Method and apparatus for preparing aa lithium-ion battery, device and medium

Abstract

To provide a manufacturing method and a manufacturing device of a lithium ion battery for improving safety of the battery.SOLUTION: The battery core of the battery is obtained through a battery core manufacturing process, the quality and performance of the battery core are ensured to meet design requirements through a standardized battery core manufacturing process, a basic assembly is provided for subsequent battery assembly, a steel for manufacturing the battery is selected, and the steel is stamped to obtain an upper steel shell of the battery; SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This application relates to the technical field of battery manufacturing, and in particular to methods, apparatus, devices and media for manufacturing AA-size lithium-ion batteries. [Background technology]

[0002] Currently, AA-type lithium-ion batteries are widely used in portable electronic devices due to their advantages such as high energy density and long cycle life. However, problems such as complex manufacturing processes and low yields remain, limiting further development of the industry. The traditional manufacturing process for AA-type batteries mainly uses a soft-wrapped core, which is welded with a step-down circuit and then packed into a steel shell. This makes large-scale mass production difficult and requires a special charger.

[0003] The above-mentioned conventional technical solutions have the following shortcomings: The conventional manufacturing methods are lacking in process control, production efficiency, and product quality, which makes it difficult to ensure the safety of the battery, and there is room for improvement. Summary of the Invention [Problem to be solved by the invention]

[0004] In order to improve the safety of lithium ion batteries, the present application provides a method, apparatus, device and medium for manufacturing AA-type lithium ion batteries. [Means for solving the problem]

[0005] The above-mentioned inventive object of the present application is achieved by the following technical solutions.

[0006] A method for manufacturing an AA-size lithium ion battery, comprising: Obtaining a battery core of a battery manufactured from a battery core manufacturing process; selecting a steel for manufacturing the battery and stamping the steel to obtain an upper steel shell of the battery; obtaining user needs and property parameters of a leaf spring, and determining bending parameters of the leaf spring based on the user needs and the property parameters of the leaf spring; According to the bending parameters of the leaf springs, assemble the PCB board and the upper steel shell of the battery, bend the negative leaf spring on the side of the PCB board toward the battery core, so that the negative leaf spring and the upper steel shell are in elastic contact, and bend the positive leaf spring on the bottom of the PCB board toward the battery core, so that the positive leaf spring and the top of the battery core are in elastic contact, thereby obtaining a complete step-down charging terminal; fitting the complete step-down charging terminal to the battery core to obtain the semi-finished battery, wherein an insulating gasket is provided between the complete step-down charging terminal and the battery core; The semi-finished battery product is rolled and fixed along the roll groove of the battery core, and an insulating film is fitted on the outside of the rolled and fixed semi-finished battery product to obtain the finished battery product.

[0007] According to the above technical solution, the battery core of the battery is obtained through the battery core manufacturing process, and the standardized battery core manufacturing process ensures that the quality and performance of the battery core meets the design requirements, providing the basic assembly for the subsequent battery assembly; selecting steel to manufacture the battery, stamping steel to obtain the upper steel shell of the battery; selecting and stamping appropriate steel to form the upper steel shell of the battery, providing mechanical protection and structural support for the battery core and ensuring that the battery core is isolated from the external environment; obtaining the user needs and the property parameters of the leaf spring; determining the bending parameters of the leaf spring according to the user needs and the property parameters of the leaf spring; accurately determining the bending angle and shape of the leaf spring according to the user needs and the analysis of the physical properties of the leaf spring, so as to achieve the expected electrical connection and mechanical performance; assembling the PCB board and the upper steel shell of the battery according to the bending parameters of the leaf spring; and attaching the negative leaf spring on the side of the PCB board downwards. The positive leaf spring at the bottom of the PCB board is bent downwards to make elastic contact between the negative leaf spring and the upper steel shell, and the positive leaf spring at the bottom of the PCB board is bent downwards to make elastic contact between the positive leaf spring and the top of the battery core, thereby obtaining a complete step-down charging terminal. The bent leaf spring is then assembled with the PCB board and the upper steel shell to form the main electrical connection, ensuring accurate connection between the positive and negative electrodes of the battery and the circuit on the PCB board. By accurately bending the leaf spring, elastic contact with the upper steel shell of the battery and the top of the battery core is achieved, forming a stable electrical connection and simultaneously achieving the functions of step-down and charging the battery. The complete step-down charging terminal is then fitted onto the battery core to obtain a semi-finished battery. The terminal assembly is then fitted onto the battery core to complete the assembly of the semi-finished battery and lay the foundation for final battery encapsulation and testing. The semi-finished battery is then rolled and fixed along the roll grooves of the battery core, and an insulating film is fitted onto the outside of the rolled and fixed semi-finished product to obtain a finished battery. The roll-fixing ensures the structural stability of the battery assembly and the reliability of the electrical connection.An insulating film is applied to provide additional electrical insulation and environmental protection, completing the final encapsulation of the battery and making it a finished product ready for practical application.

[0008] In this application, the AA lithium ion battery is a 1.5V constant voltage lithium ion battery.

[0009] In a preferred embodiment, the present application further provides the step of selecting a steel for manufacturing the battery, stamping the steel, and obtaining an upper steel shell of the battery, comprising: acquiring property data of the battery; and identifying steel stamping parameters based on the property data of the battery; and stamping the steel based on the steel stamping parameters to obtain an upper steel shell of the battery.

[0010] According to the above technical solution, the property data of the battery is obtained, the steel stamping parameters are determined based on the property data of the battery, the property data of the battery is analyzed, the appropriate steel type and specifications are selected, and the key parameters during stamping are determined, so that the steel meets the design requirements of the battery while ensuring the feasibility and efficiency of the stamping forming. The steel is stamped according to the steel stamping parameters to obtain the upper steel shell of the battery, and the determined stamping parameters are used to perform the actual stamping process to form it into the upper steel shell of the battery, which achieves the physical shape of the battery housing, provides mechanical protection for the battery core, and ensures the structural integrity of the battery.

[0011] In a preferred example, the present application further provides that a first through hole and a second through hole are formed in the upper steel shell of the battery, the first through hole being formed at one end of the upper steel shell that is closer to the battery core, and the second through hole being formed at one end of the upper steel shell that is farther from the battery core, and the diameter of the first through hole may be larger than the diameter of the second through hole, and the diameter of the first through hole may be larger than 14 mm.

[0012] According to the adoption of the above technical solution, a first through hole and a second through hole are drilled in the upper steel shell of the battery, the first through hole is drilled at the bottom of the upper steel shell, and the second through hole is drilled at the top of the upper steel shell, and the diameter of the first through hole is larger than the diameter of the second through hole, and the diameter of the first through hole is larger than 14 mm.

[0013] In a preferred embodiment, the present application further provides the step of acquiring user needs and property parameters of a leaf spring, and determining bending parameters of the leaf spring based on the user needs and the property parameters of the leaf spring, comprising: inputting the user needs and the property parameters of the leaf spring into a pre-trained bending model for comparative analysis, and obtaining an analysis result; The method may be arranged to include a step of determining bending parameters of the leaf spring based on the analysis results, wherein the bending parameters of the leaf spring include angle parameters and contact surface parameters of the leaf spring.

[0014] According to the adoption of the above technical solution, the user's needs and the property parameters of the leaf spring are input into a pre-trained bending module for comparative analysis to obtain the analysis results; by inputting the user's specific needs and the physical property data of the leaf spring into the trained bending module, the model's predictive ability can be used to analyze the performance of the leaf spring under different conditions; such comparative analysis can provide early feedback on whether the leaf spring design meets the user's needs and provide a basis for subsequent design adjustment; and from the analysis results, the angle parameters and contact surface parameters of the leaf spring can be determined to ensure that the leaf spring achieves the expected performance in actual application.

[0015] In a preferred embodiment, the method for manufacturing the AA lithium ion battery further comprises: Obtaining the property parameters and corresponding bending degree data of the leaf springs of each material, and pre-processing the property parameters and corresponding bending degree data of the leaf springs of each material to obtain a training set; constructing a bending module from a decision tree algorithm, training the bending module for forward propagation and backward propagation using a training set, and optimizing the trained bending module for forward propagation and backward propagation using a genetic algorithm to obtain the pre-trained bending module.

[0016] According to the above technical solution, the property parameters of the leaf springs of each material and the corresponding bending degree data are obtained, the property parameters of the leaf springs of each material and the corresponding bending degree data are pre-processed to obtain a training set, the quality of the training set is ensured, a bending module is constructed using a decision tree algorithm, and the training set is used to train the bending module through forward propagation and backward propagation, and the trained bending module through forward propagation and backward propagation is optimized using a genetic algorithm to obtain a pre-trained bending module, thereby improving the efficiency and accuracy of the leaf spring bending process.

[0017] In a preferred embodiment, the present application further provides a step of identifying bending parameters of the leaf spring based on the analysis result, the bending parameters of the leaf spring including angle parameters and contact surface parameters of the leaf spring, the step comprising: determining bending angles and contact surface parameters from the analysis results based on the user needs and the property parameters of the leaf spring; performing a simulation test on the bending angle and contact surface parameters and obtaining a result of the simulation test; and determining bending angles and contact surface parameters of the leaf spring based on results of the simulation tests.

[0018] By adopting the above technical solution, based on user needs and the property parameters of the leaf spring, the bending angle and contact surface parameters are determined from the analysis results, a simulation test is performed on the bending angle and contact surface parameters, the simulation test results are obtained, and the bending angle and contact surface parameters of the leaf spring are determined based on the simulation test results, thereby improving the reliability and quality of the battery.

[0019] The above-mentioned invention object 2 of the present application is achieved by the following technical solutions.

[0020] An apparatus for manufacturing AA-type lithium-ion batteries, a battery core manufacturing module for manufacturing and obtaining a battery core of the battery from a battery core manufacturing process; a stamping module for selecting a steel for manufacturing the battery and stamping the steel to obtain an upper steel shell of the battery; a bending identification module for obtaining user needs and property parameters of a leaf spring, and identifying bending parameters of the leaf spring based on the user needs and the property parameters of the leaf spring; an assembly module that assembles a PCB board and an upper steel shell of the battery according to the bending parameters of the leaf springs, bends the negative leaf springs on the side of the PCB board toward the battery core, so that the negative leaf springs and the upper steel shell are in elastic contact with each other, and bends the positive leaf springs on the bottom of the PCB board toward the battery core, so that the positive leaf springs and the top of the battery core are in elastic contact with each other, thereby obtaining a complete step-down charging terminal; an outer fitting module for fitting the complete step-down charging terminal to the battery core to obtain the semi-finished battery, wherein an insulating gasket is provided between the complete step-down charging terminal and the battery core; a rolling module for rolling and fixing the semi-finished battery product along the roll groove of the battery core, and for wrapping an insulating film around the outside of the rolled and fixed semi-finished product to obtain the finished battery product.

[0021] According to the above technical solution, the battery core of the battery is obtained through the battery core manufacturing process, and the standardized battery core manufacturing process ensures that the quality and performance of the battery core meets the design requirements, providing the basic assembly for the subsequent battery assembly; selecting steel to manufacture the battery, stamping steel to obtain the upper steel shell of the battery; selecting and stamping appropriate steel to form the upper steel shell of the battery, providing mechanical protection and structural support for the battery core and ensuring that the battery core is isolated from the external environment; obtaining the user needs and the property parameters of the leaf spring; determining the bending parameters of the leaf spring according to the user needs and the property parameters of the leaf spring; accurately determining the bending angle and shape of the leaf spring according to the user needs and the analysis of the physical properties of the leaf spring, so as to achieve the expected electrical connection and mechanical performance; assembling the PCB board and the upper steel shell of the battery according to the bending parameters of the leaf spring; and attaching the negative leaf spring on the side of the PCB board downwards. The positive leaf spring at the bottom of the PCB board is bent downwards to make elastic contact between the negative leaf spring and the upper steel shell, and the positive leaf spring at the bottom of the PCB board is bent downwards to make elastic contact between the positive leaf spring and the top of the battery core, thereby obtaining a complete step-down charging terminal. The bent leaf spring is then assembled with the PCB board and the upper steel shell to form the main electrical connection, ensuring accurate connection between the positive and negative electrodes of the battery and the circuit on the PCB board. By accurately bending the leaf spring, elastic contact with the upper steel shell of the battery and the top of the battery core is achieved, forming a stable electrical connection and simultaneously achieving the functions of step-down and charging the battery. The complete step-down charging terminal is then fitted onto the battery core to obtain a semi-finished battery. The terminal assembly is then fitted onto the battery core to complete the assembly of the semi-finished battery and lay the foundation for final battery encapsulation and testing. The semi-finished battery is then rolled and fixed along the roll grooves of the battery core, and an insulating film is fitted onto the outside of the rolled and fixed semi-finished product to obtain a finished battery. The roll-fixing ensures the structural stability of the battery assembly and the reliability of the electrical connection.An insulating film is applied to provide additional electrical insulation and environmental protection, completing the final encapsulation of the battery and making it a finished product ready for practical application.

[0022] The above object 3 of the present application is achieved by the following technical solutions:

[0023] A computing device comprising a memory, a processor, and a computer program stored in the memory and executable by the processor, the computer program implementing the steps of the method for manufacturing AA lithium-ion batteries described above when the processor executes the computer program.

[0024] The above object 4 of the present application is achieved by the following technical solutions:

[0025] A computer-readable storage medium has stored thereon a computer program that, when executed by a processor, implements the steps of the method for manufacturing the AA-size lithium-ion battery described above.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. Obtain the battery core of the battery through the battery core manufacturing process, ensure that the quality and performance of the battery core meets the design requirements through a standardized battery core manufacturing process, and provide the basic assembly for subsequent battery assembly. Select the steel to manufacture the battery, stamp the steel to obtain the upper steel shell of the battery, select and stamp the appropriate steel to form the upper steel shell of the battery, provide mechanical protection and structural support for the battery core, and ensure that the battery core is isolated from the external environment. Obtain the user's needs and the property parameters of the leaf spring, and determine the bending parameters of the leaf spring based on the user's needs and the property parameters of the leaf spring. Accurately determine the bending angle and shape of the leaf spring through an analysis of the user's needs and the physical properties of the leaf spring, and achieve the expected electrical connection and mechanical performance.

[0028] 2. Based on the leaf spring bending parameters, assemble the PCB board and the upper steel shell of the battery. Bend the negative leaf spring on the side of the PCB board downwards to make elastic contact between the negative leaf spring and the upper steel shell. Bend the positive leaf spring at the bottom of the PCB board downwards to make elastic contact between the positive leaf spring and the top of the battery core, thus obtaining a complete step-down charging terminal. Assemble the bent leaf spring, PCB board and upper steel shell to form the main electrical connection, ensuring accurate connection between the positive and negative poles of the battery and the circuit on the PCB board. By accurately bending the leaf spring, the upper steel shell of the battery and the top of the battery core can be easily connected. The terminal assembly is then fitted onto the battery core to complete the assembly of the battery semi-finished product, laying the foundation for the final encapsulation and testing of the battery. The battery semi-finished product is then rolled and fixed along the roll groove of the battery core, and an insulating film is fitted onto the outside of the rolled and fixed semi-finished product to obtain the finished battery. The rolling and fixing ensures the structural stability and reliability of the battery assembly and the electrical connection, and the insulating film is fitted to provide additional electrical insulation and environmental protection, completing the final encapsulation of the battery and turning it into a finished product that can be used in actual applications. [Brief explanation of the drawings]

[0029] [Figure 1] FIG. 1 is a schematic diagram of the overall structure of the AA-type lithium ion battery of the present application. [Figure 2] FIG. 2 is a flowchart of a method for manufacturing an AA-size lithium ion battery in one embodiment of the present application. [Figure 3] FIG. 3 is a flowchart illustrating step S20 in the manufacturing method for AA-size lithium-ion batteries according to an embodiment of the present application. [Figure 4] FIG. 4 is a flowchart illustrating step S30 in the manufacturing method for AA-size lithium-ion batteries according to an embodiment of the present application. [Figure 5]FIG. 5 is a flowchart illustrating step S31 in the manufacturing method for an AA-size lithium-ion battery according to an embodiment of the present application. [Figure 6] FIG. 6 is a flowchart illustrating step S32 in the manufacturing method for AA-size lithium-ion batteries according to an embodiment of the present application. [Figure 7] FIG. 7 is a block diagram showing the principle of an apparatus for manufacturing AA-size lithium ion batteries according to an embodiment of the present application. [Figure 8] FIG. 8 is a schematic diagram of the internal structure of a computer device according to an embodiment of the present application. [Explanation of symbols]

[0030] 1 Upper steel shell 2 PCB boards 3 Insulation gasket 4 Battery Core 5. Insulating film 6 Positive leaf spring 7 Negative leaf spring DETAILED DESCRIPTION OF THE INVENTION

[0031] The present application will now be described in more detail with reference to the drawings.

[0032] In one embodiment, as shown in FIG. 2, the present application discloses a method for manufacturing an AA-type lithium ion battery, which specifically includes the following steps:

[0033] S10: Obtain a battery core of a battery manufactured through a battery core manufacturing process.

[0034] Specifically, first, according to the requirements of the battery design, positive electrode material, negative electrode material, adhesive, conductive agent and solvent are mixed in a certain proportion, the prepared positive electrode slurry is evenly coated on aluminum foil, and the negative electrode slurry is coated on copper foil. During coating, the coating speed and thickness need to be controlled to ensure the uniformity and conformity of the pole pieces. After coating, the pole pieces are dried to remove the solvent, leaving the active material and adhesive evenly distributed. After drying, the pole pieces are compressed by a rolling machine, and the rolled pole pieces are cut to the required size. Then, they are die-cut into the required shape of the battery by a die-cutting machine. The slit and die-cut positive electrode pieces, negative electrode pieces and diaphragm are arranged alternately, and then rolled or stacked in layers to form the initial structure of the battery core.

[0035] S20: Select the steel to manufacture the battery, and stamp the steel to obtain the upper steel shell of the battery.

[0036] Specifically, to improve the safety of the battery, a suitable steel must be selected as the material for the battery housing. After the steel is selected, it must be trimmed to a size suitable for stamping. This includes pre-processing steps such as cutting and flash removal to ensure that the size and shape of the steel are suitable for the subsequent stamping process. After stamping is completed, the result is the upper steel shell of the battery, i.e., the top cover of the battery. The upper steel shell is usually designed with screws or other threads to tightly fit the lower shell of the battery and to prevent electrolyte leakage.

[0037] S30: Obtain user needs and property parameters of the leaf spring, and determine bending parameters of the leaf spring based on the user needs and the property parameters of the leaf spring.

[0038] Specifically, first, it is necessary to communicate with the user to understand the specific requirements for the product, such as the product's function, performance, size, shape, usage environment, durability, etc. Then, based on the user's needs and the leaf spring property parameters, the engineer needs to specify the leaf spring bending design and the leaf spring bending degree to ensure the safety of the overall structure of the battery design.

[0039] S40: Based on the leaf spring bending parameters, assemble the PCB board and the upper steel shell of the battery. Bend the negative leaf spring on the side of the PCB board toward the battery core to make elastic contact between the negative leaf spring and the upper steel shell. Bend the positive leaf spring at the bottom of the PCB board toward the battery core to make elastic contact between the positive leaf spring and the top of the battery core to obtain a complete step-down charging terminal.

[0040] Specifically, before assembly, the leaf spring bending parameters, including the bending angle, bending radius, bending shape, etc., of the leaf spring must be specified. These parameters affect the contact effect and reliability of the electrical connection between the leaf spring and the PCB board and other assemblies. The PCB board is then placed in an appropriate position, and the upper steel shell of the battery and the PCB board are then aligned and fixed with adhesive. The negative leaf spring on the side of the PCB board is bent toward the battery core, so that the negative leaf spring and the upper steel shell come into elastic contact. The positive leaf spring at the bottom of the PCB board is bent toward the battery core, so that the positive leaf spring and the top of the battery core come into elastic contact. Through the above steps, the negative and positive leaf springs are in elastic contact with the upper steel shell of the battery and the top of the battery core, respectively, forming a complete electrical connection path. This path is the step-down charging terminal, which allows current to flow from the battery core to the PCB board, further regulating the voltage and charging the battery.

[0041] S50: The complete step-down charging terminal is fitted onto the battery core to obtain a semi-finished battery, and an insulating gasket is provided between the complete step-down charging terminal and the battery core.

[0042] Specifically, the complete step-down charging terminal is fitted onto the battery core, the leaf spring portion of the terminal is aligned with the positive and negative electrode contact areas of the battery core, the bent portion of the negative electrode leaf spring should be in elastic contact with the negative electrode area of ​​the battery core, i.e., the upper steel shell of the battery, and the bent portion of the positive electrode leaf spring should be in elastic contact with the top of the battery core. After the step-down charging terminal is fitted onto the battery core, it is necessary to check whether the contact between the leaf spring and the battery core is good to ensure there is no risk of poor contact or short circuit, and finally a semi-finished battery is obtained.

[0043] S60: The semi-finished battery product is rolled along the roll groove of the battery core to be fixed, and an insulating film is fitted on the outside of the rolled semi-finished product to obtain a finished battery product.

[0044] Specifically, some special designs on the battery core housing, such as grooves or bands, are intended to improve the structural stability of the battery assembly. The semi-finished battery product is rolled and fixed along the roll grooves of the battery core, and a pressure machine is used to compress the semi-finished battery product into the roll grooves to ensure a tight engagement between the battery core and the housing or terminals, preventing displacement or loosening during battery use. An insulating film is then fitted on the outside of the semi-finished product after roll fixing to obtain a finished battery.

[0045] According to the above technical solution, the battery core of the battery is obtained through the battery core manufacturing process, and the standardized battery core manufacturing process ensures that the quality and performance of the battery core meets the design requirements, providing the basic assembly for the subsequent battery assembly; selecting steel to manufacture the battery, stamping steel to obtain the upper steel shell of the battery; selecting and stamping appropriate steel to form the upper steel shell of the battery, providing mechanical protection and structural support for the battery core and ensuring that the battery core is isolated from the external environment; obtaining the user needs and the property parameters of the leaf spring; determining the bending parameters of the leaf spring according to the user needs and the property parameters of the leaf spring; accurately determining the bending angle and shape of the leaf spring according to the user needs and the analysis of the physical properties of the leaf spring, so as to achieve the expected electrical connection and mechanical performance; assembling the PCB board and the upper steel shell of the battery according to the bending parameters of the leaf spring; and attaching the negative leaf spring on the side of the PCB board downwards. The positive leaf spring at the bottom of the PCB board is bent downwards to make elastic contact between the negative leaf spring and the upper steel shell, and the positive leaf spring at the bottom of the PCB board is bent downwards to make elastic contact between the positive leaf spring and the top of the battery core, thereby obtaining a complete step-down charging terminal. The bent leaf spring is then assembled with the PCB board and the upper steel shell to form the main electrical connection, ensuring accurate connection between the positive and negative electrodes of the battery and the circuit on the PCB board. By accurately bending the leaf spring, elastic contact with the upper steel shell of the battery and the top of the battery core is achieved, forming a stable electrical connection and simultaneously achieving the functions of step-down and charging the battery. The complete step-down charging terminal is then fitted onto the battery core to obtain a semi-finished battery. The terminal assembly is then fitted onto the battery core to complete the assembly of the semi-finished battery and lay the foundation for final battery encapsulation and testing. The semi-finished battery is then rolled and fixed along the roll grooves of the battery core, and an insulating film is fitted onto the outside of the rolled and fixed semi-finished product to obtain a finished battery. The roll-fixing ensures the structural stability of the battery assembly and the reliability of the electrical connection.An insulating film is applied to provide additional electrical insulation and environmental protection, completing the final encapsulation of the battery and making it a finished product ready for practical application.

[0046] In one embodiment, as shown in FIG. 3, step S20 of selecting steel to manufacture the battery and stamping the steel to obtain the upper steel shell of the battery specifically includes:

[0047] S21: Obtain property data of a battery, and identify steel stamping parameters based on the property data of the battery.

[0048] Specifically, before designing and manufacturing a battery, the battery's property data must first be understood, which may include the battery's size, shape, capacity, voltage, chemical composition, expected load, operating temperature range, etc. From the battery's property data, engineers can identify the specific parameters required for steel stamping, which may include the steel's thickness, height, tensile strength, etc., as well as the required force, speed, mold design, etc. during stamping. For example, if the battery needs to be subjected to high internal pressure, a thicker or stronger steel must be selected to correspondingly improve the stamping strength.

[0049] S22: Based on the steel stamping parameters, stamp the steel to obtain the upper steel shell of the battery.

[0050] Specifically, after the stamping parameters are specified, the steel is then processed using a stamping machine, during stamping, the steel is placed in a mold, and then a pressure machine applies force to deform the steel and form the required shape, and after stamping, what is obtained is the upper steel shell of the battery.

[0051] In one embodiment, as shown in FIG. 4, step S30 of obtaining user needs and property parameters of the leaf spring and determining bending parameters of the leaf spring according to the user needs and property parameters of the leaf spring specifically includes:

[0052] S31: User needs and property parameters of the leaf spring are input into the pre-trained bending model for comparative analysis, and the analysis results are obtained.

[0053] Specifically, the specific needs of the user for the leaf spring must first be collected and understood, and the user needs and leaf spring property data are input into the analysis model. The model then compares and analyzes the user needs with the leaf spring properties to determine whether they meet the user's requirements. After the analysis is complete, the model provides results, including performance evaluations of the leaf spring under different bending conditions, potential problems, and improvement suggestions.

[0054] S32: Based on the analysis results, the bending parameters of the leaf spring are identified, and the bending parameters of the leaf spring include angle parameters and contact surface parameters of the leaf spring.

[0055] Specifically, because the angle parameter is a key factor in determining the tightness and elasticity of the engagement between the leaf spring and the contact surface, the analysis results can identify the specific angle at which the leaf spring must be bent. If the analysis results show that the current design does not meet the user's needs, the leaf spring design may be adjusted, for example, by changing the material, size, or bending shape, and then a new analysis may be performed until a solution that meets all requirements is found.

[0056] In one embodiment, as shown in FIG. 5, in step S31, user needs and leaf spring property parameters are input into a pre-trained bending model for comparative analysis, and the analysis results are obtained to obtain a pre-trained bending module, which specifically includes the following steps:

[0057] S301: Obtain the property parameters and corresponding bending degree data of the leaf springs of each material, pre-process the property parameters and corresponding bending degree data of the leaf springs of each material, and obtain a training set.

[0058] Specifically, it is first necessary to collect property parameters of leaf springs made of different materials, such as the leaf spring's material type, size, elastic modulus, tensile strength, yield strength, etc. At the same time, bending degree data of leaf springs made of various materials under different bending conditions, such as bending angle, bending radius, etc., are collected, and the collected data is preprocessed for later model training. The preprocessed data is organized into a format suitable for model training, forming a training set.

[0059] S302: Construct a bending module using a decision tree algorithm, and use the training set to train the bending module using forward and backward propagation. Optimize the trained bending module using forward and backward propagation using a genetic algorithm to obtain a pre-trained bending module.

[0060] Specifically, a bending module is constructed using a decision tree algorithm, and the bending module is trained using forward and backward propagation methods using a training set. The trained bending module is optimized using a genetic algorithm to obtain a pre-trained bending module. After forward and backward propagation methods are trained, the genetic algorithm is further optimized to obtain a pre-trained bending module, which can predict the bending behavior under specific conditions based on the property parameters of the leaf spring.

[0061] In one embodiment, as shown in FIG. 6, step S32 of determining the angle parameters and contact surface parameters of the leaf spring based on the analysis result specifically includes:

[0062] S321: Based on the user needs and the property parameters of the leaf spring, the bending angle and contact surface parameters are identified from the analysis results.

[0063] Specifically, the bending angle and contact surface parameters of the leaf spring are identified through analysis using user needs and the property parameters of the leaf spring. The bending angle determines the degree of deformation of the leaf spring, and the contact surface parameters affect the contact effect between the leaf spring and other components.

[0064] S322: A simulation test is performed on the bending angle and the contact surface parameters, and the results of the simulation test are obtained.

[0065] Specifically, a computer-aided simulation test is carried out on the initially determined bending angle and contact surface parameters. The simulation test can predict the performance of the leaf spring in actual application without actually manufacturing the leaf spring. After the simulation test is completed, the simulation result data is analyzed to evaluate whether the bending performance of the leaf spring meets the design requirements and user needs, and to check whether the maximum stress is within the bearing range of the material and whether the deformation of the leaf spring is as expected.

[0066] S323: Identify the bending angle and contact surface parameters of the leaf spring based on the results of the simulation test.

[0067] Specifically, if the simulation test results show that the current bending angle or contact surface parameters do not meet the requirements, these parameters need to be adjusted. After the parameters are adjusted, a simulation test is conducted again to verify the performance of the leaf spring under the new parameters. A series of simulation tests and parameter adjustments are then carried out, and finally a set of bending angle and contact surface parameters that meet the user needs and design criteria is identified.

[0068] It should be understood that the magnitude of the numbers of each step in the above embodiments does not mean the order of execution, and the execution order of each process should be determined by its function and inherent logic, and does not arbitrarily limit the implementation process of the embodiments of the present application.

[0069] In one embodiment, an apparatus for manufacturing AA-type lithium-ion batteries is provided that corresponds one-to-one with the method for manufacturing AA-type lithium-ion batteries in the above embodiment. As shown in Figure 7, the apparatus for manufacturing AA-type lithium-ion batteries includes a battery core manufacturing module, a stamping module, a bending module, an assembly module, an outer fitting module, and a rolling module. Each functional module is described in detail below.

[0070] A battery core manufacturing module is for manufacturing and obtaining a battery core of a battery from a battery core manufacturing process.

[0071] A stamping module for selecting the steel from which the battery is to be manufactured and for stamping the steel to obtain the upper steel shell of the battery.

[0072] A bending identification module is for obtaining user needs and property parameters of the leaf spring, and identifying bending parameters of the leaf spring based on the user needs and the property parameters of the leaf spring.

[0073] The assembly module assembles the PCB board and the upper steel shell of the battery based on the bending parameters of the leaf springs, bending the negative leaf spring on the side of the PCB board toward the battery core to bring the negative leaf spring into elastic contact with the upper steel shell, and bending the positive leaf spring at the bottom of the PCB board toward the battery core to bring the positive leaf spring into elastic contact with the top of the battery core, thereby obtaining a complete step-down charging terminal.

[0074] The outer fitting module is for fitting the complete step-down charging terminal onto the battery core to obtain a semi-finished battery, and an insulating gasket is provided between the complete step-down charging terminal and the battery core.

[0075] The rolling module is used to roll and fix the semi-finished battery product along the roll groove of the battery core, and to externally fit an insulating film on the outside of the rolled and fixed semi-finished product to obtain a finished battery product.

[0076] In the selection, the stamping module a property acquisition sub-module for acquiring property data of the battery and identifying steel stamping parameters based on the property data of the battery; and a steel stamping sub-module for stamping steel according to steel stamping parameters to obtain an upper steel shell of the battery.

[0077] Optionally, the bend identification module an analysis sub-module for inputting user needs and leaf spring property parameters into a pre-trained bending module for comparative analysis and obtaining analysis results; and a parameter determination sub-module for determining bending parameters of the leaf spring based on the analysis result, where the bending parameters of the leaf spring include angle parameters and contact surface parameters of the leaf spring.

[0078] In the selection, the analysis submodule a training set obtaining unit for obtaining property parameters and corresponding bending degree data of the leaf springs of each material, and pre-processing the property parameters and corresponding bending degree data of the leaf springs of each material to obtain a training set; The method includes a training unit for constructing a bending module from a decision tree algorithm, training the bending module through forward propagation and backward propagation using a training set, and optimizing the trained bending module through forward propagation and backward propagation using a genetic algorithm to obtain a pre-trained bending module.

[0079] In the selection, the parameter specification submodule a property parameter determination unit for determining bending angles and contact surface parameters from the analysis results according to user needs and the property parameters of the leaf spring; a simulation test unit for performing a simulation test on the bending angle and the contact surface parameters and obtaining a result of the simulation test; and a contact surface parameter determining unit for determining the bending angle and contact surface parameters of the leaf spring based on the results of the simulation test.

[0080] For specific limitations of the manufacturing apparatus for AA lithium-ion batteries, please refer to the limitations of the manufacturing method for AA lithium-ion batteries described above, and they will not be repeated here. Each module in the manufacturing apparatus for AA lithium-ion batteries described above may be realized in whole or in part by software, hardware, or a combination thereof. Each module may be integrated into a processor in a computer device in the form of hardware, or may be independent, or may be stored in a memory in a computer device in the form of software, so that the processor can call each module and cause it to perform the corresponding operation.

[0081] In one embodiment, a computer device is provided, which may be a server and whose internal structure may be as shown in Figure 8. The computer device includes a processor, a memory, a network interface, and a database, all connected via a system bus. The processor of the computer device is for providing calculation and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is for connecting to and communicating with an external terminal via a network. When the computer program is executed by the processor, it realizes a method for manufacturing AA-size lithium-ion batteries.

[0082] In one embodiment, a computing device is provided comprising a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein when the processor executes the computer program: Obtaining a battery core of a battery manufactured from a battery core manufacturing process; selecting a steel for manufacturing the battery and stamping the steel to obtain an upper steel shell of the battery; obtaining user needs and property parameters of the leaf spring, and determining bending parameters of the leaf spring based on the user needs and the property parameters of the leaf spring; According to the bending parameters of the leaf springs, assemble the PCB board and the upper steel shell of the battery, bend the negative leaf spring on the side of the PCB board toward the battery core so that the negative leaf spring and the upper steel shell are in elastic contact, and bend the positive leaf spring on the bottom of the PCB board toward the battery core so that the positive leaf spring and the top of the battery core are in elastic contact, thereby obtaining a complete step-down charging terminal; a step of fitting a complete step-down charging terminal to a battery core to obtain a semi-finished battery, wherein an insulating gasket is provided between the complete step-down charging terminal and the battery core; The semi-finished battery product is rolled and fixed along the roll groove of the battery core, and an insulating film is fitted on the outside of the rolled and fixed semi-finished product to obtain a finished battery product.

[0083] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program, when executed by a processor, Obtaining a battery core of a battery manufactured from a battery core manufacturing process; selecting a steel for manufacturing the battery and stamping the steel to obtain an upper steel shell of the battery; obtaining user needs and property parameters of the leaf spring, and determining bending parameters of the leaf spring based on the user needs and the property parameters of the leaf spring; According to the bending parameters of the leaf springs, assemble the PCB board and the upper steel shell of the battery, bend the negative leaf spring on the side of the PCB board toward the battery core so that the negative leaf spring and the upper steel shell are in elastic contact, and bend the positive leaf spring on the bottom of the PCB board toward the battery core so that the positive leaf spring and the top of the battery core are in elastic contact, thereby obtaining a complete step-down charging terminal; a step of fitting a complete step-down charging terminal to a battery core to obtain a semi-finished battery, wherein an insulating gasket is provided between the complete step-down charging terminal and the battery core; The semi-finished battery product is rolled and fixed along the roll groove of the battery core, and an insulating film is fitted on the outside of the rolled and fixed semi-finished product to obtain a finished battery product.

[0084] Those skilled in the art will understand that all or part of the steps in the above-described method embodiments may be accomplished by instructing relevant hardware using a computer program. The computer program may be stored in a non-volatile computer-readable storage medium, and when executed, the computer program may include the steps of the above-described method embodiments. Any references to memory, database, or other medium used in the embodiments provided herein may include at least one of non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or an external cache. By way of example and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), sync link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0085] Those skilled in the art will clearly understand that, for convenience and simplicity of explanation, only the division of each functional unit or module has been given as an example, but in actual application, the above functions can be assigned to different functional units or modules as needed to be completed, i.e., by dividing the internal structure of the device into different functional units or modules, all or part of the functions described above can be completed.

[0086] The above-mentioned embodiments are only for illustrating the technical solutions of the present invention, but are not intended to limit the same. Although the present application has been described in detail with reference to the above-mentioned embodiments, those skilled in the art may still amend the technical solutions described in the above-mentioned embodiments or equivalently replace some technical features therein, but it should be understood that such amendments or replacements shall not deviate from the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and all of them shall fall within the protection scope of the present invention.

Claims

1. A method for manufacturing an AA-size lithium ion battery, comprising: Obtaining a battery core of a battery manufactured from a battery core manufacturing process; selecting a steel for manufacturing the battery and stamping the steel to obtain an upper steel shell of the battery; obtaining user needs and property parameters of a leaf spring, and determining bending parameters of the leaf spring based on the user needs and the property parameters of the leaf spring; According to the bending parameters of the leaf springs, assemble the PCB board and the upper steel shell of the battery, bend the negative leaf spring on the side of the PCB board toward the battery core, so that the negative leaf spring and the upper steel shell are in elastic contact, and bend the positive leaf spring on the bottom of the PCB board toward the battery core, so that the positive leaf spring and the top of the battery core are in elastic contact, to obtain a complete step-down charging terminal; fitting the complete step-down charging terminal to the battery core to obtain the semi-finished battery, wherein an insulating gasket is provided between the complete step-down charging terminal and the battery core; and rolling and fixing the semi-finished battery product along the roll groove of the battery core, and wrapping an insulating film around the outside of the rolled and fixed semi-finished product to obtain the finished battery product. AA-type lithium-ion battery manufacturing method.

2. The steps of selecting a steel for manufacturing the battery, stamping the steel, and obtaining an upper steel shell of the battery include: acquiring battery property data and identifying steel stamping parameters based on the battery property data; stamping the steel according to the steel stamping parameters to obtain an upper steel shell of the battery.

2. The method for manufacturing an AA-size lithium ion battery according to claim 1.

3. The upper steel shell of the battery has a first through hole and a second through hole, the first through hole is formed at one end of the upper steel shell close to the battery core, and the second through hole is formed at one end of the upper steel shell away from the battery core, and the diameter of the first through hole is larger than the diameter of the second through hole, and the diameter of the first through hole is larger than 14 mm.

3. The method for manufacturing an AA-size lithium ion battery according to claim 2.

4. The step of obtaining user needs and property parameters of a leaf spring and determining bending parameters of the leaf spring based on the user needs and the property parameters of the leaf spring includes: inputting the user needs and the property parameters of the leaf spring into a pre-trained bending model for comparative analysis, and obtaining an analysis result; and determining bending parameters of the leaf spring based on the analysis results, the bending parameters of the leaf spring including angle parameters and contact surface parameters of the leaf spring.

2. The method for manufacturing an AA-size lithium ion battery according to claim 1.

5. The method for manufacturing an AA lithium ion battery further comprises: Obtaining the property parameters and corresponding bending degree data of the leaf springs of each material, and pre-processing the property parameters and corresponding bending degree data of the leaf springs of each material to obtain a training set; constructing a bending module from a decision tree algorithm, training the bending module through forward propagation and backward propagation using a training set, and optimizing the trained bending module through forward propagation and backward propagation using a genetic algorithm to obtain the pre-trained bending module.

5. The method for manufacturing an AA-size lithium ion battery according to claim 4.

6. determining bending parameters of the leaf spring based on the analysis result, the bending parameters of the leaf spring including angle parameters and contact surface parameters of the leaf spring, determining bending angles and contact surface parameters from the analysis results based on the user needs and the property parameters of the leaf spring; performing a simulation test on the bending angle and contact surface parameters and obtaining a result of the simulation test; and determining the bending angle and contact surface parameters of the leaf spring based on the results of the simulation test.

5. The method for manufacturing an AA-size lithium ion battery according to claim 4.

7. An apparatus for manufacturing AA-type lithium-ion batteries, a battery core manufacturing module for manufacturing and obtaining a battery core of the battery from a battery core manufacturing process; a stamping module for selecting a steel for manufacturing the battery and stamping the steel to obtain an upper steel shell of the battery; a bending identification module for obtaining user needs and property parameters of a leaf spring, and identifying bending parameters of the leaf spring based on the user needs and the property parameters of the leaf spring; an assembly module for assembling a PCB board and an upper steel shell of the battery according to the bending parameters of the leaf springs, bending the negative leaf springs on the side of the PCB board downwards to make the negative leaf springs elastically contact with the upper steel shell, bending the positive leaf springs on the bottom of the PCB board downwards to make the positive leaf springs elastically contact with the top of the battery core, and obtaining a complete step-down charging terminal; an outer fitting module for fitting the complete step-down charging terminal to the battery core to obtain the semi-finished battery, wherein an insulating gasket is provided between the complete step-down charging terminal and the battery core; a rolling module for rolling and fixing the semi-finished battery product along the roll groove of the battery core, and for wrapping an insulating film around the outside of the rolled and fixed semi-finished product to obtain the finished battery product. AA-type lithium-ion battery manufacturing apparatus.

8. The stamping module includes: a stamping parameter identification submodule for acquiring battery property data and identifying steel stamping parameters according to the battery property data; and a stamping steel shell sub-module for stamping the steel based on the steel stamping parameters to obtain an upper steel shell of the battery.

8. The method for manufacturing an AA-size lithium ion battery according to claim 7.

9. 1. A computing device comprising a memory, a processor, and a computer program stored in the memory and executable by the processor, The processor, when executing the computer program, performs the steps of the method for manufacturing an AA-size lithium-ion battery according to any one of claims 1 to 6.

1. A computer device characterized by:

10. A computer-readable storage medium on which a computer program is stored, The computer program, when executed by a processor, implements the steps of the method for manufacturing an AA lithium-ion battery according to any one of claims 1 to 6. A computer-readable storage medium comprising:

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