WO2013164574A1 - Ensemble empilement de cellules de pile à combustible comprenant un ensemble plaque terminale pourvu d'un élément viscoélastique/élastique - Google Patents

Ensemble empilement de cellules de pile à combustible comprenant un ensemble plaque terminale pourvu d'un élément viscoélastique/élastique Download PDF

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Publication number
WO2013164574A1
WO2013164574A1 PCT/GB2013/051045 GB2013051045W WO2013164574A1 WO 2013164574 A1 WO2013164574 A1 WO 2013164574A1 GB 2013051045 W GB2013051045 W GB 2013051045W WO 2013164574 A1 WO2013164574 A1 WO 2013164574A1
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WO
WIPO (PCT)
Prior art keywords
slave
plate
master
fuel cell
cell stack
Prior art date
Application number
PCT/GB2013/051045
Other languages
English (en)
Inventor
Peter David Hood
Original Assignee
Intelligent Energy Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intelligent Energy Limited filed Critical Intelligent Energy Limited
Publication of WO2013164574A1 publication Critical patent/WO2013164574A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0223—Composites
    • 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
    • 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
    • H01M8/0221—Organic resins; Organic polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0223—Composites
    • H01M8/0228—Composites in the form of layered or coated products
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0276—Sealing means characterised by their form
    • H01M8/0278—O-rings
    • 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 methods and apparatus suitable for assembling an electrochemical fuel cell stack.
  • Fuel cell stacks comprise a series of individual fuel cells built up layer by layer into a stack arrangement.
  • Each cell itself may include various layered components such as a polymer electrolyte membrane, gas diffusion layers, fluid flow plates and various sealing gaskets for maintaining fluid tightness and providing fluid fuel and oxidant distribution to the active surfaces of the membrane.
  • a pair of pressure end plates coupled together by tie rods is conventionally used to hold the stack together and maintain compression on the cells in the stack.
  • the present invention provides a fuel cell stack assembly comprising: a plurality of fuel cells in a stack, the stack defining two opposing parallel end faces; an end plate assembly at each opposing end face of the stack, the end plate assemblies being coupled together to thereby maintain the fuel cells in the stack under compression; wherein at least one of the end plate assemblies comprises:
  • a master plate defining a master compression face
  • slave plate defining a slave compression face, the slave compression face facing the master compression face and being in compressive relationship therewith;
  • a hydraulic, a plastic or a viscoplastic interface disposed between the master compression face and the slave compression face.
  • the interface may be a viscoplastic materia).
  • the viscoplastic material may be a Bingham plastic.
  • the interface may comprise a generally planar or curved profile layer bounded by a containment structure extending along a peripheral edge of the interface.
  • the containment structure may be a peripheral seal coupling to the master compression face and to the slave compression face.
  • the peripheral seal may comprise an o-ring seal.
  • the interface may comprise a hydraulic fluid disposed within a containment structure.
  • the containment structure may be a bladder filled with the hydraulic fluid.
  • the bladder may be coupled to or integrated with the slave plate.
  • the slave plate may be integrated with an end element of the stack.
  • the slave plate may comprise a collector plate of the fuel cell stack.
  • the master compression face may have a first portion and a second portion at a reflex angle to one another and the slave compression face may have a corresponding first portion and second portion at an obtuse angle to one another, and the plastic or viscoplastic interface may comprises a first interface region between the respective first portions and a second interface region between the respective second portions.
  • the first and second interface regions may be separated and each bounded by a separate containment structure.
  • the reflex angle and the obtuse angle may be selected such that the respective portions of the master compression face and the slave compression face are non-parallel prior to application of a load to the end plate assemblies whereas, under the application of the load to maintain the fuel cells under compression, a bending moment in the master plate causes the master compression face and the slave compression face to come into a generally, or more, parallel relationship with one another by distortion of the master plate.
  • the slave plate may comprise a pair of separate elements each defining one of the first portion and the second portion.
  • the master compression face may define a convex surface, the convex surface being configured such that under the application of the load to maintain the fuel cells under compression, the bending moment in the master plate causes the master compression face and the slave compression face to come into a generally, or more, parallel relationship with one another.
  • the slave compression face may define a convex surface, the convex surface being configured such that under the application of the load to maintain the fuel cells under compression, the bending moment in the master plate causes the master compression face and the slave compression face to come into a generally, or more, parallel relationship with one another.
  • the master plate may be formed from a metal and the slave plate may be formed from a non-metal material.
  • the slave plate may extend laterally from the master plate on at least one side defining a lateral extension portion, the lateral extension portion comprising at least one fluid distribution gallery communicating with a fluid distribution gallery passing through the plurality of fuel cells in the stack.
  • the fuel cell stack assembly may include tie bars coupling the end plate assemblies together to maintain the fuel cells in the stack under compression, the tie bars extending through the master plate and the slave plate and being disposed inward of the lateral extension portion. Both of the end plate assemblies may comprise a master plate and a slave plate and a plastic or viscoplastic interface as described above.
  • the present invention provides a method of forming a fuel cell stack assembly comprising:
  • Figure 1 shows a perspective exploded view of a fuel cell end plate assembly comprising a master plate, a slave plate and a viscoplastic interface between;
  • Figure a shows a schematic cross-section of the master plate and slave plate indicating the angular relationship of compression surfaces
  • Figure 2 shows a schematic perspective view of an end of an assembled fuel cell stack incorporating an end plate assembly similar to that of figure 1 ;
  • Figure 3 shows a schematic perspective, partially cut-away view of an alternative fuel cell end plate assembly comprising a master plate, a slave plate and a viscoplastic interface between;
  • Figure 4 shows a cross-sectional view of the fuel cell end plate assembly of figure 3;
  • Figure 5 shows a schematic perspective view of an end of an assembled fuel cell stack incorporating an alternative end plate assembly to that of figure 1 ;
  • Figure 6 shows (a) a perspective view, (b) a partial cross-sectional view, (c) a plan view, and (d) an edge view of a hydraulic fluid bladder;
  • Figure 7 shows (a) a perspective view, (b) a partial cross-sectional view, (c) an edge view, (d) a plan view and (e) a cross-sectional view on line A-A of a hydraulic fluid bladder integrated onto a slave end plate.
  • a first embodiment of a fuel cell end plate assembly 1 is shown in exploded form in figure 1.
  • the end plate assembly 1 comprises a master plate 2 and a slave plate 3.
  • the master plate 2 defines a master compression surface 4 which, in this embodiment comprises a first portion 5 and a second portion 6.
  • the first and second portions are at an oblique angle to one another, and more particularly as shown in figure 1a there is a reflex angle ⁇ ⁇ between the first and second portions 5, 6 at an apex 7 between the first and second portions.
  • the slave plate 3 has a corresponding slave compression surface 8 facing away from the viewer in figure 1.
  • the slave compression surface 8 also comprises a first portion 9 and a second portion 10, only the edges of which are visible in figure 1.
  • the first and second portions of the slave compression surface 8 are also at an oblique angle to one another, and more particularly as shown in figure 1a there is an obtuse angle 9 S between the first and second portions 9, 10 at an apex 11 between the first and second portions 9, 10.
  • the slave plate 3 is shown as a single entity in figure 1, it could be formed in two parts (e.g. two halves) each defining one of the first portion 9 and the second portion 10 of the slave compression surface 8. The two halves could abut at the apex 11.
  • a viscoplastic interface 12 is provided between the master compression surface 4 and the slave compression surface 8 .
  • the viscoplastic interface is divided into a first interface region 13 and a second interface region 14.
  • the second interface region is shown detached from the second portion of master compression surface 4 for illustrative purposes only.
  • the viscoplastic interface 12 is bounded by a containment structure.
  • Each o-ring lies partially within a respective recess, rebate, groove, depression or channel 17 in the master plate and also partially within a respective recess, rebate, groove, depression or channel in the slave plate (not visible in figure 1).
  • Each o-ring provides a peripheral seal against the master compression face and the slave compression face.
  • an o-ring and a retaining feature e.g. a recess, rebate, groove, depression or channel in at least one of the master or slave compression faces
  • a containment structure may be regarded as examples of a containment structure.
  • the slave plate 3 includes a planar surface 18 configured for engagement with an end face of a stack of fuel cells.
  • the planar surface 18 may be uniformly flat or may comprise a series of pressure elements which themselves define a series of planar pressure surfaces distributed across the area of the plate which collectively define the planar surface 18.
  • the slave plate 3 may also include a number of fluid distribution structures 19 for delivery of fuel and / or oxidant to the cells in the stack in known manner.
  • Both the master plate 2 and the slave plate 3 include a number of apertures 20, 21 for the passage of tie-rods 22 (the ends of which can be seen in figure 2) for assembling the stack and for maintaining the stack in compression.
  • the master plate 2 may be formed as an open cell structure with voids 23 and connecting limbs 24 for a lighter weight construction for any given strength.
  • an end plate assembly 1 is applied to each end of a fuel cell stack 25, one end of which is shown in figure 2.
  • the stack 25 comprises a plurality of fuel cells 26 (not shown separately, but creating the stack 25 with each cell parallel to the slave plate planar surface 18).
  • the stack of cells therefore defines two opposing parallel end faces each of which engages with a respective slave plate.
  • a set of tie rods 22 passes through each end plate assembly 1 and binds them together thereby compressing the cells 26 in the stack 25.
  • the viscoplastic interface 12 is preferably formed from any plastic or viscoplastic material capable of limited or constrained plastic flow between the master compression surface 4 and the slave compression surface 8 under the conditions of compression necessary to maintain the fuel cell stack in correct configuration, i . e. with all layers of the fuel cell stack in proper contact and with all gasket seals operational.
  • T/GB2013/051045 any plastic or viscoplastic material capable of limited or constrained plastic flow between the master compression surface 4 and the slave compression surface 8 under the conditions of compression necessary to maintain the fuel cell stack in correct configuration, i . e. with all layers of the fuel cell stack in proper contact and with all gasket seals operational.
  • the performance of the plastic or viscoplastic interface is such as to enable it to locally redistribute itself (a) under the compressive forces applied to the end plate assemblies during assembly of the stack; (b) under any flexure of the master plate or slave plate under load; and (c) during the normal operation of the fuel cell causing thermal expansion of the stack and consequent distortion or changes in distortion of the end plate structures, including thermal expansion / contraction in a repetitive way from thermal cycling during periods of varying electrical load on the fuel cell.
  • the interface material 12 preferably has sufficient inherent structural integrity to enable it to be physically positioned during assembly and possibly also to be removed and repositioned during reassembly as a single manipulable self-supporting entity.
  • a hydraulic interface may alternatively be used in place of plastic or viscoplastic material.
  • the expression "hydraulic interface” is intended to encompass an interface comprising a contained volume of hydraulic fluid capable of redistributing itself within the contained volume under the compressive forces applied to the end plate assemblies, such that pressure is evenly transmitted between the master plate and slave plate in analogous manner to that described in connection with the plastic or viscoplastic interface above.
  • hydraulic interfaces include those using water, glycerine or other known hydraulic fluids, which are generally of very low compressibility or are non-compressible, within the range of pressures experienced between the master plate and the slave plate.
  • Examples of containment structures suitable for use with hydraulic fluids (and also with plastic or viscoplastic materials) include a flexible bladder, formed from any suitable flexible material such as rubber or metal. One example is shown in figure 6.
  • Figure 6 illustrates a hydraulic fluid bladder 60 comprising a pair of metal foil sheets 61 , 62 that are laser welded together to form seam 63 at peripheral edges 64.
  • the metal foil sheets 61, 62 together then define a hydraulic fluid cavity 65 therebetween.
  • the hydraulic fluid 66 fills this cavity 65.
  • such a bladder arrangement can also be used to contain plastic or viscoplastic material encased within.
  • the bladder may be fabricated from metal foil sheets 6 , 62 of 0.2 mm thickness to form a cavity 65 of 0.6 mm thickness. These thicknesses can be adapted to suit any particular fuel cell assembly to provide sufficient compression strength and thickness for accommodating end plate flexure.
  • the inclusion of the hydraulic, plastic or viscoplastic interface enables the material to locally redistribute itself to accommodate a localised divergence in the master compression surfaces and the slave compression surfaces.
  • Such localised divergence can arise as the compression forces vary as a result of varying thermal expansion.
  • This local redistribution of material ensures that consequential non-uniform pressure applied to the fuel cell stack by the slave plate surface 18 is reduced, minimised or even eliminated.
  • the interface unifies the distributed pressure between the master plate and the slave plate.
  • the plastic or viscoplastic material forming the interface 12 can be selected from any suitable material such as acrylic putty, silicone paste, mineral or synthetic grease etc.
  • One preferred class of materials for the interface 12 is Bingham plastics.
  • the plastic or viscoplastic material is selected from a material behaving as a rigid, semi-rigid or self-supporting body at low stress for ease of assembly of the end plates but which flows as a viscous fluid at high stress.
  • other materials such as powders (e . g. powdered marble, powdered plastics) could be used and, if necessary, contained within a bladder or other containment structure as described above in connection with hydraulic fluids. Materials which do not have rigid, semi-rigid or self-supporting properties could B2013/051045
  • the viscoplastic material 12 flows between the master plate 2 and the slave plate 3 compression surfaces 4, 8 in a hydraulic state and is contained within a defined volume with the o-rings 15, 16. Hydraulic pressure is uniformly distributed regardless of the attitude of the compression surfaces 4, 8 to one another.
  • Substantial benefits of this arrangement can include (i) integrity of the seals within and between each cell in the fuel cell stack assembly; (ii) uniform interfacial resistance over the electrode areas within the stack even when varied loads are applied to the stack assembly, such as caused by variations in manufacturing, and variations caused by normal operating parameters of the fuel cell stack; (iii) uniform interfacial resistance over the electrode area when under the effects of thermal cycling.
  • the end plate assembly can facilitate a light weight end plate design that compensates for end plate structure distortion under varied loads and supplies an evenly distributed force onto a stack assembly when thermal and other mechanical forces are cycling the overall compression load.
  • the end plate assembly may allow stack-specific compressive tuning without compromising the parallel attitude of each cell relative to its adjacent cells.
  • Figure 1 shows a master and slave end plate design in which the plates 2, 3 are facetted to include a first portion 5 and a second portion 6 which are each planar, but disposed at an oblique angle to one another.
  • each of the first portion 5 and the second portion 6 need not be planar but could be curved surfaces, e.g. each could present a convex surface in the y-direction, i.e. describing an outward going curve when travelling along the surface from the apex 7 to the peripheral edge of the plates near apertures 21.
  • the curved surfaces could be curved (e.g. convex or concave) in one direction or curved in both orthogonal directions, e.g. when travelling along the surface in both x and y directions as shown in figure 1.
  • first portion 5 and second portion 6 can be a smooth, rounded transition portion 27 as shown in figure 2.
  • the master compression surface 4 and the slave compression surface 8 can be smoothly curving profiles without planar portions in either the x direction and / or the y-direction.
  • the master plate 2 and the slave plate 3 may be pre-formed such that the master compression surface 4 and the slave compression surface 8 may be non-parallel to one another when the plates are uncompressed.
  • the reflex angle ⁇ ⁇ of the master plate 2 and the obtuse angle 0 S of the slave plate can be non-conjugate angles that add up to more than 360 degrees such that the first and second portions 5, 6 of the master compression surface diverge from the respective first and second portions 9, 10 of the slave compression surface when the plates are uncompressed.
  • the divergence can be calculated such that when a correct degree of compression of the stack is applied by the master plate 2 using tie rods 22, a bending moment in the master plate causes the compression surfaces 4, 8 or respective portions of the compression surfaces 5, 6, 9, 10 to become closer to parallel, generally parallel or exactly parallel by distortion of the master plate.
  • an end plate assembly 30 comprises a master plate 32 and a slave plate 33.
  • the master plate 32 is a planar plate and includes a planar compression surface 34.
  • the slave plate 33 is a planar plate and includes a planar compression surface 38. Between the compression surfaces 34, 38 lies an elastic or viscoplastic interface 12 bounded by an o-ring seal 15 disposed within a recess 37.
  • the containment structure is illustrated as a rebate 39 in the slave plate defining the effective edge of the slave compression surface.
  • the rebate 39 restrains movement of the o-ring 15 and thereby confines the elastic or viscoplastic material 12. It will be seen that the peripheral edges of the master plate 32 and the slave plate 33 outside the boundary of the o-ring 15 do not form parts of compression surfaces in compressive relationship with one another as they do not meet and are spaced apart sufficiently to facilitate a non-parallel attitude in respective plates when P T/GB2013/051045
  • an end plate assembly 50 comprises a master plate 52 and a slave plate 53.
  • the master plate 52 is a planar plate when fabricated and includes a planar compression surface 54 when uncompressed.
  • the slave plate 53 is a curved convex plate and includes a curved convex compression surface 58.
  • figure 5 shows a slave plate 53 having a compression surface 58 that is curved (e.g. convex) in one direction (the y-direction) and planar in the orthogonal (x) direction
  • the compression surface 58 could be curved in both x- and y-directions.
  • the precise curvature profile can be adjusted for optimal pressure distribution taking into account the fixing centres of any tie rods 22 and the characteristics of the resilient master plate and or the slave plate as well as the characteristics of the elastic or viscoplastic interface.
  • the elastic or viscoplastic interface as described herein can be particularly effective for large fuel cell stacks. Where a stack is formed from only a few cells, or even a few tens of cells, the cumulative effect of the cells on the pressure applied by the end plates during thermal cycling may be quite small or moderate. However, in larger stacks, e.g. in a 192-cell stack, the total thickness variation from thermal cycling may be as much as T/GB2013/051045
  • the hydraulic, plastic or viscoplastic interfaces can be made thick enough to accommodate a magnitude of expected flexure of the master plate and / or slave plate regardless of the size of fuel cell stack.
  • both ends of a fuel cell stack have an end plate assembly according to one of the embodiments discussed above, but it will be understood that at least some benefit would be achieved if only one end of the stack assembly used an end plate assembly as described and the other end had a conventional end plate.
  • the master plate is formed from a metal material for strength and rigidity while possibly in some embodiments allowing a moderate and / or predictable amount of elastic deformation when placing the stack into compression.
  • the slave plate is preferably formed from a rigid non-elastic, non-metal material which will retain its shape under compression and distribute compression forces evenly from interface 12 to planar surface 18.
  • the slave plate includes at least one fluid distribution structure (gallery) 19, these are preferably disposed laterally outside the positioning of tie bars 22 as exemplified in figures 1 and 2.
  • the slave plate 3 extends laterally (as shown in the y- direction) from the compression surfaces 4, 5 and laterally outside the master plate 2 defining a lateral extension portion beyond the tie bars and beyond the master plate. This is beneficial because the compression applied by the tie bars is kept as close as possible to the area of the cell edges which require the uniform pressure distribution.
  • the fluid distribution gallery 19 communicates with a fluid distribution gallery extending down the side of the stack and this has less demand for a precisely controlled uniform pressure distribution.
  • the function of the slave plate 3 could be integrated with the end-most element of the fuel cell stack.
  • the final element in a stack may be a collector plate somewhat thicker than other plates in the stack (e.g. anode plates, cathode plates or bipolar plates).
  • Such a collector plate, or other final element, in the stack could be used to form the functions of the slave plate as defined herein.
  • Figure 7 shows an arrangement in which a hydraulic fluid bladder is integrated with a slave plate 70, e.g. in which the slave plate forms one wall of the bladder 71.
  • a metal foil 72 is laser or resistance welded to the surface 74 of the slave plate 70 to form seam 73.
  • a cavity 75 is thereby formed and filled with hydraulic fluid.
  • the cavity 75 can be filled with hydraulic fluid by using a filling port (not shown) drilled in the slave plate which is sealed after filling.
  • the cavity 75 can be filled before final welding of the seam.
  • the cavity 75 may be filled through a breach in a foundation weld then the weld is completed using the mass of the larger component to sink the heat away.
  • the cavity may also be used to confine plastic or viscoplastic materials as discussed above instead of hydraulic fluid.
  • the slave plate 70 can be a final element in the stack, e.g. a current collector plate as discussed above. Other flexible materials may be used in place of a metal foil.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention concerne un ensemble empilement de cellules de pile à combustible comprenant une pluralité de cellules élémentaires disposées de manière à former un empilement, cet empilement présentant deux faces terminales parallèles opposées. Un ensemble plaque terminale est disposé au niveau de chaque face terminale opposée de l'empilement. Les ensembles plaque terminale sont accouplés pour maintenir les cellules élémentaires de l'empilement sous l'effet d'une compression. Au moins un ensemble plaque terminale et de préférence les deux ensembles plaque terminale comprennent : une plaque maîtresse présentant une face de compression maîtresse ; une plaque esclave présentant une face de compression esclave, cette face de compression esclave étant orientée vers la face de compression maîtresse et étant en relation de compression avec celle-ci ; et une interface plastique ou viscoplastique qui est disposée entre la face de compression maîtresse et la face de compression esclave. Cette interface plastique ou viscoplastique peut être retenue par une structure de confinement s'étendant le long d'un bord périphérique de l'interface.
PCT/GB2013/051045 2012-05-01 2013-04-25 Ensemble empilement de cellules de pile à combustible comprenant un ensemble plaque terminale pourvu d'un élément viscoélastique/élastique WO2013164574A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1207603.0A GB2501711A (en) 2012-05-01 2012-05-01 Fuel Cell Stack Assembly
GB1207603.0 2012-05-01

Publications (1)

Publication Number Publication Date
WO2013164574A1 true WO2013164574A1 (fr) 2013-11-07

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PCT/GB2013/051045 WO2013164574A1 (fr) 2012-05-01 2013-04-25 Ensemble empilement de cellules de pile à combustible comprenant un ensemble plaque terminale pourvu d'un élément viscoélastique/élastique

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AR (1) AR090908A1 (fr)
GB (1) GB2501711A (fr)
TW (1) TW201409819A (fr)
WO (1) WO2013164574A1 (fr)

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CN109698294A (zh) * 2017-10-24 2019-04-30 福特全球技术公司 具有压力保持垫的蓄电池阵列板总成
CN112086599A (zh) * 2019-02-26 2020-12-15 宁德时代新能源科技股份有限公司 一种电池模组

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DE102022117159A1 (de) * 2022-07-11 2024-01-11 MTU Aero Engines AG Brennstoffzellenstapel

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US6200698B1 (en) * 1999-08-11 2001-03-13 Plug Power Inc. End plate assembly having a two-phase fluid-filled bladder and method for compressing a fuel cell stack
US20020110722A1 (en) * 2001-02-15 2002-08-15 Asia Pacific Fuel Cell Technologies, Inc. Fuel cell with uniform compression device
EP1244167A1 (fr) * 2001-03-24 2002-09-25 Stefan Höller Plaques d'extremité pour une cellule électrochimque à membrane électrolytique en polymère
DE10203612C1 (de) * 2002-01-23 2003-06-26 Reinz Dichtungs Gmbh & Co Kg Brennstoffzellenpaket sowie dafür geeignete bipolare Platte
WO2007001189A1 (fr) * 2005-06-29 2007-01-04 Norsk Hydro Asa Empilement de cellules electrochimiques
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Publication number Priority date Publication date Assignee Title
EP0936689A1 (fr) * 1998-02-17 1999-08-18 Honda Giken Kogyo Kabushiki Kaisha Dispositif pour comprimer une pile d'éléments à cellules
US6200698B1 (en) * 1999-08-11 2001-03-13 Plug Power Inc. End plate assembly having a two-phase fluid-filled bladder and method for compressing a fuel cell stack
US20020110722A1 (en) * 2001-02-15 2002-08-15 Asia Pacific Fuel Cell Technologies, Inc. Fuel cell with uniform compression device
EP1244167A1 (fr) * 2001-03-24 2002-09-25 Stefan Höller Plaques d'extremité pour une cellule électrochimque à membrane électrolytique en polymère
DE10203612C1 (de) * 2002-01-23 2003-06-26 Reinz Dichtungs Gmbh & Co Kg Brennstoffzellenpaket sowie dafür geeignete bipolare Platte
WO2007001189A1 (fr) * 2005-06-29 2007-01-04 Norsk Hydro Asa Empilement de cellules electrochimiques
EP1879251A1 (fr) * 2006-07-14 2008-01-16 Topsøe Fuel Cell A/S Ensemble de compression, bloc de pile à combustible d'oxyde solide, procédé pour la compression du bloc de pile à combustible d'oxyde solide et son utilisation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109698294A (zh) * 2017-10-24 2019-04-30 福特全球技术公司 具有压力保持垫的蓄电池阵列板总成
CN112086599A (zh) * 2019-02-26 2020-12-15 宁德时代新能源科技股份有限公司 一种电池模组
CN112086599B (zh) * 2019-02-26 2023-08-01 宁德时代新能源科技股份有限公司 一种电池模组

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GB201207603D0 (en) 2012-06-13
GB2501711A (en) 2013-11-06

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