CN100456538C - Method for producing fuel battery gas diffusion layer - Google Patents
Method for producing fuel battery gas diffusion layer Download PDFInfo
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- CN100456538C CN100456538C CNB2007100193767A CN200710019376A CN100456538C CN 100456538 C CN100456538 C CN 100456538C CN B2007100193767 A CNB2007100193767 A CN B2007100193767A CN 200710019376 A CN200710019376 A CN 200710019376A CN 100456538 C CN100456538 C CN 100456538C
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 34
- 239000000446 fuel Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 85
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 85
- 239000006229 carbon black Substances 0.000 claims abstract description 45
- 239000004744 fabric Substances 0.000 claims abstract description 39
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 30
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 17
- 239000002270 dispersing agent Substances 0.000 claims abstract description 16
- 239000002033 PVDF binder Substances 0.000 claims abstract description 15
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000002360 preparation method Methods 0.000 claims abstract description 11
- 239000012153 distilled water Substances 0.000 claims abstract description 8
- 238000005245 sintering Methods 0.000 claims description 13
- 238000007598 dipping method Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 9
- 239000000839 emulsion Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000006230 acetylene black Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 6
- ONJQDTZCDSESIW-UHFFFAOYSA-N polidocanol Chemical compound CCCCCCCCCCCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO ONJQDTZCDSESIW-UHFFFAOYSA-N 0.000 claims description 6
- 239000013504 Triton X-100 Substances 0.000 claims description 5
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- 239000007789 gas Substances 0.000 description 13
- 239000003054 catalyst Substances 0.000 description 10
- 230000002209 hydrophobic effect Effects 0.000 description 10
- 150000001721 carbon Chemical class 0.000 description 8
- 239000003610 charcoal Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
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- 239000012528 membrane Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
- 238000003411 electrode reaction Methods 0.000 description 4
- -1 polytetrafluoroethylene Polymers 0.000 description 4
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 241000872198 Serjania polyphylla Species 0.000 description 2
- 238000013461 design Methods 0.000 description 2
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- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 206010021036 Hyponatraemia Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920005569 poly(vinylidene fluoride-co-hexafluoropropylene) Polymers 0.000 description 1
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Classifications
-
- 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
This invention relates to a preparation method for fuel cell gas diffusion layers, which mixes carbon black powder, distilled water and dispersant according to the following proportion: the volume of dispersant is 5-30wt% that of carbon black, the volume of carbon black powder is 1-20wt% that of the entire system, the size of carbon black is 30-1000nm, then adds PTFE or PVDF latex of 10-60% concentration in said carbon black dispersed system uniformly by supersonics, mechanical high speed cutting or mixing for 0.5-3hours, and the content of PTFE or PVDF is 10-50wt% that of the carbon black, and puts carbon paper or cloth in the system to dip for 0.5-15min to take out and dry it and puts it in a dry box to be dried for 5-60min under 45-150deg.C to get carbon paper or cloth carried with carbon black and PTFE or PVDF.
Description
Technical field
The present invention relates to the preparation of fuel cell component, especially a kind of preparation method of fuel battery gas diffusion layer.
Background technology
The PEMFC electrode is a kind of gas-diffusion electrode of porous in the Proton Exchange Membrane Fuel Cells, generally is made up of diffusion layer and catalyst layer.Different diffusion layer materials has very big influence for structure, manufacture craft and the performance of electrode.
Fuel gas arrives catalyst layer through anode diffusion layer in Proton Exchange Membrane Fuel Cells, under the effect of catalyst electrode reaction takes place, promptly
H
2-2H+2e
The electronics that this electrode reaction produces arrives negative electrode by the conduction flow of diffusion layer through external circuit, and hydrogen ion arrives negative electrode under the effect of proton exchange membrane simultaneously.Oxygen generates water by with hydrogen ion and electronics electrode reaction taking place under catalyst action behind the cathode diffusion layer, that is:
1/2?O
2+2H+2e-H
2O
There is (temperature and pressure that depends on battery) in water in the Proton Exchange Membrane Fuel Cells (PEMFC) with gaseous state and liquid state, dilutional hyponatremia or very few performance to PEMFC all can be brought negative effect, see [1] Ersoz A, Olgun H, Ozdogan S.etal., J.Power Sources.2003,118 (1-2): 384-392.
Gas diffusion layers not only plays a part support catalyst layer, stabilized electrodes structure in electrode, also possesses the multiple function that gas passage, electron channel and drainage channel are provided for electrode reaction, see [2] JAMESL, ANDREW D.Fuel cellsystems explained[M] .England:John Wiley﹠amp; Sons Ltd., 2000.66-69.[3] Huang Naike, Wang Shuzhong, power technology, 2003,27 (3): 329-332.Select for use high performance gas diffusion layer material to help improving the combination property of electrode.Desirable diffusion layer should possess 3 characteristics: air permeability and good, good drainage and good electrical conductivity.General gas diffusion layers is made up of base material and transition zone.In multiple base material, the charcoal fibrous paper [is seen 4 Thomas T O, Glendale, Hiroshi I, et al., US:3 829 327,1974.[5] TeruakiKitago, Tadaaki Yoshida, US:3998689,1976.] have uniform porous matter laminate structure and excellent conductivity, chemical stability and thermal stability, be the diffusion layer material that is most widely used in the fuel cell.
[7]Transition zone is known as the intermediate layer again, and its adding has realized reacting gas and the reallocation of product one water between flow field and Catalytic Layer, for strengthening conductivity, improves electrode performance, battery operation stability and service life and has played important function.
People such as L.R.Jordan [see L R JORDAN, SHUKLA A K, BEHRSING T, et al., J.PowerSources, 2000,86:250-254] powdered carbon is mixed with the polytetrafluoroethylene (PTFE) emulsion, add an amount of solvent, utilize ultrasonic wave that it is uniformly dispersed, it is sprayed on the positive and negative surface of base material equably, the oven dry back is in 300～350 ℃ of about 30min of following sintering, make the PTFE fusion remove surfactant simultaneously, obtain hydrophobic material at last by PTFE bonding charcoal and basilar fibers.The powdered carbon that adds plays the effect that strengthens conductivity on the one hand, is used for filling the macropore between the fiber in the base material on the other hand, makes surfacing and even aperture distribution.The mass ratio of PTFE and carbon black was good between 20: 80 and 50: 50 in the coating liquid, and coating layer thickness is between 0.010～0.254mm, and the content of PTFE is 10%～50%.In the research of PEMFC diffusion layer, people such as Xu Hongfeng, Tian Ying are coated with the mixture of one deck XC one 72R charcoal and polytetrafluoroethylene (PTFE) as regulating course on the carbon paper of crossing through hydrophobic treatment.Shao Zhigang, clothing treasured are honest and clean, Han Ming etc. (electrochemistry, 2000,6 (3): 317-323.) with water or ethanol as solvent, it is 1: 1 solution that carbon black and PTFE are made into mass ratio, mixes the back as regulating course.People [LIM C.WANG C Y., Electrochimica Acta, 2004,49 (24): 4149-4156] such as Chan Lim. studied the influence of PTFE content and thickness of diffusion layer.People such as Giorgi [JORDAN LR, SHUKLA A K, BEHRSING T., Journal of Power Sources.2000.86:250-254.] think the porosity of diffusion layer that increased in the diffusion layer PTFE content influence.People [KONG C S, KIM D Y, LEE H K, et al., Journal of Power Sources, 2002,108:185-191.] such as face gift L.R.Jordan think that the oarse-grained acetylene black of use replaces Vulcan XC 72 R charcoals can improve the performance of battery.People such as Chang Sun Kong add pore creating material and improve mass transfer problem in the battery in the PEMFC diffusion layer.
The M.Watanabe[WATANABE M. of Japan, US:5137754,1992.] etc. the people invented a kind of new hydrophobic processing method, with mean molecule quantity is that 250 000 polyethylene is dissolved in the heptane, be made into a kind of film forming solution, with base material, immerse wherein as the charcoal fibrous paper, treat that heptane volatilization back formation mass fraction on carbon paper is 5% PE coating, then this carbon paper with polyethylene coating is put into stainless steel reactor, at room temperature condition, contain in the fluorine gas atmosphere of 10% argon gas and fluoridize about 30min, the hydrophobic material of obtained performance excellence.The hydrophobicity performance of relatively finding the hydrophobic material that makes than the method for flooding with the PTFE emulsion with this hydrophobic processing method by experiment is better.
After base material made charcoal/PTFE coating, find that aperture does not wherein have hydrophobicity, because those apertures of PTFE molecular proportion are big 10～100 times.Thereby when the spraying noble metal catalyst, can find the phenomenon of osmosis of noble metal, cause the reduction of catalyst utilization, therefore need further make hydrophobic and handle those apertures.V.K.KARL[KARL V K., US:3899354,1975.] use the benzinum weak solution of 1.5% paraffin wax to handle to the carbon paper after the coating, baking 30min under 50 ℃ can make the aperture in the coating possess effective hydrophobicity again.Perhaps use the acetone soln of 2.0% cellulose acetate to handle, also can obtain good aperture hydrophobic effect.
Another kind of hydrophobic processing method by the invention of research institute of Japanese Toyota is base material to be exposed to a kind of in plasma treated charcoal fluorine compound gas, makes surface deposition one deck hydrophobic material.Yet this method need design main equipment especially, is not suitable for large-scale production.Above the whole bag of tricks technical process more complicated, base material all will be passed through the secondary high temperature sintering, and making the diffuse layer structure instability has also increased production cost.
Summary of the invention
The objective of the invention is: the preparation method who proposes a kind of fuel battery gas diffusion layer, by designing the particularly diffusion layer of Proton Exchange Membrane Fuel Cells of a kind of easy fuel cell, make diffuse layer structure more stable, pore-size distribution is more even, processing cost reduces greatly, has air permeability and good, good drainage and good electrical conductivity simultaneously; Be fit to the large-scale production of fuel cell, thereby reduce the cost of fuel cell product.
Particular content of the present invention is as follows:
The preparation method of fuel battery gas diffusion layer, carbon black powders, distilled water, dispersant is even according to following mixed, and the amount of carbon black powders is the 1-0wt% of whole system, the amount of dispersant accounts for the 5-30wt% of carbon black; The particle of carbon black is 30-1000nm.The PTFE or the PVDF emulsion of 10-60% concentration are evenly added in the above-mentioned described carbon black powders dispersion, and continue to mix 0.5-3 hour; Mixed method adopts ultrasonic wave, mechanical high-speed to shear or mechanical agitation; The content of PTFE or PVDF is the 10-50wt% of carbon black in the system; Carbon paper or carbon cloth are put into above-mentioned dispersion flood 0.5-15min, taking-up is dried, and puts into drying box at 45-150 ℃ of oven dry 5-60min, obtains being loaded with carbon paper or the carbon cloth of carbon black and PTFE or PVDF.
Dipping can divide and carries out for 1 to 5 time, after each dipping with carbon paper or carbon cloth 45-150 ℃ of temperature under dry 5-60min.
Above-mentioned carbon paper or carbon cloth are at 150-390 ℃ of sintering 20-60min; The sintering mode of heating adopts baking oven, tube furnace or infrared heating mode.
Described carbon black powders comprises acetylene black, active carbon black etc., and dispersant is XH-1, AEO-9, FC4430, Tween-60 or Triton X-100.The carbon paper of above-mentioned processing or carbon cloth are used for the diffusion layer of the male or female of fuel cell; The aperture of diffusion layer is the 0.5-10 micron, and contact angle is the 110-160 degree.
The organic solution of perhaps directly carbon paper or carbon cloth being put into PVDF or PVDF-HFP copolymer is flooded 0.5-15min, and the content of HFP is 10-50wt% in the copolymer.Taking-up is dried, and at 150-250 ℃ of sintering 20-60min.Sintering process can the electricity consumption heated oven, tubular type road etc. or other heating means such as infrared heating etc.
Described carbon paper or carbon cloth are used for the diffusion layer of the male or female of fuel cell, and the aperture of diffusion layer is the 0.5-10 micron, and contact angle is the 110-160 degree.
The preparation method of fuel battery gas diffusion layer of the present invention, the diffusion layer of design Proton Exchange Membrane Fuel Cells, make diffuse layer structure more stable, pore-size distribution is more even, processing cost reduces greatly, have air permeability and good, good drainage and good electrical conductivity simultaneously, also reduce the cost of fuel cell product.
Embodiment
Carbon black powders adopts acetylene black, active carbon black etc., and distilled water, dispersant adopt XH-1, AEO-9, FC4430, Tween-60, Triton X-100 etc., and even according to certain mixed, the amount of dispersant accounts for the 5-30wt% of carbon black.Mixed method comprises ultrasonic wave, high speed shear, mechanical agitation etc.The particle of guaranteeing carbon black is 30-1000nm.The amount of carbon black powders is the 1-20wt% of whole system.
PTFE or PVDF emulsion are evenly added in the above-mentioned dispersion, and continue to mix 0.5-3 hour.Mixed method comprises ultrasonic wave, high speed shear, mechanical agitation etc.The content of PTFE or PVDF is the 10-50wt% of carbon black in the system.Carbon paper or carbon cloth are put into above-mentioned dispersion flood 0.5-15min, taking-up is dried, and puts into drying box 50-150 ℃ of oven dry, obtains being loaded with carbon paper or the carbon cloth of carbon black and PTFE or PVDF.Dipping can divide 1 time or repeatedly carry out, and after each dipping carbon paper or carbon cloth is dried at a certain temperature.Above-mentioned carbon paper or carbon cloth are put into baking oven, at 50-390 ℃ of sintering 20-60min.Sintering process can be used baking oven, tube furnace or other heating means such as infrared heating etc.Acetylene black powder (perhaps active carbon such as Vulcan XC-72) is dispersed in (solid content is 1-20wt%) in the deionized water, and in dispersion, add certain amount of dispersant, as XH-1, AEO-9, FC4430, Tween-60, TritonX-100 etc., the amount of dispersant accounts for the 5-30wt% of carbon black.Obtain finely dispersed slurry.Slurry in, add the PTFE emulsion, the content of emulsion is the 10-50wt% of carbon black.And continue to stir 0.5-2 hour.
Carbon paper or carbon cloth (Tory or other model) are put into described slurry flood 0.5-15min, taking-up is dried, and puts into drying box 50-150 ℃ of oven dry, obtains being loaded with carbon paper or the carbon cloth of carbon black and PTFE.
Again carbon paper or carbon cloth are put into above-mentioned slurry, repeat above-mentioned steps.And finally to obtain the carbon black carrying capacity be 0.5-3mg/cm
2Carbon paper or carbon cloth.Carbon paper or carbon cloth are put into baking oven, at 300-390 ℃ of sintering 20-60min.Above-mentioned carbon paper or carbon cloth are applied in the fuel cell as diffusion layer, play support catalyst layer, transmission reaction medium and effects such as product, collected current.
Embodiment 1
Take by weighing 5-40g acetylene black powder or other carbon black with the 200ml beaker,,, powder is stirred into the dough shape with glass rod as XH-1, AEO-9, FC4430, Tween-60, Triton X-100 etc. to wherein adding certain density dispersant.In the 2500ml beaker, adding 200-500ml concentration is the above-mentioned dispersant of 0.5-10%, adds a certain amount of distilled water again.Use the high-shear emulsion machine agitating solution, and divide doughy carbon black 10 times every 2min to add in the above-mentioned beaker.After all adding, continue to shear 30min.Dispersion liquid in the beaker is divided in two stainless steel cups (14cm), and puts into ultrasonic disperser, guarantee water in the tank with not ing to stainless steel cup half highly.Ultrasonic stirring 1.0 hours.The mixed liquor that in above-mentioned slurry, adds PTFE (5-60ml, 60%) and a certain amount of distilled water gradually, and continue to stir 0.5 hour.Slurry in 2 stainless steel cups is mixed, separate in two cups again, and continue to stir 0.5 hour.Scattered acetylene black slurry is poured in the handtailor container, guaranteed that the slurry liquid level is more than the 2cm in the container.Carbon paper or carbon cloth are cut into 200 * 200mm size, keep flat and flood 1-10min in the slurry, take out, just putting 0.5min on filter paper, horizontal is placed on the stainless steel frame then, and puts into drying box in 50-150 ℃ of oven dry (about 5min).This carbon paper or carbon cloth are kept flat into slurry dipping 1-10min again, take out, be inverted 0.5min on filter paper, horizontal is placed on the stainless steel frame then, and puts into drying box in 50-150 ℃ of oven dry (about 5min).This carbon paper or carbon cloth are kept flat into slurry dipping 1-10min again, take out, just putting 0.5min on filter paper, horizontal is placed on the stainless steel frame then, and puts into drying box in 105 ℃ of oven dry (about 5min).This carbon paper or carbon cloth are kept flat into slurry dipping 1min again, take out, be inverted 0.5min on filter paper, horizontal is placed on the stainless steel frame then, and puts into drying box in 150 ℃ of oven dry (about 5min).Carbon paper or carbon cloth flood 4-40min altogether, and the appendix amount is 1-10mg/cm after the oven dry
2Face up one when guaranteeing the oven dry of each horizontal, catalyst will be near at this simultaneously.At last, carbon paper is put into baking oven, at 300-400 ℃ of sintering 20-60min.Last carbon black appendix amount is 0.5-3.5mg/cm
2The aperture of carbon paper is the 0.5-10 micron, and contact angle is the 110-160 degree.
Embodiment 2
Take by weighing 5-40g acetylene black powder or other carbon black with the 200ml beaker,,, powder is stirred into the dough shape with glass rod as XH-1, AEO-9, FC4430, Tween-60, Triton X-100 etc. to wherein adding certain density dispersant.In the 2500ml beaker, adding 200-500ml concentration is the above-mentioned dispersant of 0.5-10%, adds a certain amount of distilled water again.Use the high-shear emulsion machine agitating solution, and divide doughy carbon black 10 times every 2min to add in the above-mentioned beaker.After all adding, continue to shear 30min.Dispersion liquid in the beaker is divided in two stainless steel cups (14cm), and puts into ultrasonic disperser, guarantee water in the tank with not ing to stainless steel cup half highly.Ultrasonic stirring 1.0 hours.Carbon paper or carbon cloth are cut into 200 * 200mm size, keep flat and flood 1-10min in the slurry, take out, just putting 0.5min on filter paper, horizontal is placed on the stainless steel frame then, and puts into drying box in 50-150 ℃ of oven dry (about 5min).This carbon paper or carbon cloth are kept flat into slurry dipping 1-10min again, take out, be inverted 0.5min on filter paper, horizontal is placed on the stainless steel frame then, and puts into drying box in 50-150 ℃ of oven dry (about 5min).This carbon paper or carbon cloth are kept flat into slurry dipping 1-10min again, take out, just putting 0.5min on filter paper, horizontal is placed on the stainless steel frame then, and puts into drying box in 105 ℃ of oven dry (about 5min).This carbon paper or carbon cloth are kept flat into slurry dipping 1min again, take out, be inverted 0.5min on filter paper, horizontal is placed on the stainless steel frame then, and puts into drying box in 150 ℃ of oven dry (about 5min).Carbon paper or carbon cloth flood 4-40min altogether, and the appendix amount is 1-10mg/cm after the oven dry
2Face up one when guaranteeing the oven dry of each horizontal, catalyst will be near at this simultaneously.With this carbon paper or carbon cloth PVDF solution impregnation 1-10min with 10-30wt%, put into distilled water number minute after the taking-up immediately, take out then and put into baking oven, at 100-250 ℃ of sintering 20-60min.Last carbon black appendix amount is 0.5-3.5mg/cm
2
Claims (4)
1, fuel battery gas diffusion layer is with the preparation method of carbon paper or carbon cloth, it is characterized in that carbon black powders, distilled water, dispersant even according to following mixed, the amount of dispersant accounts for the 5-30wt% of carbon black, and the amount of carbon black powders is the 1-20wt% of whole system; The particle of carbon black is 30-1000nm; The PTFE or the PVDF emulsion of 10-60% concentration are evenly added in the above-mentioned described carbon black powders dispersion, and continue to mix 0.5-3 hour; Mixed method adopts ultrasonic wave, mechanical high-speed to shear or mechanical agitation; The content of PTFE or PVDF is the 10-50wt% of carbon black in the system; Carbon paper or carbon cloth are put into above-mentioned dispersion flood 0.5-15min, taking-up is dried, and puts into drying box at 45-150 ℃ of oven dry 5-60min, obtains being loaded with carbon paper or the carbon cloth of carbon black and PTFE or PVDF.
2, fuel battery gas diffusion layer according to claim 1 is with the preparation method of carbon paper or carbon cloth, it is characterized in that dipping can divide 1 time or repeatedly carries out, after each dipping with carbon paper or carbon cloth 45-150 ℃ of temperature under dry 5-60min.
3, fuel battery gas diffusion layer according to claim 1 is with the preparation method of carbon paper or carbon cloth, it is characterized in that above-mentioned carbon paper that is loaded with carbon black and PTFE or PVDF or carbon cloth are at 150-390 ℃ of sintering 20-60min; The sintering mode of heating adopts baking oven, tube furnace or infrared heating mode.
4, fuel battery gas diffusion layer according to claim 1 is characterized in that with the preparation method of carbon paper or carbon cloth described carbon black powders comprises acetylene black or active carbon black, and dispersant is XH-1, AEO-9, FC4430, Tween-60 or Triton X-100.
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| CN101435174B (en) * | 2007-11-14 | 2010-12-22 | 上海河森电气有限公司 | Method for making high performance carbon paper special for fuel cell |
| CN101540405A (en) * | 2008-01-25 | 2009-09-23 | 汉能科技有限公司 | Fuel cell leveling layer composition and preparation method thereof as well as gas diffusion layer |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137754A (en) * | 1989-05-12 | 1992-08-11 | Tanaka Kikinzoku Kogyo K. K. | Process for preparing fluorinated material employed in a fuel cell |
| WO2003058743A2 (en) * | 2001-12-27 | 2003-07-17 | E.I. Du Pont De Nemours And Company | Gas diffusion backing for fuel cells |
| CN1713424A (en) * | 2004-06-23 | 2005-12-28 | 比亚迪股份有限公司 | Electrode production of fuel battery membrane with proton exchange membrane |
-
2007
- 2007-01-19 CN CNB2007100193767A patent/CN100456538C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137754A (en) * | 1989-05-12 | 1992-08-11 | Tanaka Kikinzoku Kogyo K. K. | Process for preparing fluorinated material employed in a fuel cell |
| WO2003058743A2 (en) * | 2001-12-27 | 2003-07-17 | E.I. Du Pont De Nemours And Company | Gas diffusion backing for fuel cells |
| CN1713424A (en) * | 2004-06-23 | 2005-12-28 | 比亚迪股份有限公司 | Electrode production of fuel battery membrane with proton exchange membrane |
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