CN114994135A - Proton exchange membrane quality evaluation method, apparatus, device, medium, and program product - Google Patents
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Abstract
The present application relates to a method, apparatus, device, medium, and program product for evaluating the quality of a proton exchange membrane. The method comprises the following steps: acquiring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane; determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the areas; and evaluating the quality of the proton exchange membrane according to the conductivity and the uniformity of the conductivity to obtain an evaluation result. By adopting the method, the quality of the proton exchange membrane can be evaluated from two aspects of conductivity and conductivity uniformity, and the accuracy of the quality evaluation of the proton exchange membrane is improved.
Description
Technical Field
The present application relates to the field of measurement technologies, and in particular, to a method, an apparatus, a device, a medium, and a program product for evaluating the quality of a proton exchange membrane.
Background
Proton Exchange Membrane Fuel Cells (PEMFCs) have the characteristics of high efficiency and low emission, are a new energy source, and have good application prospects in the field of automobile power systems. Among them, a Proton Exchange Membrane (PEM) is a core component of the PEMFC, and has an effect of conducting protons, and the quality of the PEM has an important influence on the performance of the PEMFC.
The quality of the PEM is usually evaluated by the conductivity of the PEM at present, but the evaluation mode is single and the evaluation accuracy of the quality of the PEM is low.
Disclosure of Invention
The application provides a proton exchange membrane quality evaluation method, a device, equipment, a medium and a program product, which can evaluate the quality of a proton exchange membrane from two aspects of conductivity and conductivity uniformity and improve the accuracy of proton exchange membrane quality evaluation.
In a first aspect, the present application provides a method for estimating the quality of a proton exchange membrane. The method comprises the following steps:
acquiring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane;
determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the areas;
and evaluating the quality of the proton exchange membrane according to the conductivity and the uniformity of the conductivity to obtain an evaluation result.
In one embodiment, determining the conductivity uniformity of the surface of the proton exchange membrane based on the conductivity of the plurality of regions comprises: and performing operation processing on the conductivity of the plurality of areas according to a preset algorithm to obtain the conductivity uniformity of the surface of the proton exchange membrane.
In one embodiment, obtaining the electrical conductivity of the plurality of regions on the surface of the proton exchange membrane comprises: acquiring the measurement voltage of each area on the surface of the proton exchange membrane; and determining the conductivity of each area on the surface of the proton exchange membrane according to the measured voltage and a pre-acquired frequency response curve.
In one embodiment, determining the conductivity from the measured voltage and a pre-acquired frequency response curve comprises: determining the characteristic frequency of the proton exchange membrane according to the frequency response curve; determining the target voltage of each area according to the characteristic frequency of the proton exchange membrane and the measured voltage of each area; the conductivity of each region is determined based on the target voltage for each region.
In one embodiment, determining the conductivity of each region based on the target voltage for each region comprises: determining the resistance of each region according to the target voltage of each region and the test current applied by the electrochemical instrument; the test current is variable frequency alternating current; the conductivity of each region is determined from the resistance of each region.
In one embodiment, determining the characteristic frequency of the proton exchange membrane according to the frequency response curve comprises: and determining the frequency corresponding to the intersection point of the frequency response curve and the frequency axis as the characteristic frequency of the proton exchange membrane.
In one embodiment, obtaining the measured voltage of each region on the surface of the proton exchange membrane comprises: and acquiring the measurement voltage of each area on the surface of the proton exchange membrane in a preset solution in the process of applying current by the electrochemical instrument.
In one embodiment, the quality evaluation of the proton exchange membrane according to the conductivity and the uniformity of the conductivity to obtain an evaluation result comprises: determining the conduction evaluation result of the proton exchange membrane according to the conductivity of each area of the proton exchange membrane and a preset threshold value; determining the uniformity evaluation result of the proton exchange membrane according to the conductivity uniformity of the surface of the proton exchange membrane; and determining the evaluation result of the proton exchange membrane according to the electric conduction evaluation result and the uniformity evaluation result.
In a second aspect, the present application also provides a proton exchange membrane quality assessment apparatus. The device comprises:
the acquisition module is used for acquiring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane;
the determining module is used for determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the multiple regions;
and the evaluation module is used for evaluating the quality of the proton exchange membrane according to the conductivity and the conductivity uniformity to obtain an evaluation result.
In a third aspect, the present application also provides a computer device. The computer device comprises a memory and a processor, the memory stores a computer program, and the processor realizes the following steps when executing the computer program:
acquiring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane;
determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the areas;
and evaluating the quality of the proton exchange membrane according to the conductivity and the uniformity of the conductivity to obtain an evaluation result.
In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of:
acquiring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane;
determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the areas;
and evaluating the quality of the proton exchange membrane according to the conductivity and the uniformity of the conductivity to obtain an evaluation result.
In a fifth aspect, the present application further provides a computer program product. The computer program product comprising a computer program which when executed by a processor performs the steps of:
acquiring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane;
determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the areas;
and evaluating the quality of the proton exchange membrane according to the conductivity and the uniformity of the conductivity to obtain an evaluation result.
The present application provides a proton exchange membrane quality evaluation method, apparatus, device, medium, and program product, which are capable of measuring the conductivity of a plurality of regions on the surface of a proton exchange membrane, respectively. The conductivity uniformity of the proton exchange membrane is then determined based on the difference between the conductivities of the regions. And finally, performing quality evaluation on the proton exchange membrane according to the specific sizes of the electric conductivities of the multiple regions and the uniformity of the electric conductivities to obtain an evaluation result. Therefore, the proton exchange membrane quality evaluation method can evaluate the quality of the proton exchange membrane from two aspects of conductivity and conductivity uniformity, and compared with a single conductivity evaluation mode, the proton exchange membrane quality evaluation method based on two parameters improves the accuracy of proton exchange membrane quality evaluation.
Drawings
FIG. 1 is a diagram illustrating an exemplary environment for use of the proton exchange membrane quality assessment method;
FIG. 2 is a schematic flow chart of a proton exchange membrane quality assessment method according to an embodiment;
FIG. 3 is a schematic illustration of the surface area of a proton exchange membrane in accordance with an embodiment;
FIG. 4 is another schematic flow chart of the proton exchange membrane quality assessment method in one embodiment;
FIG. 5 is a schematic diagram of a wire connection between an electrochemical device and a proton exchange membrane according to one embodiment;
FIG. 6 is a schematic flow chart illustrating a method for evaluating the quality of a PEM in one embodiment;
FIG. 7 is a schematic flow chart of another embodiment of a proton exchange membrane quality assessment method;
FIG. 8 is a schematic flow chart of a proton exchange membrane quality assessment method according to an embodiment;
FIG. 9 is a block diagram showing the construction of a proton exchange membrane quality evaluating apparatus according to an embodiment;
FIG. 10 is a diagram showing an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
The PEMFC has the characteristics of high efficiency and low emission, is a new energy source, and has a good application prospect in the field of automobile power systems. Among them, the PEM is a core component of the PEMFC, and has a function of conducting protons, and the quality of the PEM has an important influence on the performance of the PEMFC.
The quality of the PEM is usually evaluated by the conductivity of the PEM at present, but the evaluation mode is single and the accuracy of the evaluation on the quality of the PEM is low.
Based on the above, the application provides a proton exchange membrane quality evaluation method, device, equipment, medium and program product, which can evaluate the quality of a proton exchange membrane from two aspects of conductivity and conductivity uniformity, and improve the accuracy of proton exchange membrane quality evaluation.
The proton exchange membrane quality evaluation method provided by the embodiment of the application can be applied to the application environment shown in fig. 1. Wherein electrochemical instrument 102 communicates with server 104 via a network. The data storage system may store data that the server 104 needs to process. The data storage system may be integrated on the server 104, or may be located on the cloud or other network server. The electrochemical instrument 102 may collect conductivity-related data of the proton exchange membrane and send the data to the server 104; the server 104 may perform quality evaluation on the proton exchange membrane according to the conductivity-related data sent by the electrochemical instrument 102, so as to obtain an evaluation result. Electrochemical instrument 102 may be, among other things, an electrochemical instrument capable of measuring multiple electrical conductivities simultaneously. The server 104 may be implemented as a stand-alone server or a server cluster comprised of multiple servers.
In one embodiment, as shown in fig. 2, a method for evaluating the quality of a proton exchange membrane is provided, which is illustrated by applying the method to the server 104 in fig. 1, and includes the following steps:
s201, acquiring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane.
In a specific implementation, the electrochemical instrument 102 may first measure a plurality of regions on the surface of the proton exchange membrane, determine the electrical conductivities of the plurality of regions on the surface of the proton exchange membrane, and then send the determined electrical conductivities of the plurality of regions to the server. So that the server can obtain the conductivity of a plurality of areas on the surface of the proton exchange membrane.
The plurality of regions on the surface of the proton exchange membrane are regions at different positions on the surface of the proton exchange membrane, and may include a plurality of mutually independent regions, a plurality of mutually overlapped regions, and a plurality of partially overlapped regions. For example, as shown in fig. 3, the plurality of regions of the surface of the proton exchange membrane may include a region a between the lead a and the lead B, a region B between the lead C and the lead d, and a region C between the lead e and the lead f, i.e., three independent regions of the surface of the proton exchange membrane; the plurality of areas can also comprise an area B between the lead c and the lead D, an area D between the lead B and the lead E, and an area E between the lead a and the lead f, namely, three areas which are overlapped with each other on the surface of the proton exchange membrane; the plurality of regions may further include a region a between the wire a and the wire b, a region C between the wire e and the wire F, and a region F between the wire C and the wire F. This is not limited by the present application.
The electrical conductivity of the plurality of regions on the surface of the proton exchange membrane is the electrical conductivity of the plurality of regions on the surface of the proton exchange membrane at the same time.
And S202, determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the areas.
Because the uniformity of the conductivity of the surface of the proton exchange membrane affects the quality of the proton exchange membrane, the conductivity of a plurality of areas on the surface of the proton exchange membrane has larger difference, the proton conduction function of the proton exchange membrane can be seriously affected, and the quality of the proton exchange membrane is reduced. Therefore, the conductivity uniformity of the surface of the proton exchange membrane can be determined, and the quality of the proton exchange membrane can be evaluated according to the conductivity uniformity.
In a specific implementation, after acquiring the electric conductivities of the multiple regions on the surface of the proton exchange membrane, the server can determine whether the electric conductivities of the multiple regions are close to each other, and further determine whether the electric conductivities of the surface of the proton exchange membrane are uniform. For example, the variance of the conductivity of the plurality of regions may be determined, and the variance is taken as the conductivity uniformity of the surface of the proton exchange membrane; the standard deviation of the conductivity of the plurality of regions can also be determined and taken as the conductivity uniformity of the surface of the proton exchange membrane. This is not limited by the present application.
And S203, evaluating the quality of the proton exchange membrane according to the conductivity and the conductivity uniformity to obtain an evaluation result.
In specific implementation, the server may first evaluate the conductivity and the uniformity of the conductivity of the multiple regions, respectively, to determine the proton conducting capability of the proton exchange membrane and the uniformity of the conductivity of the multiple regions on the surface of the proton exchange membrane, and obtain two evaluation results. And further evaluating the quality of the proton exchange membrane according to the two evaluation results to determine a final evaluation result.
In a possible implementation manner, the server may also directly perform quality evaluation on the proton exchange membrane according to a preset evaluation standard based on the conductivities of the multiple regions on the surface of the proton exchange membrane and the uniformity of the conductivities, so as to determine an evaluation result of the proton exchange membrane.
The proton exchange membrane quality evaluation method provided by the embodiment of the application can be used for respectively measuring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane. The conductivity uniformity of the proton exchange membrane is then determined based on the difference between the conductivities of the regions. And finally, performing quality evaluation on the proton exchange membrane according to the specific sizes of the electric conductivities of the multiple regions and the uniformity of the electric conductivities to obtain an evaluation result. Therefore, the proton exchange membrane quality evaluation method can evaluate the quality of the proton exchange membrane from two aspects of conductivity and conductivity uniformity, and compared with a single conductivity evaluation mode, the proton exchange membrane quality evaluation method based on two parameters improves the accuracy of proton exchange membrane quality evaluation.
The foregoing examples describe a protocol for determining the conductivity uniformity of a proton exchange membrane. In another embodiment of the present application, conductivity uniformity may be determined based on conductivity of a plurality of regions of a proton exchange membrane. For example, the aforementioned "determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivity of the plurality of regions" may include:
and performing operation processing on the conductivity of the plurality of areas according to a preset algorithm to obtain the conductivity uniformity of the surface of the proton exchange membrane.
The preset algorithm may be a variance algorithm, a standard deviation algorithm, or other algorithms that can calculate the similarity between the conductivities of the multiple regions (i.e., the uniformity of the conductivities of the multiple regions). This is not limited by the present application.
In the specific implementation, after the server obtains the conductivities of the multiple regions on the surface of the proton exchange membrane, a preset algorithm can be called to perform operation processing on the conductivities of the multiple regions, so that an operation result, namely the conductivity uniformity of the surface of the proton exchange membrane, is obtained.
In the method provided by the embodiment of the application, the server can perform operation processing on the conductivity of the plurality of areas on the surface of the proton exchange membrane according to a preset algorithm to determine the conductivity uniformity of the surface of the proton exchange membrane. Therefore, the conductivity uniformity of the surface of the proton exchange membrane can be calculated, namely the influence of the difference between the conductivities of different areas of the surface of the proton exchange membrane on the quality of the proton exchange membrane is considered, the quality of the proton exchange membrane can be evaluated based on the conductivity uniformity, and the accuracy of the quality evaluation of the proton exchange membrane is improved.
While the embodiments described above describe a scheme for obtaining the conductivity of multiple regions of the proton exchange membrane, in another embodiment of the present application, the conductivity of each region can be determined according to the measured voltage and frequency response curves of each region. For example, the aforementioned "obtaining conductivity of multiple regions on the surface of the proton exchange membrane" may include the steps as shown in fig. 4:
s301, acquiring the measurement voltage of each area on the surface of the proton exchange membrane.
In a specific implementation, as shown in fig. 5, an electrochemical instrument may apply a test current to a proton exchange membrane through two current wires respectively disposed at two ends of the proton exchange membrane, and then obtain a voltage response of each region on the surface of the proton exchange membrane, that is, a measurement voltage of each region on the surface of the proton exchange membrane, through a plurality of voltage wires disposed on the surface of the proton exchange membrane. And sending the obtained measured voltage of each area on the surface of the proton exchange membrane to a server.
The test current (also referred to as ac disturbance signal) is a variable frequency ac current, i.e. an ac current with gradually increasing frequency. The measured voltage of each area is a voltage response curve, and each point on the curve is a voltage response value of the area under alternating current disturbance signals with different frequencies. Wherein the plurality of voltage conductors are arranged in a region between the two current conductors.
It should be noted that, because the water content of the proton exchange membrane has a great influence on the electrical conductivity of the proton exchange membrane, when the proton exchange membrane is exposed to air, the water content of the proton exchange membrane gradually increases with time and is difficult to reach saturation. So that the conductivity of the proton exchange membrane measured by the server at different moments is greatly different. Therefore, the proton exchange membrane can be placed in a preset solution, and the electrochemical instrument can acquire the measurement voltage of each area on the surface of the proton exchange membrane in the preset solution in the process of applying current.
Wherein, the predetermined solution may be water. The proton exchange membrane is placed in water, so that the proton exchange membrane can be saturated at a high speed, the conductivity measured after the proton exchange membrane is saturated can tend to be stable, the quality of the proton exchange membrane is evaluated based on the stable conductivity, and the accuracy of the obtained evaluation result is high. Moreover, the proton exchange membrane can swell in water, so that the effective contact area between the voltage lead and the proton exchange membrane is increased, the interface potential between the proton exchange membrane and the voltage lead is reduced, the influence of the interface potential on the measurement voltage is reduced, and the accuracy of the obtained measurement voltage is improved. In addition, as the proton exchange membrane gradually reaches saturation in water, the resistance of the proton exchange membrane is remarkably reduced (can be reduced from megaohm level to milliohm level or microohm level), so that the whole measuring process tends to small resistance measurement, the measuring sensitivity is increased, and the accuracy of measured voltage is improved.
S302, for each area on the surface of the proton exchange membrane, determining the conductivity according to the measured voltage and a frequency response curve acquired in advance.
In specific implementation, after the electrochemical instrument acquires the measurement voltage of each region, a bode diagram (which may be a phase-frequency characteristic curve of the proton exchange membrane) of the proton exchange membrane can be drawn according to the applied alternating-current disturbance signal and the measurement voltage of each region, so as to obtain a frequency response curve of the proton exchange membrane, and the frequency response curve is sent to the server. The server can analyze and process the measured voltage and the corresponding frequency response curve of each area, so as to calculate the conductivity of each area.
The method provided by the embodiment of the application can determine the conductivity of each area according to the measured voltage and the frequency response curve of each area on the surface of the proton exchange membrane. Therefore, the conductivity of the multiple regions on the surface of the proton exchange membrane can be determined, the influence of the difference of the conductivity of the different regions on the surface of the proton exchange membrane on the quality of the proton exchange membrane is considered, the quality of the proton exchange membrane can be evaluated based on the uniformity of the conductivity, and the accuracy of the quality evaluation of the proton exchange membrane is improved.
In the above-described embodiments, a scheme for determining the conductivity of each region of the proton exchange membrane according to the measured voltage and frequency response curves of each region is described. In another embodiment of the present application, the conductivity of each region may be determined according to a target voltage corresponding to the frequency response curve in the measured voltage of each region of the proton exchange membrane. For example, the previously mentioned "determining conductivity from measured voltage and pre-acquired frequency response curve" may comprise the steps as shown in fig. 6:
s401, determining the characteristic frequency of the proton exchange membrane according to the frequency response curve.
Wherein the characteristic frequency is the natural frequency of the proton exchange membrane.
In the specific implementation, after receiving the frequency response curves of the regions of the proton exchange membrane sent by the electrochemical instrument, the server analyzes the frequency response curves of the regions, and determines the frequency corresponding to the intersection point of the frequency response curves and the frequency axis as the characteristic frequency of the proton exchange membrane. Wherein the characteristic frequency of the proton exchange membrane is approximately in the range of 2k-4 kHz.
S402, determining the target voltage of each area according to the characteristic frequency of the proton exchange membrane and the measured voltage of each area.
In a specific implementation, after the characteristic frequency of the proton exchange membrane is determined, the server may analyze the measured voltage of each region, and determine a voltage response value corresponding to the characteristic frequency point in the voltage response curve as a target voltage of each region.
And S403, determining the conductivity of each region according to the target voltage of each region.
In a specific implementation, the server may determine the conductivity of each region according to the following equation (1):
wherein σ represents the conductivity of each region of the proton exchange membrane; d represents the distance between the two current conductors; w represents the length of the proton exchange membrane; t represents the thickness of the proton exchange membrane; r represents the electrical resistance of each region of the proton exchange membrane.
The distance between the two current leads, the length and the thickness of the proton exchange membrane are known quantities, so that the resistance of each area of the proton exchange membrane can be firstly obtained, and then the conductivity of each area of the proton exchange membrane can be obtained according to the formula (1). May include the steps shown in fig. 7:
s501, determining the resistance of each region according to the target voltage of each region and the test current applied by the electrochemical instrument; the test current is variable frequency alternating current.
And S502, determining the conductivity of each region according to the resistance of each region.
In one embodiment, since the test current applied by the electrochemical instrument is an ac current, the target voltage of each region is also an ac voltage (i.e., the test current and the target voltage are both in a complex form). Therefore, before calculating the resistance of each area of the proton exchange membrane, the server may first take the real part of the test current and the real part of the target voltage of each area, and then determine the quotient of the real part of the target voltage of each area and the real part of the test current as the resistance of each area. Finally, the server can calculate the conductivity of each region of the proton exchange membrane according to the above formula (1) based on the resistance of each region.
The method provided by the embodiment of the application can determine the target voltage of each area according to the characteristic frequency of the proton exchange membrane, and then determine the conductivity of each area according to the target voltage and the test current of each area. Therefore, the conductivity of the multiple regions on the surface of the proton exchange membrane can be determined, the influence of the difference between the conductivities of the different regions on the surface of the proton exchange membrane on the quality of the proton exchange membrane is considered, the quality of the proton exchange membrane can be evaluated based on the uniformity of the conductivity, and the accuracy of the quality evaluation of the proton exchange membrane is improved.
The above-described examples describe a protocol for determining proton exchange membrane quality assessment based on conductivity and conductivity uniformity. In another embodiment of the present application, the quality evaluation result of the proton exchange membrane may be determined according to the evaluation result of the conductivity of the proton exchange membrane and the evaluation result of the uniformity of the conductivity of the proton exchange membrane. For example, the above-mentioned "evaluating the quality of the proton exchange membrane according to the conductivity and the uniformity of the conductivity to obtain the evaluation result" may include the steps as shown in fig. 8:
s601, determining the conduction evaluation result of the proton exchange membrane according to the conductivity of each area of the proton exchange membrane and a preset threshold value.
In a specific implementation, after the server calculates and obtains the conductivity of each region of the proton exchange membrane, the server may analyze and evaluate the conductivity of each region, and determine the conductivity evaluation result of the proton exchange membrane according to the specific size of the conductivity of each region. For example, the server may first compare the conductivity of each region to a preset threshold, and determine the number of regions with a conductivity greater than the preset threshold. If the number of the areas with the electric conductivity larger than the preset threshold value is larger than or equal to the preset number, determining that the electric conductivity evaluation result of the proton exchange membrane is excellent; and if the number of the areas with the conductivity larger than the preset threshold value is lower than the preset number, determining that the conductivity evaluation result of the proton exchange membrane is poor.
In a possible implementation manner, a plurality of quantity thresholds can be set, and the conductivity evaluation result of the proton exchange membrane is divided into a plurality of grades. For example, two number thresholds, a first preset number and a second preset number, are set. Wherein the first predetermined number is greater than the second predetermined number. If the number of the areas with the conductivity larger than the preset threshold value is larger than or equal to the first preset number, determining that the conductivity evaluation result of the proton exchange membrane is excellent; if the number of the areas with the conductivity larger than the preset threshold value is lower than the first preset number and is higher than or equal to the second preset number, determining that the conductivity evaluation result of the proton exchange membrane is good; and if the number of the areas with the conductivity larger than the preset threshold value is lower than a second preset number, determining that the conductivity evaluation result of the proton exchange membrane is poor.
S602, determining the uniformity evaluation result of the proton exchange membrane according to the conductivity uniformity of the surface of the proton exchange membrane.
In specific implementation, after the server calculates the conductivity uniformity of the proton exchange membrane, the server may analyze and evaluate the conductivity uniformity of each region, and determine the uniformity evaluation result of the proton exchange membrane according to the specific size of the conductivity uniformity of each region. For example, the server may compare the conductivity uniformity with a preset uniformity threshold, and if the conductivity uniformity is smaller than the preset uniformity threshold, determine that the uniformity evaluation result of the proton exchange membrane is excellent; and if the uniformity of the conductivity is larger than the preset uniformity threshold value, determining that the uniformity evaluation result of the proton exchange membrane is poor.
In a possible implementation manner, a plurality of uniformity thresholds can be set, and the uniformity evaluation result of the proton exchange membrane is divided into a plurality of grades. For example, two uniformity thresholds are set, a first predetermined uniformity and a second predetermined uniformity. Wherein the first predetermined uniformity is less than the second predetermined uniformity. If the uniformity of the conductivity is less than or equal to a first preset uniformity, determining that the uniformity evaluation result of the proton exchange membrane is excellent; if the conductivity uniformity is greater than a first preset uniformity and less than or equal to a second preset uniformity, determining that the uniformity evaluation result of the proton exchange membrane is good; and if the conductivity uniformity is larger than the second preset uniformity, determining that the uniformity evaluation result of the proton exchange membrane is poor.
And S603, determining the evaluation result of the proton exchange membrane according to the electric conduction evaluation result and the uniformity evaluation result.
In the specific implementation, after determining the conductivity evaluation result and the uniformity evaluation result of the proton exchange membrane, the server analyzes the two evaluation results respectively, and determines the evaluation result of the proton exchange membrane according to a preset standard. For example, if the conductivity evaluation result and the uniformity evaluation result of the proton exchange membrane are both excellent, the evaluation result of the proton exchange membrane is determined to be excellent; if one evaluation result of the conductivity evaluation result and the uniformity evaluation result of the proton exchange membrane is excellent, determining that the evaluation result of the proton exchange membrane is good; and if the conductivity evaluation result and the uniformity evaluation result of the proton exchange membrane are both poor, determining that the evaluation result of the proton exchange membrane is poor.
The method provided by the embodiment of the application can be used for respectively evaluating the conductivity uniformity of the proton exchange membrane and the conductivity of each area to obtain a uniformity evaluation result and a conductivity evaluation result, and then determining the evaluation result of the proton exchange membrane according to the uniformity evaluation result and the conductivity evaluation result. Therefore, the proton exchange membrane quality evaluation method can evaluate the quality of the proton exchange membrane from two aspects of conductivity and conductivity uniformity, and compared with a single conductivity evaluation mode, the proton exchange membrane quality evaluation method based on two parameters improves the accuracy of proton exchange membrane quality evaluation.
It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a part of the steps or stages in other steps.
Based on the same inventive concept, the embodiment of the present application further provides a proton exchange membrane quality evaluation apparatus for implementing the proton exchange membrane quality evaluation method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so specific limitations in one or more embodiments of the proton exchange membrane quality assessment device provided below can be referred to the limitations of the proton exchange membrane quality assessment method in the above, and details are not repeated herein.
In one embodiment, as shown in fig. 9, there is provided a proton exchange membrane quality evaluation apparatus including: the device comprises an acquisition module, a determination module and an evaluation module, wherein:
an obtaining module 701, configured to obtain conductivity of multiple regions on a surface of a proton exchange membrane;
a determining module 702, configured to determine conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the multiple regions;
the evaluation module 703 is configured to perform quality evaluation on the proton exchange membrane according to the conductivity and the conductivity uniformity to obtain an evaluation result.
In an embodiment, the determining module 702 is specifically configured to perform an operation on the conductivity of the multiple regions according to a preset algorithm to obtain the conductivity uniformity of the surface of the proton exchange membrane.
In one embodiment, the obtaining module 701 is specifically configured to obtain measurement voltages of regions on the surface of the proton exchange membrane; and determining the conductivity of each area on the surface of the proton exchange membrane according to the measured voltage and a pre-acquired frequency response curve.
In an embodiment, the obtaining module 701 is further configured to determine a characteristic frequency of the proton exchange membrane according to the frequency response curve; determining the target voltage of each region according to the characteristic frequency of the proton exchange membrane and the measured voltage of each region; the conductivity of each region is determined based on the target voltage for each region.
In one embodiment, the obtaining module 701 is further configured to determine the resistance of each region according to the target voltage of each region and the test current applied by the electrochemical instrument; the test current is variable frequency alternating current; the conductivity of each region is determined based on the resistance of each region.
In an embodiment, the obtaining module 701 is further configured to determine a frequency corresponding to an intersection of the frequency response curve and the frequency axis as a characteristic frequency of the proton exchange membrane.
In one embodiment, the obtaining module 701 is further configured to obtain a measurement voltage of each region on the surface of the proton exchange membrane in a predetermined solution during the current application of the electrochemical instrument.
In one embodiment, the evaluation module 703 is specifically configured to determine a conduction evaluation result of the proton exchange membrane according to the conductivity of each region of the proton exchange membrane and a preset threshold; determining the uniformity evaluation result of the proton exchange membrane according to the conductivity uniformity of the surface of the proton exchange membrane; and determining the evaluation result of the proton exchange membrane according to the electric conduction evaluation result and the uniformity evaluation result.
All or part of each module in the proton exchange membrane quality evaluation device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 10. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used for storing some data related to the proton exchange membrane quality evaluation method of the embodiment of the present application, for example, the conductivity, conductivity uniformity, evaluation result, and the like of the proton exchange membrane in the plurality of regions as described above. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a proton exchange membrane quality assessment method.
Those skilled in the art will appreciate that the architecture shown in fig. 10 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
acquiring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane;
determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the areas;
and evaluating the quality of the proton exchange membrane according to the conductivity and the uniformity of the conductivity to obtain an evaluation result.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and performing operation processing on the conductivity of the plurality of areas according to a preset algorithm to obtain the conductivity uniformity of the surface of the proton exchange membrane.
In one embodiment, the processor, when executing the computer program, further performs the steps of: acquiring the measurement voltage of each area on the surface of the proton exchange membrane; and determining the conductivity of each area on the surface of the proton exchange membrane according to the measured voltage and a pre-acquired frequency response curve.
In one embodiment, the processor, when executing the computer program, further performs the steps of: determining the characteristic frequency of the proton exchange membrane according to the frequency response curve; determining the target voltage of each region according to the characteristic frequency of the proton exchange membrane and the measured voltage of each region; the conductivity of each region is determined based on the target voltage for each region.
In one embodiment, the processor, when executing the computer program, further performs the steps of: determining the resistance of each region according to the target voltage of each region and the test current applied by the electrochemical instrument; the test current is variable frequency alternating current; the conductivity of each region is determined based on the resistance of each region.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and determining the frequency corresponding to the intersection point of the frequency response curve and the frequency axis as the characteristic frequency of the proton exchange membrane.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and acquiring the measurement voltage of each area on the surface of the proton exchange membrane in a preset solution in the process of applying current by the electrochemical instrument.
In one embodiment, the processor, when executing the computer program, further performs the steps of: determining the conduction evaluation result of the proton exchange membrane according to the conductivity of each area of the proton exchange membrane and a preset threshold value; determining the uniformity evaluation result of the proton exchange membrane according to the conductivity uniformity of the surface of the proton exchange membrane; and determining the evaluation result of the proton exchange membrane according to the electric conduction evaluation result and the uniformity evaluation result.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, performs the steps of:
acquiring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane;
determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the areas;
and evaluating the quality of the proton exchange membrane according to the conductivity and the uniformity of the conductivity to obtain an evaluation result.
In one embodiment, the computer program when executed by the processor further performs the steps of: and performing operation processing on the electric conductivities of the multiple regions according to a preset algorithm to obtain the electric conductivity uniformity of the surface of the proton exchange membrane.
In one embodiment, the computer program when executed by the processor further performs the steps of: acquiring the measurement voltage of each area on the surface of the proton exchange membrane; and determining the conductivity of each area on the surface of the proton exchange membrane according to the measured voltage and a pre-acquired frequency response curve.
In one embodiment, the computer program when executed by the processor further performs the steps of: determining the characteristic frequency of the proton exchange membrane according to the frequency response curve; determining the target voltage of each region according to the characteristic frequency of the proton exchange membrane and the measured voltage of each region; the conductivity of each region is determined based on the target voltage for each region.
In one embodiment, the computer program when executed by the processor further performs the steps of: determining the resistance of each region according to the target voltage of each region and the test current applied by the electrochemical instrument; the test current is variable frequency alternating current; the conductivity of each region is determined from the resistance of each region.
In one embodiment, the computer program when executed by the processor further performs the steps of: and determining the frequency corresponding to the intersection point of the frequency response curve and the frequency axis as the characteristic frequency of the proton exchange membrane.
In one embodiment, the computer program when executed by the processor further performs the steps of: and acquiring the measurement voltage of each area on the surface of the proton exchange membrane in a preset solution in the process of applying current by the electrochemical instrument.
In one embodiment, the computer program when executed by the processor further performs the steps of: determining the conduction evaluation result of the proton exchange membrane according to the conductivity of each area of the proton exchange membrane and a preset threshold value; determining the uniformity evaluation result of the proton exchange membrane according to the conductivity uniformity of the surface of the proton exchange membrane; and determining the evaluation result of the proton exchange membrane according to the electric conduction evaluation result and the uniformity evaluation result.
In one embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, performs the steps of:
acquiring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane;
determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the areas;
and evaluating the quality of the proton exchange membrane according to the conductivity and the uniformity of the conductivity to obtain an evaluation result.
In one embodiment, the computer program when executed by the processor further performs the steps of: and performing operation processing on the conductivity of the plurality of areas according to a preset algorithm to obtain the conductivity uniformity of the surface of the proton exchange membrane.
In one embodiment, the computer program when executed by the processor further performs the steps of: acquiring the measurement voltage of each area on the surface of the proton exchange membrane; and determining the conductivity of each area on the surface of the proton exchange membrane according to the measured voltage and a pre-acquired frequency response curve.
In one embodiment, the computer program when executed by the processor further performs the steps of: determining the characteristic frequency of the proton exchange membrane according to the frequency response curve; determining the target voltage of each area according to the characteristic frequency of the proton exchange membrane and the measured voltage of each area; the conductivity of each region is determined based on the target voltage for each region.
In one embodiment, the computer program when executed by the processor further performs the steps of: determining the resistance of each region according to the target voltage of each region and the test current applied by the electrochemical instrument; the test current is variable frequency alternating current; the conductivity of each region is determined based on the resistance of each region.
In one embodiment, the computer program when executed by the processor further performs the steps of: and determining the frequency corresponding to the intersection point of the frequency response curve and the frequency axis as the characteristic frequency of the proton exchange membrane.
In one embodiment, the computer program when executed by the processor further performs the steps of: and acquiring the measurement voltage of each area on the surface of the proton exchange membrane in a preset solution in the process of applying current by the electrochemical instrument.
In one embodiment, the computer program when executed by the processor further performs the steps of: determining the conduction evaluation result of the proton exchange membrane according to the conductivity of each area of the proton exchange membrane and a preset threshold value; determining the uniformity evaluation result of the proton exchange membrane according to the conductivity uniformity of the surface of the proton exchange membrane; and determining the evaluation result of the proton exchange membrane according to the electric conduction evaluation result and the uniformity evaluation result.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by hardware instructions of a computer program, which may be stored in a non-volatile computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), Magnetic Random Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), for example. The databases referred to in various embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing based data processing logic devices, etc., without limitation.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (12)
1. A method for evaluating the quality of a proton exchange membrane, the method comprising:
acquiring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane;
determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the regions;
and evaluating the quality of the proton exchange membrane according to the conductivity and the conductivity uniformity to obtain an evaluation result.
2. The method of claim 1, wherein said determining conductivity uniformity of said proton exchange membrane surface based on said conductivity of said plurality of regions comprises:
and performing operation processing on the conductivity of the plurality of areas according to a preset algorithm to obtain the conductivity uniformity of the surface of the proton exchange membrane.
3. The method of claim 1 or 2, wherein the obtaining the electrical conductivity of the plurality of regions of the surface of the proton exchange membrane comprises:
acquiring the measurement voltage of each area on the surface of the proton exchange membrane;
and determining the conductivity of each area of the surface of the proton exchange membrane according to the measuring voltage and a pre-acquired frequency response curve.
4. The method of claim 3, wherein said determining said conductivity from said measured voltage and a pre-acquired frequency response curve comprises:
determining the characteristic frequency of the proton exchange membrane according to the frequency response curve;
determining the target voltage of each region according to the characteristic frequency of the proton exchange membrane and the measured voltage of each region;
determining the conductivity of each of the regions based on the target voltage for each of the regions.
5. The method of claim 4, wherein determining the conductivity of each of the regions based on the target voltage for each of the regions comprises:
determining the resistance of each region according to the target voltage of each region and the test current applied by the electrochemical instrument; the test current is variable frequency alternating current;
the conductivity of each of the regions is determined based on the resistance of each of the regions.
6. The method of claim 4, wherein said determining a characteristic frequency of said proton exchange membrane from said frequency response curve comprises:
and determining the frequency corresponding to the intersection point of the frequency response curve and the frequency axis as the characteristic frequency of the proton exchange membrane.
7. The method of claim 3, wherein the obtaining the measured voltage of each region of the surface of the proton exchange membrane comprises:
and acquiring the measurement voltage of each area on the surface of the proton exchange membrane in a preset solution in the process of applying current by the electrochemical instrument.
8. The method of claim 1, wherein the evaluating the quality of the proton exchange membrane according to the conductivity and the conductivity uniformity comprises:
determining a conduction evaluation result of the proton exchange membrane according to the conductivity of each area of the proton exchange membrane and a preset threshold value;
determining the uniformity evaluation result of the proton exchange membrane according to the conductivity uniformity of the surface of the proton exchange membrane;
and determining the evaluation result of the proton exchange membrane according to the electric conduction evaluation result and the uniformity evaluation result.
9. A proton exchange membrane quality assessment apparatus, comprising:
the acquisition module is used for acquiring the electric conductivity of a plurality of areas on the surface of the proton exchange membrane;
the determining module is used for determining the conductivity uniformity of the surface of the proton exchange membrane according to the conductivities of the multiple regions;
and the evaluation module is used for evaluating the quality of the proton exchange membrane according to the conductivity and the conductivity uniformity to obtain an evaluation result.
10. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 8.
11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 8.
12. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 8.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004003872A (en) * | 2002-03-26 | 2004-01-08 | National Institute Of Advanced Industrial & Technology | Evaluating method of thermoelectric transducing material |
| FR2850758A1 (en) * | 2003-05-20 | 2004-08-06 | Commissariat Energie Atomique | Electrical performance evaluating system for electrode-membrane-electrode assembly in fuel cell has device for placing the assembly in determined state of stress and device for measuring the electrical resistance of the assembly |
| CN101603987A (en) * | 2009-07-31 | 2009-12-16 | 新奥科技发展有限公司 | The proving installation of high-temperature conductivity of proton exchange membrane and method |
| KR20100133698A (en) * | 2009-06-12 | 2010-12-22 | 현대자동차주식회사 | Method for testing electrolyte membrane endurance of fuel cell |
| DE102019129434A1 (en) * | 2019-10-31 | 2021-05-06 | AVX/KUMATEC Hydrogen GmbH & Co. KG | Measuring device for measuring the conductivity of media in a high pressure environment and arrangement with a measuring device |
| CN113687144A (en) * | 2021-07-30 | 2021-11-23 | 蜂巢能源科技有限公司 | Testing device and testing method for diaphragm ionic conductivity |
-
2022
- 2022-06-29 CN CN202210746689.7A patent/CN114994135A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004003872A (en) * | 2002-03-26 | 2004-01-08 | National Institute Of Advanced Industrial & Technology | Evaluating method of thermoelectric transducing material |
| FR2850758A1 (en) * | 2003-05-20 | 2004-08-06 | Commissariat Energie Atomique | Electrical performance evaluating system for electrode-membrane-electrode assembly in fuel cell has device for placing the assembly in determined state of stress and device for measuring the electrical resistance of the assembly |
| KR20100133698A (en) * | 2009-06-12 | 2010-12-22 | 현대자동차주식회사 | Method for testing electrolyte membrane endurance of fuel cell |
| CN101603987A (en) * | 2009-07-31 | 2009-12-16 | 新奥科技发展有限公司 | The proving installation of high-temperature conductivity of proton exchange membrane and method |
| DE102019129434A1 (en) * | 2019-10-31 | 2021-05-06 | AVX/KUMATEC Hydrogen GmbH & Co. KG | Measuring device for measuring the conductivity of media in a high pressure environment and arrangement with a measuring device |
| CN113687144A (en) * | 2021-07-30 | 2021-11-23 | 蜂巢能源科技有限公司 | Testing device and testing method for diaphragm ionic conductivity |
Non-Patent Citations (1)
| Title |
|---|
| 蔡光旭;郭建伟;王佳;: "交流阻抗技术在质子交换膜燃料电池上的研究进展", 化工进展, no. 01, 5 January 2014 (2014-01-05), pages 56 - 63 * |
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