CN203218381U - Proton exchange membrane fuel cell pack - Google Patents
Proton exchange membrane fuel cell pack Download PDFInfo
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- CN203218381U CN203218381U CN2013202429065U CN201320242906U CN203218381U CN 203218381 U CN203218381 U CN 203218381U CN 2013202429065 U CN2013202429065 U CN 2013202429065U CN 201320242906 U CN201320242906 U CN 201320242906U CN 203218381 U CN203218381 U CN 203218381U
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- oxygen
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a proton exchange membrane fuel cell pack which comprises a plurality of single cells. Each single cell comprises a membrane electrode, a hydrogen reaction plate and an oxygen/air reaction plate. The hydrogen reaction plate and the oxygen/air reaction plate are arranged on two sides of the membrane plate, an oxygen passage is formed at corresponding positions of the membrane electrode and the oxygen reaction plate and the oxygen/air reaction plate on two sides of the membrane electrode, a hydrogen reaction plate sealing member is arranged between the membrane electrode and the hydrogen reaction plate, an oxygen/air reaction plate sealing member is arranged between the membrane electrode and the oxygen/air reaction plate, a hydrogen reaction runner is formed on one side, close to the membrane electrode, of the hydrogen reaction plate in an etching manner, and an oxygen/air reaction runner is formed on one side, close to the membrane electrode, of the oxygen/air reaction plate in an etching manner. Seven oxygen radiating passages are arranged in the middle of the outer side of the oxygen reaction plate and are covered by an oxygen radiating plate or pile end plate. Oxygen radiating runners are arranged on the outer side of the oxygen/air reaction plate, and are covered by an oxygen/air radiating plate or pile end plate. The proton exchange membrane fuel cell pack has the advantages of simple structure, simplified manufacturing and low cost.
Description
Technical field
The utility model belongs to fuel cell field, is specifically related to Proton Exchange Membrane Fuel Cells.
Background technology
Fuel cell technology is a kind of cleaning, the reproducible energy technology that electric energy, heat energy and water that hydrogen and oxygen produce when electrochemical reaction takes place are utilized.Fuel cell can be divided into alkaline fuel cell, phosphoric acid fuel cell, molten carbonate fuel cell, Solid Oxide Fuel Cell, Proton Exchange Membrane Fuel Cells etc. according to the dielectric difference.And Proton Exchange Membrane Fuel Cells has obtained common attention in the world because its power density is big, working temperature is low, battery structure is simple, pressure is changed characteristics such as insensitive, and its product also progresses into market.
The electrolyte of Proton Exchange Membrane Fuel Cells is proton exchange membrane, and at present widely used is the Nafion series perfluoro sulfonic acid membrane that E.I.Du Pont Company produces.The effect of proton exchange membrane is dual, provides the hydrogen ion passage as electrolyte, isolates polarization response gas as barrier film again.Optimizing ion and water transmission performance and the suitable water management of film, is the key that guarantees battery performance.In the both sides of barrier film, one deck catalyst layer is arranged respectively.Catalyst mainly is made up of Pt/C, adds Nafion solution in Catalytic Layer again, to increase proton conduction performance and Catalytic Layer and electrolytical contact performance.Catalytic Layer is the fuel cell gas zone.In the both sides of Catalytic Layer, one deck gas diffusion layers is respectively arranged, main effect is that the conduction, gas of supporter, inside battery as Catalytic Layer is in the distribution of electrode surface, the discharge of product etc.At present, the material of diffusion layer mainly is carbon paper, carbon cloth or wire netting.The porosity of diffusion layer, hydrophobic property, thickness and component have very big influence to fuel battery performance.The several variablees of this of diffusion layer all are to influence fuel cell performance interrelatedly.Porosity is conducive to the diffusion of gas greatly, excessive then distribution of gas inequality, the water blockoff phenomenon takes place easily.In general hydrophobicity is high better, and the too high pore size distribution inequality, processing cost of will making is too high.The common component film electrode of dielectric film, Catalytic Layer and gas diffusion layers (MEA).
In the both sides of membrane electrode, a bipolar plates is respectively arranged, its effect is electric current collection and transmission, distribution of gas and heat management.At present main is material with graphite, but its price height, density are big, and owing to the fragility of graphite, can not do very thinly, has increased the weight and volume of pile.So each researcher is also seeking the substitute of graphite, such as conductive plastics, stainless steel etc.On bipolar plates, all be carved with gas flow, purpose is to make reacting gas can be uniformly distributed in the entire electrode surface.The shape of gas flow is a lot, the runner that more commonly crawls (seeing U.S. Patent number 6099984).Also gas input passage must be arranged on bipolar plates, fuel cell external reaction gas evenly is diverted to the bipolar plates of each monocell by gas input passage; After cell reaction finished, remaining tail gas will enter the gas passing away from monocell separately, was discharged to the outside and discharging of fuel cell again or carried out recyclingly, and the runner that enters bipolar plates by gas input passage participates in reaction again.
All can not be to battery/pile external leakage in fuel cell reaction hydrogen and the oxygen/air reaction zone in gas I/O passage and on bipolar plates, so the seal of different shape is arranged in bipolar plates, such as being sealing ring, the sealing gasket of material by silicon rubber or Teflon rubber, or various corrosion resistant fluid sealant.Therefore in order to guarantee strict air-proof condition, in the junction, runner import/export of gas I/O passage and bipolar plates, hard material must be arranged as supporter or the gap bridge of soft encapsulant.This hard material thickness is 0.05-0.3mm, and length is more than the 2mm, and width is 0.5-5mm, is generally metal such as nickel, stainless steel etc., its requirement on machining accuracy height (± 0.02mm), battery assembly technology complexity has increased the production cost of fuel cell.And in the fuel cell operation environment, metal support or the corrosion easily of passing a bridge cause the pollution of membrane electrode, and the phenomenon that leaks air easily herein.The present invention addresses this problem in design, can remove whole gap bridges, and can guarantee the sealing of gas.
The utility model content
The utility model is intended to overcome the defective of prior art, provide a kind of simple in structure, make to simplify, Proton Exchange Membrane Fuel Cells that cost is low.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
Proton Exchange Membrane Fuel Cells, comprise that several monocells constitute, described monocell comprises membrane electrode, hydrogen reaction plate and oxygen/air reaction plate, described membrane electrode both sides respectively are provided with hydrogen reaction plate and oxygen/air reaction plate, the hydrogen reaction plate of described membrane electrode and both sides thereof and oxygen/air reaction plate corresponding section have the hydrogen passage, it is hydrogen plate seal between described membrane electrode and the hydrogen reaction plate, it is oxygen/air plate seal between described membrane electrode and the oxygen/air reaction plate, be carved with the hydrogen reaction runner near membrane electrode one side on described hydrogen reaction plate, described oxygen/air reaction plate is carved with oxygen/air reaction runner near membrane electrode one side; The outer middle side part of described hydrogen reaction plate is provided with 7 hydrogen heat dissipation channels, and described hydrogen heat dissipation channel outer side covers has hydrogen heating panel or pile end plate; The outside of described oxygen/air reaction plate is provided with oxygen heat radiation runner, and described oxygen heat dissipation channel outer side covers has oxygen/air heating panel or pile end plate.
Described hydrogen heating panel or oxygen/air heating panel are that corrosion resistant plate, graphite cake or nylon sheet are made.
Described hydrogen reaction plate is that carbon steel sheet or stainless steel are made.
Described hydrogen plate seal or oxygen/air plate seal are sealing ring, the sealing gasket that silicon rubber or Teflon material are made.
Described oxygen/air reaction plate is provided with advancing/gas outlet of cross direction profiles.
Described hydrogen heat dissipation channel is parallel and distribute at interval evenly each other, and described hydrogen heat dissipation channel shape, width are consistent with the heat radiation runner on the hydrogen heating panel.
Described hydrogen reaction runner or oxygen/air reaction stream road shape are flexure type, through-type up and down.
Described oxygen/air reaction runner below is provided with groove, has the small through hole that the reaction runner with the oxygen/air reaction plate is connected in described groove lower end.
Described hydrogen reaction plate is provided with and is in hydrogen passage below hydrogen channel groove, has the through hole that is connected with the hydrogen passage in described hydrogen channel groove lower end.
Compared with prior art, the utlity model has following beneficial effect:
The runner of dual polar plates of proton exchange membrane fuel cell and gas I/O passage had been removed in the past and had been passed a bridge at the needed metal of gas I/O passage and junction, gas flow import/export, increase the reliability of air seal, simplify production technology, reduced the fuel cell cost.Also increased battery operated reliability.
Description of drawings
Fig. 1 is the view in transverse section of the monocell of the utility model Proton Exchange Membrane Fuel Cells.
Fig. 2 is the front view of the monocell of the utility model Proton Exchange Membrane Fuel Cells.
Fig. 3 is that the D of the utility model Proton Exchange Membrane Fuel Cells is to profile.
Fig. 4 is that the B of the utility model Proton Exchange Membrane Fuel Cells is to profile.
Fig. 5 is the radiating surface schematic diagram of the hydrogen reaction plate of the utility model Proton Exchange Membrane Fuel Cells.
Fig. 6 is the reaction surface schematic diagram of the hydrogen reaction plate of the utility model Proton Exchange Membrane Fuel Cells.
Fig. 7 is the radiating surface schematic diagram of the oxygen/air reaction plate of the utility model Proton Exchange Membrane Fuel Cells.
Fig. 8 is the reaction surface K-K schematic diagram of the oxygen/air reaction plate of the utility model Proton Exchange Membrane Fuel Cells.
Fig. 9 is that the M-M of Fig. 8 is to sectional view.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
As shown in Figure 1, Proton Exchange Membrane Fuel Cells, comprise that several monocells constitute, described monocell comprises membrane electrode 4, hydrogen reaction plate 2 and oxygen/air reaction plate 6, these membrane electrode 4 both sides respectively are provided with hydrogen reaction plate 2 and oxygen/air reaction plate 6, and described hydrogen reaction plate 2 is made for carbon steel sheet or stainless steel.Hydrogen plate seal 3 between described membrane electrode 4 and the hydrogen reaction plate 2, be oxygen/air plate seal 5 between described membrane electrode 4 and the oxygen/air reaction plate 6, described hydrogen plate seal 3 or oxygen/air seal 5 are sealing ring, the sealing gasket that silicon rubber or Teflon material are made.Be carved with hydrogen reaction runner 11 near membrane electrode 4 one sides on described hydrogen reaction plate 2, described oxygen/air reaction plate 6 is carved with horizontal oxygen/air reaction runner 9 near membrane electrode one side; Described hydrogen reaction plate 2 outer middle side parts are provided with 7 hydrogen heat dissipation channels 10, and described hydrogen heat dissipation channel 10 outer side covers have hydrogen heating panel or pile end plate 1; Have oxygen heat radiation runner on the hydrogen heating panel 1; Described hydrogen heating panel 1 is made for corrosion resistant plate, graphite cake or nylon sheet.The outside of described oxygen/air reaction plate 6 is provided with oxygen/air heat dissipation channel 8 longitudinally, described oxygen/air heat dissipation channel 8 outer side covers have oxygen/air heating panel or pile end plate 7, have oxygen heat radiation runner on the oxygen/air heating panel 7, described oxygen/air heating panel 7 is made for stainless steel, graphite cake or nylon sheet.
What as shown in Figure 2, described oxygen/air reaction plate 6 was provided with cross direction profiles advances/gives vent to anger groove 13.The size of the air inlet/groove of giving vent to anger by the flow of oxygen/air with and pressure reduction in runner determine.
As shown in Figure 3, oxygen/air reaction plate 6 belows are provided with groove, have the small through hole 14 that is connected with oxygen/air reaction runner 9 in described groove lower end.As can be seen, oxygen/air at oxygen/air plate 6 back sides by advance/gas outlet groove 13, enter oxygen/air reaction runner 9 via small through hole 14, through after the electrochemical reaction, be discharged to out/gas outlet groove 13 places via small through hole 14, the back side by the oxygen/air plate again, thereby be discharged to outside batteries.Oxygen/air seal 5 guarantees that hydrogen/air does not leak into outside batteries.At the oxygen/air import and export, do not need the existence of passing a bridge, guarantee the reliability of sealing, and reduced the cost of raw material and processing cost.
As shown in Figure 4, the hydrogen reaction plate 2 of described membrane electrode 4 and both sides thereof and oxygen/air reaction plate 6 corresponding sections have hydrogen passage 12, and its shape can be square, circle or oval, and size is determined by hydrogen flowing quantity.Hydrogen passage 12 is provided with hydrogen channel seal material, be provided with groove seal 17 around the groove at hydrogen reaction plate 2 back sides, hydrogen reaction plate 2 is provided with and is in hydrogen passage 12 below hydrogen channel grooves, has the through hole 15 that is connected with hydrogen passage 12 in described hydrogen channel groove lower end.When hydrogen is imported, from 12 inputs of hydrogen passage, enter hydrogen reaction plate 2 via groove, and enter hydrogen reaction runner 11 via cross through hole 15, after the reaction, enter hydrogen passage 12 from hydrogen reaction runner 11 via through hole 15, groove.Thereby with exhaust emissions outside battery.Enter hydrogen reaction runner 11(or be discharged to the hydrogen passage from the reaction runner from hydrogen passage 12 at hydrogen) time, do not need the existence of passing a bridge, guarantee the reliability of sealing, and reduced raw-material cost and processing cost.
As Fig. 5, shown in Figure 6, at hydrogen reaction plate 2 hydrogen heat dissipation channel 10 is arranged, the heat radiation runner on its shape, width and the hydrogen heating panel 1 is consistent, and its degree of depth can be different, and size also is to be determined by the kind of heat eliminating medium and flow.Hydrogen passage 12, groove and through hole 15 connect hydrogen passage 12 and hydrogen reaction runner 11.Reaction surface at the hydrogen reaction plate is provided with hydrogen reaction runner 11, and the hydrogen reaction flow channel shape is up and down crooked shape, straight-through shape or other shape.Size is determined by the flow of hydrogen and the pressure reduction of stroke.
As Fig. 7, Fig. 8, shown in Figure 9, oxygen/air reaction plate 6 back sides are provided with heat dissipation channel 8, and the heat radiation runner on its shape, width and the oxygen/air heating panel 7 is consistent, and its degree of depth can be different, and size also is to be determined by the kind of heat eliminating medium and flow.Crooked shape, straight-through shape or other shape about oxygen/air reaction runner 9 is shaped as and is, oxygen/air reaction runner size is determined by the flow of oxygen/air and the pressure reduction of stroke.
Oxygen/air through advancing/groove 13 of giving vent to anger, enter oxygen/air reaction runner 9 via hydrogen passage 12, reaction is by entering hydrogen passage 12 by advancing/give vent to anger groove 13.As can be seen, gas inlet and outlet junction, the not existence of passing a bridge.
The runner of dual polar plates of proton exchange membrane fuel cell and gas I/O passage had been removed in the past and had been passed a bridge at the needed metal of gas I/O passage and junction, gas flow import/export, increase the reliability of air seal, simplify production technology, reduced the fuel cell cost.Also increased battery operated reliability.
The above only is explanation execution mode of the present utility model; be not limited to the utility model; for a person skilled in the art; all within spirit of the present utility model and principle; any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (9)
1. Proton Exchange Membrane Fuel Cells, comprise that several monocells constitute, described monocell comprises membrane electrode, hydrogen reaction plate and oxygen/air reaction plate, it is characterized in that: described membrane electrode both sides respectively are provided with hydrogen reaction plate and oxygen/air reaction plate, the hydrogen reaction plate of described membrane electrode and both sides thereof and oxygen/air reaction plate corresponding section have the hydrogen passage, it is hydrogen plate seal between described membrane electrode and the hydrogen reaction plate, it is oxygen/air plate seal between described membrane electrode and the oxygen/air reaction plate, be carved with the hydrogen reaction runner near membrane electrode one side on described hydrogen reaction plate, described oxygen/air reaction plate is carved with oxygen/air reaction runner near membrane electrode one side; The outer middle side part of described hydrogen reaction plate is provided with 7 hydrogen heat dissipation channels, and described hydrogen heat dissipation channel outer side covers has the pile end plate; The outside of described oxygen/air reaction plate is provided with oxygen heat radiation runner, and described oxygen heat dissipation channel outer side covers has oxygen/air heating panel or pile end plate.
2. Proton Exchange Membrane Fuel Cells as claimed in claim 1, it is characterized in that: described hydrogen heat dissipation channel outer side covers has the hydrogen heating panel to replace the pile end plate, and described hydrogen heating panel or oxygen/air heating panel are that corrosion resistant plate, graphite cake or nylon sheet are made.
3. Proton Exchange Membrane Fuel Cells as claimed in claim 1, it is characterized in that: described hydrogen reaction plate is that carbon steel sheet or stainless steel are made.
4. Proton Exchange Membrane Fuel Cells as claimed in claim 1, it is characterized in that: described hydrogen plate seal is sealing ring, the sealing gasket of silicon rubber or Teflon material.
5. Proton Exchange Membrane Fuel Cells as claimed in claim 1, it is characterized in that: described oxygen/air reaction plate is provided with advancing/gas outlet of cross direction profiles.
6. Proton Exchange Membrane Fuel Cells as claimed in claim 1 is characterized in that: described hydrogen heat dissipation channel is parallel and evenly distribute at interval each other, and described hydrogen heat dissipation channel shape, width are consistent with the heat radiation runner on the hydrogen heating panel.
7. Proton Exchange Membrane Fuel Cells as claimed in claim 1 is characterized in that: flexure type, through-type about described hydrogen reaction runner or oxygen/air reaction stream road shape are.
8. Proton Exchange Membrane Fuel Cells as claimed in claim 1 is characterized in that: described oxygen/air reaction runner below is provided with groove, has the small through hole that the reaction runner with the oxygen/air reaction plate is connected in described groove lower end.
9. Proton Exchange Membrane Fuel Cells as claimed in claim 1 is characterized in that: be provided with the hydrogen channel groove below the described hydrogen passage, have the through hole that is connected with the hydrogen passage in described hydrogen channel groove lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202429065U CN203218381U (en) | 2013-05-07 | 2013-05-07 | Proton exchange membrane fuel cell pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202429065U CN203218381U (en) | 2013-05-07 | 2013-05-07 | Proton exchange membrane fuel cell pack |
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| CN203218381U true CN203218381U (en) | 2013-09-25 |
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| CN2013202429065U Expired - Fee Related CN203218381U (en) | 2013-05-07 | 2013-05-07 | Proton exchange membrane fuel cell pack |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876744A (en) * | 2017-03-19 | 2017-06-20 | 李忠 | Hydrogen fuel cell, automobile and unmanned plane |
| CN109755610A (en) * | 2019-03-15 | 2019-05-14 | 郑州正方科技有限公司 | Closed air-cooled fuel cell |
| CN110767918A (en) * | 2018-07-27 | 2020-02-07 | 北京英博新能源有限公司 | Single cell and assembly method thereof, fuel cell stack and preparation method thereof |
| CN113161589A (en) * | 2021-04-01 | 2021-07-23 | 武汉理工大学 | Tail hydrogen treatment device of proton exchange membrane fuel cell |
-
2013
- 2013-05-07 CN CN2013202429065U patent/CN203218381U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876744A (en) * | 2017-03-19 | 2017-06-20 | 李忠 | Hydrogen fuel cell, automobile and unmanned plane |
| CN110767918A (en) * | 2018-07-27 | 2020-02-07 | 北京英博新能源有限公司 | Single cell and assembly method thereof, fuel cell stack and preparation method thereof |
| CN110767918B (en) * | 2018-07-27 | 2021-07-16 | 北京英博新能源有限公司 | Single cell and assembly method thereof, fuel cell stack and preparation method thereof |
| CN109755610A (en) * | 2019-03-15 | 2019-05-14 | 郑州正方科技有限公司 | Closed air-cooled fuel cell |
| CN113161589A (en) * | 2021-04-01 | 2021-07-23 | 武汉理工大学 | Tail hydrogen treatment device of proton exchange membrane fuel cell |
| CN113161589B (en) * | 2021-04-01 | 2022-08-16 | 武汉理工大学 | Tail hydrogen treatment device of proton exchange membrane fuel cell |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130925 Termination date: 20140507 |