A test method, device, medium and program product for battery storage gas generation

Abstract

The present application provides a test method, device, medium and program product for battery storage gas production, which relates to the field of battery performance testing technology. The method includes: receiving the oil bath temperature setting information from the user end to heat the silicone oil in the oil bath pot, and then receiving test parameter data including sampling time. Then, after determining the association between the target battery to be tested and the oil bath pot and the balance in a preset manner, receive a command to start the test. Then control the balance to sample weight data according to the sampling time, determine the volume change of the battery to be tested based on multiple weight data, and determine the test results in combination with the corresponding information of the oil bath pot. Finally, the test results are stored according to the data storage path and sent to the user end for display, providing an accurate, convenient, efficient and traceable solution for battery gas production testing.

Description

Technical Field

[0001] The present application relates to the technical field of battery performance testing, and in particular to a method, device, medium and program product for testing gas generation in battery storage. Background Art

[0002] Gas production is an inevitable phenomenon in the process of battery manufacturing and use, such as gas production due to overcharging and over-discharging, gas production due to storage, etc. The requirements for gas production and gas composition are different under different working conditions. Among them, the storage gas production test is to simulate the performance stability of the battery during the storage stage, which can help R&D personnel better optimize materials and designs.

[0003] The traditional method of testing the gas generation of battery test objects is usually to store them in an oven for a certain period of time, then manually take out the battery test objects and place them on a homemade balance device for single-point volume measurement.

[0004] However, the traditional method requires a combination of multiple devices to complete the experiment, such as ovens, voltmeters, balances, full-charge storage and charging equipment, etc. The battery test object has temperature changes during the transfer process, which affects the gas production volume. The volume measurement of the battery test object needs to be manually recorded and sorted, and there is a risk of data transcription errors. Therefore, it is difficult to accurately and efficiently test the volume of gas produced by the battery test object using the traditional method. Summary of the invention

[0005] The present application provides a battery storage gas production test method, equipment, medium and program product, which are used to accurately and efficiently detect the gas production of the battery during storage, providing a reliable basis for battery safety assessment and quality control.

[0006] In a first aspect, the present application provides a method for testing gas production in battery storage, which is applied to gas production testing equipment, wherein the gas production testing equipment includes a balance and multiple temperature-controllable oil baths, the balance is used to measure the weight of the battery to be tested, and the oil bath is used to hold silicone oil, the method comprising: after receiving the oil bath temperature setting information sent by the user end, heating the silicone oil in the oil bath according to the oil bath temperature; receiving test parameter data sent by the user end, the test parameter data at least including the sampling time, the mass of the battery to be tested and the data storage path; after determining that the target battery to be tested is associated with the oil bath and the balance according to a preset method, receiving a start test instruction sent by the user end; according to the start test instruction, controlling the balance to sample the weight of the target battery to be tested according to the sampling time to obtain multiple weight data at multiple time points; after determining the volume change of the target battery to be tested according to the multiple weight data, determining the test result according to the volume change and the information corresponding to the target battery to be tested and the oil bath; storing the test result according to the data storage path and sending it to the user end for display.

[0007] By adopting the above technical solution, users can set the oil bath temperature, heat the silicone oil, and provide a stable test temperature environment for the battery test object. The reception of test parameter data ensures the pertinence and traceability of the test. The balance samples weight data according to the sampling time, which can accurately reflect the state changes of the battery test object at different time points. The volume change is determined according to the weight data and the test results are determined in combination with the oil bath information, ensuring the accuracy of the results. The data is stored and sent to the user end for display, which is convenient for users to view and analyze the data in time, improving the efficiency and convenience of gas production testing.

[0008] In combination with some embodiments of the first aspect, in some embodiments, the gas production test equipment also includes a clamp and a bracket, the clamp is used to clamp the target battery to be tested, and the bracket is used to hang multiple clamps. After determining that the target battery to be tested is associated with the oil bath pot and the balance according to a preset method, before receiving the step of starting the test instruction sent by the user end, it also includes: after receiving the user's aviation plug number binding instruction, binding the first identification code on the aviation plug with the number corresponding to the battery to be tested; after detecting that the user uses the balance's barcode scanner to scan the second identification code on the clamp, associating the target battery to be tested with the balance.

[0009] By adopting the above technical solution, the aviation plug number binding instruction binds the first identification code to the battery test object number, which is convenient for identifying and managing different test objects. The barcode scanner scans the second identification code on the fixture to ensure that the target battery test object is accurately associated with the balance, improves the accuracy and traceability of the test, and avoids confusion and errors during the test process.

[0010] In combination with some embodiments of the first aspect, in some embodiments, after receiving the user's aviation plug number binding instruction, after the step of binding the first identification code on the aviation plug with the number corresponding to the battery to be tested, it also includes: determining the voltage value of the battery to be tested according to the aviation plug; and displaying the voltage value in a set area of ​​the display end.

[0011] By adopting the above technical solution, users can understand the voltage status of the battery in real time during the test, which helps to comprehensively analyze the performance and gas production of the battery, and improves the comprehensiveness and effectiveness of the test.

[0012] In combination with some embodiments of the first aspect, in some embodiments, after receiving the oil bath temperature setting information sent by the user end, before the step of heating the silicone oil in the oil bath pot according to the oil bath temperature, it also includes: after receiving the user clicking the weight calibration control on the display end, sending a confirmation instruction to the display end whether the device is in a no-load state; after receiving the no-load state instruction feedback from the display end, sending a calibration prompt message to the display end; after receiving the user clicking the calibration confirmation control according to the calibration prompt message, turning on the calibration function until the calibration is successful, and sending a calibration success message to the display end.

[0013] By adopting the above technical solution, weight calibration is performed before heating the silicone oil to ensure the accuracy of the balance. The device no-load status confirmation command is sent, and the calibration prompt information is sent after receiving the no-load status feedback, which ensures the orderly progress of the calibration process. The calibration function is turned on until it succeeds and the calibration success information is sent, which improves the reliability of the test data and provides a guarantee for the subsequent accurate testing of the weight change of the battery to be tested.

[0014] In combination with some embodiments of the first aspect, in some embodiments, after receiving the user clicking the calibration confirmation control according to the calibration prompt information, the calibration function is turned on until the calibration is successful, and the calibration success information is sent to the display end, it also includes: receiving the user selecting the weight reset control, resetting the weight baseline.

[0015] By adopting the above technical solution, the user selects the weight reset control to reset the weight baseline, and can reset the baseline at different test stages or under different test requirements, thereby improving the flexibility and adaptability of the test.

[0016] In combination with some embodiments of the first aspect, in some embodiments, the step of sending the test results to the user end for display after storing them according to the data storage path specifically includes: determining different parameter display contents according to the test results, the parameter display contents at least including a volume change curve and a temperature change curve; controlling the parameter display contents to be displayed in the graphic area of ​​the display end; controlling the experimental parameters during the test to be displayed in the experimental parameter information of the display end.

[0017] By adopting the above technical solution, different parameter display contents are determined according to the test results, such as volume change curve and temperature change curve, which intuitively shows the changes of the battery under test during the test process. The control parameter display content is displayed in the graphic area of ​​the display end, which is convenient for users to intuitively observe and analyze data.

[0018] In combination with some embodiments of the first aspect, in some embodiments, the gas production testing equipment further includes a slide rail, and the slide rail is used to connect the balance so that the balance slides on the slide rail.

[0019] By adopting the above technical solution, the setting of the slide rail enables the balance to slide on the slide rail, making it easy to adjust the position of the balance to meet different testing requirements.

[0020] In a second aspect, the present application provides a gas production test device, which includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to enable the gas production test device to perform the method described in the first aspect and any possible implementation method of the first aspect.

[0021] In a third aspect, the present application provides a computer-readable storage medium comprising instructions, which, when executed on a gas production test device, causes the gas production test device to execute the method described in the first aspect and any possible implementation manner of the first aspect.

[0022] In a fourth aspect, the present application provides a computer program product, which, when executed on a gas production test device, enables the gas production test device to execute the method described in the first aspect and any possible implementation manner of the first aspect.

[0023] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0024] 1. The technical means of receiving the oil bath temperature set by the user to heat the silicone oil, receiving the test parameter data, controlling the balance to sample the weight data according to the sampling time, determining the volume change based on the weight data and combining the oil bath pot information to determine the test results, and storing and sending the test results to the user end for display are adopted. Therefore, the technical problems of low efficiency and non-traceability of battery storage gas production test in the prior art are effectively solved, thereby achieving the technical effect of improving the accuracy, traceability and efficiency of battery storage gas production test.

[0025] 2. The technical means of setting a fixture and a bracket to place the battery to be tested, binding the identification code with the battery to be tested number through the aviation plug number binding instruction, and using a barcode scanner to associate the target battery to be tested with the balance are adopted. Therefore, the technical problem of easy confusion and inaccurate association of the battery to be tested in the test process in the prior art is effectively solved, thereby achieving the technical effect of improving the accuracy of identifying the battery to be tested and the accuracy of association with the test equipment.

[0026] 3. Due to the technical means of sending a command to confirm the no-load status of the equipment before heating the silicone oil, sending a calibration prompt message after receiving feedback and turning on the calibration function until success, and receiving the user's selection of the weight reset control to reset the weight baseline, the technical problem of inaccurate balance affecting the reliability of test results in the prior art is effectively solved, thereby achieving the technical effect of improving the reliability of test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of a framework of a method for testing gas generation in battery storage in an embodiment of the present application;

[0028] Figure 2 It is a flow chart of a method for testing gas generation in battery storage in an embodiment of the present application;

[0029] Figure 3 It is another flow chart of a method for testing gas generation in battery storage according to an embodiment of the present application;

[0030] Figure 4 It is a schematic diagram of the structure of a physical device of the gas production test equipment in the embodiment of the present application. DETAILED DESCRIPTION

[0031] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear indication to the contrary in the context. It should also be understood that the term "and / or" used in the present application refers to and includes any or all possible combinations of one or more listed items.

[0032] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0033] For ease of understanding, the following describes the structural framework of this application. Figure 1 , which is a schematic framework diagram of a method for testing gas production in battery storage in an embodiment of the present application.

[0034] exist Figure 1In the test, the gas production test equipment includes a balance, multiple temperature-controlled oil baths and slide rails. The upper part of the balance is usually designed with a slider structure that matches the slide rail. Its surface is smooth and finely processed to ensure smooth sliding on the slide rail. The slide rail is fixed to the bracket or frame on the top of the equipment. The material of the slide rail is generally high-strength steel to ensure that it can withstand the weight of the balance and the force generated during the sliding process. When the position of the balance needs to be adjusted, the operator can manually push the balance along the slide rail. The balance is a key component for accurately measuring the weight of the battery test object. During the test, the weight change of the battery test object is an important monitoring indicator. The battery test object includes but is not limited to battery cells, battery cathodes and cathodes, and battery slurry. As the battery is stored in the oil bath for a longer time and gas production reactions may occur, its weight will change. The balance can measure these weight changes in real time and accurately. The oil bath is used to hold silicone oil, which has good thermal stability and can maintain its chemical and physical properties stable over a wide temperature range. In the battery storage gas production test, it may be necessary to simulate different temperature environments. Silicone oil can meet a variety of test conditions from low temperature to high temperature. Silicone oil is also chemically inert and will not chemically react with the battery test object and the gas it may produce. The gas production test equipment can perform separate temperature control on each oil bath pot, and the oil bath environment can simulate the thermal environment of the battery during actual storage to a certain extent. In actual applications, the battery may be in different temperature environments. The stable temperature environment provided by the oil bath pot helps to study the gas production characteristics of the battery at a specific temperature, and provide more realistic data for battery safety assessment and quality control.

[0035] For ease of understanding, the following describes the process of the method provided by this implementation in combination with the above scenario. Figure 2 , is a flow chart of a method for testing gas production in battery storage in an embodiment of the present application.

[0036] S201, after receiving the oil bath temperature setting information sent by the user end, heating the silicone oil in the oil bath pot according to the oil bath temperature;

[0037] The gas production test equipment is equipped with a special temperature control module, which is closely connected to the oil bath and is responsible for adjusting the temperature of the silicone oil in the oil bath. The temperature control module contains a temperature sensor, a heating element, and a cooling element. The temperature sensor monitors the temperature of the silicone oil in real time and feeds back the temperature data to the controller of the gas production test equipment. The controller compares and analyzes the received feedback temperature data and the target temperature set by the user. If the feedback temperature is lower than the target temperature, the controller will start the heating element to heat the silicone oil, otherwise, it will start the cooling element to cool the silicone oil. Among them, the temperature of the silicone oil in each oil bath can be controlled individually by the controller.

[0038] S202, receiving test parameter data sent by the user end, the test parameter data at least including sampling time, battery test object mass and data storage path;

[0039] The gas production test equipment establishes a connection with the user end through a special communication interface. The user end can be the computer end used by the user. The user can set the sampling time for the battery test object on the user end operation interface. The sampling time refers to the specific time point for collecting relevant data (especially weight data) of the battery test object during the entire test process. Also on the user end operation interface, the user can enter the mass of the battery test object. The user may need to use a balance or other measuring tools to pre-measure the mass of the battery test object according to the actual situation, and enter the accurate value into the corresponding text box. In addition, the user also needs to set the data storage path. The data storage path can be a folder on the local hard disk or a specific location on a network storage device. In order to ensure the security and manageability of the data, encrypted storage can be used.

[0040] S203, after determining that the target battery to be tested is associated with the oil bath and the balance according to a preset method, receiving a start test instruction sent by the user terminal;

[0041] The gas production test equipment may be equipped with a specific fixture and a bracket. The fixture is used to clamp the target battery to be tested, and the bracket is used to hang multiple fixtures, which can be set on the upper part of the oil bath pot. When it is necessary to determine the association between the target battery to be tested and the gas production test equipment, it is necessary to first bind the first identification code on the aviation plug with the number corresponding to the battery to be tested. When the gas production test equipment receives the aviation plug number binding instruction sent by the user through the user end, it will start the internal identification and binding program. First, the device will establish a communication connection with the aviation plug through the aviation plug interface and read the first identification code on the aviation plug. This first identification code can be a unique code, such as a QR code, barcode or digital code generated by a specific coding rule. The software system inside the device will match the read first identification code with the number corresponding to the battery to be tested entered by the user on the operation interface. The software system here can use database management technology to store all battery test object numbers and corresponding aviation plug identification code information in a database. When receiving the binding instruction, the system will search for the corresponding record in the database and perform a matching operation.

[0042] In order to ensure the accuracy of binding, a verification mechanism can be set during the matching process. For example, if the first identification code read does not match the existing record in the database, the system will issue an alarm to prompt the user to check whether the aviation plug or battery test object number is correct. At the same time, in order to improve efficiency, an automatic matching algorithm can be used. After entering the battery test object number, the system can automatically search for possible matching aviation plug identification codes in the database, reducing the time for users to manually search. In addition, for the convenience of management, the binding operation can be recorded. After each successful binding, the system will record the relevant information of the binding, such as binding time, operator, battery test object number and aviation plug identification code, in a log file. In this way, the binding history of each battery test object can be clearly understood during subsequent inquiries and tracing. When the user uses the balance's barcode scanner to scan the second identification code on the fixture, the barcode scanner will transmit the read information to the gas production test equipment. The barcode scanner can use high-precision optical scanning technology to quickly and accurately read the second identification code in the form of a QR code or barcode on the fixture.

[0043] The control system inside the device will parse and process the received second identification code. It will first determine whether the identification code conforms to the coding rules set by the device. If it does, it will search for the target battery test object information corresponding to the identification code in the storage system inside the device. In order to improve the accuracy and reliability of code scanning, the barcode scanner can be equipped with some auxiliary functions. For example, the barcode scanner can have autofocus and optical image stabilization functions to ensure that the identification code can be clearly read under different light and distance conditions. At the same time, in order to avoid mis-scanning, a confirmation button can also be set on the barcode scanner. Only when the user presses the confirmation button will the barcode scanner transmit the read information to the device. In the process of associating the target battery test object with the balance, the device will make some settings and adjustments to the balance. For example, the device will automatically adjust the measurement accuracy, range and other parameters of the balance according to the relevant information of the target battery test object, such as mass range, test requirements, etc., so as to ensure that the balance can provide the most accurate measurement results when measuring the target battery test object.

[0044] Once the user has determined that the target battery under test is associated with the balance and the oil bath, a button or control similar to "Start Test" can be clicked to initiate the test.

[0045] S204, controlling the balance to sample the weight of the target battery to be tested according to the test start instruction at the sampling time, and obtaining a plurality of weight data at a plurality of time points;

[0046] After receiving the test start instruction, the controller of the gas production test equipment will accurately control the measurement operation of the balance according to the preset sampling time sequence. There is a high-precision clock module inside the controller, which can accurately time and ensure that the balance performs weight measurement at each set sampling time point. For example, if the sampling time is set to measure once every 1 hour, the controller will trigger the balance to perform measurement operation at every hour. It is crucial to place the balance in a stable environment. For this purpose, shock-absorbing devices such as rubber shock-absorbing pads or spring shock absorbers are set around the balance. These shock-absorbing devices can effectively absorb external vibrations and prevent vibrations from being transmitted to the balance and affecting the measurement results.

[0047] During the test, the aviation plug not only connects the circuit, but also contains information that can reflect the electrical characteristics of the battery under test. The circuit design inside the aviation plug enables it to be connected to the electrodes of the battery under test in a specific way, which can obtain the voltage signal of the battery under test. The aviation plug then transmits the obtained voltage signal to the gas production test equipment, and the gas production test equipment will send the voltage value to the set area of ​​the display end for display according to the settings and layout of the display end.

[0048] S205, after determining the volume change of the target battery to be tested according to the plurality of weight data, determining the test result according to the volume change, the information corresponding to the target battery to be tested and the oil bath pot;

[0049] Combining Newton's law (Formula 1) and Archimedes' law of buoyancy (Formula 2), the tension of the battery test object in silicone oil is measured in real time by a balance, and the volume of the battery test object is further converted (Formula 3).

[0050] The gravitational acceleration g is 9.8m / s2, 0.971g / ml (25℃), The pulling force of the balance on the battery under test can be obtained from the balance. is the buoyancy of the battery test object on the silicone oil, is the volume of the battery under test.

[0051] When considering the information corresponding to the target battery test object and the oil bath, the temperature of the oil bath is an important factor. This is because the temperature will affect the density of the silicone oil and the state of the gas inside the battery test object. If the temperature of the oil bath changes, the density of the silicone oil will also change, which requires the above volume calculation formula to be corrected. A temperature sensor can be set in the oil bath to monitor the temperature of the oil bath in real time, and then the density of the silicone oil can be updated in real time based on the relationship curve between temperature and silicone oil density. For example, if the temperature increases, the density of the silicone oil will decrease, so the updated silicone oil density value needs to be used when calculating the volume change.

[0052] In addition, the placement of the battery test object in the oil bath may also affect the test results. If the battery test object is placed in different positions of the oil bath, it may be affected by different temperature distributions and heat transfer effects. To avoid this, a uniform heating device can be set in the oil bath to ensure uniform temperature distribution in the oil bath. At the same time, thermal insulation materials can be set around the battery test object to reduce heat loss and uneven distribution.

[0053] S206: The test result is stored according to the data storage path and then sent to the user end for display.

[0054] In terms of data storage, in order to facilitate data management and query, users can name and classify data according to certain rules. For example, data can be named according to information such as test date, battery model, test batch, etc., so that the required data can be located more efficiently when querying data later. In terms of user-side display, it is necessary to ensure that the display is intuitive and easy to understand. Different parameter display contents are determined according to the test results, such as volume change curve, temperature change curve, etc. Professional drawing software or toolkits can be used to draw these curves to make them more beautiful and intuitive. At the same time, the experimental parameters during the test process, such as sampling time, battery test mass, oil bath temperature, etc., can also be displayed on the user side, so that users can better understand the test process and results. In order to improve the user experience, interactive functions can be set, such as users can click on the curve or parameter with the mouse to view more detailed information, such as the specific data value at a certain point in time.

[0055] More specifically, during the test, the weight of the battery to be tested is sampled at different time points by a balance to obtain multiple weight data, and the corresponding volume data is obtained in combination with step S205, and the volume data at different time points are sorted, and the volume change curve is drawn with time as the horizontal axis and volume as the vertical axis. This curve can intuitively reflect the volume change trend of the battery to be tested during the test, and help users understand the volume change caused by battery gas production. During the test, the oil bath pot is used to provide a stable temperature environment for the battery to be tested. A temperature sensor is provided inside the oil bath pot, which can monitor the temperature of the oil bath pot in real time. During the entire test process, the temperature sensor will continuously collect temperature data, and these temperature data will be drawn with time as the horizontal axis and temperature as the vertical axis to draw a temperature change curve. This curve can reflect the temperature change of the oil bath pot during the test, and can also indirectly reflect the temperature environment changes of the battery to be tested. The gas production test equipment will display these experimental parameters in different experimental parameter information areas of the display end according to a certain format.

[0056] In the embodiment of the present application, due to the technical means of receiving the oil bath temperature set by the user to heat the silicone oil, receiving the test parameter data, controlling the balance to sample the weight data according to the sampling time and determining the volume change based on the weight data and combining the oil bath pot information to determine the test result and storing and sending the test result to the user end for display, the technical problems of low efficiency of battery storage gas production test and inaccurate test caused by non-in-situ testing in the prior art are effectively solved, thereby achieving the technical effect of improving the efficiency and accuracy of battery storage gas production test.

[0057] In some embodiments, in order to conduct the test more efficiently, a magnetic structure can be provided on the balance, and the magnetic structure includes an electromagnet, etc., which can fix the fixture by magnetic attraction. The fixture is a component used to clamp the battery to be tested. In order to cooperate with the use of the magnetic structure, the bottom of the fixture and the part that contacts the surface of the balance can be made of magnetic material or coated with a magnetic film, so that the magnetic structure can be used to stably adsorb the fixture. A positioning module and an image acquisition unit are provided on the balance so that the coordinate position of the fixture at the connection part between the balance and the fixture can be photographed and analyzed. The image acquisition unit can be installed at a certain height above the balance, and adjusted by the mounting bracket to ensure that its field of view can completely cover the measuring platform of the balance. The image acquisition unit can also capture the image information of which groove the user places the fixture of the battery to be tested in. After image processing, the position of each battery to be tested can be determined. A plurality of frames with grooves are provided on the oil bath pot, and the shape of the groove matches the bottom of the fixture. The fixture can be placed in the groove for fixing. The frame can be a quadrilateral, which is adapted to the shape of the guide rail at the bottom of the balance block. The user can configure in advance on the display end which battery test objects in which oil bath pot each balance is to measure, and establish the corresponding relationship between the balance and the oil bath pot. During the test, the user selects the target battery test object on the display end, and the control system can automatically drive the balance to move to the corresponding oil bath pot frame according to the preset corresponding relationship. The drive system of the balance includes a motor, a lead screw transmission mechanism, etc., which can drive the balance to move horizontally on the slide rail. After the balance reaches the target position, the magnetic suction structure starts to absorb the fixture in the corresponding groove. After the fixture is adsorbed on the balance, the sensor in the balance can detect the connection of the fixture and establish a data association between the balance and the battery test object. The balance moves back to the initial position, starts the test, and corresponds the test data to the battery test object. After the test is completed, the data association is disconnected. The balance moves to the frame again, drives the magnetic suction structure to put the fixture back in place, and then tests the next battery test object, and repeats until all the measurement items set by the user are completed. In this way, the automatic handling and identification of battery test objects can be realized, and the test efficiency is improved.

[0058] After combining the above embodiments, the method provided by this embodiment is further described in more detail below. Figure 3 , is another flow chart of a method for testing gas production in battery storage in an embodiment of the present application.

[0059] S301, after receiving a user clicking a weight calibration control on the display terminal, sending a confirmation instruction to the display terminal to indicate whether the device is in an unloaded state;

[0060] Before the test, the user can click the weight calibration control on the display. When the gas production test equipment receives the operation instruction of the user clicking the weight calibration control on the display, the gas production test equipment will start the status detection of its various related components. For the balance component, it will activate the sensor system of the balance to perform self-inspection on the balance tray and related mechanical structures. The balance can accurately measure the slight weight changes on the tray, and its measurement accuracy can reach 0.0001g or even higher. By detecting the signal fed back by the balance, the device can preliminarily determine whether the balance is in an empty state. For example, if the weight value fed back by the sensor is within a very small reasonable range (such as ±0.0005g), it can be preliminarily considered that the balance may be in an empty state.

[0061] S302, after receiving the idle state instruction fed back by the display terminal, sending calibration prompt information to the display terminal;

[0062] The control system inside the device will read the preset calibration prompt information template from the storage unit. This template contains detailed calibration step instructions, matters that may need attention during the calibration process, and some guidance information for user operations. The calibration prompt information template is designed according to the specific characteristics and calibration requirements of the device. It can provide users with clear and accurate calibration guidance. After determining that it is in the no-load state, the calibration prompt information is sent to the display end to prompt the user to start weight calibration.

[0063] S303, after receiving a user clicking a calibration confirmation control according to the calibration prompt information, starting the calibration function until the calibration is successful, and sending a calibration success message to the display terminal;

[0064] The user can follow the calibration prompts, hang the weight of the set weight on the bracket inside the device, and then click a control similar to "OK" on the display end, waiting for the device to calibrate until the device prompts "Calibration successful". This can detect and adjust the sensor to ensure that it can accurately sense weight changes.

[0065] S304: Receiving the user's selection of the weight reset control, the weight baseline is reset.

[0066] Before the test begins, the "Real-time Weight" in the data display area should be zero, which means that the balance is in an unloaded state and the measurement reference is correct. If it is not zero, it means that the weight baseline may be deviated. This deviation may be due to the influence of the previous test operation, or there is a problem with the equipment during the initialization process. Resetting the weight baseline is to ensure that the balance can measure with the correct reference in the next test to avoid inaccurate measurement results due to baseline deviation. When the "Reset" control in the menu bar is clicked, the control system inside the device will first look for the current weight baseline setting, and the gas production test equipment will reset it to the default value or user-specified value based on the current weight baseline setting.

[0067] In the embodiment of the present application, the technical means of performing weight calibration before heating the silicone oil, performing the calibration operation after sending a device no-load status confirmation instruction, and receiving a user's selection of a weight reset control to reset the weight baseline are adopted. Therefore, the problem of low reliability of test results caused by inaccurate balance in the prior art is effectively solved, thereby achieving the technical effect of improving the reliability of test data.

[0068] The following describes the gas production test equipment in the embodiment of the present invention from the perspective of hardware processing. Figure 4 , is a schematic diagram of a physical device structure of a gas production test equipment in an embodiment of the present application.

[0069] It should be noted that Figure 4 The structure of the gas production test device shown is only an example and should not bring any limitation to the function and scope of use of the embodiment of the present invention.

[0070] like Figure 4 As shown, the gas production test equipment includes a central processing unit (CPU) 401, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 402 or the program loaded from the storage part 408 to the random access memory (RAM) 403, such as executing the method described in the above embodiment. In RAM 403, various programs and data required for system operation are also stored. CPU 401, ROM 402 and RAM 403 are connected to each other through bus 404. Input / output (I / O) interface 405 is also connected to bus 404.

[0071] The following components are connected to the I / O interface 405: an input section 406 including an audio input device, a button switch, etc.; an output section 407 including a liquid crystal display (LCD) and an audio output device, an indicator light, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the I / O interface 405 as needed. A removable medium 411, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 410 as needed so that a computer program read therefrom is installed into the storage section 408 as needed.

[0072] In particular, according to an embodiment of the present invention, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present invention includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication part 409, and / or installed from a removable medium 411. When the computer program is executed by the central processing unit (CPU) 401, various functions defined in the present invention are performed.

[0073] It should be noted that 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), a 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 the present invention, a 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, apparatus, or device.

[0074] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present invention. Each box in the flowchart or block diagram may represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of a code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the box may also occur in an order different from that marked in the accompanying drawings.

[0075] Specifically, the gas generation test device of this embodiment includes a processor and a memory. The memory stores a computer program. When the computer program is executed by the processor, a battery storage gas generation test method provided in the above embodiment is implemented.

[0076] As another aspect, the present invention further provides a computer-readable storage medium, which may be included in the gas production test device described in the above embodiment; or may exist independently without being assembled into the gas production test device. The above storage medium carries one or more computer programs, and when the above one or more computer programs are executed by a processor of the gas production test device, the gas production test device implements a battery storage gas production test method provided in the above embodiment.

[0077] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0078] As used in the above embodiments, the term "when..." may be interpreted to mean "if..." or "after..." or "in response to determining..." or "in response to detecting...", depending on the context. Similarly, the phrases "upon determining..." or "if (the stated condition or event) is detected" may be interpreted to mean "if determining..." or "in response to determining..." or "upon detecting (the stated condition or event)" or "in response to detecting (the stated condition or event)", depending on the context.

[0079] Those skilled in the art can understand that to implement all or part of the processes in the above-mentioned embodiments, the processes can be completed by computer programs to instruct related hardware, and the programs can be stored in computer-readable storage media. When the programs are executed, they can include the processes of the above-mentioned method embodiments. The aforementioned storage media include: ROM or random access memory RAM, magnetic disk or optical disk and other media that can store program codes.

Claims

1. A method for testing gas generation in battery storage, applied to gas generation testing equipment, characterized in that: The gas production test equipment includes a balance and a plurality of temperature-controllable oil bath pots, the balance is used to measure the weight of the battery to be tested, the balance is provided with a shock absorbing device, the shock absorbing device is used to absorb external vibrations to prevent the vibrations from being transmitted to the balance and affecting the measurement results, the oil bath pot is used to hold silicone oil, the gas production test equipment also includes a fixture and a bracket, the fixture is used to clamp the target battery to be tested, and the bracket is used to hang a plurality of the fixtures, the method includes: After receiving the oil bath temperature setting information sent by the user end, the silicone oil in the oil bath pot is heated according to the oil bath temperature, the temperature of the oil bath pot is monitored in real time, and the density of the silicone oil is updated in real time according to the relationship curve between the temperature and the density of the silicone oil; Receiving test parameter data sent by a user terminal, wherein the test parameter data at least includes sampling time, battery test object mass and data storage path; After receiving the user's aviation plug number binding instruction, bind the first identification code on the aviation plug with the number corresponding to the battery to be tested; After detecting that the user uses a barcode scanner of the balance to scan the second identification code on the fixture, the target battery to be tested is associated with the balance; After determining that the target battery to be tested is associated with the oil bath pot according to a preset method, receiving a start test instruction sent by the user end; According to the start test instruction, the balance is controlled to sample the weight of the target battery to be tested according to the sampling time, and multiple weight data at multiple time points are obtained. During the test, the voltage value of the battery to be tested is determined according to the aviation plug, and the voltage value is displayed in a set area of ​​the display terminal; After determining the volume change of the target battery object to be tested according to the plurality of weight data, determining the test result according to the volume change, the information corresponding to the target battery object to be tested and the oil bath pot; The test results are stored according to the data storage path and then sent to the user end for display.

2. The method according to claim 1, characterized in that After receiving the oil bath temperature setting information sent by the user end, before the step of heating the silicone oil in the oil bath pot according to the oil bath temperature, the method further includes: After receiving a user click on the weight calibration control on the display end, a confirmation instruction is sent to the display end to indicate whether the device is in an empty-load state; After receiving the no-load state instruction fed back by the display terminal, sending calibration prompt information to the display terminal; After receiving the user clicking the calibration confirmation control according to the calibration prompt information, the calibration function is turned on until the calibration is successful, and a calibration success message is sent to the display end.

3. The method according to claim 2, characterized in that After receiving the step of the user clicking the calibration confirmation control according to the calibration prompt information, starting the calibration function until the calibration is successful, and sending the calibration success information to the display end, the method further includes: Upon receiving a user selection of a weight reset control, the weight baseline is reset.

4. The method according to claim 1, characterized in that: The step of storing the test result according to the data storage path and then sending it to the user end for display specifically includes: Determine different parameter display contents according to the test results, wherein the parameter display contents at least include a volume change curve and a temperature change curve; The parameter display content is controlled to be displayed in the graphic area of ​​the display terminal; the experimental parameters in the test process are controlled to be displayed in the experimental parameter information area of ​​the display terminal.

5. The method according to claim 1, characterized in that The gas production testing device further includes a slide rail, and the slide rail is used to connect the balance so that the balance slides on the slide rail.

6. A gas production test device, characterized in that: The gas production test equipment includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to enable the gas production test equipment to perform the method described in any one of claims 1-5.

7. A computer-readable storage medium comprising instructions, characterized in that: When the instructions are executed on a gas-generating test device, the gas-generating test device is caused to perform the method according to any one of claims 1 to 5.

8. A computer program product, characterized in that When the computer program product is run on a gas-generating test device, the gas-generating test device is enabled to perform the method according to any one of claims 1 to 5.

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