CN113314726B - Arrow-feather-shaped bipolar plate of proton exchange membrane fuel cell - Google Patents
Arrow-feather-shaped bipolar plate of proton exchange membrane fuel cell Download PDFInfo
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- CN113314726B CN113314726B CN202110626362.1A CN202110626362A CN113314726B CN 113314726 B CN113314726 B CN 113314726B CN 202110626362 A CN202110626362 A CN 202110626362A CN 113314726 B CN113314726 B CN 113314726B
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- 239000000446 fuel Substances 0.000 title claims abstract description 21
- 239000012528 membrane Substances 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 19
- 239000007788 liquid Substances 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000009792 diffusion process Methods 0.000 abstract description 6
- 239000012495 reaction gas Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 239000000376 reactant Substances 0.000 description 8
- 238000010248 power generation Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000756122 Aristida purpurascens Species 0.000 description 1
- 206010013496 Disturbance in attention Diseases 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
-
- 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
-
- 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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
-
- 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 provides an arrow-shaped proton exchange membrane fuel cell bipolar plate which comprises a bipolar plate body, wherein an air inlet and an air inlet channel communicated with the air inlet are arranged at the top of the bipolar plate body, an outlet and an exhaust channel communicated with the outlet are arranged at the bottom of the bipolar plate body, an interdigital flow field is arranged in the bipolar plate body, and the interdigital flow field comprises a plurality of arrow-shaped flow channels which are horizontally arranged and vertically arranged. The flow field structure of the invention is based on the improvement of an interdigital flow field and is provided with arrow-shaped runners. The number of convection channels under the ribs is increased, the concentration of the reaction gas in the gas diffusion layer is improved, and the gas utilization rate is improved; meanwhile, in the process of conveying the reaction gas, redundant liquid water in the gas diffusion layer is taken away, and the phenomenon of flooding of the battery is effectively prevented.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a bipolar plate of a proton exchange membrane fuel cell, and especially relates to an arrow-shaped bipolar plate of the proton exchange membrane fuel cell.
Background
The fuel cell is a device for directly converting chemical energy of fuel into electric energy, is a fourth generation power generation technology for carrying out hydroelectric power generation, thermal energy power generation and atomic power generation, and has the characteristics of cleanness, environmental protection, high efficiency and the like. The Proton Exchange Membrane Fuel Cell (PEMFC) has the advantages of low temperature operation, long service life, stable performance and the like, and is widely applied to the transportation fields of automobiles, ships and the like. Bipolar plates are the main component of fuel cells and have the function of collecting electrons and isolating the reactant gases and are therefore also called collector plates or separator plates. The flow field provided on the bipolar plate determines the distribution of the reactant gases within the fuel cell and also affects the drainage of the liquid water produced by the reaction. The distribution of the reaction gas can influence the electrochemical reaction rate and thus the local temperature; uneven distribution of the reactant gases can cause localized hot spot temperatures that affect cell performance and service life. The generated liquid water also affects the performance of the battery, and if the generated liquid water cannot be discharged in time, a battery flooding phenomenon can occur, so that the performance of the battery is rapidly reduced. Common flow field structures mainly comprise parallel flow fields, serpentine flow fields, interdigital flow fields, spiral flow fields and the like. Bipolar plates containing these flow fields have certain problems in terms of performance and require optimization and new designs.
1. Bipolar plates containing parallel flow fields. The parallel flow field has the advantages of simple structure, low processing cost, small pressure drop and the like, but due to low gas flow velocity and low gas utilization rate, liquid water cannot be discharged in time, one or more channels are blocked easily, and the performance of the battery is reduced.
2. Bipolar plates containing serpentine flow fields. The serpentine flow field is provided with a flow passage which can effectively discharge liquid water, but also causes overlarge pressure drop; the concentration loss at the outlet is excessive due to the consumption of the reaction, resulting in uneven distribution of the reaction gas.
3. Bipolar plates containing interdigitated flow fields. The cross flow field is composed of closed flow channels, and reactant gas is forced to flow under the ribs, so that the concentration of reactants in the gas diffusion layer is increased, and liquid water in the gas diffusion layer is discharged. But the pressure drop is large due to its closed flow path; meanwhile, when the air flow is large, the membrane electrode is damaged, and the battery is permanently damaged.
4. Bipolar plates containing spiral flow fields. The spiral flow field consists of spiral flow channels, and the centrifugal force effect generated when the reactant gas passes through the spiral flow field can strengthen the convection under the ribs of the reactant gas and enhance the mass transfer. However, the spiral flow field has large processing difficulty, small effective area and large pressure drop, so the spiral flow field is not suitable for wide application.
Disclosure of Invention
According to the technical problems, an arrow-shaped proton exchange membrane fuel cell bipolar plate is provided.
The invention adopts the following technical means:
The bipolar plate of the arrow-feather-shaped proton exchange membrane fuel cell comprises a bipolar plate body, wherein an air inlet and an air inlet channel communicated with the air inlet are arranged at the top of the bipolar plate body, an outlet and an exhaust channel communicated with the outlet are arranged at the bottom of the bipolar plate body, an interdigital flow field is arranged in the bipolar plate body, and the interdigital flow field comprises a plurality of arrow-feather-shaped flow channels which are horizontally arranged and vertically arranged;
The arrow-shaped flow passage comprises a vertically arranged air inlet flow passage and air inlet sub-flow passage groups symmetrically arranged on two sides of the air inlet flow passage, the air inlet sub-flow passage groups comprise a plurality of air inlet sub-flow passages which are sequentially arranged from top to bottom, one end of each air inlet sub-flow passage is communicated with the air inlet flow passage, and the other end of each air inlet sub-flow passage is sealed; a gap between two adjacent air inlet sub-channels forms a discharge sub-channel; the top of the air inlet flow channel is communicated with an air inlet branch inlet arranged on the air inlet channel;
A vertically arranged discharge runner is formed in a gap between two adjacent arrow-shaped runners, one end of the discharge sub runner, which is close to the discharge runner, is communicated with the discharge runner, and one end, which is far away from the discharge runner, is sealed; the bottom of the discharge flow channel is communicated with the discharge channel; the bottom of the air inlet flow channel and the top of the discharge flow channel are respectively sealed by a sealing baffle plate;
And a flow field side flow channel is formed between the arrow-shaped flow channel and the side wall of the bipolar plate body, the bottom of the flow field side flow channel is communicated with the discharge channel, and the top of the flow field side flow channel is sealed.
Preferably, one end of the air inlet sub-runner, which is far away from the air inlet runner, is arranged obliquely downwards.
Preferably, an included angle alpha between the air inlet sub-runner and the air inlet runner is 15-75 degrees.
Preferably, the width a of the air inlet channel is 1-4mm.
Preferably, the width b of the air inlet sub-runner is 0.5-1.5 mm.
Preferably, the width c of the discharge sub-flow passage is 0.5-1.2mm.
Preferably, the width d of the discharge flow channel is 1-3mm.
The air inlet sub-runner and the exhaust sub-runner realize the under-rib convection, and meanwhile, the air inlet runner and the exhaust sub-runner, and the air inlet sub-runner and the exhaust runner also realize the under-rib convection.
The arrow-feather-shaped flow passage is formed by fixedly connecting an arrow-feather-shaped rib plate with the bipolar plate body, and the cross section area of the air inlet sub-flow passage is equal to or slightly larger than the cross section area of the arrow-feather-shaped rib plate.
Compared with the prior art, the invention has the following advantages:
1. The flow field structure is based on the improvement of an interdigital flow field and is provided with arrow-shaped flow channels. The air inlet ports are uniformly distributed in the air inlet channel, so that the air is ensured to uniformly enter the air inlet channel. The air inlet sub-runners are uniformly distributed on two sides of the air inlet runner, the width of the air inlet runners is the same, and the width of the air inlet sub-runners is the same, so that gas is uniformly distributed on the whole flow field, the electrochemical reaction rate is ensured to be the same, the occurrence of local hot spot temperature is prevented, and the long-term stable operation of the battery is ensured.
2. The arrow-shaped flow channels increase the number of convection channels under the ribs, improve the concentration of reaction gas in the gas diffusion layer and improve the gas utilization rate; meanwhile, in the process of conveying the reaction gas, redundant liquid water in the gas diffusion layer is taken away, and the phenomenon of flooding of the battery is effectively prevented.
3. The included angles between the air inlet sub-flow channel and the air inlet flow channel and between the air outlet sub-flow channel and the air outlet flow channel are alpha, the alpha value is 15-75 degrees, the reactant gas can be ensured to enter the sub-flow channel more easily, and meanwhile, the produced liquid water can smoothly enter the air outlet flow channel from the air outlet sub-flow channel, so that the flow field is discharged, and the overall performance of the battery is improved.
4. The cross section area of the air inlet sub-runner is equal to or slightly larger than that of the arrow-feather-shaped rib plate, so that lower contact resistance can be ensured, and meanwhile, the air inlet sub-runner has a larger effective reaction area, and the utilization rate of the catalyst and the battery performance are improved.
For the reasons, the invention can be widely popularized in the fields of bipolar plates and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a top view of an arrow-like proton exchange membrane fuel cell bipolar plate in accordance with an embodiment of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of section B of fig. 1 (with gas flow schematic).
Fig. 4 is a diagram of the dimensions of an arrow-shaped flow field in an embodiment of the invention.
In the figure: 1. a bipolar plate body; 2. an air inlet; 3. an air intake passage; 4. an inlet of the air inlet branch; 5. a flow field side flow channel; 6. a closing baffle; 7. a discharge passage; 8. an outlet; 9. an intake runner; 10. an air inlet sub-runner; 11. a discharge flow path; 12. discharging the sub-flow passage; 13. arrow feather-shaped rib plates.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
As shown in fig. 1 to 4, the invention provides an arrow-shaped proton exchange membrane fuel cell bipolar plate, which comprises a bipolar plate body 1, wherein an air inlet 2 and an air inlet channel 3 communicated with the air inlet 2 are arranged at the top of the bipolar plate body 1, and the air inlet 2 is arranged at the right side of the top of the bipolar plate body 1; the bottom of the bipolar plate body 1 is provided with an outlet 8 and a discharge channel 7 communicated with the outlet 8, and the outlet 8 is arranged at the left side of the bottom of the bipolar plate body 1; an interdigital flow field is arranged in the bipolar plate body 1 and comprises a plurality of arrow-shaped runners which are horizontally arranged and vertically arranged;
The arrow-shaped flow passage comprises a vertical air inlet flow passage 9 and air inlet sub-flow passage groups symmetrically arranged on two sides of the air inlet flow passage 9, wherein each air inlet sub-flow passage group comprises a plurality of air inlet sub-flow passages 10 (uniformly distributed) which are sequentially distributed from top to bottom, one end of each air inlet sub-flow passage 10 is communicated with the air inlet flow passage 9, and the other end of each air inlet sub-flow passage is sealed; a gap between two adjacent air inlet sub-channels 10 forms an exhaust sub-channel 12; the top of the air inlet runner 9 is communicated with an air inlet sub-inlet 4 arranged on the air inlet channel 3;
A vertically arranged discharge runner 11 is formed in a gap between two adjacent arrow-shaped runners, one end of the discharge sub runner 12 close to the discharge runner 11 is communicated with the discharge runner 11, and one end far away from the discharge runner 11 is sealed; the bottom of the discharge flow passage 11 communicates with the discharge passage 7; the bottom of the air inlet flow channel 9 and the top of the exhaust flow channel 11 are respectively sealed by a sealing baffle 6;
A flow field side flow channel 5 is formed between the arrow-shaped flow channel and the side wall of the bipolar plate body 1, the bottom of the flow field side flow channel 5 is communicated with the discharge channel 7, and the top of the flow field side flow channel 5 is sealed.
The inlet sub-runner 10 is disposed obliquely downward at an end distant from the inlet runner 9.
The included angle alpha between the air inlet sub-runner 10 and the air inlet runner 9 is 15-75 degrees.
The width a of the air inlet channel 9 is 1-4mm.
The width b of the air inlet sub-flow passage 10 is 0.5-1.5 mm.
The width c of the discharge sub-runner 12 is 0.5-1.2mm.
The width d of the discharge flow channel 11 is 1-3mm.
The intake sub-runner 10 and the exhaust sub-runner 12 achieve under-rib convection, and simultaneously the intake runner 9 and the exhaust sub-runner 12, the intake sub-runner 10 and the exhaust runner 11 also achieve under-rib convection.
The arrow-feather flow passage is formed by fixedly connecting an arrow-feather-shaped rib plate 13 with the bipolar plate body 1, and the cross section area of the air inlet sub-flow passage is equal to or slightly larger than the cross section area of the arrow-feather-shaped rib plate 13.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. The arrow-shaped proton exchange membrane fuel cell bipolar plate is characterized by comprising a bipolar plate body, wherein an air inlet and an air inlet channel communicated with the air inlet are arranged at the top of the bipolar plate body, an outlet and an exhaust channel communicated with the outlet are arranged at the bottom of the bipolar plate body, an interdigital flow field is arranged in the bipolar plate body, and the interdigital flow field comprises a plurality of arrow-shaped flow channels which are horizontally arranged and vertically arranged;
The arrow-shaped flow passage comprises a vertically arranged air inlet flow passage and air inlet sub-flow passage groups symmetrically arranged on two sides of the air inlet flow passage, the air inlet sub-flow passage groups comprise a plurality of air inlet sub-flow passages which are sequentially arranged from top to bottom, one end of each air inlet sub-flow passage is communicated with the air inlet flow passage, and the other end of each air inlet sub-flow passage is sealed; a gap between two adjacent air inlet sub-channels forms a discharge sub-channel; the top of the air inlet flow channel is communicated with an air inlet branch inlet arranged on the air inlet channel;
A vertically arranged discharge runner is formed in a gap between two adjacent arrow-shaped runners, one end of the discharge sub runner, which is close to the discharge runner, is communicated with the discharge runner, and one end, which is far away from the discharge runner, is sealed; the bottom of the discharge flow channel is communicated with the discharge channel; the bottom of the air inlet flow channel and the top of the discharge flow channel are respectively sealed by a sealing baffle plate;
a flow field side flow channel is formed between the arrow-shaped flow channel and the side wall of the bipolar plate body, the bottom of the flow field side flow channel is communicated with the discharge channel, and the top of the flow field side flow channel is sealed;
the air inlet sub-runner is arranged obliquely downwards at one end far away from the air inlet runner;
the arrow-feather-shaped flow passage is formed by fixedly connecting an arrow-feather-shaped rib plate with the bipolar plate body, and the cross section area of the air inlet sub-flow passage is equal to or larger than the cross section area of the arrow-feather-shaped rib plate.
2. The fleshy proton exchange membrane fuel cell bipolar plate as claimed in claim 1, wherein the inlet sub-flow passage is at an angle α of 15-75 ° to the inlet flow passage.
3. An arrow-like proton exchange membrane fuel cell bipolar plate as claimed in claim 1, wherein the width a of the inlet flow passage is 1-4mm.
4. The arrow-shaped proton exchange membrane fuel cell bipolar plate according to claim 1, wherein the width b of the air inlet sub-runner is 0.5-1.5 mm.
5. An arrow-like proton exchange membrane fuel cell bipolar plate as claimed in claim 1, wherein the width c of the exhaust sub-flow passage is 0.5-1.2mm.
6. An arrow-like proton exchange membrane fuel cell bipolar plate as claimed in claim 1, wherein the width d of the exhaust flow path is 1-3mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110626362.1A CN113314726B (en) | 2021-06-04 | 2021-06-04 | Arrow-feather-shaped bipolar plate of proton exchange membrane fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110626362.1A CN113314726B (en) | 2021-06-04 | 2021-06-04 | Arrow-feather-shaped bipolar plate of proton exchange membrane fuel cell |
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| CN113314726B true CN113314726B (en) | 2024-05-10 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114220985A (en) * | 2021-12-14 | 2022-03-22 | 清华大学 | Variable air intake type fuel cell flow field and control method thereof |
| CN114361502B (en) * | 2022-01-06 | 2023-10-10 | 江苏大学 | She Maiyan-based bionic proton exchange membrane fuel cell |
| CN114361504A (en) * | 2022-01-20 | 2022-04-15 | 哈尔滨工业大学（威海） | Proton exchange membrane fuel cell bipolar plate for accelerating purging to generate water |
| CN114512689A (en) * | 2022-02-10 | 2022-05-17 | 清华大学 | Variable air intake type fuel cell flow field and control method thereof |
| CN115275269B (en) * | 2022-08-08 | 2024-08-13 | 大连理工大学 | Vein parallel flow field structure with gas distribution area and application thereof in fuel cell |
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2021
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| EP1246289A2 (en) * | 2001-03-31 | 2002-10-02 | Samsung Electronics Co., Ltd. | Proton exchange membrane fuel cell stack |
| CN105244517A (en) * | 2015-10-12 | 2016-01-13 | 浙江工业大学 | Active drainage flow field for bipolar plate of proton exchange membrane fuel cell |
| WO2019174029A1 (en) * | 2018-03-16 | 2019-09-19 | 清华大学 | Composite bipolar plate for fuel cell and dual-channel three-dimensional flow field thereof |
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