CN221426727U - Single cell test fixture - Google Patents
Single cell test fixture Download PDFInfo
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- CN221426727U CN221426727U CN202323232952.XU CN202323232952U CN221426727U CN 221426727 U CN221426727 U CN 221426727U CN 202323232952 U CN202323232952 U CN 202323232952U CN 221426727 U CN221426727 U CN 221426727U
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- anode
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- current collecting
- bipolar plate
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- 238000012360 testing method Methods 0.000 title claims abstract description 58
- 230000000712 assembly Effects 0.000 claims abstract description 15
- 238000000429 assembly Methods 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 abstract description 26
- 238000007789 sealing Methods 0.000 description 28
- 239000007789 gas Substances 0.000 description 6
- 238000011056 performance test Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000000157 electrochemical-induced impedance spectroscopy Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
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- Fuel Cell (AREA)
Abstract
The single cell testing fixture provided by the utility model comprises an end plate assembly, a current collecting plate assembly and an adjustable bipolar plate assembly, wherein the end plate assembly comprises an anode end plate and a cathode end plate, the current collecting plate assembly is arranged between the end plate assemblies, the current collecting plate assembly comprises an anode current collecting plate and a cathode current collecting plate, the anode current collecting plate is arranged on the anode end plate, the cathode current collecting plate is arranged on the cathode end plate, the adjustable bipolar plate assembly is arranged between the current collecting plate assemblies, and a membrane electrode is arranged between the adjustable bipolar plate assemblies, so that an operator can select bipolar plates in different forms for testing through testing, and the performance of the membrane electrode under different flow fields is tested. The single cell testing clamp provided by the utility model is convenient for an operator to perform testing operation, and can meet the requirement that the operator performs membrane electrode performance testing on the membrane electrode in different flow fields.
Description
Technical Field
The utility model belongs to the technical field of fuel cells, and particularly relates to a single cell testing fixture.
Background
The proton exchange membrane fuel cell can directly convert hydrogen into electric energy, has the advantages of zero pollution, high energy conversion efficiency and low working temperature, and is one of the most promising new energy technologies in the future. The single cell testing fixture can complete polarization curve test, electrochemical active area test, hydrogen permeation current density test, electrochemical Impedance Spectroscopy (EIS) test and the like, and is an important means for evaluating the performance of the membrane electrode. The single cell test fixture in the prior art has more parts, complex installation process and higher requirements on the skills of operators, and the performance of the membrane electrode under the condition of testing different flow fields is often required to be matched with the bipolar plates of different flow fields, so that the production cost is increased by manufacturing different single cell fixtures.
To solve the above-mentioned problems, the present invention relates to a fuel cell fixture and a testing device for clamping a membrane electrode package, wherein the fuel cell fixture comprises a first end plate, a first insulating plate, a first current collecting plate, an anode plate, a cathode plate, a second current collecting plate, a second insulating plate, and a second end plate, which are sequentially arranged along a thickness direction of the membrane electrode package, and the membrane electrode package can be fixed between the anode plate and the cathode plate, wherein: the first end plate is provided with an anode gas channel inlet, an anode gas channel outlet, a cathode gas channel inlet and a cathode gas channel outlet which penetrate through the thickness of the first end plate, and the anode gas channel inlet is adjacent to the cathode gas channel outlet; the application can reduce the performance test error of the membrane electrode, but can not meet the performance test of the membrane electrode under different flow fields.
Disclosure of utility model
The utility model is made to solve the above problems, and aims to provide a single cell testing fixture capable of testing the performance of a membrane electrode in different flow fields, which is convenient for an operator to perform testing operation, and in order to achieve the above purposes, the utility model adopts the following technical scheme:
The utility model provides a single cell test fixture, which has the following characteristics that: an end plate assembly comprising an anode end plate and a cathode end plate; the current collecting plate assembly is arranged between the end plate assemblies and comprises an anode current collecting plate and a cathode current collecting plate, the anode current collecting plate is arranged on the anode end plate, and the cathode current collecting plate is arranged on the cathode end plate; an adjustable bipolar plate assembly is disposed between the collector plate assemblies.
The single cell test fixture provided by the utility model can also have the following characteristics: the adjustable bipolar plate assembly includes an anode bipolar plate and a cathode bipolar plate.
The single cell test fixture provided by the utility model can also have the following characteristics: an anode straight flow channel is arranged on one side of the anode bipolar plate, and an anode serpentine flow channel is arranged on the other side of the anode bipolar plate; a cathode straight flow passage is arranged on one side of the cathode bipolar plate, and a cathode serpentine flow passage is arranged on the other side of the cathode bipolar plate.
The single cell test fixture provided by the utility model can also have the following characteristics: the anode bipolar plate is a metal anode bipolar plate or a graphite anode bipolar plate, and the cathode bipolar plate is a metal cathode bipolar plate or a graphite cathode bipolar plate.
The single cell test fixture provided by the utility model can also have the characteristics that: and the sealing gasket unit comprises an anode sealing gasket and a cathode sealing gasket, the anode sealing gasket is arranged between the anode current collecting plate and the anode bipolar plate, and the cathode sealing gasket is arranged between the cathode current collecting plate and the cathode bipolar plate.
The single cell test fixture provided by the utility model can also have the following characteristics: the anode bipolar plate is provided with a first positioning hole, and the cathode bipolar plate is provided with a second positioning hole matched with the first positioning hole.
The single cell test fixture provided by the utility model can also have the following characteristics: the end plate assembly, the collector plate assembly and the adjustable bipolar plate assembly are secured together by straps.
The utility model has the technical effects that: the single cell testing fixture provided by the utility model comprises an end plate assembly, a current collecting plate assembly and an adjustable bipolar plate assembly, wherein the end plate assembly comprises an anode end plate and a cathode end plate, the current collecting plate assembly is arranged between the end plate assemblies, the current collecting plate assembly comprises an anode current collecting plate and a cathode current collecting plate, the anode current collecting plate is arranged on the anode end plate, the cathode current collecting plate is arranged on the cathode end plate, the adjustable bipolar plate assembly is arranged between the current collecting plate assemblies, an anode sealing gasket is arranged between the anode current collecting plate and the anode bipolar plate, and a cathode sealing gasket is arranged between the cathode current collecting plate and the cathode bipolar plate. The membrane electrodes are arranged between the adjustable bipolar plate assemblies, and operators can select bipolar plates of different forms for testing through testing, so that the performance of the membrane electrodes under different flow fields can be tested.
Therefore, the single cell testing clamp provided by the utility model is convenient for an operator to perform testing operation, and can meet the requirement that the operator performs membrane electrode performance testing on the membrane electrode under different flow fields.
Drawings
The present specification includes the following drawings, the contents of which are respectively:
fig. 1 is a schematic structural view of a cell test fixture in an embodiment of the present utility model;
FIG. 2 is a schematic view of a straight-line anode flow channel on one side of an anode bipolar plate according to an embodiment of the utility model;
FIG. 3 is a schematic view of the structure of an anode serpentine flow channel on the other side of an anode bipolar plate in an embodiment of the utility model;
FIG. 4 is a schematic view of a cathode straight flow path on one side of a cathode bipolar plate according to an embodiment of the present utility model;
Fig. 5 is a schematic view of the cathode serpentine flow channel on the other side of the cathode bipolar plate in an embodiment of the utility model.
Marked in the figure as: 10-end plate assembly, 11-anode end plate, 12-cathode end plate, 20-collector plate assembly, 21-anode collector plate, 22-cathode collector plate, 23-anode connection joint, 24-cathode connection joint, 30-adjustable bipolar plate assembly, 31-anode bipolar plate, 311-anode straight flow channel, 312-anode serpentine flow channel, 313-first positioning hole, 32-cathode bipolar plate, 321-cathode straight flow channel, 322-cathode serpentine flow channel, 323-second positioning hole, 40-sealing gasket unit, 41-anode sealing gasket, 42-cathode sealing gasket.
Detailed Description
The following detailed description of the embodiments of the utility model, given by way of example only, is presented in the accompanying drawings to aid those skilled in the art in a more complete, accurate and thorough understanding of the inventive concepts and aspects of the utility model, and to facilitate their practice.
Fig. 1 is a schematic structural view of a battery cell testing jig in an embodiment of the utility model.
As shown in fig. 1, the single cell test fixture provided by the present utility model includes an end plate assembly 10, a collector plate assembly 20, and an adjustable bipolar plate assembly 30.
The end plate assembly 10 includes an anode end plate 11 and a cathode end plate 12, and a current collector assembly 20 is disposed between the end plate assemblies 10, including an anode current collector 21 and a cathode current collector 22, the anode current collector 21 being disposed on the anode end plate 11, and the cathode current collector 22 being disposed on the cathode end plate 12. An anode connection joint 23 is arranged on the anode current collecting plate 21, a cathode connection joint 24 is arranged on the cathode current collecting plate 22, and the anode connection joint 23 and the cathode connection joint 24 are used for being connected with test equipment.
FIG. 2 is a schematic view of a straight-line anode flow channel on one side of an anode bipolar plate according to an embodiment of the utility model; FIG. 3 is a schematic view of the structure of an anode serpentine flow channel on the other side of an anode bipolar plate in an embodiment of the utility model;
FIG. 4 is a schematic view of a cathode straight flow path on one side of a cathode bipolar plate according to an embodiment of the present utility model; fig. 5 is a schematic view of the cathode serpentine flow channel on the other side of the cathode bipolar plate in an embodiment of the utility model.
As shown in fig. 2, 3, 4 and 5, an adjustable bipolar plate assembly 30 is disposed between the current collector plate assemblies 20 and includes an anode bipolar plate 31 and a cathode bipolar plate 32. An anode straight flow channel 311 is arranged on one side of the anode bipolar plate 31, an anode serpentine flow channel 312 is arranged on the other side of the anode bipolar plate, a cathode straight flow channel 321 is arranged on one side of the cathode bipolar plate 32, and a cathode serpentine flow channel 322 is arranged on the other side of the cathode bipolar plate, so that the performance test of an operator on a membrane electrode under different flow fields is met.
The anode bipolar plate 31 may be a metal anode bipolar plate or a graphite anode bipolar plate, and the cathode bipolar plate 32 may be a metal cathode bipolar plate or a graphite cathode bipolar plate. Thereby meeting the requirement that an operator performs performance tests on the membrane electrode under different bipolar plate materials.
The single cell test fixture provided by the utility model further comprises a sealing gasket unit 40, wherein the sealing gasket unit 40 comprises an anode sealing gasket 41 and a cathode sealing gasket 42, the anode sealing gasket 41 is arranged between the anode current collecting plate 21 and the anode bipolar plate 31, and the cathode sealing gasket 42 is arranged between the cathode current collecting plate 22 and the cathode bipolar plate 32.
The anode bipolar plate 31 is provided with a first positioning hole 313, and the cathode bipolar plate 32 is provided with a second positioning hole 323 which is matched with the first positioning hole 313. Through holes matched with the first positioning holes 313 are formed in the anode end plate 11 and the anode current collecting plate 21, and through holes matched with the second positioning holes 323 are formed in the cathode end plate 12 and the cathode current collecting plate 22, so that an operator can conveniently assemble the end plate assembly 10, the current collecting plate assembly 20, the adjustable bipolar plate assembly 30 and the sealing gasket unit 40 according to test requirements and fix the end plate assembly, the current collecting plate assembly 20, the adjustable bipolar plate assembly 30 and the sealing gasket unit 40 through screws, and the test results are prevented from being scattered in the test process.
The operator can also fasten together the tie end plate assembly 10, the header plate assembly 20, the adjustable bipolar plate assembly 30, and the gasket unit 40 for easy operator securement.
When the single cell testing fixture provided by the utility model is used for testing the performance of single cells, when the performance of the single cells is influenced by the straight flow field and the graphite double electrodes, the anode current collecting plate 21 is arranged on the anode end plate 11, the cathode current collecting plate 22 is arranged on the cathode end plate 12, the anode sealing gasket 41 is arranged on the anode current collecting plate 21, the cathode sealing gasket 42 is arranged on the cathode current collecting plate 22, and the anode sealing gasket 41 and the cathode sealing gasket 42 can enhance the conductivity and the tightness of the anode bipolar plate 31 and the cathode bipolar plate 32. The graphite anode bipolar plate 31 is arranged on the anode sealing pad 41, one surface provided with the anode serpentine flow channel 312 is attached to the anode sealing pad 41, the graphite cathode bipolar plate 32 is arranged on the cathode sealing pad 42, one surface provided with the cathode serpentine flow channel 322 is attached to the cathode sealing pad 42, and the membrane electrode is arranged between the anode bipolar plate 31 and the cathode bipolar plate 32, and a sealing gasket, generally PEN material, can be added between the membrane electrode and the bipolar plate according to requirements in consideration of sealing and air tightness. The two sides of the membrane electrode are respectively provided with an anode linear flow channel 311 and a cathode linear flow channel 321, so that the performance test of the single cell under the graphite double-electrode linear flow field can be performed. When the performance influence of the bipolar plates in other flow fields or other materials on the single cells is required to be tested, only the directions and the materials of the anode bipolar plate 31 and the cathode bipolar plate 32 are required to be replaced, so that the testing is convenient for operators, and the testing efficiency is improved.
Effects and effects of the examples
The single cell testing fixture provided by the utility model comprises an end plate assembly 10, a current collecting plate assembly 20 and an adjustable bipolar plate assembly 30, wherein the end plate assembly 10 comprises an anode end plate 11 and a cathode end plate 12, the current collecting plate assembly 20 is arranged between the end plate assemblies 10, the current collecting plate assembly 20 comprises an anode current collecting plate 21 and a cathode current collecting plate 22, the anode current collecting plate 21 is arranged on the anode end plate 11, the cathode current collecting plate 22 is arranged on the cathode end plate 12, the adjustable bipolar plate assembly 30 is arranged between the current collecting plate assemblies 20, a membrane electrode is arranged between the adjustable bipolar plate assemblies 30, and an operator can select bipolar plates in different forms for testing through testing, so that the performance of the membrane electrode under different flow fields is tested. The single cell testing clamp provided by the utility model is convenient for an operator to perform testing operation, and can meet the requirement that the operator performs membrane electrode performance testing on the membrane electrode in different flow fields.
The utility model is described above by way of example with reference to the accompanying drawings. It will be clear that the utility model is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present utility model; or the utility model is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the utility model.
Claims (7)
1. A single cell test fixture, comprising:
An end plate assembly (10) comprising an anode end plate (11) and a cathode end plate (12);
A current collecting plate assembly (20) disposed between the end plate assemblies (10) and including an anode current collecting plate (21) and a cathode current collecting plate (22), the anode current collecting plate (21) being disposed on the anode end plate (11), the cathode current collecting plate (22) being disposed on the cathode end plate (12);
an adjustable bipolar plate assembly (30) is disposed between the collector plate assemblies (20).
2. The cell testing fixture of claim 1, wherein:
The adjustable bipolar plate assembly (30) includes an anode bipolar plate (31) and a cathode bipolar plate (32).
3. The cell testing fixture of claim 2, wherein:
An anode straight flow channel (311) is arranged on one side of the anode bipolar plate (31), and an anode serpentine flow channel (312) is arranged on the other side of the anode bipolar plate; a cathode straight flow passage (321) is arranged on one side of the cathode bipolar plate (32), and a cathode serpentine flow passage (322) is arranged on the other side of the cathode bipolar plate.
4. A cell testing fixture according to claim 3, wherein:
the anode bipolar plate (31) is a metal anode bipolar plate or a graphite anode bipolar plate, and the cathode bipolar plate (32) is a metal cathode bipolar plate or a graphite cathode bipolar plate.
5. The battery cell testing fixture of claim 4, further comprising:
And a gasket unit (40) including an anode gasket (41) and a cathode gasket (42), the anode gasket (41) being disposed between the anode current collecting plate (21) and the anode bipolar plate (31), and the cathode gasket (42) being disposed between the cathode current collecting plate (22) and the cathode bipolar plate (32).
6. The cell testing fixture of claim 5, wherein:
the anode bipolar plate (31) is provided with a first positioning hole (313), and the cathode bipolar plate (32) is provided with a second positioning hole (323) which is matched with the first positioning hole (313).
7. The cell testing fixture of claim 5, wherein:
The end plate assembly (10), the current collector plate assembly (20) and the adjustable bipolar plate assembly (30) are secured together by straps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323232952.XU CN221426727U (en) | 2023-11-29 | 2023-11-29 | Single cell test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323232952.XU CN221426727U (en) | 2023-11-29 | 2023-11-29 | Single cell test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221426727U true CN221426727U (en) | 2024-07-26 |
Family
ID=91976860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323232952.XU Active CN221426727U (en) | 2023-11-29 | 2023-11-29 | Single cell test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221426727U (en) |
-
2023
- 2023-11-29 CN CN202323232952.XU patent/CN221426727U/en active Active
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