CN109560305B - Metal bipolar plate and processing method - Google Patents
Metal bipolar plate and processing method Download PDFInfo
- Publication number
- CN109560305B CN109560305B CN201910005519.1A CN201910005519A CN109560305B CN 109560305 B CN109560305 B CN 109560305B CN 201910005519 A CN201910005519 A CN 201910005519A CN 109560305 B CN109560305 B CN 109560305B
- Authority
- CN
- China
- Prior art keywords
- plate
- runner
- cathode
- anode
- flow channel
- 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
- 229910052751 metal Inorganic materials 0.000 title claims description 53
- 239000002184 metal Substances 0.000 title claims description 53
- 238000003672 processing method Methods 0.000 title claims description 7
- 239000000498 cooling water Substances 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000003698 laser cutting Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000007733 ion plating Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000005336 cracking Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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
- H01M8/0258—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
-
- 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
- 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 present invention provides a metallic bipolar plate comprising: an anode negative film (1) and a cathode negative film (2); a sealing gasket (3) is arranged between the anode negative film (1) and the cathode negative film (2); a cooling water flow channel plate (4) is arranged on one surface of the cathode bottom plate (2) adjacent to the sealing gasket (3), and a cathode flow channel plate (5) is arranged on the other surface of the cathode bottom plate (2); an anode runner plate (14) is arranged on the surface of the anode bottom plate (1) opposite to the sealing gasket (3). Unlike available technology, the present invention has the advantages of no need of expensive stamping mold equipment, no material stress concentration, workpiece cracking, etc. and low production cost.
Description
Technical Field
The invention belongs to the technical field of fuel cells, and particularly relates to a metal bipolar plate and a processing method thereof.
Background
The Proton Exchange Membrane Fuel Cell (PEMFC) is a clean and environment-friendly electrochemical generating device suitable for automobiles, airplanes, portable power supplies and standby power supplies. The proton exchange membrane fuel cell is a core component of the hydrogen energy new energy automobile engine, the bipolar plate is another core component of the proton exchange membrane fuel cell except the exchange membrane, and accounts for more than 70% of the weight of the cell, and nearly accounts for half of the total cost of the cell, and plays roles of collecting conduction current, separating oxidant and reducing agent, supporting the cell and the like.
Because of the special working environment of the fuel cell, the bipolar plate is required to have high conductivity like noble metals such as gold and silver, strong corrosion resistance like graphite and hydrophobicity like lotus leaf surface, high mechanical strength, high gas barrier capability, low cost, easy processing and the like. The direct use of noble metals for the bipolar plates will result in extremely high cost price for fuel cells, while the direct use of graphite for bipolar plates is thicker, heavier, more fragile, less impact safe and unsuitable for use in the manufacture of battery stacks for automotive engines.
The metal bipolar plate has the advantages of low cost of raw materials, high strength, flexible processing mode, large power/volume ratio and the like. However, in the existing metal bipolar plate, the stamping forming process is mainly adopted to process the buffer groove and the connecting channel on the polar plate, namely, a hydraulic press and a die are adopted to stamp and stretch the metal plate, however, in the stamping process, the deformation of the plate is large, the stretching area is easy to be injured and cracked, and the problems of bipolar plate air leakage phenomenon, uneven assembly and the like are easy to cause.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide the metal bipolar plate and the processing method thereof, which have the advantages of modularized structure, low manufacturing cost and simple processing technology.
In order to solve the above problems, the present invention provides a metal bipolar plate comprising:
anode negative and cathode negative; a sealing gasket is arranged between the anode negative plate and the cathode negative plate;
a cooling water flow channel plate is arranged on one surface of the cathode negative plate adjacent to the sealing gasket, and a cathode flow channel plate is arranged on the other surface of the cathode negative plate;
an anode runner plate is arranged on the surface of the anode bottom plate opposite to the sealing gasket.
The aim and the technical problems of the invention can be further realized by adopting the following technical measures.
Preferably, the cooling water runner plate and the cathode runner plate are welded and connected to the cathode negative plate; and/or the anode runner plate is welded on the anode bottom plate.
Preferably, the anode backsheet is a metal plate member and/or the cathode backsheet is a metal plate member.
Preferably, the cross section of the cooling water flow channel plate along the length direction of the metal bipolar plate is a trapezoid or semi-arc cooling water ripple structure, and two sides of the cooling water ripple structure respectively form a cavity structure for cooling water to flow along the width direction of the metal bipolar plate.
Preferably, the cross section of the cathode runner along the width direction of the metal bipolar plate is a trapezoid or semi-arc-shaped cathode corrugated structure, the cathode runner is also provided with a cathode runner hole, and the cathode runner hole is communicated with two sides of the cathode corrugated structure to form a drainage branch for working medium to flow between the two sides of the cathode corrugated structure.
Preferably, the cathode corrugated structure is processed by adopting a rolling process, the cathode runner hole is processed by adopting a stamping process, and two sides of the cathode corrugated structure are communicated.
Preferably, the anode runner plate comprises a first anode runner plate and a second anode runner plate, and a first vertical runner group extending along the length direction of the metal bipolar plate is arranged on the first anode runner plate; a second vertical runner group extending along the length direction of the metal bipolar plate is arranged on the second anode runner plate, and transverse runner groups are respectively arranged at two ends of the second vertical runner group;
the first anode runner plate and the second anode runner plate are installed in a superposed mode, two ends of the first vertical runner group penetrate through the transverse runner group, the transverse runner group can collect reaction water of the anode runner plate, and hydrogen can be distributed to all the first vertical runner groups.
Preferably, the first vertical runner group is formed by laser cutting or stamping, and the first vertical runner group is a linear runner, a serpentine runner or a variable cross-section runner; and/or the second vertical runner group is formed by laser cutting or stamping, and the second vertical runner group is a linear runner, a serpentine runner or a variable cross-section runner; and/or the cross flow channel group is formed by laser cutting or stamping, and is a straight flow channel, a snake-shaped flow channel or a variable-section flow channel.
Preferably, after the anode bottom plate, the cathode bottom plate, the cooling water flow channel plate, the cathode flow channel plate and the anode flow channel plate are assembled, the metal bipolar plate is subjected to multi-arc ion plating process treatment, and a corrosion-resistant conductive coating is formed on the surface of the metal bipolar plate.
A processing method of a metal bipolar plate comprises the following steps: the anode bottom plate, the cathode bottom plate, the cooling water flow channel plate, the cathode flow channel plate and the anode flow channel plate are respectively and independently processed and molded;
the cooling water flow channel plate and the cathode flow channel plate are respectively assembled and fixed on the cathode negative plate; and/or, assembling and fixing the anode runner plate on the anode bottom plate.
The metal bipolar plate provided by the invention has at least the following beneficial effects:
unlike available technology, the present invention has the advantages of no need of expensive stamping mold equipment, no material stress concentration, workpiece cracking, etc. and low production cost.
Drawings
FIG. 1 is a schematic view of an assembly of a metallic bipolar plate according to an embodiment of the present invention;
FIG. 2 is a partial side view of a metallic bipolar plate with the gasket removed in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view showing a structure of a cooling water flow channel plate according to an embodiment of the present invention;
FIG. 4 is a schematic view of a cathode flow field plate according to an embodiment of the present invention;
FIG. 5 is an enlarged view of A in FIG. 4;
FIG. 6 is a schematic view of a first anode flow field plate according to an embodiment of the present invention;
FIG. 7 is a schematic view of a second anode flow field plate according to an embodiment of the present invention;
FIG. 8 is a schematic view of an anode flow field plate according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a welding tool according to an embodiment of the invention.
The reference numerals are expressed as:
1. an anode negative; 2. a cathode negative; 3. a sealing gasket; 4. a cooling water flow passage plate; 5. a cathode flow channel plate; 6. a cooling water ripple structure; 7. a cathode corrugated structure; 8. a cathode flow passage hole; 9. a first anode runner plate; 10. a second anode flow field plate; 11. a first sprue set; 12. a second sprue set; 13. a transverse flow channel group; 14. an anode runner plate; 15. a laser welding machine; 16. a fixing bolt; 17. a first clamp plate; 18. a second clamp plate; 19. a T-shaped notch; 20. rectangular notch.
Detailed Description
Referring to fig. 1 to 8 in combination, a metal bipolar plate comprises: an anode negative film 1 and a cathode negative film 2; a sealing gasket 3 is arranged between the anode negative film 1 and the cathode negative film 2; a cooling water flow channel plate 4 is arranged on one surface of the cathode bottom plate 2 adjacent to the sealing gasket 3, and a cathode flow channel plate 5 is arranged on the other surface of the cathode bottom plate 2; an anode runner plate is arranged on the surface of the anode negative plate 1 opposite to the sealing gasket 3.
The metal bipolar plate provided by the embodiment of the invention is different from the bipolar plate integrally formed by stamping in the prior art, the bottom plate and the runner plate are assembled in a split way, expensive stamping die equipment is not needed, hidden troubles such as internal stress concentration of materials and workpiece cracking in stamping are avoided, the production cost is low, the process flow is simple, and the metal bipolar plate has high practical value.
In the embodiment, a cooling water flow channel plate 4 and a cathode flow channel plate 5 are welded and connected on a cathode bottom plate 2; and/or the anode runner plate is welded on the anode bottom plate 1.
Anode backsheet 1 is a metal plate member and/or cathode backsheet 2 is a metal plate member. Specifically, a high-speed punch is used for punching a metal plate with the thickness of 0.05-0.2mm into an anode negative plate 1 and a cathode negative plate 2 according to a design drawing. The anode negative film 1 and the cathode negative film 2 of the present embodiment may also be cut and formed on a metal plate material by wire cutting, laser cutting, water jet cutting, or the like. The anode base sheet 1 and the cathode base sheet 2 may be made of a metal material such as stainless steel, titanium, aluminum, or copper.
In this embodiment, the cross section of the cooling water flow channel plate 4 along the length direction of the metal bipolar plate is a trapezoid or semi-arc cooling water ripple structure 6, and the trough on both sides of the cooling water ripple structure 6 forms a dual-cavity structure for simultaneously supplying two cooling water flows along the width direction of the metal bipolar plate. The cooling water flow channel plate 4 adopts a rolling process, a metal plate with the thickness of 0.05-0.2mm is rolled into a cooling water ripple structure 6 with the cross section of a trapezoid or a semi-arc shape, the trough width of the cooling water ripple structure 6 is 0.3-1mm, and the depth is 0.1-1mm. The dual-chamber structure of the present embodiment, through which two cooling water flows at the same time, has a larger throughput of cooling water than the cooling tank of the same depth and width.
In this embodiment, the cross section of the cathode runner plate 5 along the width direction of the metal bipolar plate is a trapezoid or semi-arc cathode corrugated structure 7, the cathode runner plate 5 is also provided with a cathode runner hole 8, and the cathode runner hole 8 is communicated with the wave troughs on both sides of the cathode corrugated structure 7 to form a drainage branch for the working medium to flow between the wave troughs on both sides of the cathode corrugated structure 7.
The cathode corrugated structure 7 is processed by adopting a rolling process, the cathode corrugated structure 7 is processed by adopting a metal plate with the thickness of 0.05-0.2mm through the rolling process, the width of the trough of the cathode corrugated structure 7 is 0.5-1.5mm, the depth is 0.1-1mm, and the included angle between the two side walls of the trough is 0-15 degrees; the cathode runner holes 8 are processed by adopting a stamping process, the wave troughs on two sides of the cathode corrugated structure 7 are communicated transversely or obliquely, and the cathode runner holes 8 are uniformly arranged on two side walls of the wave troughs of the cathode corrugated structure 7. The cathode runner holes 8 can be round holes, square holes or special-shaped holes with the aperture of 0.5-2 mm. The cathode runner holes 8 can be communicated with adjacent wave troughs to enable the wave troughs to be connected to form a branch, the cathode runner plate 5 integrally forms a three-dimensional structure, and some small water drops are converged into small water flows under the action of surface tension and air sweeping pressure, so that water discharge is facilitated. Meanwhile, some parts of the cathode runner plate 5 are blocked with attached water drops, so that air can not be completely blocked, and the condition that the downstream reaction part lacks reaction air can not be caused.
In this embodiment, the anode runner plate 14 includes a first anode runner plate 9 and a second anode runner plate 10, and a first vertical runner group 11 extending along the length direction of the metal bipolar plate is disposed on the first anode runner plate 9; the second anode runner plate 10 is provided with a second vertical runner group 12 extending along the length direction of the metal bipolar plate, and two ends of the second vertical runner group 12 are respectively provided with a transverse runner group 13.
The first vertical runner group 11 is formed by laser cutting or stamping, and the first vertical runner group 11 is a linear runner, a serpentine runner or a variable cross-section runner with the width of 0.3-1 mm; and/or the second vertical runner group 12 is formed by laser cutting or stamping, and the second vertical runner group 12 is a linear runner, a serpentine runner or a variable-section runner; and/or the cross flow channel group 13 is formed by laser cutting or stamping, and the cross flow channel group 13 is a linear flow channel, a serpentine flow channel or a variable cross-section flow channel.
The first anode runner plate 9 and the second anode runner plate 10 are welded or bonded and overlapped, two ends of the first vertical runner group 11 penetrate through the transverse runner group 13, and the transverse runner group 13 can collect reaction water of the anode runner plate 14 and can distribute hydrogen to all the first vertical runner groups 11. The first anode runner plate 9 and the second anode runner plate 10 can be made of other materials such as carbon paper and carbon cloth, and the pores of the materials can better distribute the reaction gas.
In order to ensure that working medium flows into and out of the anode runner plate 14 better, the medium inlet and outlet of the first anode runner plate 9 are respectively provided with a T-shaped groove 19, the medium inlet of the second anode runner plate 10 is respectively provided with a rectangular groove 20, and when the first anode runner plate 9 and the second anode runner plate 10 are overlapped and installed, the T-shaped groove 19 and the rectangular groove 20 can form a laminated channel with better water permeability.
The invention also provides a processing method of the metal bipolar plate, which comprises the following steps: the anode bottom plate 1, the cathode bottom plate 2, the cooling water flow channel plate 4, the cathode flow channel plate 5 and the anode flow channel plate 14 are respectively and independently processed and molded; the cooling water runner plate 4 and the cathode runner plate 5 are respectively assembled and welded and fixed on the cathode bottom plate 2; and/or the anode flow field plate 14 is assembled and fixed to the anode base sheet 1.
In this embodiment, the anode base sheet 1, the cathode base sheet 2, the cooling water flow field plate 4, the cathode flow field plate 5, and the anode flow field plate 14 are welded in this order by a welding tool as shown in fig. 9. The welding fixture comprises a first fixture plate 17 and a second fixture plate 18, and after the first fixture plate 17 and the second fixture plate 18 fix the runner plate and the bottom plate through the fixing bolts 16, the welding is completed through the laser welding machine 15. When the anode runner plate 14 is assembled with the anode bottom plate 1 in a welding way, the second anode runner plate 10 needs to be ensured to be in direct contact with the anode bottom plate 1.
In this embodiment, after the metal bipolar plate is assembled, the metal bipolar plate is subjected to multi-arc ion plating process treatment, and a corrosion-resistant conductive coating is formed on the surface of the metal bipolar plate.
The embodiment provides a split design of the metal bipolar plate by adopting a negative plate and a runner plate, and has the advantages of welding and matching, simple processing technology, low manufacturing cost, no cracking of workpieces and considerable use value.
It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (10)
1. A metallic bipolar plate, comprising:
an anode negative film (1) and a cathode negative film (2); a sealing gasket (3) is arranged between the anode negative film (1) and the cathode negative film (2);
a cooling water flow channel plate (4) is arranged on one surface of the cathode bottom plate (2) adjacent to the sealing gasket (3), a double-cavity flow structure is formed between the cooling water flow channel plate (4) and the anode bottom plate (1) and the cathode bottom plate (2), and a cathode flow channel plate (5) is arranged on the other surface of the cathode bottom plate (2);
an anode runner plate (14) is arranged on the surface of the anode bottom plate (1) opposite to the sealing gasket (3).
2. The metal bipolar plate according to claim 1, wherein the cooling water runner plate (4) and the cathode runner plate (5) are welded on the cathode bottom plate (2); and/or the anode runner plate (14) is welded on the anode bottom plate (1).
3. Metallic bipolar plate according to claim 1, characterized in that the anode backsheet (1) is a metallic plate element and/or the cathode backsheet (2) is a metallic plate element.
4. The metal bipolar plate according to claim 1, wherein the cross section of the cooling water runner plate (4) along the length direction of the metal bipolar plate is a trapezoid or semi-arc cooling water ripple structure (6), and two sides of the cooling water ripple structure (6) respectively form a cavity structure for cooling water to flow along the width direction of the metal bipolar plate.
5. The metal bipolar plate according to claim 1, wherein the cross section of the cathode runner plate (5) along the width direction of the metal bipolar plate is a trapezoid or semi-arc cathode corrugated structure (7), a cathode runner hole (8) is further formed in the cathode runner, and the cathode runner hole (8) is communicated with two sides of the cathode corrugated structure (7) to form a drainage branch for flowing a working medium between the two sides of the cathode corrugated structure (7).
6. The metal bipolar plate according to claim 5, wherein the cathode corrugated structure (7) is formed by a rolling process, and the cathode runner holes (8) are formed by a stamping process, and are communicated with two sides of the cathode corrugated structure (7).
7. The metal bipolar plate according to claim 1, wherein the anode runner plate (14) comprises a first anode runner plate (9) and a second anode runner plate (10), and a first vertical runner group (11) extending along the length direction of the metal bipolar plate is arranged on the first anode runner plate (9); a second vertical runner group (12) extending along the length direction of the metal bipolar plate is arranged on the second anode runner plate (10), and two ends of the second vertical runner group (12) are respectively provided with a transverse runner group (13);
the first anode runner plate (9) and the second anode runner plate (10) are installed in a superposed mode, two ends of the first vertical runner group (11) penetrate through the cross flow runner group (13), the cross flow runner group (13) can collect reaction water of the anode runner plate, and hydrogen can be distributed to all the first vertical runner groups (11).
8. The metallic bipolar plate according to claim 7, wherein the first vertical flow channel group (11) is formed by laser cutting or stamping, and the first vertical flow channel group (11) is a linear flow channel, a serpentine flow channel or a variable cross-section flow channel; and/or the second vertical runner group (12) is formed by laser cutting or stamping, and the second vertical runner group (12) is a linear runner, a serpentine runner or a variable cross-section runner; and/or the cross flow channel group (13) is formed by laser cutting or stamping, and the cross flow channel group (13) is a straight flow channel, a serpentine flow channel or a variable cross-section flow channel.
9. The metal bipolar plate according to any one of claims 1-8, wherein after the anode bottom plate (1), the cathode bottom plate (2), the cooling water flow channel plate (4), the cathode flow channel plate (5) and the anode flow channel plate are assembled, the metal bipolar plate is subjected to multi-arc ion plating process treatment, and a corrosion-resistant conductive coating is formed on the surface of the metal bipolar plate.
10. A metal bipolar plate processing method for processing the metal bipolar plate according to any one of claims 1 to 9, comprising:
the anode bottom plate (1), the cathode bottom plate (2), the cooling water flow channel plate (4), the cathode flow channel plate (5) and the anode flow channel plate (14) are respectively and independently processed and molded;
the cooling water flow channel plate (4) and the cathode flow channel plate (5) are respectively assembled and fixed on the cathode bottom plate (2); and/or, the anode runner plate (14) is assembled and fixed on the anode bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005519.1A CN109560305B (en) | 2019-01-03 | 2019-01-03 | Metal bipolar plate and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005519.1A CN109560305B (en) | 2019-01-03 | 2019-01-03 | Metal bipolar plate and processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109560305A CN109560305A (en) | 2019-04-02 |
| CN109560305B true CN109560305B (en) | 2024-02-09 |
Family
ID=65872340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910005519.1A Active CN109560305B (en) | 2019-01-03 | 2019-01-03 | Metal bipolar plate and processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109560305B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111230315B (en) * | 2020-01-18 | 2021-11-19 | 温州大学 | Processing device and processing method for special-shaped section complex flow field bipolar plate |
| CN114420964B (en) * | 2022-03-29 | 2022-07-29 | 武汉众宇动力系统科技有限公司 | Metal bipolar plate for fuel cell and injection molding method of sealing member thereof |
| CN118073595A (en) * | 2024-04-19 | 2024-05-24 | 山东鼎誉新能源材料有限公司 | Composite bipolar plate for fuel cell stack |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003088378A2 (en) * | 2002-03-26 | 2003-10-23 | The Regents Of The University Of California | Enhanced flow field and bipolar plate for a fuel cell |
| CN200969372Y (en) * | 2006-11-17 | 2007-10-31 | 英属盖曼群岛商胜光科技股份有限公司 | Cathode flow passage plate for fuel cell |
| JP2010097810A (en) * | 2008-10-16 | 2010-04-30 | Antig Technology Corp | Fuel cell stack |
| TWI470867B (en) * | 2013-08-05 | 2015-01-21 | Chunghwa Telecom Co Ltd | Portable Power PCB Bipolar Traverse and Its Manufacturing Method |
| CN104733764A (en) * | 2013-12-24 | 2015-06-24 | 财团法人工业技术研究院 | Stacked fuel cell |
| CN104795574A (en) * | 2015-04-14 | 2015-07-22 | 中国东方电气集团有限公司 | Metal bipolar plates of fuel cell and fuel cell |
| CN207233866U (en) * | 2017-09-28 | 2018-04-13 | 陈莉 | A kind of dual polar plates of proton exchange membrane fuel cell structure and fuel cell pile |
| JP2018200858A (en) * | 2017-05-30 | 2018-12-20 | 株式会社フジクラ | Bipolar plate, fuel cell, and fuel cell system |
| CN209389138U (en) * | 2019-01-03 | 2019-09-13 | 浙江锋源氢能科技有限公司 | Metal double polar plates |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004243745A (en) * | 2003-02-17 | 2004-09-02 | Toyo Tire & Rubber Co Ltd | Nozzle structure of cold runner apparatus in injection molding die |
| TWI344716B (en) * | 2007-06-22 | 2011-07-01 | Young Green Energy Co | Fuel cell module |
| KR101693993B1 (en) * | 2015-05-20 | 2017-01-17 | 현대자동차주식회사 | Bipolar plate for fuel cell |
-
2019
- 2019-01-03 CN CN201910005519.1A patent/CN109560305B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003088378A2 (en) * | 2002-03-26 | 2003-10-23 | The Regents Of The University Of California | Enhanced flow field and bipolar plate for a fuel cell |
| CN200969372Y (en) * | 2006-11-17 | 2007-10-31 | 英属盖曼群岛商胜光科技股份有限公司 | Cathode flow passage plate for fuel cell |
| JP2010097810A (en) * | 2008-10-16 | 2010-04-30 | Antig Technology Corp | Fuel cell stack |
| TWI470867B (en) * | 2013-08-05 | 2015-01-21 | Chunghwa Telecom Co Ltd | Portable Power PCB Bipolar Traverse and Its Manufacturing Method |
| CN104733764A (en) * | 2013-12-24 | 2015-06-24 | 财团法人工业技术研究院 | Stacked fuel cell |
| CN104795574A (en) * | 2015-04-14 | 2015-07-22 | 中国东方电气集团有限公司 | Metal bipolar plates of fuel cell and fuel cell |
| JP2018200858A (en) * | 2017-05-30 | 2018-12-20 | 株式会社フジクラ | Bipolar plate, fuel cell, and fuel cell system |
| CN207233866U (en) * | 2017-09-28 | 2018-04-13 | 陈莉 | A kind of dual polar plates of proton exchange membrane fuel cell structure and fuel cell pile |
| CN209389138U (en) * | 2019-01-03 | 2019-09-13 | 浙江锋源氢能科技有限公司 | Metal double polar plates |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109560305A (en) | 2019-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109560305B (en) | Metal bipolar plate and processing method | |
| US8603704B2 (en) | Interlockable bead seal | |
| CN102969513B (en) | Large-area metal bipolar plate for automobile fuel cell | |
| CN108172857B (en) | Fuel cell stack flow field plate supporting high-current-density discharge | |
| US10516167B2 (en) | Formed plate assembly for PEM fuel cell | |
| CN104157895B (en) | The light-duty pile of polymer dielectric film fuel cell and manufacture method thereof | |
| CN114574887B (en) | Electrolytic cell polar plate and electrolytic cell | |
| CN109802153B (en) | Process for manufacturing metal bipolar plate of fuel cell and forming device | |
| US8092951B2 (en) | Fuel cell, fuel cell stack and method of manufacturing the same | |
| CN212303715U (en) | Bipolar plate of fuel cell and fuel cell | |
| JP2006294404A (en) | Fuel cell separator | |
| US10103390B2 (en) | Method for producing kiss cut fluid flow field plates | |
| CN111276711B (en) | Air flow channel assembly, fuel cell air cooling stack bipolar plate and preparation method | |
| US20140093806A1 (en) | Electroformed bipolar plates for fuel cells | |
| JP6103376B2 (en) | Fuel cell stack and manufacturing method thereof | |
| CN210576224U (en) | Ultra-light air-cooled fuel cell metal bipolar plate | |
| CN210467988U (en) | Air-cooled fuel cell metal bipolar plate | |
| CN209389138U (en) | Metal double polar plates | |
| JP2000323149A (en) | Separator for fuel cell and manufacturing device thereof | |
| CN112701312B (en) | Air-cooled fuel cell metal bipolar plate | |
| CN102237529B (en) | The forming board assembly of PEM fuel cell | |
| CN210467987U (en) | Air-cooled fuel cell bipolar plate | |
| US20150311540A1 (en) | Method for producing fluid flow field plates | |
| CN115516674A (en) | Proton exchange membrane fuel cell, preparation method thereof and proton exchange membrane fuel cell stack | |
| CN216389443U (en) | Open metal bipolar plate of fuel cell negative pole and unmanned aerial vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |