CN104360271A - Flow field plate used for assembling and testing fuel cells of different flow fields at one step and testing method - Google Patents
Flow field plate used for assembling and testing fuel cells of different flow fields at one step and testing method Download PDFInfo
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- CN104360271A CN104360271A CN201410576759.4A CN201410576759A CN104360271A CN 104360271 A CN104360271 A CN 104360271A CN 201410576759 A CN201410576759 A CN 201410576759A CN 104360271 A CN104360271 A CN 104360271A
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Abstract
The invention relates to a testing method of fuel cells of different flow fields on the basis of a same flow field plate. By the aid of a variable-runner type novel flow field plate self-designed, mutual conversion of the fuel cells of three different flow fields is simply and conveniently realized. The flow field plate comprises a plurality of horizontal and vertical runners, and the runners are provided with node switches to control opening or closing of the runners. By changing the switch stages of nodes on the different runners, the fuel cells of the three different flow fields can be realized without assembling each time. Via testing the fuel cells of the different flow fields by once assembly, uniformity of external and internal conditions of the cells is guaranteed, that is, research and optimization of the performances of the fuel cells of the three different flow fields can be completed symmetrically and uniformly by testing under the condition of a completely same cell membrane electrode component.
Description
Technical field
The present invention relates to for the flow-field plate of an assembling test different flow fields fuel cell and the method for testing to different flow fields fuel cell thereof, particularly relate to a kind of method of testing realizing different flow fields fuel cell based on same flow field plate.
Background technology
Fuel cell technology for power generation is the clean power technology of 21 century first-selection, is expected the contradictory problems alleviating existing energy development and environmental pollution, avoids air pollution and haze weather.Country " 12 " planning is classified as the field of giving priority to, and National Program for Medium-to Long-term Scientific and Technological Development is classified as cutting edge technology.
One of focus of fuel cell is the research to fuel battery performance, and the flow-field plate of fuel cell has become the key factor improving battery performance and cost performance, and be also the focus that current researcher is paid close attention to, flow field structure directly affects the performance of fuel cell, and then affects its business-like application prospect.
In these three kinds of different flow fields performance studies parallel to fuel cell, snakelike and interdigital, traditional experiment is substantially all adopt different flow fields, assembles different batteries respectively and tests.The consistance of outside batteries input variable can only be ensured like this, such as temperature, pressure, humidity etc.Such as, but after each assembling, the parameter of inside battery changes, MEA(membrane electrode assembly) inner catalyst distribution, the distortion of film, impedance and ECA(electrochemical activation area) etc.The change of inside battery parameter, the result directly caused is: the scientific research personnel that possibility is different, and identical outside experiment condition draws different results.So be necessary that stream field structure carries out furtheing investigate and optimizing.Important technological problems to be solved by this invention just system, the performance of unified parallel, the snakelike and interdigital three kinds of different flow fields fuel cells of research, for fuel battery flow field design provides theoretical foundation, to optimizing flow field structure, improve fuel battery performance.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of method of testing realizing different flow fields fuel cell based on same flow field plate.
The object of the invention is to be achieved through the following technical solutions: the method for testing realizing different flow fields fuel cell based on same flow field plate, comprise a kind of flow-passage-changeable formula new flow field plate of designed, designed, this flow-field plate is made up of multiple level and vertical runner, runner there is Node Switch, controls the conducting of this runner or close.By changing the state of Node Switch on different runner, the fuel cell that parallel, snakelike and interdigital three kinds of different flow fields are changed mutually can be realized.
The method of testing realizing different flow fields fuel cell based on same flow field plate of the present invention, during experiment, VersaSTAT3 is utilized to test the polarization curve of three kinds of different flow fields fuel cells, electrochemical impedance spectroscopy (EIS) and cyclic voltammetric (CV) curve, polarization curve data input Origin software, draw, the situation that analyzing activated loss, ohmic loss and concentration difference are lost.
Compared with prior art, tool has the following advantages in the present invention:
1, the method for testing realizing different flow fields fuel cell based on same flow field plate of the present invention, only need conducting and the closed condition by changing node on different runner, the mutual conversion of three kinds of different flow fields fuel cells can be realized, and do not need the fuel cell at every turn assembling different flow field all respectively, simple to operation.
2, the method for testing realizing different flow fields fuel cell based on same flow field plate of the present invention, just can test different flow fields fuel cell based on same flow field plate through once assembling, ensure that the consistance of outside batteries and interior condition, namely can under an identical battery, mode by experiment, system, the unified research completing three kinds of different flow fields fuel battery performances and optimization.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention's flow-passage-changeable formula used new flow field plate.
Fig. 2 is the prototype figure of the present invention's flow-passage-changeable formula used new flow field plate.
Fig. 3 is that the present invention's flow-passage-changeable formula used new flow field plate is transformed into parallel-flow field pattern.
Fig. 4 is that the present invention's flow-passage-changeable formula used new flow field plate is transformed into serpentine flow field pattern.
Fig. 5 is that the present invention's flow-passage-changeable used formula new flow field plate is transformed into interdigital flow field figure.
Embodiment
Preferred embodiment for the present invention and detailed technology content, be described as follows, but protection scope of the present invention not limited by specific embodiment, be as the criterion with claims referring now to accompanying drawing.In addition, with without prejudice under the prerequisite of technical solution of the present invention, any change that the those of ordinary skill in the art made the present invention easily realize or change all will fall within right of the present invention.
Embodiment 1
See Fig. 2 and Fig. 3, its display the present invention is based on same flow field plate realize different flow fields fuel cell method of testing work time, by changing the state of Node Switch on different runner, realize the fuel cell in different flow field.Closed node 3,6,9,12,15,18, all conductings of all the other nodes, namely the present invention's flow-passage-changeable formula used new flow field plate is transformed into parallel flow field.Based on this flow-field plate, parallel flow field fuel cell is tested: during experiment, VersaSTAT3 is utilized to test the polarization curve of three kinds of different flow fields fuel cells, electrochemical impedance spectroscopy (EIS) and cyclic voltammetric (CV) curve, polarization curve data input Origin software, draw, the situation that analyzing activated loss, ohmic loss and concentration difference are lost.
Embodiment 2
See Fig. 2 and Fig. 4, be with the difference of embodiment 1, conducting node 1,3,6,9,12,15,18,20, all the other nodes are all closed, and namely the present invention's flow-passage-changeable formula used new flow field plate is transformed into serpentine flow.The other the same as in Example 1, at this no longer Ao Shu.
Embodiment 3
See Fig. 2 and Fig. 5, be with the difference of embodiment 1, conducting node Isosorbide-5-Nitrae, 7,10,13,16,19, all the other nodes are all closed, and namely the present invention's flow-passage-changeable used formula new flow field plate is transformed into interdigital flow field.The other the same as in Example 1, at this no longer Ao Shu.
Claims (8)
1. for the flow-field plate of an assembling test different flow fields fuel cell, it is characterized in that, described flow-field plate is a kind of flow-passage-changeable formula new flow field plate of designed, designed, and this flow-field plate is made up of multiple level and vertical runner, and runner is respectively equipped with Node Switch.
2. as claimed in claim 1 for the flow-field plate of an assembling test different flow fields fuel cell, it is characterized in that, by changing the state of Node Switch on different runner, the fuel cell that parallel, snakelike and interdigital three kinds of different flow fields are changed mutually can be realized.
3. as claimed in claim 1 or 2 for the flow-field plate of an assembling test different flow fields fuel cell, it is characterized in that, the runner of described flow-field plate is provided with Node Switch (1)--(20), closed node (3), (6), (9), (12), (15), (18), the all conductings of all the other nodes, its flow-field plate is transformed into parallel flow field.
4., as claimed in claim 1 or 2 for the flow-field plate of an assembling test different flow fields fuel cell, it is characterized in that, the runner of described flow-field plate is provided with Node Switch (1)-(20), conducting node (1), (3), (6), (9), (12),, (15), (18), (20), all the other nodes are all closed, and flow-field plate is transformed into serpentine flow.
5. as claimed in claim 1 or 2 for the flow-field plate of an assembling test different flow fields fuel cell, it is characterized in that, the runner of described flow-field plate is provided with Node Switch (1)-(20), conducting node (1), (4), (7), (10), (13), (16), (19), all the other nodes are all closed, and flow-field plate is transformed into interdigital flow field.
6. the method for testing of the flow-field plate of the different flow fields of an assembling test as claimed in claim 1 fuel cell, its feature comprises following testing procedure:
Utilize the flow-passage-changeable formula new flow field plate of this designed, designed, assemble a fuel cell;
By changing conducting and the closed condition of node on different runner, realize the fuel cell that parallel, snakelike and interdigital three kinds of different flow fields are changed mutually;
During experiment, VersaSTAT3 is utilized to test the polarization curve of three kinds of different flow fields fuel cells, electrochemical impedance spectroscopy (EIS) and cyclic voltammetric (CV) curve, polarization curve data input Origin software, draw, the situation that analyzing activated loss, ohmic loss and concentration difference are lost.
7. method of testing according to claim 6, is characterized in that, just can realize testing different flow fields fuel cell based on same flow field plate through once assembling.
8. method of testing according to claim 6, it is characterized in that, test process ensure that the consistance of outside batteries and interior condition, namely can under an identical cell membrane electrode assemblies, mode by experiment, system, the unified research completing three kinds of different flow fields fuel battery performances and optimization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410576759.4A CN104360271B (en) | 2014-10-24 | 2014-10-24 | Flow-field plate and method of testing for the different flow field fuel cells of an assembling test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410576759.4A CN104360271B (en) | 2014-10-24 | 2014-10-24 | Flow-field plate and method of testing for the different flow field fuel cells of an assembling test |
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| CN104360271A true CN104360271A (en) | 2015-02-18 |
| CN104360271B CN104360271B (en) | 2017-08-15 |
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| CN201410576759.4A Expired - Fee Related CN104360271B (en) | 2014-10-24 | 2014-10-24 | Flow-field plate and method of testing for the different flow field fuel cells of an assembling test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094135A (en) * | 2021-10-10 | 2022-02-25 | 北京工业大学 | Liquid water self-adaptive flow field plate of fuel cell capable of automatically switching parallel flow field and serpentine flow field |
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| CN104360271B (en) | 2017-08-15 |
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