CN101771154A - Fuel cell and integrated anode flow board thereof - Google Patents
Fuel cell and integrated anode flow board thereof Download PDFInfo
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- CN101771154A CN101771154A CN200910002303A CN200910002303A CN101771154A CN 101771154 A CN101771154 A CN 101771154A CN 200910002303 A CN200910002303 A CN 200910002303A CN 200910002303 A CN200910002303 A CN 200910002303A CN 101771154 A CN101771154 A CN 101771154A
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- fuel cell
- plate
- anode flow
- bulge
- cathode runner
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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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Abstract
The invention discloses a fuel cell and an integrated anode flow board thereof. The fuel cell comprises a cathode board, a membrane electrode assembly and the integrated anode flow board, wherein the membrane electrode assembly contacts the cathode board; the membrane electrode assembly comprises an anode flow board and a current collector which are laminated together; and the current collector has a raised structure which is pressed against the membrane electrode assembly. The fuel cell and the integrated anode flow board thereof can prevent the cathode board of the fuel cell module from rising, so the impedance rise and the efficiency reduction of the fuel cell are avoided.
Description
Technical field
The present invention relates to a kind of fuel cell and integrated anode flow board thereof, can effectively promote the usefulness of fuel cell.
Background technology
Fuel cell (Fuel Cell) has low pollution, low noise, high-energy-density and higher advantages such as energy conversion efficiency, is a clean energy, can be widely used in family, means of transportation, military equipment and space industry etc.
Figure 1A, Figure 1B, Fig. 1 C, Fig. 1 D show the assembling mode of known fuel cell module.At first shown in Figure 1A, with anode flow channel plate 100A, stick together material 100C, collector plate 100B and fixed frame 100D is combined into an integrated anode flow board 100 in superimposed mode, the result is shown in Figure 1B, then shown in Fig. 1 C, with this integrated anode flow board 100 with minus plate 120, stick together sheet 140 and mea (Membrane Electrode Assembly, MEA) 160 in superimposed mode, is combined into fuel cell module 10, at last shown in Fig. 1 D.The centre of wherein sticking together sheet 140 is provided with perforate, can make the two sides of mea 160 touch the collector plate 100B of integrated anode flow board 100 and the current collection zone 1201 of minus plate 120 central authorities respectively.
Yet known fuel cell is often found its decreased performance after using a period of time, be necessary the scheme of seeking to improve.
Summary of the invention
In view of this, the present invention sets about from the structural design of fuel cell, improves this problem.
Fuel cell of the present invention comprises a minus plate, a mea and an integrated anode flow board.Wherein mea is contacted with minus plate, and integrated anode flow board comprises that an anode flow channel plate and a collector plate are superimposed together, and this collector plate has a bulge-structure, is connected to mea.
In one embodiment, the anode flow channel plate comprises a plurality of raised lines, is used for the support protrusion structure.
In one embodiment, raised line comprises a plurality of projections, is connected to bulge-structure, and thicker at the projection of anode flow channel plate centre, and is thinner at the projection of both sides, with the shape corresponding to bulge-structure.
In one embodiment, raised line is parallel to each other, and forms runner between raised line, makes fuel flow into mea by runner.
The present invention provides a kind of integrated anode flow board simultaneously, comprises an anode flow channel plate and a collector plate.Wherein collector plate is superimposed on the anode flow channel plate, and has a bulge-structure.
In one embodiment, the anode flow channel plate comprises a plurality of raised lines, is used for the support protrusion structure.
In one embodiment, raised line comprises a plurality of projections, is connected to bulge-structure, and thicker at the projection of anode flow channel plate centre, and is thinner at the projection of both sides, with the shape corresponding to bulge-structure.
In one embodiment, raised line is parallel to each other, and forms runner between raised line, makes fuel can pass through runner.
The present invention provides another kind of fuel cell simultaneously, comprises a fuel cell module and one first cathode runner plate.Wherein fuel cell module comprises that a minus plate, a mea and an integrated anode flow board are superimposed together, and first cathode runner plate has a fin, is connected to minus plate.
In one embodiment, above-mentioned fuel cell also comprises a pressboard, has arc and is connected to cathode runner plate, and fin is pressed to minus plate.
In one embodiment, the material of pressboard spring steel for example.
In one embodiment, above-mentioned fuel cell also comprises a screw rod and a nut, links fuel cell module, first cathode runner plate and pressboard.
The present invention provides another fuel cell simultaneously, comprises a plurality of fuel cell modules and one second cathode runner plate.Wherein each fuel cell module comprises that a minus plate, a mea and an integrated anode flow board are superimposed together each other.Second cathode runner plate is folded between the fuel cell module, comprises a framework and a plurality of fin, and fin is arranged at two of framework, is connected to the minus plate of fuel cell module respectively.
In one embodiment, above-mentioned fuel cell also comprises 2 first cathode runner plates, the double team fuel cell module, and each first cathode runner plate has a fin, is connected to the minus plate of fuel cell module.
In one embodiment, above-mentioned fuel cell also comprises two pressboards, double team first cathode runner plate, and at least one pressboard has arc and is connected to the first corresponding cathode runner plate, and the fin of first cathode runner plate is pressed to minus plate.
In one embodiment, the material of pressboard for example is a spring steel.
In one embodiment, above-mentioned fuel cell also comprises a screw rod and a nut, links this fuel cell module, first cathode runner plate, second cathode runner plate and this pressboard.
For above-mentioned purpose, feature and the advantage that makes the present invention can become apparent, preferred embodiment cited below particularly and conjunction with figs. elaborate.
The present invention can prevent that the minus plate of fuel cell module from protruding phenomenon taking place, and then avoids the impedance of fuel cell to rise, and usefulness descends.
Description of drawings
Figure 1A, Figure 1B, Fig. 1 C, Fig. 1 D show the assembling mode of known fuel cell module.
Fig. 2 is the constitutional diagram according to first embodiment of fuel cell of the present invention.
Fig. 3 is the exploded view according to the fuel cell of Fig. 2.
Fig. 4 A is the schematic diagram according to the anode flow channel plate of Fig. 3.
Fig. 4 B is the partial enlarged drawing of the anode flow channel plate of Fig. 4 A.
Fig. 5 is the schematic diagram according to the collector plate of Fig. 3.
Fig. 6 A is the VI-VI cutaway view according to the fuel cell module of Fig. 2.
Fig. 6 B is the partial enlarged drawing of Fig. 6 A.
Fig. 7 is the exploded view according to second embodiment of fuel cell of the present invention.
Fig. 8 is the exploded view according to the 3rd embodiment of fuel cell of the present invention.
Fig. 9 is the schematic diagram according to second cathode runner plate of Fig. 8.
Description of reference numerals in the above-mentioned accompanying drawing is as follows:
Known technology
10～fuel cell module; 100～integrated anode flow board;
100A～anode flow channel plate; 100B～collector plate;
100C～stick together material; 100D～fixed frame;
120～minus plate; 140～stick together sheet;
160～mea; 1201～current collection zone.
The present invention
20～fuel cell module; 200～integrated anode flow board;
200A～anode flow channel plate; 200B～collector plate;
200C～stick together material; 200D～fixed frame;
220～minus plate; 240～stick together sheet;
260～mea; 2002～raised line;
2004～projection; 2006～bulge-structure;
30～fuel cell module; 320～minus plate;
40～the first cathode runner plates; 402～fin;
50～pressboard; 60～screw rod;
70～nut; 80～the second cathode runner plates;
802～framework; 804～fin.
Embodiment
As previously mentioned, conventional fuel cell is after using a period of time, and its performance will descend.The back is found after deliberation, because it is compact that fuel cell requires, therefore all material all uses polymer composite, after the process long-time operation, the situation of projection can take place in the minus plate 120 of fuel cell (consulting Fig. 1 C), cause contact impedance to rise, thereby cause fuel cell performance to descend.So the present invention sets about from structural design, improve this problem.
Please consult Fig. 2 and Fig. 3 simultaneously, Fig. 2 is the constitutional diagram according to first embodiment of fuel cell of the present invention, and Fig. 3 be the exploded view according to the fuel cell of Fig. 2, must attention Fig. 3 is an end view but not cutaway view.As shown in the figure, fuel cell module 20 by an integrated anode flow board 200, two minus plates 220, a plurality ofly stick together sheet 240 and two mea 260 are formed by stacking, wherein integrated anode flow board 200 comprises an anode flow channel plate 200A, a plurality of material 200C, two collector plate 200B and two fixed frame 200D of sticking together.
See also Fig. 4 A and Fig. 4 B, Fig. 4 B is the partial enlarged drawing of the anode flow channel plate 200A of Fig. 4 A.The surface of anode flow channel plate 200A is provided with a plurality of parallel raised lines 2002, forms runner between raised line 2002, makes fuel can pass through to flow into mea 260.In addition, raised line 2002 is provided with the projection 2004 of a plurality of variable thickness.
See also Fig. 5, Fig. 5 is the stereogram of the collector plate 200B of integrated anode flow board 200.As shown in the figure, collector plate 200B is also non-planar, but has a bulge-structure 2006.
Please consult Fig. 6 A and Fig. 6 B simultaneously, Fig. 6 A is the VI-VI cutaway view according to the fuel cell module of Fig. 2, and Fig. 6 B is the partial enlarged drawing of Fig. 6 A.As shown in the figure, collector plate 200B is connected to mea 260, because collector plate 200B has bulge-structure 2006, makes originally the compressing that is subjected to bulge-structure 2006 for plane mea 260 and minus plate 220 swell distortion.Minus plate 220 suffers oppression and produces predeformation, in this case, fuel cell is through after the long-time operation, minus plate 220 will can further not be out of shape, adding collector plate 200B utilizes its bulge-structure 2006 to be connected to mea 260, make to keep all the time between mea 260 and the collector plate 200B contacting closely that therefore can effectively avoid the impedance of fuel cell to rise, usefulness descends.
In addition, anode flow channel plate 200A all is provided with projection 2004 on each raised line 2002, be used to support collector plate 200B, can guarantee the tight contact between mea 260 and the collector plate 200B.The thickness that must note each projection 2004 is also inequality, and is thicker at the projection 2004 of anode flow channel plate 200A centre, and both sides are thinner, and this is the shape for the bulge-structure 2006 that cooperates collector plate 200B.
See also Fig. 7, Fig. 7 is the exploded view according to second embodiment of fuel cell of the present invention.As shown be fuel cell combination (Assembly), it includes a fuel cell module 30,2 first cathode runner plates 40 and two pressboards 50, and each element is described below:
First cathode runner plate 40 is provided with several parallel ribs 402 towards the surface of fuel cell module 30, fin 402 will be connected to the minus plate 320 of fuel cell module 30 when assembling.
In the present embodiment, by the butt of fin 402, can prevent that the minus plate 320 of fuel cell module 30 from protruding phenomenon taking place, and then avoid the impedance of fuel cell to rise that usefulness descends.In addition, by the pressurization of pressboard 50, can also promote the power density of fuel cell.
If improve the output voltage of fuel cell, then can be with a plurality of fuel cell module series connection.See also Fig. 8, Fig. 8 is the exploded view according to the 3rd embodiment of fuel cell of the present invention, it shown in the figure fuel cell stack (Stack), it includes a plurality of fuel cell modules 30,2 first cathode runner plates 40, a plurality of second cathode runner plate 80 and two pressboards 50, and each element is described below:
Outmost is two pressboards 50, has arc and is connected to first cathode runner plate 40 inwardly.Pressboard 50 can be that (for example) spring steel or other materials with favorable elasticity are made.
First cathode runner plate 40 is provided with several parallel ribs 402 towards the surface of fuel cell module 30, fin 402 will be connected to the minus plate of fuel cell module 30 when assembling.
See also Fig. 9, Fig. 9 is the schematic diagram of second cathode runner plate 80.Second cathode runner plate 80 has a framework 802, all is provided with fin 804 in two faces of framework 802, is connected to fuel cell module 30 simultaneously.
In the present embodiment, by the butt of fin 402,804, can prevent that the minus plate of fuel cell module 30 from protruding phenomenon taking place, and then avoid the impedance of fuel cell to rise, usefulness descends.
More than fuel cell of the present invention is described with first, second and third embodiment; wherein the design of first embodiment is fit to be applied to the fuel cell of low wattage; and the design of second and third embodiment is fit to be applied to the fuel cell of high wattage; yet the present invention is not limited to three embodiment of above introduction; those of ordinary skill in any its affiliated technical field; without departing from the spirit and scope of the present invention; when can changing arbitrarily and retouching, so protection scope of the present invention is as the criterion when looking appended the scope that claim defined.
Claims (17)
1. fuel cell comprises:
One minus plate;
One mea is contacted with this minus plate;
One integrated anode flow board comprises that an anode flow channel plate and a collector plate are superimposed together, and this collector plate has a bulge-structure, is connected to this mea.
2. fuel cell as claimed in claim 1, wherein this anode flow channel plate comprises a plurality of raised lines, supports this bulge-structure.
3. fuel cell as claimed in claim 2, wherein said a plurality of raised line comprises that a plurality of projections are connected to this bulge-structure, and thicker at described a plurality of projections of this anode flow channel plate centre, thinner at described a plurality of projections of both sides, with shape corresponding to this bulge-structure.
4. fuel cell as claimed in claim 2, wherein said a plurality of raised lines are parallel to each other, and form runner between described a plurality of raised lines, make fuel flow into this mea by this runner.
5. integrated anode flow board comprises:
One anode flow channel plate;
One collector plate, superimposed on this anode flow channel plate, this collector plate has a bulge-structure.
6. integrated anode flow board as claimed in claim 5, wherein this anode flow channel plate comprises a plurality of raised lines, supports this bulge-structure.
7. integrated anode flow board as claimed in claim 6, wherein said a plurality of raised line comprises that a plurality of projections are connected to this bulge-structure, and thicker at described a plurality of projections of this anode flow channel plate centre, thinner at described a plurality of projections of both sides, with shape corresponding to this bulge-structure.
8. integrated anode flow board as claimed in claim 6, wherein said a plurality of raised lines are parallel to each other, and form runner between described a plurality of raised lines, make fuel can pass through this runner.
9. fuel cell comprises:
One fuel cell module comprises that a minus plate, a mea and an integrated anode flow board are superimposed together;
One first cathode runner plate has a fin, is connected to this minus plate.
10. fuel cell as claimed in claim 9, it also comprises a pressboard, has arc and is connected to this cathode runner plate, and this fin is pressed to this minus plate.
11. fuel cell as claimed in claim 10, wherein the material of this pressboard comprises spring steel.
12. fuel cell as claimed in claim 10, it also comprises a screw rod and a nut, links this fuel cell module, this first cathode runner plate and this pressboard.
13. a fuel cell comprises:
A plurality of fuel cell modules, each fuel cell module comprise that a minus plate, a mea and an integrated anode flow board are superimposed together;
One second cathode runner plate is folded between described a plurality of fuel cell module, comprises a framework and a plurality of fin, and described a plurality of fins are arranged at two of this framework, is connected to the minus plate of described a plurality of fuel cell modules respectively.
14. fuel cell as claimed in claim 13, it also comprises 2 first cathode runner plates, the described a plurality of fuel cell modules of double team, and each first cathode runner plate has a fin, is connected to the minus plate of described a plurality of fuel cell modules.
15. fuel cell as claimed in claim 14, it also comprises two pressboards, described first cathode runner plate of double team, and at least one pressboard has arc and is connected to the first corresponding cathode runner plate, and the fin of this first cathode runner plate is pressed to this minus plate.
16. fuel cell as claimed in claim 15, the material of wherein said pressboard comprises spring steel.
17. fuel cell as claimed in claim 15, it also comprises a screw rod and a nut, links described a plurality of fuel cell module, described first cathode runner plate, this second cathode runner plate and described pressboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910002303A CN101771154A (en) | 2009-01-04 | 2009-01-04 | Fuel cell and integrated anode flow board thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910002303A CN101771154A (en) | 2009-01-04 | 2009-01-04 | Fuel cell and integrated anode flow board thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101771154A true CN101771154A (en) | 2010-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910002303A Pending CN101771154A (en) | 2009-01-04 | 2009-01-04 | Fuel cell and integrated anode flow board thereof |
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|---|---|
| CN (1) | CN101771154A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216723A (en) * | 2017-07-03 | 2019-01-15 | 松下知识产权经营株式会社 | Fuel cell |
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2009
- 2009-01-04 CN CN200910002303A patent/CN101771154A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216723A (en) * | 2017-07-03 | 2019-01-15 | 松下知识产权经营株式会社 | Fuel cell |
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Open date: 20100707 |