CN1894819A - Fuel cell and production of fuel cell stack - Google Patents
Fuel cell and production of fuel cell stack Download PDFInfo
- Publication number
- CN1894819A CN1894819A CNA2004800341655A CN200480034165A CN1894819A CN 1894819 A CN1894819 A CN 1894819A CN A2004800341655 A CNA2004800341655 A CN A2004800341655A CN 200480034165 A CN200480034165 A CN 200480034165A CN 1894819 A CN1894819 A CN 1894819A
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- dividing plate
- dielectric film
- manufacture method
- fuel cell
- laminate component
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Abstract
Separators(5A, 5B, 6) of and membrane-electrode assemblies(2) of a fuel cell stack(1) are alternately layered over each other in a guide box(40). The separators(5A, 5B, 6) each have groove-like gas paths(10A, 10B). Powder of an adhesive agent(7) is adhered in advance to the surfaces of the separators(5A, 5B, 6), except the gas paths(10A, 10B), through photosensitive drums(31A, 31B) to which the powder is adsorbed in a predetermined pattern. The separators(5A, 5B, 6) and the membrane-electrode assemblies(2), stacked in the guide box(40), are thermally compressed by a press(43) and a heater(40C) to obtain a unitized fuel cell stack(1).
Description
Technical field
The present invention relates to the manufacturing of fuel cell and fuel cell stack.
Background technology
The JP2001-57226A of Japan's special permission Room calendar year 2001 distribution discloses a kind of manufacture method of utilizing the fuel cell and the fuel cell stack of columnar intermediate adapter.In the method, on film electrode composite element (MEA) and dividing plate, form through hole, make columnar intermediate adapter, and alternately carry out film electrode composite element (MEA) and dividing plate stacked and obtain fuel cell through through hole.In addition, after making a plurality of fuel cells, make axle through intermediate adapter, thereby obtain the fuel cell stack that stacked a plurality of fuel cell forms.
The JP2001-236971A of Japan's special permission Room calendar year 2001 distribution discloses a kind of following method: it is laminar that MEA is formed, on the other hand, on thin slice, constitute first dividing plate and second partition with predetermined distance respectively, send these thin slices, make fuel cell simultaneously continuously.This manufacture method is sent each thin slice and is made that MEA, first dividing plate and second partition are overlapping, and applies hot compression at assigned position from the outside to these thin slices, thereby first dividing plate and second partition are crimped onto on the MEA, obtains fuel cell one by one.
The JP2003-163011A of Japan special permission Room distribution in 2003 discloses a kind of following method: send the dielectric film of film like, and in its way from drum to dielectric film transfer printing electrode material powder, thereby make MEA.
Summary of the invention
In the manufacture method of JP2001-57226A, must on MEA and dividing plate, form through hole in advance, need cost in the operation for this reason, and cut down the effective area of fuel cell owing to through hole.
The manufacture method of JP2001-236971A, JP2003-163011 is to be exclusively used in the manufacturing fuel cell, can not be applicable to the manufacturing fuel cell stack.In addition, this method is used a plurality of rollers of rotation synchronously in order to send dielectric film, and the rotating control assembly of these rollers needs cost.In addition, when utilizing roller to carry dielectric film, might damage the surface of dielectric film or on the dielectric film surface, adhere to foreign matter.
Thereby one object of the present invention is, makes fuel cell stack with low cost.
Another object of the present invention is, prevents to damage this film or dielectric film when handle thin films or laminar dielectric film, and adhere to foreign matter on this thin slice or dielectric film.
In order to reach above purpose, the invention provides the manufacture method of fuel cell stack with stacked in proper order in accordance with regulations a plurality of laminate components.Manufacture method comprises: stacked operation, and across the bonding agent that is cured by heating, order is laminated in laminate component in the guiding case in accordance with regulations between laminate component for it; Integrated operation applies hot compression to the laminate component that is laminated in the guiding case, and laminate component is integrated.
In addition, the invention provides the manufacturing installation of fuel cell stack with a plurality of laminate components that are arranged in proper order in accordance with regulations.Manufacturing installation has: the guiding case, its between laminate component across the bonding agent that is cured by heating, with laminate component in accordance with regulations sequential cascade in the guiding case in; Hot compression mechanism, it applies hot compression to the laminate component that is laminated in the guiding case.
In addition, the invention provides the manufacture method of the fuel cell of dielectric film with a pair of dividing plate clamping.Manufacture method comprises: the dividing plate arrangement step makes a pair of dividing plate vacate the face-off mutually of predetermined gap ground; Dielectric film enters operation, and the two sides of dielectric film is used delivery air and made dielectric film enter into the gap.
In addition, the invention provides manufacturing installation with the fuel cell of a pair of dividing plate clamping dielectric film.Manufacturing installation has: the dividing plate conveyer belt makes a pair of dividing plate vacate the face-off mutually of predetermined gap ground; Delivery nozzles is used delivery air and is made dielectric film enter the gap the two sides of dielectric film.
Details of the present invention and other features, advantage describe in the record after specification, and are illustrated in the accompanying drawings.
Description of drawings
Fig. 1 is the summary longitudinal section of fuel cell stack manufacturing installation of the present invention.
Fig. 2 is the summary rearview of fuel cell stack manufacturing installation.
Fig. 3 is the summary end view of fuel cell stack manufacturing installation.
Fig. 4 be the manufacturing of fuel cell stack manufacturing installation fuel cell stack want portion's longitudinal section.
Fig. 5 is the summary longitudinal section of the fuel cell stack manufacturing installation that describes of the stacked action to the end dividing plate.
Fig. 6 is the summary longitudinal section of the fuel cell stack manufacturing installation that describes of the stacked action to MEA.
Fig. 7 is the summary longitudinal section of the fuel cell stack manufacturing installation that describes of the stacked action to central dividing plate.
Fig. 8 is the summary longitudinal section of fuel cell stack manufacturing installation that hot pressing is described.
Fig. 9 is the summary longitudinal section of the fuel cell manufacturing installation in the second embodiment of the invention.
Figure 10 is the enlarged drawing of wanting portion of Fig. 9.
Embodiment
With reference to Fig. 4 of accompanying drawing, at first the fuel cell stack 1 to the fuel cell stack manufacturing installation manufacturing in the first embodiment of the invention describes.
Solid polymer type dielectric film 3 is made of perfluoroethylene sulfonate resin film.Catalytic Layer 13 as main body, is applied to the middle section of solid polymer type dielectric film 3 with platinum.
GDL4 is made of carbon cloth or the carbon paper through water-proofing treatment, is installed in the inboard of frame 4B.The localized heat that fixed effect that GDL4 causes by electrolyte solution or Thermocurable bonding agent cause is bonding, is fixed on the solid polymer type dielectric film 3, and covers Catalytic Layer 13.In the following description, the GLD4 that covers anode is called anode-side GDL, the GLD4 of covered cathode is called cathode side GLD4.
MEA2 by with dividing plate 5A, 5B or 6 alternately laminated.
The cathode gas passage 10B of the groove shape that the cathode side GDL4 of the anode gas passageway 10A of the groove shape that the anode-side GDL4 of formation and MEA2 faces on central dividing plate 6 and the MEA2 adjacent with above-mentioned anode-side GDL4 faces.Dividing plate 5A only forms anode gas passageway 10A in the end, and dividing plate 5B only forms cathode gas passage 10B in the end.By graphite powder and molding powder being mixed compression molding is carried out by the heating and pressurizing of metal die in the back or by exfoliated graphite sheet is carried out press molding, thereby form dividing plate 5A, 5B and 6.Also can constitute dividing plate 5A, 5B and 6 by metal material.By using metal material can obtain following desirable effect: can make resistance decreasing, gas penetration step-down, mechanical strength grow, and can make the thickness of slab attenuation.Yet dividing plate is exposed to oxidizing gas medium and reducing gas medium both sides, therefore needs to use corrosion resistant metal or guarantees corrosion resistance by surface treatments such as metal platings.Dividing plate 5A, 5B and 6 usefulness bonding agents 7 are fixed on the GDL4.Bonding agent 7 is a main component with the heat-curing resin of phenol system, epoxy system, by heating and pressurizing carry out dividing plate 5A, 5B and 6 and GDL4 between bonding.
In the anode gas passageway 10A of dividing plate 5A and 6, supply with hydrogen-rich gas.Air supply in the cathode gas passage 10B of dividing plate 5B and 6.Periphery in dividing plate 5A, 5B and 6 forms seal groove 15.Configuration encapsulant 14 in seal groove 15.Encapsulant 14 contacts with the frame 4B of GDL4 and prevents that gas from leaking from anode gas passageway 10A and cathode gas passage 10B.
Like this, the alternately MEA2 of stacked specified quantity and central dividing plate 6 between dividing plate 5A and 5B, thus constitute fuel cell stack 1.These duplexers are also tightened at stacked direction by screw bolt and nut by end plate.
Below the manufacturing installation of making above fuel cell stack 1 is described.
With reference to Fig. 1, the fuel cell stack manufacturing installation in the first embodiment of the invention forms unit 24 by the storehouse that is formed in the laminate component feed unit 20 in the housing 25 and is positioned at housing 25 outsides and forms.
Laminate component feed unit 20 has central dividing plate feed unit 21, end dividing plate feed unit 22 and MEA feed unit 23.
Central dividing plate feed unit 21 has the box 21A that stores central dividing plate 6.As shown in Figure 2, box 21A moves in the housing 25 from the peristome that is formed at housing 25 back sides by rail plate.On box 21A, be equipped with and be used to the handle 21B that moves into and take out of.Box 21A has the make progress supporting station 21D of the application of force by spring 21C in the bottom.Central dividing plate 6 overlapping being positioned on the supporting station 21 are connected to overlapping upper end the brake 21E that is installed on box 21A top.Central dividing plate feed unit 21 has outlet roller 21F, and this outlet roller 21F is used for sending from box 21A the central dividing plate 6 of topmost.Box 21A has peristome, and this peristome is used for sending from box 21A according to the rotation of outlet roller 21F the central dividing plate 6 of topmost.
Central dividing plate feed unit 21 has a pair of charged roller 30A and a pair of photosensitive drums 31A in the place ahead of the peristome of box 21A.
Charged roller 30A by with the corresponding corona discharge of supplying with from the outside of high-tension electricity, give positive charge to the central dividing plate 6 that passes out to outlet roller 21F.A pair of photosensitive drums 31A is the resinous drum that noncrystalline selenium or zinc oxide are arranged in surface applied, and contacts with charged roller 32A respectively.Charged roller 32A by with the corresponding corona discharge of supplying with from the outside of high-tension electricity, 31A gives negative electrical charge to photosensitive drums.
Central dividing plate feed unit 21 has a pair of laser oscillator of facing with photosensitive drums 31A 35.Laser oscillator 35 makes the enterprising line scanning of rotating shaft direction in photosensitive drums 31 of the laser that passed optical lens.When making photosensitive drums 31 rotations according to laser scanning, the electric charge on the photosensitive drums 31A surface of sweep test disappears.And,, can on the surface of photosensitive drums 31A, form electric charge disappearance portion with pattern arbitrarily by flicker control laser.
Such laser oscillator 35 and the combination of photosensitive drums 31A are known as the laser scanner unit.In the fuel cell stack manufacturing installation, except anode gas passageway 10A and cathode gas passage 10B, on the attachment position of bonding agent 7, form electric charge disappearance portion.
Central dividing plate feed unit 21 has the powder roller 33A with photosensitive drums 31A butt.Powder roller 33A has the powder container 34A that stockpiles electronegative Thermocurable binder powder, is attached to the electric charge disappearance portion of photosensitive drums 31A along with rotation makes the Thermocurable binder powder.Because surperficial electronegative beyond its of photosensitive drums 31A, so the Thermocurable binder powder of non-cohesive identical negative electrical charge.
When positively charged central dividing plate 6 contacts, electronegative Thermocurable binder powder is attached to the surface of central dividing plate 6 at the photosensitive drums 31A of electric charge disappearance part adhesion heat curable binder powder.Like this, the Thermocurable binder powder is attached to the surface of central dividing plate 6 with the pattern of regulation.As shown in Figure 3, in order to supply with the Thermocurable binder powder, form closable binder powder in the side of housing 25 and supply with mouth 38 to powder container 34A.
Central dividing plate feed unit 21 is carried by conveyer belt 36A and has been adhered to the central dividing plate 6 of Thermocurable binder powder, and from being arranged on and storehouse forms and forms unit 24 to storehouse between a pair of distributing roller 37A of peristome of the housing of facing unit 24 25 and send.
MEA feed unit 23 be positioned at central dividing plate feed unit 21 under.MEA feed unit 23 has the box 23A that stores MEA2.The formation of box 23A and box 21A are roughly the same, and it has handle 23B, spring 23C, supporting station 23D, brake 23E, outlet roller 23F.Box 23B also has humidifier 26.In humidifier 26, make the water evaporation that is supplied to from the water sucking mouth 26A at the back side that is arranged on housing shown in Figure 2 25, steam is offered the MEA2 that is positioned at box 23B topmost, make MEA2 become desirable moisture state.
MEA feed unit 23 is sent by the MEA2 behind humidifier 26 humidifications to the outside of box 23B by outlet roller 23F.MEA feed unit 23 has another to outlet roller 27 be wrapped in a conveyer belt 28 on the outlet roller 27 in the place ahead of box 23B.The MEA2 that is carried by outlet roller 27 and conveyer belt 28 is sent to storehouse formation unit 24 by from being arranged on and storehouse forms between the distributing roller 37A and 37B of peristome of the housing of facing unit 24 25.
End dividing plate feed unit 22 be positioned at MEA feed unit 23 under.The structure of end dividing plate feed unit 22 is identical with central dividing plate feed unit 21.That is, have box 22A, this box 22A has handle 22B, spring 22C, supporting station 22D, brake 22E, outlet roller 22F. End dividing plate 5A and 5B alternately are stored among the box 22A.In addition, for the pattern with regulation makes the Thermocurable binder powder be attached to the surface of end dividing plate 5A and 5B, end dividing plate feed unit 22 has a pair of charged roller 30B, a pair of photosensitive drums 31B, a pair of charged roller 32B, a pair of laser hole drilling illuminator 35B and has a pair of powder roller 33B of powder container 34B.In each a pair of machine material, end dividing plate 5B is used the machine material that is positioned at upside at these, end dividing plate 5A is used the machine material that is positioned at downside.
End dividing plate feed unit 22 has conveyer belt 36B, and this conveyer belt 36B sends end dividing plate 5A and the 5B that the Thermocurable binder powder is adhered to.
Be transferred end dividing plate 5A that band 36B carries or 5B by from being arranged on and storehouse forms between a pair of distributing roller 37B of peristome of the housing of facing unit 24 25, form unit 24 to storehouse and send.And in the following description, the central dividing plate 6 that will be sent from the peristome of housing 25, MEA2, end dividing plate 5A and 6B are generically and collectively referred to as laminate component.
Storehouse forms unit 24 to have: guiding case 40, and it carries out stacked according to the order of sending to the laminate component of sending with the regulation order from housing 25; Lifting platform 41, it carries out lifting by being arranged on guiding case 40 beneath lowering or hoisting gears 42; Press 43, it is cooperated with lifting platform 41 when the laminate component in the guiding case 40 reaches specified quantity, to laminate component effect compression stress.
Utilize polishing head 43B and heater 43C, by the last lift operations of lifting platform 41, the fuel cell stack 1 of stacked end is taken out from guiding case 40.At this moment, do not disturb, set the lifting position of polishing head 43B, and consider to set stroke distances behind the compression position of duplexer for making the fuel cell stack 1 and the polishing head 43B that have risen.
Below with reference to Fig. 5～Fig. 8, the manufacturing process of the fuel cell stack in the fuel cell stack manufacturing installation is described.In addition, before the beginning manufacturing process, store central dividing plate 6, MEA2 and end dividing plate 5A and 5B among box 21A～23A in advance, make charged roller 30A, 30B, 31A, 31B and Thermocurable binder powder positively charged in advance or electronegative.Form in the unit 24 at storehouse, in advance lifting platform 41 and polishing head 43B are remained on lifting position together.And, in the seal groove 15 of each laminate component, set up encapsulant 14 in advance.In addition, in MEA feed unit 22, MEA2 is by humidifier 26 suitable humidifications.
During with reference to Fig. 5, fuel cell stack manufacturing installation entry into service end dividing plate feed unit 22 makes outlet roller 22F action, and dividing plate 5B sends between a pair of charged roller 30B with the end, is made by charged roller 30B that end dividing plate 5B's is surperficial positively charged.On the other hand, in photosensitive drums 31B,, make the surface of Thermocurable binder powder attached to drum with the pattern of stipulating by charged roller 32B, laser hole drilling illuminator 35B and powder roller 33B.
At this, as shown in Figure 4, the bonding plane of end dividing plate 5B and MEA2 is a upper surface.Thereby, about end dividing plate 5B, 22 of end dividing plate feed units make the device action that is positioned at upside in each a pair of charged roller 30B and 32B, photosensitive drums 31B, powder roller 33B, laser hole drilling illuminator 35B, make the Thermocurable binder powder only attached to the upper surface of end dividing plate 5B.At this, make that the Thermocurable binder powder adheres to by seal groove 15 area surrounded of end dividing plate 5B upper surface, be the established part except that cathode gas passage 10B.
Like this, after making the Thermocurable binder powder be attached to the established part of upper surface, carry by conveyer belt 36B from the end dividing plate 5B that is sent between a pair of photosensitive drums 31B, and from passing out between a pair of distributing roller 37B of the peristome that is arranged at housing 25 on the lifting platform 41 in the guiding case 40 that storehouse forms unit 24.At this moment, locator protrusions 40A is connected to the top of end dividing plate 5B, carries out the location to end dividing plate 5B.
When end dividing plate 5B was placed on the lifting platform 41, lowering or hoisting gear 42 made the suitable amount of thickness of lifting platform 41 declines and end dividing plate 5B.As a result of, the upper surface of end dividing plate 5B is supported the identical height of upper surface with the lifting platform 41 of figure.
With reference to Fig. 6, then, fuel cell stack manufacturing installation running MEA feed unit 23 makes outlet roller 23F action, and the MEA2 of the topmost of box 23B is sent to the outside of box 23B.And, make 28 actions of a pair of outlet roller 27 and conveyer belt, with MEA2 from passing out between the distributing roller 37A that is arranged on housing 25 peristomes and the 37B on the end dividing plate 5B in the guiding case 40.At this moment, locator protrusions 40A is connected to the top of MEA2, carries out the location to MEA2.
When MEA2 was placed on the dividing plate 5B of end, lowering or hoisting gear 42 made the suitable amount of thickness of lifting platform 41 declines and MEA2.As a result of, the upper surface of MEA2 is supported the identical height of upper surface with the end dividing plate 5B of figure.
With reference to Fig. 7, then, fuel cell stack manufacturing installation running central dividing plate feed unit 21 makes outlet roller 21F action, the central dividing plate 6 of the topmost of box 23B is sent between a pair of charged roller 30A, made the surperficial positively charged of central dividing plate 6 by charged roller 30A.On the other hand, in photosensitive drums 31A,, make the surface of Thermocurable binder powder attached to drum with the pattern of stipulating with charged roller 32A, laser hole drilling illuminator 35A and powder roller 33A.As shown in Figure 4, the upper surface of central dividing plate 6 and lower surface both sides are bonded on the MEA2.Thereby, make the upper surface of central dividing plate 6 and lower surface both sides positively charged, make the Thermocurable binder powder attached on a pair of photosensitive drums 31A both sides.
Its result, the central dividing plate 6 that is sent from a pair of photosensitive drums 31A, by seal groove 15 area surrounded and the established part except that cathode gas passage 10B of upper surface, and, be attached with the Thermocurable binder powder respectively by seal groove 15 area surrounded and the established part except that anode gas passageway 10A of lower surface.
Like this, after making the Thermocurable binder powder be attached to the established part of upper surface and lower surface, carry by conveyer belt 36A from the central dividing plate 6 sent between a pair of photosensitive drums 31A, and from passing out between a pair of distributing roller 37A of the peristome that is arranged at housing 25 on the MEA2 in the guiding case 40 that storehouse forms unit 24.At this moment, locator protrusions 40A is connected to the top of central dividing plate 6, and central dividing plate 6 is positioned.
When central dividing plate 6 was placed on the MEA2, lowering or hoisting gear 42 made the suitable amount of thickness of lifting platform 41 declines and central dividing plate 6.As a result of, the upper surface of central dividing plate 6 be supported to figure in the identical height of upper surface of MEA2.
Then, the fuel cell stack manufacturing installation is alternately implemented the running of shown in Figure 6 and running MEA feed unit 23 and central dividing plate feed unit 21 shown in Figure 7, alternately stacked MEA2 and central dividing plate 6 in guiding case 40 through stipulated number.Lowering or hoisting gear 42 all makes descend the suitable amount of thickness with laminate component of lifting platform 41 when each stacked these laminate components.
When the stacked end of the stipulated number of MEA2 and central dividing plate 6, the fuel cell stack manufacturing installation end dividing plate feed unit 22 that turns round once more.At this constantly, the topmost at box 22A accommodates end dividing plate 5A.The fuel cell stack manufacturing installation makes outlet roller 22F action, and dividing plate 5A sends between a pair of charged roller 30B with the end, is made by charged roller 30B that end dividing plate 5A's is surperficial positively charged.
In photosensitive drums 31B, charged roller 32B, laser hole drilling illuminator 35B and powder roller 33B cooperate, and make the surface of Thermocurable binder powder attached to drum with the pattern of regulation.As shown in Figure 4, the bonding plane of end dividing plate 5A and MEA2 is a lower surface.Thereby, about end dividing plate 5B, 22 of end dividing plate feed units make the device action that is positioned at downside in each a pair of charged roller 30B and 32B, photosensitive drums 31B, powder roller 33B, laser hole drilling illuminator 35B, make the Thermocurable binder powder only attached to the lower surface of end dividing plate 5A.At this, make that the Thermocurable binder powder adheres to by seal groove 15 area surrounded of the lower surface of end dividing plate 5A, and be established part except that anode gas passageway 10A.
Like this, make the Thermocurable binder powder be attached to the established part of lower surface after, carry by end dividing plate 5A by conveyer belt 36B, and by from passing out between a pair of distributing roller 37B on the MEA2 in the guiding case 40 from sending between a pair of photosensitive drums 31B.
With reference to Fig. 8, the fuel cell stack manufacturing installation makes the laminate component that heats after the heater 40C work in the guiding case 40 when all laminate components are stacked.When laminate component reaches set point of temperature, make cylinder 43A elongation, and polishing head 43B is descended, the compression duplexer.
The result of this hot compression is solidified the Thermocurable binder powder between duplexer, and duplexer is bonded to each other, and forms by incorporate fuel cell stack 1.
Afterwards, the fuel cell stack manufacturing installation shrinks cylinder 43A, and 43B turns back to lifting position with polishing head, on the other hand, drives lowering or hoisting gear 42 lifting platform 41 is risen to the top of guiding case 40.Fuel cell stack 1 before rising on the guiding case 40 is formed unit 24 from storehouse and is removed, and in the device of other unit, is tightened at stacked direction by end plate and bolt, nut.
The fuel cell stack manufacturing installation is made fuel cell stack 1 one by one by carrying out above operation repeatedly.
In above embodiment,, also can use the thermoplasticity bonding agent to replace the Thermocurable binder powder though utilize the Thermocurable binder powder in bonding between laminate component.
In order to improve the absorption affinity of photosensitive drums 31, also can in the Thermocurable binder powder, mix the magnetic particle that is called carrier.But because the material of dividing plate 5A, 5B and 6, can magnetic particle may cause galvanic corrosion, mix the material that magnetic particle depends on dividing plate 5A, 5B and 6.
Replacement will make solid polymer type dielectric film 3 and the integrated MEA2 that forms of GLD4 be stored among the box 23A in advance, also can respectively these parts be offered guiding case 40 from different boxes, and be undertaken integrated by the hot compression that storehouse forms in the unit 24.
In dividing plate 5A, 5B and 6, only form anode gas passageway 10A and/or cathode gas passage 10B, also can utilize the dividing plate of the path that formed cooling fluid, water passage that humidification is used in addition.
According to this fuel cell stack manufacturing installation, can correctly position by guiding case 40, and make fuel cell stack 1 with low cost to laminate component.
Spy as the Japan of the applying date was willing to the 2004-150157 content with on May 20th, 2004, merged to this by reference.
The following describes the second embodiment of the present invention.
With reference to Fig. 9, the fuel cell manufacturing installation of present embodiment is by with dielectric film 105, a pair of dividing plate 120 and to have applied a pair of gas diffusion layers (GDL) 121 of Catalytic Layer integrated, thus assembling fuel cell.
The fuel cell manufacturing installation has: a pair of secondary assembly line 101A and 101B, and it carries out integrated as dividing plate/GDL assembly 102 dividing plate 120 and GDL121; Dielectric film feed unit 104, it supplies with dielectric film 104 between a pair of dividing plate/GDL assembly 102; Integrated unit 103, it carries out integrated with a pair of dividing plate/GDL assembly 102 clamping dielectric films 104.
Dividing plate/GDL the assembly 102 of the anode-side of the side's assembling fuel cell among secondary assembling circuit 101A and the 101B, the dividing plate of the cathode side of the opposing party's assembling fuel cell/GDL assembly 102.
Dividing plate conveyer belt 118 has the maintenance that is used for dividing plate 120 remains on the assigned position and constructs.Be thought of as keeping being configured with: the side in dividing plate 120 front and back forms groove, and the pawl that will be combined in this groove is arranged on the dividing plate conveyer belt 118.At this moment, enter the groove of dividing plate 120, and dividing plate 120 is slided towards central authorities from the side of dividing plate conveyer belt 118, thereby carry out supplying with dividing plate 120 to dividing plate conveyer belt 118 by the pawl that makes dividing plate conveyer belt 118.In addition, slide to the side of dividing plate conveyer belt 118, thereby unload the fuel cell of completion status from dividing plate conveyer belt 118 by making dividing plate 120.
In addition, Fig. 9 is the figure that briefly represents the structure of fuel cell manufacturing installation, is not the figure of the physical size of expression member of formation.For example the illustrated state of the radius ratio of the bend of dividing plate conveyer belt 118 is much bigger, and angle of bend also is not limited to 180 degree.
The anchor clamps 122 of sealing erecting bed 117 are caught encapsulant 123.On encapsulant 123, be coated with bonding agent in advance.Anchor clamps 122 are on the outside of GDL121 bonds to encapsulant 123 by the dividing plate 120 in 118 conveyings of dividing plate conveyer belt.
Dividing plate conveyer belt 118 utilizes secondary assembling circuit 101A and 101B, carries a pair of dividing plate/GDL assembly 102 of assembling like this with relative direction towards integrated unit 103.
On the other hand, dielectric film feed unit 104 has the scroll 107 that twines dielectric film 105, sends a pair of delivery nozzles 109A of dielectric film 105, a pair of cowling panel 109B, suction device 110 and peel off nozzle 108 to integrated unit 103 from scroll 107.Scroll 107 is driven by the servomotor rotation.
Dielectric film 105 is made of the solid polymer type dielectric film, to protect the state on surface with diaphragm 106, is rolled into scroll 107 and offers the fuel cell manufacturing installation.The following function of diaphragm 106 performance: when dielectric film 105 is rolled into the scroll shape, prevent the bad problem that contacts with each other and produce by dielectric film 105, and prevent that dielectric film 105 from carrying or humidity deterioration during keeping.
A pair of delivery nozzles 109A is to the delivery air of the two sides of the dielectric film of extracting out from scroll 107 105 ejection to integrated unit 103 guiding dielectric films 105.A pair of cowling panel 109B is to integrated unit 103 rectification delivery airs.In addition, suction device 110 is with the delivery air of dielectric film 105 attractions having passed through integrated unit 103.Thus,, improve the conveying function of dielectric film 105 with suitable tension force traction dielectric film 105, and, prevent that dielectric film 105 from producing pleat, relaxing and keep the desirable flat shape of dielectric film 105.
The humidity of the delivery air by suitable management delivery nozzles 109A ejection can be maintained desirable moisture content with dielectric film 105, and be provided to comprehensive unit 103.
Peel off nozzle 108, the ejection diaphragm is removed air-flow between dielectric film of being sent from roller 7 by the delivery air of the rotation of servomotor and delivery nozzles 109A 105 and diaphragm 106, and diaphragm 106 is peeled off from dielectric film 105.Enter easily between dielectric film 105 and the diaphragm 106 in order to make diaphragm remove air-flow, the front end of peeling off nozzle 108 is installed into the curved portion towards roller 7.Preferably diaphragm is removed air-flow and also suitably manage humidity, high-quality dielectric film 105 is supplied to integrated unit 103.
As shown in the figure, remove air-flow from the diaphragm of peeling off nozzle 108 ejection, with the transport direction of dielectric film 105 are rightabouts.Thereby diaphragm is removed air-flow and is functioned as follows: suitable tension force is offered the dielectric film of sending to integrated unit 103 105 and prevent that this dielectric film 105 is lax.
According to above structure, dielectric film feed unit 104 is slowly sent dielectric film 105 from roller 7 to integrated unit 103.In the operation of integrated unit 103, dielectric film feed unit 104 does not carry out sending of dielectric film 105.Therefore, corresponding to the operation of integrated unit 103, carry out sending of dielectric film 105 intermittently.In addition, in the operation of GDL bond pad 116 and sealing erecting bed 117 and integrated unit 103, a pair of dividing plate conveyer belt 118 does not also carry out the conveying of dividing plate 120.Therefore, make each operation of GDL bond pad 116 and sealing erecting bed 117 and integrated unit 103 carry out synchronously.
After making dielectric film 105 enter between a pair of dividing plate/GDL assembly 102 by dielectric film feed unit 104, integrated unit 103 drive pressure welding fixtures and a pair of dividing plate/GDL assembly 102 is crimped onto dielectric film 105.In addition, drive cutter and between cowling panel 109B and integrated unit 103, cut off dielectric film 105.Surface applied at GDL121 has electrolyte, and by the pressing force of crimping anchor clamps, electrolyte seamlessly is close to the composition surface of GDL121 and dielectric film 105, and dividing plate/GDL assembly 102 is integrated on the dielectric film 105.Heater preferably also is set on the crimping anchor clamps simultaneously.
In this fuel cell manufacturing installation, in pair assembling circuit 101A and 101B, make a pair of dividing plate/GDL assembly 102 synchronously, and by dividing plate conveyer belt 118 synchronous transport to integrated unit 103.Carried out synchronously by the sending of dielectric film 105 that dielectric film feed unit 104 carries out with the conveying of the dividing plate/GDL assembly 102 that is undertaken by dividing plate conveyer belt 118.Thereby, dielectric film feed unit 104 alternately carry out repeatedly 1 span amount the sending of dielectric film 105, with GDL bond pad 116 and sealing erecting bed 117 and integrated unit 103 in processing during in standby.
The dielectric film feed unit 104 of holding state stops the servomotor of driven roller 7, and by the delivery air from delivery nozzles 9A ejection, keeps dielectric film 105 with the top from the states of giving prominence to integrated unit 103 a little between the cowling panel 9B.When sending dielectric film 105, when making roller 7 rotation by servomotor, dielectric film 105 keep by delivery nozzles 9A, suction device 110 give with regulation tension force, send to integrated unit 103.1 span amount is not preferably once carried out in sending of dielectric film 105, but sends into discontinuously between dividing plate/GDL assembly 102.Be fed to the delivery air that the dielectric film 105 between dividing plate/GDL assembly 102 sprays by delivery nozzles 9A, keep the dividing plate/GDL assembly 102 and the contactless state of both sides, till anchor clamps crimping dividing plate/GDL assembly 102.
As shown in figure 10, dielectric film 105, all enter between dividing plate/GDL assembly 102 after, anchor clamps are crimped onto dividing plate/GDL assembly 102 on the dielectric film 105.
By repeating above operation, fuel cell is made singly to finish.Ready-made fuel cell is taken out of to storing the place successively.
In this embodiment, with dividing plate/GDL assembly 102 clamping dielectric films 105, even but only also can use the present invention in the housing with a pair of GDL121 clamping dielectric film 105 not comprising dividing plate 120.
As mentioned above, adopt this fuel cell manufacturing installation,, therefore, can prevent that dielectric film 105 from producing damage or adhering to foreign matter thereon by sending dielectric film 105 from the delivery air of delivery nozzles 109A ejection.In addition, the dielectric film 105 that delivery air acts on suitable tension force to send prevents that pleat, lax from appearring in dielectric film 105.Thereby, can dielectric film 105 be provided on the integrated unit 103 with desirable state.
Spy as the Japan of the applying date was willing to the 2003-391044 content with on November 20th, 2003, merged to this by reference.
As mentioned above, describe the present invention by several certain embodiments, but the present invention is not limited to the various embodiments described above.For those skilled in the art, can in the technical scope of claim, do various modifications or change to these embodiment.
The application industry field
As mentioned above, it is stacked that the present invention utilizes the guiding case that laminate component is carried out, and therefore can carry out the location of laminate component with simple structure accurately.In addition, can make fuel cell stack with low cost.Particularly, can reach effect preferably by in the manufacturing of the fuel cell stack of solid polymer type, using the present invention.
In the claim that exclusive character that embodiments of the invention comprise or characteristics are recorded in the application.
Claims (19)
1. the manufacture method of a fuel cell stack (1), this fuel cell stack (1) have the stacked a plurality of laminate components (2,5A, 5B, 6) of order in accordance with regulations, and this manufacture method comprises:
Stacked operation, its between laminate component (2,5A, 5B, 6) across the bonding agent that is cured by heating (7), with laminate component (2,5A, 5B, 6) in accordance with regulations sequential cascade in guiding case (40);
Integrated operation, it is to being laminated in laminate component (2,5A, 5B, 6) in guiding case (40) and applying hot compression and laminate component (5A, 5B, 6) is integrated.
2. manufacture method according to claim 1,
Stacked operation comprises that laminate component sandwiches operation, this laminate component sandwich operation in surface applications sandwich the not laminate component (2) of application of adhesive (7) between the laminate component (5A, 5B, 6) of bonding agent (7).
3. manufacture method according to claim 2,
The laminate component (2) of application of adhesive (7) does not comprise the film electrode composite element (2) that produces electric power generation reaction corresponding to the supply of gas, bonding agent (7) is applied to the laminate component (5A on surface, 5B, 6) comprise the gas passage (10A that is formed with film electrode composite element (2) supply gas, dividing plate (5A 10B), 5B, 6).
4. manufacture method according to claim 3,
This manufacture method also comprises the humidification operation, and this humidification operation is carried out humidification to film electrode composite element (2).
5. according to claim 3 or 4 described manufacture methods,
This manufacture method comprises that also powder adheres to operation, this powder adhere to powder that operation makes the bonding agent (7) that has the opposite polarity electricity be attached to dividing plate (5A, 5B, 6) by charged surface.
6. manufacture method according to claim 5,
Powder adheres to operation and comprises and adhere to operation, and this adheres to the photosensitive drums of operation by having adsorbed the powder of bonding agent (7) with the charged pattern of regulation, makes the powder of bonding agent (7) be attached to the surface of dividing plate (5A, 5B, 6).
7. manufacture method according to claim 3,
Dividing plate (5A, 5B, 6) have and be formed with gas passage (10A on the two sides, central dividing plate 10B) (6) and only be formed with gas passage (10A at single face, end dividing plate 10B) (5A, 5B), stacked operation comprises at first with end dividing plate (5A, 5B) be laminated in the operation in guiding case (40) and (5A 5B) is laminated in operation in the guiding case (40) with the end dividing plate at last.
8. manufacture method according to claim 1,
Stacked operation also comprises along with the thickness that is laminated in the laminate component (2,5A, 5B, 6) in the case (40) that leads increases, and makes the operation of the Support Position reduction that is laminated in the laminate component (2,5A, 5B, 6) in the guiding case (40).
9. the manufacturing installation of a fuel cell stack (1), this fuel cell stack (1) have the stacked a plurality of laminate components (2,5A, 5B, 6) of order in accordance with regulations, and the manufacturing installation of this fuel cell stack (1) has:
Guiding case (40), its between laminate component (5A, 5B, 6) across the bonding agent that is cured by heating (7), with laminate component in accordance with regulations sequential cascade in guiding case (40);
Hot compression mechanism (40C, 43), it applies hot compression to the laminate component (5A, 5B, 6) that is laminated in the guiding case (40).
10. manufacturing installation according to claim 9,
Manufacturing installation also has laminate component feed unit (20), this laminate component feed unit (20) has alternately been supplied with in surface applications the laminate component (5A of bonding agent (7) to guiding case (40), 5B, 6) and not at the laminate component (2) of surface applications bonding agent (7).
11. the manufacture method of a fuel cell, this fuel cell are with a pair of dividing plate (120) clamping dielectric film (102), this manufacture method comprises:
The dividing plate arrangement step makes a pair of dividing plate (120) vacate the face-off mutually of predetermined gap ground;
Dielectric film enters operation, and the two sides of dielectric film (105) is used delivery air and made dielectric film (105) enter into the gap.
12. manufacture method according to claim 11,
Fuel cell has gas diffusion layers (121) between dividing plate (120) and dielectric film (102), this manufacture method also is included in carries out the operation that the dividing plate arrangement step is fixed to gas diffusion layers (121) each dividing plate (120) before.
13. manufacture method according to claim 11,
This manufacture method also comprises the attraction operation, and this attraction operation attracts to enter into dielectric film (105) between a pair of dividing plate (120) with delivery air.
14. manufacture method according to claim 11,
This manufacture method also comprises the operation of rectification delivery air.
15. manufacture method according to claim 11,
Dielectric film enters operation and comprises the operation that makes dielectric film (105) enter the gap intermittently.
16. manufacture method according to claim 11,
This manufacture method also comprises the operation of in advance delivery air being adjusted to specified humidity.
17. manufacture method according to claim 11,
Dielectric film (105) is provided with the state that is covered by diaphragm (106), and this manufacture method also comprises stripping process, and this stripping process utilizes air-flow that diaphragm (106) is peeled off from dielectric film (105).
18. manufacture method according to claim 17,
Dielectric film (105) is rolled into scroll (107) and provides, and dielectric film enters operation and comprises the operation that makes scroll (107) rotation and pull out dielectric film from scroll (107).
19. the manufacturing installation of a fuel cell, this fuel cell are with a pair of dividing plate (120) clamping dielectric film (102), this manufacturing installation has:
Dividing plate conveyer belt (118), it makes a pair of dividing plate (120) vacate the face-off mutually of predetermined gap ground;
Delivery nozzles (109A), its two sides to dielectric film (105) is used delivery air and is made dielectric film (105) enter the gap.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003391044A JP4696445B2 (en) | 2003-11-20 | 2003-11-20 | Method for producing solid polymer membrane fuel cell |
| JP391044/2003 | 2003-11-20 | ||
| JP150157/2004 | 2004-05-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1894819A true CN1894819A (en) | 2007-01-10 |
| CN100474679C CN100474679C (en) | 2009-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800341655A Expired - Fee Related CN100474679C (en) | 2003-11-20 | 2004-10-28 | Fuel cell and production of fuel cell stack |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4696445B2 (en) |
| CN (1) | CN100474679C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111180770A (en) * | 2018-11-09 | 2020-05-19 | 现代自动车株式会社 | Heat treatment apparatus for membrane electrode assembly of fuel cell |
| CN112993363A (en) * | 2019-12-13 | 2021-06-18 | 中国科学院大连化学物理研究所 | Automatic production device for metal seawater fuel cell |
| CN116231015A (en) * | 2022-11-08 | 2023-06-06 | 惠州市联赢科技有限公司 | Equipment for manufacturing fuel cell and fuel cell processing method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5292746B2 (en) * | 2007-09-05 | 2013-09-18 | 日産自動車株式会社 | Membrane electrode assembly manufacturing equipment |
| KR20090111898A (en) | 2008-04-23 | 2009-10-28 | 현대자동차주식회사 | Automation system for manufacturing fuel cell stack parts |
| EP2131433A1 (en) * | 2008-06-05 | 2009-12-09 | Reinz-Dichtungs-Gmbh | Electrochemical cell and method for its manufacturing |
| JP6319163B2 (en) * | 2015-04-17 | 2018-05-09 | トヨタ自動車株式会社 | Method for producing reinforced electrolyte membrane |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001236971A (en) * | 2000-02-24 | 2001-08-31 | Fuji Electric Co Ltd | Method of producing solid high polymer fuel cell |
-
2003
- 2003-11-20 JP JP2003391044A patent/JP4696445B2/en not_active Expired - Fee Related
-
2004
- 2004-10-28 CN CNB2004800341655A patent/CN100474679C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111180770A (en) * | 2018-11-09 | 2020-05-19 | 现代自动车株式会社 | Heat treatment apparatus for membrane electrode assembly of fuel cell |
| US11870119B2 (en) | 2018-11-09 | 2024-01-09 | Hyundai Motor Company | Heat treatment apparatus of MEA for fuel cell |
| CN112993363A (en) * | 2019-12-13 | 2021-06-18 | 中国科学院大连化学物理研究所 | Automatic production device for metal seawater fuel cell |
| CN112993363B (en) * | 2019-12-13 | 2022-02-18 | 中国科学院大连化学物理研究所 | Automatic production device for metal seawater fuel cell |
| CN116231015A (en) * | 2022-11-08 | 2023-06-06 | 惠州市联赢科技有限公司 | Equipment for manufacturing fuel cell and fuel cell processing method |
| CN116231015B (en) * | 2022-11-08 | 2023-12-19 | 惠州市联赢科技有限公司 | Equipment for manufacturing fuel cell and fuel cell processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100474679C (en) | 2009-04-01 |
| JP4696445B2 (en) | 2011-06-08 |
| JP2005158293A (en) | 2005-06-16 |
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