Tab welding method, electronic equipment and storage medium

Abstract

The embodiment of the invention discloses a tab welding method, electronic equipment and a storage medium. The tab welding method comprises the steps that process parameters of a to-be-welded tab are obtained; based on the process parameters, heating parameters and welding parameters corresponding to the to-be-welded tabs are calculated; carrying out heating treatment on the to-be-welded tab according to the heating parameters; and according to the welding parameters, carrying out welding treatment on the to-be-welded tab subjected to the heating treatment. According to the tab welding scheme provided by the invention, the tab welding quality and reliability can be improved, and meanwhile, the tab is prevented from being damaged in the welding process, so that the overall performance and safety of the battery are improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular, to a method for welding ear tabs, an electronic device, and a storage medium. Background Art

[0002] In the field of modern battery manufacturing, welding ear tabs is one of the key steps in the battery production process. As the main channel for the battery current to output, the welding quality of the ear tabs is directly related to the performance and safety of the battery.

[0003] Traditional ear tab welding processes mainly use ultrasonic welding technology, and the shape of the welding head is usually hexagonal or circular. When applying pressure in this welding method, it may cause the ear tabs to tear at the current collector contact points, thus affecting the current output and overall performance of the battery. Once the ear tabs are torn, it will not only limit the current output of the battery and reduce the battery performance, but also may cause the battery to overheat internally, increasing the risk of battery explosion, posing a serious threat to personal safety and equipment safety. It can be seen that the existing ear tab welding methods have problems of poor safety and reduced battery performance. Summary of the Invention

[0004] Embodiments of this application provide a method for welding ear tabs, an electronic device, and a storage medium, which can improve the quality and reliability of ear tab welding, and at the same time avoid damaging the ear tabs during the welding process, thereby enhancing the overall performance and safety of the battery.

[0005] Embodiments of this application provide a method for welding ear tabs, including:

[0006] Obtaining the process parameters of the ear tabs to be welded;

[0007] Based on the process parameters, calculating the heating parameters and welding parameters corresponding to the ear tabs to be welded;

[0008] Performing a heating treatment on the ear tabs to be welded according to the heating parameters;

[0009] Performing a welding treatment on the ear tabs to be welded after the heating treatment according to the welding parameters.

[0010] Optionally, in some embodiments of this application, the obtaining the process parameters of the ear tabs to be welded includes:

[0011] Obtaining the model information of the ear tabs to be welded;

[0012] Based on the model information, determining the number of ear tab layers, the thickness of the current collector, and the welding area of the ear tabs to be welded.

[0013] Optionally, in some embodiments of this application, the calculating the heating parameters and welding parameters corresponding to the ear tabs to be welded based on the process parameters includes:

[0014] Calculate the heating parameters corresponding to the ear to be welded based on the process parameters;

[0015] Calculate the welding parameters corresponding to the ear to be welded based on the process parameters and the heating parameters.

[0016] Optionally, in some embodiments of the present application, the calculating the heating parameters corresponding to the ear to be welded based on the process parameters includes:

[0017] Calculate the preheating distance corresponding to the ear to be welded based on the number of ear layers and the thickness of the current collector;

[0018] Calculate the heating area of the ear to be welded based on the welding area;

[0019] Calculate the heating duration corresponding to the ear to be welded based on the number of ear layers, the thickness of the current collector, and the heating area;

[0020] Calculate the heating temperature corresponding to the ear to be welded based on the number of ear layers, the thickness of the current collector, the heating area, and the heating duration.

[0021] Optionally, in some embodiments of the present application, the calculating the preheating distance corresponding to the ear to be welded based on the number of ear layers and the thickness of the current collector includes:

[0022] Calculate the preheating distance corresponding to the ear to be welded based on the number of ear layers and the thickness of the current collector using the preheating distance calculation formula, where the preheating distance calculation formula is H = x1×n×δ, H is the preheating distance, x1 is the first constant coefficient, n is the number of ear layers, and δ is the thickness of the current collector.

[0023] Optionally, in some embodiments of the present application, the calculating the heating duration corresponding to the ear to be welded based on the number of ear layers, the thickness of the current collector, and the heating area includes:

[0024] Calculate the heating duration corresponding to the ear to be welded based on the number of ear layers, the thickness of the current collector, and the heating area using the heating duration calculation formula, where the heating duration calculation formula is T = x2×n×δ×A, T is the heating duration, x2 is the second constant coefficient, n is the number of ear layers, δ is the thickness of the current collector, and A is the heating area.

[0025] Optionally, in some embodiments of the present application, the calculating the heating temperature corresponding to the ear to be welded based on the number of ear layers, the thickness of the current collector, the heating area, and the heating duration includes:

[0026] Based on the number of tab layers, the thickness of the current collector, the heating area, and the heating duration, calculate the heating temperature corresponding to the tab to be welded using the heating temperature calculation formula. Among them, the heating temperature calculation formula is K = x3 × n × δ × A / (H × T), where K is the heating temperature, x3 is the third constant coefficient, n is the number of tab layers, δ is the thickness of the current collector, A is the heating area, and T is the heating duration.

[0027] Optionally, in some embodiments of the present application, calculating the welding parameters corresponding to the tab to be welded based on the process parameters and the heating parameters includes:

[0028] Based on the number of tab layers, the thickness of the current collector, the heating area, the heating duration, and the heating temperature, calculate the welding power corresponding to the tab to be welded.

[0029] Optionally, in some embodiments of the present application, calculating the welding power corresponding to the tab to be welded based on the number of tab layers, the thickness of the current collector, the heating area, the heating duration, and the heating temperature includes:

[0030] Use the welding power calculation formula to calculate the welding power corresponding to the tab to be welded based on the number of tab layers, the thickness of the current collector, the heating area, the heating duration, and the heating temperature. Among them, the welding power calculation formula is P = x3 × n × δ × A / (K × T), where P is the welding power, x3 is the third constant coefficient, n is the number of tab layers, δ is the thickness of the current collector, A is the heating area, T is the heating duration, and K is the heating temperature.

[0031] Optionally, in some embodiments of the present application, heating the tab to be welded according to the heating parameters includes:

[0032] Adjust the distance between the welding head and the base to the preheating distance;

[0033] Control the welding head to heat the heating area of the tab to be welded at the heating temperature for the heating duration.

[0034] Optionally, in some embodiments of the present application, welding the tab to be welded after heating according to the welding parameters includes:

[0035] Control the welding head to work according to the welding power;

[0036] Weld the tab to be welded after heating through the welding head.

[0037] Optionally, in some embodiments of the present application, it further includes:

[0038] Perform quality inspection on the tab after welding treatment to obtain the inspection results;

[0039] Perform statistical analysis on multiple said inspection results to obtain the analysis results;

[0040] Adjust the welding tool and welding process based on the analysis results.

[0041] Correspondingly, the present application also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. Wherein, when the processor executes the program, it performs the steps of any of the above tab welding methods.

[0042] The present application also provides a computer-readable storage medium. The storage medium stores a computer program, and when the computer program is executed by a processor, it implements the steps of any of the above tab welding methods.

[0043] An embodiment of the present application provides a tab welding method, an electronic device, and a storage medium. After obtaining the process parameters of the tab to be welded, calculate the heating parameters and welding parameters corresponding to the tab to be welded based on the process parameters; then, heat-treat the tab to be welded according to the heating parameters; finally, perform welding treatment on the heat-treated tab to be welded according to the welding parameters. The tab welding solution provided by the present application first designs the heating parameters and welding parameters according to the process parameters of the tab, then preheats and softens the tab according to the heating parameters before welding to increase the toughness of the tab and reduce the risk of tearing caused by the applied pressure during ultrasonic welding. Finally, precise welding is performed according to the welding parameters to improve the quality and reliability of tab welding, reduce the overheating phenomenon inside the battery caused by poor welding, and reduce the risk of battery explosion, thereby improving the overall performance and safety of the battery. It can be seen that the present application can improve the quality and reliability of tab welding, and at the same time avoid damaging the tab during the welding process, thereby enhancing the overall performance and safety of the battery. Description of the Drawings

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0045] Figure 1 is a schematic flowchart of the tab welding method provided by the embodiment of the present application;

[0046] Figure 2 is a schematic structural diagram of the electronic device provided by the embodiment of the present application. Detailed Embodiments

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0048] The embodiments of the present application provide a tab welding method, device, electronic device, and storage medium.

[0049] Among them, the tab welding device can be specifically integrated in a terminal. The terminal can include a tablet computer or a personal computer (PC). The terminal can establish a wired or wireless connection with a server. The server can include an independently operating server or a distributed server, or can also include a server cluster composed of multiple servers.

[0050] The following will be described in detail respectively. It should be noted that the description order of the following embodiments does not limit the priority order of the embodiments.

[0051] A tab welding method includes: obtaining the process parameters of the tab to be welded; calculating the heating parameters and welding parameters corresponding to the tab to be welded based on the process parameters; performing a heating process on the tab to be welded according to the heating parameters; and performing a welding process on the heated tab to be welded according to the welding parameters.

[0052] Please refer to Figure 1 , Figure 1 which is a schematic flow chart of the tab welding method provided by the embodiments of the present application. The specific process of this tab welding method can be as follows:

[0053] 101. Obtain the process parameters of the tab to be welded.

[0054] Specifically, before welding, it is first necessary to obtain the relevant process parameters of the tab to be welded, including the model information of the tab, the number of tab layers, the thickness of the current collector, and the welding area, etc. Through the model information, the specific specifications and material characteristics of the tab can be found and determined, which is crucial for the subsequent welding process, ensuring that all parameters in the welding process are set based on actual process requirements and avoiding welding defects caused by parameter mismatches.

[0055] Optionally, in some embodiments, step 101 "obtain the process parameters of the tab to be welded" can specifically include:

[0056] Obtain the model information of the tab to be welded;

[0057] Specifically, the model information usually includes the tab specifications, material types, design parameters, etc. These information can be obtained from product documents, databases, or directly from the markings on the tabs. The model information is the basis for determining the welding process parameters of the tabs. Different models of tabs may require different welding conditions. Ensuring that the welding process parameters match the specific characteristics of the tabs provides accurate data support for the subsequent welding process.

[0058] Based on the model information, determine the tab layer number, current collector thickness, and welding area of the tabs to be welded;

[0059] Specifically, according to the model information, determine the specific structural parameters of the tabs, such as the layer number, current collector thickness, and welding area. Among them, the tab layer number affects the heat distribution and pressure bearing during welding; the current collector thickness affects the penetration depth and heat absorption of welding; the welding area is directly related to the welding contact surface and heat transfer efficiency. In addition, a database system can be constructed to store the parameters of different models of tabs, and the corresponding welding parameters can be automatically retrieved through the model to achieve the automation and standardization of the welding process. Through precise parameter determination, the welding process can be optimized, welding defects can be reduced, and the reliability and consistency of the welded joints can be improved.

[0060] 102. Based on the process parameters, calculate the heating parameters and welding parameters corresponding to the tabs to be welded.

[0061] Specifically, according to the obtained process parameters, calculate the heating parameters (such as preheating distance, heating duration, heating temperature, etc.) and welding parameters (such as welding power, welding time, etc.). The calculation of heating parameters and welding parameters can use preset formulas or algorithms to ensure precise control of the welding process. Through scientific calculation, ensure uniform heat and pressure distribution during welding, reduce the occurrence of welding defects, and improve welding quality.

[0062] Optionally, in some embodiments, step 102, "Based on the process parameters, calculate the heating parameters and welding parameters corresponding to the tabs to be welded", may specifically include:

[0063] Based on the process parameters, calculate the heating parameters corresponding to the tabs to be welded;

[0064] Specifically, use process parameters such as tab layer number, current collector thickness, and welding area to calculate the heating parameters corresponding to the tabs to be welded. The heating parameters include preheating distance, heating area, heating duration, and heating temperature, etc.

[0065] Based on the process parameters and heating parameters, calculate the welding parameters corresponding to the tabs to be welded;

[0066] Specifically, use parameters such as tab layer number, current collector thickness, heating area, heating duration, and heating temperature to calculate the welding power.

[0067] Optionally, in some embodiments, based on process parameters, heating parameters corresponding to the tab to be welded are calculated, which may specifically include:

[0068] Based on the number of tab layers and the thickness of the current collector, the preheating distance corresponding to the tab to be welded is calculated;

[0069] Specifically, the preheating distance is calculated according to the number of tab layers and the thickness of the current collector. The calculation formula for the preheating distance (H) is: H = x1 × n × δ, where x1 is a coefficient, usually between 0.9 and 1.1, n is the number of tab layers, and δ is the thickness of the current collector. The number of tab layers is usually 2 - 150 layers, the thickness range of the positive current collector is 5 - 12 μm, the thickness range of the negative current collector is 2 - 5 μm, and the height of the welding head and the distance between the bases are proportional to the total thickness of the tabs.

[0070] By determining the initial distance between the welding head and the base, a suitable preheating environment is provided for the tab during the heating process. This ensures a uniform heat distribution on the tab during preheating and reduces welding defects caused by uneven preheating.

[0071] Based on the welding area, the heating area of the tab to be welded is calculated;

[0072] Specifically, the heating area required for this welding is calculated according to the welding area. The welding area is 12 - 24 mm in length and 2 - 15 mm in width. The heating area (A) is usually 1 to 1.3 times the welding area, ensuring uniform heat distribution during welding and covering the edges of the welding area. By precisely controlling the heating area, the temperature uniformity in the welding area can be improved and welding defects can be reduced.

[0073] Based on the number of tab layers, the thickness of the current collector, and the heating area, the heating duration corresponding to the tab to be welded is calculated;

[0074] Specifically, the heating duration (T) is calculated based on the number of tab layers (n), the thickness of the current collector (δ), and the heating area (A). The calculation formula for the heating duration (T) is: T = x2 × n × δ × A, where x2 is a coefficient, the heating duration is 20 - 60 s, and the heating duration is proportional to the total thickness of the tabs and the heating area. The precise heating duration ensures that the tab material is fully preheated while avoiding overheating and improving the quality of the welded joint.

[0075] Based on the number of tab layers, the thickness of the current collector, the heating area, and the heating duration, the heating temperature corresponding to the tab to be welded is calculated;

[0076] Specifically, according to the number of tab layers, the thickness of the current collector, the heating area, and the heating duration, the heating temperature is calculated. The calculation formula for the heating temperature (K) is: K = x3 × n × δ × A / (H × T), where x3 is a coefficient, and the heating temperature is usually 200 - 500 °C. Ensuring that the tabs reach the optimal preheating state before welding provides the necessary temperature conditions for high-quality welding.

[0077] Optionally, in some embodiments, based on the process parameters and heating parameters, the welding parameters corresponding to the tabs to be welded are calculated, which may specifically include:

[0078] Based on the number of tab layers, the thickness of the current collector, the heating area, the heating duration, and the heating temperature, the welding power corresponding to the tabs to be welded is calculated;

[0079] Specifically, according to the calculated number of tab layers, the thickness of the current collector, the heating area, the heating duration, and the heating temperature, the welding power is calculated. The calculation formula for the welding power is: P = x3 × n × δ × A / (K × T), and the welding power is usually 1000W - 18000W.

[0080] 103. Heat-treat the tabs to be welded according to the heating parameters.

[0081] Specifically, before welding, according to the calculated heating parameters, the tabs to be welded are heat-treated, including adjusting the distance between the welding head and the base to the preheating distance, and controlling the welding head to reach the set heating temperature within the heating area and continuously heating for the specified duration. The purpose of the heat treatment is to soften the tab material and improve its toughness to reduce the risk of tearing during welding. Through the heat treatment, the toughness of the tabs is enhanced, and it is easier to form a good welding joint during welding, reducing the probability of tearing and welding defects.

[0082] Optionally, in some embodiments, step 103 "Heat-treat the tabs to be welded according to the heating parameters" may specifically include:

[0083] Adjust the distance between the welding head and the base to the preheating distance;

[0084] Specifically, before starting the heating, according to the previously calculated preheating distance (H), the distance between the welding head and the base is adjusted to ensure that the tabs can be heated at an appropriate distance. By precisely controlling the distance between the welding head and the base, it can be ensured that the tabs are uniformly heated during the heating process, reducing the risk of poor welding.

[0085] Control the welding head to heat the heating area of the tabs to be welded according to the heating temperature for the continuous heating duration;

[0086] Specifically, the heating area (A) of the tab is heated using a welding head, and the heating temperature (K) and heating duration (T) are maintained to preheat and soften the tab. Precise temperature and time control helps ensure that the tab material reaches an ideal preheated state before welding, thereby improving the quality of the welded joint and the stability of the welding process.

[0087] 104. Weld the tab to be welded after the heat treatment according to the welding parameters.

[0088] Specifically, after the heat treatment is completed, welding is carried out according to the calculated welding parameters, including controlling the welding head to work at the set welding power and welding the heat-treated tab using the welding head. The welding process requires precise control of the welding time and power to ensure the quality of the welded joint. Ensure the stability and consistency of the welding process, thereby improving the strength and electrical conductivity of the welded joint and ensuring the overall performance of the battery.

[0089] Optionally, in some embodiments, step 104, "Weld the tab to be welded after the heat treatment according to the welding parameters", may specifically include:

[0090] Control the welding head to work according to the welding power;

[0091] Specifically, after the tab has been preheated, the welding head is used to perform a welding operation according to the calculated welding power (P). The welding power is a key parameter in the welding process, directly affecting the formation quality and welding efficiency of the welded joint. Precise control of the welding power helps form a uniform and firm welded joint, reduce welding defects, and improve the welding quality.

[0092] In addition, a real-time monitoring system can be integrated to monitor the working state of the welding head and the actual power during the welding process to ensure precise control of the welding power. Or an adaptive control technology can be adopted to dynamically adjust the welding power according to the feedback signal during the welding process to adapt to changes in material properties and welding conditions.

[0093] Weld the tab to be welded after the heat treatment using the welding head;

[0094] Specifically, on the basis of controlling the welding power, the welding head is used to perform an actual welding operation on the preheated tab. The welding process requires precise control of the welding time, pressure, and position to ensure the consistency and reliability of the welded joint. Automated and precise control of the welding process helps improve the welding efficiency and quality, reduce human operation errors, and improve production efficiency.

[0095] In addition, robotic automation technology can be adopted to achieve precise positioning and movement control of the welding head, improving the automation level of the welding process. A vision system is introduced to assist the welding process, and the welding state is monitored in real time through image recognition technology to ensure the accuracy of the welding position.

[0096] Optionally, in some embodiments, the tab welding method may specifically further include:

[0097] Perform quality inspection on the tabs after welding treatment to obtain inspection results;

[0098] Specifically, after welding is completed, a series of quality inspections are carried out on the welded tabs to verify whether the welding quality meets the predetermined standards. The inspections can include appearance inspection (such as cracks, deformation), electrical performance testing (such as resistance, current), mechanical strength testing (such as tensile force, bending), etc. In the actual process, an automated vision inspection system can be used to automatically detect surface defects in the welding area using a high-resolution camera and image processing software. Non-destructive testing techniques, such as X-ray inspection and ultrasonic inspection, are introduced to check the internal quality of the welded joints. By performing quality inspection on the tabs after welding treatment, welding defects can be detected in a timely manner, reducing the flow of defective products into the market and improving the reliability and safety of the products.

[0099] Perform statistical analysis on multiple inspection results to obtain analysis results;

[0100] Specifically, collect quality inspection data within a certain period, and use statistical analysis methods, such as control charts, failure analysis, etc., to identify abnormalities and trends in the welding process. Big data analysis and machine learning algorithms can also be used to deeply analyze the inspection results to predict and prevent potential welding problems. Statistical analysis helps to understand the stability and consistency of the welding process and provides data support for continuous improvement.

[0101] Adjust the welding tools and welding process based on the analysis results;

[0102] Specifically, according to the results of statistical analysis, adjust the welding tools (such as welding heads, heaters) and welding process parameters to optimize the welding process and improve the welding quality. For example, implement a closed-loop control system to automatically adjust the welding parameters according to the analysis results to achieve adaptive control of the welding process. By adjusting the welding tools and processes, the welding quality can be continuously improved, welding defects can be reduced, and production efficiency can be increased.

[0103] To facilitate understanding of the tab welding method provided in this application, this embodiment also provides a specific implementation manner of the tab welding method, and the specific process is as follows:

[0104] 1. Determine tab parameters

[0105] First, it is necessary to determine the number of tabs, the thickness of the current collector, and the welding area. Suppose we have a negative tab with the following parameters: number of tab layers (n): 42 layers; current collector thickness (δ): 5 μm; welding area: 16 mm × 5 mm.

[0106] 2. Preheating step

[0107] The tab needs to be preheated and softened before welding. The calculation formula for the preheating distance H is: The calculation formula for the preheating distance (H) is: H = x1 × n × δ; where x1 is a coefficient, usually between 0.9 and 1.1. Suppose x1 is selected as 1.0, then the preheating distance H is: H = 1.0 × 42 × 5 μm = 210 μm.

[0108] 3. Heating step

[0109] Next, it is necessary to determine the heating duration T and the heating area A. The calculation formula for the heating duration T is: T = x2 × n × δ × A; Suppose x2 is also a coefficient, and x2 is selected as 1.0. The heating area A is 1.1 times the welding area, that is:

[0110] A = 1.1 × (16 mm × 5 mm) = 17 mm × 6 mm

[0111] Then the heating duration T is:

[0112] T = 1.0 × 42 × 5 μm × 17 mm × 6 mm; The calculation result is 45 seconds.

[0113] 4. Determine the heating temperature

[0114] The calculation formula for the heating temperature K is: K = x3 × n × δ × A / (H × T);

[0115] Suppose x3 is 1.0, substitute the known values, and calculate the heating temperature K. The calculation result is 500 °C.

[0116] 5. Welding step

[0117] Finally, it is necessary to determine the welding power P. The calculation formula for the welding power P is:

[0118] P = x3 × n × δ × A / (K × T); Substitute the known values and calculate the welding power P. Suppose the calculation result is 8000 W.

[0119] 6. Perform welding

[0120] After the above parameters are determined, start the welding process. Adjust the distance between the welding head and the base to 210 μm, start heating, the heating time is 45 seconds, the heating area is 17 mm × 6 mm, the heating temperature is 500 °C, and weld at a power of 8000 W.

[0121] 7. Quality inspection

[0122] After welding is completed, quality inspection is carried out on the welded tab to ensure that the welding quality meets the predetermined standard, and the tearing defect rate is reduced to 0.06%.

[0123] The embodiment of the present application provides a tab welding method. First, heating parameters and welding parameters are designed according to the process parameters of the tab. Then, before welding, the tab is preheated and softened according to the heating parameters to increase the toughness of the tab and reduce the tearing risk caused by the applied pressure during ultrasonic welding. Finally, precise welding is carried out according to the welding parameters to improve the quality and reliability of tab welding, reduce the overheating phenomenon inside the battery caused by poor welding, and reduce the risk of battery explosion, thereby improving the overall performance and safety of the battery.

[0124] In addition, the embodiment of the present application also provides an electronic device, such as Figure 2 shown, which shows a schematic structural diagram of the electronic device involved in the embodiment of the present application. Specifically:[[]]END]]

[0125] The electronic device may include a processor 301 with one or more processing cores, a memory 302 with one or more computer-readable storage media, a power supply 303, an input unit 304 and other components. Those skilled in the art can understand that Figure 2 the structural diagram of the electronic device shown in does not constitute a limitation on the electronic device, and may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements. Among them:[[]]END]]

[0126] The processor 301 is the control center of the electronic device, connecting various parts of the entire electronic device through various interfaces and lines. By running or executing software programs and / or modules stored in the memory 302, and calling data stored in the memory 302, the processor 301 executes various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. Optionally, the processor 301 may include one or more processing cores; preferably, the processor 301 may integrate an application processor and a modulation and demodulation processor. Among them, the application processor mainly processes the operating system, user interface and application programs, etc., and the modulation and demodulation processor mainly processes wireless communication. It can be understood that the above modulation and demodulation processor may not be integrated into the processor 301 either.[[]]END]]

[0127] The memory 302 can be used to store software programs and modules. The processor 301 executes various functional applications and tab welding by running the software programs and modules stored in the memory 302. The memory 302 mainly includes a program storage area and a data storage area. Among them, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the electronic device. In addition, the memory 302 can include high-speed random access memory and can also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices. Correspondingly, the memory 302 can also include a memory controller to provide the processor 301 with access to the memory 302.

[0128] The electronic device further includes a power supply 303 for powering each component. Preferably, the power supply 303 can be logically connected to the processor 301 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. The power supply 303 can also include any components such as one or more DC or AC power supplies, a recharge system, a power failure detection circuit, a power converter or inverter, and a power status indicator.

[0129] The electronic device may further include an input unit 304, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.

[0130] Although not shown, the electronic device may further include a display unit, etc., which will not be elaborated here. Specifically, in this embodiment, the processor 301 in the electronic device will load the executable files corresponding to the processes of one or more application programs into the memory 302 according to the following instructions, and the processor 301 will run the application programs stored in the memory 302 to implement various functions as follows:

[0131] Obtain the process parameters of the tab to be welded; calculate the heating parameters and welding parameters corresponding to the tab to be welded based on the process parameters; perform a heating process on the tab to be welded according to the heating parameters; perform a welding process on the heated tab to be welded according to the welding parameters.

[0132] For the specific implementation of each of the above operations, reference can be made to the previous embodiments, which will not be elaborated here.

[0133] The tab welding solution provided by this application first designs heating parameters and welding parameters according to the process parameters of the tab, then preheats and softens the tab according to the heating parameters before welding to increase the toughness of the tab and reduce the risk of tearing caused by the applied pressure during ultrasonic welding. Finally, precise welding is performed according to the welding parameters to improve the quality and reliability of tab welding, reduce the phenomenon of overheating inside the battery caused by poor welding, and reduce the risk of battery explosion, thereby improving the overall performance and safety of the battery.

[0134] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructions or by controlling relevant hardware through instructions. The instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0135] For this reason, an embodiment of this application provides a storage medium that stores multiple instructions that can be loaded by a processor to execute the steps in any tab welding method provided by the embodiment of this application. For example, the instructions can execute the following steps:

[0136] Obtain the process parameters of the tab to be welded; based on the process parameters, calculate the heating parameters and welding parameters corresponding to the tab to be welded; perform a heating process on the tab to be welded according to the heating parameters; perform a welding process on the heated tab to be welded according to the welding parameters.

[0137] For the specific implementation of each of the above operations, reference can be made to the previous embodiments, which will not be elaborated here.

[0138] Among them, the storage medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc.

[0139] Since the instructions stored in the storage medium can execute the steps in any tab welding method provided by the embodiment of this application, the beneficial effects that can be achieved by any tab welding method provided by the embodiment of this application can be realized. For details, refer to the previous embodiments, which will not be elaborated here.

[0140] The above has introduced in detail a tab welding method, device, electronic device, and storage medium provided by the embodiment of this application. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application; at the same time, for those skilled in the art, according to the idea of this application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

1. A method for welding a tab, characterized in that: include: Obtaining process parameters of the electrode tab to be welded; Based on the process parameters, calculating heating parameters and welding parameters corresponding to the electrode tab to be welded; Performing a heating treatment on the electrode tab to be welded according to the heating parameters; The electrode tab to be welded after the heating treatment is welded according to the welding parameters.

2. The tab welding method according to claim 1, characterized in that: The step of obtaining the process parameters of the electrode tab to be welded includes: Obtaining the model information of the electrode tab to be welded; Based on the model information, the number of tab layers, the thickness of the current collector and the welding area of ​​the tab to be welded are determined.

3. The tab welding method according to claim 2, characterized in that: The step of calculating heating parameters and welding parameters corresponding to the electrode tab to be welded based on the process parameters includes: Based on the process parameters, calculating the heating parameters corresponding to the electrode tab to be welded; Based on the process parameters and the heating parameters, the welding parameters corresponding to the electrode tab to be welded are calculated.

4. The tab welding method according to claim 3, characterized in that: The step of calculating the heating parameters corresponding to the electrode tab to be welded based on the process parameters includes: Based on the number of tab layers and the thickness of the current collector, calculating the preheating distance corresponding to the tab to be welded; Based on the welding area, calculating the heating area of ​​the electrode tab to be welded; Calculating the heating time corresponding to the electrode tab to be welded based on the number of electrode tab layers, the thickness of the current collector and the heating area; The heating temperature corresponding to the electrode tab to be welded is calculated based on the number of electrode tab layers, the thickness of the current collector, the heating area and the heating time.

5. The tab welding method according to claim 4, characterized in that: The calculating the preheating distance corresponding to the electrode tab to be welded based on the number of electrode tab layers and the thickness of the current collector includes: The preheating distance calculation formula is used to calculate the preheating distance corresponding to the electrode tab to be welded based on the number of electrode tab layers and the thickness of the current collector, wherein the preheating distance calculation formula is H=x1×n×δ, H is the preheating distance, x1 is the first constant coefficient, n is the number of electrode tab layers, and δ is the thickness of the current collector.

6. The tab welding method according to claim 4, characterized in that: The step of calculating the heating time corresponding to the electrode tab to be welded based on the number of electrode tab layers, the thickness of the current collector and the heating area includes: The heating time calculation formula is used to calculate the heating time corresponding to the electrode ear to be welded based on the number of electrode ear layers, the thickness of the collector and the heating area, wherein the heating time calculation formula is T=x2×n×δ×A, T is the heating time, x2 is the second constant coefficient, n is the number of electrode ear layers, δ is the thickness of the collector, and A is the heating area.

7. The tab welding method according to claim 4, characterized in that: The step of calculating the heating temperature corresponding to the electrode tab to be welded based on the number of electrode tab layers, the thickness of the current collector, the heating area and the heating time comprises: The heating temperature calculation formula is used to calculate the heating temperature corresponding to the electrode tab to be welded based on the number of electrode tab layers, the thickness of the collector, the heating area and the heating time, wherein the heating temperature calculation formula is K=x3×n×δ×A / (H×T), K is the heating temperature, x3 is the third constant coefficient, n is the number of electrode tab layers, δ is the thickness of the collector, A is the heating area, and T is the heating time.

8. The tab welding method according to claim 4, characterized in that: The step of calculating the welding parameters corresponding to the electrode tab to be welded based on the process parameters and the heating parameters includes: The welding power corresponding to the electrode tab to be welded is calculated based on the number of electrode tab layers, the thickness of the current collector, the heating area, the heating time and the heating temperature.

9. The tab welding method according to claim 8, characterized in that: The calculating the welding power corresponding to the electrode tab to be welded based on the number of electrode tab layers, the thickness of the current collector, the heating area, the heating time and the heating temperature includes: The welding power calculation formula is used to calculate the welding power corresponding to the electrode tab to be welded based on the number of electrode tab layers, the thickness of the collector, the heating area, the heating time and the heating temperature, wherein the welding power calculation formula is P=x3×n×δ×A / (K×T), P is the welding power, x3 is the third constant coefficient, n is the number of electrode tab layers, δ is the thickness of the collector, A is the heating area, T is the heating time, and K is the heating temperature.

10. The tab welding method according to claim 4, characterized in that: The step of heating the electrode tab to be welded according to the heating parameters comprises: Adjust the distance between the welding head and the base to the preheating distance; The welding head is controlled to heat the heating area of ​​the electrode ear to be welded according to the heating temperature and for the heating time.

11. The tab welding method according to claim 8, characterized in that: The step of welding the electrode tab to be welded after the heating treatment according to the welding parameters comprises: Controlling the welding head to work according to the welding power; The electrode tab to be welded after the heating treatment is welded by a welding head.

12. The tab welding method according to any one of claims 1 to 11, characterized in that: Also includes: Perform quality inspection on the welding lugs to obtain the inspection results; Performing statistical analysis on a plurality of the detection results to obtain analysis results; Adjustments are made to the welding tool and welding process based on the analysis results.

13. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the steps of the tab welding method according to any one of claims 1 to 12 are implemented.

14. A computer-readable storage medium, characterized in that: A computer program is stored thereon, wherein when the computer program is executed by a processor, the steps of the tab welding method according to any one of claims 1 to 12 are implemented.

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