CN103811770B - Fuel cell membrane electrode prepares fixture and processing technique thereof - Google Patents
Fuel cell membrane electrode prepares fixture and processing technique thereof Download PDFInfo
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- CN103811770B CN103811770B CN201410024434.5A CN201410024434A CN103811770B CN 103811770 B CN103811770 B CN 103811770B CN 201410024434 A CN201410024434 A CN 201410024434A CN 103811770 B CN103811770 B CN 103811770B
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- hot pressing
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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]
- H01M8/1006—Corrugated, curved or wave-shaped MEA
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/005—Vacuum work holders
-
- 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
Abstract
The invention discloses a kind of fuel cell membrane electrode and prepare fixture, comprise fixtures for painting and hot-pressing fixture, by metal upper ledge, metal lower frame, binder clip, constitute general purpose module；General purpose module constitutes fixtures for painting after covering plate combination with air-breathing chassis, plastic film mulch chassis, spraying, can be simultaneously used for front spraying and reverse side sprays；General purpose module and even number dummy block, hot pressing constitute hot-pressing fixture, and processing technique after assembling backing plate, two hot pressing location-plates, hot pressing upper cover plate, hot pressing lower cover, hot pressing limit chunk combinations.Present invention achieves front fixtures for painting, reverse side fixtures for painting and the combination of hot-pressing fixture, avoid membrane electrode to prepare in each technique because changing the repeated disassembled and assembled of the PEM that fixture is caused, and then avoid the fold of PEM in membrane electrode, position skew, pollute even breakage, improve the yield rate of membrane electrode product, save fixture built-up time, workload.
Description
Technical field
The present invention relates to field of fuel cell technology, especially a kind of fuel cell membrane electrode prepares fixture, and processing technique.
Background technology
Membrane electrode technology of preparing is the technology directly affecting fuel battery performance; but difficulty that membrane electrode scale manufactures is relatively big, the PEM being primarily due in membrane electrode is the most special, and first it is the thinnest; between the most only tens microns to tens microns, mechanical strength is the highest；Secondly PEM is very sensitive to ambient humidity, temperature, exposes and can quickly absorb water in atmosphere, causes the size of film significantly to swell, fold, temperature raise can fast dewatering, cause film size significantly to be shunk, thickness change.PEM is the most very sensitive to water, alcohol, contact water or alcohol, can cause significantly the swelling of film size, fold.
But, in whole membrane electrode manufacturing process, the requirement homogeneous to the flatness of PEM, thickness is the highest, it is desirable to be the most all smooth.But in membrane electrode manufacture process, tow sides at PEM uniformly coat catalyst solution, with in high temperature evaporation catalyst solvent, Hot pressing diffusion layer or the manufacturing process such as anode and cathode and frame material, inevitably need to contact with empty gas and water, alcohol, and repeatedly by 90 DEG C～150 DEG C of conversion between high temperature and room temperature, also suffer the dual test of temperature and pressure in hot press.
Therefore, fixture used in membrane electrode preparation is the most crucial, fully relies on it and carrys out supported proton exchange film, until completing the preparation of membrane electrode.In the prior art, it will usually separately design special fixture for each operation and clamp, such as fixtures for painting during spraying catalyst, hot-pressing fixture when having arrived hot pressing membrane electrode technique, is then used instead.The fixture of each operation the most typically can be designed to position with bolt or alignment pin, clamps the PEM of centre with upper and lower two flat boards or smooth housing.But, PEM is the thinnest, also can absorb water in atmosphere, understands fold during dismounting, and change in size can be very big, and location pitch of holes can offset, and the repeatability positioned by screw is very poor.The unbalance stress of bolt clamping, easily causes fold when film heat shrinkable.It addition, bolt design too much, also can cause in manufacture the workload dismounting screw the biggest in fixture.It addition, the mechanical strength of film is the highest, fragile during repeated disassembled and assembled, also it is very difficult to pave after water suction deformation in atmosphere, is also easily stained with dirt contaminated.
Such as number of patent application 201210490779.0 of the prior art, only devise the hot-pressing fixture of membrane electrode, i.e. reorientated PEM, anode and cathode and frame material with the cover frame up and down in hot-pressing fixture and bolt, placed into hot press and carry out hot pressing.
Number of patent application 201220568933.7, can be seen that from embodiment, only devise the fixtures for painting of membrane electrode, although adding anti-skidding cushion pad in membrane electrode fixture, but still employ screw and position, PEM exposure cannot be solved absorb water in atmosphere or be heated, the problem that location hole dimension offsets, plastic film mulch cannot be smooth caused.And in large-scale production, the dismounting workload of 12 screws is relatively big, the screw thread of fixture and repeated disassembled and assembled is easily worn and torn.
Number of patent application 201010557659.9, devises the hot-pressing fixture of membrane electrode, and this design must be coated with releasing agent, otherwise cannot the demoulding, but this can polluted membrane electrode.The carbon fiber slag and membrane electrode easily drops when hot pressing, each hot pressing is required for carefully clearing up groove, otherwise affects hot pressing flatness.This design positions merely with membrane electrode housing, does not accounts in the sandwich structure of membrane electrode, PEM, diffusion layer or anode and cathode general size can ratio frame material undersized, in this case this design be very difficult to location.It is only applicable to prepare on a small scale, cannot apply in production in enormous quantities.
Number of patent application 201310067915.X and application number 201110427036.4, respectively devise a kind of hot-pressing fixture, and this fixture presses by screw, it is only necessary to heating can complete hot pressing.But in order to ensure flatness, it is necessary to jig Design obtained the thickest, conducting heat highly difficult during heating, require the highest to the dynamics of the turn of the screw, Reusability screw rod or screw thread are easy to wear, it are only applicable to prepare on a small scale, cannot apply in production in enormous quantities.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of fuel cell membrane electrode and prepare fixture, improve the yield rate of membrane electrode product, saved fixture built-up time, workload.
In order to realize foregoing invention purpose, the present invention provides techniques below scheme: a kind of fuel cell membrane electrode prepares fixture, comprise fixtures for painting and hot-pressing fixture, described fixtures for painting is covered plate constituted by the first metal upper ledge, the first metal lower frame, the first binder clip, air-breathing chassis and spraying, described first metal upper ledge overlaps with described first metal lower frame, and described first binder clip is clamped in both edges；Described spraying is covered plate and is located at above described first metal upper ledge, and described air-breathing chassis is located at the lower section of described first metal lower frame；
Described hot-pressing fixture is made up of the second metal upper ledge, the second metal lower frame, the second binder clip, even number dummy block, two hot pressing location-plates, hot pressing upper cover plate, hot pressing lower cover and hot pressing limit chunk；Described second metal upper ledge overlaps with described second metal lower frame, and described second binder clip is clamped in both edges；Described hot pressing lower cover is located at above described second metal upper ledge through a described hot pressing location-plate, and described hot pressing upper cover plate is located at the lower section of described second metal lower frame through hot pressing location-plate another described；Described dummy block is located at described hot pressing location-plate surrounding；The periphery of the described hot pressing location-plate that described hot pressing limit chunk is positioned below.
Further, described first metal upper ledge and the consistency of thickness of described first metal lower frame, described second metal upper ledge and the consistency of thickness of described second metal lower frame, both correspondence positions are respectively provided with 8～16 grooves, this groove clamps for corresponding binder clip, and two handles of binder clip are smaller than both gross thickness.
Further, the length and width on described air-breathing chassis are less than the first metal upper ledge or the inside casing size of the first metal lower frame, and the thickness of thickness and the first metal upper ledge or the first metal lower frame is identical.
Further, plate is covered in described spraying is cross plate, rich font plate or groined type plate；
Further, described hot pressing upper cover plate or described hot pressing lower cover are made up of metal plate and six hexagon socket head cap screws, and this hexagon socket head cap screw is fixed on this metal plate.
Further, described hot pressing limit chunk is L shape plate.
Further, described hot pressing location-plate is cross flat board, rich font plate or groined type plate；One hot pressing location-plate is combined into a rectangle with the described dummy block of half quantity.
A kind of fuel cell membrane electrode described above prepares the packaging technology of fixture, including assembling process and the assembling process of hot-pressing fixture of fixtures for painting:
The assembling process of fixtures for painting described in 8.1 is:
1. the first metal lower frame and plastic film mulch chassis are combined as a flat board；
2. PEM is laid in above above-mentioned flat board；
3. cover the first metal upper ledge, clamp the first binder clip, form frame membrane module；
4. plastic film mulch chassis is fixed on the air-breathing chassis of spraying instrument；
5. spraying is covered in the frame that plate is positioned over the first metal upper ledge, form front fixtures for painting；
6. first spraying is complete, takes out spraying and covers plate, and by frame membrane module turn-over, the first metal upper ledge down, then combines with plastic film mulch chassis, places spraying and covers plate, forms reverse side fixtures for painting；
The assembling process of hot-pressing fixture described in 8.2:
1. hot pressing assemble backing plate be placed on hot pressing lower cover；
2. frame membrane module and hot pressing are assembled backing plate combination；
3. a hot pressing location-plate is placed in frame membrane module；
4. in this hot pressing location-plate, put into diffusion layer and the dummy block of half quantity, or electrode slice and the dummy block of half quantity；
5. covering hot pressing upper cover plate, clamping hot pressing lower cover and hot pressing upper cover plate, turn-over, hot pressing upper cover plate is down；
6. remove hot pressing lower cover, hot pressing assembles backing plate, installs another hot pressing location-plate；
7. thermotropism pressure location-plate put into the dummy block of diffusion layer and second half quantity, or the dummy block of electrode slice and second half quantity；
8. hot pressing limit chunk is laid；
9. cover hot pressing lower cover, i.e. form hot-pressing fixture.
Compared with prior art, the invention have the advantages that and present invention achieves front fixtures for painting, reverse side fixtures for painting and the combination of hot-pressing fixture, avoid membrane electrode to prepare in each technique because changing the repeated disassembled and assembled of the PEM that fixture is caused, and then avoid the fold of PEM in membrane electrode, position skew, pollute even breakage, improve the yield rate of membrane electrode product, save fixture built-up time, workload.
Accompanying drawing explanation
Fig. 1 is the overall detonation configuration schematic diagram of fixtures for painting of the present invention；
Fig. 2 is the overall detonation configuration schematic diagram of hot-pressing fixture of the present invention.
Detailed description of the invention
Describing the present invention below in conjunction with the accompanying drawings, the description of this part is only exemplary and explanatory, should not have any restriction effect to protection scope of the present invention.
A kind of fuel cell membrane electrode as illustrated in fig. 1 and 2 prepares fixture, comprises following assembly: 1,2～20 dummy blocks 8 of plate, hot pressing assembling 9,2 hot pressing location-plates 10 and 13 of backing plate, hot pressing upper cover plate 11,7,2～4 hot pressing limit 12,8～16 binder clips 3 of chunk of hot pressing lower cover are covered in metal upper ledge 2, metal lower frame 4, air-breathing chassis 5, plastic film mulch chassis 6, spraying；
Wherein, by metal upper ledge 2,4,8～16 binder clips 3 of metal lower frame, metal upper ledge 2 overlaps with metal lower frame 4, and binder clip 3 is clamped in both edges, constitutes general purpose module；
General purpose module is covered plate 1 combine with air-breathing chassis 5, plastic film mulch chassis 6, spraying: spraying is covered plate 1 and is located at above general purpose module, and air-breathing chassis 5 is located at below general purpose module, has been monolithically fabricated fixtures for painting；
General purpose module and 2～20 dummy blocks 8, hot pressing assembling 9,2 hot pressing location-plates 10 and 13 of backing plate, hot pressing upper cover plate 11, hot pressing lower cover 7, hot pressing limit chunks 12 combine: hot pressing lower cover 7 is located at above general purpose module through hot pressing location-plate 10, and hot pressing upper cover plate 11 is located at below general purpose module through another hot pressing location-plate 13；Dummy block 8 is located at the surrounding of hot pressing location-plate 10 and 13；Hot pressing limit chunk 12 is located at the periphery of hot pressing location-plate 13, has been monolithically fabricated hot-pressing fixture.
Wherein, metal upper ledge 2 and metal lower frame 3 consistency of thickness, the correspondence position of metal upper ledge 2 and metal lower frame 3 is respectively arranged with 8～16 grooves, groove clamps metal upper ledge 2 and metal lower frame 4 for binder clip 3, and after clamping, two handles of single binder clip 3 are smaller than metal upper ledge 2 and the gross thickness of metal lower frame 4；In the downside of metal upper ledge 2 and the upside of metal lower frame 4, all it is stained with one layer of smooth silicagel pad；Metal lower frame has 2 alignment pins, and wherein 1 alignment pin is used for location when assisting PEM to tile；Metal upper ledge has hole, 2 location, and 2 alignment pins of complexed metal lower frame use；
Wherein, the length and width on plastic film mulch chassis 6 are dimensioned slightly smaller than the inside casing size of metal upper ledge 2, metal lower frame 4, gauge and metal upper ledge 2 or the consistency of thickness of metal lower frame 4；
Air-breathing chassis 5, size is with plastic film mulch chassis 6, and limit, side four is airtight, and upper and lower surface and inside are porous breathable structure, porous metals (such as porous aluminium sheet, porous stainless steel plate, foamed aluminium, nickel foam etc.) or porous graphite material.
Plate is covered in spraying, specially cross or rich font or other grid, and middle part is with handles, and profile and throughput requirements according to membrane electrode are formulated.
Wherein, the number of assembling steps of fixtures for painting:
1, metal lower frame and plastic film mulch chassis are combined as a flat board
2, PEM is laid on above flat board, and 1 alignment pin and 3 corners by metal lower frame carry out auxiliary positioning；
3, cover metal upper ledge, clamping binder clip, form frame membrane module；
4, being combined on plastic film mulch chassis by above-mentioned frame membrane module, this plastic film mulch chassis is fixed on the heated getter chassis of spraying instrument always, and the length and width on plastic film mulch chassis are dimensioned slightly smaller than the consistency of thickness of the inside casing size of metal lower frame, gauge and metal lower frame；
5, spraying is covered in the frame that plate is positioned over metal upper ledge, form front fixtures for painting；
6, first spraying is complete, takes out spraying and covers plate, and by frame membrane module turn-over, metal upper ledge down, then combines with plastic film mulch chassis, places spraying and covers plate, forms reverse side fixtures for painting；
Wherein, the number of assembling steps of hot-pressing fixture:
1, hot pressing assembles backing plate to be placed on hot pressing lower cover；
2, frame membrane module and hot pressing are assembled backing plate combination；
3, hot pressing location-plate is placed in frame membrane module；
4, thermotropism pressure location-plate puts into diffusion layer or electrode slice, the dummy block of half quantity；
5, covering hot pressing upper cover plate, clamping hot pressing lower cover and hot pressing upper cover plate, turn-over, hot pressing upper cover plate is down；
6, remove hot pressing lower cover, hot pressing assembles backing plate, installs hot pressing location-plate；
7, thermotropism pressure location-plate 1 puts into diffusion layer or electrode slice, the dummy block of second half quantity；
8, hot pressing limit chunk is laid；
9, cover hot pressing lower cover, i.e. form hot-pressing fixture.
Present invention binder clip instead of bolt and clamps fixture, it also avoid the abrasion of screw thread, PEM locating bias, when assembling time-consuming difficultly, thus improve reusing the life-span, having saved fixture built-up time, workload of fixture.
The present invention assembles quickly, fixture each assembly profile is simply prone to processing, the Reusability life-span is high, product orientation precision is high, is suitable for extensive batch and prepares fuel cell membrane electrode.
Claims (8)
1. a fuel cell membrane electrode prepares fixture, comprise fixtures for painting and hot-pressing fixture, it is characterized in that: described fixtures for painting is covered plate constituted by the first metal upper ledge, the first metal lower frame, the first binder clip, air-breathing chassis and spraying, described first metal upper ledge overlaps with described first metal lower frame, and described first binder clip is clamped in both edges；Described spraying is covered plate and is located at above described first metal upper ledge, and described air-breathing chassis is located at the lower section of described first metal lower frame；
Described hot-pressing fixture is made up of the second metal upper ledge, the second metal lower frame, the second binder clip, even number dummy block, two hot pressing location-plates, hot pressing upper cover plate, hot pressing lower cover and hot pressing limit chunk；Described second metal upper ledge overlaps with described second metal lower frame, and described second binder clip is clamped in both edges；Described hot pressing lower cover is located at above described second metal upper ledge through a described hot pressing location-plate, and described hot pressing upper cover plate is located at the lower section of described second metal lower frame through hot pressing location-plate another described；Described dummy block is located at described hot pressing location-plate surrounding；The periphery of the described hot pressing location-plate that described hot pressing limit chunk is positioned below.
2. as described in claim 1, fuel cell membrane electrode prepares fixture, it is characterized in that: described first metal upper ledge and the consistency of thickness of described first metal lower frame, described second metal upper ledge and the consistency of thickness of described second metal lower frame, both correspondence positions are respectively provided with 8～16 grooves, this groove clamps for corresponding binder clip, and two handles of binder clip are smaller than both gross thickness.
3. as described in claim 2, fuel cell membrane electrode prepares fixture, it is characterised in that: the length and width on described air-breathing chassis are less than the first metal upper ledge or the inside casing size of the first metal lower frame, and the thickness of thickness and the first metal upper ledge or the first metal lower frame is identical.
4. as described in claim 1, fuel cell membrane electrode prepares fixture, it is characterised in that: it is cross plate, rich font plate or groined type plate that plate is covered in described spraying.
5. as described in claim 1, fuel cell membrane electrode prepares fixture, it is characterised in that: described hot pressing upper cover plate or described hot pressing lower cover are made up of metal plate and six hexagon socket head cap screws, and this hexagon socket head cap screw is fixed on this metal plate.
6. as described in claim 1, fuel cell membrane electrode prepares fixture, it is characterised in that: described hot pressing limit chunk is L shape plate.
7. as described in claim 1, fuel cell membrane electrode prepares fixture, it is characterised in that: described hot pressing location-plate is cross flat board, rich font plate or groined type plate；The described dummy block of one described hot pressing location-plate and half quantity is combined into a rectangle.
8. fuel cell membrane electrode as claimed in claim 1 prepares a packaging technology for fixture, including assembling process and the assembling process of hot-pressing fixture of fixtures for painting:
The assembling process of fixtures for painting described in 8.1 is:
1. the first metal lower frame and plastic film mulch chassis are combined as a flat board；
2. PEM is laid in above above-mentioned flat board；
3. cover the first metal upper ledge, clamp the first binder clip, form frame membrane module；
4. plastic film mulch chassis is fixed on the air-breathing chassis of spraying instrument；
5. spraying is covered in the frame that plate is positioned over the first metal upper ledge, form front fixtures for painting；
6. first spraying is complete, takes out spraying and covers plate, and by frame membrane module turn-over, the first metal upper ledge down, then combines with plastic film mulch chassis, places spraying and covers plate, forms reverse side fixtures for painting；
The assembling process of hot-pressing fixture described in 8.2:
1. hot pressing assemble backing plate be placed on hot pressing lower cover；
2. frame membrane module and hot pressing are assembled backing plate combination；
3. a hot pressing location-plate is placed in frame membrane module；
4. in this hot pressing location-plate, put into diffusion layer and the dummy block of half quantity, or electrode slice and the dummy block of half quantity；
5. covering hot pressing upper cover plate, clamping hot pressing lower cover and hot pressing upper cover plate, turn-over, hot pressing upper cover plate is down；
6. remove hot pressing lower cover, hot pressing assembles backing plate, installs another hot pressing location-plate；
7. thermotropism pressure location-plate put into the dummy block of diffusion layer and second half quantity, or the dummy block of electrode slice and second half quantity；
8. hot pressing limit chunk is laid；
9. cover hot pressing lower cover, i.e. form hot-pressing fixture.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024434.5A CN103811770B (en) | 2014-01-20 | 2014-01-20 | Fuel cell membrane electrode prepares fixture and processing technique thereof |
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|---|---|---|---|
| CN201410024434.5A CN103811770B (en) | 2014-01-20 | 2014-01-20 | Fuel cell membrane electrode prepares fixture and processing technique thereof |
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| CN103811770A CN103811770A (en) | 2014-05-21 |
| CN103811770B true CN103811770B (en) | 2016-08-17 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300159B (en) * | 2014-09-29 | 2017-01-25 | 昆山桑莱特新能源科技有限公司 | Spraying preparation jig for fuel-cell catalyst coatings |
| CN211150516U (en) * | 2016-12-19 | 2020-07-31 | P2I有限公司 | Device and clamping frame for fastening one or more objects in a surface modification process |
| JP6950557B2 (en) * | 2018-02-15 | 2021-10-13 | トヨタ自動車株式会社 | How to make a fuel cell stack |
| CN109390610B (en) * | 2018-10-15 | 2021-05-25 | 南京大学昆山创新研究院 | Fuel cell membrane electrode production and packaging process |
| CN109755595B (en) * | 2018-12-26 | 2021-05-07 | 武汉喜玛拉雅光电科技股份有限公司 | Spraying method of fuel cell membrane electrode |
| CN110834283A (en) * | 2019-11-20 | 2020-02-25 | 浙江锋源氢能科技有限公司 | Five-in-one membrane electrode packaging clamp and proton exchange membrane fuel cell |
| CN112701313B (en) * | 2020-12-30 | 2022-01-28 | 张家口市氢能科技有限公司 | Combined device and method for preparing fuel cell membrane electrode |
| CN115318486B (en) * | 2022-08-09 | 2023-12-29 | 新源动力股份有限公司 | Portable low-damage constant-pressure constant-temperature plane spraying device |
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| CN101183717A (en) * | 2007-11-27 | 2008-05-21 | 江苏雷石新能源科技有限公司 | Pressing mold device for hot pressure prepared fuel cell membrane electrode |
| CN202930477U (en) * | 2012-10-31 | 2013-05-08 | 新源动力股份有限公司 | Fixture with anti-sliding buffering cushion for preparing proton exchange membranes or membrane electrodes |
| CN203674317U (en) * | 2014-01-20 | 2014-06-25 | 南京大学昆山创新研究院 | Fuel cell membrane electrode preparation clamp |
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| JP4529439B2 (en) * | 2003-12-26 | 2010-08-25 | トヨタ自動車株式会社 | Fuel cell manufacturing method and manufacturing apparatus |
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| CN101183717A (en) * | 2007-11-27 | 2008-05-21 | 江苏雷石新能源科技有限公司 | Pressing mold device for hot pressure prepared fuel cell membrane electrode |
| CN202930477U (en) * | 2012-10-31 | 2013-05-08 | 新源动力股份有限公司 | Fixture with anti-sliding buffering cushion for preparing proton exchange membranes or membrane electrodes |
| CN203674317U (en) * | 2014-01-20 | 2014-06-25 | 南京大学昆山创新研究院 | Fuel cell membrane electrode preparation clamp |
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Effective date of registration: 20170418 Address after: 210093 Nanjing, Gulou District, Jiangsu, No. 22 Hankou Road Co-patentee after: Kunshan Innovation Research Institute of Nanjing University Patentee after: Nanjing University Co-patentee after: Kunshan Sunlaite New Energy Co., Ltd. Address before: 1, Suzhou, Kunshan City, South Road, reed, Tsinghua Science and Technology Park, No., building, building, floor, building, No. 215347, No. 1666 Patentee before: Kunshan Innovation Research Institute of Nanjing University |
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