WO2013094454A1 - 燃料電池スタック - Google Patents
燃料電池スタック Download PDFInfo
- Publication number
- WO2013094454A1 WO2013094454A1 PCT/JP2012/081909 JP2012081909W WO2013094454A1 WO 2013094454 A1 WO2013094454 A1 WO 2013094454A1 JP 2012081909 W JP2012081909 W JP 2012081909W WO 2013094454 A1 WO2013094454 A1 WO 2013094454A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel cell
- cell stack
- end plate
- fuel
- cooling medium
- 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
- H01M8/248—Means for compression of the fuel cell stacks
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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
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
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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
- H01M8/0297—Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other
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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
-
- 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
- H01M8/2457—Grouping of fuel cells, e.g. stacking of fuel cells with both reactants being gaseous or vaporised
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
- H01M8/2485—Arrangements for sealing external manifolds; Arrangements for mounting external manifolds around a stack
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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
- H01M2008/1095—Fuel cells with polymeric 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0247—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
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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 stack including a unit cell in which an electrolyte / electrode assembly and an separator in which electrodes are respectively provided on both sides of an electrolyte, and in which a plurality of the unit cells are horizontally stacked.
- an electrolyte membrane-electrode assembly having an anode electrode and a cathode electrode disposed on both sides of an electrolyte membrane made of a polymer ion exchange membrane is sandwiched by a pair of separators It has a unit cell.
- a fuel cell of this type has a predetermined number of unit cells stacked, and terminal plates, insulating plates and end plates are disposed at both ends in the stacking direction, for example, used as a fuel cell stack for vehicles ing.
- the fuel cell stack described above may constitute a so-called internal manifold type fuel cell stack in which communication holes for passing the fuel gas, the oxidant gas and the cooling medium are formed along the stacking direction of the unit cells. For this reason, in the fuel cell stack, a manifold member connected to the communication hole is attached to the end plate.
- the fuel cell stack adopts various mounting structures in order to fix the fuel cell stack to an installation site of a fuel cell vehicle or the like.
- a fuel cell stack disclosed in Japanese Patent No. 4165876, as shown in FIG. 11 a laminate 1 in which a plurality of unit cells are stacked is accommodated in a box-like casing 2 and the casing 2 has end plates 3a and 3b as end plates.
- Manifold piping members 4a and 4b are attached to one end plate 3a by a plurality of screws (fastening members) 5a. Further, mounting brackets 6 are fixed to the lower sides of the end plates 3a and 3b via screws 5b. Each mounting bracket 6 is attached to an installation site (for example, a car body) via a plurality of screws 5c.
- each mounting bracket 6 is fixed to the end plates 3a and 3b only through the screw 5b, the mounting bracket 6 itself needs to have sufficient rigidity. Therefore, the mounting bracket 6 may be considerably enlarged.
- the mounting bracket 6 is fixed to the end plates 3a, 3b via the screws 5b. For this reason, a considerable space is required to arrange the screw 5b, and the end plates 3a and 3b themselves may be enlarged.
- the present invention is intended to solve this type of problem, and it is an object of the present invention to provide a fuel cell stack capable of well installing the fuel cell stack at the installation site with a simple and compact configuration.
- the present invention comprises a unit cell in which an electrolyte / electrode assembly and an separator are provided on both sides of the electrolyte, and a plurality of unit cells are horizontally stacked, and at least along the stacking direction.
- the present invention relates to a fuel cell stack having a stack in which communication holes through which a fuel gas, an oxidant gas or a cooling medium flow is formed, and end plates disposed at both ends in the stacking direction of the stack.
- a manifold member connected to the communication hole is fixed to at least one end plate by a fastening member, and the end plate is provided with a recess at its lower end, so that the recess is formed at the lower end
- a pair of mount parts which project below on both sides of are integrally provided.
- a pair of mount parts are being fixed to the installation part for installing a fuel cell stack.
- the fastening member is disposed in the pair of mount portions.
- the end plate has a flat surface on which the manifold member is attached, including the mount portion.
- a plurality of recesses be provided at the lower end of the end plate.
- the end plate is preferably fixed to the bottom of the mount by a screw.
- the pair of mount portions are integrally provided so as to project downward on both sides of the lower end portion of the end plate, the configuration of the pair of mount portions is simplified and the number of parts is favorably reduced. Ru. Therefore, the fuel cell stack can be well installed at the installation site with a simple and compact configuration.
- FIG. 1 is a schematic perspective view of a fuel cell stack according to a first embodiment of the present invention. It is a principal part disassembled perspective explanatory view of a unit cell which constitutes the fuel cell stack. It is front explanatory drawing of the said fuel cell stack.
- FIG. 6 is a schematic perspective view of a fuel cell stack according to a second embodiment of the present invention. It is a principal part disassembled perspective explanatory view of a unit cell which constitutes the fuel cell stack.
- FIG. 6 is a front view from one end plate side of the fuel cell stack. It is a front view from the other end plate side of the fuel cell stack.
- FIG. 6 is a front view from one end plate side of the fuel cell stack. It is a front view from the other end plate side of the fuel cell stack. It is perspective explanatory drawing of the fuel cell stack currently disclosed by the patent 4165876 gazette.
- a fuel cell stack 10 includes a unit cell 12, and a plurality of the unit cells 12 are stacked in the horizontal direction (arrow A direction) in a standing position.
- the laminate 14 is formed.
- End plates 16a and 16b are disposed at both ends in the stacking direction of the stacked body 14, and the end plates 16a and 16b are fixed to both ends of a plurality of connecting bars 18 via screws 20, and Apply a clamping load in the stacking direction.
- a tie rod may be used instead of the connection bar 18, or the stack 14 may be accommodated in a box.
- a terminal plate and an insulating plate are disposed between the laminate 14 and the end plates 16a and 16b.
- the unit cell 12 includes an electrolyte membrane electrode assembly 22, and a first metal separator 24 and a second metal separator 26 sandwiching the electrolyte membrane electrode assembly 22.
- the first metal separator 24 and the second metal separator 26 are made of, for example, a steel plate, a stainless steel plate, an aluminum plate, a plated steel plate, or a metal plate whose surface is subjected to surface treatment for corrosion prevention.
- the first metal separator 24 and the second metal separator 26 have a rectangular planar shape, and are formed into an uneven cross-sectional shape by pressing a thin metal plate into a corrugated shape.
- a carbon separator may be used.
- the first metal separator 24 and the second metal separator 26 have a horizontally long shape, and the long side is directed in the horizontal direction (arrow B direction) and the short side is directed in the gravity direction (arrow C direction) (horizontal stacking) Configured as.
- the short sides may be oriented horizontally and the long sides may be oriented in the direction of gravity.
- an oxidant gas supply communication hole 28a for supplying an oxidant gas, for example, an oxygen-containing gas, in communication with each other in the arrow A direction
- a fuel gas supply passage 30a for supplying a fuel gas, for example, a hydrogen-containing gas.
- the fuel gas discharge passage 30b for discharging the fuel gas and the oxidant gas for discharging the oxidant gas are communicated with each other in the arrow A direction.
- a discharge communication hole 28b is provided.
- Two cooling medium supply communication holes 32a for supplying a cooling medium in communication with each other in the direction of arrow A at one end (reactant gas inlet side) of both ends in the short side direction (arrow C direction) of the unit cell 12 Is provided.
- Two cooling medium discharge communication holes 32 b for discharging the cooling medium are provided on the other (in the reaction gas outlet side) of both end edges in the short side direction of the unit cell 12.
- the electrolyte membrane / electrode assembly 22 includes, for example, a solid polymer electrolyte membrane 34 in which a thin film of perfluorosulfonic acid is impregnated with water, and a cathode electrode 36 and an anode electrode 38 sandwiching the solid polymer electrolyte membrane 34.
- a gas diffusion layer made of carbon paper or the like, and porous carbon particles carrying a platinum alloy on the surface are uniformly coated on the surface of the gas diffusion layer.
- an electrode catalyst layer (not shown) to be formed.
- the electrode catalyst layer is formed on both sides of the solid polymer electrolyte membrane 34.
- An oxidant gas flow passage 40 communicating the oxidant gas supply passage 28 a with the oxidant gas discharge passage 28 b is formed on the surface 24 a of the first metal separator 24 facing the membrane electrode assembly 22.
- the oxidant gas channel 40 is formed of a plurality of corrugated channel grooves extending in the arrow B direction.
- a fuel gas passage 42 is formed, which communicates the fuel gas supply passage 30a with the fuel gas discharge passage 30b.
- the fuel gas flow channel 42 is formed by a plurality of corrugated flow channel grooves extending in the arrow B direction.
- a cooling medium channel 44 communicating with the cooling medium supply communication holes 32 a, 32 a and the cooling medium discharge communication holes 32 b, 32 b is provided. It is formed.
- the cooling medium channel 44 circulates the cooling medium over the electrode range of the membrane electrode assembly 22.
- the first seal member 46 is integrally formed on the surfaces 24 a and 24 b of the first metal separator 24 around the outer peripheral edge of the first metal separator 24.
- a second seal member 48 is integrally formed on the surfaces 26 a and 26 b of the second metal separator 26 around the outer peripheral edge of the second metal separator 26.
- sealing materials such as EPDM, NBR, fluororubber, silicone rubber, fluorosilicone rubber, butyl rubber, natural rubber, styrene rubber, chloroprene or acrylic rubber, cushion material Or packing material is used.
- the end plates 16a and 16b are provided with recesses 50a and 50b at the center of each lower end portion, so that the pair of mount portions 52a and 52b projecting downward on both sides of the lower end portion are integrated.
- the recessed portions 50a and 50b are provided with a rectangular opening shape in a range spaced apart by a distance L from the lower end position of the end plates 16a and 16b and a distance H in the horizontal direction. The distances L and H are set in accordance with the mounting position of the manifold member, as described later.
- Screw holes 54a and 54b are formed at the bottom of each mount 52a and 52b.
- a plurality of screw holes 54a and 54b may be provided.
- the mounts 52a and 52b directly or cover members (not shown) at the installation site, for example, a vehicle body frame of a fuel cell vehicle (not shown). And other members such as brackets are fixed.
- the end plates 16a and 16b are formed flat on the entire surface including the mounts 52a and 52b.
- the manifold members 60 and 62 are mounted on the end plate 16 a at the one end edge in the long side direction via the plurality of screws (fastening members) 63 vertically.
- the manifold member 60 is provided with a pipe 60a communicating with the oxidizing gas supply passage 28a, while the manifold member 62 is provided with a pipe 62a communicating with the fuel gas supply passage 30a.
- the fastening member is not limited to the screw 63, and a general mechanical clamping mechanism may be used.
- the manifold members 64 and 66 are mounted on the upper end and the lower end of the end plate 16 a via the plurality of screws 63 respectively.
- the manifold member 64 is provided with a pipe 64a communicating with the fuel gas discharge communication hole 30b, while the manifold member 66 is provided with a pipe 66a communicating with the oxidant gas discharge communication hole 28b.
- a manifold member 68 is attached to the upper end edge in the short side direction of the end plate 16a via a plurality of screws 63, and a plurality of manifold members 70 are installed at the lower end edge portion in the short side direction of the end plate 16a.
- the screw 63 is attached.
- the manifold member 68 is provided with a pipe 68a communicating with the cooling medium supply passage 32a and a pipe 68b communicating with the cooling medium discharge passage 32b.
- the manifold member 70 is provided with a pipe 70a communicating with the cooling medium supply communication hole 32a and a pipe 70b communicating with the cooling medium discharge communication hole 32b.
- lower screws 63 which are fastening points, are provided in the area of the mounts 52a, 52b.
- the lower screw 63 is located in the range of the recess 50a along the horizontal direction, that is, in the range of the height L (in the direction of the arrow C) of the recess 50a.
- the distances L and H of the recesses 50a are in particular set to the maximum dimension with which the manifold members 62, 66 and 70 can be efficiently fixed to the end plate 16a by means of the screws 63.
- an oxidant gas such as an oxygen-containing gas is supplied from the pipe 60a to the oxidant gas supply passage 28a, and a pipe 62a is used to feed the fuel gas supply passage 30a.
- a fuel gas such as a hydrogen-containing gas.
- a cooling medium such as pure water, ethylene glycol, or oil is supplied from the pipes 68a, 70a to the pair of cooling medium supply communication holes 32a.
- the oxidant gas is introduced from the oxidant gas supply passage 28 a into the oxidant gas flow path 40 of the first metal separator 24.
- the oxidant gas moves in the direction of arrow B along the oxidant gas flow path 40 and is supplied to the cathode electrode 36 of the membrane electrode assembly 22.
- the fuel gas is supplied from the fuel gas supply passage 30 a to the fuel gas channel 42 of the second metal separator 26.
- the fuel gas moves along the fuel gas flow path 42 in the direction of arrow B and is supplied to the anode 38 of the membrane electrode assembly 22.
- the oxidant gas supplied to the cathode electrode 36 and the fuel gas supplied to the anode electrode 38 are consumed by the electrochemical reaction in the electrode catalyst layer to generate electricity. It will be.
- the oxidant gas supplied and consumed to the cathode electrode 36 of the membrane electrode assembly 22 flows in the direction of arrow A along the oxidant gas discharge passage 28b and is discharged from the pipe 66a (see FIG. 3).
- the fuel gas supplied and consumed to the anode electrode 38 of the membrane electrode assembly 22 flows in the direction of arrow A along the fuel gas discharge passage 30b and is discharged from the pipe 64a (see FIG. 3). ).
- the cooling medium supplied to the pair of cooling medium supply communication holes 32 a is introduced into the cooling medium channel 44 between the first metal separator 24 and the second metal separator 26.
- the coolant once flows inward in the direction of arrow C, and then moves in the direction of arrow B to cool the membrane electrode assembly 22.
- the cooling medium moves outward in the direction of arrow C, and then flows through the pair of cooling medium discharge communication holes 32b, and is discharged from the pipes 68b and 70b.
- the end plates 16a and 16b project downward on both sides of the lower end by providing the recesses 50a and 50b in the center of each lower end.
- the pair of mount portions 52a and 52b are integrally provided.
- screws (fastening members) 63 for fixing the manifold members 62 and 66 connected to the fuel gas supply passage 30a and the oxidant gas discharge passage 28b of the fuel cell stack 10 to the end plate 16a. are disposed in the area of the mount portion 52a. Therefore, the dimensions of the end plates 16a and 16b in the height direction (arrow C direction) can be shortened as much as possible, and the fuel cell stack 10 can be favorably installed at the installation site with a simple and compact configuration. Effect is obtained.
- FIG. 4 is a schematic perspective view of a fuel cell stack 80 according to a second embodiment of the present invention.
- the same components as those of the fuel cell stack 10 according to the first embodiment are designated by the same reference numerals, and the detailed description thereof is omitted.
- the fuel cell stack 80 includes a stack 14 in which a plurality of unit cells 82 are stacked in the horizontal direction (direction of arrow A) in a standing position.
- End plates 84 a and 84 b are disposed at both ends in the stacking direction of the laminate 14, and the end plates 84 a and 84 b are fixed by a plurality of connecting bars 18.
- the connecting bar 18 has both end surfaces in contact with the inner plate surfaces of the end plates 84a and 84b, and a screw 20 is screwed to each end surface from the outer plate surface of the end plates 84a and 84b in the stacking direction.
- the unit cell 82 sandwiches the membrane electrode assembly 86 between the first metal separator 88 and the second metal separator 90.
- the oxidant gas flow direction of the oxidant gas supply passage 28a and the fuel gas flow direction of the fuel gas supply passage 30a are opposite to the coolant flow direction of the coolant supply passage 32a in the stacking direction. Set in the direction.
- the oxidant gas flow direction of the oxidant gas discharge communication hole 28b and the fuel gas flow direction of the fuel gas discharge communication hole 30b are opposite to the cooling medium flow direction of the cooling medium discharge communication hole 32b in the stacking direction. It is set.
- the end plates 84a and 84b are provided with recesses 92a and 92b at the centers of the respective lower end portions.
- Recesses 94a and 96a are provided on both sides of recess 92a at a predetermined distance
- recesses 94b and 96b are provided on both sides of recess 92b at a predetermined distance.
- a pair of mounts 98a, 100a are provided between the recess 92a and the recesses 94a, 96a, and a pair of mounts 102a, 104a are outside the recesses 94a, 96a.
- the end plate 84b is provided with mount portions 98b, 100b, 102b and 104b via the recesses 92b, 94b and 96b.
- Manifold members 106 and 108 are attached to the end plate 84 a at the one end edge in the long side direction via screws 63 respectively.
- the manifold member 106 is provided with a pipe 106a communicating with the oxidant gas supply passage 28a, while the manifold member 108 is provided with a pipe 108a communicating with the fuel gas supply passage 30a.
- Manifold members 110 and 112 are attached to the end plate 84 a at the other end in the long side direction via screws 63.
- the manifold member 110 is provided with a pipe 110a communicating with the fuel gas discharge communication hole 30b, while the manifold member 112 is provided with a pipe 112a communicating with the oxidant gas discharge communication hole 28b.
- the manifold members 114 and 116 are attached to the end plate 84b at the upper end edge in the short side direction via the screw 63, and the lower end edge portion in the short side direction of the end plate 84b is
- the manifold members 118, 120 are attached via screws 63.
- Manifold members 114 and 118 arranged at the top and bottom have pipes 114a and 118a communicating with the respective cooling medium supply communication holes 32a, and these are connected to a single pipe 122.
- the manifold members 116 and 120 disposed at the top and bottom have pipes 116 a and 120 a communicating with the respective cooling medium discharge communication holes 32 b, and these are connected to a single pipe 124.
- the lower end portion of the end plate 84a is integrally provided with a pair of mount portions 98a and 100a across the recess 92a, and a pair across the recesses 94a and 96a.
- the mounts 102a and 104a are integrally provided.
- the mount portions 98b and 100b are integrally provided on both sides of the concave portion 92b, and the mount portions 102b and 104b are integrally provided on both sides of the concave portions 94b and 96b. Therefore, the same effects as those of the first embodiment can be obtained, such as the configuration being simplified at once, as compared with the case where the mounting structure is configured by separate members from the end plates 84a and 84b.
- FIG. 8 is a schematic perspective view of a fuel cell stack 130 according to a third embodiment of the present invention.
- the same components as those of the fuel cell stack 80 according to the second embodiment are designated by the same reference numerals, and the detailed description thereof is omitted.
- the fuel cell stack 130 arranges the end plates 132 a and 132 b at both ends in the stacking direction of the stack 14. As shown in FIG. 9, the end plate 132a is provided with recesses 134a and 136a on both sides of the lower central portion, and is provided with recesses 138a and 140a at predetermined intervals outward from the recesses 134a and 136a. A mount portion 142a is formed between the concave portions 134a and 138a, and a mount portion 144a is formed between the concave portions 136a and 140a.
- Mount portions 146a and 148a are formed on the outer side of the concave portions 138a and 140a, respectively.
- the depths of the recesses 134a and 136a are spaced upward from the lower end position of the end plate 132a by a distance L1.
- the mounts 142b, 144b, 146b and 148b are formed by providing the recesses 134b, 136b, 138b and 140b.
- the manifold members 106, 108, 110 and 112 are fixed to the end plate 132 a by screws 63.
- the manifold members 114 and 116 are fixed to the end plate 132 b by screws 63.
- the depths of the recesses 134b and 136b are spaced upward from the lower end position of the end plate 132b by a distance L1, and the lower screw 63 for fixing the manifold members 118 and 120 is disposed within the distance L1.
- the distance L1 and the distance L may be set to the same dimension, or the distance L1 and the distance L may be set to different dimensions depending on the shape of the attachment member or the like.
- the same effects as those of the first and second embodiments described above can be obtained.
Abstract
Description
また、この燃料電池スタックでは、一対のマウント部には、締結部材の少なくとも一部が配置されることが好ましい。
さらに、この燃料電池スタックでは、エンドプレートは、マニホールド部材を取り付ける表面が、マウント部を含んで平坦面に形成されることが好ましい。
さらにまた、この燃料電池スタックでは、エンドプレートの下端部に、凹部が複数設けられることが好ましい。
また、この燃料電池スタックでは、エンドプレートは、マウント部の底部がねじにより固定されることが好ましい。
燃料電池スタック80は、複数の単位セル82が立位姿勢で水平方向(矢印A方向)に積層された積層体14を備える。
Claims (5)
- 電解質(34)の両側にそれぞれ電極(36、38)が設けられる電解質・電極構造体(22)とセパレータ(24、26)とが積層される単位セル(12)を備え、複数の前記単位セル(12)が水平方向に積層されるとともに、積層方向に沿って少なくとも燃料ガス、酸化剤ガス又は冷却媒体が流通する連通孔(30a)が形成される積層体(14)と、前記積層体(14)の積層方向両端に配置されるエンドプレート(16a、16b)とを有する燃料電池スタック(10)であって、
少なくとも一方の前記エンドプレート(16a)には、前記連通孔(30a)に連なるマニホールド部材(62)が締結部材(63)により固定されるとともに、
前記エンドプレート(16a)は、下端部に凹部(50a)が設けられることにより、前記下端部に前記凹部(50a)を挟んで下方に突出する一対のマウント部(52a)が一体に設けられることを特徴とする燃料電池スタック。 - 請求項1記載の燃料電池スタックにおいて、前記一対のマウント部(52a)には、前記締結部材(63)の少なくとも一部が配置されることを特徴とする燃料電池スタック。
- 請求項1又は2記載の燃料電池スタックにおいて、前記エンドプレート(16a)は、前記マニホールド部材(62)を取り付ける表面が、前記マウント部(52a)を含んで平坦面に形成されることを特徴とする燃料電池スタック。
- 請求項1記載の燃料電池スタックにおいて、前記エンドプレート(84a)の下端部に、前記凹部(94a、96a)が複数設けられることを特徴とする燃料電池スタック。
- 請求項1記載の燃料電池スタックにおいて、前記エンドプレート(16a)は、前記マウント部(52a)の底部がねじ(56)により固定されることを特徴とする燃料電池スタック。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280062180.5A CN103999278A (zh) | 2011-12-21 | 2012-12-10 | 燃料电池堆 |
DE112012005372.9T DE112012005372T5 (de) | 2011-12-21 | 2012-12-10 | Brennstoffzellenstapel |
JP2013550228A JP5710786B2 (ja) | 2011-12-21 | 2012-12-10 | 燃料電池スタック |
US14/367,012 US20140349210A1 (en) | 2011-12-21 | 2012-12-10 | Fuel cell stack |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2011280134 | 2011-12-21 | ||
JP2011-280134 | 2011-12-21 |
Publications (1)
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WO2013094454A1 true WO2013094454A1 (ja) | 2013-06-27 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2012/081909 WO2013094454A1 (ja) | 2011-12-21 | 2012-12-10 | 燃料電池スタック |
Country Status (5)
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US (1) | US20140349210A1 (ja) |
JP (1) | JP5710786B2 (ja) |
CN (1) | CN103999278A (ja) |
DE (1) | DE112012005372T5 (ja) |
WO (1) | WO2013094454A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014156152A1 (ja) * | 2013-03-26 | 2014-10-02 | パナソニック株式会社 | 燃料電池スタック |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11482742B2 (en) * | 2017-07-31 | 2022-10-25 | Panasonic Intellectual Property Management Co., Ltd. | Battery module, battery pack, and integrated battery pack |
CN107623096B (zh) * | 2017-09-20 | 2020-09-04 | 中国东方电气集团有限公司 | 燃料电池堆减震装置 |
Citations (6)
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JP2001236982A (ja) * | 2000-02-25 | 2001-08-31 | Toray Ind Inc | 燃料電池用エンドプレートおよび燃料電池 |
JP2002042853A (ja) * | 2000-07-19 | 2002-02-08 | Toyota Motor Corp | 燃料電池 |
JP2005203301A (ja) * | 2004-01-19 | 2005-07-28 | Honda Motor Co Ltd | 燃料電池及び燃料電池スタック |
JP2007188773A (ja) * | 2006-01-13 | 2007-07-26 | Honda Motor Co Ltd | 燃料電池スタック |
JP2009004254A (ja) * | 2007-06-22 | 2009-01-08 | Honda Motor Co Ltd | 燃料電池スタックの組み立て方法 |
JP2009004270A (ja) * | 2007-06-22 | 2009-01-08 | Toyota Motor Corp | 燃料電池ケース |
-
2012
- 2012-12-10 WO PCT/JP2012/081909 patent/WO2013094454A1/ja active Application Filing
- 2012-12-10 US US14/367,012 patent/US20140349210A1/en not_active Abandoned
- 2012-12-10 DE DE112012005372.9T patent/DE112012005372T5/de not_active Withdrawn
- 2012-12-10 JP JP2013550228A patent/JP5710786B2/ja active Active
- 2012-12-10 CN CN201280062180.5A patent/CN103999278A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001236982A (ja) * | 2000-02-25 | 2001-08-31 | Toray Ind Inc | 燃料電池用エンドプレートおよび燃料電池 |
JP2002042853A (ja) * | 2000-07-19 | 2002-02-08 | Toyota Motor Corp | 燃料電池 |
JP2005203301A (ja) * | 2004-01-19 | 2005-07-28 | Honda Motor Co Ltd | 燃料電池及び燃料電池スタック |
JP2007188773A (ja) * | 2006-01-13 | 2007-07-26 | Honda Motor Co Ltd | 燃料電池スタック |
JP2009004254A (ja) * | 2007-06-22 | 2009-01-08 | Honda Motor Co Ltd | 燃料電池スタックの組み立て方法 |
JP2009004270A (ja) * | 2007-06-22 | 2009-01-08 | Toyota Motor Corp | 燃料電池ケース |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014156152A1 (ja) * | 2013-03-26 | 2014-10-02 | パナソニック株式会社 | 燃料電池スタック |
JP5613865B1 (ja) * | 2013-03-26 | 2014-10-29 | パナソニック株式会社 | 燃料電池スタック |
Also Published As
Publication number | Publication date |
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JP5710786B2 (ja) | 2015-04-30 |
CN103999278A (zh) | 2014-08-20 |
JPWO2013094454A1 (ja) | 2015-04-27 |
US20140349210A1 (en) | 2014-11-27 |
DE112012005372T5 (de) | 2014-09-04 |
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