CN113451604A - Novel metal bipolar plate of hydrogen fuel cell - Google Patents
Novel metal bipolar plate of hydrogen fuel cell Download PDFInfo
- Publication number
- CN113451604A CN113451604A CN202110709577.XA CN202110709577A CN113451604A CN 113451604 A CN113451604 A CN 113451604A CN 202110709577 A CN202110709577 A CN 202110709577A CN 113451604 A CN113451604 A CN 113451604A
- Authority
- CN
- China
- Prior art keywords
- plate
- fuel cell
- bipolar plate
- hydrogen
- anode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000001257 hydrogen Substances 0.000 title claims abstract description 30
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 30
- 239000000446 fuel Substances 0.000 title claims abstract description 21
- 239000002184 metal Substances 0.000 title claims abstract description 19
- 239000000110 cooling liquid Substances 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 abstract description 6
- 238000004080 punching Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 11
- 239000012495 reaction gas Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0206—Metals or alloys
-
- 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
- H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
-
- 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 novel metal bipolar plate of a hydrogen fuel cell, which comprises a cathode plate, an anode plate and a reinforcing surrounding plate, wherein the cathode plate, the anode plate and the reinforcing surrounding plate are welded and connected, the cathode plate and the anode plate are formed by punching and forming through a die, and a flow channel is arranged on the cathode plate and the anode plate and is formed in one step.
Description
Technical Field
The invention belongs to the technical field of fuel cell metal bipolar plates, and particularly relates to a novel hydrogen fuel cell metal bipolar plate.
Background
The bipolar plate is a key part of the proton exchange membrane fuel cell, and has the functions of providing fuel and oxidant, draining water, collecting current, conducting electricity and heat, and providing mechanical support for the cell. The bipolar plate mainly comprises graphite, metal and a composite bipolar plate, and the metal bipolar plate is the first choice in the fuel cell industry and is suitable for mass production due to the characteristics of high strength and good electric and heat conductivity. The factors influencing the performance of the bipolar plate are the design of flow channels of the flow field of the bipolar plate, and the good design of the flow field and the flow channels can ensure the discharge of water in the fuel cell, separate the anode and the cathode and ensure the good performance of the fuel cell.
Disclosure of Invention
In order to solve the problems, the invention provides a novel metal bipolar plate of a hydrogen fuel cell, which solves the problem of uneven distribution of reaction gas in the whole system and improves the flow field reaction effect of the bipolar plate and the utilization rate of a membrane electrode.
In order to realize the functions, the technical scheme adopted by the invention is as follows: the utility model provides a novel hydrogen fuel cell metal bipolar plate, includes negative plate, anode plate and strengthens the bounding wall, negative plate, anode plate and enhancement bounding wall welded connection, negative plate and anode plate are set up by mould stamping forming, be equipped with the runner on negative plate and the anode plate, runner one shot forming sets up.
Furthermore, the negative plate and the positive plate are provided with a hydrogen flow field, a hydrogen flow channel, a hydrogen inlet, a cooling liquid inlet, an oxygen outlet, a cooling liquid outlet and a hydrogen outlet, the negative plate and the positive plate are both formed by punching the same grinding tool, the flow channel is formed in one step, the whole body is provided with a hydrophobic pattern layer, the reaction area in the reaction process is ensured not to be corroded or pollute reaction gas, the flow channel is compact and tight in design, and the area of the reaction area is increased on the basis of strength. The design of the flow field is more in accordance with fluid mechanics, the problem of uneven distribution of reaction gas in the whole system is solved, and the flow field reaction effect of the bipolar plate and the utilization rate of the membrane electrode are improved.
The invention adopts the structure to obtain the following beneficial effects: the novel metal bipolar plate of the hydrogen fuel cell provided by the invention is simple to operate, compact in mechanism and reasonable in design, the design of the metal bipolar plate is more in accordance with hydrodynamics and aerodynamics, the design is more compact, the energy density is higher, the metal bipolar plate is formed in one step, the anode and the cathode are in the same design structure, the flow channel is more compact, the reaction efficiency is higher, a bipolar plate model of a bipolar plate flow field, the flow channel and the bipolar plate structure is provided, the fuel and the oxidant can be effectively separated, the uniformity of reaction gas in the whole stack is ensured, the electrochemical reaction uniformity and the temperature uniformity in different areas are ensured, the influence of concentration polarization is reduced, the reaction effect and the fuel utilization rate are improved, and the stack performance and the service life are improved; compared with a graphite bipolar plate, the bipolar plate is more suitable for flow line batch production and has high production consistency; the metal bipolar plate has lower cost, and is easier to popularize and reduce the cost of the market.
Drawings
FIG. 1 is a schematic structural diagram of a novel metal bipolar plate for a hydrogen fuel cell according to the present invention;
FIG. 2 is a front view of a novel metal bipolar plate for a hydrogen fuel cell in accordance with the present invention;
fig. 3 is a right side view of a novel metal bipolar plate for a hydrogen fuel cell of the present invention.
The hydrogen flow field comprises a cathode plate 1, a cathode plate 2, an anode plate 3, a reinforcing coaming 4, a flow channel 5, a hydrogen flow field 6, a hydrogen flow channel 7, a hydrogen inlet 8, a cooling liquid inlet 9, an oxygen inlet 10, an oxygen outlet 11, a cooling liquid outlet 12 and a hydrogen outlet.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-3, the novel metal bipolar plate for hydrogen fuel cells comprises a cathode plate 1, an anode plate 2 and a reinforcing coaming 3, wherein the cathode plate 1, the anode plate 2 and the reinforcing coaming 3 are welded and connected, the cathode plate 1 and the anode plate 2 are formed by die punch forming, a flow channel 4 is arranged on the cathode plate 1 and the anode plate 2, and the flow channel 4 is formed in one step.
The cathode plate 1 and the anode plate 2 are provided with a hydrogen flow field 5, a hydrogen flow channel 6, a hydrogen inlet 7, a cooling liquid inlet 8, an oxygen inlet 9, an oxygen outlet 10, a cooling liquid outlet 11 and a hydrogen outlet 12.
When the bipolar plate is used specifically, the bipolar plate is composed of a cathode plate 1, an anode plate 2 and a reinforcing coaming 3, and is formed into a whole by welding, wherein the cathode plate 1 and the anode plate 2 are both formed by the same grinding tool in a stamping mode, a flow channel 4 is formed in one step, the whole body is provided with a hydrophobic pattern layer, the reaction area in the reaction process is guaranteed not to be corroded or pollute reaction gas, and the flow channel 4 is compact and tight in design so as to increase the area of the reaction area on the basis of strength. The design of the flow field is more in accordance with fluid mechanics, the problem of uneven distribution of reaction gas in the whole system is solved, and the flow field reaction effect of the bipolar plate and the utilization rate of the membrane electrode are improved.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (2)
1. A novel metal bipolar plate of a hydrogen fuel cell is characterized in that: including negative plate, anode plate and enhancement bounding wall, negative plate, anode plate and enhancement bounding wall welded connection, the negative plate is set up by mould stamping forming with the anode plate, be equipped with the runner on negative plate and the anode plate, runner one shot forming sets up.
2. The novel metal bipolar plate for hydrogen fuel cell according to claim 1, wherein: the negative plate and the positive plate are provided with a hydrogen flow field, a hydrogen flow channel, a hydrogen inlet, a cooling liquid inlet, an oxygen outlet, a cooling liquid outlet and a hydrogen outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110709577.XA CN113451604A (en) | 2021-06-25 | 2021-06-25 | Novel metal bipolar plate of hydrogen fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110709577.XA CN113451604A (en) | 2021-06-25 | 2021-06-25 | Novel metal bipolar plate of hydrogen fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113451604A true CN113451604A (en) | 2021-09-28 |
Family
ID=77812713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110709577.XA Pending CN113451604A (en) | 2021-06-25 | 2021-06-25 | Novel metal bipolar plate of hydrogen fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113451604A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170271690A1 (en) * | 2014-07-29 | 2017-09-21 | Commissariat A L 'energie Atomique Et Aux Energies Alternatives | Electrochemical reactor balancing the pressure drops of the cathode/anode homogenization areas |
| CN208400945U (en) * | 2018-06-13 | 2019-01-18 | 嘉兴信普勒机电有限公司 | A kind of fuel battery metal double polar plate |
| CN211182369U (en) * | 2019-12-19 | 2020-08-04 | 畔星科技(浙江)有限公司 | Water-cooling bipolar plate structure of hydrogen fuel cell |
| CN211907585U (en) * | 2020-01-16 | 2020-11-10 | 珠海格力电器股份有限公司 | Fuel cell metal bipolar plate and fuel cell |
-
2021
- 2021-06-25 CN CN202110709577.XA patent/CN113451604A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170271690A1 (en) * | 2014-07-29 | 2017-09-21 | Commissariat A L 'energie Atomique Et Aux Energies Alternatives | Electrochemical reactor balancing the pressure drops of the cathode/anode homogenization areas |
| CN208400945U (en) * | 2018-06-13 | 2019-01-18 | 嘉兴信普勒机电有限公司 | A kind of fuel battery metal double polar plate |
| CN211182369U (en) * | 2019-12-19 | 2020-08-04 | 畔星科技(浙江)有限公司 | Water-cooling bipolar plate structure of hydrogen fuel cell |
| CN211907585U (en) * | 2020-01-16 | 2020-11-10 | 珠海格力电器股份有限公司 | Fuel cell metal bipolar plate and fuel cell |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210928 |