WO2006054499A1 - セパレータの接着方法、接着装置及びセパレータ接着体 - Google Patents
セパレータの接着方法、接着装置及びセパレータ接着体 Download PDFInfo
- Publication number
- WO2006054499A1 WO2006054499A1 PCT/JP2005/020792 JP2005020792W WO2006054499A1 WO 2006054499 A1 WO2006054499 A1 WO 2006054499A1 JP 2005020792 W JP2005020792 W JP 2005020792W WO 2006054499 A1 WO2006054499 A1 WO 2006054499A1
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- WIPO (PCT)
- Prior art keywords
- separator
- adhesive
- unit
- separators
- bonding
- Prior art date
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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
- H01M8/0297—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
- H01M8/02—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
- H01M8/028—Sealing means characterised by their material
-
- 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
- H01M8/0286—Processes for forming seals
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
- Y10T156/1702—For plural parts or plural areas of single part
- Y10T156/1744—Means bringing discrete articles into assembled relationship
- Y10T156/1749—All articles from single source only
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
- Y10T156/1702—For plural parts or plural areas of single part
- Y10T156/1744—Means bringing discrete articles into assembled relationship
- Y10T156/1751—At least three articles
- Y10T156/1761—Stacked serially
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
- Y10T156/1798—Surface bonding means and/or assemblymeans with work feeding or handling means with liquid adhesive or adhesive activator applying means
Definitions
- the present invention relates to a separator for a fuel cell, a bonding apparatus, and a separator bonded body.
- a fuel cell is a system that generates electricity in such a way that an electromotive force based on an electrochemical reaction between a fuel (eg, gaseous hydrogen) and an oxidant (eg, air) is taken out of the reaction mechanism. Does not produce emissions and contributes to environmental protection.
- a fuel eg, gaseous hydrogen
- an oxidant eg, air
- a battery in which the power generation mechanism of the fuel cell system is configured as a single unit is called a “single cell”, and a dual type battery in which a plurality of single cells are stacked and electrically connected is referred to as a “fuel cell stack” or simply a “stack”.
- each unit cell constituting a fuel cell stack has a substantially plate-like structure in which an electrode layer and a gas diffusion layer are arranged on the positive and negative electrode sides of a solid polymer electrolyte membrane, respectively. It is physically separated from adjacent single cells by a sheet-like positive electrode or negative electrode separator (hereinafter often referred to as “fuel cell separator” or simply “separator”) attached to the outside of the sheet.
- fuel cell separator or simply “separator
- separator set is also referred to as a "separator” or less, and a “separator unit” or “ It is called “separator adhesive” and is identified as a positive electrode or negative electrode separator.
- Utilities for single-cell power generation mechanisms include fuel, oxidant, and refrigerant (eg, cooling water), and each separator provides a flow path that supplies or circulates utility to the associated power generation mechanism (ie, A fuel flow path, an oxidant flow path, and a refrigerant flow path).
- fuel oxidant
- refrigerant eg, cooling water
- each separator provides a flow path that supplies or circulates utility to the associated power generation mechanism (ie, A fuel flow path, an oxidant flow path, and a refrigerant flow path).
- the separator of the fuel cell is molded using a mold simulating the corresponding flow path pattern, For example, it shape
- molds by the method of compressing the mixture of carbon and a thermosetting resin.
- a cutting method that cuts separator blanks (grooves, flat plates, etc.) (for example, groove cutting), which has the advantage of good dimensional accuracy and low warpage.
- the molding method is heavily used.
- the fuel cell stack requires a sealing material for sealing the utility.
- the adhesive is applied to individual separators, a plurality of separators coated with the adhesive are stacked, the adhesive is cured, and the separators are adhesively bonded. .
- Japanese Patent Application Laid-Open No. 2004-6419 discloses a fuel cell in which an adhesive is applied to a separator with a uniform thickness so that the surface pressure acting on the laminated surface of the laminated members constituting the fuel cell stack is equalized.
- a technology to reduce internal resistance and prevent fuel mixing or leakage is disclosed.
- Japanese Patent Application Laid-Open No. 2003-22827 discloses a technique for correcting the warp of the separator using negative pressure.
- the present invention has been made to solve the above problems.
- the present invention is a highly reliable fuel cell in which a separator bonding method capable of bonding a plurality of separators efficiently in a short time, manufacturing time is shortened, warps are corrected, and separators are continuously bonded.
- the second separator as the counter electrode of the first separator is provided on the surface of the first separator to which the adhesive is applied. Stack one separator unit and stack two or more separator units to cure the adhesive.
- a separator bonding method includes a base on which the separator is placed, an adhesive application unit that applies an adhesive to the separator, and a vertically and horizontally movable mechanism that fixes the separator to the base.
- a separator bonding device that includes a fixing unit and a transport unit that transports the separator to the table, the first separator is transported to the table and fixed, and then an adhesive is applied to the first separator and transported.
- the second separator and the third separator are conveyed using the part, and the base or the fixing part is moved to cure the adhesive.
- a separator bonding apparatus includes a table on which a separator is placed, an adhesive application unit that applies an adhesive to the separator, and a vertically and horizontally movable mechanism that fixes the separator to the table.
- a fixing unit and a transport unit that transports the separator to a table are provided.
- a separator bonding apparatus handles a separator unit in which a second separator serving as a counter electrode of the first separator is stacked on a surface of the first separator coated with an adhesive.
- the first separator is applied to the surface of the first separator to which the adhesive is applied.
- a separator bonded body in which a second separator serving as a counter electrode of a palator is stacked to obtain one set of separator units, and two or more sets of separator units are stacked and the adhesive is cured.
- FIG. 1 is a flowchart showing the main steps of the separator bonding method according to the first embodiment of the present invention, and Fig. 1 (b) is obtained in the step of Fig. 1 (a).
- FIG. 6 is a cross-sectional view of the separator unit obtained.
- FIG. 2 is a cross-sectional view of a separator bonding apparatus that executes the separator bonding method according to the first embodiment.
- FIG. 3 is a cross-sectional view of the bonding apparatus showing the first step of the separator bonding method according to the first embodiment.
- FIG. 4 is a cross-sectional view of the bonding apparatus showing a second step of the separator bonding method according to the first embodiment.
- FIG. 5 is a cross-sectional view of the bonding apparatus showing a third step of the separator bonding method according to the first embodiment.
- FIG. 6 is a cross-sectional view of the bonding apparatus showing a fourth step of the separator bonding method according to the first embodiment.
- FIG. 7 is a perspective view of main parts of the bonding apparatus of FIG.
- FIG. 8 is a flowchart showing a control operation of the bonding apparatus of FIG.
- FIG. 9 is a cross-sectional view of a bonding apparatus showing the main steps of the separator bonding method according to the second embodiment of the present invention.
- FIG. 10 is a cross-sectional view of a bonding apparatus showing another main process of the separator bonding method according to the second embodiment.
- FIG. 11 is a cross-sectional view of a bonding apparatus showing the main steps of a separator bonding method according to a third embodiment of the present invention.
- FIG. 12 shows another main process of the separator bonding method according to the third embodiment. It is sectional drawing of the adhesion
- FIG. 1 (a) is a flowchart showing the main steps of the separator bonding method according to the first embodiment.
- the separator bonding method according to the first embodiment is the counter electrode of the first separator 1 on the surface (the upper surface in the figure) to which the adhesive 3 of the first separator 1 is applied ( In other words, the second separator 2 having the opposite polarity is stacked to obtain one set of separator units 4, and at least two sets of separator units 4 are stacked to cure the adhesive 3.
- a first separator in this case, a negative electrode separator 1 and a second separator (positive electrode separator) 2 are prepared.
- the first separator 1 has a negative electrode (oxidant) flow channel 5 formed on the lower surface desired for the negative electrode of the corresponding single cell, and a refrigerant flow channel 6 formed on the upper surface.
- a positive electrode (fuel) flow path 7 is formed on the upper surface of the positive electrode of the corresponding single cell, and a refrigerant flow path is formed on the lower surface as required.
- the refrigerant flow path 6 on the upper surface of the first separator is flattened as a wall surface defining from the upper side.
- each separator is provided with supply or return trunks for each utility (fuel, oxidant, refrigerant) at the left and right edges, and the remaining upper and lower surfaces.
- a distribution and recovery channel network is formed which communicates with the corresponding utility (in the case of FIG. 1, the refrigerant is the upper surface of the first separator, so that the refrigerant) and the return trunk.
- the adhesive 3 is applied to the entire area of the upper surface of the first separator 1 that contacts the lower surface of the second separator 2.
- Adhesive 3 not only serves as an adhesive bonding material for separators 1 and 2, but also serves as a sealing material between utility trunks and flow networks and between them and the outside of the stack. Is also applied continuously.
- FIG. 1 (b) illustrates a region where the adhesive 3 is applied to the concave surface portion, but there may be a region applied to the convex surface portion as well as the flat surface portion.
- Adhesive 3 is applied not only to the entire upper surface of first separator 1 that contacts the lower surface of second separator 2, but also to the entire lower surface of second separator 2 that contacts the upper surface of first separator 1. Apply.
- the second separator 2 is placed on the first separator 1 in such a manner that the lower surface of the second separator 2 is accurately superimposed on the upper surface of the first separator 1 to which the adhesive 3 has been applied.
- a separator unit 4 composed of a pair of separators (in this case, a pair) is obtained.
- Unit 4 in this state should still have adhesive 3 cured.
- the first and second separators 1 and 2 formed of molding material force tend to locally shrink and deform when the adhesive 3 is cured, and have residual stress at the site. In order to suppress this, the curing of the adhesive 3 is carried out at a low temperature and therefore requires a long time. With silicone adhesive 3, curing takes several tens of hours depending on the type. For this reason, when a fuel cell stack is manufactured by stacking unit cells, the curing time of the adhesive 3 per unit cell often limits the manufacturing period of the stack.
- the adhesive unit 3 is cured by stacking a plurality of yarn units (that is, 2ffi ⁇ or more) separator units 4 and curing the adhesive unit 3 simultaneously. Manufacturing efficiency.
- the surface pressure applied to the adhesive 3 is equal to the contact area force between the upper surface of the separator 1 and the lower surface of the separator 2, and there is no local displacement of the separator when the adhesive is cured. Manage on the assumption. Therefore, the surface pressure is equal to the pressure obtained by dividing the total pressure received by the separator unit 4 (specifically, the total pressure applied to the separator 2) by the contact area between the separators 1 and 2. Since the above contact area is the production specification force, it is sufficient to know the total pressure.
- the surface pressure is determined by stacking the fuel cell stacks (that is, by stacking a plurality of single cells and the separator units 4 that have been bonded together to form a fuel cell stack).
- the surface pressure correspond to the addition that each separator 1, 2 or unit 4 receives by the final tightening of the tie rods connecting the end plates.
- the fuel cell stack uses several tens of sheets and several hundreds of separators, and even if the manufacturing dimensions of each separator satisfy a predetermined tolerance, the stack thickness of these separators is specified. It may be out of the condition. Also, if the separators 1 and 2 are bonded on the surface including the refrigerant flow path 6, the manufacturing control becomes complicated in some cases because the bonding area or bonding conditions differ depending on the unit 4, and in this respect as well, the thickness of each separator unit 4 is increased. Even though it can be managed successfully, it is difficult to successfully manage the total thickness of the separator unit 4 in the stack thickness of the fuel cell stack.
- the surface pressure when the adhesive 3 is cured is set to be equal to or higher than the surface pressure (about 0.2 MPa to 2 MPa) applied when the fuel cell stack is stacked.
- the surface pressure about 0.2 MPa to 2 MPa
- the curing temperature of the adhesive 3 (that is, the average temperature when the adhesive 3 is cured and managed as the average temperature of the separators 1 and 2 sandwiching the adhesive 3) is Set above molding temperature.
- the carbon separator contains a rosin component, which obtains fluidity at or above the separator molding temperature. Therefore, if separators 1 and 2 are manufactured thickly (plus tolerance) with carbon separators, and adhesive 3 is cured above the molding temperature, the same adhesive bonding as separators 1 and 2 will occur. Sometimes the thickness of the separator unit 4 can be adjusted, and therefore manufacturing errors of the separators 1 and 2 can be appropriately absorbed.
- FIG. 2 is a side sectional view of the bonding apparatus 8.
- This bonding apparatus 8 includes front and rear outer frames 9, 9 that form a main part of the machine frame centered on a concrete foundation (not shown), and stoppers provided on these outer frames 9, 9.
- a base 11 as a separator receiving portion movable up and down along a guide (not shown), a transport portion 17 for transporting a separator (for example, separators 15 and 16 in FIG. 2) to the base 11, and this transport portion
- the separators (for example, the separator 10 shown in FIG. 2) placed and stacked on the table 11 at 17 are held and fixed on the table 11 before and after the separators 12 and 12 are fixed to the table 11.
- an adhesive application unit 14 capable of continuously applying an adhesive to the separator, and the operation of the base 11, the conveyance unit 17, the fixing unit 12, and the adhesive application unit 14 can be performed in each manual Z automatic mode.
- An operation panel 40 is provided.
- the table 11 serving as a handling unit for handling the separator unit includes a table 11a whose front and rear edges engage with the guides of the outer frames 9 and 9, and a drive unit l ib fixed to the lower surface of the table 11a.
- the table 11a is provided with a holding part (not shown) for receiving and holding a part of the lowermost separator (or current collector plate or fixed jig) on the upper surface, and the drive part 1 lb is attached to the table 1 la together with the table 1 la. It has a Z-axis motor (not shown) that moves up and down.
- the transport unit 17 supports a holding unit 17b that horizontally accommodates and holds the separators (separators 15 and 16 in FIG. 2) that constitute a set of separator units, and supports the holding unit 17b obliquely from above. It includes a support portion 17a and a feed portion 32 having a set (not shown) of an X-axis, Y-axis, and Z-axis motor that feeds the support portion 17a in an arbitrary three-dimensional direction.
- the holding portion 17b is provided with a substantially L-shaped claw (see FIG. 7) in side view, which serves as a stopper or hook for locking and holding the lowermost separator (the separator 15 in FIG. 2) on its side surface or bottom surface. Operates according to the control signal sent through the support 17a.
- Each fixing portion 12 is attached to a specified separator, for example, an outer periphery or a side edge (front and rear edges in FIG. 2) of the top or middle separator (or current collector or fixing jig).
- a substantially C-shaped or I-shaped engaging portion 12a whose inner edge or tip engages from the side, and the outer edge or Extends downward from the base end, freely fits in the guide hole of the table 11a, faces the front and rear of the drive unit l ib, and a vertical feed mechanism (not shown) provided on the corresponding side of the outer frames 9, 9
- a locking portion 12b whose lower end is locked in combination with a mechanism (not shown).
- separator 12 can be fixed to the base 11 by inserting the front end of the engagement portion 12a into the opening or the working hole on the side surface, the engagement portion 12a can be applied when a load is applied from above the separator. The entire upper surface of the separator can be used effectively.
- the adhesive application unit 14 as an adhesive curing unit rolls on the upper surface of the separator (separator 10 in Fig. 2) fixed to the base 11, and applies a plurality of adhesives to the contact area of the upper surface.
- a moving unit 31 having a set (not shown) of an X-axis, Y-axis, and Z-axis motor that moves the dispenser 30 in an arbitrary three-dimensional direction.
- the moving part 31 moves the holding frame of the roller 13 together with the dispenser 30 to a rest position away from the separator after applying the adhesive.
- the adhesive may be applied by other methods such as a screen printing method without depending on the roller 13.
- an adhesive rolled into the shape of the roller 13 may be supplied from the nozzle 18 onto the negative electrode separator, and it may be crushed and spread by applying a load thereto. Will be shown.
- the control signal line 41 of the operation panel 40 is connected to each movable part of the device 8.
- This bonding apparatus 8 can correct the warp of each separator, and after applying the adhesive to the uppermost separator and placing the next separator in a stacked unit state, the adhesive is held as it is. While preventing the recurrence of warping, the next separator can be further stacked and an adhesive can be applied thereto. Therefore, a plurality of sets of separator units can be sequentially laminated with the adhesive applied, and the adhesive of each unit can be cured at the same time, and their respective thickness dimensions and total thickness can be efficiently obtained.
- a method for bonding a separator using the bonding apparatus 8 will be described in detail with reference to FIGS. To avoid confusion, number the separators 19-26.
- the negative electrode separator 19 of the separator unit that is currently to be bonded is placed and fixed on the table 11 by hand or by the conveying unit 17, and the nozzle 18 is placed around the roller 13.
- the adhesive is appropriately selected from, for example, a silicone type or an epoxy type according to the material of the separator 19 and the curing temperature.
- the positive separator 20 of the separator unit that is currently to be bonded and the negative separator 21 of the separator unit that is to be bonded next are overlapped and held by the transport unit 17. Then, the sheet is conveyed onto the table 11, the conveying unit 17 is lowered, the lower surface of the separator 20 is brought into contact with the roller 13, and the table 11 or the conveying unit 17 is moved back and forth or the roller 13 is rotated to separate the separator 19 Apply an adhesive to the upper surface of the separator and the lower surface of the separator 20.
- the transport unit 17 is lowered to place the overlap of the separators 20 and 21 on the separator 19. Then, the fixing portion 12 is slid inward (C direction) and engaged with the separator 21. As a result, the separators 19, 20, and 21 are set on the table 11 in an uncured state of the adhesive.
- FIG. 7 shows the positional relationship between the main parts of the base 11, the fixing part 12 and the transport part 17 of the bonding apparatus 8 of FIG.
- a positive electrode separator 10 coated with an adhesive with a roller 13 is set on a table 11 by a fixing portion 12, and a conveying portion 17 is connected to a positive electrode separator 15 and a separator 10.
- the negative electrode separator 16 is stacked and the separator 10 on the base 11 is faced from above.
- the fixing unit 12 is arranged so that it does not interfere even if the transport unit 17 approaches the fixing unit 12. Grooves are formed in the front and rear center to allow the separator to engage and release the claw of the transport unit 17! RU
- FIG. 8 is a flow chart of the control operation.
- the number S of sets of separator units to be bonded is set (step 10). This number of sets S is appropriately set according to the thickness of the separator, the size of the hardening jig, and the like.
- step 12 it is checked whether the height of the upper surface of the table 11a is at the zero point position. If it reaches the zero point height, it is reset to zero point (step 12).
- the separator transported first that is, the negative separator transported in the C-th time: Place the separator on the table 11a (if a separator has already been placed on it), place it on the top separator (step 13).
- the C-th separator is fixed by the fixing portion 12 (step 14).
- step S17 among the positive and negative separators of the separator unit to be transported in the C-th set, the separator that is transported later (that is, the C + positive separator that is transported for the first time: C) separator and the C + 1 separator (that is, the C + 1 negative separator conveyed for the first time) are transported onto the table 11 by the transport unit 17, C 1 Place the separator on the mating separator (that is, the top separator on the table 11a). If 13 is an adhesive, apply a load. Give.
- step S23 the counter separator of the C-th separator is transported onto the base 11 by the transport unit 17 and placed on the counter separator of the C-th separator, and 13 is an adhesive. A load is applied to and the process proceeds to the curing process of the adhesive.
- step S17 the fixing part 12 is slid outward to release the fixing of the mating separator of the C-1 separator (step 18), the table 11 is lowered and the table 1 la is lowered. (Step 19), slide the fixing part 12 inward to fix the C + 1 separator (Step 20), and move the transport part 17 that has finished serving as the separator transport part to the standby position (Step 21)
- the separator can be fixed by the fixing portion 12 after a load is applied to the separator, and it is possible to suitably correct the warpage of the separator and prevent the recurrence thereof, and the separator adhesive is stabilized.
- a load is applied after placing a stack of a positive electrode separator and a negative electrode separator on a negative electrode separator coated with an adhesive, adhesion with high viscosity is achieved. The agent can be crushed reliably and the adhesion of the separator can be increased.
- This embodiment is an improvement of the separator bonding apparatus shown in the first embodiment, which will be described with reference to FIGS. 9 and 10.
- FIG. The same reference numerals are used for the same parts as those shown in FIG. 13 is an adhesive.
- the separator bonding apparatus is such that the fixing portion 12 is movable in the vertical and horizontal directions without moving the platform 11 on which the separator is placed.
- the fixing unit 12 is slid outward (B direction) and pulled out from the separator, and then the fixing unit Raise 12 in the D direction. Then, again, apply a load to the separator, as shown in Fig. 10. Slide the fixing part 12 inward (C direction) to fix the separator. For this reason, as shown in FIG. 10, the position of the fixing portion 12 rises as the adhesion of the separator proceeds.
- the fixing portion is movable in the vertical and horizontal directions, even when the separator is warped, the separator can be continuously bonded while correcting the warp. .
- FIG. 13 is an adhesive.
- a separator bonding apparatus in which a jig (fixing jig) for curing an adhesive is applied to a table for fixing the separator.
- the jig (fixed jig) 28 for curing the adhesive 13 is transported to the base 11, and then the separators 19 and 20 are transported to the separator 11.
- Glue 19, 20 Separators 19, 20; 21, 22; 23, 24: 25, 26 Each process of bonding and laminating is repeated, and after the separator has reached a predetermined number, a jig that cures the adhesive (fixed jig) After laminating 29, the adhesive 13 is cured.
- a plurality of separators can be bonded efficiently in a short time, manufacturing time is shortened, and warpage is corrected to continuously bond separators.
- a highly reliable fuel cell can be obtained.
- a separator attachment method capable of efficiently bonding a plurality of separators in a short time, manufacturing time is shortened, warpage is corrected, and the separators are continuously bonded to each other.
- a separator bonding method capable of obtaining a high fuel cell, a separator bonding device capable of bonding with high dimensional accuracy with reduced warpage, and a separator adhesive body with low warpage and high dimensional accuracy.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/667,859 US8123889B2 (en) | 2004-11-17 | 2005-11-14 | Adhesion method and adhesion apparatus of separators, and separator adhesion body |
CA2587708A CA2587708C (en) | 2004-11-17 | 2005-11-14 | Adhesion method and adhesion apparatus of separators, and separator adhesion body |
EP05805866.0A EP1826847B1 (en) | 2004-11-17 | 2005-11-14 | Method for bonding separator and bonding apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004333389A JP4882221B2 (ja) | 2004-11-17 | 2004-11-17 | セパレータの接着方法 |
JP2004-333389 | 2004-11-17 |
Publications (1)
Publication Number | Publication Date |
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WO2006054499A1 true WO2006054499A1 (ja) | 2006-05-26 |
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ID=36407042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/020792 WO2006054499A1 (ja) | 2004-11-17 | 2005-11-14 | セパレータの接着方法、接着装置及びセパレータ接着体 |
Country Status (5)
Country | Link |
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US (1) | US8123889B2 (ja) |
EP (1) | EP1826847B1 (ja) |
JP (1) | JP4882221B2 (ja) |
CA (1) | CA2587708C (ja) |
WO (1) | WO2006054499A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006286518A (ja) * | 2005-04-04 | 2006-10-19 | Nissan Motor Co Ltd | セパレータ接着装置及びセパレータ接着方法 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5128789B2 (ja) * | 2006-07-21 | 2013-01-23 | 本田技研工業株式会社 | 燃料電池スタック |
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Also Published As
Publication number | Publication date |
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EP1826847B1 (en) | 2013-07-24 |
EP1826847A1 (en) | 2007-08-29 |
JP2006147247A (ja) | 2006-06-08 |
JP4882221B2 (ja) | 2012-02-22 |
US20080008923A1 (en) | 2008-01-10 |
EP1826847A4 (en) | 2010-04-14 |
US8123889B2 (en) | 2012-02-28 |
CA2587708C (en) | 2011-10-04 |
CA2587708A1 (en) | 2006-05-26 |
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