CN114325035B - Fuel cell membrane electrode consistency screening device and method - Google Patents
Fuel cell membrane electrode consistency screening device and method Download PDFInfo
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- CN114325035B CN114325035B CN202111349213.1A CN202111349213A CN114325035B CN 114325035 B CN114325035 B CN 114325035B CN 202111349213 A CN202111349213 A CN 202111349213A CN 114325035 B CN114325035 B CN 114325035B
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- 239000000446 fuel Substances 0.000 title claims abstract description 59
- 238000012216 screening Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 34
- 210000000170 cell membrane Anatomy 0.000 title claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 98
- 238000012360 testing method Methods 0.000 claims abstract description 60
- 210000004027 cell Anatomy 0.000 claims abstract description 46
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000001257 hydrogen Substances 0.000 claims abstract description 22
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 22
- 238000004458 analytical method Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000000178 monomer Substances 0.000 claims abstract description 13
- 239000011261 inert gas Substances 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 15
- 230000005284 excitation Effects 0.000 claims description 5
- 238000002484 cyclic voltammetry Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 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
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Abstract
The invention discloses a fuel cell membrane electrode consistency screening device and a method, wherein the device comprises the following components: the detachable positioning assembly is used for oppositely positioning a plurality of bipolar plates so as to form a test space for testing the membrane electrode between the bipolar plates; a sealing device comprising an anode inlet and a cathode inlet; and the screening component is used for obtaining the performance parameters of each membrane electrode through a preset test strategy test after the hydrogen is introduced into the anode inlet and the inert gas is introduced into the cathode inlet during the test, and carrying out consistency analysis on the membrane electrode according to the performance parameters so as to screen the membrane electrode meeting the consistency condition. The device can effectively solve the problem of consistency of the fuel cell system before the assembly of the electric pile, can effectively solve the problem of quick screening and detection of the fuel cell monomers, and has the advantages of simple structure and low cost.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a device and a method for screening consistency of membrane electrodes of fuel cells.
Background
A fuel cell is a chemical device that converts chemical energy of fuel directly into electrical energy, and is also called an electrochemical generator, such as a proton exchange membrane fuel cell. The proton exchange membrane fuel cell stack is formed by stacking a plurality of single cells in a serial connection mode, and inconsistency caused by single cell performance difference is one of important influencing factors for influencing high-performance exertion of the electric stack.
There may also be inconsistencies in the finished product due to variations in the production process of the fuel cell cells. The solution to the problem of stack consistency in the related art mainly includes: the methods of stack structure optimization, material consistency improvement and the like, but the problem of membrane electrode inconsistency still exists objectively and is difficult to eliminate.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent.
Therefore, an object of the present invention is to provide a fuel cell membrane electrode uniformity screening device, which can effectively solve the uniformity problem of fuel cells before assembling a stack, and can effectively solve the problems of rapid screening and detection of fuel cell monomers, and has the advantages of simple structure and low cost.
Another object of the present invention is to provide a method for screening consistency of membrane electrodes of fuel cells.
In order to achieve the above object, an embodiment of an aspect of the present invention provides a fuel cell membrane electrode uniformity screening apparatus, including: the detachable positioning assembly is used for oppositely positioning a plurality of bipolar plates so as to form a test space for testing the membrane electrode between the bipolar plates; a sealing device comprising an anode inlet and a cathode inlet; and the screening component is used for obtaining the performance parameters of each membrane electrode through a preset test strategy test after the hydrogen is introduced into the anode inlet and the inert gas is introduced into the cathode inlet during the test, and carrying out consistency analysis on the membrane electrode according to the performance parameters so as to screen the membrane electrode meeting the consistency condition.
The consistency screening device for the membrane electrode of the fuel cell can rapidly screen the consistency of the membrane electrode, has higher consistency of the screened membrane electrode, and can effectively ensure the consistency of the membrane electrode performance in the same cell stack, thereby effectively solving the consistency problem of the fuel cell before the assembly of the cell stack, simultaneously effectively solving the rapid screening and detection problems of the single fuel cell, and having the advantages of simple structure and low cost.
In addition, the fuel cell membrane electrode uniformity screening apparatus according to the above embodiment of the present invention may further have the following additional technical features:
further, in one embodiment of the present invention, the detachable stop assembly includes: the insulation pneumatic pressing plate is provided with a cathode inlet and a cathode outlet at one side, and a preset pressing force is applied to one side of the insulation pneumatic pressing plate during testing; the first end plate is positioned between the other side of the insulating pneumatic pressing plate and the bipolar plate, one side of the second end plate is provided with an anode inlet and an anode outlet, and the first end plate and the second end plate are provided with positioning holes which are arranged corresponding to the bipolar plate; and the limiting rod is arranged corresponding to the positioning hole, so that the bipolar plate is positioned through the positioning hole.
Further, in one embodiment of the present invention, the sealing device includes: and the sealing ring is used for sealing the test space.
Further, in one embodiment of the present invention, the screening component includes: test wiring and a processor connected to all bipolar plates through the test wiring to obtain performance parameters and perform a consistency analysis at the time of testing.
Further, in one embodiment of the present invention, the performance parameters include a catalyst active area of the membrane electrode, an electric double layer capacitance value, a hydrogen permeation current value, a short circuit resistance value, and an ohmic resistance value.
Further, in one embodiment of the present invention, the consistency analysis formula is:
wherein ζ is a parameter weight, δ is the catalyst active area, C is the electric double layer capacitance value, I is the hydrogen permeation current value, ρ is the short circuit resistance value, and λ is an ohmic resistance value. i represents the membrane electrode number, t represents the test value, and ref represents the target optimum value.
In order to achieve the above object, another embodiment of the present invention provides a method for screening uniformity of a membrane electrode of a fuel cell, where the method is applied to the apparatus for screening uniformity of a membrane electrode of a fuel cell described in the above embodiment, and includes the following steps: selecting membrane electrodes according to the number of the galvanic pile monomers and placing the membrane electrodes in a test space; introducing hydrogen gas into an anode inlet and introducing inert gas into a cathode inlet respectively, wherein the flow, pressure, humidity and membrane electrode working temperature of the gas are introduced according to the condition that the fuel cell stack is consistent when in idle operation; and testing through a preset testing strategy to obtain the performance parameters of each membrane electrode, and carrying out consistency analysis on the membrane electrodes according to the performance parameters so as to screen the membrane electrodes meeting the consistency conditions.
The consistency screening method for the membrane electrode of the fuel cell can rapidly screen the consistency of the membrane electrode, has higher consistency of the screened membrane electrode, and can effectively ensure the consistency of the membrane electrode performance in the same cell stack, thereby effectively solving the consistency problem of the fuel cell before the assembly of the cell stack, simultaneously effectively solving the rapid screening and detection problems of the single fuel cell, and having the advantages of simple structure and low cost.
In addition, the method for screening the consistency of the membrane electrode of the fuel cell according to the embodiment of the invention can also have the following additional technical characteristics:
further, in an embodiment of the present invention, the selecting the membrane electrode according to the number of the galvanic pile units to be placed in the test space includes: and selecting membrane electrodes according to 110% -130% of the number of the galvanic pile monomers, and placing the membrane electrodes in a test space.
Further, in one embodiment of the present invention, the performance parameters include a catalyst active area of the membrane electrode, an electric double layer capacitance value, a hydrogen permeation current value, a short circuit resistance value, and an ohmic resistance value.
Further, in one embodiment of the present invention, the consistency analysis formula is:
wherein ζ is a parameter weight, δ is the catalyst active area, C is the electric double layer capacitance value, I is the hydrogen permeation current value, ρ is the short circuit resistance value, and λ is an ohmic resistance value. i represents the membrane electrode number, t represents the test value, and ref represents the target optimum value.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a fuel cell membrane electrode uniformity screening apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing a structure of a fuel cell membrane electrode uniformity screening apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic illustration of an end plate installation according to one embodiment of the invention;
FIG. 4 is a schematic view of a bipolar plate according to one embodiment of the present invention;
FIG. 5 is a flow chart of consistency screening according to one embodiment of the present invention;
fig. 6 is a flow chart of a method of screening for consistency of membrane electrodes of a fuel cell according to one embodiment of the invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The following describes a fuel cell membrane electrode uniformity screening apparatus and method according to an embodiment of the present invention with reference to the accompanying drawings, and first, the fuel cell membrane electrode uniformity screening apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a block schematic diagram of a fuel cell membrane electrode uniformity screening apparatus according to an embodiment of the present invention.
As shown in fig. 1, the fuel cell membrane electrode uniformity screening apparatus 10 includes: removable positioning assembly 100, sealing device 200, and screening assembly 300.
Wherein, the detachable positioning assembly 100 is used for positioning a plurality of bipolar plates in pairs so that a testing space for testing the membrane electrode is formed between the bipolar plates; the sealing device 200 includes an anode inlet and a cathode inlet; the screening assembly 300 is used for obtaining performance parameters of each membrane electrode through a preset test strategy after hydrogen is introduced into the anode inlet and inert gas is introduced into the cathode inlet during testing, and performing consistency analysis on the membrane electrode according to the performance parameters so as to screen the membrane electrode meeting consistency conditions.
The preset test strategy can be a micro-current excitation method, a cyclic voltammetry, a linear potential scanning method and the like; the performance parameters comprise the catalyst active area of the membrane electrode, an electric double layer capacitance value, a hydrogen permeation current value, a short circuit resistance value and an ohmic resistance value; the consistency condition may be a membrane electrode whose consistency parameter obtained by consistency analysis satisfies a certain condition, for example, after the calculated monomer consistency parameter, the largest and smallest preset number, for example, 10% of the battery monomers are removed, so that the remaining monomers have better consistency, that is, the consistency condition is satisfied.
It can be understood that in the embodiment of the application, the membrane electrode is quickly assembled into the fuel cell stack convenient to disassemble, and the catalyst active area, the double-layer capacitance, the hydrogen permeation current, the short-circuit resistance and the ohmic resistance parameters of each membrane electrode in the stack are tested by a micro-current excitation method, a cyclic voltammetry method, a linear potential scanning method and the like, and recording and screening are performed to ensure that the performance of the membrane electrodes in the same stack is consistent. The fuel cell stack is a stack body formed by a membrane electrode to be tested and the screening device in the embodiment of the application.
According to the embodiment of the application, after the performance parameters are obtained, the performance parameters can be analyzed through a consistency analysis formula, wherein the consistency analysis formula is as follows:
wherein ζ is a parameter weight, δ is the catalyst active area, C is the electric double layer capacitance value, I is the hydrogen permeation current value, ρ is the short circuit resistance value, and λ is an ohmic resistance value. i represents the membrane electrode number, t represents the test value, and ref represents the target optimum value.
ξ 1 Taking 0.3-0.6 as the weight of the active area of the catalyst; zeta type toy 2 The weight of the double-layer capacitance value is 0.01 to 0.05, and the value of xi 3 The weight of the hydrogen permeation current value is 0.1 to 0.3, and the value of xi is 0.1 to 0.3 4 The weight of the short circuit resistance value is 0.02 to 0.05, and xi 5 The weight of the ohmic resistance value is 0.2 to 0.5.
Further, in one embodiment of the present application, the removable stop assembly 100 includes: the device comprises an insulating pneumatic pressing plate, a first end plate, a second end plate and a limiting rod.
Wherein, one side of the insulating pneumatic pressing plate is provided with a cathode inlet and a cathode outlet, and a preset pressing force is applied to one side of the insulating pneumatic pressing plate during testing; the first end plate is positioned between the other side of the insulating pneumatic pressing plate and the bipolar plate, one side of the second end plate is provided with an anode inlet and an anode outlet, and the first end plate and the second end plate are provided with positioning holes which are arranged corresponding to the bipolar plate; the limiting rod is arranged corresponding to the positioning hole so as to position the bipolar plate through the positioning hole.
Specifically, as shown in fig. 2, the device of the embodiment of the application may include an insulating pneumatic pressing plate, end plates, bipolar plates, and limiting rods, as shown in fig. 3, the four corners of the end plates are respectively provided with the limiting rods of the bipolar plates, the limiting rods are used for fixing the assembled fuel cell unit, and the upper end plate and the lower end plate are connected through the limiting rods; as shown in fig. 4, the four corners of the bipolar plate are respectively provided with a positioning hole, the bipolar plate is positioned by inserting a limiting rod, and meanwhile, the interior of the bipolar plate does not contain a cooling runner.
Further, in one embodiment of the present application, as shown in fig. 2, the sealing device 200 includes: and (3) sealing rings. The sealing ring is used for sealing the test space.
Further, as shown in fig. 2, in one embodiment of the present application, the screening component 300 includes: test wiring and a processor. Wherein the processor is connected to all bipolar plates by test wiring to obtain performance parameters and perform a consistency analysis at the time of testing.
The screening process of the fuel cell membrane electrode uniformity screening apparatus will be described with reference to fig. 5, specifically as follows:
(1) Selecting membrane electrodes according to 110% -130% of the number N of the galvanic pile monomers;
(2) Forming a galvanic pile by the membrane electrode and the screening device, and placing the selected membrane electrode in the galvanic pile;
(3) Hydrogen is respectively introduced into an anode inlet and inert gas is introduced into a cathode inlet of the proton exchange membrane fuel cell sealing device, and the flow, pressure, humidity and membrane electrode working temperature of the introduced gas are consistent with the conditions when the actual fuel cell stack works at idle speed. The catalyst active area, the double-layer capacitance, the hydrogen permeation current, the short-circuit resistance and the ohmic resistance of each single cell are obtained through a constant current excitation method test;
(4) And analyzing the consistency of the membrane electrode by adopting a weighting method according to the four obtained parameters:
wherein ζ is a parameter weight, δ is the catalyst active area, C is the electric double layer capacitance value, I is the hydrogen permeation current value, ρ is the short circuit resistance value, and λ is an ohmic resistance value. i represents the membrane electrode number, t represents the test value, and ref represents the target optimum value.
(5) And according to the membrane electrode consistency parameters calculated by the formula, removing the maximum and minimum 10% of membrane electrodes respectively, and ensuring that the rest membrane electrodes have better consistency.
(6) The membrane electrode and the bipolar plate which are screened out and have better consistency are assembled into a fuel cell stack; meanwhile, the membrane electrode removed in the consistency screening is stored and used for participating in the next screening.
According to the fuel cell membrane electrode consistency screening device provided by the embodiment of the invention, consistency screening can be performed on the membrane electrode rapidly, the consistency of the screened membrane electrode is higher, and the consistency of the membrane electrode performance in the same electric pile can be effectively ensured, so that the consistency problem of the fuel cell can be effectively solved before the electric pile is assembled, and meanwhile, the problems of rapid screening and detection of the fuel cell monomers can be effectively solved, and the fuel cell consistency screening device has the advantages of simple structure and low cost.
Next, a method for screening consistency of a fuel cell membrane electrode according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 6 is a flow chart of a fuel cell membrane electrode uniformity screening method according to an embodiment of the present invention.
The method is applied to the fuel cell membrane electrode consistency screening device of the embodiment, and comprises the following steps:
in step S101, selecting membrane electrodes according to the number of galvanic pile monomers and placing the membrane electrodes in a test space;
in step S102, hydrogen is respectively introduced into the anode inlet and inert gas is introduced into the cathode inlet, wherein the flow rate, pressure, humidity and membrane electrode working temperature of the gas are introduced according to the conditions consistent when the fuel cell stack works at idle speed;
in step S103, the performance parameters of each membrane electrode are obtained through testing by a preset testing strategy, and the membrane electrodes are subjected to consistency analysis according to the performance parameters so as to screen the membrane electrodes meeting the consistency conditions.
Further, in one embodiment of the present invention, selecting the membrane electrode to be placed in the test space according to the number of the galvanic pile units includes: and selecting membrane electrodes according to 110% -130% of the number of the galvanic pile monomers, and placing the membrane electrodes in a test space.
Further, in one embodiment of the present invention, the performance parameters include a catalyst active area of the membrane electrode, an electric double layer capacitance value, a hydrogen permeation current value, a short circuit resistance value, and an ohmic resistance value.
Further, in one embodiment of the present invention, the consistency analysis formula is:
wherein ζ is a parameter weight, δ is the catalyst active area, C is the electric double layer capacitance value, I is the hydrogen permeation current value, ρ is the short circuit resistance value, and λ is an ohmic resistance value. i represents the membrane electrode number, t represents the test value, and ref represents the target optimum value.
It should be noted that the foregoing explanation of the embodiment of the fuel cell membrane electrode uniformity screening apparatus is also applicable to the fuel cell membrane electrode uniformity screening method of this embodiment, and will not be repeated here.
According to the method for screening the consistency of the membrane electrode of the fuel cell, disclosed by the embodiment of the invention, the consistency of the membrane electrode can be screened rapidly, the consistency of the screened membrane electrode is higher, and the consistency of the membrane electrode performance in the same electric pile can be effectively ensured, so that the consistency problem of the fuel cell can be effectively solved before the electric pile is assembled, and meanwhile, the problems of rapid screening and detection of the single fuel cell can be effectively solved, and the method has the advantages of simple structure and low cost.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (5)
1. A fuel cell membrane electrode uniformity screening apparatus, comprising:
a detachable positioning assembly for positioning a plurality of bipolar plates such that a test space for testing a membrane electrode is formed between the bipolar plates, wherein the detachable positioning assembly comprises: the device comprises an insulating pneumatic pressing plate, a first end plate, a second end plate and a limiting rod, wherein one side of the insulating pneumatic pressing plate is provided with a cathode inlet and a cathode outlet, and a preset pressing force is applied to one side of the insulating pneumatic pressing plate during testing, the first end plate is positioned between the other side of the insulating pneumatic pressing plate and the bipolar plate, one side of the second end plate is provided with an anode inlet and an anode outlet, the first end plate and the second end plate are provided with positioning holes which are arranged corresponding to the bipolar plate, and the limiting rod is arranged corresponding to the positioning holes so as to position the bipolar plate through the positioning holes;
a sealing device comprising an anode inlet and a cathode inlet; and
the screening component is used for obtaining the performance parameters of each membrane electrode through a preset test strategy test after the hydrogen is introduced into the anode inlet and the inert gas is introduced into the cathode inlet during the test, and carrying out consistency analysis on the membrane electrode according to the performance parameters so as to screen the membrane electrode which meets the consistency condition, wherein the preset test strategy comprises a microcurrent excitation method, a cyclic voltammetry method and a linear potential scanning method; the performance parameters comprise the catalyst active area of the membrane electrode, an electric double layer capacitance value, a hydrogen permeation current value, a short circuit resistance value and an ohmic resistance value; the consistency analysis formula is:
wherein ζ is a parameter weight, δ is the catalyst active area, C is the electric double layer capacitance value, I is the hydrogen permeation current value, ρ is the short circuit resistance value, and λ is an ohmic resistance value, I is a membrane electrode number, t is a test value, and ref is a target optimal value.
2. The device of claim 1, wherein the sealing means comprises:
and the sealing ring is used for sealing the test space.
3. The apparatus of claim 1, wherein the screening component comprises:
test wiring and a processor connected to all bipolar plates through the test wiring to obtain performance parameters and perform a consistency analysis at the time of testing.
4. A method for screening the consistency of the membrane electrode of a fuel cell, which is applied to the screening device for the consistency of the membrane electrode of the fuel cell according to any one of claims 1 to 3, and comprises the following steps:
selecting membrane electrodes according to the number of the galvanic pile monomers and placing the membrane electrodes in a test space;
introducing hydrogen gas into an anode inlet and introducing inert gas into a cathode inlet respectively, wherein the flow, pressure, humidity and membrane electrode working temperature of the gas are introduced according to the condition that the fuel cell stack is consistent when in idle operation;
testing through a preset testing strategy to obtain performance parameters of each membrane electrode, and carrying out consistency analysis on the membrane electrodes according to the performance parameters so as to screen the membrane electrodes meeting consistency conditions, wherein the preset testing strategy comprises a microcurrent excitation method, a cyclic voltammetry method and a linear potential scanning method; the performance parameters comprise the catalyst active area of the membrane electrode, an electric double layer capacitance value, a hydrogen permeation current value, a short circuit resistance value and an ohmic resistance value; the consistency analysis formula is:
wherein ζ is a parameter weight, δ is the catalyst active area, C is the electric double layer capacitance value, I is the hydrogen permeation current value, ρ is the short circuit resistance value, and λ is an ohmic resistance value, I is a membrane electrode number, t is a test value, and ref is a target optimal value.
5. The method of claim 4, wherein selecting the membrane electrode to be placed in the test space according to the number of galvanic pile cells comprises:
and selecting membrane electrodes according to 110% -130% of the number of the galvanic pile monomers, and placing the membrane electrodes in a test space.
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| CN202111349213.1A CN114325035B (en) | 2021-11-15 | 2021-11-15 | Fuel cell membrane electrode consistency screening device and method |
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| CN102981124A (en) * | 2012-11-06 | 2013-03-20 | 清华大学 | Spot test method and test device for fuel cell stack membrane electrode conditions |
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| WO2016095238A1 (en) * | 2014-12-15 | 2016-06-23 | 中国科学院大连化学物理研究所 | Method and device for detecting pile consistency of proton exchange membrane fuel cell |
| CN110703102A (en) * | 2019-10-09 | 2020-01-17 | 清华大学 | Fuel cell stack membrane electrode parameter detection method and detection device |
| CN111276714A (en) * | 2020-02-12 | 2020-06-12 | 浙江锋源氢能科技有限公司 | Fuel cell assembly and method of assembling the same |
| CN112864411A (en) * | 2021-04-09 | 2021-05-28 | 上海兰友科技有限公司 | High-performance fuel cell bipolar plate, fuel cell and fuel cell stack |
-
2021
- 2021-11-15 CN CN202111349213.1A patent/CN114325035B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102981124A (en) * | 2012-11-06 | 2013-03-20 | 清华大学 | Spot test method and test device for fuel cell stack membrane electrode conditions |
| WO2016095238A1 (en) * | 2014-12-15 | 2016-06-23 | 中国科学院大连化学物理研究所 | Method and device for detecting pile consistency of proton exchange membrane fuel cell |
| CN105789660A (en) * | 2014-12-15 | 2016-07-20 | 中国科学院大连化学物理研究所 | Method and device for detecting consistency of proton exchange membrane fuel cell stack |
| CN104916855A (en) * | 2015-06-30 | 2015-09-16 | 中国东方电气集团有限公司 | Fuel cell device |
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| CN111276714A (en) * | 2020-02-12 | 2020-06-12 | 浙江锋源氢能科技有限公司 | Fuel cell assembly and method of assembling the same |
| CN112864411A (en) * | 2021-04-09 | 2021-05-28 | 上海兰友科技有限公司 | High-performance fuel cell bipolar plate, fuel cell and fuel cell stack |
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| CN114325035A (en) | 2022-04-12 |
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