CN107968211A - A kind of flow field plate structure for Proton Exchange Membrane Fuel Cells - Google Patents
A kind of flow field plate structure for Proton Exchange Membrane Fuel Cells Download PDFInfo
- Publication number
- CN107968211A CN107968211A CN201711146218.8A CN201711146218A CN107968211A CN 107968211 A CN107968211 A CN 107968211A CN 201711146218 A CN201711146218 A CN 201711146218A CN 107968211 A CN107968211 A CN 107968211A
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- Prior art keywords
- runner
- flow
- field plate
- rhone
- field
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/026—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/0263—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant having meandering or serpentine paths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04291—Arrangements for managing water in solid electrolyte fuel cell systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1007—Fuel cells with solid electrolytes with both reactants being gaseous or vaporised
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a kind of flow field plate structure for Proton Exchange Membrane Fuel Cells, including flow-field plate body, the runner field of overall serpentine-like arrangement is offered in the front of flow-field plate body, the initiating terminal in runner field is equipped with runner air admission hole；Runner field includes a plurality of parallel arrangement and the single channel being sequentially connected, and is runner shoulder between two neighboring single channel, rhone is offered on runner shoulder；It is disposed with apopore in the bottom of rhone, with opening up and the catch basin at the flow-field plate body back side connects, catch basin connects apopore with being opened in the runner exhausting-gas hole of flow-field plate body.Beneficial effects of the present invention are：It is provided with rhone on runner shoulder, product water discharges rapidly fuel cell by generating rhone near position and apopore；Meanwhile transport reacting gas and separated to fuel cell each several part and draining, avoiding gas in runner, as the more and more situations of runner water content occur, reduces the risk of obstruction, while also make it that humidity is more balanced in runner, is more conducive to draining.
Description
Technical field
The present invention relates to field of fuel cell technology, and in particular to a kind of flow-field plate for Proton Exchange Membrane Fuel Cells
Structure.
Background technology
Proton Exchange Membrane Fuel Cells（PEMFC）It is a kind of device that power generation is realized using hydrogen and oxygen as fuel.With
Traditional internal combustion engine is compared, and any type of combustion process is not present in when operation of fuel cells, so not having nitrogen oxides etc.
Pernicious gas generates, its product only has electric energy, water and thermal energy, is a kind of power generator of environment-friendly and green.Hydrogen and oxygen（It is empty
Oxygen in gas）Gas diffusion layers, and then Catalytic Layer are entered by gas flow from the anode and cathode of fuel cell respectively
It is electrochemically reacted.Anode gas flow channels outlet is the unnecessary hydrogen for being not engaged in reaction, and cathode gas flow channels outlet has
React the water produced and unreacted air.
In PEMFC operational process, battery performance is influenced by factors, mainly includes elctro-catalyst activity.In electrode
Several aspects such as mass transfer, electrode conductivuty and film resistance.But it is due to that water management causes electricity in actual moving process more
Pond performance is remarkably decreased.Water in PEMFC is generally made of two parts, and a part is the humidification water that reacting gas is brought into；It is another
Part is the generation water of reaction process.Humidification water is the necessary condition for ensureing Solid-State proton exchange membrane normal operation, and generation water is
The primary product of cell reaction.The reaction characteristics of PEMFC are that humidification water discharges battery life again necessary to should ensureing to react
Into superfluous water, otherwise will cause the water logging of electrode or runner, polarization dramatically increases, while also makes reaction gas skewness,
Increase reaction medium to be catalyzed interface resistance to mass tranfer, influence being uniformly distributed for reacting gas, this will directly affect battery performance,
It is serious to cause battery failure.
Flow field is the drainage arrangement of fuel cell, and common flow field structure has rectangle channel (paralled flow
Field), interdigital shape flow field (interdigitated flow field) and cascade flow field (cascade flow field).It is flat
Row flow field has the advantages that flow resistance is small, this can reduce the pressure loss to a certain extent, improves the whole efficiency of battery, so
And the flowing of gas and response situation difference can cause fuel cell overall performance unstable in each runner, and parallel groove stream
In, generation water is mostly condensed into fluid column in runner, be easy to cause obstruction, the performance of strong influence fuel cell.With this
Compare, liquid column length is then much smaller in interdigital shape flow field and cascade flow field.Because in both flow fields, unreacting gas are necessary
Through gas diffusion layers（GDL）Outlet discharge battery is got to, has taken the generation water in GDL microchannels out of in the process,
So liquid water is less in runner, but since the resistance of diffusion layer is larger, it can increase the pressure drop in flow field, and easily send out
Raw short circuit or the situation of channel.
The content of the invention
It is an object of the present invention in view of the deficiencies of the prior art, there is provided a kind of draining is rapid, be not easy to plug be used for matter
The flow field plate structure of proton exchange film fuel cell.
The technical solution adopted by the present invention is：A kind of flow field plate structure for Proton Exchange Membrane Fuel Cells, including stream
Field plate body, the runner field of overall serpentine-like arrangement is offered in the front of flow-field plate body, and the initiating terminal in runner field is equipped with
Runner air admission hole；Runner field includes a plurality of parallel arrangement and the single channel being sequentially connected, and is runner between two neighboring single channel
Shoulder, offers rhone on runner shoulder；Apopore is disposed with the bottom of rhone, apopore is with opening up and in flow-field plate body
The catch basin connection at the back side, catch basin are connected with being opened in the runner exhausting-gas hole of flow-field plate body.
By such scheme, catch basin is connected with collecting tray, and collecting tray is arranged on the back side of flow-field plate body, and collecting tray passes through remittance
Discharge orifice is connected with flow field exhausting-gas hole.
By such scheme, uniform intervals arrange three apopores along its length in rhone, each apopore with
The catch basin connection at the flow-field plate body back side.
By such scheme, the apopore in all rhones is distributed on three lines；The catch basin is in E fonts.
By such scheme, there is the single channel that bar is sequentially connected in the runner field；The rhone has 12.
By such scheme, the rhone is rectangular channel, and rhone both ends are equipped with rounded corner.
Compared with prior art, beneficial effects of the present invention are：
1 uses serpentine-like arrangement runner field in runner inlet end, and reacting gas can be equably transported to rapidly each portion in flow field
Point；And resistance of the reacting gas suffered by runner field is smaller, the pressure drop in flow field is smaller, reacting gas each several part in runner
Distribution situation is average, has electric current distribution evenly, and serpentine flow path relative to interdigital flow field and cascade flow field
The microchannel that the water of interior collection is had to pass through on diffusion layer reaches runner exhausting-gas hole, while has taken away the generation of diffusion layer microchannel
Water, has more preferable drainage effect；
It is provided with rhone on 2 runner shoulders, on the one hand product water is discharged rapidly by generating rhone near position and apopore
Fuel cell, on the other hand by serpentine flow path, as gas passes through, diffusion layer passes through rhone and apopore discharges fuel electricity
Pond；Meanwhile transport reacting gas and separated to fuel cell each several part and draining, gas is avoided in runner with runner water
The more and more situations of content occur, and reduce the risk of obstruction, while also make it that humidity is more balanced in runner, more conducively arrange
Water；
3 the configuration of the present invention is simple, drainage effect are good.
Brief description of the drawings
Fig. 1 is the front view of a specific embodiment of the invention.
Fig. 2 is the A-A sectional views of Fig. 1.
Fig. 3 is the rearview of the present embodiment.
Fig. 4 is the B-B sectional views of Fig. 3.
Fig. 5 is the right view of the present embodiment.
Wherein：1st, apopore；2nd, rhone；3rd, runner field；4th, runner shoulder；5th, collecting tray；6th, catch basin；7th, runner air inlet
Hole；8th, runner exhausting-gas hole；9th, flow-field plate body；10th, confluence hole.
Embodiment
For a better understanding of the present invention, the present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
A kind of flow field plate structure for Proton Exchange Membrane Fuel Cells as shown in Fig. 1 ~ 5, including flow-field plate body 9,
The runner field 3 of overall serpentine-like arrangement is offered in the front of flow-field plate body 9, the initiating terminal in runner field 3 is equipped with through hole stream
Road air admission hole 7；Runner field 3 includes a plurality of parallel arrangement and the single channel being sequentially connected, and is runner between two neighboring single channel
Shoulder 4, offers rhone 3 on runner shoulder 4；Apopore 1 is disposed with the bottom of rhone 3, apopore 1 is with opening up and in flow field
The catch basin 6 at 9 back side of plate body connects, and catch basin 6 is connected with the runner exhausting-gas hole 8 being opened on 9 side of flow-field plate body.
In the present embodiment, the runner field 3 of overall serpentine-like arrangement shares 13 parallel arrangements and the single channel being sequentially connected；
The rhone 2 has 12, and rhone 2 is rectangular channel, and the length of rhone 2 is identical with the length of single channel, and the two of rhone 2
End is equipped with rounded corner；Uniform intervals arrange three apopores 1 along its length in rhone 2, and each apopore 1 is and flow field
The catch basin 6 at 9 back side of plate body connects.The shape of catch basin 6 can be designed according to the position optimization of apopore 1（To reduce as far as possible
Based on the area of catch basin 6）, in the present embodiment, since the apopore 1 in all rhones 2 is distributed on three lines, therefore will collection
The design of sink 6 is in E fonts；Catch basin 6 is connected with collecting tray 5, and collecting tray 5 is arranged on the back side of flow-field plate body 9, and collecting tray 5 is logical
Confluence hole 10 is crossed to connect with flow field exhausting-gas hole 8.
The present invention operation principle be：Gas enters snakelike runner field 3 from runner air admission hole 7, reaches and flows along runner field 3
Each position of field plate body 9, and carry out reaction generation product water by the diffusion layer arrival Catalytic Layer of fuel cell；Have neither part nor lot in
The gas of reaction and the water produced are diffused into the rhone 2 on runner shoulder 4, and are reached through apopore 1 and the catch basin at the back side 6
Discharged after collecting tray 5 from runner exhausting-gas hole 8.
Finally it should be noted that these are only the preferred embodiment of the present invention, it is not intended to limit the invention, although
The present invention is described in detail with reference to embodiment, for those skilled in the art, it still can be to foregoing
Technical solution described in each embodiment is modified, or to which part technical characteristic carry out equivalent substitution, but it is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on, should be included in the protection of the present invention
Within the scope of.
Claims (6)
1. a kind of flow field plate structure for Proton Exchange Membrane Fuel Cells, it is characterised in that including flow-field plate body, in flow field
The front of plate body offers the runner field of overall serpentine-like arrangement, and the initiating terminal in runner field is equipped with runner air admission hole；Runner
Field includes a plurality of parallel arrangement and the single channel being sequentially connected, and is runner shoulder between two neighboring single channel, is opened up on runner shoulder
There is rhone；Apopore is disposed with the bottom of rhone, apopore is with opening up and in the catch basin company at the flow-field plate body back side
Logical, catch basin is connected with being opened in the runner exhausting-gas hole of flow-field plate body.
2. as claimed in claim 1 be used for Proton Exchange Membrane Fuel Cells flow field plate structure, it is characterised in that catch basin with
Collecting tray connects, and collecting tray is arranged on the back side of flow-field plate body, and collecting tray is connected by hole of converging with flow field exhausting-gas hole.
3. it is used for the flow field plate structure of Proton Exchange Membrane Fuel Cells as claimed in claim 1, it is characterised in that in rhone
Inside uniform intervals arrange three apopores along its length, and catch basin of each apopore with the flow-field plate body back side connects.
4. it is used for the flow field plate structure of Proton Exchange Membrane Fuel Cells as claimed in claim 3, it is characterised in that all drainings
Apopore in groove is distributed on three lines；The catch basin is in E fonts.
5. it is used for the flow field plate structure of Proton Exchange Membrane Fuel Cells as claimed in claim 1, it is characterised in that
There is the single channel that bar is sequentially connected in the runner field；The rhone has 12.
6. it is used for the flow field plate structure of Proton Exchange Membrane Fuel Cells as claimed in claim 1, it is characterised in that the draining
Groove is rectangular channel, and rhone both ends are equipped with rounded corner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711146218.8A CN107968211B (en) | 2017-11-17 | 2017-11-17 | Flow field plate structure for proton exchange membrane fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711146218.8A CN107968211B (en) | 2017-11-17 | 2017-11-17 | Flow field plate structure for proton exchange membrane fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107968211A true CN107968211A (en) | 2018-04-27 |
| CN107968211B CN107968211B (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711146218.8A Active CN107968211B (en) | 2017-11-17 | 2017-11-17 | Flow field plate structure for proton exchange membrane fuel cell |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065907A (en) * | 2018-08-21 | 2018-12-21 | 上海空间电源研究所 | A kind of fuel battery polar plate flow field structure and fuel battery pole board |
| CN109494385A (en) * | 2018-12-07 | 2019-03-19 | 武汉理工大学 | A kind of monocell and proton exchange film fuel cell electric piling structure in chiasma type flow field |
| CN109509897A (en) * | 2018-12-13 | 2019-03-22 | 中国科学院大连化学物理研究所 | A kind of water flow field for static water removal fuel cell water guide bipolar plates |
| CN113161569A (en) * | 2021-04-30 | 2021-07-23 | 山东理工大学 | Fuel cell flow field plate adopting combined flow field |
| CN113809350A (en) * | 2021-08-30 | 2021-12-17 | 一汽解放汽车有限公司 | Fuel cell, cell unit and electrode plate |
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| CN201812887U (en) * | 2010-05-28 | 2011-04-27 | 北京科技大学 | Portable anode flow field board for direct methanol fuel cell |
| CN104393322A (en) * | 2014-12-05 | 2015-03-04 | 上海空间电源研究所 | Fuel cell stack realizing automatic drainage and air admission |
| CN105742667A (en) * | 2016-04-19 | 2016-07-06 | 武汉理工大学 | Negative electrode flow field plate bionic structure capable of improving drainage performance of fuel cell |
| JP2017016942A (en) * | 2015-07-03 | 2017-01-19 | 国立大学法人山梨大学 | Separator for fuel battery, cell structure and cell stack |
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2017
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201812887U (en) * | 2010-05-28 | 2011-04-27 | 北京科技大学 | Portable anode flow field board for direct methanol fuel cell |
| CN104393322A (en) * | 2014-12-05 | 2015-03-04 | 上海空间电源研究所 | Fuel cell stack realizing automatic drainage and air admission |
| JP2017016942A (en) * | 2015-07-03 | 2017-01-19 | 国立大学法人山梨大学 | Separator for fuel battery, cell structure and cell stack |
| CN105742667A (en) * | 2016-04-19 | 2016-07-06 | 武汉理工大学 | Negative electrode flow field plate bionic structure capable of improving drainage performance of fuel cell |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065907A (en) * | 2018-08-21 | 2018-12-21 | 上海空间电源研究所 | A kind of fuel battery polar plate flow field structure and fuel battery pole board |
| CN109065907B (en) * | 2018-08-21 | 2022-03-25 | 上海空间电源研究所 | Fuel cell polar plate flow field structure and fuel cell polar plate |
| CN109494385A (en) * | 2018-12-07 | 2019-03-19 | 武汉理工大学 | A kind of monocell and proton exchange film fuel cell electric piling structure in chiasma type flow field |
| CN109509897A (en) * | 2018-12-13 | 2019-03-22 | 中国科学院大连化学物理研究所 | A kind of water flow field for static water removal fuel cell water guide bipolar plates |
| CN113161569A (en) * | 2021-04-30 | 2021-07-23 | 山东理工大学 | Fuel cell flow field plate adopting combined flow field |
| CN113809350A (en) * | 2021-08-30 | 2021-12-17 | 一汽解放汽车有限公司 | Fuel cell, cell unit and electrode plate |
| CN113809350B (en) * | 2021-08-30 | 2023-10-17 | 一汽解放汽车有限公司 | Fuel cell and cell unit |
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| Publication number | Publication date |
|---|---|
| CN107968211B (en) | 2020-12-01 |
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