CN109768299A - A kind of waterwheel shape fuel cell flow field board suitable for gas electrode - Google Patents
A kind of waterwheel shape fuel cell flow field board suitable for gas electrode Download PDFInfo
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- CN109768299A CN109768299A CN201811576867.6A CN201811576867A CN109768299A CN 109768299 A CN109768299 A CN 109768299A CN 201811576867 A CN201811576867 A CN 201811576867A CN 109768299 A CN109768299 A CN 109768299A
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- flow field
- runner
- air inlet
- fan
- fuel cell
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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 present invention relates to a kind of waterwheel shape fuel cell flow field boards suitable for gas electrode, including substrate (2), runner, air inlet (7) and gas outlet (8), the runner is fan-shaped runners (5), the air inlet (7) is arranged at flow field center, described fan-shaped runners (5) one end is connected to centrally located air inlet (7), other end connection product collects runner (4), one jiao of setting air inlet secret tunnel in flow-field plate side, reaction gas enters from air inlet secret tunnel, and flow field center is guided into from air inlet (7), then fan-shaped runners (5) diffusion equably around, the product of final each fan-shaped runners (5) is collected runner (4) from product and is expelled directly out with shorter path by gas outlet (8).Compared with prior art, the present invention has process of the reaction gas in flow field shorter, and pressure drop is smaller, and energy consumption reduces, and the water in product is easier to be discharged, while flow field structure is simple, easy to process, is easy to the advantages that producing in batches.
Description
Technical field
The present invention relates to field of fuel cell technology, more particularly, to a kind of waterwheel shape fuel electricity suitable for gas electrode
Pond flow-field plate.
Background technique
Fuel cell because its is environment friendly and pollution-free, can cold-starting, noise is low, energy conversion rate is high the advantages that, it is considered to be
Most potential efficient energy conversion device, flow-field plate therein have an important influence the performance of fuel cell.For fuel
Gas electrode in battery, the effect of flow-field plate are conveying reaction gas, collected currents and provide channel for the discharge of product.Change
The structure and layout of runner in kind flow-field plate, it has also become improve operation of fuel cells efficiency, accelerate fuel cell development and application
Key.
The distribution of the bootable reaction gas of runner in flow-field plate, while the product of electrode reaction can also be discharged.If
Reaction gas is unevenly distributed in electrode surface, it will leads to battery hot-spot；If the water that reaction generates cannot be discharged in time, meeting
Electrode water logging phenomenon is generated, unsmooth, resistance is transmitted so as to cause reaction gas and increases, cannot sufficiently be connect with the catalyst of electrode surface
It touches and reacts, and then lead to the output power reduction or even the termination of battery life of battery.That has developed so far is applicable in
There are snakelike, parallel shape, interdigitated, porous, spiral shape etc. in the main Types of the flow-field plate of fuel cell gas electrode.Patent
US5108849 discloses a kind of serpentine flow field plate, and serpentine flow path is longer, and the pressure difference between runner entrance is larger, air pump loss
It is larger, so that reaction gas, along flow channel length direction concentration distribution unevenness, the electrochemical reaction in turn resulting in electrode surface is uneven
With the reduction of fuel battery performance；Concurrent flow field plate gas flow rate disclosed in patent CN203760566U is low, is unfavorable for porous
The discharge of water in electrode, be easy to cause water blocking phenomenon；Interdigitated stream disclosed in patent CN101431156 and US005300370A
Field plate is more demanding to the admission pressure of gas, needs to further investigate in terms of the distributing uniformity of gas and pressure drop control；Specially
Though porous flow field structure disclosed in sharp CN203607488U is simply but the flow velocity of reaction gas is lower, it is unfavorable for the row of liquid water
Out, easily short circuit；Spiral current field structure disclosed in patent CN103346337A is complex, and runner is longer, will cause reaction
Gas concentration is unevenly distributed, and pressure drop is larger, and battery performance is unstable.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of process is short, pressure drop
It is small, and the waterwheel shape fuel battery flow field suitable for gas electrode that reaction gas is uniformly distributed, reaction product is quickly discharged can be made
Plate introduces reaction gas at flow field center, makes to spread in itself while around runner, with guarantee in flow field the distribution of reaction gas and its
Concentration distribution is more uniform, and the product after reaction is quickly discharged, to improve the performance of fuel cell.
The purpose of the present invention can be achieved through the following technical solutions: a kind of waterwheel shape fuel suitable for gas electrode
Cell flow field plate, including substrate, runner, air inlet and air outlet, the runner are fan-shaped runners, the air inlet setting
At flow field center, described fan-shaped runners one end is connected to centrally located air inlet, and other end connection product collects runner, flowing
One jiao of setting air inlet secret tunnel of field plate side, reaction gas enters from air inlet secret tunnel, and guides flow field center into from air inlet, then
Equably fan-shaped runners diffusion around, the product of final each fan-shaped runners are collected runner from product and are led to shorter path
Gas outlet is crossed to be expelled directly out.
It is the flow field ridge of protrusion between adjacent fan-shaped runners, the angle of fan-shaped runners and the angle ratio of flow field ridge are 1:1-3:
1。
The angle of fan-shaped runners is 5-12 °, and the angle of flow field ridge is 4-10 °, length 3-10cm.
Further, the radius of the air inlet is 0.1-0.25cm.
Further, it is round, rectangular or regular polygon that the product, which collects runner,.
Further, it is flow field that the substrate, which is equipped with the region of runner, and in flow field, sealed groove is arranged in surrounding, will flow
Road is surrounded, and is placed seal washer in sealed groove and be sealed.In end plate, insulation board, collector plate, flow-field plate, electricity
After pole component etc. is assembled into battery, gas leak phenomenon will not be generated.
Further, the material of the substrate uses graphite, stainless steel, aluminium alloy or titanium plate.
Substrate is surrounded by mounting hole, and gas outlet setting collects by runner in product.
The above-mentioned waterwheel shape fuel cell flow field board suitable for gas electrode, the gas electricity being primarily adapted for use in fuel cell
Pole.
Compared with prior art, the invention has the following advantages that
1. the flow-field plate, in flow field air feeding in center, then runner is spread around, it ensure that reaction gas in entire flow field
Be uniformly distributed；
2. the runner design of sector structure makes reaction gas and electrode have bigger contact area for electrode reaction to occur；Fan
The runner design of shape structure makes that process of the reaction gas in flow field is shorter, flow resistance is smaller, pressure drop is lower；
3. the reaction product of each fan-shaped runners is expelled directly out by the runner that collects at its edge, it is not susceptible to runner blocking
With electrode water logging phenomenon.
Above-mentioned advantage is all conducive to the delivery efficiency for increasing the utilization rate of electrode surface, improving battery, extends making for battery
Use the service life.The flow field plate structure is simple, facilitates processing, is easy to produce in batches.
Detailed description of the invention
Fig. 1 is a kind of waterwheel shape fuel cell flow field board suitable for gas electrode: round product collects runner；
Fig. 2 is a kind of waterwheel shape fuel cell flow field board suitable for gas electrode: rectangular product collects runner；
Fig. 3 is a kind of waterwheel shape fuel cell flow field board suitable for gas electrode: regular polygon product collects runner；
Mounting hole 1 shown in figure label, substrate 2, sealed groove 3, product collect runner 4, fan-shaped runners 5, flow field ridge 6,
Air inlet 7, gas outlet 8.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1, a kind of waterwheel shape fuel cell flow field board suitable for gas electrode, including mounting hole 1, substrate 2,
Sealed groove 3, product collect runner 4, fan-shaped runners 5, flow field ridge 6, air inlet 7 and gas outlet 8.The product at edge collects stream
Road 4 is circle, and material used by the substrate 2 of flow-field plate is graphite.The radius that the air inlet 7 at flow field center is arranged is
0.15cm, described 5 one end of fan-shaped runners are connected to centrally located air inlet 7, and other end connection product collects runner 4, adjacent
It is the flow field ridge 6 of protrusion between fan-shaped runners 5, the angle of fan-shaped runners 5 and flow field ridge 6 is 6 °, radius 4cm.In flow-field plate
Air inlet secret tunnel is arranged in the upper left corner of side, guides reaction gas into flow field center by air inlet 7, after reaction gas entrance equably
Fan-shaped runners 5 are spread around, and reaction gas and electrode diffusion layer have bigger contact surface in fan-shaped runners, guarantee that reaction gas fills
Divide reaction.The reaction product of final each fan-shaped runners 5 enters the circular product in edge and collects runner 4, is easy to shorter road
Diameter is expelled directly out by gas outlet 8, is not susceptible to block.
For the leakproofness for guaranteeing flow-field plate, in flow field, sealed groove 3 is arranged in surrounding, and runner is surrounded, gasket is made
Circle is placed in sealed groove 3, after end plate, insulation board, collector plate, flow-field plate, electrode assembly etc. are assembled into battery, will not be generated
Gas leak phenomenon.
According to fixed charge method end plate, insulation board, anode current collector plate, anode flow field board, electrode assembly, cathode flow field plate, cathode collection
Flowing plate, insulation board, fixed charge method end plate fit together composition fuel cell.
Embodiment 2
A kind of waterwheel shape fuel cell flow field board suitable for gas electrode, including mounting hole, substrate, sealed groove, production
Object collects runner, fan-shaped runners, flow field ridge, air inlet and gas outlet.It is circle that the product at edge, which collects runner, flow-field plate
Material used by substrate is graphite.The radius that the air inlet at flow field center is arranged is 0.1cm, and the angle of fan-shaped runners is 5 °,
The angle of flow field ridge is 4 °, radius 3cm.Air inlet secret tunnel is set in the upper left corner of flow-field plate side, will be reacted by air inlet
Gas guides flow field center into, and equably fan-shaped runners are spread around after reaction gas enters, reaction gas and electricity in fan-shaped runners
Pole diffusion layer has bigger contact surface, guarantees that reaction gas sufficiently reacts.The reaction product of final each fan-shaped runners enters circle
Product collect runner, be easy to be expelled directly out with shorter path by gas outlet, be not susceptible to block.
For the leakproofness for guaranteeing flow-field plate, in flow field, sealed groove is arranged in surrounding, and runner is surrounded, seal washer is made
It is placed in sealed groove, after end plate, insulation board, collector plate, flow-field plate, electrode assembly etc. are assembled into battery, leakage will not be generated
Gas phenomenon.
According to fixed charge method end plate, insulation board, anode current collector plate, anode flow field board, electrode assembly, cathode flow field plate, cathode collection
Flowing plate, insulation board, fixed charge method end plate fit together composition fuel-cell device.
Embodiment 3
As shown in Fig. 2, a kind of waterwheel shape fuel cell flow field board suitable for gas electrode, including mounting hole 1, substrate 2,
Sealed groove 3, product collect runner 4, fan-shaped runners 5, flow field ridge 6, air inlet 7 and gas outlet 8.The product at edge collects stream
Road 4 be it is rectangular, material used by the substrate 2 of flow-field plate be titanium plate.The radius that the air inlet 7 at flow field center is arranged is 0.2cm,
The angle of fan-shaped runners 5 is 8 °, and the angle of flow field ridge 6 is 4 °, and the total length that rectangular product collects runner 4 is 80cm, unilateral length
For 10cm × 2=20cm.Air inlet secret tunnel is set in the upper left corner of flow-field plate side, reaction gas into is guided in flow field by air inlet 7
Center, equably fan-shaped runners 5 are spread around after reaction gas enters, reaction gas and electrode diffusion layer in fan-shaped runners 5
There is bigger contact surface, guarantees that reaction gas sufficiently reacts.The reaction product of final each fan-shaped runners 5 enters rectangular product and collects
Runner 4 is easy to be expelled directly out with shorter path by gas outlet 8, is not susceptible to block.
For the leakproofness for guaranteeing flow-field plate, in flow field, sealed groove is arranged in surrounding, and runner is surrounded, seal washer is made
It is placed in sealed groove, after end plate, insulation board, collector plate, flow-field plate, electrode assembly etc. are assembled into battery, will not generate
Gas leak phenomenon.
According to fixed charge method end plate, insulation board, anode current collector plate, anode flow field board, electrode assembly, cathode flow field plate, cathode collection
Flowing plate, insulation board, fixed charge method end plate fit together composition fuel-cell device.
Embodiment 4
As shown in figure 3, a kind of waterwheel shape fuel cell flow field board suitable for gas electrode, including mounting hole 1, substrate 2,
Sealed groove 3, product collect runner 4, fan-shaped runners 5, flow field ridge 6, air inlet 7 and gas outlet 8.The product at edge collects stream
Road 4 is regular polygon, and material used by the substrate 2 of flow-field plate is titanium plate.The radius that the air inlet 7 at flow field center is arranged is
0.25cm, the angle of fan-shaped runners 5 are 12 °, and the angle of flow field ridge 6 is 10 °, radius 7cm.In the upper left corner of flow-field plate side
Air inlet secret tunnel is set, reaction gas into is guided in flow field center by air inlet 7, reaction gas is equably fan-shaped around after entering to flow
Road 5 is spread, and reaction gas and electrode diffusion layer have bigger contact surface in fan-shaped runners 5, guarantees that reaction gas sufficiently reacts.Finally
The reaction product of each fan-shaped runners 5 enters regular polygon product and collects runner 4, is easy to pass through gas outlet 8 with shorter path
It is expelled directly out, is not susceptible to block.
For the leakproofness for guaranteeing flow-field plate, in flow field, sealed groove is arranged in surrounding, and runner is surrounded, seal washer is made
It is placed in sealed groove, after end plate, insulation board, collector plate, flow-field plate, electrode assembly etc. are assembled into battery, leakage will not be generated
Gas phenomenon.
According to fixed charge method end plate, insulation board, anode current collector plate, anode flow field board, electrode assembly, cathode flow field plate, cathode collection
Flowing plate, insulation board, fixed charge method end plate fit together composition fuel-cell device.
Above embodiments are merely to illustrate technical solution of the present invention, are not limitations of the present invention, the art
Change that those of ordinary skill is made within the essential scope of the present invention, substitution, modification, simplification are equivalent transformation, not
It is detached from spirit of the invention, also should belong to claims of the invention.
Claims (8)
1. a kind of waterwheel shape fuel cell flow field board suitable for gas electrode, including substrate (2), runner, air inlet (7) and go out
Port (8), which is characterized in that the runner is fan-shaped runners (5), and the air inlet (7) setting is described at flow field center
Fan-shaped runners (5) one end be connected to centrally located air inlet (7), other end connection product collects runner (4), in flow-field plate side
One jiao of setting air inlet secret tunnel in face, reaction gas enters from air inlet secret tunnel, and guides flow field center into from air inlet (7), then
Fan-shaped runners (5) diffusion evenly around, the product of final each fan-shaped runners (5) collect runner (4) from product with shorter
Path be expelled directly out by gas outlet (8).
2. a kind of waterwheel shape fuel cell flow field board suitable for gas electrode according to claim 1, which is characterized in that phase
It is the flow field ridge (6) of protrusion between adjacent fan-shaped runners (5), the angle of fan-shaped runners (5) and the angle ratio of flow field ridge (6) are 1:1-
3:1。
3. a kind of waterwheel shape fuel cell flow field board suitable for gas electrode according to claim 2, which is characterized in that fan
The angle of shape runner (5) is 5-12 °, and the angle of flow field ridge (6) is 4-10 °, length 3-10cm.
4. a kind of waterwheel shape fuel cell flow field board suitable for gas electrode according to claim 1, which is characterized in that institute
The radius for the air inlet (7) stated is 0.1-0.25cm.
5. a kind of waterwheel shape fuel cell flow field board suitable for gas electrode according to claim 1, which is characterized in that institute
It is round, rectangular or regular polygon that the product stated, which collects runner (4),.
6. a kind of waterwheel shape fuel cell flow field board suitable for gas electrode according to claim 1, which is characterized in that institute
The region that the substrate (2) stated is equipped with runner is flow field, and in flow field, surrounding setting sealed groove (3), runner is surrounded, and
Seal washer is placed in sealed groove (3) to be sealed.
7. a kind of waterwheel shape fuel cell flow field board suitable for gas electrode according to claim 1, which is characterized in that institute
The material for the substrate (2) stated uses graphite, stainless steel, aluminium alloy or titanium plate.
8. a kind of waterwheel shape fuel cell flow field board suitable for gas electrode according to claim 1, which is characterized in that institute
The flow-field plate stated is primarily adapted for use in the gas electrode in fuel cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576867.6A CN109768299A (en) | 2018-12-23 | 2018-12-23 | A kind of waterwheel shape fuel cell flow field board suitable for gas electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576867.6A CN109768299A (en) | 2018-12-23 | 2018-12-23 | A kind of waterwheel shape fuel cell flow field board suitable for gas electrode |
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| Publication Number | Publication Date |
|---|---|
| CN109768299A true CN109768299A (en) | 2019-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811576867.6A Pending CN109768299A (en) | 2018-12-23 | 2018-12-23 | A kind of waterwheel shape fuel cell flow field board suitable for gas electrode |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299544A (en) * | 2019-06-25 | 2019-10-01 | 山东建筑大学 | Fuel cell variable section runner and bipolar plates with the runner |
| CN111370726A (en) * | 2020-03-17 | 2020-07-03 | 山东建筑大学 | Radial flow field structure of fuel cell |
| CN114725424A (en) * | 2022-06-08 | 2022-07-08 | 爱德曼氢能源装备有限公司 | Radial flow field structure of fuel cell |
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| US5922485A (en) * | 1996-10-22 | 1999-07-13 | Fuji Electric Co., Ltd. | Solid polymer electrolyte fuel cell |
| JP2005026067A (en) * | 2003-07-02 | 2005-01-27 | Sony Corp | Fuel cell |
| CN1295805C (en) * | 2005-07-22 | 2007-01-17 | 北京工业大学 | Asymmetric interlaced flow passage double pole plate of proton exchange membrane fuel cell |
| CN1953256A (en) * | 2005-10-19 | 2007-04-25 | 比亚迪股份有限公司 | A flow field plate and fuel cell stack containing the same |
| CN101262071A (en) * | 2007-03-05 | 2008-09-10 | �田�浩 | Rotary proton exchange film fuel battery |
| CN102290581A (en) * | 2011-07-26 | 2011-12-21 | 上海交通大学 | Bipolar plate for unitized double-effect regenerative fuel cell |
| CN105839136A (en) * | 2016-04-08 | 2016-08-10 | 中国工程物理研究院材料研究所 | Centrosymmetric radial bipolar plate flow field structure for solid polymer electrolyte (SPE) electrolysis |
| CN206194865U (en) * | 2016-12-08 | 2017-05-24 | 中国石油大学(华东) | Fuel cell bipolar plate in web frame flow field |
-
2018
- 2018-12-23 CN CN201811576867.6A patent/CN109768299A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5922485A (en) * | 1996-10-22 | 1999-07-13 | Fuji Electric Co., Ltd. | Solid polymer electrolyte fuel cell |
| JP2005026067A (en) * | 2003-07-02 | 2005-01-27 | Sony Corp | Fuel cell |
| CN1295805C (en) * | 2005-07-22 | 2007-01-17 | 北京工业大学 | Asymmetric interlaced flow passage double pole plate of proton exchange membrane fuel cell |
| CN1953256A (en) * | 2005-10-19 | 2007-04-25 | 比亚迪股份有限公司 | A flow field plate and fuel cell stack containing the same |
| CN101262071A (en) * | 2007-03-05 | 2008-09-10 | �田�浩 | Rotary proton exchange film fuel battery |
| CN102290581A (en) * | 2011-07-26 | 2011-12-21 | 上海交通大学 | Bipolar plate for unitized double-effect regenerative fuel cell |
| CN105839136A (en) * | 2016-04-08 | 2016-08-10 | 中国工程物理研究院材料研究所 | Centrosymmetric radial bipolar plate flow field structure for solid polymer electrolyte (SPE) electrolysis |
| CN206194865U (en) * | 2016-12-08 | 2017-05-24 | 中国石油大学(华东) | Fuel cell bipolar plate in web frame flow field |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299544A (en) * | 2019-06-25 | 2019-10-01 | 山东建筑大学 | Fuel cell variable section runner and bipolar plates with the runner |
| CN111370726A (en) * | 2020-03-17 | 2020-07-03 | 山东建筑大学 | Radial flow field structure of fuel cell |
| CN111370726B (en) * | 2020-03-17 | 2021-10-08 | 山东建筑大学 | Radial flow field structure of fuel cell |
| CN114725424A (en) * | 2022-06-08 | 2022-07-08 | 爱德曼氢能源装备有限公司 | Radial flow field structure of fuel cell |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 200030 Dongchuan Road, Minhang District, Minhang District, Shanghai Applicant after: SHANGHAI JIAO TONG University Address before: 200030 Huashan Road, Shanghai, No. 1954, No. Applicant before: SHANGHAI JIAO TONG University |
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Application publication date: 20190517 |