CN110416557A - A kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer - Google Patents
A kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer Download PDFInfo
- Publication number
- CN110416557A CN110416557A CN201910628636.3A CN201910628636A CN110416557A CN 110416557 A CN110416557 A CN 110416557A CN 201910628636 A CN201910628636 A CN 201910628636A CN 110416557 A CN110416557 A CN 110416557A
- Authority
- CN
- China
- Prior art keywords
- roll
- gas diffusion
- diffusion layer
- fuel battery
- basement membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009792 diffusion process Methods 0.000 title claims abstract description 74
- 239000000446 fuel Substances 0.000 title claims abstract description 56
- 238000007639 printing Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 40
- 210000002469 basement membrane Anatomy 0.000 claims abstract description 54
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 42
- 239000004917 carbon fiber Substances 0.000 claims abstract description 42
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 42
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 29
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 29
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 24
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 24
- 238000007650 screen-printing Methods 0.000 claims abstract description 22
- 150000001412 amines Chemical class 0.000 claims abstract description 14
- 229920001709 polysilazane Polymers 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 78
- 239000007788 liquid Substances 0.000 claims description 25
- 230000001681 protective effect Effects 0.000 claims description 23
- 238000001035 drying Methods 0.000 claims description 21
- 239000012298 atmosphere Substances 0.000 claims description 20
- 239000004034 viscosity adjusting agent Substances 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 229910003460 diamond Inorganic materials 0.000 claims description 14
- 239000010432 diamond Substances 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 9
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 9
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 claims description 8
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000000839 emulsion Substances 0.000 claims description 7
- 229910021485 fumed silica Inorganic materials 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 7
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 7
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- NJBCRXCAPCODGX-UHFFFAOYSA-N 2-methyl-n-(2-methylpropyl)propan-1-amine Chemical compound CC(C)CNCC(C)C NJBCRXCAPCODGX-UHFFFAOYSA-N 0.000 claims description 4
- KDSNLYIMUZNERS-UHFFFAOYSA-N 2-methylpropanamine Chemical compound CC(C)CN KDSNLYIMUZNERS-UHFFFAOYSA-N 0.000 claims description 4
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 4
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 claims description 4
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 claims description 4
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 4
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 4
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 4
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 4
- 229910021382 natural graphite Inorganic materials 0.000 claims description 4
- DPBLXKKOBLCELK-UHFFFAOYSA-N pentan-1-amine Chemical compound CCCCCN DPBLXKKOBLCELK-UHFFFAOYSA-N 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- BMVXCPBXGZKUPN-UHFFFAOYSA-N 1-hexanamine Chemical compound CCCCCCN BMVXCPBXGZKUPN-UHFFFAOYSA-N 0.000 claims description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 claims description 2
- 229940043279 diisopropylamine Drugs 0.000 claims description 2
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 claims description 2
- OOHAUGDGCWURIT-UHFFFAOYSA-N n,n-dipentylpentan-1-amine Chemical compound CCCCCN(CCCCC)CCCCC OOHAUGDGCWURIT-UHFFFAOYSA-N 0.000 claims description 2
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 claims description 2
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 14
- 210000004379 membrane Anatomy 0.000 abstract description 11
- 239000012528 membrane Substances 0.000 abstract description 11
- 238000000576 coating method Methods 0.000 abstract description 10
- 239000011248 coating agent Substances 0.000 abstract description 9
- 238000002360 preparation method Methods 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 8
- 239000000835 fiber Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 8
- 239000002002 slurry Substances 0.000 abstract description 6
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 34
- 230000002209 hydrophobic effect Effects 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000000523 sample Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 206010013786 Dry skin Diseases 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 150000004982 aromatic amines Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910000062 azane Inorganic materials 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000013305 flexible fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000006101 laboratory sample Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229910021420 polycrystalline silicon Chemical class 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003075 superhydrophobic effect Effects 0.000 description 1
- YBRBMKDOPFTVDT-UHFFFAOYSA-N tert-butylamine Chemical compound CC(C)(C)N YBRBMKDOPFTVDT-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
- H01M4/8807—Gas diffusion layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0234—Carbonaceous material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0239—Organic resins; Organic polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0241—Composites
- H01M8/0245—Composites in the form of layered or coated products
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Composite Materials (AREA)
- Inert Electrodes (AREA)
- Fuel Cell (AREA)
Abstract
The invention belongs to the technical fields that fuel cell prepares gas diffusion layers, and in particular to a kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer.The present invention passes through using polytetrafluoroethylene (PTFE) non-woven fabrics as basement membrane, by in the roll-to-roll printing ink of basement membrane two sides silk screen, ink therein is different from traditional carbon dust, but chopped carbon fiber is used, polysilazane is assisted, through macropore silk-screen printing, chopped carbon fiber is set not only to be uniformly dispersed, and polysilazane good bond chopped carbon fiber after amine ambient cure, it is formed and basement membrane is attached to fiber mesh, overcome blockage of the micro orifice caused by directly coating, infiltration toner slurry.Further, gas diffusion layers are prepared using roll-to-roll printing, can coiled continuous printing, cost is greatly reduced, and is suitable for large-scale production, and the proton exchange membrane matching that coiled gas diffusion layers are easy to coiled prepares membrane electrode.Entire preparation method has serialization, stabilisation, low energy consumption, the feature of low material consumption.
Description
Technical field
The invention belongs to the technical fields that fuel cell prepares gas diffusion layers, and in particular to a kind of roll-to-roll printing it is low at
This prepares the method for fuel battery gas diffusion layer.
Background technique
Proton Exchange Membrane Fuel Cells (proton exchange membrane fuel cell) is a kind of fuel cell,
It is equivalent to " inverse " device of water electrolysis in principle.As next-generation battery technology, fuel cell possesses energy density and energy storage
The big advantage of time two, while fuel cell only generates water in use, will not generate other any pollutions, therefore fuel electricity
Pond is optimal energy storage device, is the following ultimate battery solution.
Proton Exchange Membrane Fuel Cells is mainly made of membrane electrode, bipolar plates and shell, wherein membrane electrode is handed over by proton again
It changes film, catalyst and gas diffusion layers is three-in-one forms.Fuel battery gas diffusion layer is usually made of basal layer and microporous layers,
Basal layer is about 100- usually using porous carbon fiber paper, carbon-fiber cloth, carbon fiber non-woven material and carbon black paper, thickness
400 μm, it is desirable that there is good gas permeability, gap is larger；Primarily serve the effect of the Catalytic Layer of support microporous layers；Microporous layers master
If the carbon dust that a layer thickness for improving basal layer pore structure is about 10-100 μm, it is therefore an objective to reduce Catalytic Layer and basal layer it
Between contact resistance, catalyst loss is prevented, so that runner gas and generating that water is uniformly distributed more to be distributed.
The special application number 201810493251.6 of Chinese invention discloses a kind of super-hydrophobic gas expansion of fuel cell durability
Dissipate layer, include conductive porous substrate and microporous layers, conductive porous substrate be carbon fiber paper by hydrophobic treatment, carbon fiber without
One of woven fabric, carbon felt, foamable metal sheet, metal mesh；The microporous layers contain hydrophobic microballoon.The hydrophobic treatment is
Conventional processing method, such as by conductive porous substrate by impregnating fluororesin, then firing is handled.The microporous layers are will to lead
Electrocoating paint is coated on conductive porous substrate surface by blade coating, and further firing processing is formed；Conductive coating is by conductive agent, hydrophobic
Microballoon and bonding agent composition, wherein hydrophobic microballoon is the glass microsphere or polytetrafluoroethylene (PTFE) microballoon of high sphericity.The present invention passes through
Hydrophobic microballoon is added in conductive coating, hydrophobicity can be improved, improve the durability of fuel battery gas diffusion layer.
Chinese invention patent application number 201310504496.1 discloses a kind of carbon paper and preparation method thereof, more specifically
It says, the present invention relates to a kind of special high-performance carbon paper and preparation method thereof, the carbon paper is to be chopped
Carbon fiber, plant fiber, heat-bondable fibre and carbon black are raw material, and wet papermaking process copy paper is used after being discongested, being beaten and is with slurry,
Then it is made through water-repellent paint coating process, the proportion of each raw material is as follows in parts by weight: 65 ~ 75 parts of chopped carbon fiber,
10 ~ 15 parts of plant fiber, 10 ~ 15 parts and 0 ~ 10 part of carbon black of heat-bondable fibre.The invention uses wet-formed, hot pressing, coating
The features such as production technology combined, simple, the easily controllable product quality with process flow, production process is environmentally friendly, and institute
Production can accurate each raw material material ratio, be conducive to control product quality；The disadvantage is that electric conductivity poor (50m Ω cm), strong
Spend it is poor, hydrophobicity is poor, if directly be coated with hydrophobic layer be easy it is blocking microporous.
Chinese invention patent application number 201810835192.6 discloses a kind of fuel battery gas diffusion layer and its preparation
Method, gas diffusion layers include the conductive mesh structure for serving as carrier and the painting coated in the conductive mesh structure one or both sides
Layer, coating include carbon dust and binder, and coating is to make by the following method with feature holes porosity and hydrophobic porous structure
It is standby to obtain, carbon powder particle is distributed in water, slurries dispersion is carried out by homogenizer, adds binder, carries out mechanical stirring,
Slurry mixture is adjusted to appropriate viscosity；Slurry mixture is applied to conductive mesh body structure surface；Sample is heat-treated
To remove additive, the uniform adhesive mixture of carbon and binder is formed, product is obtained.Compared with prior art, of the invention
Gas diffusion layers have good pore structure and hydrophobic property, grasp in hydrogen/oxygen or hydrogen/air or other fuel cells
When making, there are superior performance and water management capabilities；But the carbon dust bonding of this method preparation is insecure, is easy to cause conductive mesh
Shape structure blockage of the micro orifice.
Since gas diffusion layers play support Catalytic Layer, collected current, conduction gas and discharge water etc. in a fuel cell
Multiple action realizes the reallocation of reaction gas and product water between flow field and Catalytic Layer, is the pass for influencing electrode performance
Key material.Generally require gas diffusion layers that there is good electric conductivity, hydrophobicity, gas permeability, mechanical strength.Currently, fuel is electric
The gas diffusion layers in pond mainly use carbon paper as base, using by carbon fiber, polymer fiber, adhesive it is compound after, preparation
At paper, further handle to obtain carbon fiber paper in 1600 DEG C of high temperature cabonizations.The disadvantage is that embrittlement, flexibility is poor, large-scale degree is low, raw
Production capacity consumption is high, cost is high.And due to not having flexibility, later period application of resin is needed to handle, so that microporosity is affected.
Summary of the invention
Existing fuel battery gas diffusion layer embrittlement, it is at high cost, it is difficult to which that coiled preparation uses, and coated with hydrophobic layer increases soft tree
Rouge is easy blocking microporous defect, and the present invention proposes that a kind of roll-to-roll printing low cost prepares the side of fuel battery gas diffusion layer
Method.
A kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer, comprising the following steps:
(1), it prepares modified basement membrane: conductive carbon powder is dispersed in acrylic emulsion and is obtained according to 1~3kg:5 of solid-to-liquid ratio~10L
Conduction liquid, it is dry after basement membrane is infiltrated the 24~36h of conduction liquid, it batches in rolls, obtains modified basement membrane；The basement membrane is hole
50~200 μm of diameter of polytetrafluoroethylene (PTFE) non-woven fabrics;
(2), it will print that ink is roll-to-roll to be printed on modified basement membrane, handle 30~90min in amine atmosphere, pressing is protected after drying
Cuticula batches；The printing ink is mixed with polysilazane, viscosity modifier according to weight ratio 5:90:5 by chopped carbon fiber
It is obtained by 3~5h of ultrasonic disperse;
(3), repeat step (2), will print on the roll-to-roll another side for being printed on modified basement membrane of ink, amine atmosphere handle 30~
90min presses protective film after drying, batches, and obtains fuel battery gas diffusion layer.
Above-mentioned one kind is roll-to-roll to print the inexpensive method for preparing fuel battery gas diffusion layer, wherein institute in step (1)
Stating conductive carbon powder is graphene, natural graphite, globular graphite at least one of of the partial size less than 10 μm.
The gas diffusion layers of fuel cell not only play a part of supporting catalyst layer in the electrodes, stablize electrode structure,
It is also equipped with and provides the multiple functions of gas passage, electron channel and drainage channel for electrode reaction.Therefore gas diffusion can be used as
The material of layer must satisfy: 1. uniform porous structures, permeability are good；2. resistivity is low, electronic conduction ability is strong；3. knot
Structure is close and surfacing, reduction contact resistance improve electric conductivity；4. have certain mechanical strength, rigidity appropriate with
Flexibility provides the stability of long period of operation condition lower electrode arrangement conducive to the production of electrode；5. hydrophilic/hydrophobic balance appropriate,
It prevents excessive moisture block pores and Gas permeability is caused to decline；6. having chemical stability and thermal stability；7. system
Make at low cost, performance/price is than high.
In order to overcome carbon fiber paper to lack flexible and carbon fiber woven cloth shortage dimensional stability weakness, gas diffusion layers
Substrate non-woven fabrics can be selected, have certain mechanical strength, and have the advantages that high flexibility and dimensional stability, thus sharp
In the production of electrode.Suitable material includes the non-woven fabrics of carbon fiber, glass fibre or the fiber production containing organic polymer,
These organic polymers can be polypropylene, polyester (polyethylene terephthalate), polyphenylene sulphur, polytetrafluoroethylene (PTFE) or
Polyether-ketone etc..One kind of the present invention is roll-to-roll to print the inexpensive method for preparing fuel battery gas diffusion layer, wherein step
(1) basement membrane described in is non-woven fabrics, and the non-woven fabrics is preferably the polytetrafluoroethylene (PTFE) non-woven fabrics that aperture is 50~200 μm.
Above-mentioned one kind is roll-to-roll to print the inexpensive method for preparing fuel battery gas diffusion layer, wherein institute in step (1)
It states dry for using 100 DEG C of heat-flash nitrogen streams progress 1~3h dryings.The purpose of thermal current drying is to maintain micropore and is not blocked.
Above-mentioned one kind is roll-to-roll to print the inexpensive method for preparing fuel battery gas diffusion layer, wherein institute in step (2)
Stating printing ink is after being mixed with polysilazane, viscosity modifier according to weight ratio 5:90:5 by chopped carbon fiber through ultrasound point
3~5h is dissipated to obtain.
The method that the above-mentioned roll-to-roll printing low cost of one kind prepares fuel battery gas diffusion layer, wherein the chopped carbon fiber
The length of dimension is less than 0.2mm.
In the present invention, by off-set oil ink print on modified basement membrane, in one timing of steam atmosphere processing of amine compounds
Between, the steam of these amine can make polysilazane rapid curing on basement membrane form the silicon thin film with adhesive effect.In addition,
The present invention why select aminated compounds steam be in order to prevent liquid or solid aminated compounds on modified basement membrane
Not dry printing ink generates destruction, and then influences the performance of fuel battery gas diffusion layer；And selection will print ink
The steam that amine compounds are reused after being printed on modified basement membrane is solidified, because if in advance by aminated compounds and poly- silicon
The contact such as azane will lead to its premature cure, and then preferably cannot form silicon thin film on modified basement membrane.Therefore, of the invention
The amine atmosphere is the gaseous atmosphere of aminated compounds；The aminated compounds theoretically can be used it is any can it is gaseous, will not
The combination of one of any aminated compounds being had an impact when to polysilazane film forming or a few persons, such as preferably using fat
Perhaps heterocyclic amine aliphatic amine or aromatic amine can be any in primary amine, secondary amine or tertiary amine for race's amine, aromatic amine
Person.The preferably described aminated compounds of the present invention is methylamine, dimethylamine, ethamine, diethylamine, dipropylamine, diisopropylamine, 3 third
Amine, butylamine, dibutylamine, tri-n-butylamine, isobutylamine, diisobutyl amine, tert-butylamine, amylamine, in triamylamine hexyl amine
It is at least one.And gaseous state amine atmosphere can choose and liquid or solid-state amine compounds are heated to certain temperature evaporate to obtain.
The method that the above-mentioned roll-to-roll printing low cost of one kind prepares fuel battery gas diffusion layer, wherein the viscosity-adjusting agent
Agent is hydroxypropyl methyl cellulose, Sodium Polyacrylate, fumed silica according to the mixing of 1~10:5 of weight ratio~10:1~5
Object.By adjusting suitable viscosity, while guaranteeing silk-screen, prevent printing ink from extending influence the gap of printing layer.
The method that the above-mentioned roll-to-roll printing low cost of one kind prepares fuel battery gas diffusion layer, wherein the printing uses
Roll-to-roll screen process press carries out silk-screen printing.By big diamond-shaped meshes screen printing, chopped carbon fiber is uniformly printed on base
Film, and the big mesh in silk-screen hole ensure that good porosity after printing.
The method that the above-mentioned roll-to-roll printing low cost of one kind prepares fuel battery gas diffusion layer, wherein the silk-screen printing
Silk screen Kong Wei great diamond hole, diamond hole 0.2~0.5mm of diagonal line length, silk-screen scraper pressure be 0.5~0.8MPa, number to be printed
Control is in 50~100g/m2。
Polyvinyl alcohol film (abbreviation PVA), water imbibition is big, and being immersed in the water can dissolve.The roll-to-roll printing of above-mentioned one kind it is low at
This prepares the method for fuel battery gas diffusion layer, wherein the protective film is hydrophilic polyvinyl alcohol film；The protection
Film is contaminated for protective gas diffusion layer, removes protective film in gas diffusion layers use.
Traditional gas diffusion layers are the carbon fiber paper of high temperature sintering, embrittlement frangibility, can only monolithic use and Catalytic Layer,
Proton exchange membrane is compound, directly affects large-scale production use, and cost is high.In addition hydrophobic place is being made to carbon fiber paper
When reason, the hydrophobic layer of coating is easily blocking microporous, influences gas diffusion performance.
The method that a kind of roll-to-roll printing low cost of the invention prepares fuel battery gas diffusion layer, by with polytetrafluoroethyl-ne
Alkene non-woven fabrics is basement membrane, by the way that in the roll-to-roll printing ink of basement membrane two sides silk screen, ink therein is different from traditional carbon dust, and
It is to assist polysilazane so that chopped carbon fiber is not only uniformly dispersed through macropore silk-screen printing, Er Qieju using chopped carbon fiber
Silazane good bond chopped carbon fiber after amine ambient cure forms and is attached to basement membrane with fiber mesh, overcomes direct painting
Blockage of the micro orifice caused by cloth, infiltration toner slurry.Further, gas diffusion layers are prepared using roll-to-roll printing, can connected in rolls
Continuous printing, cost is greatly reduced, and is suitable for large-scale production, and coiled gas diffusion layers are easy to coiled proton exchange membrane
Matching prepares membrane electrode.Entire preparation method has serialization, stabilisation, low energy consumption, the feature of low material consumption.
Specific embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
A kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer, comprising the following steps:
(1), it prepares modified basement membrane: conductive carbon powder being dispersed in acrylic emulsion according to solid-to-liquid ratio 2kg:7L and obtains conduction liquid,
It is dry after basement membrane is infiltrated the conduction liquid 30h, it batches in rolls, obtains modified basement membrane；The conductive carbon powder is partial size less than 10
μm graphene；The basement membrane is non-woven fabrics, and the non-woven fabrics is the polytetrafluoroethylene (PTFE) non-woven fabrics that aperture is 150 μm；It is described dry
Dry is to carry out 2h dryings using 100 DEG C of heat-flash nitrogen streams；
(2), by off-set oil ink print on modified basement membrane, 60min is handled in the steam atmosphere of methylamine, pressing protection after drying
Film batches；The printing ink is after being mixed with polysilazane, viscosity modifier according to weight ratio 5:90:5 by chopped carbon fiber
It is obtained through ultrasonic disperse 4h；The length of the chopped carbon fiber is less than 0.2mm；The viscosity modifier is hydroxypropyl methyl fiber
Element, Sodium Polyacrylate, fumed silica according to weight ratio 5:7:4 mixture；The printing uses roll-to-roll silk-screen printing
Machine carries out silk-screen printing；The silk screen Kong Wei great diamond hole of the silk-screen printing, diamond hole diagonal line length 0.4mm, silk-screen scraper pressure
Power is 0.7MPa, and number to be printed is controlled in 80g/m2, the protective film is hydrophilic polyvinyl alcohol film；The protective film is in gas
Body diffused layer using when be removed；
(3), step (2) are repeated, will printed on the roll-to-roll another side for being printed on modified basement membrane of ink, in the steam atmosphere of methylamine
60min is handled, presses protective film after drying, continuous coiling obtains fuel battery gas diffusion layer.
Sample of the present invention uses carbon fiber mass concentration for 5% ink, and number to be printed control is 80 g/m2, test
The porosity and hydrophobic effect of gas diffusion layers, such as table 1.
Embodiment 2
A kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer, comprising the following steps:
(1), it prepares modified basement membrane: conductive carbon powder being dispersed in acrylic emulsion according to solid-to-liquid ratio 1kg:5L and obtains conduction liquid,
It is dry after basement membrane is infiltrated the conduction liquid 32h, it batches in rolls, obtains modified basement membrane；The conductive carbon powder is partial size less than 10
μm natural graphite；The basement membrane is non-woven fabrics, and the non-woven fabrics is the polytetrafluoroethylene (PTFE) non-woven fabrics that aperture is 120 μm；It is described
Dry is to carry out 1h dryings using 100 DEG C of heat-flash nitrogen streams；
(2), by off-set oil ink print on modified basement membrane, 90min is handled in the steam atmosphere of diethylamine, pressing is protected after drying
Cuticula batches；The printing ink is mixed with polysilazane, viscosity modifier according to weight ratio 5:90:5 by chopped carbon fiber
It is obtained after conjunction through ultrasonic disperse 3h；The length of the chopped carbon fiber is less than 0.2mm；The viscosity modifier is hydroxypropyl methyl
Cellulose, Sodium Polyacrylate, fumed silica according to weight ratio 2:5:3 mixture；The printing uses roll-to-roll silk screen
Printing machine carries out silk-screen printing；The silk screen Kong Wei great diamond hole of the silk-screen printing, diamond hole diagonal line length 0.4mm, silk-screen are scraped
Knife pressure is 0.7MPa, and number to be printed is controlled in 80g/m2；The protective film is hydrophilic polyvinyl alcohol film；The protective film
Gas diffusion layers using when be removed；
(3), step (2) are repeated, will printed on the roll-to-roll another side for being printed on modified basement membrane of ink, in the steam atmosphere of diethylamine
Processing 90min is enclosed, presses protective film after drying, continuous coiling obtains fuel battery gas diffusion layer.
Sample of the present invention uses carbon fiber mass concentration for 5% ink, and number to be printed control is 80 g/m2, test
The porosity and hydrophobic effect of gas diffusion layers, such as table 1.
Embodiment 3
A kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer, comprising the following steps:
(1), it prepares modified basement membrane: conductive carbon powder being dispersed in acrylic emulsion according to solid-to-liquid ratio 3kg:8L and obtains conduction liquid,
It is dry after basement membrane is infiltrated the conduction liquid 35h, it batches in rolls, obtains modified basement membrane；The conductive carbon powder is partial size less than 10
μm globular graphite；The basement membrane is non-woven fabrics, and the non-woven fabrics is the polytetrafluoroethylene (PTFE) non-woven fabrics that aperture is 180 μm；It is described
Dry is to carry out 1h dryings using 100 DEG C of heat-flash nitrogen streams；
(2), by off-set oil ink print on modified basement membrane, 50min is handled in the steam atmosphere of diisobutyl amine, is pressed after drying
Protective film is closed, is batched；The printing ink is by chopped carbon fiber and polysilazane, viscosity modifier according to weight ratio 5:90:5
It is obtained after mixing through ultrasonic disperse 4h；The length of the chopped carbon fiber is less than 0.2mm；The viscosity modifier is hydroxypropyl first
Base cellulose, Sodium Polyacrylate, fumed silica according to weight ratio 8:9:3 mixture；The printing uses roll-to-roll silk
Net printing machine carries out silk-screen printing；The silk screen Kong Wei great diamond hole of the silk-screen printing, diamond hole diagonal line length 0.3mm, silk-screen
Scraper pressure is 0.6MPa, and number to be printed is controlled in 90g/m2；The protective film is hydrophilic polyvinyl alcohol film；The protection
Film gas diffusion layers using when be removed；
(3), step (2) are repeated, will printed on the roll-to-roll another side for being printed on modified basement membrane of ink, in the steaming of diisobutyl amine
Vapour atmosphere handles 50min, presses protective film after drying, continuous coiling obtains fuel battery gas diffusion layer.
Sample of the present invention uses carbon fiber mass concentration for 5% ink, and number to be printed control is 90 g/m2, test
The porosity and hydrophobic effect of gas diffusion layers, such as table 1.
Embodiment 4
A kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer, comprising the following steps:
(1), it prepares modified basement membrane: conductive carbon powder being dispersed in acrylic emulsion according to solid-to-liquid ratio 3kg:9L and obtains conduction liquid,
It is dry after basement membrane is infiltrated the conduction liquid 32h, it batches in rolls, obtains modified basement membrane；The conductive carbon powder is partial size less than 10
μm natural graphite；The basement membrane is non-woven fabrics, and the non-woven fabrics is the polytetrafluoroethylene (PTFE) non-woven fabrics that aperture is 80 μm；It is described dry
Dry is to carry out 3h dryings using 100 DEG C of heat-flash nitrogen streams；
(2), by off-set oil ink print on modified basement membrane, 45min is handled in the steam atmosphere of amylamine, pressing protection after drying
Film batches；The printing ink is after being mixed with polysilazane, viscosity modifier according to weight ratio 5:90:5 by chopped carbon fiber
It is obtained through ultrasonic disperse 4h；The length of the chopped carbon fiber is less than 0.2mm；The viscosity modifier is hydroxypropyl methyl fiber
Element, Sodium Polyacrylate, fumed silica according to weight ratio 7:7:4 mixture；The printing uses roll-to-roll silk-screen printing
Machine carries out silk-screen printing；The silk screen Kong Wei great diamond hole of the silk-screen printing, diamond hole diagonal line length 0.3mm, silk-screen scraper pressure
Power is 0.6MPa, and number to be printed is controlled in 90g/m2；The protective film is hydrophilic polyvinyl alcohol film；The protective film is in gas
Body diffused layer using when be removed；
(3), step (2) are repeated, will printed on the roll-to-roll another side for being printed on modified basement membrane of ink, in the steam atmosphere of amylamine
45min is handled, presses protective film after drying, continuous coiling obtains fuel battery gas diffusion layer.
Sample of the present invention uses carbon fiber mass concentration for 5% ink, and number to be printed control is 90 g/m2, test
The porosity and hydrophobic effect of gas diffusion layers, such as table 1.
Embodiment 5
A kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer, comprising the following steps:
(1), it prepares modified basement membrane: conductive carbon powder being dispersed in acrylic emulsion according to solid-to-liquid ratio 2kg:9L and obtains conduction liquid,
It is dry after basement membrane is infiltrated the conduction liquid 36h, it batches in rolls, obtains modified basement membrane；The conductive carbon powder is partial size less than 10
μm graphene；The basement membrane is non-woven fabrics, and the non-woven fabrics is the polytetrafluoroethylene (PTFE) non-woven fabrics that aperture is 200 μm；It is described dry
Dry is to carry out 3h dryings using 100 DEG C of heat-flash nitrogen streams；
(2), by off-set oil ink print on modified basement membrane, 30min is handled in the steam atmosphere of dibutylamine, is pressed after drying
Protective film batches；The printing ink is mixed with polysilazane, viscosity modifier according to weight ratio 5:90:5 by chopped carbon fiber
It is obtained after conjunction through ultrasonic disperse 5h；The length of the chopped carbon fiber is less than 0.2mm；The viscosity modifier is hydroxypropyl methyl
Cellulose, Sodium Polyacrylate, fumed silica according to weight ratio 6:9:2 mixture；The printing uses roll-to-roll silk screen
Printing machine carries out silk-screen printing；The silk screen Kong Wei great diamond hole of the silk-screen printing, diamond hole diagonal line length 0.2mm, silk-screen are scraped
Knife pressure is 0.5MPa, and number to be printed is controlled in 60g/m2；The protective film is hydrophilic polyvinyl alcohol film；The protective film
Gas diffusion layers using when be removed；
(3), step (2) are repeated, will printed on the roll-to-roll another side for being printed on modified basement membrane of ink, in the steam of dibutylamine
Atmosphere handles 30min, presses protective film after drying, continuous coiling obtains fuel battery gas diffusion layer.
Sample of the present invention uses carbon fiber mass concentration for 5% ink, and number to be printed control is 60 g/m2, test
The porosity and hydrophobic effect of gas diffusion layers, such as table 1.
Comparative example 1
Comparative example 1 uses the carbon fiber paper of commercially available porosity 85% for substrate, and then carbon dust is dispersed in polytetrafluoroethylene liquid,
The ink that carbon dust mass concentration is 5% is obtained, monolithic silk-screen printing is carried out；It tests the porosity of obtained gas diffusion layers and dredges
Water effect；Such as table 1.
Porosity: using the porosity of mercury injection method measuring and calculation laboratory sample.
Hydrophobic performance test: under the conditions of 25 DEG C of room temperature, humidity are 35%, test experiments sample is carried out using stockless water droplet method
The hydrophobicity of product measures the contact angle of sample using water contact angle measuring instrument.
Table 1
| Performance indicator | Porosity (%) | Hydrophobicity (contact angle) |
| Embodiment 1 | 79.3 | 132 |
| Embodiment 2 | 76.7 | 130 |
| Embodiment 3 | 78.5 | 131 |
| Embodiment 4 | 79.2 | 128 |
| Embodiment 5 | 79.0 | 133 |
| Comparative example 1 | 61.5 | 137 |
By detection, gas diffusion layers of the present invention maintain preferable micropore, and porosity is higher, and traditional comparative example then due to
Carbon dust and polytetrafluoroethylene (PTFE) cause the blocking of micropore；The present invention is still maintained without using polytetrafluoroethylene (PTFE) coating liquid simultaneously
The hydrophobicity applied close to polytetrafluoroethylene (PTFE)；And the present invention prepares gas diffusion layers using roll-to-roll printing, and it can be coiled
Continuous printing, cost are greatly reduced, and are suitable for large-scale production, and coiled gas diffusion layers are easy to coiled proton exchange
Film matching prepares membrane electrode.Entire preparation method has serialization, stabilisation, low energy consumption, the feature of low material consumption.
Claims (9)
1. a kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer, which is characterized in that including following step
It is rapid:
(1), it prepares modified basement membrane: conductive carbon powder is dispersed in acrylic emulsion and is obtained according to 1~3kg:5 of solid-to-liquid ratio~10L
Conduction liquid, it is dry after basement membrane is infiltrated the 24~36h of conduction liquid, it batches in rolls, obtains modified basement membrane；The basement membrane is hole
50~200 μm of diameter of polytetrafluoroethylene (PTFE) non-woven fabrics;
(2), it will print that ink is roll-to-roll to be printed on modified basement membrane, handle 30~90min in amine atmosphere, pressing is protected after drying
Cuticula batches；The printing ink is mixed with polysilazane, viscosity modifier according to weight ratio 5:90:5 by chopped carbon fiber
It is obtained by 3~5h of ultrasonic disperse;
(3), repeat step (2), will print on the roll-to-roll another side for being printed on modified basement membrane of ink, amine atmosphere handle 30~
90min presses protective film after drying, batches, and obtains fuel battery gas diffusion layer.
2. a kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer according to claim 1, special
Sign is, conductive carbon powder described in step (1) be in graphene, natural graphite, globular graphite of the partial size less than 10 μm at least
It is a kind of.
3. a kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer according to claim 1, special
Sign is, dry described in step (1) to dry up to carry out 1~3h using 100 DEG C of heat-flash nitrogen streams.
4. a kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer according to claim 1, special
Sign is that the length of chopped carbon fiber described in step (2) is less than 0.2mm.
5. a kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer according to claim 1, special
Sign is, the viscosity modifier be hydroxypropyl methyl cellulose, Sodium Polyacrylate, fumed silica according to weight ratio 1~
The mixture of 10:5~10:1~5.
6. a kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer according to claim 1, special
Sign is that the amine atmosphere is the gaseous atmosphere of aminated compounds；The aminated compounds is methylamine, dimethylamine, ethamine, diethyl
Amine, dipropylamine, diisopropylamine, tripropyl amine (TPA), butylamine, dibutylamine, tri-n-butylamine, isobutylamine, diisobutyl amine, tertiary fourth
At least one of base amine, amylamine, triamylamine hexyl amine.
7. a kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer according to claim 1, special
Sign is that the printing carries out silk-screen printing using roll-to-roll screen process press.
8. a kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer according to claim 7, special
Sign is, the silk screen Kong Wei great diamond hole of the silk-screen printing, diamond hole 0.2~0.5mm of diagonal line length, and silk-screen scraper pressure is
0.5~0.8MPa, number to be printed are controlled in 50~100g/m2。
9. a kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer according to claim 1, special
Sign is that the protective film is hydrophilic polyvinyl alcohol film；The protective film gas diffusion layers using when be removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628636.3A CN110416557B (en) | 2019-07-12 | 2019-07-12 | Method for preparing fuel cell gas diffusion layer by roll-to-roll printing at low cost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628636.3A CN110416557B (en) | 2019-07-12 | 2019-07-12 | Method for preparing fuel cell gas diffusion layer by roll-to-roll printing at low cost |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110416557A true CN110416557A (en) | 2019-11-05 |
| CN110416557B CN110416557B (en) | 2020-10-09 |
Family
ID=68361275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910628636.3A Active CN110416557B (en) | 2019-07-12 | 2019-07-12 | Method for preparing fuel cell gas diffusion layer by roll-to-roll printing at low cost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110416557B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114538947A (en) * | 2022-03-08 | 2022-05-27 | 苏州碳创新材料技术开发有限公司 | Preparation method for roll-to-roll continuous production of carbon material substrate of gas diffusion layer |
| CN114657562A (en) * | 2022-05-20 | 2022-06-24 | 宁波铵特姆新能源科技有限公司 | Porous metal current collector and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090074956A1 (en) * | 2007-09-13 | 2009-03-19 | The Regents Of University Of Michigan | Inkjet printing of materials for use in fuel cells |
| CN102842724A (en) * | 2011-06-20 | 2012-12-26 | 施乐公司 | System and method for selective deposition of catalyst layer for pem fuel cells utilizing inkjet printing |
| WO2016075402A1 (en) * | 2014-11-12 | 2016-05-19 | Commissariat à l'Energie Atomique et aux Energies Alternatives | Method for making a gas-diffusion layer. |
| CN107123822A (en) * | 2017-05-08 | 2017-09-01 | 黄河科技学院 | A kind of preparation method of used in proton exchange membrane fuel cell gas diffusion layers |
| CN107681164A (en) * | 2017-09-25 | 2018-02-09 | 深圳市南科燃料电池有限公司 | Gas diffusion layers and preparation method thereof and fuel cell |
-
2019
- 2019-07-12 CN CN201910628636.3A patent/CN110416557B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090074956A1 (en) * | 2007-09-13 | 2009-03-19 | The Regents Of University Of Michigan | Inkjet printing of materials for use in fuel cells |
| CN102842724A (en) * | 2011-06-20 | 2012-12-26 | 施乐公司 | System and method for selective deposition of catalyst layer for pem fuel cells utilizing inkjet printing |
| WO2016075402A1 (en) * | 2014-11-12 | 2016-05-19 | Commissariat à l'Energie Atomique et aux Energies Alternatives | Method for making a gas-diffusion layer. |
| CN107123822A (en) * | 2017-05-08 | 2017-09-01 | 黄河科技学院 | A kind of preparation method of used in proton exchange membrane fuel cell gas diffusion layers |
| CN107681164A (en) * | 2017-09-25 | 2018-02-09 | 深圳市南科燃料电池有限公司 | Gas diffusion layers and preparation method thereof and fuel cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114538947A (en) * | 2022-03-08 | 2022-05-27 | 苏州碳创新材料技术开发有限公司 | Preparation method for roll-to-roll continuous production of carbon material substrate of gas diffusion layer |
| CN114657562A (en) * | 2022-05-20 | 2022-06-24 | 宁波铵特姆新能源科技有限公司 | Porous metal current collector and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110416557B (en) | 2020-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108550876A (en) | A kind of super-hydrophobic gas diffusion layers of fuel cell durability | |
| KR101533205B1 (en) | Gas diffusion electrode substrate for fuel cell, membrane electrode assembly, and fuel cell | |
| CN109256569B (en) | Microporous layer of gas diffusion layer of proton exchange membrane fuel cell and preparation method thereof | |
| JP6489009B2 (en) | Gas diffusion electrode substrate | |
| WO2014030553A1 (en) | Gas-diffusion electrode base material for fuel cell | |
| CN109301263A (en) | A kind of durable fuel cell gas diffusion layers and preparation method | |
| KR101304489B1 (en) | Method for preparing carbon paper by controling specific charge density and viscosity in solution, the carbon paper prepared using the method and fuel cell comprising the carbon paper | |
| CA3015334C (en) | Gas diffusion electrode base, laminate and fuel cell | |
| WO2016076132A1 (en) | Gas diffusion electrode base and method for producing gas diffusion electrode base | |
| CN105254920B (en) | A kind of preparation method of graphene paper prepreg | |
| CN108807802A (en) | Highly-breathable polymer-coated diaphragm and its preparation method and application | |
| CN110416557A (en) | A kind of method that roll-to-roll printing low cost prepares fuel battery gas diffusion layer | |
| CN103194058A (en) | High-thermal-conductive moisture permeable film and preparation method thereof | |
| CN104285324A (en) | Gas diffusion electrode substrate for fuel cell | |
| JP6855843B2 (en) | Electrodes for redox flow batteries and their manufacturing methods, and redox flow batteries | |
| JP6743805B2 (en) | Carbon sheet, gas diffusion electrode substrate, and fuel cell | |
| JP2015015226A (en) | Gas-diffusion electrode base material for fuel cell and method for producing the same | |
| TW202121722A (en) | Gas diffusion layer for fuel cells | |
| CN106549170A (en) | A kind of porous carbon fiber for Proton Exchange Membrane Fuel Cells and preparation method thereof | |
| JP2011524618A (en) | Gas diffusion layer | |
| CN112970138B (en) | Gas diffusion electrode, method for producing gas diffusion electrode, membrane electrode assembly, and fuel cell | |
| CN115315835A (en) | Method for producing gas diffusion electrode base material | |
| CA3043802A1 (en) | Gas diffusion electrode and production method therefor | |
| JP7263774B2 (en) | MICROPOROUS LAYER AND MANUFACTURING METHOD THEREOF, GAS DIFFUSION ELECTRODE BASE MATERIAL, FUEL CELL | |
| CN216250801U (en) | Preparation device for locally-reinforced fuel cell gas diffusion layer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231201 Address after: Room 005, Room 1716, No. 37, Jinlong, Nansha Street, Xiangjiang Financial Business Center, Nansha District, Guangzhou City, Guangdong Province, 510000 (office only) Patentee after: Guangdong Guanhao new material R & D Co.,Ltd. Address before: 610091, Sichuan, Chengdu province Qingyang dragon industrial port, East Sea 4 Patentee before: CHENDU NEW KELI CHEMICAL SCIENCE Co.,Ltd. CHINA |
|
| TR01 | Transfer of patent right |