[go: up one dir, main page]

WO2006043505A1 - Colonne de piles à combustibles et procédé de jonction de séparateurs - Google Patents

Colonne de piles à combustibles et procédé de jonction de séparateurs Download PDF

Info

Publication number
WO2006043505A1
WO2006043505A1 PCT/JP2005/019031 JP2005019031W WO2006043505A1 WO 2006043505 A1 WO2006043505 A1 WO 2006043505A1 JP 2005019031 W JP2005019031 W JP 2005019031W WO 2006043505 A1 WO2006043505 A1 WO 2006043505A1
Authority
WO
WIPO (PCT)
Prior art keywords
separator
point alloy
melting point
fuel cell
cell stack
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2005/019031
Other languages
English (en)
Japanese (ja)
Inventor
Takeharu Kuramochi
Takayuki Hirao
Shinji Ooe
Yasue Tanaka
Takeshi Yamaguchi
Masanori Iwamoto
Kazuo Nagashima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of WO2006043505A1 publication Critical patent/WO2006043505A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01M8/0206—Metals or alloys
    • 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
    • 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
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0247—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
    • H01M8/0254—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form corrugated or undulated
    • 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
    • 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
    • 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
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M2008/1095—Fuel cells with polymeric 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
    • H01M8/02—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
    • 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 and a method for joining a separator.
  • a metal thin plate is pressed to form a gas in order to further increase the electromotive force per unit volume.
  • Thin metal separators that form flow paths have been developed.
  • Warping of the separator causes an increase in contact resistance due to poor contact with the polymer electrolyte membrane, resulting in a decrease in power generation performance.
  • the gas sealing performance near each separator hold is reduced.
  • one separator has a plate spring interposed between two metal plates so that the single cell is thermally expanded.
  • the leaf spring is elastically deformed when it is tensioned or contracted, the single cell is thus, a technique for maintaining the pressure holding force with respect to the laminated body is disclosed (see Patent Document 2).
  • an outer edge cutting margin for cutting the outer edges of the negative electrode mask, the center plate, and the positive electrode mask into a predetermined shape is left, and the negative gas gas through hole and the positive electrode gas through hole are processed without being processed.
  • a technique is disclosed that facilitates the assembly process and the welding process by joining the two separators so as to leave a hold cutting allowance and welding the outer peripheral part and then cutting the outer peripheral part (Patent Document 3). reference).
  • Patent Document 1 Japanese Patent Laid-Open No. 2000-138065 (Page 5 force is also on page 8, FIGS. 2 and 3)
  • Patent Document 2 Japanese Patent Laid-Open No. 2002-367665 (Pages 2 and 3, page 5) (Fig. And Fig. 6)
  • Patent Document 3 Japanese Patent Application Laid-Open No. 2004-127699 (Pages 5-7, Figs. 1-3) Disclosure of the Invention
  • the present invention provides a fuel cell stack and a separator joining method capable of reducing contact resistance by bringing the separators into close contact with each other without any gap even when the separator is warped, and improving conductivity.
  • the task is to do.
  • a fuel cell stack includes a separator that also has a metal plate force obtained by press-forming a channel that also has an uneven shape force in an active region on both surfaces of a polymer electrolyte membrane.
  • a separator joining method is a method in which a metal plate is press-molded, and a flow path having a concavo-convex shape force in an active region and at least a seal in an outer peripheral edge portion.
  • a separator is formed by forming a groove, and a low-melting point alloy is disposed on the top of the concavo-convex convex portion that constitutes the flow path formed in one separator, and in the seal groove.
  • FIG. 1 is a perspective view showing an overall configuration of a fuel cell stack.
  • FIG. 2 is an enlarged cross-sectional view of a main part showing a part of a laminated structure of a fuel cell stack.
  • FIG. 3 is a plan view of the separator.
  • FIG. 4 is a cross-sectional view of the separator shown in FIG. 3 taken along line AA.
  • Fig. 5 is an enlarged cross-sectional view of a main part showing a state in which a low melting point alloy wire is arranged in the seal groove and a low melting point alloy sheet is arranged on the top of the groove, and the positive electrode separator and the negative electrode separator are overlapped It is.
  • FIG. 6 is an enlarged plan view of a main part of a separator in which a low melting point alloy wire is disposed in a seal groove and a low melting point alloy sheet is disposed on the top of a concave portion.
  • FIG. 7 is an enlarged cross-sectional view of a main part showing an example in which a depression is formed at the top of a concave stripe and a low melting point alloy sheet is arranged in the depression.
  • FIG. 8 is an enlarged cross-sectional view of a main part showing an example in which a paste-like low-melting-point alloy material is applied to the top of a concave strip.
  • FIG. 9 is an enlarged cross-sectional view of a main part showing an example in which a paste-like low-melting-point alloy material is applied to the top of a concave stripe portion by screen printing.
  • FIG. 10 is an enlarged cross-sectional view of a main part showing an example in which the tops of the concave strips are joined to each other and the separators are joined together.
  • Fig. 11 is an enlarged cross-sectional view of the main part of a separator in which only the joining portion corresponding to the top of the convex portion that is a concave portion is metal-bonded, and Fig. 11 (B) is a configuration example of seam welding.
  • FIG. 11 is an enlarged cross-sectional view of the main part of a separator in which only the joining portion corresponding to the top of the convex portion that is a concave portion is metal-bonded
  • Fig. 11 (B) is a configuration example of seam welding.
  • FIG. 12 is an enlarged cross-sectional view of a main part of the separator showing a state where the separator shown in FIG.
  • FIG. 13 is an enlarged cross-sectional view of a main part of the separator showing a state in which convex portions are metal-bonded by pressurization with a roller.
  • FIG. 1 is a perspective view showing the overall configuration of the fuel cell stack
  • FIG. 2 is an enlarged cross-sectional view of a main part showing a part of the laminated structure of the fuel cell stack
  • FIG. 3 is a plan view of the separator
  • FIG. FIG. 3 is a cross-sectional view taken along line AA of the separator shown in FIG.
  • the fuel cell stack 1 is a laminated body 3 in which a predetermined number of single cells 2 as unit cells that generate an electromotive force by the reaction of fuel gas and oxidant gas are laminated.
  • the current collector plate 4, the insulating plate 5 and the end plate 6 are arranged at both ends of the laminated body 3, the tie rod 7 is passed through the through-hole penetrating the inside of the laminated body 3, and a nut is screwed to the end of the tie rod 7. It is composed by combining them.
  • fuel gas H fuel gas H
  • oxidant gas O cooling water LLC
  • Fuel gas inlet 8 fuel gas outlet 9, oxidant gas inlet 10, 0, oxidant gas outlet 11, cooling water inlet 12, and cooling water outlet 13 for flowing through the formed flow channel It is formed on one end plate 6.
  • the fuel gas is introduced from the fuel gas inlet 8 and flows through the fuel gas supply channel groove formed in the separator, and is discharged from the fuel gas outlet 9.
  • the oxidant gas is introduced from the oxidant gas inlet 10, flows through the oxidant gas supply channel groove formed in the separator, and is discharged from the oxidant gas outlet 11.
  • the cooling water is introduced from the cooling water introduction port 12, flows through the cooling water supply channel groove formed in the separator, and is discharged from the cooling water discharge port 13.
  • the single-senore 2 includes a membrane electrode assembly (MEA) 14 and separators 15 disposed on both sides of the membrane electrode assembly 14, respectively. Is done.
  • the separator 15 disposed on the positive electrode side of the membrane electrode assembly 14 is referred to as a positive electrode separator PS, and the separator 15 disposed on the negative electrode side is referred to as a negative electrode separator NS.
  • the membrane electrode assembly 14 includes, for example, a solid polymer electrolyte membrane that is a polymer electrolyte membrane that allows hydrogen ions to pass through, a positive electrode that includes a positive electrode catalyst and a gas diffusion layer, and a negative electrode that includes a negative electrode catalyst and a gas diffusion layer. (Both are not shown).
  • the strong membrane electrode assembly 14 has a laminated structure in which a solid polymer electrolyte membrane is sandwiched from both sides by a positive electrode and a negative electrode.
  • the separator 15 is formed by forming a thin metal plate into a predetermined shape using a mold. As shown in FIG. 3 and FIG. 4, the powerful separator 15 is formed alternately with concave strips 16 and convex strips 17 in the active region that contributes to power generation (the central region in contact with the membrane electrode assembly 14). Forming a concavo-convex shape (a kind of corrugated shape).
  • the recess 16 disposed in contact with the positive electrode side of the membrane electrode assembly 14 forms a fuel gas flow path 18 through which the fuel gas (hydrogen H) flows through the membrane electrode assembly 14.
  • the concave strip 16 disposed in contact with the negative electrode side of the membrane electrode assembly 14 forms an oxidant gas flow path 19 through which an oxidant gas (oxygen O) flows between the concave electrode portion 16 and the membrane electrode assembly 14.
  • the space surrounded by the ridges 17 and 17 where the separators 15 and 15 are joined together forms a coolant channel 20 through which cooling water (LLC) flows.
  • the separator 15 includes the fuel gas inlet 8, the fuel gas outlet 9, the oxidant gas inlet 10, the oxidant gas outlet 11, the cooling water inlet 12, and the cooling water outlet 13.
  • Each of the communicating Mahonored 21, 22, 23, 24, 25, 26 forces is formed.
  • a separator 21 for introducing a fuel gas, a holder 22 for introducing cooling water, and a holder 23 for introducing an oxidant are sequentially formed from the upper right side to the lower side of the separator 15 shown in FIG.
  • an oxidant discharge hold 24, a coolant discharge hold 25, and a fuel gas discharge hold 26 are provided.
  • the separator 15 is formed with a stacking hole 40 through which the tie rod 7 passes.
  • the separator 15 surrounds the concave strip 16 and the convex strip 17 constituting the flow path, and also includes a fuel gas introduction mold 21, an oxidant introduction mold 23, an oxidizer.
  • Seal grooves 27 are formed so as to surround the discharge hold 24 and the fuel gas discharge hold 26, respectively.
  • the seal groove 27 is formed as a groove having a semicircular cross section, and is formed as a so-called single stroke.
  • the unit cell 2 composed of the membrane electrode assembly 14 and the separator 15 configured as described above is laminated so that the force on both sides of the membrane electrode assembly 14 is sandwiched between the positive electrode separator PS and the negative electrode separator NS,
  • the membrane electrode assembly 14 is formed by joining and integrating the upper and lower separators 15 and 15 via a seal member 28 provided in the vicinity of the outer peripheral edge of the membrane electrode assembly 14.
  • the fuel cell stack 1 is formed by stacking a plurality of unit cells 2 having the above-described configuration, and a current collector plate 4, an insulating plate 5 and end plates are formed at both ends of the stack. It is configured by placing plate 6 and fastening with tie rod 7.
  • the positive electrode separator PS and the negative electrode separator NS are metal-bonded at least between the convex portions formed in the active region (in the present embodiment, the concave strip portions 16, 16). What you do is more integrated.
  • the seal grooves 27 and 27 formed in the positive electrode separator PS and the negative electrode separator NS are metal-bonded by a low melting point metal 29 and integrated.
  • a low melting point alloy wire 30 having a round bar shape that fits in the seal groove 27 is disposed in the seal groove 27 formed in one of the positive electrode separator PS and the negative electrode separator NS.
  • the low melting point alloy sheet 31 is disposed on the top of the concave strip 16 (convex portion) of either the positive electrode separator PS or the negative electrode separator NS.
  • a solder wire can be used, and for the low melting point alloy sheet 31, for example, a solder sheet can be used.
  • the low-melting-point alloy wire 30 needs to be sealed with a fluid such as cooling water, and is therefore disposed in all the sealing grooves 27.
  • a fluid such as cooling water
  • a low melting point alloy wire 30 having a straight shape is arranged, and in the bending groove, a low melting point alloy wire 30 having a curved shape corresponding to the shape is arranged.
  • the low-melting-point alloy sheet 31 is formed as a long and narrow sheet having a low-melting-point alloy force, and is disposed on the tops of all the concave strips 16.
  • a recess 32 is formed at the top of the recess 16, and the low melting point alloy sheet 31 is placed in the recess 32. In this way, since the low melting point alloy sheet 31 is guided in the recess 32, it is possible to prevent the low melting point alloy sheet 31 from being displaced with respect to the top, and to facilitate the subsequent steps.
  • a thin sheet-shaped low melting point alloy sheet 31 is used in consideration of strike reduction and weight reduction.
  • a paste-like low melting point alloy material 33 may be applied to the convex portion of the concave strip 16 by a dispenser 34 as shown in FIG.
  • a low-melting point alloy material 33 may be applied to the top of the recess 16 by a squeegee 36 using a screen plate 35.
  • the negative electrode is formed so that the convex portions overlap each other and the low-melting-point alloy wire 30 fits snugly.
  • the upper and lower seal grooves 27 are filled with the low-melting point alloy wire 30 without a gap, and the low-melting point alloy sheet 31 is disposed between the convex portions of the concave strips 16.
  • ion nitriding treatment is a heat treatment for heating the separator and imparting conductivity to the separator.
  • a nonconductive film is formed on the surface to satisfy corrosion resistance.
  • the nonconductive film is removed by ion nitriding. It is necessary to impart conductivity.
  • the heat treatment for imparting electrical conductivity is performed with a mixed gas of N2 and H2 (normal mixing ratio is about 1: 1) in an atmosphere during nitriding, and with heat of about 600 ° C or less.
  • the nitriding treatment is further evacuated by nitriding under the condition of 02, and ammonia gas should be further mixed.
  • the melting point of the low-melting-point alloy wire 30 and the low-melting-point alloy sheet 31 needs to be lower than the heat treatment temperature of 600 ° C or less, and when an alloy such as Sn, Bi, In, Ag is used, These alloys have a melting point of about 200 ° C and are easily melted by heat during heat treatment.
  • solder containing a small amount of flux that acts as a soldering aid and removes the oxide film it is desirable to use solder containing a small amount of flux that acts as a soldering aid and removes the oxide film.
  • the positive electrode separator PS and the negative electrode separator NS are integrated with at least the protrusions formed in the active region by metal bonding. Metal bonding can be performed, and the contact resistance between the separators can be greatly reduced. Therefore, according to the present embodiment, the electromotive force per unit cell 2 can be increased, and the output of the entire fuel cell can be greatly improved.
  • seal grooves 27 formed at least on the outer peripheral edge of the positive electrode separator PS and the negative electrode separator NS are metal-bonded to each other, they are in close contact with each other without gaps and are reliably sealed. It becomes possible.
  • the protrusions or the seal grooves 27 are integrated together by metal bonding using a low melting point alloy, the contact resistance in the active region can be greatly reduced, and the active region The sealing effect is also improved.
  • the fuel cell stack 1 can be manufactured at a low cost because of the metal joining using the low melting point alloy.
  • the low melting point alloy wire 30 fitted into the seal groove 27 and the groove are heated by the nitriding treatment for removing the non-conductive film and imparting conductivity. Since the low melting point alloy sheet 31 disposed on the top of the portion 16 is melted, the heat treatment step can be made one step. Therefore, it is possible to prevent additional heat treatment for melting the low melting point alloy wire 30 and the low melting point alloy sheet 31 from being added.
  • the positive electrode separator PS and the negative electrode separator NS are disposed by placing the low melting point alloy sheet 31 on the tops of the concave strips 16 or applying a low melting point alloy material to perform heat treatment.
  • Separator PS and negative electrode separator NS were joined together by metal bonding, but as shown in Fig. 10, the metal was melted by irradiating laser between the convex portions of these concave strips 16 and 16. These may be joined together by metal joining. In this way, if the convex portions are metal-bonded by laser welding, the base materials are melted and bonded, so that a uniform electrical contact state can be ensured.
  • the convex portions of the concave strips 16 and 16 may be spot-welded and integrated between them by metal bonding.
  • the positive electrode separator PS and the negative electrode separator NS are both flat plates, and only the bonding portion S corresponding to the top of the convex portion to be the concave strip portion 16 is metal-bonded.
  • Examples of the technique for metal joining the joining portion S include laser welding, spot welding, and seam welding.
  • disc-shaped rotating electrodes 41 and 41 are arranged on both sides of the stacked positive electrode separator PS and negative electrode separator NS, and these rotating electrodes are arranged. While rotating 41 and 41, the positive electrode separator PS and the negative electrode separator NS are fed at a predetermined speed, and the rotary electrode 41 and 41 are energized intermittently, thereby joining the joint portion S. If such seam welding is used, the joining portion S can be joined continuously, so that productivity can be greatly improved.
  • the joined body of the positive electrode separator PS and the negative electrode separator NS which are metal-bonded only at necessary positions, is placed in the cavity of the hydraulic mold composed of the upper die 37 and the lower die 38 shown in FIG. To do.
  • a liquid is introduced into the cavity with a predetermined pressure.
  • the positive electrode separator PS and the negative electrode separator NS are opened away from each other except for the joint portion S by the liquid introduced into the cavity.
  • the convex portions of the concave strips 16 and 16 of the positive electrode separator PS and the negative electrode separator NS are pressurized and energized while rotating a pair of rolls 39 and 39 that also have steel strength. These are joined together by metal bonding.
  • the shape of the separator 15 used in the above description of the embodiment is merely an example, and is not limited to the present embodiment.
  • separators which are also metal plate plates formed by pressing a flow path having an uneven shape in the active region.
  • the protrusions formed in the active region are integrated by metal bonding. I am letting.
  • the positive electrode separator disposed on the positive electrode side of the polymer electrolyte membrane and the negative electrode separator disposed on the negative electrode side are integrated with at least the protrusions formed in the active region by metal bonding.
  • the protrusions are metal-bonded without any gaps, and the contact resistance between the separators can be greatly reduced. Therefore, according to the present invention, the electromotive force per unit cell can be increased, and the output of the entire fuel cell can be greatly improved.

Landscapes

  • 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

Pour mettre des séparateurs en contact étroit les uns avec les autres sans jeu afin de réduire la résistance de contact et augmenter la conductivité même en cas de gauchissement des séparateurs, une pluralité de piles simples, dans chacune desquelles un séparateur anodique (PS) et un séparateur cathodique (NS) composés de plaques métalliques formées par conformage à la presse de circuits d’écoulement dans des formes irrégulières sont disposés respectivement sur les côtés opposés d’un film polyélectrolytique, sont stratifiées dans une zone active, et le séparateur anodique (PS) et le séparateur cathodique (NS) sont intégrés ensemble par jonction métallique par fusion d’une feuille alliée à bas point de fusion (31) disposée au sommet d’un sillon rétreint (16) formé dans la zone active et d’un fil allié à bas point de fusion (30) placé dans une rainure d’étanchéité (27).
PCT/JP2005/019031 2004-10-18 2005-10-17 Colonne de piles à combustibles et procédé de jonction de séparateurs Ceased WO2006043505A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004303175A JP2006114444A (ja) 2004-10-18 2004-10-18 燃料電池スタック及びセパレータの接合方法
JP2004-303175 2004-10-18

Publications (1)

Publication Number Publication Date
WO2006043505A1 true WO2006043505A1 (fr) 2006-04-27

Family

ID=36202921

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/019031 Ceased WO2006043505A1 (fr) 2004-10-18 2005-10-17 Colonne de piles à combustibles et procédé de jonction de séparateurs

Country Status (2)

Country Link
JP (1) JP2006114444A (fr)
WO (1) WO2006043505A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007200700A (ja) * 2006-01-26 2007-08-09 Honda Motor Co Ltd 燃料電池及びその製造方法
JP2007311069A (ja) * 2006-05-16 2007-11-29 Nissan Motor Co Ltd 燃料電池スタックおよび燃料電池セパレータ並びにその製造方法
EP2063480A1 (fr) * 2007-11-26 2009-05-27 Daido Tokushuko Kabushiki Kaisha Plaque métallique bipolaire pour piles à combustible et son procédé de fabrication
CN109935842A (zh) * 2019-04-01 2019-06-25 中自环保科技股份有限公司 一种燃料电池电堆的金属双极板和组装方法
CN112620936A (zh) * 2019-09-24 2021-04-09 丰田自动车株式会社 燃料电池的制造方法
WO2023222311A3 (fr) * 2022-05-18 2024-02-29 Robert Bosch Gmbh Procédé de fabrication d'une plaque bipolaire

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4830378B2 (ja) * 2005-07-13 2011-12-07 トヨタ自動車株式会社 燃料電池及び燃料電池製造方法
JP5076360B2 (ja) * 2006-05-16 2012-11-21 日産自動車株式会社 燃料電池スタック並びにその製造方法
JP5050434B2 (ja) * 2006-07-27 2012-10-17 トヨタ自動車株式会社 燃料電池
KR100901568B1 (ko) 2006-12-12 2009-06-08 현대자동차주식회사 연료전지용 금속분리판의 제조방법
JP5223272B2 (ja) * 2007-09-04 2013-06-26 日産自動車株式会社 燃料電池用金属セパレータの溶接方法、および燃料電池用金属セパレータの溶接装置
TWI369806B (en) * 2009-03-05 2012-08-01 Ind Tech Res Inst A fuel-cell stack with metal separators
CN102113159B (zh) 2009-04-22 2015-06-03 松下电器产业株式会社 燃料电池堆以及具备其的燃料电池热电联供系统
JP5578200B2 (ja) * 2012-07-04 2014-08-27 日産自動車株式会社 燃料電池スタック並びにその製造方法
EP3361538B1 (fr) * 2015-10-06 2021-04-07 Nissan Motor Co., Ltd. Empilement de piles à combustible
CN113611888B (zh) * 2018-12-29 2022-11-25 戈瑞屋(上海)科技发展有限公司 一种燃料电池
JP7598221B2 (ja) * 2020-10-21 2024-12-11 日産自動車株式会社 燃料電池
JP7613315B2 (ja) * 2021-08-10 2025-01-15 トヨタ紡織株式会社 燃料電池用のセパレータ及び燃料電池の単セル

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02227964A (ja) * 1989-01-18 1990-09-11 Asea Brown Boveri Ag 燃料電池
JP2000173631A (ja) * 1998-12-08 2000-06-23 General Motors Corp <Gm> 陽子交換膜燃料電池のための接着プレ―ト
JP2000323149A (ja) * 1999-05-07 2000-11-24 Mitsubishi Heavy Ind Ltd 燃料電池用セパレータ及び製造装置
JP2000353531A (ja) * 1999-06-08 2000-12-19 Sumitomo Electric Ind Ltd 固体高分子型燃料電池用セパレータおよびその製造方法
JP2002305005A (ja) * 2001-04-03 2002-10-18 Araco Corp ガスセパレータおよびその製造方法
JP2002373673A (ja) * 2001-06-15 2002-12-26 Toyo Kohan Co Ltd 燃料電池用セパレータ、その製造方法、およびその燃料電池用セパレータを用いた燃料電池
JP2004139829A (ja) * 2002-10-17 2004-05-13 Honda Motor Co Ltd 拡散層セパレータ接合体とその製造方法、および燃料電池、燃料電池スタック
JP2005093095A (ja) * 2003-09-12 2005-04-07 Toyota Motor Corp 燃料電池

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02227964A (ja) * 1989-01-18 1990-09-11 Asea Brown Boveri Ag 燃料電池
JP2000173631A (ja) * 1998-12-08 2000-06-23 General Motors Corp <Gm> 陽子交換膜燃料電池のための接着プレ―ト
JP2000323149A (ja) * 1999-05-07 2000-11-24 Mitsubishi Heavy Ind Ltd 燃料電池用セパレータ及び製造装置
JP2000353531A (ja) * 1999-06-08 2000-12-19 Sumitomo Electric Ind Ltd 固体高分子型燃料電池用セパレータおよびその製造方法
JP2002305005A (ja) * 2001-04-03 2002-10-18 Araco Corp ガスセパレータおよびその製造方法
JP2002373673A (ja) * 2001-06-15 2002-12-26 Toyo Kohan Co Ltd 燃料電池用セパレータ、その製造方法、およびその燃料電池用セパレータを用いた燃料電池
JP2004139829A (ja) * 2002-10-17 2004-05-13 Honda Motor Co Ltd 拡散層セパレータ接合体とその製造方法、および燃料電池、燃料電池スタック
JP2005093095A (ja) * 2003-09-12 2005-04-07 Toyota Motor Corp 燃料電池

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007200700A (ja) * 2006-01-26 2007-08-09 Honda Motor Co Ltd 燃料電池及びその製造方法
JP2007311069A (ja) * 2006-05-16 2007-11-29 Nissan Motor Co Ltd 燃料電池スタックおよび燃料電池セパレータ並びにその製造方法
EP2063480A1 (fr) * 2007-11-26 2009-05-27 Daido Tokushuko Kabushiki Kaisha Plaque métallique bipolaire pour piles à combustible et son procédé de fabrication
CN109935842A (zh) * 2019-04-01 2019-06-25 中自环保科技股份有限公司 一种燃料电池电堆的金属双极板和组装方法
CN112620936A (zh) * 2019-09-24 2021-04-09 丰田自动车株式会社 燃料电池的制造方法
WO2023222311A3 (fr) * 2022-05-18 2024-02-29 Robert Bosch Gmbh Procédé de fabrication d'une plaque bipolaire

Also Published As

Publication number Publication date
JP2006114444A (ja) 2006-04-27

Similar Documents

Publication Publication Date Title
WO2006043505A1 (fr) Colonne de piles à combustibles et procédé de jonction de séparateurs
JP5438918B2 (ja) 燃料電池用電解質・電極構造体及び燃料電池
EP2025034B1 (fr) Empilement de pile à combustible et procédé de fabrication associé
EP1504489B1 (fr) Pile a combustible et procede de connexion d&#39;un separateur et d&#39;une couche electrolytique d&#39;une pile a combustible
JP4899339B2 (ja) 燃料電池のセパレータ
US20140017590A1 (en) Electrolyte membrane-electrode assembly for fuel cells, and method for producing same
CN110877154B (zh) 接合隔板的制造方法以及制造装置
JP2018097917A (ja) 樹脂枠付き電解質膜・電極構造体及びその製造方法
EP2991148B1 (fr) Structure isolante, pile à combustible et empilement de piles à combustible
JP5226431B2 (ja) 燃料電池スタック
EP2525429B1 (fr) Pile à combustible
JP2006228533A (ja) 燃料電池用セパレータの成形方法及びセパレータ形状矯正装置
JP6493549B2 (ja) 燃料電池スタック
CN105633428A (zh) 燃料电池用带树脂框的电解质膜-电极结构体
JP7010077B2 (ja) 燃料電池のセパレータ接合体及び燃料電池のセパレータ接合体の製造方法
JP5343532B2 (ja) 燃料電池及び燃料電池スタック製造方法
JP2006228580A (ja) 燃料電池スタック
JP2017079170A (ja) 燃料電池用樹脂枠付き電解質膜・電極構造体及びその製造方法
JP6158758B2 (ja) 燃料電池用樹脂枠付き電解質膜・電極構造体
JP6103376B2 (ja) 燃料電池スタック及びその製造方法
JP4268400B2 (ja) 燃料電池
JP4935611B2 (ja) 燃料電池及びセパレータの製造方法
JP2004335179A (ja) 燃料電池
JP4639722B2 (ja) 燃料電池の製造方法および燃料電池
JP5362541B2 (ja) 固体高分子型燃料電池

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KM KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 05793465

Country of ref document: EP

Kind code of ref document: A1