CN108987764B - Flow field plate and fuel cell including the same - Google Patents
Flow field plate and fuel cell including the same Download PDFInfo
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- CN108987764B CN108987764B CN201810906856.3A CN201810906856A CN108987764B CN 108987764 B CN108987764 B CN 108987764B CN 201810906856 A CN201810906856 A CN 201810906856A CN 108987764 B CN108987764 B CN 108987764B
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- 239000000446 fuel Substances 0.000 title claims abstract description 32
- 239000000758 substrate Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 239000007789 gas Substances 0.000 description 45
- 238000009792 diffusion process Methods 0.000 description 18
- 239000012495 reaction gas Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 8
- 239000012528 membrane Substances 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
- 239000007795 chemical reaction product Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000003411 electrode reaction Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
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
- H01M8/0247—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
- H01M8/0254—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form corrugated or undulated
-
- 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 flow field plate and a fuel cell including the same. The flow field plate includes: a base having a plurality of flow channels thereon; the spiral fins are distributed in the flow channel along the length direction of the flow channel, and two ends of each spiral fin are bent towards opposite directions. The flow field plate is provided with the spiral fins in the flow channel, so that the flow of gas in the flow channel can be effectively improved, and the convection transport effect of the gas in the flow channel is enhanced.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a flow field plate and a fuel cell comprising the flow field plate.
Background
Proton Exchange Membrane Fuel Cells (PEMFCs) have the advantages of high efficiency, high energy density, and low pollution, and thus have received extensive attention from researchers in many fields. The energy density is an important index for measuring the performance of the PEMFC, and further improvement of the energy density of the cell depends on the design of a Membrane Electrode Assembly (MEA) on one hand and the reasonable design of a flow field plate on the other hand. The flow field plate design has the following main goals: the uniform distribution of the reaction gas in the flow channel surface is ensured, the reaction gas is favorably conveyed to the gas diffusion layer, and the discharge of the water generated by the cathode reaction is promoted.
The traditional flow field plate geometry structure at present mainly comprises parallel flow channels, serpentine flow channels or interdigital flow channels, wherein the flow of gas in the parallel and serpentine flow channels is one-dimensional or quasi one-dimensional flow along the length direction of the flow channels, the flow field plate can have the phenomenon of insufficient local gas supply under the condition of high current density, the polarization of gas concentration difference is increased, and the performance of a battery is reduced; the flow in the interdigital flow channel is two-dimensional flow, gas flows along the flow channel, and simultaneously has a velocity component rushing to the gas diffusion layer under the action of forced convection, and the interdigital flow field plate has the defects of large pressure loss, easy occurrence of membrane dryness under low current density and the like.
Thus, existing flow field plates for fuel cells remain to be improved.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, it is an object of the present invention to propose a flow field plate and a fuel cell comprising the flow field plate. The flow field plate is provided with the spiral fins in the flow channel, so that the flow of gas in the flow channel can be effectively improved, and the convection transport effect of the gas in the flow channel is enhanced.
In one aspect of the invention, a flow field plate is provided. According to an embodiment of the invention, the flow field plate comprises: a base having a plurality of flow channels thereon; the spiral fins are distributed in the flow channel along the length direction of the flow channel, and two ends of each spiral fin are bent towards opposite directions. Therefore, when the gas passes through the flow channel with the spiral fins, under the action of the spiral fins, the gas flows along the length direction of the flow channel, and simultaneously secondary flow is carried out in the cross section of the flow channel, so that the flow of the gas in the whole flow channel has three-dimensional characteristics, and the convection transport effect of the gas in the flow channel is enhanced. The flow field plate is applied to the fuel cell, on one hand, the flow field plate is favorable for transmitting reaction gas from the flow channel to a gas diffusion layer of the fuel cell, and on the other hand, the flow field plate is also favorable for transmitting electrode reaction products from the gas diffusion layer to the flow channel, so that the concentration of the reaction gas on the surface of the electrode is increased, and the power generation performance of the cell is improved.
In addition, the flow field plate according to the above embodiment of the present invention may also have the following additional technical features:
in some embodiments of the present invention, an included angle between the spiral ribs and the length direction of the flow channel is 45 ° to 135 °.
In some embodiments of the invention, the cross-section of the spiral rib in the length direction is triangular, rectangular, trapezoidal, parallelogram, semicircular or quadrilateral with rounded corners.
In some embodiments of the invention, a plurality of the spiral ribs are equally spaced along the length of the flow channel.
In some embodiments of the invention, the cross-sectional shape of the flow channel in the length direction is semicircular.
In some embodiments of the present invention, a ratio of a height of the spiral rib to a depth of the flow channel is 0.2 to 0.4.
In some embodiments of the present invention, the flow channels are parallel flow channels, serpentine flow channels or interdigitated flow channels.
In some embodiments of the invention, the substrate of the flow field plate is formed of at least one of stainless steel, titanium and titanium alloy.
In some embodiments of the invention, the substrate of the flow field plate is formed of graphite.
In another aspect of the present invention, a fuel cell is provided. According to an embodiment of the present invention, the fuel cell includes: a cathode flow field plate and an anode flow field plate, at least one of which is a flow field plate of the above-described embodiments. By adopting the flow field plate of the embodiment, the fuel cell of the invention can enable the flow of the gas in the flow field plate flow channel to have three-dimensional characteristics, thereby increasing the convection transport effect of the gas in the flow channel, being beneficial to the transmission of the reaction gas from the flow channel to the gas diffusion layer of the fuel cell on the one hand, and being beneficial to the transmission of the electrode reaction product from the gas diffusion layer to the flow channel on the other hand, thereby increasing the concentration of the reaction gas on the surface of the electrode. Therefore, the fuel cell of the invention has higher power generation performance.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic representation of the structure of a flow field plate according to an embodiment of the invention;
FIG. 2 shows a front view of a flow field plate according to an embodiment of the invention;
FIG. 3 shows a side view of a flow field plate according to an embodiment of the invention;
FIG. 4 shows a top view of a flow field plate according to an embodiment of the invention;
FIG. 5 shows a schematic structural view of a helical rib according to an embodiment of the present invention;
FIG. 6 is a schematic view showing the structure of a fuel cell in example 1;
FIG. 7 is a graph showing the change of the velocity components in the X, Y and Z directions in the flow channel of example 1 along the length direction (Z direction) of the flow channel;
FIG. 8 shows oxygen (O) in the flow channel length direction (Z direction) of example 1 and comparative example2) A molar concentration distribution;
FIG. 9 shows oxygen (O) in the direction perpendicular to the flow channel (Y direction) in example 1 and comparative example2) Molar concentration distribution.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "thickness", "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In one aspect of the invention, a flow field plate is provided. According to an embodiment of the present invention, referring to fig. 1 to 4, the flow field plate includes: a base 100 and a plurality of spiral fins 200. The base 100 has a plurality of channels 110, a plurality of spiral fins 200 are distributed in the channels 110 along the length direction of the channels 110, and both ends of the spiral fins 200 are bent in opposite directions. Therefore, when the gas passes through the flow channel with the spiral fins, under the action of the spiral fins, the gas flows along the length direction of the flow channel, and simultaneously secondary flow is carried out in the cross section of the flow channel, so that the flow of the gas in the whole flow channel has three-dimensional characteristics, and the convection transport effect of the gas in the flow channel is enhanced. The flow field plate is applied to the fuel cell, on one hand, the flow field plate is favorable for transmitting reaction gas from the flow channel to a gas diffusion layer of the fuel cell, and on the other hand, the flow field plate is also favorable for transmitting electrode reaction products from the gas diffusion layer to the flow channel, so that the concentration of the reaction gas on the surface of the electrode is increased, and the power generation performance of the cell is improved.
According to the embodiment of the present invention, as shown in fig. 4, the included angle α between the plurality of spiral fins 200 and the length direction of the flow channel 110 is 45 ° to 135 °. Therefore, the gas can further flow along the length direction of the flow passage 110, and simultaneously, the spiral secondary flow can be generated in the cross section of the flow passage 110, so that the convection transport effect of the gas in the flow passage 110 is increased.
According to an embodiment of the present invention, as shown in fig. 5, the cross-section of the spiral rib 200 in the length direction may be triangular, rectangular, trapezoidal, parallelogram, semicircular, or quadrilateral with rounded corners. Specifically, in fig. 5, a is a schematic structural view of a spiral rib having a triangular cross section; b is a structural schematic diagram of a spiral rib with a rectangular cross section; c is a structural schematic diagram of a spiral rib with a trapezoidal section; d is a structural schematic diagram of a spiral rib with a parallelogram cross section; e is a structural schematic diagram of a spiral rib with a semicircular section; f is a structural schematic diagram of a spiral rib with a quadrangular cross section with round corners. In fig. 1 to 4, the spiral fin 200 has a triangular cross section in the longitudinal direction.
According to an embodiment of the present invention, the distribution pitch of the plurality of spiral fins 200 in the flow channel 110 is not particularly limited, and the plurality of spiral fins 200 may be equally or unequally distributed along the length direction of the flow channel 110. In some embodiments, a plurality of spiral fins 200 are equally spaced along the length of the flow channel 110, and the spacing between two adjacent spiral fins 200 can be proportionally adjusted according to the length of the flow channel 110.
According to an embodiment of the present invention, the height of the spiral rib 200 may be proportionally designed according to the depth of the runner 110. According to the embodiment of the present invention, as shown in FIG. 2, the ratio of the height h of the spiral rib 200 to the depth d of the flow channel 110 is 0.2-0.4. Therefore, the gas can further flow along the length direction of the flow passage 110, and simultaneously, the spiral secondary flow can be generated in the cross section of the flow passage 110, so that the convection transport effect of the gas in the flow passage 110 is increased. When the ratio of h to d is too small (<0.2), the convection transport effect of the gas in the flow channel is not obvious; when the ratio of h to d is too large (>0.4), the helical fins may impede the discharge of the produced water under high current density conditions.
According to an embodiment of the present invention, the cross-sectional shape of the flow channel 110 in the length direction may be a semicircle, and when the cross-section of the flow channel 100 in the length direction is a semicircle, the depth d of the flow channel 100 is the radius of the semicircle of the cross-section of the flow channel 100.
According to an embodiment of the present invention, the flow channels 110 may be parallel flow channels, serpentine flow channels or interdigital flow channels. That is, the spiral fins 200 are formed in the parallel flow channels, the serpentine flow channels or the interdigital flow channels, so that the flow of gas in the flow channels can be effectively improved, the convection transport effect of the gas in the flow channels is enhanced, and the power generation performance of the fuel cell with the flow field plate is improved.
The material used to form the flow field plate substrate 100 is not particularly limited and can be selected by one skilled in the art according to actual needs, according to embodiments of the present invention. In some embodiments, the substrate 100 of the flow field plate may be formed of at least one of stainless steel, titanium, and titanium alloys. Thus, the helical fins 200 may be formed in the flow channels 110 by a stamping and forming process of the substrate 100 of the flow field plate. In other implementations, the substrate 100 of the flow field plate may be formed of graphite. Thus, the helical fins 200 may be formed in the flow channels 110 by machining the substrate 100 of the flow field plate.
In another aspect of the present invention, a fuel cell is provided. According to an embodiment of the present invention, the fuel cell includes: a cathode flow field plate and an anode flow field plate, at least one of which is a flow field plate of the above-described embodiments. By adopting the flow field plate of the embodiment, the fuel cell of the invention can enable the flow of the gas in the flow field plate flow channel to have three-dimensional characteristics, thereby increasing the convection transport effect of the gas in the flow channel, being beneficial to the transmission of the reaction gas from the flow channel to the gas diffusion layer of the fuel cell on the one hand, and being beneficial to the transmission of the electrode reaction product from the gas diffusion layer to the flow channel on the other hand, thereby increasing the concentration of the reaction gas on the surface of the electrode. Therefore, the fuel cell of the invention has higher power generation performance.
It should be noted that the features and advantages described above with respect to the flow field plates are equally applicable to the fuel cells described above and will not be described in detail here.
The invention will now be described with reference to specific examples, which are intended to be illustrative only and not to be limiting in any way.
Example 1
The proton exchange membrane fuel cell prepared by the flow field plate of the invention has a single flow channel structure as shown in fig. 6 (in fig. 6, 1-cathode flow channel, 2-spiral fin with triangular section, 3-cathode gas diffusion layer, 4-cathode catalyst layer, 5-proton exchange membrane, 6-anode catalyst layer, 7-anode gas diffusion layer, and 8-anode flow channel). in the embodiment, the cathode flow field plate is made of stainless steel, and the spiral fin is formed in the cathode flow channel by punching the cathode flow field plate, wherein the cross section of the flow channel is semicircular, the radius of the flow channel is 0.75mm, the thickness of the flow field plate is 0.1mm, and the length of the flow field plate is 100 mm.
The cathode flow field plate was in contact with a cathode gas diffusion layer 3 (carbon paper) having a thickness of 200mm, a cathode catalyst layer 4 having a thickness of 10mm was coated on the cathode gas diffusion layer 3, and a proton exchange membrane 5 having a thickness of 30 μm was used.
Comparative example 1
A proton exchange membrane fuel cell was fabricated in substantially the same manner as in example 1, except that the cathode flow channels did not have spiral fins therein.
Comparative example 2
A proton exchange membrane fuel cell was fabricated in substantially the same manner as in example 1, except that the spiral fins in the cathode flow channels were perpendicular to the length direction Z of the cathode flow channels (corresponding to an angle α of 90 degrees in fig. 2).
To simplify the calculation, the operation of the fuel cells of example 1 and comparative examples 1 and 2 was simulated hydrodynamically by considering only a single flow path as shown in FIG. 6 in the PEM fuel cell, and the current density (I) was 1A/cm2Stoichiometric number of 2.5, cathode inlet air mass flow of 1.66X 10-6kg/s. O in the cathode catalyst layer 42Is consumed in an amount of
The amount of steam generated is
In the formula ofCLThe thickness of the cathode catalyst layer, F is the Faraday constant,
is the molar mass of the oxygen gas,
is the molar mass of water.
The trend of the velocity components in the three directions of X, Y and Z in example 1 along the length direction Z of the flow channel is shown in fig. 7, and in addition to the velocity component along the length direction Z of the flow channel, there are significant velocity components in both directions of X and Y. O at the interface of gas diffusion layer and catalytic layer2The change in molar concentration in the longitudinal direction Z of the flow channel is shown in FIG. 8, and O in example 12The molar concentrations were greater than in comparative examples 1 and 2. FIG. 9 further illustrates O2Distribution of molarity in the vertical direction Y of the flow channel, bottom O of the flow channel in example 12Is less than in comparative examples 1 and 2, and example 1 has O in the upper part of the flow channel, the cathode gas diffusion layer 3 and the cathode catalyst layer 42The molar concentrations were greater than in comparative examples 1 and 2.
The results show that the gas flows in the flow channel with the spiral fins in a three-dimensional mode, the convection transport effect of the gas in the flow channel is enhanced, and the reaction gas is favorably transmitted from the flow channel to the gas diffusion layer on one hand, and the reaction products are favorably transmitted from the gas diffusion layer to the flow channel on the other hand. This will increase the concentration of the reaction gas on the electrode surface, improving the power generation performance of the battery.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. A flow field plate for a fuel cell, comprising:
a base having a plurality of flow channels thereon;
the spiral fins are distributed in the flow channel along the length direction of the flow channel, and two ends of each spiral fin are bent towards opposite directions;
the ratio of the height of the spiral fins to the depth of the flow channel is 0.2-0.4;
the included angle between the spiral ribs and the length direction of the flow channel is 45-135 degrees.
2. A flow field plate as claimed in claim 1, in which the spiral fins are triangular, rectangular, trapezoidal, parallelogram-shaped, semi-circular or quadrilateral in cross-section in the length direction with rounded corners.
3. A flow field plate as claimed in any one of claims 1 to 2, wherein a plurality of the spiral ribs are equally spaced along the length of the flow channel.
4. A flow field plate as claimed in claim 1, in which the cross-sectional shape of the flow channels in the length direction is semi-circular.
5. A flow field plate as claimed in claim 4, in which the flow channels are parallel channels, serpentine channels or interdigitated channels.
6. A flow field plate, as claimed in claim 1, characterised in that the substrate of the flow field plate is formed from at least one of stainless steel, titanium and titanium alloy.
7. A flow field plate as claimed in claim 1, in which the substrate of the flow field plate is formed from graphite.
8. A fuel cell, comprising: a cathode flow field plate and an anode flow field plate, at least one of which is a flow field plate according to any one of claims 1 to 7.
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| CN201810906856.3A CN108987764B (en) | 2018-08-10 | 2018-08-10 | Flow field plate and fuel cell including the same |
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| CN201810906856.3A CN108987764B (en) | 2018-08-10 | 2018-08-10 | Flow field plate and fuel cell including the same |
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| CN108987764B true CN108987764B (en) | 2021-08-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111370728B (en) * | 2020-03-18 | 2021-03-09 | 清华大学 | Fuel cell polar plate flow field and fuel cell polar plate |
| CN112331878B (en) * | 2020-11-06 | 2022-08-26 | 青岛科技大学 | Proton exchange membrane fuel cell |
| CN113764681B (en) * | 2021-08-25 | 2023-03-21 | 厦门大学 | Self-adaptive flow field regulation and control type fuel cell polar plate structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921206A (en) * | 2005-08-26 | 2007-02-28 | 比亚迪股份有限公司 | Flow field plate for fuel battery |
| CN201796995U (en) * | 2010-03-30 | 2011-04-13 | 上海恒劲动力科技有限公司 | Plate for fuel cell and fuel cell thereof |
| CN103413956A (en) * | 2013-08-14 | 2013-11-27 | 天津大学 | Proton exchange membrane fuel cell channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20080299418A1 (en) * | 2007-06-04 | 2008-12-04 | Gm Global Technology Operations, Inc. | Fuel Cell Stack with Improved End Cell Performance |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921206A (en) * | 2005-08-26 | 2007-02-28 | 比亚迪股份有限公司 | Flow field plate for fuel battery |
| CN201796995U (en) * | 2010-03-30 | 2011-04-13 | 上海恒劲动力科技有限公司 | Plate for fuel cell and fuel cell thereof |
| CN103413956A (en) * | 2013-08-14 | 2013-11-27 | 天津大学 | Proton exchange membrane fuel cell channel |
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