CN220202055U - Titanium metal bipolar plate for stamping type proton exchange membrane electrolysis water - Google Patents
Titanium metal bipolar plate for stamping type proton exchange membrane electrolysis water Download PDFInfo
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- CN220202055U CN220202055U CN202321893782.7U CN202321893782U CN220202055U CN 220202055 U CN220202055 U CN 220202055U CN 202321893782 U CN202321893782 U CN 202321893782U CN 220202055 U CN220202055 U CN 220202055U
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- flow field
- plate
- field plate
- anode
- cathode
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000010936 titanium Substances 0.000 title claims abstract description 31
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 30
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000012528 membrane Substances 0.000 title claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 20
- 239000002184 metal Substances 0.000 title claims abstract description 20
- 238000005868 electrolysis reaction Methods 0.000 title claims description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 238000005192 partition Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 26
- 239000001257 hydrogen Substances 0.000 claims description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- 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 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000003486 chemical etching Methods 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- -1 fluoride ions Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 150000003608 titanium Chemical class 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model relates to a titanium metal bipolar plate for stamping proton exchange membrane electrolyzed water, which comprises an anode flow field plate, a partition plate and a cathode flow field plate, wherein the anode flow field plate and the cathode flow field plate are oppositely arranged at two sides of the partition plate; the reaction flow field of the cathode flow field plate comprises a second outlet and a cathode flow channel, and one end of the cathode flow channel is communicated with the second outlet; the bipolar plate structure is formed by superposing the anode flow field plate, the separator plate and the cathode flow field plate, and the titanium metal bipolar plate manufactured by adopting a stamping method can save a large amount of titanium materials, effectively reduce the cost and avoid the problem of environmental pollution caused by the use of chemical reagents.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a stamping titanium metal bipolar plate for water electrolysis of a proton exchange membrane.
Background
The new energy is taken as a renewable energy source and has important roles in sustainable development and energy revolution. However, compared with the traditional thermal power, hydroelectric power and nuclear power, the new energy power generation has dispersibility, intermittence and instability, and is not suitable for direct grid connection in consideration of factors such as power grid stability and safety. The electricity-hydrogen conversion is used as an important energy storage mode, can store unstable renewable energy sources into hydrogen, can generate electricity through a fuel cell or a hydrogen-doped internal combustion engine when needed, can be used in the fields of chemical production and transportation, and is a renewable energy source digestion mode with great development potential. At present, the Proton Exchange Membrane (PEM) electrolyzed water hydrogen production is a clean, efficient and renewable hydrogen energy production technology, has higher electrolysis efficiency and hydrogen purity, can greatly reduce the hydrogen production cost, and more importantly, has wide-range quick dynamic response capability, and can perfectly adapt to the intermittence and volatility of new energy power generation.
The structure of a conventional PEM electrolyzed water stack is mainly composed of a proton exchange membrane, a catalytic layer, a bipolar plate and a sealing ring, although the membrane electrode is the core of the electrolyzer, the bipolar plate is one of the important components of the bipolar plate and occupies a larger cost of the electrolyzer, the conventional bipolar plate is usually made of high-purity titanium metal (Ti) materials, and the cost of the titanium metal is still higher than that of the bipolar plate materials commonly used in fuel cells, such as graphite and stainless steel. Aiming at the bipolar plate made of titanium metal, two common processing technologies exist at present: firstly, a cutting machining method is to cut and punch a titanium plate by using a mechanical cutting tool; and secondly, a chemical etching method is adopted, and etching treatment is carried out on the flow channel by adopting etching liquid containing fluoride ions. However, both the above methods are material-reducing manufacturing, and there is a great deal of titanium waste, and especially chemical etching methods also cause serious environmental pollution, so that the method is very unfavorable for commercialization of PEM electrolytic cells in the future.
Therefore, based on the shortcomings of the prior art, how to design a bipolar plate with low cost and no pollution, which is a problem to be solved in the technical field.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a stamping titanium metal bipolar plate for water electrolysis of a proton exchange membrane, which adopts the following technical scheme:
the titanium metal bipolar plate for the stamping type proton exchange membrane electrolyzed water comprises an anode flow field plate, a partition plate and a cathode flow field plate, wherein the anode flow field plate and the cathode flow field plate are oppositely arranged on two sides of the partition plate, the middle areas of the anode flow field plate and the cathode flow field plate are respectively provided with a stamping forming reaction flow field, the reaction flow field of the anode flow field plate comprises a water inlet, a first outlet for flowing out oxygen and water and an anode flow channel, one end of the anode flow channel is communicated with the water inlet, and the other end of the anode flow channel is communicated with the first outlet; the reaction flow field of the cathode flow field plate comprises a second outlet for the outflow of hydrogen and water and a cathode flow channel, and one end of the cathode flow channel is communicated with the second outlet.
Preferably, it is: flow channels of reaction flow fields in the anode flow field plate and the cathode flow field plate are of a serpentine double-flow-channel structure.
Preferably, it is: the periphery of the reaction flow field of the anode flow field plate and the cathode flow field plate is provided with a frame sealing groove, and a sealing structure made of silicone rubber is arranged in the frame sealing groove.
Preferably, it is: the opening of the anode flow channel in the anode flow field plate is arranged back to the separator; the openings of the cathode flow channels in the cathode flow field plate are arranged back to the separator.
Preferably, it is: the anode flow field plate and the cathode flow field plate are both titanium plates with the thickness of 0.2 mm.
Preferably, it is: the anode flow channel and the cathode flow channel comprise ridges and grooves which are arranged in a crossing mode, the grooves are located in the middle of the flow channel, and the ridges are respectively arranged at the two sides of the grooves.
Preferably, it is: the depth of the corresponding frame sealing groove in the anode flow field plate is the same as the depth of the groove of the anode flow channel; the depth of the corresponding frame sealing groove in the cathode flow field plate is the same as the depth of the groove of the cathode flow channel.
Preferably, it is: a first cooling flow channel is arranged at the gap position between the anode flow field plate and the separator; and a second cooling flow passage is arranged at the gap position between the cathode flow field plate and the separator plate.
Advantageous effects
The technical scheme of the utility model has the following beneficial effects:
the utility model adopts three metal single plates formed by stamping, namely an anode flow field plate, a baffle plate and a cathode flow field plate, which are overlapped together to form a bipolar plate structure, and sealing materials are respectively put into a frame sealing groove to realize the sealing of the bipolar plate structure, the single plates are tightly attached together by external force compaction, and the titanium metal bipolar plate manufactured by the stamping method saves a large amount of titanium materials, effectively reduces the cost and avoids the problem of environmental pollution caused by the use of chemical reagents.
Drawings
Fig. 1 is a schematic diagram of an assembly structure of a titanium bipolar plate for water electrolysis of a stamped proton exchange membrane in this embodiment.
Fig. 2 is a schematic diagram of the front structure of a titanium bipolar plate for water electrolysis of a stamped proton exchange membrane in this embodiment.
FIG. 3 is a schematic cross-sectional view of the position A-A of FIG. 2.
Fig. 4 is a schematic view showing the overall structure of the anode flow field plate in this embodiment.
Fig. 5 is a schematic view showing the overall structure of the cathode flow field plate in this embodiment.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model. It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Referring to fig. 1-3, a titanium bipolar plate for water electrolysis of a stamped proton exchange membrane in this embodiment includes an anode flow field plate 2, a separator 1 and a cathode flow field plate 3, wherein the anode flow field plate 2 and the cathode flow field plate 3 are disposed opposite to each other on two sides of the separator 1, and in this embodiment, stamped reaction flow fields are disposed in middle regions of the anode flow field plate 2 and the cathode flow field plate 3.
The anode flow field plate 2 is made of a titanium plate with the thickness of 0.2mm, as shown in fig. 4, a reaction flow field of the anode flow field plate 2 comprises a water inlet 4, a first outlet 5 and an anode flow channel, wherein the first outlet 5 is used for flowing out oxygen and water, one end of the anode flow channel is communicated with the water inlet 4, and the other end of the anode flow channel is communicated with the first outlet 5; the flow channel of the reaction flow field of the anode flow field plate 2 adopts a serpentine double-flow channel structure, and is shown in fig. 3, the anode flow channel comprises anode ridges 202 and anode grooves 201 which are arranged in a crossed manner, the anode grooves 201 are positioned in the middle of the anode flow channel, the anode ridges 202 are respectively arranged at two sides of the anode grooves 201, the anode grooves 201 of the anode flow channel can serve as gas and liquid channels to supply water to flow and provide flow channels for oxygen, and the anode ridges 202 can separate adjacent anode grooves 201 and support the flow channel structure. The openings of the anode flow channels in the anode flow field plate 2 are arranged back to the separator plate 1, and a first cooling flow channel 203 is arranged at a gap position between the anode flow field plate 2 and the separator plate 1, and cooling gas is introduced into the first cooling flow channel 203 to cool the anode flow field plate 2.
In order to improve the sealing effect of the anode flow field plate 2, a frame sealing groove 204 is arranged at the periphery of a reaction flow field of the anode flow field plate 2, and a sealing structure made of silicon rubber is arranged in the frame sealing groove 204; the depth of the corresponding frame sealing groove 204 in the anode flow field plate 2 is the same as the depth of the anode groove 201 of the anode flow channel. When the bipolar plate of the embodiment is applied to an electrolyzed water structure, the reaction flow field of the anode flow field plate 2 can be integrally sealed through the sealing structure of the frame sealing groove 204, so as to avoid the interference of the external environment with the operation of the anode flow field plate 2.
Further, the cathode flow field plate 3 of the present embodiment adopts a titanium plate with a thickness of 0.2mm, as shown in fig. 5, the reaction flow field of the cathode flow field plate 3 includes a second outlet 6 and a cathode flow channel, the second outlet 6 is used for flowing out hydrogen and water, and one end of the cathode flow channel is communicated with the second outlet 6; the flow channel of the reaction flow field in the cathode flow field plate 3 also adopts a serpentine double-flow-channel structure; referring to fig. 3, the cathode flow channels each include a cathode ridge 302 and a cathode groove 301 that are arranged in a cross manner, the cathode grooves 301 are located in the middle of the cathode flow channels, the cathode ridges 302 are respectively disposed at two sides of the cathode grooves 301, the cathode grooves 301 of the cathode flow channels can be used as gas and liquid channels to supply water to flow and provide a flow channel for hydrogen, and the cathode ridges 302 can separate adjacent cathode grooves 301 and support the flow channel structure. The hydrogen ions are subjected to electron formation through the cathode flow field plate 3 to form hydrogen, and are collected in a cathode flow channel of the cathode flow field plate 3, and flow along the cathode flow channel along with the residual water to the second outlet 6 to be discharged. In this embodiment, the openings of the cathode flow channels in the cathode flow field plate 3 are disposed opposite to the separator 1, and a second cooling flow channel 303 is disposed at a gap between the cathode flow field plate 3 and the separator 1, and cooling gas is introduced into the second cooling flow channel 303 to cool the cathode flow field plate 3.
Similarly, a frame sealing groove 304 is also arranged at the periphery of the reaction flow field of the cathode flow field plate 3, and a sealing structure made of silicon rubber is arranged in the frame sealing groove 304; the depth of the corresponding frame sealing groove 304 in the cathode flow field plate 3 is the same as the depth of the cathode groove 301 of the cathode flow channel, and the reaction flow field of the cathode flow field plate 3 can be integrally sealed through the sealing structure of the frame sealing groove 304, so that the operation of the cathode flow field plate 3 is prevented from being interfered by the external environment.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (8)
1. The titanium metal bipolar plate for the water electrolysis of the stamping type proton exchange membrane is characterized by comprising an anode flow field plate, a partition plate and a cathode flow field plate, wherein the anode flow field plate and the cathode flow field plate are oppositely arranged on two sides of the partition plate, the middle areas of the anode flow field plate and the cathode flow field plate are respectively provided with a stamping forming reaction flow field, the reaction flow field of the anode flow field plate comprises a water inlet, a first outlet for the outflow of oxygen and water and an anode flow channel, one end of the anode flow channel is communicated with the water inlet, and the other end of the anode flow channel is communicated with the first outlet; the reaction flow field of the cathode flow field plate comprises a second outlet for the outflow of hydrogen and water and a cathode flow channel, and one end of the cathode flow channel is communicated with the second outlet.
2. The stamped titanium metal bipolar plate for water electrolysis of a proton exchange membrane according to claim 1, wherein the bipolar plate is characterized in that: flow channels of reaction flow fields in the anode flow field plate and the cathode flow field plate are of a serpentine double-flow-channel structure.
3. The stamped titanium metal bipolar plate for water electrolysis of a proton exchange membrane according to claim 1, wherein the bipolar plate is characterized in that: the periphery of the reaction flow field of the anode flow field plate and the cathode flow field plate is provided with a frame sealing groove, and a sealing structure made of silicone rubber is arranged in the frame sealing groove.
4. The stamped titanium metal bipolar plate for water electrolysis of a proton exchange membrane according to claim 1, wherein the bipolar plate is characterized in that: the opening of the anode flow channel in the anode flow field plate is arranged back to the separator; the openings of the cathode flow channels in the cathode flow field plate are arranged back to the separator.
5. The stamped titanium metal bipolar plate for water electrolysis of a proton exchange membrane according to claim 1, wherein the bipolar plate is characterized in that: the anode flow field plate and the cathode flow field plate are both titanium plates with the thickness of 0.2 mm.
6. A stamped titanium metal bipolar plate for water electrolysis of a proton exchange membrane according to claim 3, wherein: the anode flow channel and the cathode flow channel comprise ridges and grooves which are arranged in a crossing mode, the grooves are located in the middle of the flow channel, and the ridges are respectively arranged at the two sides of the grooves.
7. The stamped titanium metal bipolar plate for water electrolysis of a proton exchange membrane according to claim 6, wherein the bipolar plate is characterized in that: the depth of the corresponding frame sealing groove in the anode flow field plate is the same as the depth of the groove of the anode flow channel; the depth of the corresponding frame sealing groove in the cathode flow field plate is the same as the depth of the groove of the cathode flow channel.
8. The stamped titanium metal bipolar plate for water electrolysis of a proton exchange membrane according to claim 1, wherein the bipolar plate is characterized in that: a first cooling flow channel is arranged at the gap position between the anode flow field plate and the separator; and a second cooling flow passage is arranged at the gap position between the cathode flow field plate and the separator plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321893782.7U CN220202055U (en) | 2023-07-19 | 2023-07-19 | Titanium metal bipolar plate for stamping type proton exchange membrane electrolysis water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321893782.7U CN220202055U (en) | 2023-07-19 | 2023-07-19 | Titanium metal bipolar plate for stamping type proton exchange membrane electrolysis water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220202055U true CN220202055U (en) | 2023-12-19 |
Family
ID=89147002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321893782.7U Active CN220202055U (en) | 2023-07-19 | 2023-07-19 | Titanium metal bipolar plate for stamping type proton exchange membrane electrolysis water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220202055U (en) |
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2023
- 2023-07-19 CN CN202321893782.7U patent/CN220202055U/en active Active
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