Battery purging method, storage medium, product and fuel cell

Abstract

The invention discloses a battery purging method, a storage medium, a product and a fuel cell, and relates to the technical field of battery purging, the disclosed battery purging method comprises the following steps: when it is detected that battery assembly is completed, performing water circulation on a cooling loop in a battery, and maintaining the temperature of the battery to a target temperature; each test unit in the battery is exhausted by using liquid water, the liquid water enters the battery through a rectangular water bath channel positioned at the lower part and is discharged out of the battery through a rectangular water bath channel positioned at the upper part, and the rectangular water bath channels are closed when no bubble is detected in a pipeline; and when it is detected that exhaust of each test unit is completed, drainage is performed on each test unit in the battery by using a gas working medium, the gas working medium enters the battery through the rectangular gas groove located above and is discharged out of the battery through the rectangular gas groove located below, and when it is detected that no stranded liquid water exists in the pipeline, it is confirmed that battery purging is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of battery purge, and in particular to a battery purge method, storage medium, product and fuel cell. Background Art

[0002] Traditional battery purging methods include gas purging, heat purging, ultrasonic purging, chemical purging, etc. Among them, gas purging, heat purging, etc. are usually simple to operate, do not require complex equipment or technology, and are suitable for most battery systems. The cost is low, but due to the simple equipment, the efficiency of the above battery purging methods is limited, and it is impossible to completely remove the gas or impurities inside the battery, resulting in a decrease in battery performance. The ultrasonic purging method, chemical purging method, etc. have better purging effects and are suitable for removing tiny bubbles and can effectively remove specific types of gases or impurities, but the equipment is complex, the cost is high, and it may cause damage to battery materials and is complicated to operate.

[0003] Therefore, in order to avoid damaging the battery and to perform the purge in a manner that does not require overly complex equipment, it is necessary to change the battery structure and adopt a more convenient battery purge method.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of the present invention is to provide a battery purge method, storage medium, product and fuel cell, aiming to solve the technical problem of low-cost purge without damaging the battery.

[0006] To achieve the above object, the present invention provides a battery purging method, the method comprising:

[0007] When it is detected that the battery assembly is completed, water is circulated in the cooling circuit of the battery to maintain the battery temperature at a target temperature;

[0008] Each test unit in the battery is vented using liquid water, the liquid water enters the battery from the rectangular water bath channel located below, and is discharged from the battery from the rectangular water bath channel located above, and the rectangular water bath channel is closed when no bubbles are detected in the pipeline;

[0009] When it is detected that the exhaust of each test unit is completed, each test unit in the battery is drained using a gaseous working medium. The gaseous working medium enters the battery from the rectangular gas groove located above and is discharged from the battery from the rectangular gas groove located below. When it is detected that there is no liquid water in the form of streams in the pipeline, it is confirmed that the battery purge is completed.

[0010] In one embodiment, after the step of confirming that the battery purge is completed when no liquid water in the pipeline is detected, the step includes:

[0011] Performing a local electrochemical test on each of the test units;

[0012] When it is detected that the test of each test unit is completed, the liquid water pipeline is reconnected for circulation, the liquid water enters the battery from the rectangular water bath channel located below, and is discharged from the battery from the rectangular water bath channel located above, and when it is detected that there is no liquid water in the pipeline, it is confirmed that the gas working medium is completely discharged.

[0013] In one embodiment, the battery assembly comprises:

[0014] Anode insulating plate, anode air inlet end plate, anode water bath hollow plate, anode current collecting plate, anode partition flow field plate, membrane electrode, positioning pin, cathode partition flow field plate, cathode current collecting plate, cathode water bath hollow plate, cathode air inlet end plate and cathode insulating plate, wherein the anode partition flow field plate and the cathode partition flow field plate are mirror-symmetrical to each other, so that the areas divided by the positive and negative electrodes correspond to each other.

[0015] In one embodiment, the anode partition flow field plate and the cathode partition flow field plate are provided with sealing grooves, and sealing rings are provided in the sealing grooves to prevent fluid leakage between the regions.

[0016] In one embodiment, the anode water bath hollow plate and the cathode water bath hollow plate are provided with the rectangular water bath channel, and threaded holes are opened on the side as the inlet and outlet of each of the rectangular water bath channels. The coolant enters from the threaded hole on the first side and flows out from the threaded hole on the second side to maintain the operating temperature of the battery.

[0017] In one embodiment, the rectangular gas grooves are respectively opened above and below the rectangular water bath channel for guiding gas, and a sealing ring is provided between each of the rectangular gas grooves and the rectangular water bath channel to prevent leakage of the gas working medium.

[0018] In one embodiment, the anode air inlet end plate and the cathode air inlet end plate are provided with a plurality of threaded holes for installing an inlet pipe and an outlet pipe, and each pair of the inlet pipe and the outlet pipe corresponds to one of the test units.

[0019] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, which is a computer-readable storage medium, and stores a computer program on the storage medium. When the computer program is executed by a processor, the steps of the battery purge method described above are implemented.

[0020] In addition, to achieve the above objective, the present invention further provides a computer program product, wherein the computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the battery purging method described above are implemented.

[0021] In addition, to achieve the above-mentioned purpose, the present invention also provides a fuel cell, which includes the above-mentioned battery assembly.

[0022] One or more technical solutions proposed in the present invention have at least the following technical effects:

[0023] The present invention circulates water in the cooling circuit of the battery to maintain the battery temperature to the target temperature when the battery assembly is detected to be completed; uses liquid water to exhaust each test unit in the battery, the liquid water enters the battery from the rectangular water bath channel located below, and is discharged from the battery from the rectangular water bath channel located above, and the rectangular water bath channel is closed when no bubbles are detected in the pipeline; when it is detected that the exhaust of each test unit is completed, uses gaseous working medium to drain water from each test unit in the battery, the gaseous working medium enters the battery from the rectangular gas groove located above, and is discharged from the battery from the rectangular gas groove located below, and when it is detected that there is no strand of liquid water in the pipeline, it is confirmed that the battery purge is completed. The present invention first cleans the test unit in the battery with liquid water, and then cleans it with gaseous working medium to complete the battery purge. Compared with the prior art, the present invention can directly quantify the purge process, realize rapid purge, avoid repeated disassembly and assembly when replacing the test unit, reduce damage to the battery, and reduce the purge cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 A schematic diagram of a process flow provided for a first embodiment of a battery purging method of the present invention;

[0027] Figure 2 An exploded view of a battery assembly in the battery purging method of the present invention;

[0028] Figure 3 A diagram of a ratchet mechanism of a battery assembly in a battery purging method of the present invention;

[0029] Figure 4 A diagram of a cathode bipolar plate of a battery assembly in the battery purging method of the present invention;

[0030] Figure 5 A diagram of an anode bipolar plate of a battery assembly in a battery purging method of the present invention;

[0031] Figure 6 A water bath hollow plate diagram of a battery assembly in the battery purging method of the present invention;

[0032] Figure 7 This is a diagram of the air intake end plate of the battery assembly in the battery purge method of the present invention.

[0033] Description of Figure Numbers:

[0034] Label name Label name 1 Anode insulation plate 2 Anode air inlet end plate 3 Anode water bath hollow plate 4 Anode current collector 5 Anode partition flow field plate 6 Membrane Electrode 7 Positioning pin 8 Cathode zone flow field plate 9 Cathode current collector 10 Cathode water bath hollow plate 11 Cathode air inlet end plate 12 Cathode insulation plate

[0035] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present invention and are not used to limit the present invention.

[0040] In order to better understand the technical solution of the present invention, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0041] The main solution of the embodiment of the present invention is: when it is detected that the battery assembly is completed, water is circulated in the cooling circuit of the battery to maintain the battery temperature to the target temperature; liquid water is used to exhaust each test unit in the battery, the liquid water enters the battery from the rectangular water bath channel located below, and is discharged from the battery from the rectangular water bath channel located above, and the rectangular water bath channel is closed when no bubbles are detected in the pipeline; when it is detected that the exhaust of each test unit is completed, a gas working medium is used to drain each test unit in the battery, the gas working medium enters the battery from the rectangular gas groove located above, and is discharged from the battery from the rectangular gas groove located below, and when it is detected that there is no liquid water in the form of strands in the pipeline, it is confirmed that the battery purge is completed.

[0042] In this embodiment, for the convenience of description, the following description is made with the identification controller as the execution subject.

[0043] Since traditional battery purging methods include gas purging, heat purging, ultrasonic purging, chemical purging, etc., among which gas purging, heat purging, etc. are usually simple to operate, do not require complex equipment or technology, and are suitable for most battery systems. The cost is low, but due to the simple equipment, the efficiency of the above-mentioned battery purging methods is limited, and it is impossible to completely remove the gas or impurities inside the battery, resulting in a decrease in battery performance. The ultrasonic purging method, chemical purging method, etc. have better purging effects, are suitable for removing tiny bubbles and can effectively remove specific types of gases or impurities, but the equipment is complex, the cost is high, and it may cause damage to battery materials and is complicated to operate.

[0044] Although the traditional battery purge method is simple and easy to use, it has certain limitations in terms of efficiency and energy consumption. The existing battery purge method improves the purge effect by introducing vacuum, circulation, ultrasonic, chemical, thermal and pulse technologies, but it also brings challenges of increased equipment complexity and cost. The selection of a suitable purge method requires comprehensive consideration based on the specific battery type and application scenario.

[0045] The present invention provides a solution, by circulating water in the cooling circuit in the battery when the battery assembly is detected to be completed, the battery temperature is maintained to the target temperature; each test unit in the battery is vented with liquid water, the liquid water enters the battery from the rectangular water bath channel located below, and is discharged from the battery from the rectangular water bath channel located above, and the rectangular water bath channel is closed when no bubbles are detected in the pipeline; when each test unit is detected to be exhausted, each test unit in the battery is drained with a gas working medium, the gas working medium enters the battery from the rectangular gas groove located above, and is discharged from the battery from the rectangular gas groove located below, and when no liquid water in the form of strands is detected in the pipeline, the battery purge is confirmed to be completed. The present invention first performs liquid water cleaning on the test unit in the battery, and then performs gas working medium cleaning to complete the battery purge work. Compared with the prior art, the present invention can directly quantify the purge process, realize rapid purge, avoid repeated disassembly and assembly when replacing the test unit, reduce damage to the battery, and reduce the purge cost.

[0046] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a battery purge device, etc. The following takes the controller as an example to illustrate this embodiment and the following embodiments.

[0047] Based on this, an embodiment of the present invention provides a battery purging method, referring to Figure 1 , Figure 1FIG. 1 is a flow chart of a first embodiment of a battery purging method according to the present invention.

[0048] In this embodiment, the battery purging method includes steps S10 to S30:

[0049] Step S10, when it is detected that the battery assembly is completed, water is circulated in the cooling circuit in the battery to maintain the battery temperature at the target temperature.

[0050] It should be noted that the target temperature may be 60 degrees Celsius or 80 degrees Celsius and may be calibrated, and this embodiment does not impose any limitation on this.

[0051] It is understandable that in a fuel cell system, the target temperature is usually determined according to the type and design requirements of the battery, and is generally between 60 degrees Celsius and 80 degrees Celsius. This temperature range can ensure efficient operation of the fuel cell while avoiding performance degradation or material damage caused by excessively high or low temperatures.

[0052] In a specific implementation, after the battery assembly is detected to be completed, the cooling water circuit circulation is started. The coolant enters from the threaded hole on one side and flows out from the threaded hole on the other side through the rectangular water bath channels of the anode water bath hollow plate (3) and the cathode water bath hollow plate (10). The flow rate and temperature of the coolant are adjusted in real time to ensure that the battery temperature is stable within the target range. The temperature sensor continuously monitors the battery temperature and feeds back the data to achieve dynamic adjustment. By real-time monitoring and adjusting the flow rate and temperature of the coolant, the battery temperature can be accurately maintained within the target range to ensure efficient operation of the battery. A stable temperature environment helps to improve the electrochemical performance and life of the battery and avoid performance degradation due to temperature fluctuations. An effective cooling system can prevent the battery from being damaged due to overheating or performance degradation due to overcooling, thereby improving the safety and reliability of the battery. The entire temperature adjustment process is automated, reducing manual intervention and improving operational efficiency and consistency. Through the above steps, the battery temperature can be accurately controlled to ensure that the battery operates within the optimal temperature range, thereby improving overall performance and reliability.

[0053] Step S20, using liquid water to exhaust each test unit in the battery, the liquid water enters the battery through the rectangular water bath channel located below, and is discharged from the battery through the rectangular water bath channel located above, and the rectangular water bath channel is closed when no bubbles are detected in the pipeline.

[0054] It should be noted that the above-mentioned test unit is an independent electrochemical reaction unit in the battery;

[0055] It should be noted that the rectangular water bath channel is a rectangular cross-section channel designed in the anode water bath hollow plate (3) and the cathode water bath hollow plate (10) for the flow of cooling liquid or liquid water.

[0056] It is understandable that the above test unit is usually composed of an anode, a cathode and a membrane electrode, and is used to test its performance separately;

[0057] It is understood that the above-mentioned liquid water exhaust is to pass liquid water into the battery, and use the flow of water to discharge the gas inside the battery (such as air or gas generated by the reaction) to ensure that there are no bubbles inside the battery;

[0058] It is understandable that the absence of bubbles in the above pipeline refers to a state in which no gas residue exists in the pipeline, confirmed by observation or sensor detection during the flow of liquid water.

[0059] In a specific implementation, after the battery assembly is completed, the system starts the liquid water exhaust process. Liquid water enters the battery from the rectangular water bath channel located below, flows through the above-mentioned test unit, and is discharged from the above-mentioned rectangular water bath channel located above. The flow of liquid water will bring out the gas inside the battery (such as air or gas generated by the reaction) until no bubbles are detected in the pipeline. At this time, the system automatically closes the inlet and outlet of the above-mentioned rectangular water bath channel to complete the exhaust process. Efficient exhaust: Liquid water has strong fluidity and can effectively take away the gas inside the battery, ensuring that there are no bubbles remaining inside the battery and improving the test accuracy. By automatically controlling the flow and detection of liquid water, manual intervention is reduced, and operational efficiency and consistency are improved. The bubble-free internal environment of the battery can ensure the accuracy of electrochemical testing and avoid the influence of gas interference on the test results. This step is applicable to various types of fuel cells and has strong versatility and practicality.

[0060] Step S30, when it is detected that the exhaust of each test unit is completed, each test unit in the battery is drained using a gaseous working medium, the gaseous working medium enters the battery from the rectangular gas groove located above, and is discharged from the battery from the rectangular gas groove located below, and when it is detected that there is no liquid water in the form of streams in the pipeline, it is confirmed that the battery purge is completed.

[0061] It should be noted that the above-mentioned gas working medium is a specific gas (such as nitrogen, air, etc.) used for purging or exhausting;

[0062] It should be noted that the rectangular gas grooves are rectangular cross-section channels designed in the anode water bath hollow plate (3) and the cathode water bath hollow plate (10) for gas flow and distribution.

[0063] It is understandable that the function of the above-mentioned gas working medium is to drive away liquid water or other residues inside the battery;

[0064] It is to be understood that the above-mentioned stranded liquid water refers to liquid water that forms a continuous flow in the pipeline, which is usually manifested as an obvious liquid water flow state;

[0065] It is understandable that the above-mentioned purging completion refers to the complete discharge of liquid water inside the battery through the flow of gaseous working medium to ensure that no liquid water remains inside the battery.

[0066] In a specific implementation, after it is detected that the exhaust of each of the above-mentioned test units is completed, the above-mentioned gas working medium drainage process is started. The above-mentioned gas working medium enters the battery from the above-mentioned rectangular gas groove located at the top, flows through the test unit, and is discharged from the above-mentioned rectangular gas groove located at the bottom. The flow of the above-mentioned gas working medium will bring out the liquid water inside the battery until it is detected that there is no liquid water in the pipeline. At this time, it is confirmed that the battery purge is completed, and the inlet and outlet of the above-mentioned gas working medium are closed. The flow of the above-mentioned gas working medium can effectively drive out the liquid water inside the battery, ensure that there is no liquid water residue inside the battery, and improve the test accuracy. The internal environment of the battery without liquid water can ensure the accuracy of the electrochemical test and avoid the influence of liquid water interference on the test results. Through the above steps, the drainage process inside the battery can be completed efficiently and accurately, ensuring that the battery is tested in an environment without liquid water, thereby improving the reliability and accuracy of the test results.

[0067] This embodiment provides a battery purging method, by circulating water in the cooling circuit in the battery when the battery assembly is detected to be completed, maintaining the battery temperature to the target temperature; using liquid water to exhaust each test unit in the battery, the liquid water enters the battery from the rectangular water bath channel located below, and is discharged from the battery from the rectangular water bath channel located above, and the rectangular water bath channel is closed when no bubbles are detected in the pipeline; when it is detected that the exhaust of each test unit is completed, using gaseous working medium to drain water from each test unit in the battery, the gaseous working medium enters the battery from the rectangular gas groove located above, and is discharged from the battery from the rectangular gas groove located below, and when it is detected that there is no strand of liquid water in the pipeline, it is confirmed that the battery purging is completed. The present invention first cleans the test unit in the battery with liquid water, and then cleans it with gaseous working medium to complete the battery purging work. Compared with the prior art, the present invention can directly quantify the purging process, realize rapid purging, avoid repeated disassembly and assembly when replacing the test unit, reduce damage to the battery, and reduce the purging cost.

[0068] In a feasible implementation manner, step S30 may further include steps S31 to S32:

[0069] Step S31, performing a local electrochemical test on each of the test units.

[0070] In the specific implementation, after confirming that the battery purge is completed and there is no liquid water remaining inside, a local electrochemical test is started for each of the above test units. First, the anode and cathode inlets of the required test unit are connected to the electrochemical testing equipment respectively to ensure that the gas working fluid enters from the upper gas tank and is discharged from the lower gas tank. Subsequently, a specific voltage or current is applied to the test unit through the electrochemical workstation to measure its current-voltage characteristics, impedance spectrum or other electrochemical parameters. During the test, the system monitors the battery's temperature, gas flow, pressure and other parameters in real time to ensure that the test conditions are stable. After the test is completed, the system automatically records and analyzes the data and generates a test report. This step can efficiently and accurately evaluate the electrochemical performance of each test unit by precisely controlling the test conditions and automated operations, providing reliable data support for battery optimization.

[0071] Step S32, when it is detected that the test of each test unit is completed, the liquid water pipeline is reconnected for circulation, the liquid water enters the battery from the rectangular water bath channel located below, and is discharged from the battery from the rectangular water bath channel located above, and when it is detected that there is no liquid water in the pipeline, it is confirmed that the gas working medium is completely discharged.

[0072] In the specific implementation, after detecting that each test unit has been tested, the liquid water pipeline is reconnected for circulation. Liquid water enters the battery from the rectangular water bath channel located below, flows through the test unit, and is discharged from the rectangular water bath channel located above. The flow of liquid water will bring out the residual gas working fluid inside the battery until no liquid water is detected in the pipeline. At this time, the system confirms that the gas working fluid has been discharged cleanly and closes the inlet and outlet of the liquid water pipeline.

[0073] In order to ensure that the above-mentioned battery purging method can be implemented completely and efficiently, the structure of the battery is improved accordingly. For example, referring to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 as well as Figure 7 , Figure 2 An exploded view of a battery assembly in the battery purging method of the present invention; Figure 3 A diagram of a ratchet mechanism of a battery assembly in a battery purging method of the present invention; Figure 4 A diagram of a cathode bipolar plate of a battery assembly in the battery purging method of the present invention; Figure 5 A diagram of an anode bipolar plate of a battery assembly in a battery purging method of the present invention; Figure 6 A water bath hollow plate diagram of a battery assembly in the battery purging method of the present invention; Figure 7 This is a diagram of the air intake end plate of the battery assembly in the battery purge method of the present invention.

[0074] In this embodiment, the battery assembly includes:

[0075] An anode insulating plate (1), an anode air inlet end plate (2), an anode water bath hollow plate (3), an anode current collecting plate (4), an anode partition flow field plate (5), a membrane electrode (6), a positioning pin (7), a cathode partition flow field plate (8), a cathode current collecting plate (9), a cathode water bath hollow plate (10), a cathode air inlet end plate (11) and a cathode insulating plate (12), wherein the anode partition flow field plate (5) and the cathode partition flow field plate (8) are mirror-symmetrical to each other, so that the areas divided by the positive and negative electrodes correspond to each other.

[0076] In a specific implementation, a complete fuel cell stack is formed by sequentially assembling an anode insulating plate (1), an anode air inlet end plate (2), an anode water bath hollow plate (3), an anode current collector plate (4), an anode partition flow field plate (5), a membrane electrode (6), a positioning pin (7), a cathode partition flow field plate (8), a cathode current collector plate (9), a cathode water bath hollow plate (10), a cathode air inlet end plate (11) and a cathode insulating plate (12). The anode partition flow field plate (5) and the cathode partition flow field plate (8) are designed in a mirror symmetric manner to ensure that the partitions of the positive and negative electrodes correspond one to one. The positioning pin (7) is used to accurately align the components to ensure the accuracy of assembly. The anode and cathode water bath hollow plates (3, 10) are respectively used for the flow of coolant to maintain the operating temperature of the battery, while the air inlet end plates (2, 11) are used for the input and output of gaseous working fluids. The mirror-symmetric design of the anode partition flow field plate (5) and the cathode partition flow field plate (8) enables one-to-one correspondence between the anode and cathode partitions, ensuring uniform reaction inside the battery and improving battery performance and stability. : The positioning pins (7) are used to achieve precise alignment of the components to avoid performance degradation or leakage problems caused by assembly errors. The design of the anode water bath hollow plate (3) and the cathode water bath hollow plate (10) can effectively control the battery operating temperature and avoid the impact of overheating or overcooling on battery performance. The functions of each component are clear, which is convenient for assembly, maintenance and replacement, and improves the operability and service life of the battery. The design of the anode air inlet end plate (2) and the cathode air inlet end plate (11) ensures uniform distribution of the gas working medium and improves the reaction efficiency.

[0077] In this embodiment, the anode partition flow field plate (5) and the cathode partition flow field plate (8) are provided with sealing grooves, and sealing rings are provided in the sealing grooves to prevent fluid leakage between the various regions.

[0078] In a specific implementation, sealing grooves are provided on the anode partition flow field plate (5) and the cathode partition flow field plate (8), and sealing rings are installed in the sealing grooves. The design of the sealing grooves matches the partition structure of the flow field plate to ensure that an independent sealed space is formed between each partition. When the battery is assembled, the sealing ring fits tightly under pressure to effectively block the fluid (such as gas or liquid water) between the partitions to prevent leakage. This design combines the functionality of the flow field plate and the reliability of the sealing ring to ensure that the fluid inside the battery flows along a predetermined path.

[0079] In this embodiment, the anode water bath hollow plate (3) and the cathode water bath hollow plate (10) are provided with the rectangular water bath channel, and threaded holes are opened on the side as the inlet and outlet of each rectangular water bath channel. The coolant enters from the first side threaded hole and flows out from the second side threaded hole to maintain the operating temperature of the battery.

[0080] In a specific implementation, a rectangular water bath channel is designed in the anode water bath hollow plate (3) and the cathode water bath hollow plate (10), and threaded holes are opened on the side of the channel as the inlet and outlet of the coolant. The coolant enters the rectangular water bath channel from the threaded hole on the first side, flows through the entire channel, and then flows out from the threaded hole on the second side. The circulating coolant can effectively absorb the heat generated during the operation of the battery and maintain the battery temperature within the target range. The temperature sensor monitors the battery temperature in real time and feeds the data back to the control system to dynamically adjust the flow and temperature of the coolant to ensure the stability of the battery operating temperature. Efficient thermal management: The design of the rectangular water bath channel increases the contact area between the coolant and the battery, improves the heat exchange efficiency, and ensures that the battery temperature is evenly distributed. By real-time monitoring and adjusting the flow and temperature of the coolant, the battery temperature can be accurately maintained within the target range to avoid the influence of overheating or overcooling on the battery performance. The rectangular water bath channel is integrated in the water bath hollow plate, saving space for external cooling equipment and making the battery structure more compact. The threaded hole design facilitates the connection and disassembly of the coolant pipeline and simplifies the assembly and maintenance process.

[0081] In this embodiment, the rectangular gas grooves are respectively opened above and below the rectangular water bath channel for guiding gas, and a sealing ring is provided between each of the rectangular gas grooves and the rectangular water bath channel to prevent leakage of the gas working medium.

[0082] In a specific implementation, rectangular gas grooves are respectively provided above and below the rectangular water bath channel in the anode water bath hollow plate (3) and the cathode water bath hollow plate (10) to guide the flow of the gaseous working medium. The rectangular gas groove and the rectangular water bath channel are isolated by a sealing ring to ensure that the gaseous working medium does not leak into the water bath channel. The gaseous working medium enters from one end of the gas groove, flows through the gas groove and is discharged from the other end, while the coolant flows independently in the rectangular water bath channel. The design and installation of the sealing ring ensure complete isolation between the gas and liquid channels, avoiding mixing of the gas and the coolant. The sealing ring effectively blocks the leakage between the gas working medium and the coolant, ensuring that the gas and the liquid flow independently in their respective channels to avoid mutual interference. The independent gas and liquid channel design optimizes gas distribution and thermal management, and improves the overall performance and efficiency of the battery. The rectangular gas groove and the rectangular water bath channel are integrated in the same hollow plate, saving space and making the battery structure more compact and efficient. The design of the sealing ring is simple and reliable, can work stably for a long time, and reduces maintenance requirements.

[0083] In this embodiment, the anode air inlet end plate (2) and the cathode air inlet end plate (11) are provided with a plurality of threaded holes for installing inlet pipes and outlet pipes, and each pair of inlet pipes and outlet pipes corresponds to one test unit.

[0084] In a specific implementation, a plurality of threaded holes are provided on the anode air inlet end plate (2) and the cathode air inlet end plate (11) for installing inlet and outlet pipes. Each pair of inlet and outlet pipes corresponds to a test unit, ensuring that each test unit can independently receive the gaseous working medium and discharge the reaction products. The gaseous working medium enters the test unit through the inlet pipe, participates in the electrochemical reaction, and is discharged through the outlet pipe. The design of the threaded holes facilitates the installation and disassembly of the pipes, while ensuring the sealing and stability of the connection. Each test unit is equipped with independent inlet and outlet pipes, which can independently control the input and output of the gaseous working medium, thereby improving the flexibility and accuracy of the test. The threaded connection ensures the sealing between the pipe and the end plate, prevents gas leakage, and improves the reliability of the system. Multiple threaded holes are integrated in the air inlet end plate, saving space for external connectors and making the battery structure more compact.

[0085] It should be noted that the above examples are only used to understand the present invention and do not constitute a limitation on the battery purging method of the present invention. More simple transformations based on this technical concept are all within the protection scope of the present invention.

[0086] It should be understood that the various parts disclosed in the present invention can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0087] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

[0088] The present invention provides a computer-readable storage medium having computer-readable program instructions (ie, computer program) stored thereon, and the computer-readable program instructions are used to execute the battery purging method in the above embodiment.

[0089] The computer-readable storage medium provided by the present invention may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0090] The computer-readable storage medium may be included in the battery purge device; or may exist independently without being assembled into the battery purge device.

[0091] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the battery purging device, the battery purging device: when it is detected that the battery assembly is completed, circulates water in the cooling circuit in the battery to maintain the battery temperature to the target temperature; uses liquid water to exhaust each test unit in the battery, the liquid water enters the battery from the rectangular water bath channel located below, and is discharged from the battery from the rectangular water bath channel located above, and the rectangular water bath channel is closed when it is detected that there are no bubbles in the pipeline; when it is detected that the exhaust of each test unit is completed, uses gaseous working medium to drain the water from each test unit in the battery, the gaseous working medium enters the battery from the rectangular gas groove located above, and is discharged from the battery from the rectangular gas groove located below, and when it is detected that there is no liquid water in the form of strands in the pipeline, it is confirmed that the battery purging is completed.

[0092] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0093] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present invention. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0094] The modules involved in the embodiments of the present invention may be implemented by software or hardware, wherein the name of the module does not limit the unit itself in some cases.

[0095] The readable storage medium provided by the present invention is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned battery purging method, and can solve the technical problem of battery purging. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present invention are the same as the beneficial effects of the battery purging method provided by the above-mentioned embodiment, and will not be repeated here.

[0096] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the steps of the battery purging method as described above are implemented.

[0097] The computer program product provided by the present invention can solve the technical problem of battery purging. Compared with the prior art, the beneficial effects of the computer program product provided by the present invention are the same as the beneficial effects of the battery purging method provided by the above embodiment, which will not be described in detail here.

[0098] In addition, to achieve the above object, the present invention also provides a fuel cell, the fuel cell comprising the battery assembly as described above. Other embodiments or specific implementations of the fuel cell of the present invention can refer to the embodiments of the battery assembly above, which will not be repeated here.

[0099] The above descriptions are only some embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A battery purging method, characterized in that: The purging method is applied to a battery assembly, and the battery purging method comprises: When it is detected that the battery assembly is completed, water is circulated in the cooling circuit of the battery to maintain the battery temperature at a target temperature; Each test unit in the battery is vented using liquid water, the liquid water enters the battery from the rectangular water bath channel located below, and is discharged from the battery from the rectangular water bath channel located above, and the rectangular water bath channel is closed when no bubbles are detected in the pipeline; When it is detected that the exhaust of each test unit is completed, each test unit in the battery is drained using a gaseous working medium. The gaseous working medium enters the battery from the rectangular gas groove located above and is discharged from the battery from the rectangular gas groove located below. When it is detected that there is no liquid water in the form of streams in the pipeline, it is confirmed that the battery purge is completed.

2. The battery purging method according to claim 1, characterized in that: After the step of confirming that the battery purge is completed when it is detected that there is no liquid water in the pipeline, the step includes: Performing a local electrochemical test on each of the test units; When it is detected that the test of each test unit is completed, the liquid water pipeline is reconnected for circulation, the liquid water enters the battery from the rectangular water bath channel located below, and is discharged from the battery from the rectangular water bath channel located above, and when it is detected that there is no liquid water in the pipeline, it is confirmed that the gas working medium is completely discharged.

3. The battery assembly according to claim 1, characterized in that The battery assembly comprises: Anode insulating plate, anode air inlet end plate, anode water bath hollow plate, anode current collecting plate, anode partition flow field plate, membrane electrode, positioning pin, cathode partition flow field plate, cathode current collecting plate, cathode water bath hollow plate, cathode air inlet end plate and cathode insulating plate, wherein the anode partition flow field plate and the cathode partition flow field plate are mirror-symmetrical to each other, so that the areas divided by the positive and negative electrodes correspond to each other.

4. The battery assembly according to claim 3, characterized in that: The anode partition flow field plate and the cathode partition flow field plate are provided with sealing grooves, and sealing rings are provided in the sealing grooves to prevent fluid leakage between the regions.

5. The battery assembly according to claim 3, characterized in that: The anode water bath hollow plate and the cathode water bath hollow plate are provided with the rectangular water bath channel, and threaded holes are opened on the side as the inlet and outlet of each rectangular water bath channel. The coolant enters from the first side threaded hole and flows out from the second side threaded hole to maintain the operating temperature of the battery.

6. The battery assembly according to claim 3, characterized in that: Rectangular gas grooves are respectively provided above and below the rectangular water bath channel for guiding gas, and sealing rings are provided between each of the rectangular gas grooves and the rectangular water bath channel for preventing leakage of the gas working medium.

7. The battery assembly according to claim 3, characterized in that: The anode air inlet end plate and the cathode air inlet end plate are provided with a plurality of threaded holes for installing an inlet pipeline and an outlet pipeline, and each pair of the inlet pipeline and the outlet pipeline corresponds to one of the test units.

8. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the battery purging method according to any one of claims 1 to 2 are implemented.

9. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the battery purging method according to any one of claims 1 to 2 are implemented.

10. A fuel cell, characterized in that: The fuel cell comprises: the battery assembly according to any one of claims 3 to 7.

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