WO2023193873A1 - Ensemble cellule électrochimique à plaque évidée - Google Patents

Ensemble cellule électrochimique à plaque évidée Download PDF

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Publication number
WO2023193873A1
WO2023193873A1 PCT/EP2022/058867 EP2022058867W WO2023193873A1 WO 2023193873 A1 WO2023193873 A1 WO 2023193873A1 EP 2022058867 W EP2022058867 W EP 2022058867W WO 2023193873 A1 WO2023193873 A1 WO 2023193873A1
Authority
WO
WIPO (PCT)
Prior art keywords
end plate
assembly
gasket
repeat units
insulation plate
Prior art date
Application number
PCT/EP2022/058867
Other languages
English (en)
Inventor
Michael Schmitt
Michael TRUEBODY
Józef SMYK
Original Assignee
Ceres Intellectual Property Company Limited
Robert Bosch Gesellschaft mit beschränkter Haftung
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 Ceres Intellectual Property Company Limited, Robert Bosch Gesellschaft mit beschränkter Haftung filed Critical Ceres Intellectual Property Company Limited
Priority to PCT/EP2022/058867 priority Critical patent/WO2023193873A1/fr
Priority to TW112112916A priority patent/TW202408059A/zh
Publication of WO2023193873A1 publication Critical patent/WO2023193873A1/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
    • H01M8/24—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
    • H01M8/24—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the invention relates to electrochemical cell assemblies and to end plate assemblies for use in an electrochemical cell assembly, as well as to methods of manufacturing an electrochemical cell assembly. More specifically, the invention relates to the field of fuel cells and electrolyser cells and stacks thereof, including metal-supported solid oxide cells and stacks thereof.
  • Fuel cells and electrolyser cells are examples of electrochemical cells.
  • Fuel cells are energy conversion devices that allow for conversion of electrochemical fuel to electricity.
  • Electrolyser cells are fuels cells running in reverse mode, i.e. using electricity to generate chemicals. Reversible cells are capable of operating in both modes.
  • multiple of such cell units are stacked upon one another to form a "stack" of cell repeat units.
  • Said stack may be held in a compressed state between two end plates provided on opposite sides of the stack, thus forming an electrochemical cell assembly.
  • the end plates in addition to said compression function, typically serve as access points for supplying the cell stack with fuel and/or for electrically contacting the cell stack.
  • an insulation plate may be provided between the end plate and the stack of cell repeat units in order to electrically insulate the end plate from the cell stack.
  • Said insulation plate may comprise through-holes to form fluid pathways for supplying fluid, in particular fuel, to the cell stack.
  • said through-holes may be sealed against the stack of cell repeat units by respective gaskets, said gaskets typically being located on the surface of the insulation plate that is facing the stack of cell repeat units.
  • the electrochemical cell assembly comprises a first end plate assembly, a stack of cell repeat units, and a second end plate assembly.
  • the stack of cell repeat units comprises a plurality of cell repeat units stacked upon one another along a stacking direction and may include a current collection plate disposed at an end of the stack.
  • the stack of cell repeat units is held in a compressed state between said first end plate assembly and said second end plate assembly.
  • the end plate assembly may comprise additional compression means for tensioning said first end plate assembly and said second end plate assembly towards each other along the stacking direction.
  • Such compression means are known in the art, and may e.g. include tension rods, compression springs or bolts, clamps or other means for compression such as, for example, compression plates or compression skirt(s) extending between the respective end plate assemblies
  • the first and the second end plate assemblies are provided on opposite sides of the stack of cell repeat units.
  • the first end plate assembly and/or the second end plate assembly each comprise an areally extending end plate, an areally extending insulation plate and at least one sealing gasket.
  • the insulation plate is located between the end plate and the stack of cell repeat units.
  • the end plate and the insulation plate both areally extend in a direction perpendicular to the stacking direction and in parallel to each other. That is to say, the insulation plate may be stacked upon the end plate along the stacking direction.
  • the insulation plate comprises a first surface facing the stack of cell repeat units and an opposite second surface facing the end plate. At least one through-hole is provided in said insulation plate to form a fluid pathway along the stacking direction, preferably for supplying fuel to the stack of cell repeat units.
  • the at least one through-hole preferably extends from said first surface of the insulation plate to said second surface of the insulation plate.
  • the at least one through-hole extends along the stacking direction.
  • Said through-hole is provided with a first gasket configured to seal the through-hole against the stack of cell repeat units, said gasket being received in a corresponding recess formed in said first surface of the insulation plate that is facing the stack of cell repeat units.
  • the through-hole is provided with a second gasket configured to seal the through-hole against the end plate, said gasket being received in a corresponding recess formed in said second surface of the insulation plate that is facing the end plate.
  • the first gasket and its corresponding recess and/or the second gasket and its corresponding recess are designed and arranged such that in the assembled state of the electrochemical cell assembly (that is when the cell repeat units are held in a compressed state between said first and second end plate assemblies) an upper surface of a respective gasket is positioned flush with the surface of the insulation plate within which the corresponding recess (said gasket is received in) is formed.
  • the first gasket and its corresponding recess are configured such that an upper surface of the first gasket is positioned flush with the first surface of the insulation plate that is facing the stack of cell repeat units and/or the second gasket and its corresponding recess are configured such that an upper surface of the second gasket is positioned flush with the second surface of the insulation plate that is facing the end plate.
  • the proposed configuration allows for improved sealing of the fluid pathways without causing undue compression on the stack that may lead to damage to the cell repeat units. More specifically, as the surfaces of the at least one gasket and the insulation plate are positioned flush, there is provided levelled support for the stack of cell repeat units, thus reducing unfavourable mechanical stresses that may lead to bending or deformation of the stack of cell repeat units (e.g. to a deformation of a current collection (also known as a monopole or endpole) plate located adjacent to the insulation plate).
  • a current collection also known as a monopole or endpole
  • the stack of cell repeat units is held in a compressed state between said first and second end plate assemblies such that the stack of cell repeat units, in particular a current collection plate of said stack, bears against the surface of the insulation plate.
  • the proposed configuration further allows for easy manufacturing of the electrochemical cell assembly. More specifically, the recesses act as locating features for the gaskets and, thus, may hold the gaskets in place during assembly. In this way, the number of individual components to be assembled can be reduced.
  • both the first and the second end plate assemblies are configured as described above.
  • the cell repeat units may be fuel cell units, electrolyser cell units or reversible cell units.
  • the cell repeat units may be metal-supported electrochemical cell units.
  • the cell repeat units may be solid oxide fuel cell units or solid oxide electrolyser cell units.
  • the cell units each may comprise multiple layers, including a mechanical support layer, electrochemically active layers, and, optionally, a spacer or interconnector.
  • the electrochemically active layers may comprise a fuel electrode layer, an electrolyte layer and an air or oxidant electrode layer.
  • the electrochemically active layers may be deposited (e.g. as thin coatings or films) on and supported by the mechanical support layer, e.g. by a metal support plate, such as a metal foil.
  • the stack of cell repeat units, in addition to said cell repeat units, may comprise further components, such as electrical connectors, current collection plates (e.g. monopole or endpole plates) or sealing gaskets.
  • the cell repeat units may comprise at least one, preferably two or more, through- holes, said through-holes being in fluid communication with the active layers of the cell units allowing for fluid entering and exiting the cell units (e.g. via respective fluid channels).
  • the through-holes in the cell units may form fluidports of the cell units.
  • the stack of cell repeat units may further comprise gaskets, preferably sealing rings, configured to seal said fluid ports of the cell repeat units against adjacent cell repeat units.
  • a column of fluid ports and gaskets of the stack of cell repeat units together form a fluid pathway (or chimney) extending along the stacking direction, said fluid pathway serving as an internal manifold for distributing fluid inside the stack of cell repeat units.
  • the insulation plate Preferably, two or more through-holes (forming a fluid pathway along the stacking direction) are provided in the insulation plate, wherein at least one gasket is provided for each of said through-holes.
  • each of said through- holes in the insulation plate preferably is assigned a respective gasket.
  • the insulation plate may comprise additional through-holes (fulfilling different functions, e.g. for mounting) that are not sealed by a gasket.
  • the insulation plate may comprise two or more recesses.
  • the insulation plate may comprise four through-holes, each of which is to be sealed against the stack of cell repeat units and/or against the end plate by a respective gasket.
  • the at least one recess may be formed in the insulation plate by a material removal process, e.g. by milling.
  • the gasket is provided around the corresponding through-hole in the insulation plate.
  • the gasket may be a sealing sheet.
  • the sealing sheet may comprise at least one recess complementary to the shape, in particular to the diameter, of the at least one through-hole.
  • the gasket is a sealing ring.
  • the gasket or sealing ring preferably is arranged coaxially to the corresponding through-hole in the insulation plate. Then, also the recess in the insulation plate may be arranged coaxially to the through-hole in the insulation plate.
  • the at least one gasket may be formed from a mechanically compressible material.
  • a component "formed from” a specific material may mean that said component is mainly composed (for the most part consists of said material) of said specific material or consists of said specific material.
  • the component may be produced with said specific material being the main source material for constructing it.
  • the at least one gasket is compressed such that an upper surface of the at least one gasket is positioned flush with the surface of the insulation plate, within which surface the recess holding said gasket is formed.
  • the insulation plate may provide a “hard stop” for gasket compression, thus providing levelled support for the stack of cell repeat units in the compressed state (e.g. for a monopole of the stack).
  • the at least one gasket may be formed from an electrically insulating material, thus allowing for electrical insulation of the fluid pathways.
  • the at least one gasket may be formed from a mechanically compressible and electrically insulating material.
  • the at least one gasket is formed from Thermiculite (registered trademark of the Flexitalic group).
  • the insulation plate is formed from an electrically insulating material. More preferably, the insulation plate is formed from mica.
  • the insulation plate and the at least one gasket may be bonded to form a single piece, in particular prior to the assembly of the electrochemical cell assembly. That is to say, the insulation plate and the at least one gasket may form a sub-assembly that can be handled as a single piece (or single component). This allows for ease of manufacture since the number of individual parts is reduced.
  • the insulation plate and the at least one gasket may be bonded by gluing. For this, the at least one recess formed in the insulation plate may act as locating feature for gasket gluing.
  • the at least one through-hole in the end plate to form a fluid connection for the electrochemical cell assembly.
  • the at least one through-hole in the end plate is arranged in fluid communication with, more preferably coaxially to, the at least one through-hole in the insulation plate.
  • the end plate and the insulation plate each comprise a plurality of through-holes, wherein each through-hole in the insulation plate is assigned a corresponding through-hole in the end plate, said through- hole in the end plate and said corresponding through-hole in the insulation plate being arranged in fluid communication with, more preferably coaxially to, each other.
  • the end plate may be provided with at least one additional through- hole forming an air or oxidant port.
  • the insulation plate may be designed and arranged such that the insulation plate at least partially surrounds the at least one additional through-hole, allowing for improved sealing of the at least one additional through-hole.
  • the stack of cell repeat units further comprises a current collection plate for collecting current from cell repeat units.
  • the current collection plate preferably is located the end of the stack and is facing the insulation plate against which the at least one gasket seals.
  • the invention also relates to an end plate assembly, preferably for use in an electrochemical cell assembly as discussed above.
  • the features and advantages explained above in connection with the first and second end plate assemblies of the electrochemical cell assembly are also applicable to the end plate assembly according to claim 11.
  • the end plate assembly comprises an end plate and an insulation plate, said insulation plate and said end plate being stacked upon another along a stacking direction, said stacking direction preferably equating to the stacking direction of the cell repeat units in the electrochemical cell assembly.
  • the insulation plate comprises a first surface facing the stack of cell repeat units and an opposite second surface facing the end plate. At least one through-hole is provided in said insulation plate to form a fluid pathway along the stacking direction. Said through-hole is provided with a first gasket configured to seal the through-hole against the stack of cell repeat units (when the end plate assembly is integrated in an electrochemical cell assembly), said gasket being received in a corresponding recess formed in said first surface of the insulation plate that is facing away from the end plate. Alternatively or in addition, the through-hole is provided with a second gasket configured to seal the through-hole against the end plate, said gasket being received in a corresponding recess formed in said second surface of the insulation plate that is facing the end plate.
  • the at least one gasket and corresponding recess are configured such that the gasket extends out of the corresponding recess in an uncompressed state (that is when the end plate assembly is not integrated in an electrochemical cell assembly). That is to say, the at least one gasket preferably protrudes over the surface of the insulation in which the recess is formed.
  • the at least one gasket may have a thickness along the stacking direction exceeding the depth of the corresponding recess in the insulation plate.
  • the at least one gasket and corresponding recess may be configured such that, when the end plate assembly is not integrated in an electrochemical cell assembly yet, the at least one gasket extends out of the recess and that, when the end plate assembly is integrated in an electrochemical cell assembly, an upper surface of the at least one gasket is positioned flush with said surface of the insulation plate within which the recess is formed.
  • Such a configuration has the advantage that in the uncompressed state, the stack of cell repeat units is supported, preferably only, by the at least one gasket. Thus, when compressing the stack of cell repeat units, load is predominantly introduced into the stack of cell repeat units via the gaskets until the stack of cell repeat units bears against the insulation plate.
  • the stack of cell repeat units comprises fluidports and gaskets as described above at positions locally corresponding to the through- holes in the insulation plate.
  • the gaskets of the stack of cell repeat units may be compressed to ensure fluid-tight sealing.
  • the at least one gasket and the insulation plate then provide a levelled support for the stack of cell repeat units.
  • the invention also relates to a method of manufacturing an electrochemical cell assembly.
  • the method comprises a step of providing a first end plate assembly, a plurality of cell repeat units, and a second end plate assembly, at least one of said first and second end plate assemblies, more preferably both end plate assemblies, being constituted as described above. That is to say, the first and/or the second end plate assembly each comprise an end plate, an insulation plate, and at least one gasket as described above.
  • the method further comprises a step of positioning the cell repeat units in a stacked order along a stacking direction between the first end plate assembly and the second end plate assembly to form a stack of cell repeat units.
  • the method further comprises a step of compressing said cell repeat units along the stacking direction by tensioning said first end plate assembly and said second end plate assembly towards each other along the stacking direction until, in those end plate assembly or end plate assemblies that are constituted as described above, the upper surface of the at least one gasket is positioned flush with the surface of the insulation plate within which the corresponding recess is formed.
  • the cell repeat units are compressed along the stacking direction by tensioning said first end plate assembly and said second end plate assembly towards each other until the stack of cell repeat units, in particular a current collection plate of said stack of cell repeat units, bears against the insulation plate.
  • Fig. 1 shows a perspective view of an electrochemical cell assembly
  • Fig. 2a shows a cross-sectional view of the electrochemical cell assembly according to Fig. 1 ; and Fig. 2b shows a detail of Fig. 2a;
  • Fig. 3a shows a perspective section of the electrochemical cell assembly according to Fig. 1 ; and Fig. 3b shows a detail of Fig 3a;
  • Fig. 4 shows a perspective view of an end plate assembly of the electrochemical cell assembly according to Fig. 1 ;
  • Fig. 5 shows an exploded perspective view of the end plate assembly according to Fig. 4;
  • Fig. 6a shows a top view of the end plate assembly according to Fig. 4;
  • Fig. 6b shows a section through the end plate assembly according to Fig. 6a along the section line Vlb - Vlb drawn in Fig. 6a; and
  • Fig. 6c shows a detail of Fig. 6b.
  • FIG 1 schematically shows an outline of an exemplary embodiment of an electrochemical cell assembly 10.
  • the electrochemical cell assembly 10 comprises a first end plate assembly 12, a stack 14 of cell repeat units 18 and a second end plate assembly 16 (see also Fig. 2 and Fig. 3).
  • the stack 14 of cell repeat units is held in a compressed state between the first end plate assembly 12 and the second end plate assembly 16.
  • the electrochemical cell assembly 10 may comprise additional compression means known in the art, such as tension rods, compression springs or bolts (not shown).
  • the stack 14 of cell repeat units comprises a plurality of cell repeat units 18, said cell repeat units 18 being stacked upon each other along a stacking direction 20 (see Fig. 2a and 3b).
  • the cell repeat units 18 may be fuel cell units, electrolyser cell units or reversible cell units, comprising electrochemically active layers (not shown).
  • each cell repeat unit 18 preferably comprises two or more, in the example four, through-holes 22, said through-holes 22 being in fluid communication with the active layers of the cell unit 18, e.g. via respective fluid channels (not shown).
  • the through-holes 22 form fluid ports 24 of the respective cell repeat units 18.
  • the stack 14 of cell repeat units 18 further comprises optional sealing gaskets 26 located between the individual cell repeat units 18 and configured to seal the fluid ports 24 against adjacent cell repeat units 18 (see Fig. 2b and 3b).
  • a column of fluid ports 24 and gaskets 26 of the stack 14 of cell repeat units 18 together form a fluid pathway 28 extending throughout the stack 14 of cell repeat units 18 along the stacking direction 20.
  • Said fluid pathway 28 serves as an internal manifold 30 for distributing fuel to the individual cell repeat units 18.
  • the electrochemical cell assembly 10 comprises four of such manifolds 30 (see Fig. 1).
  • the stack 14 of cell repeat units further comprises a monopole plate 31 for current collection, said monopole plate 31 being located adjacent to the first end plate assembly 12 (described in detail below).
  • the electrochemical cell assembly 10 may optionally comprise electrical connections between the cell repeat units 18 (not shown).
  • first end plate assembly 12 and the second end plate assembly 16 are configured identically.
  • the structure of the end plate assemblies 12, 16 is described by way of example using the first end plate assembly 12.
  • Fig. 4 shows a perspective view of the first end plate assembly 12.
  • the end plate assembly 12 comprises an end plate 32 and an insulation plate 34.
  • the end plate 32 and the insulation plate 34 are stacked upon each other along the stacking direction 20.
  • the insulation plate 34 is located between the end plate 32 and the stack 14 of cell repeat units 18 (see e.g. Fig. 3a).
  • the insulation plate 34 is formed from an electrically insulating material, more preferably from mica.
  • the insulation plate 34 comprises a plurality of through-holes 36 extending along the stacking direction 20, each forming a fluid pathway 37 along the stacking direction (see Fig. 5).
  • the insulation plate 34 comprises four through-holes 36, said through-holes 36 being arranged coaxially to the fluid ports 24 of the cell repeat units 18 in the electrochemical cell assembly 10 (see e.g. Fig. 3b).
  • the end plate 32 also comprises a plurality of, in the example four, through-holes 38 extending along the stacking direction 20.
  • the through-holes 38 are arranged at positions locally corresponding to the positions of the through-holes 36 in the insulation plate 34 (see Fig. 5).
  • the through-holes 38 in the end plate 32 are arranged coaxially to the through-holes 36 in the insulation plate 34 and to the through-holes 22 in the cell repeat units 18 (see Fig. 3a and 3b).
  • the end plate assembly 12 further comprises a plurality of sealing gaskets 40 which are configured to seal the through-holes 36 in the insulation plate 34 against the stack 14 of cell repeat units 18. More specifically, each through-hole 36 in the insulation plate 34 is assigned one gasket 40 (see Fig 4 and 5). Exemplarily, the gaskets 40 are sealing rings (see Fig. 5).
  • the gaskets 40 are each received in a corresponding recess 42 formed in a surface 44 of the insulation plate 34, said surface 44 facing the stack 14 of cell repeat units 18 (see Fig. 2b and 6c).
  • the recesses 42 are arranged coaxially to the through-holes 36 formed in the insulation plate 34.
  • each gasket 40 is arranged coaxially to the through-hole 36 assigned to it (see Fig. 4).
  • the gaskets 40 and the corresponding recesses 42 are configured such that in the assembled state of the electrochemical cell assembly 10 (that is when the stack 14 of cell repeat units 18 is held in a compressed state between the first end plate assembly 12 and the second end plate assembly 16) an upper surface 46 of the gaskets 40 (said upper surface 46 facing the stack 14 of cell repeat units) is positioned flush with the surface 44 of the insulation plate 34 that is facing the stack of cell repeat units (see e.g. Fig. 2b). That is to say, the upper surfaces 46 of the gaskets 40 are positioned flush with said surface 44 of the insulation plate 34 that the recesses holding said gaskets are formed in.
  • the gaskets 40 and the corresponding recesses 42 are designed such that in the uncompressed state of the end plate assembly 10 (that is when the first end plate assembly 12 and the second end plate assembly 16 are not tensioned against each other to the final compression force yet), the gasket 40 extends out of the recess, i.e. protrudes over the surface 44 of the insulation plate 34.
  • the end plate assembly 12 comprises additional gaskets 48 configured to seal the through-holes 36 in the insulation plate 34 against the end plate 32 (see Fig. 5 and Fig. 6c).
  • said additional gaskets 48 are provided in respective recesses 50 formed in a bottom surface 52 the insulation plate 34, said bottom surface 52 facing the end plate 32.
  • the gaskets 48 and the corresponding recesses 50 provided at the bottom surface 52 of the insulation plate 34 preferably are configured identically to the gaskets 40 and recesses 42 provided on the top surface 44 of the insulation plate 34.
  • the gaskets 48 and the corresponding recesses 50 are configured such that in the assembled state of the electrochemical cell assembly 10 (that is when the stack 14 of cell repeat units 18 is held in a compressed state between the first end plate assembly 12 and the second end plate assembly 16) an upper surface 46 of the gaskets 48 (said upper surface 46 facing the end plate 32) is positioned flush with the surface 52 of the insulation plate 34 that is facing the end plate 32 (see Fig. 6c).
  • the gaskets 40, 48 are formed from an electrically insulating and mechanically compressible material.
  • the gaskets 40, 48 may be formed from Thermiculite.
  • the gaskets 44, 48 and the insulation plate 34 may be bonded (e.g. by gluing) to form a single piece.
  • the through-holes 38 in the end plates 32, the through-holes 36 (fluid pathways 37) in the insulation plates 34, the gaskets 40, 48, the fluid ports 24, and the gaskets 26 of the stack 14 of cell repeat units 18 are arranged coaxially to each other, thus together forming a chimney 54 extending along the stacking direction 20 and, preferably, throughout the entire thickness of the electrochemical cell assembly 10.
  • the electrochemical cell assembly comprises four of such chimneys 54 (see Fig. 1).

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

L'invention concerne un ensemble cellule électrochimique (10) comprenant un premier ensemble plaque d'extrémité (12), un empilement (14) d'unités de répétition de cellules (18), et un second ensemble plaque d'extrémité (16), ledit premier et/ou ledit second ensemble plaque d'extrémité comprenant chacun une plaque d'extrémité (32), une plaque d'isolation (34), au moins un trou traversant (36) étant disposé dans ladite plaque d'isolation, et au moins un joint d'étanchéité (40) étant configuré pour sceller ledit au moins un trou traversant contre ledit empilement, le ou les joints d'étanchéité étant reçus dans un évidement correspondant formé dans une surface (44) de la plaque d'isolation de telle sorte qu'une surface supérieure (46) du ou des joints d'étanchéité est positionnée à fleur de ladite surface de la plaque d'isolation. L'invention concerne également un ensemble plaque d'extrémité et un procédé de fabrication d'un ensemble cellule électrochimique.
PCT/EP2022/058867 2022-04-04 2022-04-04 Ensemble cellule électrochimique à plaque évidée WO2023193873A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2022/058867 WO2023193873A1 (fr) 2022-04-04 2022-04-04 Ensemble cellule électrochimique à plaque évidée
TW112112916A TW202408059A (zh) 2022-04-04 2023-04-06 具有凹部板之電化學電池總成

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PCT/EP2022/058867 WO2023193873A1 (fr) 2022-04-04 2022-04-04 Ensemble cellule électrochimique à plaque évidée

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101098015B (zh) * 2006-06-27 2010-05-12 中国电子科技集团公司第十八研究所 燃料电池堆进出口装置
US20200161690A1 (en) * 2017-06-26 2020-05-21 Ceres Intellectual Property Company Limited Fuel cell stack assembly
CN210668546U (zh) * 2019-11-20 2020-06-02 上海骥翀氢能科技有限公司 一种燃料电池进出口结构及燃料电池
CN212136607U (zh) * 2020-05-13 2020-12-11 上海骥翀氢能科技有限公司 燃料电池一体化隔热绝缘端板
WO2022043085A1 (fr) * 2020-08-26 2022-03-03 Ceres Intellectual Property Company Limited Connexion d'alimentation pour empilement de cellules électrochimiques

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101098015B (zh) * 2006-06-27 2010-05-12 中国电子科技集团公司第十八研究所 燃料电池堆进出口装置
US20200161690A1 (en) * 2017-06-26 2020-05-21 Ceres Intellectual Property Company Limited Fuel cell stack assembly
CN210668546U (zh) * 2019-11-20 2020-06-02 上海骥翀氢能科技有限公司 一种燃料电池进出口结构及燃料电池
CN212136607U (zh) * 2020-05-13 2020-12-11 上海骥翀氢能科技有限公司 燃料电池一体化隔热绝缘端板
WO2022043085A1 (fr) * 2020-08-26 2022-03-03 Ceres Intellectual Property Company Limited Connexion d'alimentation pour empilement de cellules électrochimiques

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