CN210467987U - Air-cooled fuel cell bipolar plate - Google Patents
Air-cooled fuel cell bipolar plate Download PDFInfo
- Publication number
- CN210467987U CN210467987U CN201921784016.0U CN201921784016U CN210467987U CN 210467987 U CN210467987 U CN 210467987U CN 201921784016 U CN201921784016 U CN 201921784016U CN 210467987 U CN210467987 U CN 210467987U
- Authority
- CN
- China
- Prior art keywords
- plate
- flow field
- cathode
- cathode flow
- welding
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model discloses an air-cooled fuel cell bipolar plate belongs to fuel cell technical field. The metal bipolar plate comprises an anode side plate, a cathode flow field plate and a cathode current collecting plate. Two openings which correspond to the anode side polar plate and the cathode flow field plate in an overlapping mode are public pipelines, and the peripheries of the two openings are fixed and sealed by methods such as welding. The other surface of the cathode flow field plate is overlapped with the cathode collector plate and fixed by welding and other methods. The anode side plate and the membrane electrode are sealed by bonding, the periphery of a common pipeline formed by welding the anode side plate and the cathode flow field plate is sealed by a sealing gasket, and the height of the sealing gasket after the assembled battery is compressed is matched with the height of the cathode flow field plate and the height of the collector plate after the assembled battery is compressed. The parts of the bipolar plate are all ultrathin metal plates, the stamping and welding process is simple, the manufacturing and subsequent assembly processes are relatively simple, and the bipolar plate is very suitable for large-scale processing and manufacturing, reduces the cost and is practically applied.
Description
Technical Field
The utility model belongs to the technical field of fuel cell, concretely relates to air-cooled fuel cell bipolar plate.
Background
Proton Exchange Membrane Fuel Cells (PEMFCs) are low-noise, high-energy-conversion-efficiency, zero-emission power generation devices that can be started quickly at room temperature. The proton exchange membrane fuel cell can be used for a mobile power supply, a portable power supply, an aviation power supply, a vehicle power supply, a fixed power station and the like, can meet the power utilization requirements of multiple fields, and is one of the fuel cells closest to practical application.
The bipolar plate is one of the important components of the proton exchange membrane fuel cell, plays an important role in separating an oxidant and a reducing agent, distributing fluid, collecting current, managing generated water and managing generated heat, and maintains the cell in a good working state. In a proton exchange membrane fuel cell, the conventional bipolar plates mainly include a graphite bipolar plate, a metal bipolar plate, a composite bipolar plate, and the like. The graphite bipolar plate and the composite bipolar plate have some factors which limit the application environment and improve the performance, for example, the graphite bipolar plate has poor shock resistance, cannot be made thinner, the assembly force is difficult to control, and the cost is high; although the composite bipolar plate has great improvement in mechanical strength, the composite bipolar plate is relatively complex to machine and assemble due to more adopted materials and parts, the mass specific power and the volume specific power are difficult to further improve, and the cost is difficult to further reduce. In contrast, the metal bipolar plate can be processed to be very light and thin, the mass specific power and the volume specific power are greatly improved, and meanwhile, the requirements of excellent conductivity, good heat transfer performance, high mechanical strength and the like can be met. And the polar plate is processed by stamping, so that the method is suitable for large-scale production and can strictly control the cost.
In air-cooled fuel cells, graphite bipolar plates are commonly used. In chinese patents 201510449567.1 and 201610333293.4, porous graphite plates (also porous metal plates) were used as the cathode plate to reduce the weight of the cathode plate. In chinese patent 201010217390.X, a raw material for preparing a graphite bipolar plate and a method for preparing a bipolar plate are described. Neither technique reduces the weight of the bipolar plate compared to the use of a thin metal plate for the bipolar plate. In the chinese patent 200710056414.6, an anode flow field plate and a cathode flow field plate (stainless steel plate is 0.1-0.2mm thick) are prepared by stamping technology, a light aluminum alloy is used as a support plate between an anode plate and a cathode plate, and the cathode plate is a square with a side length of 1.5mm or a semicircle with a radius of 0.75 mm. The anode flow field plate, the supporting plate and the cathode plate are directly overlapped and combined together and sealed by the sealing ring, so that the surface resistance is large, the weight is heavy, the structure is complex, and the device is not suitable for mass production. In the chinese patent 200820153416.7, the bipolar plate is composed of three parts, one is an anode flow field stamping plate (the thickness of the metal plate is 0.05-0.2mm), the other is a cathode flow field stamping plate, and a plastic member with holes, the anode flow field plate and the cathode flow field plate are connected together by welding or bonding, the plastic member and the anode flow field plate are connected together by welding, where the plastic member and the metal flow field plate can be welded together, which is difficult to be realized by the conventional technology, and the welding is not real, which can cause the hydrogen gas to be not sealed, and the hydrogen gas leaks. In the chinese patent 201611012620.2, a hydrogen side plate and an air flow field plate with a cambered cross-section are welded together, and then support bodies at two ends of the air flow field plate and the hydrogen side plate are bonded together to form a common pipeline for hydrogen, so that the structure is complex, and a colloid bonding technology is used at multiple places, and more technical guarantees are required to be provided in the aspects of sealing, service life, environmental adaptability and the like.
Due to the advantages of metal bipolar plates, their use is becoming more and more widespread. The more parts are used and the more types of materials are used, the higher the processing and assembling cost is, the higher the probability of problems in the processing, assembling and running processes is, the higher the subsequent maintenance and repair cost is, and the disadvantages of continuous running of the fuel cell are caused. The present invention has been made to overcome the above disadvantages.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an air-cooled fuel cell bipolar plate, which is made of a metal plate with the thickness of 0.01-1 mm; the structure only has three parts, namely an anode side plate, a cathode flow field plate and a cathode current collecting plate, and only has stamping and welding assembly processes. Therefore, the utility model discloses an ultra-thin ultralight metal bipolar plate can further reduce bipolar plate's processing cost, further improves the quality specific power and the volume specific power of fuel cell pile.
The utility model provides an air-cooled fuel cell bipolar plate, bipolar plate include anode side polar plate 1, negative pole flow field board 2 and negative pole current collector 3 in proper order, the both ends of anode side polar plate 1 are equipped with the common line a 5 that is parallel mutually, the both ends of negative pole flow field board 2 are equipped with the common line b 13 that is parallel mutually, the middle zone of negative pole flow field board 2 is the negative pole flow field, be equipped with sealed the pad 10 on the bipolar plate, sealed pad 10 is equipped with sealed common line 12 of filling up, sealed pad 10 simultaneously is equipped with air guide channel 11, air guide channel 11 is a plurality of parallel arrangement's strip guiding gutter, and the sealed common line 12 of filling up of one end intercommunication of every guiding gutter, other end intercommunication positive pole flow field, the air flow direction in the air guide channel 11 is perpendicular with the air flow direction of the sealed common line, The common pipe b 13 and the gasket common pipe 12 are the same in shape and size and are arranged correspondingly.
Furthermore, in the above technical solution, welding lines a 6 are respectively arranged on opposite surfaces of the anode side plate 1 and the cathode flow field plate 2, the welding lines a 6 are located around the common pipe a 5 and the common pipe b 13, and the anode side plate 1 and the cathode flow field plate 2 are connected by the welding lines a 6; and welding lines b 7 are respectively arranged on the opposite surfaces of the cathode flow field plate 2 and the cathode current collecting plate 3, the welding lines b 7 are positioned at the two ends of the cathode flow field on the side, close to the common pipeline b 13, of the cathode flow field plate 2 and at the two ends of the cathode current collecting plate 3, and the cathode flow field plate 2 and the cathode current collecting plate 3 are connected through the welding lines b 7.
Further, in the above technical solution, the welding modes among the anode side plate 1, the cathode flow field plate 2, and the cathode current collecting plate 3 include laser welding, electron beam welding, resistance welding, diffusion welding, ultrasonic welding, and high frequency welding.
Further, in the above technical solution, the anode side plate 1 is a flat plate, the cathode current collecting plate 3 is a perforated plate, the aperture ratio is 25-60%, and the aperture is 1-3 mm.
Further, in the above technical solution, the cathode flow field portion of the cathode flow field plate 2 is corrugated or corrugated, the height of each corrugation or corrugation is 0.3-3mm, and the width between adjacent corrugations or corrugations is 0.5-3 mm. Preferably each corrugation or flute has a height of 0.5-2mm and a width between adjacent corrugations or flutes of 1-2.5 mm.
Furthermore, in the above technical solution, the anode electrode plate 1, the cathode flow field plate 2 and the cathode current collecting plate 3 are all made of metal.
Further, in the above technical solution, the metal is a stainless steel plate, a titanium alloy plate, an aluminum alloy plate, a nickel alloy or a copper plate.
Further, in the above technical solution, the thickness of the anode side plate 1 is 0.03-1 mm; the thickness of the cathode flow field plate 2 is 0.03-0.5 mm; the thickness of the cathode collector plate 3 is 0.01-0.2 mm. Preferably, the thickness of the anode side plate 1 is 0.05-0.1 mm; the thickness of the cathode flow field plate 2 is 0.05-0.1 mm; the thickness of the cathode collector plate 3 is 0.02-0.05 mm.
Further, in the above technical solution, the thickness of the sealing gasket 10 is equal to the thickness of the cathode flow field plate 2 and the cathode current collecting plate 3 stacked together.
The utility model also provides a preparation method of air-cooled fuel cell bipolar plate, including any one of following preparation methods: welding an anode side plate 1, a cathode flow field plate 2 and a cathode current collecting plate 3 along the welding line position, sticking a sealing gasket 10 to a common pipeline at two sides of the cathode flow field plate according to the direction of an air guide channel facing the cathode flow field plate 3, and leading the thickness of the sealing gasket 10 to be consistent with the sum of the thicknesses of the cathode flow field plate 2 and the cathode current collecting plate 3 through compression, thus obtaining the air-cooled fuel cell bipolar plate.
According to the utility model discloses, this thin metal bipolar plate has following advantage:
1. the structure is simple, the processing and the manufacturing are easy, the large-scale production is suitable, and the cost is greatly reduced;
2. the process and requirements for assembling the galvanic pile are relatively simple, the consistency of the galvanic pile is improved, the ohmic impedance is reduced, and the performance of the battery is improved;
3. the bipolar plate is ultra-light and ultra-thin, the mass and the thickness of the bipolar plate are greatly reduced, the mass specific power of the galvanic pile is greatly improved, and the bipolar plate is the best choice for aviation power supplies and portable power supplies.
Drawings
FIG. 1 is a schematic view of a bipolar plate-membrane electrode assembly;
FIG. 2 is a schematic view of bipolar plate welding;
FIG. 3 is a schematic view of a corrugated flow field plate;
FIG. 4 is a schematic view of a gasket construction;
figure 5 shows the performance of the fuel cell of example 1.
The schematic diagram illustrates, 1, an anode side plate; 2. a cathode flow field plate; 3. a cathode collector plate; 4. a bipolar plate; 5. A common pipe a; 6. a welding line a; 7. a welding line b; 8. a membrane electrode a; 9. a membrane electrode b; 10. a gasket; 11. an air guide channel; 12. a gasket common conduit; 13. a common conduit b.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
As shown in figure 1, the air-cooled fuel cell bipolar plate is provided with an anode side plate 1, a cathode flow field plate 2 and a cathode collector plate 3 in sequence, wherein two ends of the anode side plate 1 are provided with common pipelines a 5 which are parallel to each other, two ends of the cathode flow field plate 2 are provided with common pipelines b 13 which are parallel to each other, the middle area of the cathode flow field plate 2 is a cathode flow field, the bipolar plate is provided with a sealing gasket 10, the sealing gasket 10 is provided with a sealing gasket common pipeline 12, one surface of the sealing gasket 10 is provided with an air guide channel 11, the air guide channel 11 is a plurality of strip-shaped flow guide grooves which are arranged in parallel, one end of each flow guide groove is communicated with the sealing gasket common pipeline 12, the other end is communicated with the anode flow field, the air flow direction in the air guide channel 11 is vertical, The common pipeline b 13 and the sealing gasket common pipeline 12 are the same in shape and size and are arranged correspondingly; welding lines a 6 are respectively arranged on the opposite surfaces of the anode side plate 1 and the cathode flow field plate 2, the welding lines a 6 are positioned on the peripheries of a common pipeline a 5 and a common pipeline b 13, and the anode side plate 1 and the cathode flow field plate 2 are connected through the welding lines a 6; and welding lines b 7 are respectively arranged on the opposite surfaces of the cathode flow field plate 2 and the cathode current collecting plate 3, the welding lines b 7 are positioned at the two ends of the cathode flow field close to one side of the common pipeline b 13 on the cathode flow field plate 2 and at the two ends of the cathode current collecting plate 3, and the cathode flow field plate 2 and the cathode current collecting plate 3 are connected through the welding lines b 7.
The anode side polar plate 1, the cathode flow field plate 2 and the cathode collector plate 3 are mutually overlapped and assembled to form a complete bipolar plate 4; the three plates prepared were identical in width direction, the anode side plate 1 and the cathode flow field plate 2 were identical in length direction, and the flow field portion of the cathode flow field plate 2 and the cathode current collecting plate 3 were identical in length direction.
Specifically, the utility model discloses select three sheet metal part to be stainless steel anode side polar plate 1 that thickness is 0.05mm respectively, stainless steel cathode flow field board 2 that thickness is 0.05mm and copper cathode collector plate 3 that thickness is 0.03 mm. And pressing the flow field part of the cathode flow field plate 2 into a corrugated plate with the height of 2mm and the gap width of 2mm, and simultaneously preparing a cathode current collecting plate 3 with the aperture of 2mm and the aperture ratio of 50%. Bipolar junctionThe common pipelines at two ends of the anode side polar plate 1 in the plate are manufactured by machining, stamping, laser cutting and linear cutting. The cathode flow field plate 2 and the cathode current collecting plate 3 are welded together by laser welding, and then the anode side plate 1 and the cathode flow field plate 2 are welded together by laser welding to form a complete bipolar plate 4. The surface of the complete bipolar plate 4 is treated by silver plating and the like to improve the conductivity and corrosion resistance. Selecting silicon rubber as the sealing gasket 10 for the periphery of the public pipeline, and assembling and adapting the sealing gasket after the assembled battery is compressed to ensure that the height value of the sealing gasket is consistent with the sum of the heights of the cathode flow field plate 2 and the cathode current collecting plate 3. As shown in fig. 1, two membrane electrodes 8 and 9 are combined with a complete bipolar plate, so that the anode side plate 1 and the membrane electrode 8 are sealed and enclosed to form a fuel gas transmission channel; the anode side plate 1 and the cathode flow field plate 2 surround to form a cooling air channel. The flow field part of the cathode flow field plate 2, the cathode current collecting plate 3 and the other membrane electrode 9 are encircled to form an air channel participating in electrochemical reaction. A150-energy-saving stack is assembled by a plurality of groups of the components in series, and when the temperature of room temperature is 20 ℃ and the relative humidity is 35 percent, the partial pressure (gauge pressure) of fuel hydrogen is 0.05MPa, and when air cooling heat dissipation is adopted, the current density reaches 0.7A/cm2The output power reaches 6.3kW, and the performance of the galvanic pile is shown in figure 4. According to the utility model discloses the mass ratio power that obtains of calculation is 900W/kg, is higher than 250W/kg of graphite bipolar plate galvanic pile far away. This means that, when generating electricity 6.3kW simultaneously, the utility model discloses ultralight metal bipolar plate galvanic pile weight is 7kg, and is 25.2kg with graphite bipolar plate galvanic pile weight. When supposing to use on the unmanned aerial vehicle, use the utility model discloses ultralight metal bipolar plate galvanic pile technique can have 18kg loads more than graphite bipolar plate galvanic pile technique, perhaps carries 1.8kg hydrogen (calculate according to 10% hydrogen storage rate) more and realizes the flight of longer time.
The utility model discloses a thin metal bipolar plate has bipolar plate all functions: including the delivery and distribution of fuel gas, oxidant gas (air), and cooling air; discharging tail gas, reaction products and cooling air; collection, delivery and conduction of electrical current; the heat generated by the electrochemical reaction is discharged.
Example 2
Selecting three sheet metal partsRespectively a titanium alloy anode side polar plate 1 with the thickness of 0.08mm, an aluminum cathode flow field plate 2 with the thickness of 0.3mm and a copper cathode collector plate 3 with the thickness of 0.02 mm. The flow field part of the cathode flow field plate 2 is pressed into a corrugated shape with the height of 1mm and the gap width of 1.5mm, and meanwhile, the cathode current collecting plate 3 with the aperture of 1.5mm and the aperture ratio of 40% is manufactured. The cathode flow field plate 2 and the cathode flow field plate 3 are welded together by laser welding, and then the anode side plate and the cathode flow field plate 2 are welded together by laser welding to form a complete bipolar plate 4. See example 1 for additional experimental procedures. The fuel cell is assembled into a 70-power-saving stack, when the room temperature is 18 ℃ and the relative humidity is 31 percent, the partial pressure (gauge pressure) of the fuel hydrogen is 0.05MPa, and when air cooling heat dissipation is adopted, the current density reaches 0.5A/cm2The output power reaches 2.4 kW. According to the utility model discloses the mass ratio power that obtains of calculation is 950W/kg, is higher than 250W/kg of graphite bipolar plate galvanic pile far away.
Example 3
Three thin metal plate parts are selected, namely a titanium anode side polar plate 1 with the thickness of 0.3mm, an aluminum alloy cathode flow field plate 2 with the thickness of 0.1mm and a stainless steel cathode collector plate 3 with the thickness of 0.05. The flow field part of the cathode flow field plate 2 is pressed into a corrugated shape with the height of 0.5mm and the gap width of 1.5mm, and meanwhile, the cathode current collecting plate 3 with the aperture of 2.5mm and the aperture ratio of 30% is manufactured. The cathode flow field plate 2 and the cathode flow field plate 3 are welded together by resistance welding, and then the anode side plate and the cathode flow field plate 2 are welded together by laser welding to form a complete bipolar plate 4. See example 1 for additional experimental procedures. Assembling to 70 power saving stack, when the room temperature is 22 deg.C and the relative humidity is 36%, the fuel hydrogen partial pressure (gauge pressure) is 0.05MPa, and when the air cooling is adopted for heat dissipation, the current density reaches 0.5A/cm2The output power reaches 2.2 kW.
Example 4
Three thin metal plate parts are selected, namely a nickel alloy anode side plate 1 with the thickness of 0.06mm, a stainless steel cathode flow field plate 2 with the thickness of 0.06mm and a copper cathode collector plate 3 with the thickness of 0.03 mm. The flow field part of the cathode flow field plate 2 is pressed into a corrugated shape with the height of 1mm and the gap width of 2mm, and meanwhile, the cathode current collecting plate 3 with the aperture of 1.5mm and the aperture ratio of 55% is manufactured. By resistance weldingThe cathode flow field plate 2 and the cathode collector plate 3 are welded together, and then the anode side plate and the cathode flow field plate 2 are welded together by laser welding to form a complete bipolar plate 4. See example 1 for additional experimental procedures. Assembling to 70 power saving stack, at room temperature of 25 deg.C and relative humidity of 40%, when fuel hydrogen partial pressure (gauge pressure) is 0.05MPa, and air cooling is adopted for heat dissipation, current density reaches 0.6A/cm2The output power reaches 2.8 kW.
The metal stamped bipolar plate of the present invention has been described with a simple structure, and it should be understood by those skilled in the art that the present invention is only the specific embodiments of the present invention, and is not intended to limit the present invention. Any modification, scaling, equivalent replacement or improvement made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims (9)
1. An air-cooled fuel cell bipolar plate, characterized in that: the bipolar plate sequentially comprises an anode side plate (1), a cathode flow field plate (2) and a cathode collector plate (3), wherein two ends of the anode side plate (1) are provided with mutually parallel common pipelines a (5), two ends of the cathode flow field plate (2) are provided with mutually parallel common pipelines b (13), and the middle area of the cathode flow field plate (2) is a cathode flow field; be equipped with sealed pad (10) on the bipolar plate, be equipped with sealed public pipeline (12) of packing up on sealed pad (10), sealed pad (10) simultaneously is equipped with air guide channel (11), air guide channel (11) are a plurality of parallel arrangement's strip guiding gutter, and sealed public pipeline (12) of the one end intercommunication of every guiding gutter, other end intercommunication positive pole flow field, the air current direction in air guide channel (11) is perpendicular with the air current direction of flowing through sealed public pipeline (12) of packing up, public pipeline a (5), public pipeline b (13) and sealed public pipeline (12) of packing up shape size are the same and corresponding setting.
2. A bipolar plate as set forth in claim 1, wherein: welding lines a (6) are respectively arranged on the opposite surfaces of the anode side plate (1) and the cathode flow field plate (2), the welding lines a (6) are positioned on the periphery of a common pipeline a (5) and a common pipeline b (13), and the anode side plate (1) and the cathode flow field plate (2) are connected through the welding lines a (6); and welding lines b (7) are respectively arranged on the opposite surfaces of the cathode flow field plate (2) and the cathode current collecting plate (3), the welding lines b (7) are positioned at the two ends of the cathode flow field close to one side of the common pipeline b (13) on the cathode flow field plate (2) and the two ends of the cathode current collecting plate (3), and the cathode flow field plate (2) and the cathode current collecting plate (3) are connected through the welding lines b (7).
3. A bipolar plate as set forth in claim 2, wherein: the welding modes among the anode side polar plate (1), the cathode flow field plate (2) and the cathode collector plate (3) comprise laser welding, electron beam welding, resistance welding, diffusion welding, ultrasonic welding and high-frequency welding.
4. A bipolar plate as set forth in claim 1, wherein: the anode side polar plate (1) is a flat plate, the cathode collector plate (3) is a perforated plate, the aperture ratio is 25-60%, and the aperture is 1-3 mm.
5. A bipolar plate as in claim 4, wherein: the cathode flow field part of the cathode flow field plate (2) is corrugated or corrugated, the height of each corrugation or corrugation is 0.3-3mm, and the width between adjacent corrugations or corrugations is 0.5-3 mm.
6. A bipolar plate according to claim 1, wherein the anode side plate (1), cathode flow field plate (2) and cathode collector plate (3) are all metal.
7. The bipolar plate of claim 6, wherein the metal is a stainless steel plate, a titanium alloy plate, an aluminum alloy plate, a nickel alloy plate, or a copper plate.
8. A bipolar plate as set forth in claim 1, wherein: the thickness of the anode side polar plate (1) is 0.03-1 mm; the thickness of the cathode flow field plate (2) is 0.03-0.5 mm; the thickness of the cathode collector plate (3) is 0.01-0.2 mm.
9. A bipolar plate as set forth in claim 1, wherein: the thickness of the sealing gasket (10) is equal to the thickness of the cathode flow field plate (2) and the cathode current collecting plate (3) in a superposed mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921784016.0U CN210467987U (en) | 2019-10-23 | 2019-10-23 | Air-cooled fuel cell bipolar plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921784016.0U CN210467987U (en) | 2019-10-23 | 2019-10-23 | Air-cooled fuel cell bipolar plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210467987U true CN210467987U (en) | 2020-05-05 |
Family
ID=70435694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921784016.0U Active CN210467987U (en) | 2019-10-23 | 2019-10-23 | Air-cooled fuel cell bipolar plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210467987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112103530A (en) * | 2020-09-16 | 2020-12-18 | 广东国鸿氢能科技有限公司 | Air-cooled fuel cell polar plate structure |
-
2019
- 2019-10-23 CN CN201921784016.0U patent/CN210467987U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112103530A (en) * | 2020-09-16 | 2020-12-18 | 广东国鸿氢能科技有限公司 | Air-cooled fuel cell polar plate structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102306813B (en) | Fuel cell bipolar plate prepared through metal sheet stamping and forming, and application thereof | |
| CN207558943U (en) | A kind of fuel battery double plates | |
| CN101937997B (en) | Metallic bipolar plate of proton exchange membrane fuel cell and single cell and electric stack formed by same | |
| CN108172857B (en) | Fuel cell stack flow field plate supporting high-current-density discharge | |
| CN105702968A (en) | Metal stamping bipolar plate with simple structure | |
| CN210443621U (en) | Metal matrix bipolar plate | |
| CN110890569A (en) | Fuel cell assembly, fuel cell and preparation process thereof | |
| CN210576224U (en) | Ultra-light air-cooled fuel cell metal bipolar plate | |
| CN210576257U (en) | Air cooling fuel cell with elasticity and thermal-insulated end plate mechanism | |
| CN111668506B (en) | Novel metal bipolar plate of hydrogen fuel cell | |
| CN209675406U (en) | A kind of air-cooled fuel cell pile of metal double polar plates | |
| CN111952652A (en) | Air cooling fuel cell with elasticity and thermal-insulated end plate mechanism | |
| CN201266641Y (en) | Metal double polar plate of fuel cell | |
| CN210467987U (en) | Air-cooled fuel cell bipolar plate | |
| CN210467988U (en) | Air-cooled fuel cell metal bipolar plate | |
| CN112701312B (en) | Air-cooled fuel cell metal bipolar plate | |
| CN112701311A (en) | Air-cooled fuel cell bipolar plate and preparation method thereof | |
| CN111952621A (en) | Fuel cell stack and fuel cell vehicle | |
| CN110112432A (en) | The structure and its method for laser welding of membrane electrode are used to support in a kind of metal polar plate | |
| CN210296509U (en) | Air-cooled ultra-light fuel cell anode plate | |
| CN212085140U (en) | Novel metal bipolar plate of hydrogen fuel cell | |
| CN214152948U (en) | Metal spring structure for sealing metal bipolar plate | |
| CN205645995U (en) | Polar plate and fuel cell for proton exchange membrane fuel cell | |
| CN115207429A (en) | Single cell short stack integrally packaged by composite frame fuel cell | |
| CN112701310A (en) | Air-cooled ultra-light fuel cell anode plate and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |