A method for rapid activation of fuel cell

Abstract

The present invention discloses a method for rapid activation of a fuel cell, which relates to the field of fuel cell technology. The activation method includes preliminary preparation, electrode pretreatment, injection of an activation reagent, activation treatment, post-treatment, and evaluation and optimization steps. The advantages of the present invention are: an electrochemical impedance spectrometer is used in the electrode pretreatment stage to check the status of electrodes and other components, thereby ensuring the reliability of the fuel cell to be tested; a cleaning agent and an ultrasonic cleaning machine are used to deeply clean the electrode surface, which can effectively remove dust, oil stains and impurities on the electrode surface; at the same time, plasma technology is used to improve the microstructure and chemical composition of the electrode surface, thereby improving the catalytic activity and corrosion resistance of the electrode, thereby improving the activation efficiency and operating stability of the fuel cell; and through real-time performance evaluation, potential abnormalities can be discovered and handled in a timely manner, ensuring that the fuel cell operates in an optimal state.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cells, in particular to a method for rapidly activating a fuel cell. Background Art

[0002] As an efficient and environmentally friendly energy conversion device, fuel cells have received extensive attention and application in various fields such as energy, transportation, and electricity in recent years. However, the performance and stability of fuel cells are affected by many factors, among which the state and activation effect of the electrodes are one of the key factors.

[0003] Traditional fuel cell activation processes often lack a systematic pretreatment step, resulting in the presence of dust, oil, and impurities on the electrode surface. These contaminants can hinder the electrochemical reaction, reduce the catalytic activity and corrosion resistance of the electrode, and thus affect the activation efficiency and operational stability of the fuel cell. To this end, we propose a method for rapid fuel cell activation. Summary of the Invention

[0004] The object of the present invention is to provide a method for rapid activation of a fuel cell.

[0005] To solve the problems raised in the above background technology, the present invention provides the following technical solutions: a method for rapid activation of a fuel cell, comprising the following steps:

[0006] Step 1: Preliminary preparation: test the working status of the fuel cell and its components, and prepare the reagents and equipment required for activation;

[0007] Step 2: Electrode pretreatment: Clean the fuel cell electrodes, electrolyte layer, and seals. Soak the electrodes in a solution with a certain pH value, depending on the electrode material.

[0008] Step 3: Injecting the activation reagent into the electrolyte layer of the fuel cell using a liquid injection device, and monitoring the fuel cell pressure, temperature, and liquid level during the injection process;

[0009] Step 4: Activation treatment: connect the fuel cell injected with the activation reagent to the activation device and set various parameters of the activation device;

[0010] Step 5: Post-processing: After activation is completed, the fuel cell is disassembled from the activation equipment, the remaining activation reagent is discharged, the residual activation reagent and impurities are removed, and the electrodes are inspected. If there is no abnormality, the fuel cell is reassembled;

[0011] Step 6: Evaluation and optimization: Conduct comprehensive performance tests on the activated fuel cell, compare the test results with the performance before activation, evaluate the activation effect, and adjust the parameters during the activation process based on the evaluation results. Establish a fuel cell activation database to record the process and results of each activation.

[0012] As a further solution of the present invention: in step 1, the specific method of preliminary preparation is to use an electrochemical impedance spectrometer to inspect the electrodes, electrolyte layer, seals and connecting components of the fuel cell.

[0013] As a further solution of the present invention: In the step 2, the electrode pretreatment method is to use a fuel cell-specific cleaning agent and an ultrasonic cleaning machine to remove dust, oil and other impurities attached to the surface of the fuel cell electrode, electrolyte layer and seal, prepare dilute sulfuric acid with a pH value of 3 and a sodium hydroxide solution with a pH value of 12, adjust the pH value of the solution to the required range according to the type of fuel cell, and the required range is set according to the historical commonly used pH value of this type of fuel cell, immerse the cleaned electrode in the adjusted pH solution for 1 hour, observe the solution state and electrode surface changes every 10 minutes, and after the immersion is completed, remove the electrode from the solution, rinse it with deionized water to remove residual solution components, and use a paper towel to absorb the moisture on the electrode surface.

[0014] As a further solution of the present invention: during the electrode pretreatment process, plasma treatment technology is used to modify the surface of the fuel cell electrode, nitrogen is used as the plasma gas, the gas flow rate is 10sccm-100sccm, and the treatment temperature is 100℃-200℃.

[0015] As a further solution of the present invention: in step three, the activation reagent is hydrogen, and the specific method of injecting the activation reagent is to inject hydrogen into the electrolyte layer of the fuel cell through the gas pipeline of the hydrogen tank. A sensor is provided at the inlet position of the hydrogen injection into the fuel cell, which can monitor the flow rate, pressure and temperature of the hydrogen in real time. The normal value is that the flow rate of hydrogen is between 0Kg / H-12Kg / H, the normal value is that the pressure of hydrogen is between 4bar-15bar, and the normal value is that the temperature of hydrogen is between 40℃-60℃. During the injection process of the activation reagent, the fuel cell pressure, temperature, liquid level, and the injection amount and time of the activation reagent are recorded.

[0016] As a further solution of the present invention: in the step 4, the specific method of the activation treatment is to connect the fuel cell that has been injected with hydrogen to the activation equipment; for small fuel cells, the current value is set to 50mA-300mA, the starting voltage is 0.6V, it is increased by 0.05V every 30 minutes, and the maximum voltage is less than 0.85V, the temperature range is 50℃-70℃, and the activation time is 2h-8h; for large fuel cells, the current value is set to 500mA-5A, the starting voltage is 0.4V, it is increased by 0.1V every 45 minutes, and the maximum voltage is less than 0.75V, the temperature range is 70℃-90℃, and the activation time is 12h-20h. During the activation process, the output power, voltage stability and current density of the fuel cell are continuously monitored. When abnormal fluctuations in performance indicators are found, the activation is immediately stopped and troubleshooting is carried out.

[0017] As a further solution of the present invention: In step five, the specific method of post-processing is to disconnect all power connections, remove the fuel cell from the activation device, use a hydrogen emission control device to discharge the remaining hydrogen in the fuel cell, use a high-pressure nitrogen purge device to remove residual hydrogen and impurities, and use an aqueous detergent to clean the inside of the fuel cell. After cleaning, rinse with deionized water 3-5 times, and seal the exhaust port with a sealant gun.

[0018] As a further solution of the present invention: in step six, the specific method of performance testing is to use a motor dynamic power tester to test the power of the fuel cell, a voltage monitor calibrator to test the voltage stability of the fuel cell, a current density ruler to test the current density of the fuel cell, and an energy analyzer to test the energy conversion efficiency of the fuel cell. The specific method of adjusting the parameters in the activation process according to the evaluation results is: if the output power is low, adjust the current and voltage parameters of the activation equipment; if the voltage stability is low, adjust the temperature during the activation process; if the current density is low, increase the current size and the amount of activator injection; if the energy conversion efficiency is low, adjust the current and voltage parameters of the activation equipment; the method of establishing the fuel cell activation database is to use the MySQL database management system to store the parameter data in the entire test step.

[0019] As a further solution of the present invention: in step 6, the activation effect is evaluated by calculating the activation effect using a formula, which is as follows:

[0020] F=ω1A+ω2B+ω3C+ω4D

[0021] Among them, F represents the score of the activation effect, ω1, ω2, ω3 and ω4 represent the weights of the four factors of power, voltage stability, current density and energy conversion efficiency, respectively, ω1:ω2:ω3:ω4=3:3:2:2, A, B, C and D represent the degree of power improvement, the degree of improvement in voltage stability, the degree of change in current density and the degree of change in energy conversion efficiency, respectively. The larger the value of F, the better the activation effect.

[0022] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This invention uses an electrochemical impedance spectrometer to inspect the status of electrodes and other components during the electrode pretreatment phase to ensure the reliability of the fuel cell being tested. Detergents and ultrasonic cleaning machines are used to deeply clean the electrode surface, effectively removing dust, oil, and impurities. Plasma technology is also used to improve the microstructure and chemical composition of the electrode surface, enhancing the electrode's catalytic activity and corrosion resistance, thereby improving the activation efficiency and operational stability of the fuel cell.

[0024] 2. This invention uses sensors to monitor multiple parameters of the fuel cell, such as pressure, temperature, and hydrogen flow rate, in real time during the injection of activation reagents and the activation process. It also dynamically adjusts the current and voltage of the activation equipment and conducts real-time performance evaluation. This allows for the timely detection and resolution of potential anomalies, ensuring optimal fuel cell operation and reducing the risk of failure.

[0025] 3. The present invention uses evaluation indicators in four dimensions, namely power, voltage stability, current density and energy conversion efficiency, to quantitatively analyze the activation effect in the performance test after activation, and constructs a dedicated database to record the data of each activation. This can accurately reflect the activation effect of the fuel cell and provide a scientific basis for subsequent parameter adjustment and optimization. By continuously optimizing the parameters, the activation efficiency of the fuel cell can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the activation method steps in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings shown in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1:

[0029] The present invention provides a method for rapid activation of a fuel cell, comprising the following steps:

[0030] Step 1: Preliminary preparation: test the working status of the fuel cell and its components, and prepare the reagents and equipment required for activation;

[0031] Step 2: Electrode pretreatment: Clean the fuel cell electrodes, electrolyte layer, and seals. Soak the electrodes in a solution with a certain pH value, depending on the electrode material.

[0032] Step 3: Injecting the activation reagent into the electrolyte layer of the fuel cell using a liquid injection device, and monitoring the fuel cell pressure, temperature, and liquid level during the injection process;

[0033] Step 4: Activation treatment: connect the fuel cell injected with the activation reagent to the activation device and set various parameters of the activation device;

[0034] Step 5: Post-processing: After activation is completed, the fuel cell is disassembled from the activation equipment, the remaining activation reagent is discharged, the residual activation reagent and impurities are removed, and the electrodes are inspected. If there is no abnormality, the fuel cell is reassembled;

[0035] Step 6: Evaluation and Optimization: Conduct comprehensive performance tests on the activated fuel cell, compare the test results with the performance before activation, evaluate the activation effect, and adjust the parameters during the activation process based on the evaluation results. Establish a fuel cell activation database to record the process and results of each activation.

[0036] In step 1, the specific method of preliminary preparation is to use an electrochemical impedance spectroscopy to inspect the electrodes, electrolyte layer, seals and connecting parts of the fuel cell;

[0037] In step 2, the electrode pretreatment method is to use a fuel cell-specific cleaning agent and an ultrasonic cleaning machine to remove dust, oil and other impurities attached to the surface of the fuel cell electrode, electrolyte layer and seal, prepare dilute sulfuric acid with a pH value of 3 and a sodium hydroxide solution with a pH value of 12, adjust the pH value of the solution to the required range according to the type of fuel cell, and the required range is set according to the historical commonly used pH value of this type of fuel cell. The cleaned electrode is immersed in the adjusted pH solution for 1 hour, and the solution state and electrode surface changes are observed every 10 minutes. After the soaking is completed, the electrode is removed from the solution, rinsed with deionized water to remove residual solution components, and the moisture on the electrode surface is absorbed with a paper towel;

[0038] During the electrode pretreatment process, plasma treatment technology is used to modify the surface of the fuel cell electrode. Nitrogen is used as the plasma gas, the gas flow rate is 10sccm-100sccm, and the treatment temperature is 100℃-200℃.

[0039] Specific workflow: A new energy vehicle manufacturer adopted the fuel cell rapid activation method of the present invention. During the electrode pretreatment stage, an electrochemical impedance spectrometer was used to inspect the fuel cell's electrodes, electrolyte layer, seals, and connecting components. Some potential poor connection problems were discovered and repaired in a timely manner. Then, a fuel cell-specific cleaning agent and an ultrasonic cleaning machine were used to clean the electrode surface to remove oil and impurities on the electrode surface. Subsequently, plasma treatment technology was used to modify the electrode surface. Nitrogen was used as the plasma gas, the gas flow rate was set to 50 sccm, and the treatment temperature was 150°C. After treatment, the surface roughness of the electrode was significantly reduced, and the catalytic activity was increased by about 20%.

[0040] During the activation reagent injection process, hydrogen is injected into the electrolyte layer of the fuel cell through the gas pipeline of the hydrogen tank. Sensors at the inlet position monitor the hydrogen flow, pressure, and temperature in real time. The hydrogen flow rate is stable at 5 kg / H, the pressure is maintained at 8 bar, and the temperature is controlled at 50°C. During the activation treatment stage, according to the specifications of the fuel cell (which is a small fuel cell), the current value is set to 300mA, the starting voltage is 0.5V, and it is increased by 0.08V every 40 minutes, with a maximum voltage not exceeding 0.8V. The temperature range is 60°C-80°C, and the activation time is 10 hours. During the activation process, the output power, voltage stability, and current density of the fuel cell are continuously monitored. By adjusting the parameters in real time, the fuel cell is ensured to operate in the optimal state. After activation, performance testing is carried out. The output power measured by the motor dynamic power tester is increased by 30%, the voltage stability is improved by 25%, the current density measured by the current density ruler is increased by 20%, and the energy conversion efficiency is increased by 15% by the energy analyzer. Through this activation, the cruising range of the company's new energy vehicles has been significantly improved, and the reliability and stability of the vehicles have also been improved.

[0041] Furthermore, during the electrode pretreatment stage, an electrochemical impedance spectrometer is used to check the status of the electrodes and other components to ensure the reliability of the fuel cell to be tested. The electrode surface is deeply cleaned using detergents and ultrasonic cleaning machines to effectively remove dust, oil stains and impurities on the electrode surface. At the same time, plasma technology is used to improve the microstructure and chemical composition of the electrode surface, thereby improving the catalytic activity and corrosion resistance of the electrode, thereby improving the activation efficiency and operating stability of the fuel cell.

[0042] Example 2:

[0043] Based on Example 1, in step 3, the activation reagent is hydrogen. The specific method of injecting the activation reagent is to inject the hydrogen into the electrolyte layer of the fuel cell through the gas pipeline of the hydrogen tank. A sensor is provided at the inlet position of the hydrogen injection fuel cell to monitor the flow rate, pressure and temperature of the hydrogen in real time. The hydrogen flow rate is between 0 kg / h and 12 kg / h as a normal value, the hydrogen pressure is between 4 bar and 15 bar as a normal value, and the hydrogen temperature is between 40°C and 60°C as a normal value. During the injection of the activation reagent, the fuel cell pressure, temperature, liquid level, and the injection amount and time of the activation reagent are recorded;

[0044] In step 4, the specific method of the activation treatment is to connect the fuel cell that has been injected with hydrogen to the activation equipment. For small fuel cells, the current value is set to 50mA-300mA, the starting voltage is 0.6V, and it is increased by 0.05V every 30 minutes, and the maximum voltage is less than 0.85V. The temperature range is 50℃-70℃, and the activation time is 2h-8h. For large fuel cells, the current value is set to 500mA-5A, the starting voltage is 0.4V, and it is increased by 0.1V every 45 minutes, and the maximum voltage is less than 0.75V. The temperature range is 70℃-90℃, and the activation time is 12h-20h. During the activation process, the output power, voltage stability and current density of the fuel cell are continuously monitored. If abnormal fluctuations in performance indicators are found, the activation is immediately stopped and troubleshooting is carried out;

[0045] In step five, the specific method of post-processing is to disconnect all power connections, remove the fuel cell from the activation equipment, use the hydrogen emission control device to discharge the remaining hydrogen in the fuel cell, use a high-pressure nitrogen purge device to remove residual hydrogen and impurities, and use an aqueous detergent to clean the inside of the fuel cell. After cleaning, rinse with deionized water 3-5 times and seal the exhaust port with a sealant gun.

[0046] Specific workflow: In a laboratory, a small proton exchange membrane fuel cell was activated. First, in the preliminary preparation stage, the fuel cell was fully inspected using an electrochemical impedance spectroscopy to determine the initial state of the battery. In the electrode pretreatment stage, the electrode was immersed in a dilute sulfuric acid solution with a pH value of 3 for 1 hour. The solution state and changes in the electrode surface were observed every 10 minutes. After the soaking, it was rinsed with deionized water and the moisture was absorbed. Then, plasma treatment was performed using nitrogen plasma with a gas flow rate of 30sccm and a treatment temperature of 120°C.

[0047] During the activation reagent injection stage, the hydrogen flow, pressure and temperature are strictly controlled to maintain them at 2Kg / H, 6bar and 45℃ respectively. During the activation treatment stage, the current value is set to 100mA, the starting voltage is 0.6V, and it is increased by 0.05V every 30 minutes. The temperature range is 55℃ and the activation time is 5 hours. During the activation process, performance indicators are monitored in real time, and troubleshooting is carried out in time when abnormal fluctuations are found. After the activation is completed, performance tests are carried out. The results show that the output power is increased by 25%, the voltage stability is improved by 20%, the current density is increased by 15%, and the energy conversion efficiency is increased by 10%.

[0048] Furthermore, by setting sensors to monitor multiple parameters of the fuel cell in real time during the injection of activation reagents and activation treatment, such as pressure, temperature, hydrogen flow, etc., dynamically adjusting the current and voltage of the activation equipment, and performing real-time performance evaluation, potential anomalies can be discovered and handled in a timely manner, ensuring that the fuel cell operates in the best condition and reducing the risk of failure.

[0049] Example 3:

[0050] Based on the second embodiment, in step six, the specific method of the performance test is to use a motor dynamic power tester to test the power of the fuel cell, a voltage monitor calibrator to test the voltage stability of the fuel cell, a current density ruler to test the current density of the fuel cell, and an energy analyzer to test the energy conversion efficiency of the fuel cell. The specific method of adjusting the parameters in the activation process according to the evaluation results is as follows: if the output power is low, adjust the current and voltage parameters of the activation device; if the voltage stability is low, adjust the temperature during the activation process; if the current density is low, increase the current and the amount of activator injection; if the energy conversion efficiency is low, adjust the current and voltage parameters of the activation device; the fuel cell activation database is established by using the MySQL database management system to store the parameter data in the entire test step;

[0051] In step 6, the activation effect is evaluated by using a formula to calculate the activation effect. The specific formula is as follows:

[0052] F=ω1A+ω2B+ω3C+ω4D

[0053] Among them, F represents the score of the activation effect, ω1, ω2, ω3 and ω4 represent the weights of the four factors of power, voltage stability, current density and energy conversion efficiency, respectively, ω1:ω2:ω3:ω4=3:3:2:2, A, B, C and D represent the degree of power improvement, the degree of improvement in voltage stability, the degree of change in current density and the degree of change in energy conversion efficiency, respectively. The larger the value of F, the better the activation effect.

[0054] Specific workflow: At a fuel cell manufacturer, a batch of large fuel cells were activated. During the initial preparation, the status of each fuel cell was carefully checked using an electrochemical impedance spectroscopy. During the electrode pretreatment stage, ultrasonic cleaning was first performed, and then the electrodes were immersed in a sodium hydroxide solution adjusted to a pH of 12. The plasma treatment used nitrogen gas with a gas flow rate of 80 sccm and a treatment temperature of 180°C.

[0055] During the injection of activation reagents, ensure that the hydrogen flow rate is 8Kg / H, the pressure is 12bar, and the temperature is 55°C. During the activation treatment, set the current value to 4A, the starting voltage to 0.4V, and increase it by 0.1V every 45 minutes. The maximum voltage does not exceed 0.7V. The temperature range is 80°C and the activation time is 15 hours. During the activation process, pay close attention to various performance indicators of the fuel cell. After the activation is completed, performance tests show that the output power is increased by 35%, the voltage stability is improved by 30%, the current density is increased by 25%, and the energy conversion efficiency is increased by 20%.

[0056] Furthermore, by using the four-dimensional evaluation indicators of power, voltage stability, current density and energy conversion efficiency to quantitatively analyze the activation effect in the performance test after activation, and building a dedicated database to record the data of each activation, it can accurately reflect the activation effect of the fuel cell and provide a scientific basis for subsequent parameter adjustment and optimization. By continuously optimizing the parameters, the activation efficiency of the fuel cell can be further improved.

[0057] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for rapid activation of a fuel cell, characterized in that: The following steps are involved: Step 1: Preliminary preparation: test the working status of the fuel cell and its components, and prepare the reagents and equipment required for activation; Step 2: Electrode pretreatment: Clean the fuel cell electrodes, electrolyte layer, and seals. Soak the electrodes in a solution with a certain pH value, depending on the electrode material. In the step 2, the electrode pretreatment method is to use a fuel cell-specific cleaning agent and an ultrasonic cleaning machine to remove dust, oil and other impurities attached to the surface of the fuel cell electrode, electrolyte layer and seal, prepare dilute sulfuric acid with a pH value of 3 and a sodium hydroxide solution with a pH value of 12, adjust the pH value of the solution to a required range according to the type of fuel cell, and the required range is set based on the historical commonly used pH value of this type of fuel cell, immerse the cleaned electrode in the adjusted pH solution for 1 hour, observe the solution state and electrode surface changes every 10 minutes, and after the immersion is completed, remove the electrode from the solution, rinse with deionized water to remove residual solution components, and use a paper towel to absorb moisture on the electrode surface; During the electrode pretreatment process, plasma treatment technology is used to modify the surface of the fuel cell electrode, and nitrogen is used as the plasma gas, the gas flow rate is 10 sccm-100 sccm, and the treatment temperature is 100° C.-200° C.; Step 3: Injecting the activation reagent into the electrolyte layer of the fuel cell using a liquid injection device, and monitoring the fuel cell pressure, temperature, and liquid level during the injection process; Step 4: Activation treatment: connect the fuel cell injected with the activation reagent to the activation device and set various parameters of the activation device; Step 5: Post-processing: After activation is completed, the fuel cell is disassembled from the activation equipment, the remaining activation reagent is discharged, the residual activation reagent and impurities are removed, and the electrodes are inspected. If there is no abnormality, the fuel cell is reassembled; Step 6: Evaluation and optimization: Conduct comprehensive performance tests on the activated fuel cell, compare the test results with the performance before activation, evaluate the activation effect, and adjust the parameters during the activation process based on the evaluation results. Establish a fuel cell activation database to record the process and results of each activation.

2. A fuel cell rapid activation method according to claim 1, characterized in that: In the step 1, the specific method of the preliminary preparation is to use an electrochemical impedance spectrometer to inspect the electrodes, electrolyte layer, seals and connecting parts of the fuel cell.

3. The method for rapid activation of a fuel cell according to claim 1, wherein: In step three, the activation reagent is hydrogen. The specific method of injecting the activation reagent is to inject hydrogen into the electrolyte layer of the fuel cell through the gas pipeline of the hydrogen tank. A sensor is provided at the inlet position of the hydrogen injection fuel cell, which can monitor the flow rate, pressure and temperature of the hydrogen in real time. The normal value of the hydrogen flow rate is between 0Kg / H and 12Kg / H, the normal value of the hydrogen pressure is between 4bar and 15bar, and the normal value of the hydrogen temperature is between 40°C and 60°C. During the injection of the activation reagent, the fuel cell pressure, temperature, liquid level, and the injection amount and time of the activation reagent are recorded.

4. A fuel cell rapid activation method according to claim 1, characterized in that: In the step 4, the specific method of the activation treatment is to connect the fuel cell that has been injected with hydrogen to the activation equipment. For small fuel cells, the current value is set to 50mA-300mA, the starting voltage is 0.6V, it is increased by 0.05V every 30 minutes, and the maximum voltage is less than 0.85V, the temperature range is 50℃-70℃, and the activation time is 2h-8h. For large fuel cells, the current value is set to 500mA-5A, the starting voltage is 0.4V, it is increased by 0.1V every 45 minutes, and the maximum voltage is less than 0.75V, the temperature range is 70℃-90℃, and the activation time is 12h-20h. During the activation process, the output power, voltage stability and current density of the fuel cell are continuously monitored. When abnormal fluctuations in performance indicators are found, activation is immediately stopped and troubleshooting is performed.

5. The method for rapid activation of a fuel cell according to claim 1, wherein: In step five, the specific method of post-processing is to disconnect all power connections, remove the fuel cell from the activation device, use the hydrogen emission control device to discharge the remaining hydrogen in the fuel cell, use a high-pressure nitrogen purge device to remove residual hydrogen and impurities, and use an aqueous detergent to clean the inside of the fuel cell. After cleaning, rinse with deionized water 3-5 times and seal the exhaust port with a sealant gun.

6. A fuel cell rapid activation method according to claim 1, characterized in that: In step six, the specific method of performance testing is to use a motor dynamic power tester to test the power of the fuel cell, a voltage monitor calibrator to test the voltage stability of the fuel cell, a current density ruler to test the current density of the fuel cell, and an energy analyzer to test the energy conversion efficiency of the fuel cell. The specific method of adjusting the parameters in the activation process according to the evaluation results is: if the output power is low, adjust the current and voltage parameters of the activation equipment; if the voltage stability is low, adjust the temperature during the activation process; if the current density is low, increase the current size and the amount of activator injection; if the energy conversion efficiency is low, adjust the current and voltage parameters of the activation equipment; the method of establishing the fuel cell activation database is to use the MySQL database management system to store the parameter data in the entire test step.

7. The method for rapid activation of a fuel cell according to claim 1, wherein: In step 6, the activation effect is evaluated by calculating the activation effect using a formula, which is as follows: Among them, F represents the score of the activation effect. 、 、 Represents the weights of the four factors of power, voltage stability, current density and energy conversion efficiency, : : : =3:3:2:2, A, B, C and D represent the degree of power improvement, voltage stability improvement, current density change and energy conversion efficiency change respectively. The larger the value of F, the better the activation effect.

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