CN101276920B - A manufacturing method of membrane electrode assembly, membrane electrode assembly and manufacturing device thereof - Google Patents
A manufacturing method of membrane electrode assembly, membrane electrode assembly and manufacturing device thereof Download PDFInfo
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- CN101276920B CN101276920B CN2008100855790A CN200810085579A CN101276920B CN 101276920 B CN101276920 B CN 101276920B CN 2008100855790 A CN2008100855790 A CN 2008100855790A CN 200810085579 A CN200810085579 A CN 200810085579A CN 101276920 B CN101276920 B CN 101276920B
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- electrode assembly
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- 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
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
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- 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
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- 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
- H01M8/0284—Organic resins; Organic polymers
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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
Disclosed herein is a membrane electrode assembly with a superior power generating efficiency and a method of manufacturing the same. Also disclosed is a manufacturing apparatus thereof wherein a gasket with an optimum thickness can be easily applied to the membrane electrode assembly without preparing various types of gaskets. A method of manufacturing the membrane electrode assembly with catalytic layers and gas diffusion layers on surfaces of the electrolyte membrane comprises controlling a molding thickness according to thicknesses of the catalytic layers and the gas diffusion layers and integrally molding the gasket portions formed with resin materials on at least one surface of the electrolyte membrane.
Description
Technical field
The present invention relates to a kind of manufacture method that constitutes the membrane-electrode assembly of fuel cell, membrane-electrode assembly with and manufacturing installation.
Background technology
Usually, fuel cell is by membrane-electrode assembly is laminated across dividing plate, and this membrane-electrode assembly is provided with catalyst layer and gas diffusion layers on the dielectric film two sides respectively.The peripheral part of this membrane-electrode assembly is not provided with catalyst layer and gas diffusion layers and exposes dielectric film, at this, is used for the resin system liner (for example, with reference to patent documentation 1) that will seal between the dividing plate.Determine the optimum thickness of this liner according to the relation of this liner and gaseous diffusion layer thickness.Therefore, under the skimble-scamble situation of gas diffusion layers size,, need to prepare the various gasket of different-thickness in order to change the thickness of liner.But, prepare this liner of numerous species, be limited on its kind, therefore also not necessarily can both use the liner of optimum thickness sometimes.For example in liner thickness hour, gas diffusion layers is excessively flattened, gaseous diffusion performance and drainage performance variation, and when liner thickness was big, the resistance of gas diffusion layers increased, and no matter in which kind of occasion, generating efficiency all reduces.
Patent documentation 1: the international brochure that discloses No. 01/017048
Summary of the invention
The present invention produces for the problem that solves above-mentioned conventional art existence, its purpose is to provide a kind of various gasket of can not need preparing, the manufacture method, membrane-electrode assembly that just can use the membrane-electrode assembly of the liner of optimum thickness and excellent in power generation efficiency easily with and manufacturing installation.
The manufacture method of the membrane-electrode assembly of the present invention that achieves the above object, this membrane-electrode assembly is provided with catalyst layer and gas diffusion layers on the dielectric film two sides respectively, thickness according to above-mentioned catalyst layer and gas diffusion layers is controlled forming thickness in the one side at least of above-mentioned dielectric film and the periphery of above-mentioned catalyst layer and gas diffusion layers, thereby integrally formed resin system cushion part, the thickness of this resin system cushion part form to such an extent that be lower than the surface of gas diffusion layers.
The membrane-electrode assembly of the present invention that achieves the above object, be provided with catalyst layer and gas diffusion layers on the dielectric film two sides respectively, according to the thickness of above-mentioned catalyst layer and the gas diffusion layers resin system cushion part at the integrally formed differing formed thickness of periphery of the one side at least of above-mentioned dielectric film and above-mentioned catalyst layer and gas diffusion layers, the thickness of this resin system cushion part forms to such an extent that be lower than the surface of gas diffusion layers.
The manufacturing installation of the membrane-electrode assembly of the present invention that achieves the above object, this membrane-electrode assembly is provided with catalyst layer and gas diffusion layers on the dielectric film two sides respectively, it is characterized in that, this manufacturing installation comprises: shaping dies, this shaping dies is formed with controls the above-mentioned catalyst layer of above-mentioned dielectric film and the handle part of gas diffusion layers periphery from the two sides, and is provided with the cast gate that is used for resin material injection; Measurement section, this measurement section is used to measure the thickness of above-mentioned gas diffusion layer; Moveable block, this moveable block can move with respect to the dielectric film advance and retreat along above-mentioned handle part medial surface, forms the opposite face relative with above-mentioned dielectric film, and a side opposite with handle part of this opposite face is relative with the gas diffusion layers peripheral end; Control part, the advance and retreat of controlling above-mentioned moveable block according to the catalyst layer of being measured by above-mentioned measurement section and gaseous diffusion layer thickness move.
Manufacture method for the membrane-electrode assembly of the present invention that constitutes as mentioned above, because the thickness according to catalyst layer and gas diffusion layers is controlled forming thickness to the edge part of dielectric film, thereby integrally formed resinous cushion part, therefore, do not need to prepare in advance the various gasket of different-thickness, just can form the cushion part of optimum thickness.Therefore, when using the membrane-electrode assembly that produces to constitute fuel cell, gas diffusion layers is flattened to optimum thickness, keep gaseous diffusion performance, drainage performance and resistance well, thereby improve the generating efficiency of fuel cell.
For the membrane-electrode assembly of the present invention that constitutes as mentioned above, thickness according to catalyst layer and gas diffusion layers is controlled forming thickness to the edge part of dielectric film, thereby integrally formed resinous cushion part, therefore, do not need to prepare in advance the various gasket of different-thickness, can realize the cushion part of optimum thickness.Therefore, when using this membrane-electrode assembly to constitute fuel cell, gas diffusion layers is flattened to optimum thickness, keep gaseous diffusion performance, drainage performance and resistance well, thereby improve the generating efficiency of fuel cell.
For the manufacturing installation of the membrane-electrode assembly of the present invention that constitutes as mentioned above, owing to possess, therefore, change the position of moveable block by control part with respect to the dielectric film mobile moveable block of can advancing and retreat, thus the cushion part of the optimum thickness that can be shaped.Therefore, when using the membrane-electrode assembly that produces by this manufacturing installation to constitute fuel cell, gas diffusion layers is flattened to optimum thickness, keep gaseous diffusion performance, drainage performance and resistance well, thereby improve the generating efficiency of fuel cell.
Description of drawings
Fig. 1 is the vertical view of membrane-electrode assembly of the present invention.
Fig. 2 is the partial sectional view along the II-II line of Fig. 1.
Fig. 3 is the partial sectional view of fuel cell.
Fig. 4 is the vertical view of the preceding preparation conjugant of expression cushion part shaping.
Fig. 5 is the partial sectional view along the V-V line of Fig. 4.
Fig. 6 is the end view of the manufacturing installation of expression membrane-electrode assembly of the present invention.
Fig. 7 is the vertical view along the 1st shaping dies of VII-VII line of Fig. 6.
Fig. 8 is the vertical view along the 2nd shaping dies of VIII-VIII line of Fig. 6.
Fig. 9 is the partial sectional view along the VI-VI line of Fig. 6.
Figure 10 be illustrated in present embodiment manufacturing installation the partial sectional view during last mounting preparation conjugant.
Figure 11 is the partial sectional view during with the shaping dies matched moulds of this manufacturing installation for expression.
Figure 12 is the partial sectional view of expression when the shaping dies of this manufacturing installation has been injected resin material.
Figure 13 is the partial sectional view of the manufacturing installation of the membrane-electrode assembly of expression the 2nd execution mode.
Figure 14 is the partial sectional view when being illustrated in mounting part packing material and preparation conjugant on the manufacturing installation of the 2nd execution mode.
Figure 15 is the i.e. partial sectional view during the shaping dies matched moulds of this manufacturing installation just of expression.
Figure 16 is the partial sectional view when having carried out compression molding behind the shaping dies matched moulds of expression with this manufacturing installation.
Figure 17 is the partial sectional view of the manufacturing installation of the membrane-electrode assembly of expression the 3rd execution mode.
Figure 18 is the partial sectional view when being illustrated in mounting part packing material and preparation conjugant on the manufacturing installation of the 3rd execution mode.
Figure 19 is the partial sectional view during with the shaping dies matched moulds of this manufacturing installation for expression.
After Figure 20 is the shaping dies matched moulds of expression with this manufacturing installation, the partial sectional view when having finished compression molding and injection moulding.
Embodiment
Below, with reference to accompanying drawing, explanation embodiments of the present invention.
Fig. 1 is the vertical view of membrane-electrode assembly of the present invention, and Fig. 2 is the partial sectional view along the II-II line of Fig. 1, and Fig. 3 is the partial sectional view of fuel cell.
As shown in Figure 1 and Figure 2, the membrane-electrode assembly 1 of present embodiment has by fuel electrodes 3 and air pole 4 and clamps the such lit-par-lit structure of solid polyelectrolyte membrane 2 from both sides.Solid polyelectrolyte membrane 2 can use has sulfonic perfluocarbon polymer film (trade name: Na Off イ オ Application 1128 (registered trade marks), デ ユ Port Application Co., Ltd.) etc.Fuel electrodes 3 comprises the 1st catalyst layer 5A and the 1st gas diffusion layers 6A, and air pole 4 comprises the 2nd catalyst layer 5B and the 2nd gas diffusion layers 6B.On the two sides of this membrane-electrode assembly 1, around catalyst layer 5A, 5B and gas diffusion layers 6A, 6B, be provided with resin system the 1st cushion part 8A and the 2nd cushion part 8B that form one with dielectric film 2.1st, thickness H1, the H2 of the 2nd cushion part 8A, 8B form to such an extent that be lower than the surface of the 1st, the 2nd gas diffusion layers 6A, 6B, and the 1st, the 2nd gas diffusion layers 6A, 6B exceed shoulder height H3, H4 than the 1st, the 2nd cushion part 8A, 8B.At inclined plane 10A, the 10B of the bight of the surperficial periphery of cushion part 8A, 8B formation with respect to surface tilt.
Then, the manufacturing installation 20 to the membrane-electrode assembly of the 1st execution mode describes.Illustrated here manufacture method is at first measured the thickness of catalyst layer and gas diffusion layers.Then, according to the thickness of catalyst layer and gas diffusion layers, determine forming thickness with respect to catalyst layer and gas diffusion layers periphery.Make the resin system cushion part of having determined thickness integrally formed on dielectric film.
Cushion part 8A, the employed resin material of 8B can adopt PEN (poly-naphthalenedicarboxylic acid glycol acid), PET (PETG), PBT (polybutylene terephthalate (PBT)), PA (polyamide), PP (polypropylene), POM (polyformaldehyde), PC (Merlon), PE (polyethylene), PS (polystyrene), ABS (acrylonitrile-butadiene-styrene (ABS)), PMMA (acrylic acid), PPS (polyphenylene sulfide), epoxy resin, phenols, unsaturated polyester (UP) and thermoplastic elastomer (TPE) etc.
As shown in Figure 3, when constituting fuel cell, membrane-electrode assembly 1 is overlapping with dividing plate 9.At this moment, cushion part 8A, 8B are close to dividing plate 9, play the function that prevents that fuel gas or cooling water from spilling. Gas diffusion layers 6A, 6B are compressed into and are higher than cushion part 8A, 8B.If excessively flatten gas diffusion layers 6A, 6B, then gaseous diffusion performance and drainage performance variation are too small as if the flattening amount in addition, then resistance increase.Therefore, it is desirable to, consider gaseous diffusion performance, drainage performance and resistance, and thickness H1, the H2 of cushion part 8A, 8B is defined as optimum value.In the present embodiment, thickness H1, the H2 of cushion part 8A, 8B set for make that shoulder height H3, H4 for example are the setting in 30～200 mu m ranges, but be not limited to the value in the above-mentioned scope.
Fig. 4 is the vertical view of the preceding preparation conjugant of expression shaping cushion part, Fig. 5 is the partial sectional view along the V-V line of Fig. 4, Fig. 6 is the end view of the manufacturing installation of expression membrane-electrode assembly of the present invention, Fig. 7 is the vertical view along the 1st shaping dies of VII-VII line of Fig. 6, Fig. 8 is the vertical view along the 2nd shaping dies of VIII-VIII line of Fig. 6, and Fig. 9 is the partial sectional view along the VI-VI line of Fig. 6.
The manufacturing installation 20 of the membrane-electrode assembly of present embodiment comprises such device: the two sides at dielectric film 2 is provided with the preparation conjugant 21 (with reference to Fig. 4,5) that is formed with catalyst layer 5A, 5B and gas diffusion layers 6A, 6B, to dielectric film 2 resin material injections cushion part 8A, 8B is carried out one injection moulding or the shaping of one injection hot compression.Preparation conjugant 21 has a plurality of through holes 22 along the edge part of dielectric film 2.
Shown in Fig. 6～9, the manufacturing installation 20 of membrane-electrode assembly has the 1st shaping dies 25A and the 2nd shaping dies 25B, push part (not shown), the 1st drive division 26A and the 2nd drive division 26B, the 1st control part 28A and the 2nd control part 28B, the 1st measurement section 29A, the 2nd measurement section 29B, it is a pair of that the 1st shaping dies 25A and the 2nd shaping dies 25B become, form mould 25A inside the 1st and contain the 1st moveable block 24A, contain the 2nd moveable block 24B in the 2nd inside that forms mould 25B, above-mentioned push part is used for pushing respectively the 1st, the 2nd shaping dies 25A, 25B, above-mentioned the 1st drive division 26A and the 2nd drive division 26B are used for driving respectively the 1st, the 2nd moveable block 24A, 24B, above-mentioned the 1st control part 28A and the 2nd control part 28B are used for controlling respectively the 1st, the 2nd drive division 26A, 26B, above-mentioned the 1st measurement section 29A is configured on the 1st shaping dies 25A, and be used to measure the aggregate thickness of the 1st catalyst layer 5A and the 1st gas diffusion layers 6A, above-mentioned the 2nd measurement section 29B is configured on the 2nd shaping dies 25B, and is used to measure the aggregate thickness of the 2nd catalyst layer 5B and the 2nd gas diffusion layers 6B.
With reference to Fig. 9, the 1st shaping dies 25A and the 2nd shaping dies 25B drive and can be toward or away from relatively by not shown push part, form in the periphery of face toward each other and clip the 1st handle part 31A and the 2nd handle part 31B that dielectric film 2 edge parts are controlled dielectric film 2 edge parts.On the face relative of the 2nd handle part 31B, along circumferentially being formed with a plurality of juts 32, on the face relative of the 1st handle part 31A, form for the chimeric fitting portion 33 of concavity jut 32 with the 2nd handle part 31B with the 1st handle part 31A.1st, the inboard bight of the 2nd handle part 31A, 31B is formed with handle part inclined plane 35A, the 35B with respect to the face tilt of controlling dielectric film 2, is provided with at least one cast gate 36A, the 36B that is used for resin material injection on this handle part inclined plane 35A, 35B.
On the 1st shaping dies 25A and the 2nd shaping dies 25B relative face separately, form the 1st accommodation section 39A and the 2nd accommodation section 39B of groove shapes along handle part 31A, 31B medial surface.In the 1st accommodation section 39A, hold the 1st moveable block 24A, in the 2nd accommodation section 39B, hold the 2nd moveable block 24B.As Fig. 7, shown in Figure 8, corresponding to the shape of the 1st accommodation section 39A and the 2nd accommodation section 39B, the 1st moveable block 24A and the 2nd moveable block 24B are respectively along circumferentially being divided into 4.In addition, do not limit and cut apart number, can not cut apart yet.
Drive by the 1st drive division 26A, the 1st moveable block 24A is moved to the direction advance and retreat of the preparation conjugant 21 that is provided with servomotor or start cylinder (cylinder, hydraulic cylinder) etc.In addition, drive by the 2nd drive division 26B equally, the 2nd moveable block 24B is moved to the direction advance and retreat of the preparation conjugant 21 that is provided with servomotor or start cylinder (cylinder, hydraulic cylinder) etc.On the 1st moveable block 24A, form 1st opposite face relative with preparing conjugant 21, form 2nd opposite face relative with preparing combination 21 on the 2nd moveable block 24B, opposite face inside portion 41A, the 41B of an opposite side (inboard) with handle part 31A, 31B of each opposite face and gas diffusion layers 6A, 6B peripheral end are relative.The advance and retreat of controlling the 1st, the 2nd moveable block 24A, 24B by the 1st, the 2nd control part 28A, 28B move respectively.
In the 1st shaping dies 25, on the position relative at least 1 the 1st measurement section 29A that measures the 1st catalyst layer 5A and the 1st gas diffusion layers 6A thickness is set with the 1st gas diffusion layers 6A of preparation conjugant 21.The 1st measurement section 29A is for example pressure gauge, conversion pressure the 1st catalyst layer 5A when contacting the 1st gas diffusion layers 6A with predetermined overhang and the thickness of the 1st gas diffusion layers 6A.In addition, the 1st measurement section 29A also can use for example displacement meter etc.Each the 1st measurement section 29A connects the 1st control part 28A, is imported into the 1st control part 28A from the measuring-signal of the 1st measurement section 29A.The 1st control part 28A based on the signal of a plurality of measurement section 29A, calculate the 1st catalyst layer 5A and the 1st gas diffusion layers 6A average thickness value, can the 1st moveable block 24A advance and retreat be moved according to this measurement result.
In addition, same, in the 2nd shaping dies 25B, on the position relative at least 1 the 2nd measurement section 29B that measures the 2nd catalyst layer 5B and the 2nd gas diffusion layers 6B thickness is set with the 2nd gas diffusion layers 6B of preparation conjugant 21.The 2nd measurement section 29B is for example pressure gauge, conversion pressure the 2nd catalyst layer 5B when contacting the 2nd gas diffusion layers 6B with predetermined overhang and the thickness of the 2nd gas diffusion layers 6B.In addition, the 2nd measurement section 29B also can use for example displacement meter etc.Each the 2nd measurement section 29B is connected in the 2nd control part 28B, and the measuring-signal of the 2nd measurement section 29B is imported into the 2nd control part 28B.The 2nd control part 28B calculates the 2nd catalyst layer 5B and the 2nd gas diffusion layers 6B average thickness value based on the signal of a plurality of the 2nd measurement section 29B, according to this measurement result, the 2nd moveable block 24B advance and retreat is moved.
Then, the manufacture method to the membrane-electrode assembly 1 of the 1st execution mode describes.
Partial sectional view when Figure 10 is the preparation conjugant that has been illustrated in mounting in the manufacturing installation of present embodiment, Figure 11 for the shaping dies matched moulds of this manufacturing installation of expression the time partial sectional view, Figure 12 is the partial sectional view of expression when the shaping dies of this manufacturing installation has been injected resin material.
As shown in figure 10, initial, preparation conjugant 21 is set on the 2nd shaping dies 25B.At this moment, make the jut 32 of the 2nd shaping dies 25B pass the through hole 22 for preparing conjugant 21.Thereby, can when injection moulding, keep preparing conjugant 21 securely.
Then, as shown in figure 11, make the 1st shaping dies 25A and the 2nd shaping dies 25B near coming matched moulds by push part.Thereby, between the 1st handle part 31A and the 2nd handle part 31B, clamp and control the dielectric film 2 for preparing conjugant 21.The jut 32 of the 2nd handle part 31B is fitted to the fitting portion 33 of the 1st handle part 31A.In addition, opposite face inside portion 41A, the 41B of the 1st moveable block 24A and the 2nd moveable block 2 4B are pushing and are contacting the 1st, the 2nd gas diffusion layers 6A, 6B.Thereby, form the 1st injection space 4 2A and the 2nd injection space 42B as formingspace in the outside of gas diffusion layers 6A, the 6B of dielectric film 2 and catalyst layer 5A, 5B.
Then, according to the force value signal of importing to the 1st control part 28A from a plurality of the 1st measurement section 29A that contact the 1st gas diffusion layers 6A, calculate the 1st catalyst layer 5A and the 1st gas diffusion layers 6A average thickness value, control the 1st drive division 26A, the 1st moveable block 24A is only moved with the ormal weight advance and retreat to result that should thickness average value.At this, preferably force value of being measured by the 1st measurement section 29A and the thickness average value of the 1st catalyst layer 5A and the 1st gas diffusion layers 6A are calculated like this, that is, concern by testing to measure and store between force value and the thickness in advance, thereby calculate above-mentioned force value and thickness average value.In addition, also can replace measured pressure value, and use displacement meter or laser measuring apparatus etc. to measure, be thickness but do not need to test conversion pressure in advance this moment.As mentioned above, can suitably use known technology, omit its details for thickness measure.
In addition, equally, according to the signal of importing to the 2nd control part 28B from a plurality of the 2nd measurement section 29B that contact the 2nd gas diffusion layers 6B, calculate the 2nd catalyst layer 5B and the 2nd gas diffusion layers 6B average thickness value, control the 2nd drive division 26B, the 2nd moveable block 24B is only moved with the ormal weight advance and retreat to result that should thickness average value.
In addition, the thickness of catalyst layer 5A, 5B is minimum, is 3～20 μ m, and deviation is also little, and in contrast, the thickness of gas diffusion layers 6A, 6B is bigger, is that deviation is also bigger about 200～600 μ m.Therefore, can only predict the thickness of gas diffusion layers 6A, 6B and be pasted on to form preparation conjugant 21 on the solid polyelectrolyte membrane 2, add that the thickness of catalyst layer is (about 3～20 μ m, perhaps minimum, be considered as 0), thus the thickness of catalyst layer and gas diffusion layers measured.But, in this case, can not in shaping dies, measure, aspect operation, be inferior to present embodiment.
Afterwards, as shown in figure 12, by cast gate 36A, 36B, from supply pipe 37A, 37B to the 1st injection space 42A and the 2nd injection space 42B resin material injection.
When resin material is thermoplastic resin, spray the resin material of molten state, after temperature reduction, resin material solidify, make the 1st shaping dies 25A and the 2nd shaping dies 25B demoulding, take out the membrane-electrode assembly 1 that is formed with the 1st cushion part 8A and the 2nd cushion part 8B.
When resin material is thermosetting resin, spray aqueous resin material, resin material is heated to more than or equal to curing temperature makes its curing by being arranged on heater (not shown) on the 1st shaping dies 25A and the 2nd shaping dies 25B, make the 1st shaping dies 25A and the 2nd shaping dies 25B demoulding then, take out the membrane-electrode assembly 1 that forms by the 1st cushion part 8A and the 2nd cushion part 8B.
For the membrane-electrode assembly of making as mentioned above 1, because resin material is injected from inclined plane 10A, 10B, therefore, the excision residue that can prevent cast gate 36A, 36B is outstanding and outstanding to peripheral direction from the surface that contacts with dividing plate 9, when constituting fuel cell, can keep close property well with dividing plate 9.
In addition, owing to the thickness that makes moveable block 24A, 24B correspond respectively to catalyst layer 5A and gas diffusion layers 6A, catalyst layer 5B and gas diffusion layers 6B moves, therefore, cushion part 8A, 8B can be formed the optimum thickness of corresponding catalyst layer 5A, catalyst layer 5B and gas diffusion layers 6A, 6B.
This optimum thickness be meant thickness H1, the H2 of liner be respectively for example catalyst layer 5A and gas diffusion layers 6A, catalyst layer 5B and gas diffusion layers 6B thickness 80% etc.In addition, can be according to the kind of gas diffusion layers and this ratio of appropriate change.
In addition, when injection moulding, on one side moveable block 24A, 24B on one side Compressed Gas diffusion layer 6A, 6B be in contact with it, therefore, can suppress resin material to gas diffusion layers 6A, 6B infiltration, the gaseous diffusion performance that can suppress gas diffusion layers 6A, 6B reduces and the drainage performance reduction.
In addition, owing to can measure the thickness of catalyst layer 5A and gas diffusion layers 6A, catalyst layer 5B and gas diffusion layers 6B by measurement section 29A, 29B, set thickness H1, the H2 of cushion part 8A, 8B, therefore, even when deviation appears in the thickness of gas diffusion layers 6A, 6B, also shoulder height H3, H4 can be remained optimum value, the gaseous diffusion performance that can suppress gas diffusion layers 6A, 6B reduces and the drainage performance reduction, and the generating efficiency that suppresses fuel cell reduces.
In addition, owing to can set shoulder height H3, H4 respectively, therefore,, also can remain optimal shoulder height H3, H4 respectively even anode one side of gas diffusion layers 6A, 6B and negative electrode one side are different materials.
In addition, since integrally formed with the integrally formed cushion part 8A of optimum size, 8B, therefore, do not need to prepare in advance various gasket, can cutting down cost.
In addition,,, therefore, can cut down part count because cushion part 8A, 8B be by integrally formed for the membrane-electrode assembly 1 of present embodiment, in addition, because therefore integrally formed cushion part 8A, 8B in advance, improved position precision.In addition, when liner is provided with as other members, may between liner and dielectric film, sneak into bubble or foreign matter, and in the manufacture method of the related membrane-electrode assembly of present embodiment, because therefore integrally formed cushion part 8A, 8B, are difficult to sneak into bubble or foreign matter in advance.In addition, during assembling fuel cell, do not need superimposed liner, therefore, can cut down man-hour as other members.
The 2nd execution mode
On compression molding cushion part 8A, 8B this point, the manufacturing installation 60 of the membrane-electrode assembly of the 2nd execution mode and manufacture method are different with the manufacturing installation 20 and the manufacture method of the 1st execution mode of injection moulding or injection hot compression shaping cushion part 8A, 8B.In addition, the membrane-electrode assembly of making in the 2nd execution mode 1 has membrane-electrode assembly 1 identical construction with the 1st execution mode.
Figure 13 is the partial sectional view of manufacturing installation of the membrane-electrode assembly of expression the 2nd execution mode.In addition, to having marked identical Reference numeral,, omit its explanation for fear of repetition with position that the 1st execution mode has an identical function.
The manufacturing installation 50 of the membrane-electrode assembly of the 2nd execution mode comprises such device, promptly, two sides at dielectric film 2 is provided with the preparation conjugant 21 (with reference to Fig. 4,5) that is formed with catalyst layer 5A, 5B and gas diffusion layers 6A, 6B, with dielectric film 2 compression molding cushion part integratedly 8A, 8B.
As shown in figure 13, this manufacturing installation 50 has the 1st paired shaping dies 52A and the 2nd shaping dies 52B, and the 1st shaping dies 52A comprises the 1st moveable block 51A in inside, and the 2nd shaping dies 52B comprises the 2nd moveable block 51B in inside.
The 1st moveable block 51A has the 1st heating part 53 that is used to heat the 1st moveable block 51A.The 1st heating part 53 has the elongated shape that extends along the length direction of the 1st moveable block 51A, in the present embodiment, expect to be the heat transfer unit heater, but also can make other structures, for example, also can make the structure that uses heating generator or circulation high temperature fluid.In addition, because the heat transfer unit heater is a known technology, therefore, omit its detailed description.The 1st heating part 53 is connected in external power source unit (not shown), by controlling this power subsystem, can set the temperature of the 1st heating part 53 arbitrarily.
The 2nd moveable block 51B has the piece cooling end 55 that is used to heat the 2nd heating part 54 of the 2nd moveable block 51B and is used to cool off the 2nd moveable block 51B.The 2nd heating part 54 has the elongated shape that extends along the length direction of the 2nd moveable block 51B, in the present embodiment, expect for can carrying out the heating generator unit of Fast Heating, but also can construct for other, for example, also can be for using the structure of electrothermal heater or circulation high temperature fluid.In addition, because the heating generator unit is a known technology, therefore, omit its detailed description.The 2nd heating part 54 is connected in external power source unit (not shown), by controlling this power subsystem, can set the temperature of the 2nd heating part 54 arbitrarily.
In the 1st central portion 56A the 1st shaping dies 52A, that surrounded by the 1st moveable block 51A and come close to or in contact with the gas diffusion layers 6A of preparation conjugant 21, be provided with the 1st shaping cooling end 57A.In addition, in the 2nd central portion 56B the 2nd shaping dies 52B, that surrounded by the 2nd moveable block 51B and come close to or in contact with the gas diffusion layers 6B of preparation conjugant 21, be provided with the 2nd shaping cooling end 57B.
The 1st shaping cooling end 57A and the 2nd shaping cooling end 57B have the 1st cooling flowing path 58A and the 2nd cooling flowing path 58B respectively, can be from outside cooling fluid supply source (not shown) by cooling fluid supply pipe 59A, 59B, in the 1st cooling flowing path 58A and the 2nd cooling flowing path 58B, supply with coolant (for example, cooling water).The 1st cooling flowing path 58A is by respectively along a plurality of streams of the length direction of the 1st moveable block 51A, form in the mode around surrounding in the 1st central portion 56A.In addition, the 2nd cooling flowing path 58B is also by respectively along a plurality of streams of the length direction of the 2nd moveable block 51B, form in the mode around surrounding in the 2nd central portion 56B.In addition, not limiting for the stream shape is special, for example, also can not be to have a plurality of streams to form, and is formed by the single stream that the length direction along the 1st, the 2nd moveable block 51A, 51B bends to rectangle.
Then, the manufacture method to the membrane-electrode assembly of the 2nd execution mode describes.
Figure 14 is the partial sectional view when being illustrated in the part of mounting packing material in the manufacturing installation of the 2nd execution mode and preparation conjugant, Figure 15 is the partial sectional view of expression when being about to make the shaping dies matched moulds of same manufacturing installation, and Figure 16 is that expression makes the shaping dies matched moulds of same manufacturing installation and partial sectional view when having carried out compression molding.
At first, in the 1st, the 2nd cooling flowing path 58A, 58B, supply with coolant from cooling fluid supply source, cool off the 1st central portion 56A and the 2nd central portion 56B of the 1st shaping dies 52A and the 2nd shaping dies 52B, and, make 53 work of the 1st heating part, heat the 1st moveable block 51A.In addition, in the fabrication cycles afterwards, while always keep the state that cools off the 1st central portion 56A and the 2nd central portion 56B, heats the 1st moveable block 51A.
Then, make 55 work of piece cooling end, cool off the 2nd moveable block 51B.
Then, as shown in figure 14,, will prepare conjugant 21 and be arranged at the 2nd shaping dies 52B with after the 2nd packing material 60B (resin material) mounting is on the 2nd moveable block 51B of the 2nd shaping dies 52B.At this moment, run through the through hole 22 for preparing conjugant 21, can when compression molding described later, keep preparing conjugant 21 reliably by the jut 32 that makes the 2nd shaping dies 52B.Afterwards, as shown in figure 15, the preparation conjugant 21 with the corresponding position of the 1st moveable block 51B, mounting the 1st packing material 60A (resin material).
Above-mentioned the 1st, the 2nd packing material 60A, 60B all are to be the flaky material of main component with the heat-curing resin, for example, and can be by being attracted carrying to put into the optional position by spongiform attraction pad.In addition, 1st, the 2nd packing material 60A, 60B also can do material or gel (muddy) powdered, that utilize the preparation heating that the dusty material semi-solid preparation is formed, becoming under Powdered, the gelatinous situation, can put into the optional position by being discharged from from nozzle.In addition, the 1st, the 2nd packing material 60A, 60B are formed by the ring-type of surrounding gas diffusion layers 6A, 6B periphery, are provided with but also can be split into lumpily.
Then, as shown in figure 16, utilize pressing component make the 1st shaping dies 52A and the 2nd shaping dies 52B near and carry out matched moulds, and, the piece cooling end 55 of the 2nd moveable block 51B is quit work, make the 2nd heating part 54, be the high-frequency heating cell operation, carry out Fast Heating.At this moment, the dielectric film 2 of preparation conjugant 21 is sandwiched between the 1st handle part 31A and the 2nd handle part 31B and is controlled, and the jut 32 of the 2nd handle part 31B is embedded in the fitting portion 33 of the 1st handle part 31A.In addition, opposite face inside portion 41A, the 41B of the 1st moveable block 51A and the 2nd moveable block 51B push the 1st and the 2nd gas diffusion layers 6A, 6B, and contact with them.
1st, the 2nd packing material 60A, 60B can utilize by the 1st moveable block 51A and the 2nd moveable block 51B of the 1st heating part 53 and 54 heating of the 2nd heating part and dissolve.The the 1st, the 2nd packing material 60A, 60B be in the state of dissolving during in, calculate the thickness average value of the 1st catalyst layer 5A and the 1st gas diffusion layers 6A by a plurality of the 1st test department 29A.With with the corresponding ormal weight of thickness average value of this 1st catalyst layer 5A that calculates and the 1st gas diffusion layers 6A, control the 1st drive division 26A, the 1st moveable block 51A is seesawed.
Equally, the 1st, the 2nd packing material 60A, 60B be in the state of dissolving during in, calculate the thickness average value of the 2nd catalyst layer 5B and the 2nd gas diffusion layers 6B by a plurality of the 2nd test department 29B.Control the 2nd drive division 26B, the 2nd moveable block 51B is moved forward and backward with the corresponding ormal weight of this result.
Afterwards, the position and the heating-up temperature that keep the 1st and the 2nd moveable block 51A, 51B, till the 1st, the 2nd packing material 60A, 60B solidify, even the demoulding, also be after making the 1st, the 2nd packing material 60A, 60B can keep the sclerous reaction of the degree of shape to finish, make the 1st shaping dies 52A and the 2nd shaping dies 52B demoulding.Thus, can take out the membrane-electrode assembly 1 that is formed with the 1st cushion part 8A and the 2nd cushion part 8B.Then, the 2nd heating part 54 is quit work, heating finishes.
Afterwards, make 55 work of piece cooling end, cool off the 2nd moveable block 51B.Making after the 2nd moveable block 51B is reduced to set point of temperature, begin to make next membrane-electrode assembly 1.
Manufacturing installation 50 and manufacture method as above-mentioned the 2nd execution mode, even do not use injection moulding or injection hot compression to be shaped, and the use compression molding, also can with the 1st execution mode similarly with the corresponding optimum thickness of thickness of catalyst layer 5A and gas diffusion layers 6A, catalyst layer 5B and gas diffusion layers 6B, form cushion part 8A, 8B.
In addition, as the effect different with the 1st execution mode, owing in the 1st, the 2nd central portion 56A, 56B that gas diffusion layers 6A, 6B with preparation conjugant 21 come close to or in contact with, be provided with the 1st, the 2nd shaping dies cooling end 57A, 57B, therefore, the excessive temperature that does not need the position of heating that can avoid preparing conjugant 21 rises.
In addition, before the 1st shaping dies 52A and the 2nd shaping dies 52B matched moulds, under preparation conjugant 21, dispose the 2nd packing material 60B, therefore, it is sagging to utilize the 2nd packing material 60B to prevent to prepare conjugant 21, preparation conjugant 21 can be remained on more suitable position.
In addition, owing in the 1st, the 2nd moveable block 51A, 51B, be provided with the 1st, the 2nd heating part 53,54, therefore, the position that can concentrate heating to heat.
In addition, owing in the 2nd moveable block 51B, be provided with piece cooling end 55, therefore, can concentrate heater configuration that the 2nd moveable block 51B of the 2nd packing material 60B is arranged.Therefore, when making membrane-electrode assembly 1 successively, can cool off the 2nd moveable block 51B at short notice, thereby can shorten the activity duration.
In addition, the 1st, the 2nd shaping dies cooling end 57A, the 57B of the manufacturing installation 50 of the 2nd execution mode, the 2nd heating part 53,54 and piece cooling end 55 are also applicable to the 1st execution mode.
The 3rd execution mode
The manufacturing installation 70 and the manufacture method of the membrane-electrode assembly of the 3rd execution mode, a cushion part 8A being carried out injection moulding or the shaping of injection hot compression, another cushion part 8B being carried out on the compression molding this point, different with the manufacturing installation 20,50 and the manufacture method of the 1st, the 2nd execution mode.In addition, the membrane-electrode assembly of making in the 3rd execution mode 1 has the structure identical with the membrane-electrode assembly 1 of the 1st, the 2nd execution mode.
Figure 17 is the partial sectional view of the manufacturing installation of the membrane-electrode assembly of expression the 3rd execution mode.In addition, mark same tag, omit its explanation for fear of repetition for the position that has with the 1st, the 2nd execution mode identical function.
The manufacturing installation 70 of the film electrolysis conjugant of the 3rd execution mode is provided with preparation conjugant 21 (with reference to Fig. 4, Fig. 5), this preparation conjugant 21 forms catalyst layer 5A, 5B and gas diffusion layers 6A, 6B on the two sides of dielectric film 2, and this manufacturing installation 70 comprises the device that carries out injection moulding or injection hot compression shaping, another liner 8B is carried out compression molding with respect to 2 couples one cushion part 8A of dielectric film.
The manufacturing installation 70 of this membrane-electrode assembly and the manufacturing installation 50 of the 2nd execution mode except a part different outside, all the other are all identical, that is, only on the 1st formed film 71A, be formed with cast gate 72, on cast gate 72, link the supply pipe 73 this point differences of supplying with resin material arranged.Cast gate 72 is identical with the cast gate 36A of the 1st execution mode, waters interruption-forming by pin hole cast gate or film crack with film like width.
The manufacture method of the film electrolysis conjugant of the 3rd execution mode then, is described.
Figure 18 is the partial sectional view when being illustrated in mounting part packing material and preparation conjugant on the manufacturing installation of the 3rd execution mode, Figure 19 for the formed film matched moulds of this manufacturing installation of expression the time partial sectional view, behind the finishing die matched moulds of Figure 20 for this manufacturing installation of expression, the partial sectional view when compression molding and injection moulding finish.
At first, the 1st, the 2nd cooling flowing path 58A, 58B are supplied with coolant, cool off the 1st central portion 56A and the 2nd central portion 56B of the 1st formed film 71A and the 2nd formed film 71B, and make 53 work of the 1st heating part, heat the 1st moveable block 51A from the cooling fluid supply source.In addition, in the fabrication cycles afterwards, always keep cooling the 1st central portion 56A and the 2nd central portion 56B and heat the state of the 1st moveable block 51A.
Then, make 55 work of piece cooling end, cool off the 2nd moveable block 51B.
Then, as shown in figure 18, behind mounting the 2nd packing material 74 (resin material) on the 2nd moveable block 51B of the 2nd formed film 71B, preparation conjugant 21 is set on the 2nd finishing die 71B.At this moment, pass the through hole 22 for preparing conjugant 21, can when compression molding described later, positively keep preparing conjugant 21 by the jut 32 that makes the 2nd finishing die 71B.
Above-mentioned the 2nd packing material 74 is identical with the 2nd execution mode, is to be the plate shape material of main component with the heat reactive resin, with spongiform attraction pad absorption carrying, can put into position arbitrarily by for example.In addition, the 2nd packing material 74 also can be material or gel (muddy) Powdered, make its semi-solid preparation by preparation heating powder shape material, at the 2nd packing material 74 is under Powdered, the gelatinous situation, can be by putting into position arbitrarily from the nozzle ejection.In addition, the 2nd packing material 74 is formed by the annular shape around the periphery of gas diffusion layers 6B, but the 2nd packing material 74 also can be cut apart polylith is set.
Then, as shown in figure 19, utilize the pushing member to make that the 1st finishing die 71A and the 2nd finishing die 71B are approaching to carry out matched moulds, and the piece cooling end 55 of the 2nd moveable block 51B is quit work, make as the heating generator cell operation of the 2nd heating part 54 and heat rapidly.At this moment, the dielectric film 2 of preparation conjugant 21 is sandwiched between the 1st handle part 31A and the 2nd handle part 31B and is controlled fitting portion 33 tablings of the jut 32 of the 2nd handle part 31B and the 1st handle part 31A.In addition, opposite face inside portion 41A, the 41B of the 1st moveable block 51A and the 2nd moveable block 51B push the 1st, the 2nd gas diffusion layers 6A, 6B and contact with them.Thus, form the 1st injection space 75 at the gas diffusion layers 6A of dielectric film 2 and the outside of catalyst layer 5A.
The 2nd packing material 74 is by being melted by the 2nd moveable block 51B of the 2nd heating part 54 heating.During the 2nd packing material 74 molten states, calculate the thickness average value of the 1st catalyst layer 5A and the 1st gas diffusion layers 6A by a plurality of the 1st 29A of instrumentation portion, control the 1st drive division 26A, make the 1st moveable block 51A advance and retreat mobile accordingly with ormal weight according to this result.
In addition, similarly, calculate the thickness average value of the 2nd catalyst layer 5B and the 2nd gas diffusion layers 6B, control the 2nd drive division 26B, make the 2nd moveable block 51B advance and retreat mobile accordingly with ormal weight according to this result by a plurality of the 2nd 29B of instrumentation portion.
Then, as shown in figure 20, pass through cast gate 72 to the 1st injection space 75 resin material injections from supply pipe 73.In addition, resin material preferably uses and the 2nd packing material 74 identical materials, but not necessarily is defined in this.
Then, the position and the heating-up temperature that before the 2nd packing material 74 and injected resin material solidify, keep the 1st, the 2nd moveable block 51A, 51B, even when the demoulding also will reach the degree of the shape that can keep the 2nd packing material 74 and resin material after curing reaction finishes, make the 1st finishing die 71A and the 2nd finishing die 71B demoulding.Thus, take out the membrane-electrode assembly 1 of be shaped the 1st cushion part 8A and the 2nd cushion part 8B.Then, the work of the 2nd heating part 54 is stopped, heating finishes.
Then, make 55 work of piece cooling end, cool off the 2nd moveable block 51B.After the 2nd moveable block 51B is reduced to set point of temperature, begin to make next membrane-electrode assembly 1.
And, the invention is not restricted to above-mentioned execution mode, can in the scope of claims, carry out various changes.For example, also can on the 1st shaping dies 25A, form jut 32,, then also not necessarily need to be provided with jut if can when injection moulding, keep preparation conjugant 21.
Claims (13)
1. the manufacturing installation of a membrane-electrode assembly, this membrane-electrode assembly is provided with catalyst layer and gas diffusion layers on the dielectric film two sides respectively, it is characterized in that, and this manufacturing installation comprises:
Shaping dies, this shaping dies is used for resin material is formed, and is formed with to control the above-mentioned catalyst layer of above-mentioned dielectric film and the handle part of gas diffusion layers periphery from the two sides;
Measurement section, this measurement section is used to measure the thickness of above-mentioned gas diffusion layer;
Moveable block, this moveable block move with respect to the dielectric film advance and retreat along above-mentioned handle part medial surface, form the opposite face relative with above-mentioned dielectric film, and a side opposite with handle part of this opposite face is relative with the gas diffusion layers peripheral end;
Control part, the advance and retreat of controlling above-mentioned moveable block according to the thickness of catalyst layer of being measured by above-mentioned measurement section and gas diffusion layers move.
2. the manufacturing installation of membrane-electrode assembly as claimed in claim 1, it is characterized in that, above-mentioned handle part has the handle part inclined plane that forms with respect to the dielectric film surface tilt in the inboard bight of this handle part, is provided with the cast gate that is used for resin material injection on above-mentioned handle part inclined plane.
3. the manufacturing installation of membrane-electrode assembly as claimed in claim 2 is characterized in that, above-mentioned cast gate is pin hole cast gate or film crack cast gate.
4. as the manufacturing installation of any described membrane-electrode assembly in the claim 1～3, it is characterized in that above-mentioned moveable block has the heating part that is used for this moveable block heating.
5. as the manufacturing installation of any described membrane-electrode assembly in the claim 1～3, it is characterized in that above-mentioned moveable block has the cooling end that is used for this moveable block cooling.
6. as the manufacturing installation of any described membrane-electrode assembly in the claim 1～3, it is characterized in that, above-mentioned shaping dies has the shaping dies cooling end, and this shaping dies cooling end is used for the part near to or in contact with the above-mentioned gas diffusion layer of this shaping dies is cooled off.
7. a manufacturing installation that uses the described membrane-electrode assembly of claim 1 is made the manufacture method of membrane-electrode assembly, and this membrane-electrode assembly is provided with catalyst layer and gas diffusion layers on the dielectric film two sides respectively, it is characterized in that,
Control forming thickness and in the one side and the integrally formed resinous cushion part of periphery of above-mentioned catalyst layer and gas diffusion layers at least of above-mentioned dielectric film according to the thickness of above-mentioned catalyst layer and gas diffusion layers, the thickness of this resinous cushion part forms to such an extent that be lower than the surface of gas diffusion layers.
8. the manufacture method of membrane-electrode assembly as claimed in claim 7 is characterized in that, integrally formed thickness is fit to the cushion part of each face on above-mentioned dielectric film two sides.
9. the manufacture method of membrane-electrode assembly as claimed in claim 7 is characterized in that, measures the thickness of above-mentioned catalyst layer and gas diffusion layers, forms the corresponding cushion part of thickness of thickness and this catalyst layer and gas diffusion layers.
10. as the manufacture method of any described membrane-electrode assembly in the claim 7～9, it is characterized in that, form above-mentioned cushion part by injection moulding.
11. the manufacture method of membrane-electrode assembly as claimed in claim 10, it is characterized in that, so that becoming the mode on inclined plane, above-mentioned cushion part periphery bight forms formingspace, from being located at cast gate resin material injection in above-mentioned formingspace with the shaping dies at this corresponding position, inclined plane by shaping dies.
12. the manufacture method of membrane-electrode assembly as claimed in claim 11 is characterized in that, above-mentioned cast gate is pin hole cast gate or film crack cast gate.
13. the manufacture method as any described membrane-electrode assembly in the claim 7～9 is characterized in that, by the compression molding above-mentioned cushion part that is shaped.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007070874 | 2007-03-19 | ||
| JP2007-070874 | 2007-03-19 | ||
| JP2007304692A JP5298511B2 (en) | 2007-03-19 | 2007-11-26 | Membrane electrode assembly manufacturing method, membrane electrode assembly, and apparatus for manufacturing the same |
| JP2007-304692 | 2007-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101276920A CN101276920A (en) | 2008-10-01 |
| CN101276920B true CN101276920B (en) | 2011-12-07 |
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| CN2008100855790A Active CN101276920B (en) | 2007-03-19 | 2008-03-19 | A manufacturing method of membrane electrode assembly, membrane electrode assembly and manufacturing device thereof |
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| Country | Link |
|---|---|
| JP (1) | JP5298511B2 (en) |
| KR (1) | KR100989972B1 (en) |
| CN (1) | CN101276920B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FI127413B (en) | 2008-11-19 | 2018-05-31 | Outotec Oyj | Method and device for providing the edge of a starting sheet, for an electrode to be used in electrolytic refining or winning of metals, with a plastic strip |
| EP2525429B1 (en) | 2010-01-14 | 2015-09-09 | Honda Motor Co., Ltd. | Fuel cell |
| JP6751891B2 (en) * | 2015-03-30 | 2020-09-09 | パナソニックＩｐマネジメント株式会社 | Fuel cell and manufacturing method of fuel cell |
| CN107408712B (en) * | 2015-03-31 | 2019-03-12 | 本田技研工业株式会社 | Separator for fuel battery and its manufacturing method |
| KR102463178B1 (en) * | 2016-03-11 | 2022-11-03 | 현대자동차 주식회사 | Device and metod for manufacturing membrane-electrode assembly of fuel cell |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6667124B2 (en) * | 2000-07-19 | 2003-12-23 | Honda Giken Kogyo Kabushiki Kaisha | Seal for fuel cell and forming method therefor |
| CN1853301A (en) * | 2003-07-14 | 2006-10-25 | 乌米科雷股份两合公司 | Membrane-electrode unit for electrochemistry device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002324556A (en) * | 2001-04-26 | 2002-11-08 | Kanegafuchi Chem Ind Co Ltd | Solid polymer fuel cell |
| WO2003063280A2 (en) | 2002-01-22 | 2003-07-31 | E.I. Du Pont De Nemours And Company | Unitized membrane electrode assembly and process for its preparation |
| US20060073373A1 (en) | 2004-05-28 | 2006-04-06 | Peter Andrin | Unitized electrochemical cell sub-assembly and the method of making the same |
| US7771181B2 (en) * | 2005-11-14 | 2010-08-10 | 3M Innovative Properties Company | Gasket molding system for membrane electrode assemblies |
-
2007
- 2007-11-26 JP JP2007304692A patent/JP5298511B2/en not_active Expired - Fee Related
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- 2008-03-18 KR KR1020080024792A patent/KR100989972B1/en active IP Right Grant
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6667124B2 (en) * | 2000-07-19 | 2003-12-23 | Honda Giken Kogyo Kabushiki Kaisha | Seal for fuel cell and forming method therefor |
| CN1853301A (en) * | 2003-07-14 | 2006-10-25 | 乌米科雷股份两合公司 | Membrane-electrode unit for electrochemistry device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101276920A (en) | 2008-10-01 |
| KR20080085730A (en) | 2008-09-24 |
| KR100989972B1 (en) | 2010-10-26 |
| JP2008262893A (en) | 2008-10-30 |
| JP5298511B2 (en) | 2013-09-25 |
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