a spherical or film-like form, and changes depending on the degree of dryness and wetness, or acid or alcohol.
- the state of swelling, shrinking, or deforming due to the change of the ionic form of the functional group due to chemical treatment using an aqueous solution of water or an aqueous solution of salt is used.
- the cation exchange resin has a parent structure of any of styrene, methacrylic, acrylic, Teflon, and pyridine, and has a sulfonic acid group, a carboxylic acid group, an aminophosphate group, a pyridine group, and a dithio group. It is any one of a rubamic acid group, an iminodiacetic acid group, and an aminocarboxylic acid group.
- the anion exchange resin has a parent structure of any of styrene, methyl acryl, acrylic, phenol, and Teflon, and has a quaternary ammonium base, a secondary amine group, or a tertiary amine group as a functional group. Either a class amine group or a polyamine.
- the filler 83 c may be a water-absorbing gel or a water-absorbing resin. Certain types of water-absorbing gels or resins change their form depending on the degree of dryness or wetness.
- acrylic acid, vinyl alcohol copolymer, sodium acrylate polymer and the like can be mentioned.
- the filling material 83 c may be a smectite-based viscous mineral or a polyamide, or a hybrid material thereof. This is because the form changes depending on the degree of wetness depending on the amount of fluid introduced into these materials.
- an aromatic compound such as benzene or toluene may be used as the filler 83c.
- the filler 83 c that expands and contracts due to the chemical treatment is the above-mentioned cation exchange resin, anion exchange resin, water-absorbing gel or resin, smectite-based viscous mineral, or boriamid, or a mixture thereof. Or a mixture thereof.
- a filler material that expands and contracts by chemical treatment and a filler material that expands and contracts by absorbing and releasing heat using a substance such as the above-mentioned inorganic compound, organic compound, stoccite-based viscous mineral or polyamide. Combination where both do not respond However, a substance that does not react with the constituent elements of the fuel cell in contact with these substances (a plurality of mixed substances may be used) may be used.
- the filler 83d a combination of substances that generate hydrogen gas, nitrogen gas, carbon dioxide gas, ammonia gas, oxygen gas, or a single substance, a combination of substances that generate water, or a single substance can be listed. it can. In this case, the substances listed below are suitable.
- Metal and acid zinc or transition metal and hydrochloric acid, alkaline earth metal and acid
- c Metal and base aluminum or gay and sodium hydroxide, alkali metal and ammonia
- Metal and water Al metal or Al earth metal and water
- Metal and alcohol Al metal or Al earth metal and alcohol
- Metal hydride and water Lithium hydride or Al earth metal hydride and water
- Direct methanol / air fuel cell approx. 100 ° C or less
- Alkaline electrolyte fuel cell approx. 100 ° C or less
- Phosphoric acid fuel cell about 200 or less
- Solid electrolyte membrane fuel cell approx.
- the filler 83 g it is preferable to use a shape memory alloy having an operating temperature equal to or lower than the operating temperature of the fuel cell described below among the shape memory alloys described in the above (1).
- Solid polymer electrolyte membrane fuel cell About 120 ° C or less
- Alkaline electrolyte fuel cell About 100 and less
- Phosphoric acid type fuel cell About 200 ° C or less
- water as a cooling water or a mixture of water and alcohol reaches the communication hole 52 from the fitting 88 of the end plate 92, and enters the chamber 25 filled with the packing material 83. Then, the internal pressure of the room 25 is increased.
- a cation exchange resin or an anion exchange resin is provided as the filler 83 c. Therefore, the filler 83 c swells due to the impregnation with water. As a result, the first separator 16 is displaced or deformed toward the electrode catalyst layer 62b.
- the ribs 20 of the first separator 16 are evenly pressed against the electrode catalyst layer 6 2 b by the displacement action or the deformation action of the filler 83 c and the first separator 16, and furthermore, (2)
- the solid polymer electrolyte membrane 60 is pressed against the separator 18 so that the ion and electronic conductivity are not impaired, and the contact resistance does not increase but decreases instead.
- the fuel gas supplied to the passage 22 unreacted fuel gas passes through the through hole 36 and is discharged from the pipe joint 81 through the hole 102 of the end plate 94.
- a part of the oxidizing gas is also part of the through-hole 4 of the second separator 18 And is discharged from fittings 86.
- the water in the chamber 25 flows through the communication hole 52 of the second separator 18,
- the internal pressure of the chamber 25 decreases. Therefore, the surface pressure on the 1st separatory 16 side also decreases and returns to the pressure at the time of assembly.
- the filler material 8 3 Due to the swelling action of c and the deformation action of the first separator 16, the pressing force against the solid polymer electrolyte membrane 60 is increased at once, so that the contact resistance does not increase.
- the power to increase or decrease the amount of water supply according to the dry state of the power generation unit 12 since water is directly supplied from the chamber 25 defined in the fuel cell 10, the solid polymer electrolyte Responsiveness to the wetting of the membrane 60 is high.
- the pressure of the supplied water (PH 20 ) is set higher than the hydrogen gas (PH 2 ) as the fuel gas and the oxygen gas (P ⁇ 2 ) as the oxidant gas,
- the second separator 18 is made of a dense material, only water enters the passage 22 of the first separator 16, and the fuel gas and the oxidizing gas are transferred to the chamber 25. The mixing can be reliably prevented, and safety is ensured.
- water is selected as the fluid, but instead of this water, alcohol or, as described above, a mixed solution of water and alcohol, and further a mixed solution of water and methanol can do.
- a mixed solution of water and methanol if the component on the anode side of the separator 18 is replaced with a porous material to be a porous body, the mixed solution of water and methanol is directly supplied to the anode-side electrode plate.
- Type of methanol fuel cell is selected as the fluid, but instead of this water, alcohol or, as described above, a mixed solution of water and alcohol, and further a mixed solution of water and methanol can do.
- the inside of the chamber 25 can function as a water quality management section for maintaining the quality of the cooling water. it can.
- battery exchange by ion exchange resin It can remove cations and other cations from other metal ions that may melt out of the tack, or remove carbonate ions by mixing carbon dioxide gas in the atmosphere with cooling water.
- the separation part 14 is configured to be separated into a first separation part 16 and a second separation part 18, but the second separation part 18 is further separated. Separation main body 150, in which room 25 is defined, and third separation night 152, can be separated. This is shown in FIG.
- the third separator 150 is fitted into a hole defined on the opposite side of the separator main body 150 from the first separator 1.6, and the third separator 150 shown in FIG.
- a large number of oxidizing gas supply passages 154 extending in the same vertical direction as the oxidizing gas supply passages 28 are defined in parallel.
- the fillers 83a to 83g are provided inside a chamber 25 defined between the first separator 16 and the third separator 152. , Or a filler made of any combination thereof. Therefore, when the packing materials 83a to 83g are made of the above packing materials 1 to 8, the first separator 16 and the third separator 15 2 It deforms in the direction away from it and increases the pressing force on the electrode catalyst layers 62a and 62b.
- a filler material 83 is provided in the chamber 25 to cool the fuel cell 10 or to increase the force for tightly tightening the fuel cell 10.
- the chamber 25 communicates with other unit fuel cells. This is referred to herein as an open type.
- a fuel cell called a closed type may be considered in contrast to the open type.
- the structure is such that the communication passages 50 and 52 are not provided in the above embodiment.
- the structure of this sealed fuel cell is schematically shown in FIGS. 9, 10, and 11.
- FIG. 9 the same components as those in the above embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.
- the separation main body 150 is separated into an anode side separation main body 150a and a cuff side separation main body 150b, and is separated.
- the first separator 16 is fitted to the main separator 150a, while the third separator 152 is fitted to the cuff separator main body 150b.
- a room 156 is provided for installing the filler 83 between the main body 150a and 150b.
- a passage 154 for supplying an oxidizing gas is defined so as to be orthogonal to the passage 22 of the first separator 16.
- the cut-side separator main body 150a is attached to one end plate 92 via a gasket 66, and the end plate 92 and the anode-side separator are mounted.
- a chamber 157a for providing a filler 83 between the main body 150a is defined.
- the gasket 68 faces the main body 15 Ob on the force source side separator, and the electrode catalyst layer 62 a, the solid polymer electrolyte membrane 60, and the gasket 68 between the gasket 68 and the next gasket 66.
- the power generation section 12 composed of the electrode catalyst layer 62b is sandwiched. Accordingly, the main body 15 Ob of the separation on the force sword side comes into contact with the electrode catalyst layer 62 a.
- the electrode catalyst layer 62b is in contact with the anode-side separator body 150a (see FIG. 11). With such a configuration, the anode-side separator main body 150a is attached to the final end plate 94 via the gasket 68. In the anode separator main body 150a, the first separator 16 provided inside thereof comes into contact with the electrode catalyst layer 62b. A room 157 b for providing a filler 83 between the other end plate 94, the gasket 66, and the first separator 16 is defined.
- the chambers 156, 157a , 157 b are provided with a filler 83.
- a filler 83 that expands, contracts or deforms due to chemical treatment or heat is selected and loaded into the chambers 15 6 and 15 7 a.
- the filler 83 presses the anode-side separator main body 150a and / or the cuff-side separator main body 150b to form the electrode catalyst layers 62a and 62b. Crimping and crimping. This As a result, a sufficient tightening force is applied to the fuel cell 10.
- FIGS. 12 to 15 show still another embodiment.
- a tightening pressure generating plate 200 is used instead of the separator main body 150 shown in the above embodiment, and a fourth separator 220 is used. are doing.
- the tightening pressure generating plate 200 is very similar to the separation main body 150 in the above embodiment, but in this case, extends in the horizontal direction forming the separation main body 150. Instead of the plurality of pores 38, 40 and the plurality of vertically extending pores 46, 48, a chamber 204 in which a filler 83 is provided at the center of the cross section is defined. In this respect, there is a slight difference from the separator body 150 described above. Then, the force-sword side pressing plate 206 fits into the holes which are largely opened on both sides of the tightening pressure generating plate 200, and the anode side pressing plate 208 fits on the other side.
- the fourth separator 202 has an opening 210 that penetrates greatly from one side surface to the other side, and has a first separator 16 in the first embodiment and a third separator 16 in the second embodiment.
- the separation plate 2 1 2 with the structure of the separation plate 1 52 is integrally fitted.
- reference numeral 214 denotes the same separation main body as the anode-side separation main body 150a in the second embodiment, and reference numeral 216 denotes the power source side. Shows the same separation main body as Separation main body 150b.
- FIG. 15 is a schematic longitudinal sectional view showing the assembled structure.
- the filler 83a is maintained at a temperature lower than the boiling point until the fuel cell is assembled. When the assembly is completed and the temperature is returned to room temperature, the filler 83a has a boiling point or higher, so that it expands to increase the tightening pressure on the fuel cell and increase the current density generated.
- a filler material 83 b deformed by absorption and release of heat is used (see Fig. 17). Operating temperature of the filler material 83 b (shape memory alloy or shape memory resin) that deforms until the fuel cell is completed It is kept below. When the fuel cell attempts to operate after completion of the fuel cell, the fuel cell is heated to the operating temperature of the shape memory alloy or the shape memory resin or higher.
- the shape memory alloy or the shape memory resin is deformed and the tightening pressure of the fuel cell increases, and the current density also increases.
- the tightening pressure can be further arbitrarily adjusted as compared with a unidirectional one. This is indicated by the dashed line in Figure 17. That is, when assembling the fuel cell and completing the fuel cell, the shape of the spring coil or the random coil is adjusted so that the shape memory alloy or the shape memory resin can be stretched above the operating temperature, and the temperature is raised to the operating temperature or more.
- the shape memory alloy or the shape memory resin acts on the anode-side and cuff-side electrode catalyst layers so as to be spread.
- a temperature control heat exchanger 300 In order to improve the temperature control characteristics for fuel cell power generation, as shown in Fig. 18, a temperature control heat exchanger 300, a refrigerant tank 302, a circulation pump 304, The valve 306 is communicated with the pipe line 308, and the valve 306 is connected to the communication hole 50 via the fitting 888 shown in FIG. 6, and the valve is connected to the communication hole 52 through the chamber 25.
- a circulation system is formed to reach the temperature control heat exchanger 300 again through 310.
- the temperature of the fuel cell exceeds the operating temperature of the shape memory resin when the temperature of the fuel cell is higher than that of the shape memory alloy.
- the filling material that was filled within the night of Separation 8 3 and a tightening pressure is generated. In this case, even if the power generation of the fuel cell is stopped or terminated, or the temperature of the fuel cell returns to room temperature, the state in which the tightening pressure is maintained due to the unidirectionality is maintained.
- the ion exchange resin in a dry state is used as the filler 83c, and the room 25 or the room 204 is filled at room temperature.
- the fuel cell is assembled under the room temperature condition, and the pipe line 400 is connected to the communication hole 50 via the pipe joint 88 as shown in FIG.
- a valve 404 is fitted into the pipe 402 that communicates with the pipe 400, and the water tank 406 is also connected.
- the pipeline 408 further communicates with the pipeline 408, and a valve 411 is interposed in the pipeline 408 and a tank 412 for other medium is connected thereto.
- the pipeline 400 communicates with the pipeline 4 14, and a valve 4 16 is interposed in the pipeline 4 14.
- the pipeline 414 is connected to a tank 418 for storing an acid or alkali solution.
- the communication hole 52 communicates with a conduit 422 through which a valve 420 is interposed.
- valves 404, 410 and 416 provided in the pipeline 400 are opened.
- water is supplied from the water tank 406 to the filler 83 in a dry state, and the ion-exchange resin constituting the first filler 83 is wetted and expanded.
- a tightening pressure is generated for the fuel cell.
- the acid or alkali solution in the tank 418 is opened and supplied to the valve 416.
- the valve 404 is of course closed.
- a medium that does not dissolve the ion-exchange resin may be stored in the tank 412 that stores the other medium.
- the tightening pressure at the time of power generation of the fuel cell is such that the resin itself of the ion exchange resin is moistened, or that the resin expands due to ion conversion, and the tightening pressure increases.
- the medium used for the chemical reaction increases the fuel density during power generation of the fuel cell and the internal resistance of the cell generates heat as a result of the decrease, the vapor pressure rises and falls, causing the clamping pressure to decrease. Will be added and appear.
- the cooling pressure can be easily controlled by cooling the medium used for the chemical reaction.
- this type of packing material 83d When this type of packing material 83d is used, a sealed fuel cell is preferable, but in some cases, the communication holes 50 and 52 are completely closed after the fuel cell is assembled. It may be of a type that closes to When this packing material 83d is used, the fuel cell and the separator are assembled at room temperature, and the thermal decomposition temperature of the packing material 83d is selected to be in the fuel cell operating temperature range. I do. Therefore, when the fuel cell assembled at room temperature performs the power generation function, the temperature of the fuel cell itself increases, and the volume increases when the temperature exceeds the thermal decomposition temperature of the filler 83 d, The pressure in the separator rises to generate tightening pressure.
- the generated gas pressure repeatedly rises and falls due to heat generated by the internal resistance of the cell due to the increase in current density during fuel cell power generation, and the pressure change becomes a change in clamping pressure. Appear.
- the temperature of the fuel cell returns to room temperature. In this process, the pressure decreases to a tightening pressure corresponding to the gas pressure that has decreased due to the decrease in the temperature.
- a substance capable of chemically reacting in chamber 25 or chamber 204 The quality is to be provided as filler 8 3 e.
- a pipe 500 is connected to the communication hole 50.
- Valves 502 and 504 are interposed in the pipeline 504, and a tank 506 for storing the reactants B or B + C... Is connected to the valve 504.
- the pipe 508 is connected to the communication hole 52 via the valve 5 10.
- a vacuum pump 512 is connected to the line 508.
- the fuel cell unit is assembled at room temperature.
- the filling material 83 e that causes a chemical reaction is filled in the room 25 or the room 204 beforehand. Therefore, the vacuum pump 5 12 is driven to degas the gas existing in the fuel cell, for example, the inert gas (nitrogen, argon, helium, etc.) for storing the fuel cell by the vacuum pump 5 12.
- the reactant B or B + C ... is supplied from the tank 506 to the fuel under the opening action of the valves 504 and 502. Send it into the battery cell.
- the filler 83 e reacts with the substance supplied from the tank 506 to generate heat, a temporary temperature rise is obtained as shown in FIG.
- the gas pressure generated by the chemical reaction caused by the filler 83 e and the substance supplied from the tank 506 can obtain a parallel state in which the chemical reaction is reversible.
- the gas pressure remains at a value corresponding to the parallel state of the reaction system regardless of the supply amount of the substance from the tank 506. Therefore, the fuel cell is tightened at the gas pressure value.
- the internal pressure can be selected in advance depending on the substance for selecting the internal pressure of the separator after completion of the fuel cell.
- the tightening pressure depends on the internal resistance that fluctuates as the current density obtained from the fuel cell increases or decreases. That is, the gas pressure rises or falls as the internal resistance changes.
- the temperature of the gas in the separator When the fuel cell stops or terminates its power generation operation and the cell temperature returns to room temperature, the temperature of the gas in the separator also reaches room temperature, which is generated by a chemical reaction. The state returns to the state of the tightening pressure at the time of the generated gas.
- a substance to be subjected to a chemical reaction is preliminarily filled in the chamber 25 or 204 when the separator is assembled.
- a substance that reacts with the pre-filled substance is supplied from a tank 506 as shown in FIG.
- an inert gas nitrogen, argon, helium, etc.
- an inert gas for storing the fuel cell, which is present in the fuel cell, is degassed and removed using the vacuum pump 5 12.
- the internal pressure of the separator after completion of the fuel cell can be selected in advance according to the supply amount of the substance.
- the tightening pressure when the fuel cell generates power is considered as a change in the calorific value of the internal resistance of the fuel cell as the current density increases or decreases. For example, when the calorific value increases, the gas pressure increases, and when the calorific value decreases, the gas pressure decreases.
- the temperature of the fuel cell is returned to the room temperature.
- the temperature of the gas in the separator also returned to room temperature, and was initially obtained by a chemical reaction based on the filler 83 e and the substance supplied from the tank 506.
- the state returns to the state of the tightening pressure.
- the assembly of Separee is performed at room temperature, and a metal hydride is provided in the room 25 or 204.
- the decomposition temperature of the metal hydride is in the operating area of the fuel cell Therefore, a combination of a plurality of metal hydrides may be considered. In this embodiment, however, a single metal hydride is used.
- the filler material 83 g exceeds the hydrogen release temperature of metal hydride, it releases hydrogen gas, so the pressure in the separator increases and a tightening pressure is generated.
- the pressure based on hydrogen gas rises or falls due to heat generated by the internal resistance of the cell as the current density increases and decreases during fuel cell power generation. Therefore, the change in pressure appears as the tightening pressure of the fuel cell by the hydrogen gas.
- the temperature of the cell decreases as it returns to room temperature, and the released hydrogen gas begins to be absorbed by the metal hydride. Therefore, the pressure of the hydrogen gas decreases, and the tightening pressure also decreases. When the temperature of the fuel cell returns to room temperature, the tightening pressure will show the same value as when the fuel cell was assembled.
- a filler 83 h that can be deformed by heat can be used. In this embodiment, first, the fuel cell unit is assembled at room temperature. At that time, the first separator 16 or the third separator 152 is made of the shape memory alloy itself.
- the operating temperature of the shape memory alloy is selected between the operating temperature of the fuel cell and the room temperature, and at this time, the shape memory alloy that changes shape in one direction and the shape memory alloy that changes shape in two directions are selected.
- the shape memory alloy may be deformed or misaligned.
- the temperature control heat exchanger, the refrigerant tank, and the circulation pump are connected to the communication holes 50 and 52, respectively, as in FIG. 18 in order to improve the temperature control characteristics. Therefore, when a shape memory alloy that produces a one-way effect is used, when the operating temperature of the fuel cell exceeds the operating temperature of the shape memory alloy, the first separator 16 and the third separator 15 2 Displacement increases clamping pressure. Even if the power generation operation of the fuel cell stops or ends and the cell temperature returns to room temperature, the clamping pressure will be maintained due to the one-way effect.
- a filler that expands and contracts, or a substance that induces a chemical reaction, and a substance that itself deforms due to heat or the like are arranged in a separator or a clamping pressure generating plate.
- the fuel cell unit is configured to be tightened after the assembly is completed or when the fuel cell unit is operated. Accordingly, the clamping pressure applied to the unit fuel cells is averaged, and the output taken out is substantially equal. That is, the output can be taken out stably without variation in contact resistance and the like applied to ionic conduction and electronic conduction. The effect is obtained.
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Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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DE69633571T DE69633571T2 (de) | 1995-07-07 | 1996-07-04 | Brennstoffzelle und verfahren zu deren befestigung |
EP96922223A EP0851519B1 (en) | 1995-07-07 | 1996-07-04 | Fuel cell and method of its fastening |
US08/981,327 US6696185B1 (en) | 1995-07-07 | 1997-12-24 | Fuel cell and fastening method therefor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7/172579 | 1995-07-07 | ||
JP17257995A JP3505010B2 (ja) | 1995-07-07 | 1995-07-07 | 燃料電池およびその締付方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/981,327 Continuation US6696185B1 (en) | 1995-07-07 | 1997-12-24 | Fuel cell and fastening method therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997003477A1 true WO1997003477A1 (fr) | 1997-01-30 |
Family
ID=15944464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP1996/001852 WO1997003477A1 (fr) | 1995-07-07 | 1996-07-04 | Pile a combustible et son procede de fixation |
Country Status (5)
Country | Link |
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US (1) | US6696185B1 (ja) |
EP (1) | EP0851519B1 (ja) |
JP (1) | JP3505010B2 (ja) |
DE (1) | DE69633571T2 (ja) |
WO (1) | WO1997003477A1 (ja) |
Cited By (1)
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US6696185B1 (en) * | 1995-07-07 | 2004-02-24 | Honda Giken Kogyo Kabushiki Kaisha | Fuel cell and fastening method therefor |
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US6479177B1 (en) * | 1996-06-07 | 2002-11-12 | Ballard Power Systems Inc. | Method for improving the cold starting capability of an electrochemical fuel cell |
US6705868B1 (en) * | 1998-03-18 | 2004-03-16 | Purdue Research Foundation | Apparatus and methods for a shape memory spring actuator and display |
GB2370407B (en) * | 1998-12-01 | 2003-05-14 | Ballard Power Systems | Method and apparatus for controlling the temperature within an electrochemical fuel cell |
US7077939B1 (en) * | 2001-06-18 | 2006-07-18 | The Texas A&M University System | Method and apparatus for nanoparticle transport and detection |
JP3807370B2 (ja) | 2003-01-06 | 2006-08-09 | 株式会社日立製作所 | 燃料電池 |
US7135076B2 (en) * | 2003-08-04 | 2006-11-14 | Lockheed Martin Corporation | Memory metal activation system |
US7241521B2 (en) | 2003-11-18 | 2007-07-10 | Npl Associates, Inc. | Hydrogen/hydrogen peroxide fuel cell |
JP2005285350A (ja) * | 2004-03-26 | 2005-10-13 | Matsushita Electric Ind Co Ltd | 高分子電解質型燃料電池 |
US20080014492A1 (en) * | 2006-07-14 | 2008-01-17 | Jens Ulrick Nielsen | Compression assembly, solid oxide fuel cell stack, a process for compression of the solid oxide fuel cell stack and its use |
EP1879251B1 (en) * | 2006-07-14 | 2012-06-06 | Topsøe Fuel Cell A/S | Compression assembly, solid oxide fuel cell stack, a process for compression of the solid oxide fuel cell stack and its use |
DK2330674T3 (en) | 2008-10-02 | 2015-04-20 | Ngk Spark Plug Co | Solid oxide fuel cell battery |
JP5218232B2 (ja) * | 2009-04-08 | 2013-06-26 | トヨタ自動車株式会社 | 燃料電池 |
US20130330638A1 (en) * | 2012-06-12 | 2013-12-12 | GM Global Technology Operations LLC | Coated substrate and product including the same and methods of making and using the same |
KR101360269B1 (ko) * | 2012-11-30 | 2014-02-12 | 한국과학기술연구원 | 전기화학적 이산화탄소 전환용 콤팩트 반응기 |
CN110429314A (zh) * | 2013-03-08 | 2019-11-08 | 努威拉燃料电池有限责任公司 | 电化学堆压缩系统 |
JP6285701B2 (ja) * | 2013-11-29 | 2018-02-28 | 株式会社フジクラ | 燃料電池スタック、燃料電池スタックの製造方法、電池サブアッセンブリ、電池サブアッセンブリの製造方法、及びガスケットが仮固定又は本固定されたセパレータ |
DE202014002512U1 (de) * | 2014-03-18 | 2015-06-25 | Reinz-Dichtungs-Gmbh | Elektrochemisches System |
KR102600089B1 (ko) * | 2018-10-12 | 2023-11-07 | 주식회사 엘지에너지솔루션 | 배터리 모듈 |
DE102019219784A1 (de) * | 2019-12-17 | 2021-06-17 | Robert Bosch Gmbh | Brennstoffzelle mit einer Nachstellvorrichtung zum Ausgleich des Setzverhaltens innerhalb des Stapelaufbaus |
DE102019219795A1 (de) * | 2019-12-17 | 2021-06-17 | Robert Bosch Gmbh | Brennstoffzelle mit einer Nachstellvorrichtung zum Ausgleich des Setzverhaltens innerhalb eines Stapelaufbaus |
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JPS6037675A (ja) * | 1983-08-09 | 1985-02-27 | Agency Of Ind Science & Technol | 溶融炭酸塩燃料電池 |
JPS6255874U (ja) * | 1985-09-27 | 1987-04-07 | ||
JPS62149166U (ja) * | 1986-03-13 | 1987-09-21 | ||
JPH05266912A (ja) * | 1991-10-25 | 1993-10-15 | Mc Power Corp | 燃料電池スタック、燃料電池スタックの締め付け力を均等化する装置及び方法 |
JPH0668898A (ja) * | 1992-06-18 | 1994-03-11 | Honda Motor Co Ltd | 燃料電池セパレータおよび燃料電池のスタック内締め付け方法 |
Non-Patent Citations (1)
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6696185B1 (en) * | 1995-07-07 | 2004-02-24 | Honda Giken Kogyo Kabushiki Kaisha | Fuel cell and fastening method therefor |
Also Published As
Publication number | Publication date |
---|---|
JPH0922720A (ja) | 1997-01-21 |
EP0851519A1 (en) | 1998-07-01 |
JP3505010B2 (ja) | 2004-03-08 |
DE69633571D1 (de) | 2004-11-11 |
US6696185B1 (en) | 2004-02-24 |
DE69633571T2 (de) | 2005-02-03 |
EP0851519B1 (en) | 2004-10-06 |
EP0851519A4 (en) | 2000-09-13 |
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