CN201154346Y - Coating equipment for fuel cell - Google Patents
Coating equipment for fuel cell Download PDFInfo
- Publication number
- CN201154346Y CN201154346Y CNU200720201801XU CN200720201801U CN201154346Y CN 201154346 Y CN201154346 Y CN 201154346Y CN U200720201801X U CNU200720201801X U CN U200720201801XU CN 200720201801 U CN200720201801 U CN 200720201801U CN 201154346 Y CN201154346 Y CN 201154346Y
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- China
- Prior art keywords
- fuel cell
- cell apparatus
- coating
- platform
- coating according
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Inert Electrodes (AREA)
Abstract
The utility model discloses a fuel battery coating device which comprises a foundation bed (1), a platform (2) arranged on the foundation bed (1), and a coating cutter (3) which can move relatively to the platform. The fuel battery coating device is characterized in that a vacuum absorbed pore (8) is arranged on the platform (2) and is connected with a centrifugal fan (7); the lower part of the platform (2) is provided with a heating device (13); a plurality of liquid distributors (5) are arranged on the coating cutter and are connected with a material feeding device (6) through a conduit (14). The fuel battery coating device has the advantages that the carbon paper is easily fixed, coating can be performed while drying, the material feeding is even and controllable, etc.
Description
Technical field
The utility model relates to a kind of device on foot, relates to a kind of fuel cell apparatus for coating concretely.
Background technology
Proton Exchange Membrane Fuel Cells (PEMFC) has advantages such as operating temperature is low, specific power is high, startup is fast, the life-span is long, pollution-free.Wherein membrane electrode (MEA) is its core component, and it is generally by the moon, sun level diffusion layer, and yin, yang level Catalytic Layer and PEM are formed, and it is to fuel cell performance, and stability, durability play a part crucial.
The preparation method of MEA mainly contains thick-layer hydrophobic electrode and two kinds of preparation methods of thin layer hydrophilic electrode.But the gas-diffusion electrode in PEMFC and the general electrochmical power source has very big difference, because of its electrolyte is solid-state ionomer (ionomer), and non-electrolytic solution.Therefore can not make electrolyte infiltrate the inside of porous electrode by means of the surface tension of solution, form three-dimensional reaction zone.In order to make reacting gas reach the surface of eelctro-catalyst by ionomer, should enlarge the ionomer in the Catalytic Layer and the contact surface of electrocatalyst particles as much as possible, the reaction interval of i.e. expansion three-dimensional, form the continuous passage of proton, electronics and reacting gas, to improve ionomer in the amberplex and the interface continuity between the ionomer in the Catalytic Layer simultaneously, could fully improve the utilization rate of catalyst like this, reduce the resistance of various transmittance process again.By research pole catalyze layer dipping different content Nafion studies show that when Nafion content was on the low side, the part catalyst failed to contact with Nafion, catalyst surface does not have ion,
Cause this part catalyst inoperative, catalyst utilization is low, and working as the interior Nafion content of Catalytic Layer for a long time, unnecessary Nafion can be filled in the gas passage of Catalytic Layer on the one hand, has increased the gas transfer resistance, on the one hand, too much Nafion can increase the proton exchange film thickness, increases the proton transfer resistance, has improved the internal resistance of cell, cause battery performance to descend, therefore how uniformly the Nafion layer to be coated on show in the Catalytic Layer very important.
Mentioned the theory of Nafion three-dimensional in the Catalytic Layer in the U.S. Pat 5211984 first, not mentioned for how realizing three-dimensional.Mentioned Nafion three-dimensional coating mainly is to realize by the mode of brushing in other relevant documents and materials, promptly uses soft hairbrush to dip in a little Nafion solution for preparing and brushes on the Catalytic Layer surface.
Owing to lack heating and fixture, and feed must adopt pipette in the apparatus for coating that generally adopts in the prior art, occur phenomenons such as feed and uneven drying be even easily, and carbon paper is difficult for fixing.
The utility model content
The purpose of this utility model provides a kind of fuel cell apparatus for coating, has carbon paper and is easy to fix, can the limit be coated with selvedge drying and uniform feeding, characteristics such as controlled.
Its concrete technical scheme is as follows: a kind of fuel cell apparatus for coating, and the painting cloth-knife that comprises pedestal, is located at the platform on the pedestal and moves relative to platform, described platform is provided with the vacuum suction hole, and it is connected with centrifugal blower; Be provided with heater between described platform and the pedestal; Described painting cloth-knife is provided with some liquid distributors, and it is connected with feeding device by conduit.
Described platform is used for support membrane electrode substrate, and negative pressure is taken out by centrifugal blower in the vacuum suction hole which is provided with, and can fix membrane electrode substrates such as carbon paper or carbon cloths; Described vacuum suction hole can be any suitable shape, as circle, and square or triangle etc., it can be uniformly distributed in
On the described platform, also can be symmetrical distribution.
Described platform can adopt the material of any not yielding, good heat-transfer, and as stainless steel or aluminium etc., its top layer can nickel plating, makes its surfacing.
Described heater can adopt electric heater unit or microwave heating equipment, and its membrane electrode substrate after to coating heats, and makes it can rapid draing; Described heater is positioned at the top of described platform bottom, described pedestal, can be board-like or tubular type, is preferably coiled pipe; Also be provided with painting cloth-knife seesaw knob, coating speed adjusting knob, heater switch and power switch on the described pedestal.
Described painting cloth-knife has the electrodeless variable-speed function, can adjust the coating height, also can adjust the coating height by height adjustment knob is set on painting cloth-knife.
Traditional fuel cell apparatus for coating is owing to adopt pipette to carry out feed, the feed amount is wayward, if fluid flow is too much, to make Nafion solution infiltrate into the carbon paper back side, have a strong impact on the Nafion stereo-effect, thereby reduction battery performance, and cause the even phenomenon of crawling easily, feeding device described in the utility model, be slip to be transported in the described conduit, and then flow out, can realize accurate control as required the feed amount by liquid distributor by peristaltic pump, can guarantee effectively that Nafion solution is coated on the Catalytic Layer equably, and uniform feeding.
The linearly arrangement of described some liquid distributors, itself and described painting cloth-knife junction have cavity portion, are used to store slip, and the outflow portion of its underpart is column structure.
Described apparatus for coating is when operation, and at first the Nafion solution adding deionized water with Du Pont original 5% is diluted to certain density solution, and the back that stirs is stand-by.Connect the coating apparatus power supply, open described heater and centrifugal blower, make the temperature of described platform at 50～80 ℃, then carbon paper is placed on the platform, the rotation painting cloth-knife knob that seesaws makes painting cloth-knife be close to carbon paper one side, regulate the height knob of painting cloth-knife, make its height at 350～550 μ m, start the peristaltic pump feeding speed and be adjusted in 2～10mL/min, solution is dropped on carbon paper one lateral edges by liquid distributor, regulate painting cloth-knife speed at 1～4m/min, begin coating, when painting cloth-knife arrives the carbon paper opposite side, stop coating.Heighten painting cloth-knife height knob, make it return initial carbon paper one side, with carbon paper revolve turn 90 degrees after, will be coated with and highly be adjusted to than highly high 10～50 μ m of last time coating, be coated with next time, go up carrying capacity up to Nafion and reach requirement of experiment.
Compared with prior art, the utility model is simple to operate, fast; Nafion solution is evenly distributed on the Catalytic Layer; The precision height, collimation is good; Nafion solution loss amount is little.
Description of drawings
Fig. 1 is according to the utility model fuel cell apparatus for coating structural representation;
Fig. 2 is the heater structural representation according to preferred embodiment of the present utility model;
Fig. 3 is the liquid distributor cutaway view according to preferred embodiment of the present utility model.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail, but is not limited to content of the present utility model.
Shown in Fig. 1,2 or 3, a kind of fuel cell apparatus for coating comprises pedestal 1, platform 2 and the painting cloth-knife 3 that moves relative to platform, and described platform 2 is provided with vacuum suction hole 8, and it is connected with centrifugal blower 7; Described platform 2 bottoms are provided with heater 13, and described pedestal 1 is provided with painting cloth-knife seesaw knob 12, coating speed adjusting knob 11, heater switch 10 and power switch 9; Described painting cloth-knife 3 is provided with 14 liquid distributors 5, and it is connected with feeding device 6 by conduit 14; Described liquid distributor 5 linearly arrangements, itself and described painting cloth-knife 3 junctions have the cavity portion that stores slip, and the outflow portion of its underpart is column structure.
Described platform 2 is stainless steel or aluminum, its top layer nickel plating; Described vacuum suction hole 8 is circular, square or triangle, and it can be uniformly distributed on the described platform, also can be symmetrical distribution.
Described heater 13 is electric heater unit or microwave heating equipment, and it can be board-like or tubular type, is preferably coiled pipe; Also be provided with painting cloth-knife seesaw knob 12, coating speed adjusting knob 11, heater switch 10 and power switch 9 on the described pedestal 1.
Described feeding device 6 is by peristaltic pump slip to be transported in the described conduit, and then flows out by liquid distributor 5; Described some liquid distributors 5 linearly arrangements, itself and described painting cloth-knife 3 junctions have cavity portion, and the outflow portion of its underpart is column structure.
When operation, at first the Nafion solution adding deionized water with Du Pont original 5% is diluted to certain density solution, and the back that stirs is stand-by.Connect the coating apparatus power supply, open heater switch 10 and centrifugal blower 7, make the temperature of described platform 2 at 50～80 ℃, carbon paper is placed on the platform 2 then, the rotation painting cloth-knife knob 12 that seesaws makes painting cloth-knife 3 be close to carbon paper one side, regulate the height knob 4 of painting cloth-knife 3, make its height at 350～550 μ m, start peristaltic pump 6 feeding speeds and be adjusted in 2～10mL/min, solution is dropped on carbon paper one lateral edges by liquid distributor 5, regulate painting cloth-knife speed at 1～4m/min, begin coating, when painting cloth-knife arrives the carbon paper opposite side, stop coating.Heighten painting cloth-knife height knob 4, make it return initial carbon paper one side, after 90 ℃ of carbon paper rotations, will be coated with and highly be adjusted to than highly high 10～50 μ m of coating last time, be coated with next time, carrying capacity reaches requirement of experiment on Nafion.
Fuel cell apparatus for coating of the present invention is not limited to the coating Nafion solution in the present embodiment, also can be as the Catalytic Layer of fuel cell and the apparatus for coating of regulating course.
Claims (9)
1. fuel cell apparatus for coating, the painting cloth-knife (3) that comprises pedestal (1), is located at the platform (2) on the pedestal and moves relative to platform is characterized in that described platform (2) is provided with vacuum suction hole (8), it is connected with centrifugal blower (7); Be provided with heater (13) between described platform (2) and the pedestal (1); Described painting cloth-knife (3) is provided with some liquid distributors (5), and it is connected with feeding device (6) by conduit (14).
2. fuel cell apparatus for coating according to claim 1 is characterized in that described vacuum suction hole (8) is circle, square or triangle.
3. fuel cell apparatus for coating according to claim 1 is characterized in that described vacuum suction hole (8) is symmetrically distributed on the described platform for evenly distributing or being.
4. fuel cell apparatus for coating according to claim 1 is characterized in that described heater (13) is electric heater unit or microwave heating equipment.
5. fuel cell apparatus for coating according to claim 1 is characterized in that described heater (13) is board-like or tubular type.
6. fuel cell apparatus for coating according to claim 5 is characterized in that described heater (13) is a coiled pipe.
7. fuel cell apparatus for coating according to claim 1 is characterized in that described pedestal (1) is provided with painting cloth-knife seesaw knob (12), coating speed adjusting knob (11), heater switch (10) and power switch (9).
8. fuel cell apparatus for coating according to claim 1 is characterized in that described feeding device (6) is a peristaltic pump.
9. fuel cell apparatus for coating according to claim 1 is characterized in that the linearly arrangement of described liquid distributor (5), and itself and described painting cloth-knife junction have cavity portion, and the outflow portion of its underpart is column structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720201801XU CN201154346Y (en) | 2007-12-28 | 2007-12-28 | Coating equipment for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720201801XU CN201154346Y (en) | 2007-12-28 | 2007-12-28 | Coating equipment for fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201154346Y true CN201154346Y (en) | 2008-11-26 |
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ID=40102136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720201801XU Expired - Fee Related CN201154346Y (en) | 2007-12-28 | 2007-12-28 | Coating equipment for fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201154346Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101543810B (en) * | 2008-03-28 | 2012-04-18 | 汉能科技有限公司 | Device and method for fuel battery coating |
| CN104549900A (en) * | 2015-01-20 | 2015-04-29 | 温州华耀数控科技有限公司 | Flat plate adsorption conveying, shooting and sampling glue sprayer |
| CN111570200A (en) * | 2020-05-25 | 2020-08-25 | 杨炳军 | Diode rubberizing equipment |
-
2007
- 2007-12-28 CN CNU200720201801XU patent/CN201154346Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101543810B (en) * | 2008-03-28 | 2012-04-18 | 汉能科技有限公司 | Device and method for fuel battery coating |
| CN104549900A (en) * | 2015-01-20 | 2015-04-29 | 温州华耀数控科技有限公司 | Flat plate adsorption conveying, shooting and sampling glue sprayer |
| CN111570200A (en) * | 2020-05-25 | 2020-08-25 | 杨炳军 | Diode rubberizing equipment |
| CN111570200B (en) * | 2020-05-25 | 2021-05-25 | 江西兰丰科技有限公司 | Diode rubberizing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20091228 |