CN102117921A - Flow field plate - Google Patents
Flow field plate Download PDFInfo
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- CN102117921A CN102117921A CN2010101740503A CN201010174050A CN102117921A CN 102117921 A CN102117921 A CN 102117921A CN 2010101740503 A CN2010101740503 A CN 2010101740503A CN 201010174050 A CN201010174050 A CN 201010174050A CN 102117921 A CN102117921 A CN 102117921A
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- Prior art keywords
- flow
- field plate
- divergent road
- runner
- divergent
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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 provides a flow field plate arranged inside a fuel cell device, which comprises at least one flow channel, a first manifold and a second manifold.The first manifold and the second manifold formed inside the flow field plate are approximately parallel to the central shaft of the flow field plate.The reaction fluid flows into the first manifold via one end of the flow field plate and enters into the second manifold by passing through the above flow channel.Then the reaction fluid is discharged out of the flow field plate via the other end of the flow field plate.
Description
Technical field
The present invention is relevant for a kind of flow-field plate, particularly relevant for a kind of flow-field plate that is arranged in the fuel-cell device.
Background technology
At first see also Fig. 4, existing Proton Exchange Membrane Fuel Cells (Proton Exchange MembraneFuel Cell, PEMFC) single-cell structure (single cell) 200 mainly comprises a mea 210 (membrane electrode assembly, MEA), two gas diffusion layers 205,206 (gas diffusionlayer, GDL) and two flow-field plate 201,202 (fluid flow plate).The inner surface of aforementioned flow-field plate 201,202 is formed with separately independently runner (flow channel) 203,204 respectively, can be in order to carry out the conveying of reacting fluid, aforementioned mea 210 mainly comprises a proton exchange membrane 209, anode (anode) catalyst layer 207 and negative electrode (cathode) catalyst layer 208, wherein catalyst layer 207,208 has compositions such as platinum or platinum alloy usually, is beneficial to fuel cell and carries out electrochemical reaction (electrochemicalreactions) and electric power output is provided.
In the flow-field plate of general small fuel cell, the common relatively large fuel cell of the size in its runner and divergent road is more tiny, so the flow resistance of reacting fluid improves relatively, the flow rate and the CONCENTRATION DISTRIBUTION that so will cause entering flow-field plate internal reaction fluid are inhomogeneous, and then influence the usefulness of fuel cell.In view of this, how to improve existing flow-field plate upper runner and divergent road structural design, make reacting fluid can be delivered to each zone on the flow-field plate equably, and then lifting fuel cell overall usefulness is the important topic that becomes the fuel cell miniaturization.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of flow-field plate, can promote fuel cell overall usefulness.
One embodiment of the invention provide a kind of flow-field plate, are arranged in the fuel-cell device, comprise at least one runner, one first divergent road and one second divergent road.The aforementioned first divergent road is formed at flow-field plate inside, and is roughly parallel to a central axis direction of flow-field plate, and wherein the first divergent road communicates with aforementioned runner.The aforementioned second divergent road is formed at flow-field plate inside, and be roughly parallel to central axis direction, and wherein the second divergent road communicates with runner respectively, and wherein a reacting fluid enters flow-field plate by the first divergent road, and entering the second divergent road through aforementioned runner, reacting fluid is again by the second divergent road discharge currents field plate then.
In one embodiment, aforementioned flow-field plate also comprises a body, one first member and one second member, and aforementioned runner is formed at body surface, and first, second divergent road is formed at respectively on first, second member.
In one embodiment, aforementioned first, second member has a strip structure respectively, and is incorporated into the opposition side of body.
In one embodiment, aforementioned first, second member has a ㄇ font structure respectively.
In one embodiment, aforementioned flow-field plate also comprises a plurality of runners, and wherein flow-field plate is made up of a plurality of flow-field plate unit, and aforementioned flow-field plate unit interconnects along central axis direction, and aforementioned runner is formed at respectively on the flow-field plate unit.
In one embodiment, aforementioned flow-field plate also comprises a plurality of soft conduits, in order to connect aforementioned flow-field plate unit.
In one embodiment, aforementioned flow-field plate unit has a first passage and a second channel respectively, and wherein first, second passage runs through the flow-field plate unit, and adjacent first passage interconnects, and adjacent second channel interconnects.
In one embodiment, the aforementioned first divergent road has a breach, aforementioned breach with respect to the pairing angle in a cross section geometric center in the first divergent road between 0 °～90 °.
In one embodiment, the aforementioned second divergent road has a breach, aforementioned breach with respect to the pairing angle in a cross section geometric center in the second divergent road between 0 °～90 °.
In one embodiment, aforementioned flow-field plate also comprises a plurality of runners, and aforementioned runner is arranged along central axis direction.
The divergent road of first, second of flow-field plate of the present invention is formed at flow-field plate inside, can reduce flow resistance thus, make the reaction stream physical efficiency be transported to each zone of flow-field plate rapidly and effectively, simultaneously can avoid the CONCENTRATION DISTRIBUTION inequality of reacting fluid in flow-field plate, and then promote the overall efficiency of fuel-cell device.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly also cooperates appended accompanying drawing to elaborate.
Figure 1A represents the flow-field plate schematic diagram of the flat fuel-cell device of one embodiment of the invention;
Figure 1B represents the cutaway view of the flow-field plate among Figure 1A;
Fig. 1 C represents the partial sectional view of the flow-field plate among Figure 1A;
Fig. 2 A represents the flow-field plate schematic diagram of the flat fuel-cell device of another embodiment of the present invention;
Flow-field plate cutaway view among Fig. 2 B presentation graphs 2A;
Fig. 2 C represents the flow-field plate schematic diagram of the flat fuel-cell device of another embodiment of the present invention;
Fig. 3 A represents the flow-field plate schematic diagram of the flat fuel-cell device of another embodiment of the present invention;
Flow-field plate end view among Fig. 3 B presentation graphs 3A;
Fig. 3 C represents the flow-field plate schematic diagram of the flat fuel-cell device of another embodiment of the present invention; And
Fig. 4 represents the single-cell structure schematic diagram of existing Proton Exchange Membrane Fuel Cells.
[main element symbol description]
1: the flow-field plate unit
10: flow-field plate
101: first end
102: the second end
110: breach
11: the first divergent roads
111: first passage
1110: the first protuberances
112: second channel
1120: the second protuberances
12: the second divergent roads
13: body
200: single-cell structure
210: mea
205,206: gas diffusion layers
201,202: flow-field plate
203,204: runner
209: proton exchange membrane
207,208: catalyst layer
A: central shaft
B: obstruction piece
B1, B3: first member
B2, B4: second member
C: runner
T: soft conduit
θ: angle
S1: first side
S2: second side
Embodiment
At first see also Figure 1A, 1B, the flow-field plate 10 of one embodiment of the invention mainly is to be arranged in the flat fuel-cell device, it roughly is a rectangular configuration, be formed with single or a plurality of runner C (flow channel) at the first side S1 of flow-field plate 10, these external flow-field plate 10 inside are formed with one first divergent road 11 and one second divergent road 12 in addition.Shown in Figure 1A, aforementioned runner C arranges and is revealed in the first side S1 of flow-field plate 10 along a central shaft A direction of flow-field plate 10, aforementioned first, second 11,12 inside that are formed in flow-field plate 10, divergent road, and be roughly parallel to central shaft A, wherein first, second divergent road 11,12 communicates with each runner C respectively.
What need special instruction is, one reacting fluid of aforementioned fuel cells device (reactant fluid) can be entered the first divergent road 11 by the first end 101 of flow-field plate 10, then carry out importing the second divergent road 12 again after the electrochemical reaction last the second end 102 discharge currents field plates 10 (shown in the direction of arrow among Figure 1A, the 1B) by flow-field plate 10 through aforementioned runner C.Because the divergent road 11,12 of first, second of present embodiment is formed at flow-field plate 10 inside and extends along the central shaft A of flow-field plate 10 direction, flow resistance can be reduced thus avoiding the CONCENTRATION DISTRIBUTION inequality of reacting fluid in flow-field plate 10, and then the usefulness of fuel-cell device can be promoted.
See also Fig. 1 C again, the first divergent road 11 in the present embodiment has a circular cross-section, and in addition, the lower-left side in the first divergent road 11 is formed with a breach 110, and wherein breach 110 and runner C communicate.Shown in Fig. 1 C, aforementioned breach 110 with respect to the pairing angle θ in cross section geometric center in the first divergent road 11 approximately between 0 °～90 °.In like manner, the second divergent road 12 also can form and aforementioned breach 110 similar structures, wherein, the breach in the second divergent road 12 with respect to its pairing angle in cross section geometric center equally between 0 °～90 °.
Then see also Fig. 2 A, 2B, the flow-field plate 10 of another embodiment of the present invention mainly comprises a body 13, one first member B1 and one second member B2, wherein be formed with single or a plurality of runner C on a surface of body 13, first, second 11,12 in divergent road is formed at first, second member B1, B2 inside respectively.Shown in Fig. 2 A, 2B, aforementioned first, second member B1, the roughly elongated structure of B2, and can be incorporated into the upper and lower both sides of body 13 respectively, make runner C and first, second divergent road 11,12 communicate.Will be appreciated that the flow-field plate 10 in the present embodiment can make the reaction stream physical efficiency be transported to each zone of flow-field plate 10 rapidly and effectively by aforementioned first, second divergent road 11,12 and runner C, uses the usefulness that promotes fuel-cell device.
See also Fig. 2 C again, first, second member B3, B4 in the present embodiment can replace first, second member B1, the B2 among Fig. 2 A, the 2B.Shown in Fig. 2 C, aforementioned first, second member B3, B4 roughly are ㄇ font structure, first, second member B3, B4 can be incorporated into the upper and lower both sides of body 13 during assembling respectively, use and form first, second divergent road 11,12 in the inside of flow-field plate 10 respectively.As previously mentioned, reacting fluid can be entered the first divergent road 11 by the first end 101 of flow-field plate 10, then imports the second divergent road 12 through runner C, discharges (shown in the direction of arrow among Fig. 2 C) by the second end 102 of flow-field plate 10 more at last.
See also Fig. 3 A, 3B, the flow-field plate 10 of another embodiment of the present invention is made up of a plurality of flow-field plate unit 1, aforementioned flow-field plate unit 1 interconnects along central shaft A direction, and each 1 surface, flow-field plate unit all is formed with at least one runner C, wherein also is formed with a first passage 111 and a second channel 112 in each 1 inside, flow-field plate unit.Shown in Fig. 3 A, 3B, aforementioned first, second passage 111,112 runs through flow-field plate unit 1, wherein adjacent first passage 111 interconnects, and adjacent second channel 112 interconnects, and can form first, second the divergent road 11,12 that runs through whole flow-field plate 10 thus.
What need to specify is, the flow-field plate 10 among Fig. 3 A, the 3B also comprises two obstruction piece B, be arranged at respectively flow-field plate 10 second, first end 102,101, use a wherein opening of sealing first, second divergent road 11,12 and leak to avoid fluid.On the other hand, flow-field plate unit 1 in Fig. 3 A, 3B also is formed with one first protuberance 1110 and one second protuberance 1120 respectively, wherein first, second protuberance 1110,1120 connects first, second passage 111,112 respectively, and can by aforementioned first, second protuberance 1110,1120 respectively with adjacent flow field plates unit 1 in first, second passage 111,112 mutually combine; Perhaps, first, second passage 111,112 in the aforementioned adjacent flow field plates unit 1 also can see through soft conduit T respectively and interconnect (shown in Fig. 3 C), uses composition one and has the flow-field plate 10 of a plurality of runner C.
In sum, the invention provides a kind of flow-field plate of flat fuel-cell device, wherein be formed with first, second divergent road, then be formed with at least one runner in addition and on the flow-field plate surface in flow-field plate inside.Reacting fluid can be entered the first divergent road by the first end of flow-field plate, and imports the second divergent road through aforementioned runner, and then is discharged by the second end of flow-field plate.Because aforementioned first, second divergent road is formed at flow-field plate inside, can reduce flow resistance thus, make the reaction stream physical efficiency be transported to each zone of flow-field plate rapidly and effectively, can avoid the CONCENTRATION DISTRIBUTION inequality of reacting fluid in flow-field plate simultaneously, and then promote the overall efficiency of fuel-cell device.
Though the present invention discloses as above with aforesaid embodiment, so it is not in order to limit the present invention.The ordinary technical staff in the technical field of the invention, without departing from the spirit and scope of the present invention, when doing a little change and retouching.Therefore protection scope of the present invention is as the criterion when looking the scope that claims define.
Claims (10)
1. a flow-field plate is characterized in that, is arranged in the fuel-cell device, comprising:
At least one runner;
One first divergent road is formed at this flow-field plate inside, and is roughly parallel to a central axis direction of this flow-field plate, and wherein this first divergent road communicates with this runner; And
One second divergent road, be formed at this flow-field plate inside, and be roughly parallel to this central axis direction, wherein this second divergent road communicates with this runner respectively, wherein a reacting fluid enters this flow-field plate by this first divergent road, and entering this second divergent road through this runner, this reacting fluid is discharged this flow-field plate by this second divergent road then.
2. flow-field plate according to claim 1, it is characterized in that, wherein this flow-field plate also comprises a body, one first member and one second member, and this runner is formed at this body surface, and this first, second divergent road is formed at respectively on this first, second member.
3. flow-field plate according to claim 2 is characterized in that, wherein this first, second member has a strip structure respectively, and is incorporated into the opposition side of this body.
4. flow-field plate according to claim 2 is characterized in that, wherein this first, second member has a ㄇ font structure respectively.
5. flow-field plate according to claim 1, it is characterized in that, wherein this flow-field plate also comprises a plurality of runners, and this flow-field plate is made up of a plurality of flow-field plate unit, wherein those flow-field plate unit interconnect along this central axis direction, and those runners are formed at respectively on those flow-field plate unit.
6. flow-field plate according to claim 5 is characterized in that, wherein this flow-field plate also comprises a plurality of soft conduits, and those soft conduits connect those flow-field plate unit.
7. flow-field plate according to claim 5, it is characterized in that wherein those flow-field plate unit have a first passage and a second channel respectively, this first, second passage runs through this flow-field plate unit, and this adjacent first passage interconnects, and this adjacent second channel interconnects.
8. flow-field plate according to claim 1 is characterized in that, wherein this first divergent road has a breach, this breach with respect to the pairing angle in a cross section geometric center in this first divergent road between 0 °～90 °.
9. flow-field plate according to claim 1 is characterized in that, wherein this second divergent road has a breach, this breach with respect to the pairing angle in a cross section geometric center in this second divergent road between 0 °～90 °.
10. flow-field plate according to claim 1 is characterized in that wherein this flow-field plate also comprises a plurality of runners, and those runners are arranged along this central axis direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US26738709P | 2009-12-07 | 2009-12-07 | |
| US61/267,387 | 2009-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102117921A true CN102117921A (en) | 2011-07-06 |
Family
ID=44216574
Family Applications (9)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010174058XA Withdrawn CN102255093A (en) | 2009-12-07 | 2010-05-06 | Fuel cell device and fuel cell module thereof |
| CN2010101740541A Withdrawn CN102117922A (en) | 2009-12-07 | 2010-05-06 | Flat type fuel cell module and flow field plate thereof |
| CN2010101740503A Withdrawn CN102117921A (en) | 2009-12-07 | 2010-05-06 | Flow field plate |
| CN2010101740698A Withdrawn CN102255094A (en) | 2009-12-07 | 2010-05-06 | Fuel cell device and fuel cell module thereof |
| CN2010105854838A Pending CN102255088A (en) | 2009-12-07 | 2010-12-07 | Fuel cell module |
| CN201010585446.7A Active CN102117924B (en) | 2009-12-07 | 2010-12-07 | Fluid flow plate assembly |
| CN201310215726.2A Active CN103354292B (en) | 2009-12-07 | 2010-12-07 | Fuel cell system |
| CN2010105855671A Pending CN102255099A (en) | 2009-12-07 | 2010-12-07 | Fuel cell system and fuel cell module thereof |
| CN201010585433XA Pending CN102117923A (en) | 2009-12-07 | 2010-12-07 | Fluid flow plate assembly and fuel cell system |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010174058XA Withdrawn CN102255093A (en) | 2009-12-07 | 2010-05-06 | Fuel cell device and fuel cell module thereof |
| CN2010101740541A Withdrawn CN102117922A (en) | 2009-12-07 | 2010-05-06 | Flat type fuel cell module and flow field plate thereof |
Family Applications After (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101740698A Withdrawn CN102255094A (en) | 2009-12-07 | 2010-05-06 | Fuel cell device and fuel cell module thereof |
| CN2010105854838A Pending CN102255088A (en) | 2009-12-07 | 2010-12-07 | Fuel cell module |
| CN201010585446.7A Active CN102117924B (en) | 2009-12-07 | 2010-12-07 | Fluid flow plate assembly |
| CN201310215726.2A Active CN103354292B (en) | 2009-12-07 | 2010-12-07 | Fuel cell system |
| CN2010105855671A Pending CN102255099A (en) | 2009-12-07 | 2010-12-07 | Fuel cell system and fuel cell module thereof |
| CN201010585433XA Pending CN102117923A (en) | 2009-12-07 | 2010-12-07 | Fluid flow plate assembly and fuel cell system |
Country Status (1)
| Country | Link |
|---|---|
| CN (9) | CN102255093A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013200112A1 (en) * | 2013-01-07 | 2014-07-10 | Bayerische Motoren Werke Aktiengesellschaft | Fuel cell with at least one active surface layer |
| CA2818176C (en) * | 2013-02-08 | 2015-11-24 | Veolia Water Solutions & Technologies North America, Inc. | Method of recovering oil and producing produced water that is concentrated and dried by a double drum dryer |
| CN104681830B (en) * | 2013-12-03 | 2017-12-26 | 航天新长征电动汽车技术有限公司 | A kind of fuel cell module packaging body |
| KR102483895B1 (en) * | 2016-01-21 | 2022-12-30 | 삼성전자주식회사 | Electrochemical cell, battery module comprising the same, and battery pack comprising the same |
| CN109461949B (en) * | 2018-09-20 | 2022-04-12 | 中国北方车辆研究所 | Cathode flow field plate for fuel cell and processing method thereof |
| DE102018216099A1 (en) * | 2018-09-21 | 2020-03-26 | Robert Bosch Gmbh | Electrode support device for a fuel cell and / or electrolyzer unit |
| CN111048799B (en) * | 2019-11-22 | 2021-08-03 | 中国第一汽车股份有限公司 | Fuel cell structure |
| CN111697257B (en) * | 2020-05-15 | 2022-02-22 | 西安交通大学 | Integrated on-site hydrolysis hydrogen production and hydrogen fuel cell power generation device and method |
| CN114571643B (en) * | 2022-03-23 | 2022-12-06 | 武汉众宇动力系统科技有限公司 | Glue injection device for injecting glue to flow field plate of fuel cell |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7261798B2 (en) * | 2004-01-28 | 2007-08-28 | Hamilton Sundstrand Corporation | Assembly for maintaining compression for electrical contact of the active area of an electrochemical cell |
| US7323270B2 (en) * | 2004-08-11 | 2008-01-29 | Fuelcell Energy, Inc. | Modular fuel-cell stack assembly |
| JP3847311B2 (en) * | 2004-09-16 | 2006-11-22 | 日東電工株式会社 | Fuel cell manufacturing method and manufacturing equipment |
| DE112005000131T5 (en) * | 2004-10-05 | 2007-02-15 | Dai Nippon Printing Co., Ltd. | Separating device for flat polymer electrolyte fuel cells |
| US7763393B2 (en) * | 2005-05-13 | 2010-07-27 | Hitachi Cable, Ltd. | Fuel cell having electrode channel member with comb-teeth shape |
| US20070292740A1 (en) * | 2006-06-19 | 2007-12-20 | Hsi-Ming Shu | Fuel flow board for fuel cell |
| CN100517835C (en) * | 2006-08-25 | 2009-07-22 | 上海神力科技有限公司 | Pipe-line design for fully using space of integrated fuel cell pile |
| US7638235B2 (en) * | 2006-09-22 | 2009-12-29 | Gm Global Technology Operations, Inc. | Internal proton exchange membrane humidification and cooling with automotive coolant |
| KR100908973B1 (en) * | 2007-09-13 | 2009-07-22 | 삼성에스디아이 주식회사 | Fuel cell system |
| WO2009073453A2 (en) * | 2007-11-30 | 2009-06-11 | Bdf Ip Holdings Ltd. | Electrode supports in fluid distribution plenums in fuel cells |
-
2010
- 2010-05-06 CN CN201010174058XA patent/CN102255093A/en not_active Withdrawn
- 2010-05-06 CN CN2010101740541A patent/CN102117922A/en not_active Withdrawn
- 2010-05-06 CN CN2010101740503A patent/CN102117921A/en not_active Withdrawn
- 2010-05-06 CN CN2010101740698A patent/CN102255094A/en not_active Withdrawn
- 2010-12-07 CN CN2010105854838A patent/CN102255088A/en active Pending
- 2010-12-07 CN CN201010585446.7A patent/CN102117924B/en active Active
- 2010-12-07 CN CN201310215726.2A patent/CN103354292B/en active Active
- 2010-12-07 CN CN2010105855671A patent/CN102255099A/en active Pending
- 2010-12-07 CN CN201010585433XA patent/CN102117923A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN102117924A (en) | 2011-07-06 |
| CN102117922A (en) | 2011-07-06 |
| CN103354292B (en) | 2015-08-12 |
| CN102255088A (en) | 2011-11-23 |
| CN103354292A (en) | 2013-10-16 |
| CN102255099A (en) | 2011-11-23 |
| CN102255094A (en) | 2011-11-23 |
| CN102255093A (en) | 2011-11-23 |
| CN102117924B (en) | 2014-03-19 |
| CN102117923A (en) | 2011-07-06 |
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Open date: 20110706 |