CN100429818C - Fuel battery pile - Google Patents
Fuel battery pile Download PDFInfo
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- CN100429818C CN100429818C CNB2005100631423A CN200510063142A CN100429818C CN 100429818 C CN100429818 C CN 100429818C CN B2005100631423 A CNB2005100631423 A CN B2005100631423A CN 200510063142 A CN200510063142 A CN 200510063142A CN 100429818 C CN100429818 C CN 100429818C
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- Prior art keywords
- plate
- fuel cell
- hole
- end plate
- fuel
- Prior art date
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- Expired - Fee Related
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- 239000000446 fuel Substances 0.000 title claims abstract description 88
- 239000012528 membrane Substances 0.000 claims abstract description 25
- 238000009792 diffusion process Methods 0.000 claims description 20
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 4
- 230000001788 irregular Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 7
- 239000007795 chemical reaction product Substances 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 239000007789 gas Substances 0.000 description 9
- 230000001590 oxidative effect Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000007800 oxidant agent Substances 0.000 description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000003487 electrochemical reaction Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
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- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000036647 reaction Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 229920006351 engineering plastic Polymers 0.000 description 1
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- 238000004880 explosion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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- 239000010439 graphite Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- 229920000728 polyester Polymers 0.000 description 1
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- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
Images
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
Landscapes
- Fuel Cell (AREA)
Abstract
The present invention relates to a fuel cell stack which comprises an end plate, a current guide plate, a plurality of bipolar plates, a plurality of membrane electrodes, sealing washers, bolts and screw caps, wherein the end plate, the current guide plate, each bipolar plate and each membrane electrode are respectively provided with a center hole. The end plate is provided with a connector. The bipolar plate is provided with a through hole corresponding to the connecter. Around the through hole on the front side of the bipolar plate, the sealing washers are arranged, and the periphery of the center hole on the reverse side and the outer periphery of the plate are provided with the sealing washers. The current guide plate and the membrane electrode are respectively provided with holes corresponding to the connector and the through hole. Each screw cap is provided with an opening. The fuel cell stack provided by the present invention not only realizes the separation of the bolt and a fuel channel, and consequently, the bolt can not be corroded and the fuel can not be polluted. Simultaneously, an anode flow field and a cathode flow field have no dead zone part, which causes reaction products and nonreactants to be eliminated duly. Moreover, the present invention has the advantages of simple structure, easy realization, high volume power density, wide adaptive range, etc.
Description
Technical field
The present invention relates to fuel cell field, relate in particular to a kind of fuel cell pack.
Background technology
Fuel cell is a kind of chemical energy to be converted into the device of electric energy, and it has the efficient height, characteristics such as pollutes and noise is low few.Fuel cell can be an individual fuel cells, also can be the fuel battery that is made of a plurality of individual fuel cells.
Individual fuel cells generally comprises proton exchange membrane 1, anode 2, negative electrode 3 and guide plate 4, as shown in Figure 1.
Proton exchange membrane 1 is a kind of permeable air-locked pellicle, and it has the proton conduction effect, can also prevent oxidant and fuel generation mixed explosion.
Negative electrode 3 also is a kind of gas-diffusion electrode, and its formation is identical with anode construction, and difference is that the catalyst between negative electrode 3 and the proton exchange membrane 1 is the catalytic cathode catalyst for reaction.This cathod catalyst is generally the platinum powder end, loads on the platinum powder end on the carrier.
The outside of anode 2 and negative electrode 3 is a guide plate 4, and guide plate 4 can be made by graphite material or metal material.
In fuel cell, generally use air or oxygen as oxidant, hydrogen or methyl alcohol, ethanol etc. are as fuel.For example, be fuel with methyl alcohol, air is as oxidant, and following reaction takes place in fuel cell when carrying out electrochemical reaction:
Positive C H
3OH+H
2O → CO
2+ 6H
++ 6e (1)
Negative electrode 3/2O
2+ 6H
++ 6e → 3H
2O, (2)
Anode and negative electrode cause following overall reaction to take place:
CH
3OH+3/2O
2→CO
2+2H
2O (3)
The above-mentioned electrochemical reaction of anode 2 and negative electrode 3 makes between anode 2 and the negative electrode 3 and produces potential difference, and the electronics that anode 2 generates is caught by negative electrode 3 at last by anode 2 outer field guide plate 4 and external current conductor.The proton that anode 2 generates then sees through proton exchange membrane 1 and is directly passed to negative electrode 3, has so just formed electric current.Voltage during the individual fuel cells operate as normal in order to obtain higher voltage and power, often is together in series above-mentioned individual fuel cells in actual applications and forms the form of battery pile between 0.3V～1.0V.
Disclosed among existing fuel cell pack such as the patent CN1374714A, comprise end plate 5, a plurality of element cells 6 are arranged on the fuel distribution header 7 at element cell 6 centers, pass the bolt 8 of described fuel distribution header 7, and nut 9.Wherein, described element cell 6 comprises electrolyte membrane 10, lays respectively at the oxygen electrode 11 and the fuel electrode 12 of described electrolyte membrane 10 both sides, is positioned at the flow-field plate 13 in oxygen electrode 11 outsides and lays respectively at described flow-field plate 13 and the demarcation strip 14 in fuel electrode 12 outsides, as shown in Figure 2.
Fuel distribution header 7 in this fuel cell pack is attached on the bolt 8, and therefore when fuel was organic-fuel, use can cause the corrosion of bolt 8 and the pollution of fuel for a long time, and for the sealing of fuel higher requirement is arranged also.
Simultaneously, its cathode flow field has " dead band " (i.e. " dead-end " part) for the sealing flow field in inside, flow field, be unfavorable for the diffusion of oxidant and the discharge of product water.If oxidant uses air, then also can cause the enrichment of nitrogen in " dead band " of inside, flow field part.And its anode flow field is similarly the sealing flow field, also can form " dead band " in inside, flow field, and the inlet and outlet piping of fuel is same pipeline, does not have power can make fuel diffusion arrive the anode surface of fuel cell.And " dead band " of anode flow field part can not be in time gets rid of the water of coming from the negative electrode reverse osmosis, thereby can cause the enrichment of water.If organic-fuels such as fuel use methyl alcohol, then the product C O that generates at anode
2Equally can be in " dead band " in flow field part enrichment.These all can cause the reduction with battery performance of reducing of cell reaction area.
Summary of the invention
The bolt that the present invention is directed in the fuel cell pack of prior art is corroded easily, the fuel vulnerable to pollution, both positive and negative polarity has the shortcoming of " dead band " part in the flow field, provide a kind of bolt can not be corroded, fuel is difficult for contaminated, there is not " dead band " part in the anode and cathode flow field, and simple in structure, the fuel cell pack that assembling is compact.
Fuel cell pack provided by the invention comprises first end plate, second end plate, the first electric current drainage plate, the second electric current drainage plate, bipolar plates, membrane electrode, seal washer, bolt and nut.Wherein, on described first end plate, second end plate, the first electric current drainage plate, the second electric current drainage plate, bipolar plates and the membrane electrode centre bore of the diameter of mutual correspondence greater than the diameter of bolt arranged respectively.First connector and second connector are arranged on described second end plate.First through hole corresponding with first connector and second connector and second through hole are arranged on the described bipolar plates, and the front of bipolar plates is the oxic gas diffusion runner face that is formed with the guiding gutter of therefrom dispersing around the mind-set with straight line or serpentine bend form, reverse side is the fuel diffusion runner face that is formed with rounded or irregular snakelike run-track shaped guiding gutter, seal washer is arranged respectively around first through hole in front and second through hole, around the centre bore of reverse side and the excircle of plate seal washer is also arranged respectively.And have respectively on described second electric current drainage plate and the membrane electrode with described second end plate on first connector and first through hole on second connector and the described bipolar plates and the corresponding hole of second through hole.On the described nut perforate is arranged.
Fuel cell pack provided by the invention has not only been realized separating of bolt and fuel channel, fuel is transmitted in the inside battery sealing under the situation that does not contact bolt, thereby can not corrode bolt, pollution feul.Inlet and outlet piping with fuel separates simultaneously, makes the concentration gradient that forms fuel diffusion on the battery cathode surface to be beneficial to fuel diffusion.And the present invention has the bipolar plates of divergence expression and racetrack honeycomb duct by employing, make the reactive material of fuel cell both positive and negative polarity can diffuse to any one part of battery plus-negative plate respectively equably, owing on the both positive and negative polarity flow field, there is not " dead band " part, make reaction product and non-reactant can both get rid of in time and can not be enriched in certain zone in flow field.Fuel cell pack provided by the invention in addition also has simple structure and is easy to flexibly realize, the volumetric power density height, adapt to wide, advantages such as low price, and just can satisfy different equipment requirements by changing its size and dimension.
Description of drawings
Fig. 1 is an individual fuel cells electrode structure schematic diagram;
Fig. 2 is the structural representation of disclosed fuel cell pack among the patent CN1374714A;
Fig. 3 is the structural representation of fuel cell pack of the present invention;
Fig. 4 is the schematic diagram in bipolar plates of the present invention front;
Fig. 5 is the schematic diagram of bipolar plates reverse side of the present invention;
Fig. 6 is the structural representation of fuel cell pack of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is further illustrated.
According to concrete execution mode of the present invention, as shown in Figure 3, fuel cell pack provided by the invention comprises first end plate 15, second end plate 16, the first electric current drainage plate 17, the second electric current drainage plate 18, bipolar plates 19, membrane electrode 20, seal washer 21, bolt 22 and nut 23.
Wherein, the shape of described first end plate 15, second end plate 16, the first electric current drainage plate 17, the second electric current drainage plate 18, bipolar plates 19 and membrane electrode 20 can be a different shape, as circle, ellipse or polygon, is preferably circle, ellipse or square.The centre bore 38 of the diameter of mutual correspondence greater than described bolt 22 diameters arranged respectively on these plates, and the shape of described centre bore 38 and bolt 22 shapes adapt, and can be different shapes, as circle, ellipse or polygon, are preferably circle, hexagon or square.
Described first end plate 15 and second end plate 16 can adopt materials such as aluminium, stainless steel, titanium or engineering plastics to make, and first connector 28 and second connector 29 are arranged on described second end plate 16, wherein first connector 28 is the import of fuel, and second connector 29 is the outlet of fuel.
Described bipolar plates 19 can adopt graphite or metal material, make as materials such as titanium, stainless steel, gold, silver or copper, and have on the described bipolar plates 19 with described second end plate 16 on first connector 28 and second connector, 29 corresponding first through hole 26 and second through holes 27.
Under the preferable case, the front 24 of described bipolar plates 19 is oxic gas diffusion runner face, and reverse side 25 is a fuel diffusion runner face.Wherein positive 24 for forms by concave surface 31 and convex surface 32 with straight line or the serpentine bend form guiding gutter dispersed all around of mind-set therefrom, and be placed with seal washer 21 respectively around first through hole 26 positive 24 and second through hole 27, to prevent that fuel from leaking to the oxidation air exhaustion, as shown in Figure 4.Reverse side 25 is the circular or irregular snakelike run-track shaped guiding gutter that is formed by concave surface 33 and convex surface 34, and around the centre bore 38 of reverse side 25 and the excircle of plate also be placed with seal washer 21 respectively, be used for fuel is completely cut off, to prevent that fuel diffusion from directly reacting to negative electrode and oxic gas, as shown in Figure 5.
Wherein, seal washer 21 can adopt various elastomeric materials, for example, can be selected from permeability melten gel plastics, rubber, resin, polyurethane, polyester, polyimides, the foamed material one or more.
The described first electric current drainage plate 17 and the second electric current drainage plate 18 can adopt materials such as copper, stainless steel, titanium, silver, gold or graphite to make, and are used for projected current and to extraneous transmission of electric energy.Described membrane electrode 20 is made of cathode diffusion layer, anode diffusion layer, the Catalytic Layer and the proton exchange membrane that load on the diffusion layer, and the material of its composition, structure and each parts is conventionally known to one of skill in the art.And also have respectively on described second electric current drainage plate 18 and the membrane electrode 20 with described second end plate 16 on first connector 28 and first through hole 26 on second connector 29 and the described bipolar plates 19 and second through hole, 27 corresponding holes, these holes of interpenetrating can be different shapes, as circle, ellipse or polygon, be preferably circle, hexagon or square, they have formed first main channel 35 and second main channel 36 for delivery of fuel jointly.
Described bolt 22 is used for passing in proper order the centre bore 38 on described first end plate 15, second end plate 16, the first electric current drainage plate 17, the second electric current drainage plate 18, bipolar plates 19 and the membrane electrode 20, and utilizes 23 pairs of fuel cell packs of nut to carry out fastening.On the described nut 23 perforate 30 is arranged, be used for providing for fuel cell pack the passage of oxidizing gas diffusion, the size of this perforate 30 and the structure of fuel cell pack adapt, and its size can guarantee that at least enough oxic gas pass in and out.The size of described bolt 22 and nut 23 adapts with the structure of corresponding fuel cell pack, and its thickness can guarantee to carry out fastening to battery pile at least.
As oxidizing gas, can enter the inside of fuel cell by free convection as air or oxygen, and to the cathode side diffusion of the bipolar plates of each monoreactant battery, the guiding gutter of therefrom dispersing around the mind-set with straight line or serpentine bend form that is formed by concave surface 31 and convex surface 32 through cathode side is diffused into each part of runner face again, with the fuel generation electrochemical reaction of anode-side.Because described runner is a through hole, therefore can make oxic gas diffuse to arbitrary region, with the required fresh oxic gas of timely postcombustion cell reaction, and with the reaction product and unreacted reactant take the fuel cell runner out of, thereby runner water blockoff and nitrogen enrichment phenomenon can not take place.
And fuel is entered the inside of fuel cell through first main channel 35 by first connector 28, because the inlet and outlet piping of fuel is separated, therefore form the concentration gradient of fuel diffusion on the galvanic anode surface, help the anode-side diffusion of fuel to the bipolar plates of each monoreactant battery, circular or the irregular snakelike run-track shaped guiding gutter that is formed by concave surface 33 and convex surface 34 through anode-side is diffused into each part of runner face again, oxidant generation electrochemical reaction with cathode side, reacted fuel is aggregated into second main channel 36, and second connector 29 from second end plate 16 flows out fuel cell packs at last.In this process,, therefore can not cause product CO owing on the flow field, there is not " dead band " part
2Enrichment on runner.
The assembling of fuel cell provided by the present invention can realize by following process: at first that nut 23 and bolt 22 is fixing, then with first end plate 15, the first electric current drainage plate 17, several bipolar plates 19 and membrane electrode 20, the second electric current drainage plate 18 and second end plate, 16 orders are connected on the bolt 22, in this process, must be noted that the through hole that guarantees on several bipolar plates 19 and the membrane electrode 20 and the second electric current drainage plate 18 connects with first connector 28 and second connector 29 respectively, last tightening nuts 23 is finished assembling.
Fig. 6 is the structural representation of the fuel cell pack of another execution mode of the present invention.In this execution mode, oxidant does not adopt the form of oxic gas convection current, and uses blower fan 37 air feed.Blower fan 37 is installed in the outside of a nut 23, simultaneously, forms or do not form perforate 30 on another nut 23 relative with blower fan 37.The others of present embodiment are identical with the execution mode shown in Fig. 3, and therefore fuel cell pack provided by the invention can also comprise the blower fan 37 in the outside that is installed in nut 23.
Claims (5)
1. fuel cell pack, it is characterized in that, this fuel cell pack comprises first end plate (15), second end plate (16), the first electric current drainage plate (17), the second electric current drainage plate (18), a plurality of bipolar plates (19), a plurality of membrane electrode (20), seal washer (21), bolt (22) and nut (23), on wherein said first end plate (15), second end plate (16), the first electric current drainage plate (17), the second electric current drainage plate (18), bipolar plates (19) and the membrane electrode (20) centre bore (38) is arranged respectively; First connector (28) and second connector (29) are arranged on described second end plate (16); Have on the described bipolar plates (19) and first connector (28) and corresponding first through hole of second connector (29) (26) and second through hole (27), and first through hole (26) and second through hole (27) in the front (24) of described bipolar plates (19) have seal washer (21) on every side respectively, the centre bore (38) of reverse side (25) on every side and the excircle of plate seal washer (21) is arranged respectively; Have respectively on described second electric current drainage plate (18) and the membrane electrode (20) with described second end plate (16) on first connector (28) and first through hole (26) on second connector (29) and the described bipolar plates (19) and the corresponding hole of second through hole (27); Perforate (30) is arranged on the described nut (23).
2. fuel cell pack according to claim 1 is characterized in that, the front (24) of described bipolar plates (19) is for being formed with the oxic gas diffusion runner face of the guiding gutter of therefrom dispersing around the mind-set with straight line or serpentine bend form.
3. fuel cell pack according to claim 1 is characterized in that, the reverse side (25) of described bipolar plates (19) is for being formed with the fuel diffusion runner face of rounded or irregular snakelike run-track shaped guiding gutter.
4. fuel cell pack according to claim 1, it is characterized in that the diameter of the centre bore (38) on described first end plate (15), second end plate (16), the first electric current drainage plate (17), the second electric current drainage plate (18), bipolar plates (19) and the membrane electrode (20) is greater than the diameter of bolt (22).
5. fuel cell pack according to claim 1, it is characterized in that, described fuel cell pack also comprises the blower fan (37) that is installed in described nut (23) outside, and another nut (23) relative with described blower fan (37) gone up and formed or do not form perforate (30).
Priority Applications (15)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100631423A CN100429818C (en) | 2005-04-05 | 2005-04-05 | Fuel battery pile |
| US11/910,865 US7846608B2 (en) | 2005-04-05 | 2006-03-29 | Flow-field plate and fuel cell stack using the same |
| PCT/CN2006/000540 WO2006105714A1 (en) | 2005-04-05 | 2006-03-29 | Flow-field plate and fuel cell stack using the same |
| DE602006014388T DE602006014388D1 (en) | 2005-04-05 | 2006-03-29 | FLOW FIELD PLATE AND FUEL CELL STACK WITH IT |
| KR1020077025665A KR100889105B1 (en) | 2005-04-05 | 2006-03-29 | Flow-field plate and fuel cell stack using the same |
| AT06722192T ATE468622T1 (en) | 2005-04-05 | 2006-03-29 | FLOW FIELD PLATE AND FUEL CELL STACK WITH IT |
| US11/910,830 US20080305382A1 (en) | 2005-04-05 | 2006-03-29 | Flow-Field Plate and Fuel Cell Stack Using the Same |
| DE602006009240T DE602006009240D1 (en) | 2005-04-05 | 2006-03-29 | |
| KR1020077024498A KR100887274B1 (en) | 2005-04-05 | 2006-03-29 | Flow-field plate and fuel cell stack using the same |
| EP06722192A EP1875542B1 (en) | 2005-04-05 | 2006-03-29 | Flow-field plate and fuel cell stack using the same |
| PCT/CN2006/000541 WO2006105715A1 (en) | 2005-04-05 | 2006-03-29 | Flow-field plate and fuel cell stack using the same |
| AT06722193T ATE443350T1 (en) | 2005-04-05 | 2006-03-29 | FLOW FIELD PLATE AND FUEL CELL STACK WITH IT |
| EP06722193A EP1872428B1 (en) | 2005-04-05 | 2006-03-29 | Flow-field plate and fuel cell stack using the same |
| JP2008504604A JP5017255B2 (en) | 2005-04-05 | 2006-03-29 | Fuel cell stack |
| JP2008504605A JP5081808B2 (en) | 2005-04-05 | 2006-03-29 | Flow field plate and fuel cell stack using the flow field plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100631423A CN100429818C (en) | 2005-04-05 | 2005-04-05 | Fuel battery pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1848505A CN1848505A (en) | 2006-10-18 |
| CN100429818C true CN100429818C (en) | 2008-10-29 |
Family
ID=37077966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100631423A Expired - Fee Related CN100429818C (en) | 2005-04-05 | 2005-04-05 | Fuel battery pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100429818C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008106824A1 (en) * | 2007-03-06 | 2008-09-12 | Golden Energy Fuel Cell Co., Ltd. | Fuel cell |
| CN111403788A (en) * | 2020-03-23 | 2020-07-10 | 珠海格力电器股份有限公司 | Fuel cell stack structure and fuel cell with same |
| CN113451600A (en) * | 2021-06-18 | 2021-09-28 | 深圳职业技术学院 | Annular cathode open type air-cooled fuel cell with embedded air duct |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08148178A (en) * | 1994-11-25 | 1996-06-07 | Ishikawajima Harima Heavy Ind Co Ltd | Cylindrical fuel cell |
| CN1374714A (en) * | 2001-03-09 | 2002-10-16 | 大同金属工业株式会社 | Portable fuel cell stacking material |
| CN1564360A (en) * | 2004-04-14 | 2005-01-12 | 清华大学 | Self-breathing portable power supply |
-
2005
- 2005-04-05 CN CNB2005100631423A patent/CN100429818C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08148178A (en) * | 1994-11-25 | 1996-06-07 | Ishikawajima Harima Heavy Ind Co Ltd | Cylindrical fuel cell |
| CN1374714A (en) * | 2001-03-09 | 2002-10-16 | 大同金属工业株式会社 | Portable fuel cell stacking material |
| CN1564360A (en) * | 2004-04-14 | 2005-01-12 | 清华大学 | Self-breathing portable power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1848505A (en) | 2006-10-18 |
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