Manufacturing method, device, equipment and medium for AA-type lithium-ion batteries

Abstract

A method and an apparatus for manufacturing a lithium-ion battery that improves battery safety. [Solution] A battery core for a battery is obtained through a battery core manufacturing process, and a standardized battery core manufacturing process is used to ensure that the quality and performance of the battery core meets the design requirements, providing a basic assembly for subsequent battery assembly; steel is selected to manufacture the battery, and the steel is stamped to obtain an upper steel shell for the battery; appropriate steel is selected and stamped to form the upper steel shell of the battery, providing mechanical protection and structural support for the battery core.

Description

[Technical field]

[0001] The present application relates to the technical field of battery manufacturing, and in particular to a method, apparatus, device and medium for manufacturing AA-type lithium-ion batteries. [Background technology]

[0002] At present, 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, there are still problems such as process complexity during manufacturing and low yield, which limit the further development of the industry. The traditional manufacturing process of AA type batteries mainly uses soft-wrapped cores, which are welded with step-down circuits and then packed into steel shells, which is difficult to mass-produce on a large scale and requires special chargers.

[0003] The above-mentioned conventional technical solutions have the following shortcomings: The conventional manufacturing methods are lacking in process management, 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 lithium ion battery, comprising the steps of: Obtaining a battery core of a battery by manufacturing from a battery core manufacturing process; selecting a steel from which the battery is to be manufactured 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 spring, 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, 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, and obtain a complete step-down charging terminal; fitting the complete step-down charging terminal onto the 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.

[0007] According to the above technical solution, a battery core of a battery is obtained through a battery core manufacturing process, and the quality and performance of the battery core meet the design requirements through a standardized battery core manufacturing process; and 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; a suitable steel is selected and stamped to form an 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; the user needs and the property parameters of the leaf spring are obtained; the bending parameters of the leaf spring are determined according to the user needs and the property parameters of the leaf spring; the bending angle and shape of the leaf spring are accurately determined 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; and the PCB board and the upper steel shell of the battery are assembled according to the bending parameters of the leaf spring, and the negative leaf spring on the side of the PCB board is pushed downward. Bending the negative leaf spring, making elastic contact with the upper steel shell; folding the positive leaf spring at the bottom of the PCB board downward, making elastic contact with the positive leaf spring and the top of the battery core to obtain a complete step-down charging terminal; assembling the folded leaf spring with the PCB board and the upper steel shell to form the main part of the electrical connection, ensuring the accurate connection between the positive and negative poles of the battery and the circuit on the PCB board; accurately bending the leaf spring, realizing elastic contact with the upper steel shell of the battery and the top of the battery core, forming a stable electrical connection, and at the same time establishing the functions of step-down and charging the battery; fitting the complete step-down charging terminal onto the battery core to obtain a semi-finished battery; fitting the terminal assembly onto the battery core to complete the assembly of the semi-finished battery, laying the foundation for the final encapsulation and testing of the battery; rolling and fixing the semi-finished battery along the roll groove of the battery core; fitting an insulating film onto the outside of the roll-fixed semi-finished product to obtain a finished battery; and rolling and fixing ensures the structural stability and electrical connection of the battery assembly;An insulating film is then applied to provide additional electrical insulation and environmental protection, completing the final encapsulation of the battery and making it into a finished product that can be used in practical applications.

[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 comprises the steps of: selecting a steel for manufacturing the battery, stamping the steel, and obtaining an upper steel shell of the battery, obtaining 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 adoption of the above technical solution, the property data of the battery is obtained, the steel stamping parameters are identified according to the property data of the battery, the property data of the battery is analyzed, and suitable steel types and specifications are selected, and the key parameters during stamping are identified, so that the steel meets the design requirements of the battery, while ensuring the feasibility and efficiency of the stamping forming, stamping the steel according to the steel stamping parameters, obtaining the upper steel shell of the battery, and carrying out the actual stamping process using the identified stamping parameters to form it as the upper steel shell of the battery, thereby realizing the physical shape of the battery housing, providing mechanical protection for the battery core, and ensuring the structural integrity of the battery.

[0011] In a preferred embodiment of the present application, a first through hole and a second through hole may be formed in the upper steel shell of the battery, the first through hole being formed at one end of the upper steel shell approaching the battery core and the second through hole being formed at one end of the upper steel shell away from the battery core, and the first through hole may be arranged such that 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.

[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, the second through hole is drilled at the top of the upper steel shell, and the hole diameter of the first through hole is larger than that of the second through hole, and the hole diameter of the first through hole is larger than 14 mm.

[0013] In a preferred embodiment, the present application further includes the steps 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, 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.

[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 the pre-trained bending module for comparative analysis to obtain the analysis result; by inputting the user's specific needs and the physical property data of the leaf spring into the trained bending module, the performance of the leaf spring under different conditions can be analyzed with the prediction ability of the model; 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 result, the angle parameters and contact surface parameters of the leaf spring are identified to ensure that the leaf spring reaches the expected performance in practical application.

[0015] In a preferred embodiment, the method for producing the AA lithium ion battery further comprises: Obtaining property parameters and corresponding bending degree data of leaf springs of each material, and pre-processing the property parameters and corresponding bending degree data of leaf springs of each material to obtain a training set; The method may be configured to include a step of 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] By adopting the above technical solution, the property parameters of leaf springs of various materials and the corresponding bending degree data are obtained, the property parameters of leaf springs of various materials 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 through 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 of forward propagation and backward propagation is optimized through 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 includes a step of 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, the step of: 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 the contact surface parameters to obtain a result of the simulation test; 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 identified from the analysis results, a simulation test is performed on the bending angle and contact surface parameters, and the results of the simulation test are obtained. The bending angle and contact surface parameters of the leaf spring are identified based on the results of the simulation test, 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, comprising: a battery core manufacturing module for manufacturing and obtaining a battery core of a 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 bending parameters of the leaf spring, bending the negative leaf spring on the side of the PCB board toward the battery core, and making the negative leaf spring elastically contact with the upper steel shell, bending the positive leaf spring on the bottom of the PCB board toward the battery core, and making the positive leaf spring elastically contact with the top of the battery core, to obtain a complete step-down charging terminal; an outer fitting module for fitting the complete step-down charging terminal to the 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; and a rolling module for 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.

[0021] According to the above technical solution, a battery core of a battery is obtained through a battery core manufacturing process, and the quality and performance of the battery core meet the design requirements through a standardized battery core manufacturing process; and 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; a suitable steel is selected and stamped to form an 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; the user needs and the property parameters of the leaf spring are obtained; the bending parameters of the leaf spring are determined according to the user needs and the property parameters of the leaf spring; the bending angle and shape of the leaf spring are accurately determined 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; and the PCB board and the upper steel shell of the battery are assembled according to the bending parameters of the leaf spring, and the negative leaf spring on the side of the PCB board is pushed downward. Bending the negative leaf spring, making elastic contact with the upper steel shell; folding the positive leaf spring at the bottom of the PCB board downward, making elastic contact with the positive leaf spring and the top of the battery core to obtain a complete step-down charging terminal; assembling the folded leaf spring with the PCB board and the upper steel shell to form the main part of the electrical connection, ensuring the accurate connection between the positive and negative poles of the battery and the circuit on the PCB board; accurately bending the leaf spring, realizing elastic contact with the upper steel shell of the battery and the top of the battery core, forming a stable electrical connection, and at the same time establishing the functions of step-down and charging the battery; fitting the complete step-down charging terminal onto the battery core to obtain a semi-finished battery; fitting the terminal assembly onto the battery core to complete the assembly of the semi-finished battery, laying the foundation for the final encapsulation and testing of the battery; rolling and fixing the semi-finished battery along the roll groove of the battery core; fitting an insulating film onto the outside of the roll-fixed semi-finished product to obtain a finished battery; and rolling and fixing ensures the structural stability and electrical connection of the battery assembly;An insulating film is then applied to provide additional electrical insulation and environmental protection, completing the final encapsulation of the battery and making it into a finished product that can be used in practical applications.

[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 computing device 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 having stored thereon a computer program which, when executed by a processor, implements the steps of the method for manufacturing an AA-size lithium-ion battery as described above.

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

[0027] 1. Obtain a battery core for a battery through a 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 a basic assembly for subsequent battery assembly; select steel for manufacturing the battery, stamp the steel to obtain an upper steel shell for the battery, select and stamp an appropriate steel to form an upper steel shell for 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 needs and the property parameters of the leaf spring, and determine the bending parameters of the leaf spring according to the user needs and the property parameters of the leaf spring; and accurately determine the bending angle and shape of the leaf spring through the analysis of the user needs and the physical properties of the leaf spring, to achieve the expected electrical connection and mechanical performance.

[0028] 2. According to the bending parameters of the leaf spring, assemble the PCB board and the upper steel shell of the battery, fold the negative leaf spring on the side of the PCB board downward to make elastic contact between the negative leaf spring and the upper steel shell, fold the positive leaf spring at the bottom of the PCB board downward to make elastic contact between the positive leaf spring and the top of the battery core, obtain a complete step-down charging terminal, assemble the folded leaf spring, PCB board and the upper steel shell to form the main part of the electrical connection, ensure the accurate connection between the positive and negative poles of the battery and the circuit on the PCB board, and fold the leaf spring accurately to make elastic contact between the upper steel shell of the battery and the top of the battery core. The battery core is then fitted with a terminal assembly 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 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. The rolling fixation ensures the structural stability and electrical connection of the battery assembly, and the insulating film is fitted to provide additional electrical insulation and environmental protection. This completes the assembly of the battery semi-finished product, and turns it into a finished product that can be used in practical applications. [Brief description of the drawings]

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

[0030] 1 Upper steel shell 2 PCB Board 3 Insulation gasket 4 Battery Core 5. Insulating film 6 Positive Leaf Spring 7 Negative Leaf Spring DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[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 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, the positive electrode material, the negative electrode material, the adhesive, the conductive agent and the solvent are mixed in a certain proportion, the prepared positive electrode slurry is evenly coated on the aluminum foil, and the negative electrode slurry is coated on the 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 table, and the rolled pole pieces are cut into the required size. Then, the die-cut machine is used to die-cut into the required shape of the battery. The positive electrode pieces, negative electrode pieces and diaphragms after slitting and die-cutting are alternately placed, and then wound into a roll or stacked into 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, in order to improve the safety of the battery, a suitable steel needs to be selected as the material for the battery housing, and after the steel is selected, it is trimmed to a size suitable for stamping, including pre-processing operations such as cutting, flash removal, etc., to ensure that the size and shape of the steel are suitable for the subsequent stamping process, and after the stamping is completed, the result is the upper steel shell of the battery, i.e., the top cover part of the battery. The upper steel shell is usually designed with a screw or other algorithm to tightly engage with the lower shell of the battery and ensure that the electrolyte does not leak.

[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. From the user needs and the leaf spring property parameters, the engineer needs to specify the bending design of the leaf spring, determine the bending degree of the leaf spring, and make the overall structure of the battery design safer.

[0039] S40: Based on 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 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, and obtain a complete step-down charging terminal.

[0040] Specifically, before assembly, the bending parameters of the leaf spring need to be specified, including the bending angle, bending radius, bending shape, etc. of the leaf spring, which affect the contact effect and the reliability of the electrical connection between the leaf spring and the PCB board and other assemblies. The PCB board is placed in a suitable position, and then the upper steel shell of the battery and the PCB board are 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 are in elastic contact with each other. The positive leaf spring on 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 are in elastic contact with each other. 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, to form a complete electrical connection path, which is the step-down charging terminal, so that the current flows from the battery core to the PCB board, and further realizes voltage regulation and battery charging.

[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 part of the terminal is aligned with the positive and negative electrode contact areas of the battery core, the bent part of the negative 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 part of the positive leaf spring should be in elastic contact with the top of the battery core. After the step-down charging terminal is fitted, it is necessary to check whether the contact between the leaf spring and the battery core is good to ensure that 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 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.

[0044] Specifically, some special designs, such as grooves or bands, on the housing of the battery core are for improving the structural stability of the battery assembly; the semi-finished battery product is rolled and fixed along the roll groove of the battery core, and the semi-finished battery product is compressed into the roll groove by a pressure machine to ensure the tight engagement between the battery core and the housing or terminals, and prevent the battery from being displaced or loosened during use; and an insulating film is fitted on the outside of the semi-finished product after rolling and fixing to obtain the finished battery product.

[0045] According to the above technical solution, a battery core of a battery is obtained through a battery core manufacturing process, and the quality and performance of the battery core meet the design requirements through a standardized battery core manufacturing process; and 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; a suitable steel is selected and stamped to form an 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; the user needs and the property parameters of the leaf spring are obtained; the bending parameters of the leaf spring are determined according to the user needs and the property parameters of the leaf spring; the bending angle and shape of the leaf spring are accurately determined 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; and the PCB board and the upper steel shell of the battery are assembled according to the bending parameters of the leaf spring, and the negative leaf spring on the side of the PCB board is pushed downward. Bending the negative leaf spring, making elastic contact with the upper steel shell; folding the positive leaf spring at the bottom of the PCB board downward, making elastic contact with the positive leaf spring and the top of the battery core to obtain a complete step-down charging terminal; assembling the folded leaf spring with the PCB board and the upper steel shell to form the main part of the electrical connection, ensuring the accurate connection between the positive and negative poles of the battery and the circuit on the PCB board; accurately bending the leaf spring, realizing elastic contact with the upper steel shell of the battery and the top of the battery core, forming a stable electrical connection, and at the same time establishing the functions of step-down and charging the battery; fitting the complete step-down charging terminal onto the battery core to obtain a semi-finished battery; fitting the terminal assembly onto the battery core to complete the assembly of the semi-finished battery, laying the foundation for the final encapsulation and testing of the battery; rolling and fixing the semi-finished battery along the roll groove of the battery core; fitting an insulating film onto the outside of the roll-fixed semi-finished product to obtain a finished battery; and rolling and fixing ensures the structural stability and electrical connection of the battery assembly;An insulating film is then applied to provide additional electrical insulation and environmental protection, completing the final encapsulation of the battery and making it into a finished product that can be used in practical applications.

[0046] In one embodiment, as shown in FIG. 3, step S20 of selecting a steel for manufacturing a battery and stamping the steel to obtain an 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 property data of the battery must first be understood, which may include the battery's size, shape, capacity, voltage, chemical composition, expected load, working temperature range, etc. From the property data of the battery, engineers can identify the specific parameters required for steel stamping, which may include the steel 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, a stamping machine is then used to process the steel; during stamping, the steel is placed in a die, and then a pressure machine applies force to deform the steel and form the required shape; after stamping, the result is the upper steel shell of the battery.

[0051] In one embodiment, as shown in FIG. 4, the 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 the property parameters of the leaf spring specifically includes:

[0052] S31: Input user needs and leaf spring property parameters into a pre-trained bending model to perform comparative analysis and obtain analysis results.

[0053] Specifically, the specific needs of the user for the leaf spring must first be collected and understood, and the user needs and the property data of the leaf spring are input into the analysis model. The model then performs a comparative analysis between the user needs and the properties of the leaf spring to determine whether they meet the user's requirements. After the analysis is completed, the model provides results, which may include an evaluation of the leaf spring's performance under different bending conditions, potential problems, and improvement suggestions.

[0054] S32: Based on the analysis result, 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 of engagement and resilience 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 indicate 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 is 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 property parameters of leaf springs are input into a pre-trained bending model for comparative analysis, and the analysis result is 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, firstly, it is necessary to collect the 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, the bending degree data of leaf springs made of various materials under different bending conditions, such as bending angle, bending radius, etc., is collected, and the collected data is pre-processed for later model training, and the pre-processed data is organized into a format suitable for model training to form a training set.

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

[0060] Specifically, a bending module is constructed from a decision tree algorithm, and a training set is used to train the bending module through forward propagation and backward propagation. The trained bending module is optimized through forward propagation and backward propagation by a genetic algorithm to obtain a pre-trained bending module, through which forward propagation and backward propagation are trained, and optimization of the genetic algorithm is added, and finally a pre-trained bending module is obtained, 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, in step S32, determining the leaf spring angle parameters and contact surface parameters based on the analysis result, specifically includes:

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

[0063] Specifically, the bending angle and contact surface parameters of the leaf spring are identified through analysis based on user needs and the property parameters of the leaf spring, where the bending angle determines the deformation degree 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 result of the simulation test is obtained.

[0065] Specifically, a computer-aided simulation test is carried out on the initially determined bending angle and contact surface parameters, and the simulation test can predict the performance of the leaf spring in practical application when the leaf spring is not actually manufactured. 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 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 performed, and finally a set of bending angles and contact surface parameters that meet the user needs and design criteria is identified.

[0068] It should be understood that the size 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 Fig. 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 will be described in detail as follows.

[0070] A battery core manufacturing module, 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] An assembly module is provided for assembling 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, bending the positive leaf spring on 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, and obtaining a complete step-down charging terminal.

[0074] An external fitting module is used to externally fit a complete step-down charging terminal onto a 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 along the roll groove of the battery core, and to fit an insulating film on the outside of the rolled and fixed semi-finished battery to obtain a finished battery.

[0076] Optionally, the stamping module can be a property acquisition submodule 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 the steel according to the 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 the 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 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; A training unit for constructing a bending module from a decision tree algorithm, training the bending module with forward propagation and backward propagation using a training set, and optimizing the trained bending module with forward propagation and backward propagation through a genetic algorithm to obtain a pre-trained bending module.

[0079] In the selection, the parameter specification submodule: a property parameter determining 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 the contact surface parameters of the leaf spring based on the result of the simulation test.

[0080] For specific limitations of the manufacturing apparatus for AA-type lithium-ion batteries, please refer to the limitations of the manufacturing method for AA-type lithium-ion batteries described above, and they will not be described again here. Each module in the manufacturing apparatus for AA-type lithium-ion batteries described above may be realized in whole or in part by software, hardware, or a combination thereof. Each module may be embedded in 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 to perform the corresponding operation.

[0081] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in FIG. 8. The computer device includes a processor, a memory, a network interface, and a database, which are 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 a built-in memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The built-in 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 and communicating with an external terminal via a network. When the computer program is executed by the processor, it realizes a method for manufacturing a AA-type lithium-ion battery.

[0082] In one embodiment, there is provided a computing device comprising a memory, a processor, and a computer program stored in the memory and executable by the processor, the computer program, when executed by the processor, Obtaining a battery core of a battery by manufacturing 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 to obtain a complete step-down charging terminal; Fitting a complete step-down charging terminal onto a battery core to obtain a semi-finished battery, in which 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 by manufacturing 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 to obtain a complete step-down charging terminal; Fitting a complete step-down charging terminal onto a battery core to obtain a semi-finished battery, in which 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 flow of the above embodiment method may be completed by instructing relevant hardware by a computer program, and the computer program may be stored in a non-volatile computer-readable storage medium, and the computer program may include the flow of each of the above embodiment methods when executed. Any reference to memory, database, or other medium used in each embodiment provided in this application may include at least one of non-volatile and / or volatile memory. The non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. The volatile memory may include random access memory (RAM) or external cache. By way of example and not limitation, RAM is available in a variety of forms, including 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 can clearly understand that, for convenience and brevity of explanation, only the division of each of the above functional units and modules has been given as an example, but in actual application, the above functions can be assigned and completed to different functional units and modules as needed, that is, all or part of the functions described above can be completed by dividing the internal structure of the device into different functional units or modules.

[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 embodiments, those skilled in the art may still amend the technical solutions described in the above embodiments, or equivalently replace some technical features therein, but it should be understood that such amendments or replacements will not deviate from the substance 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 should be included in the protection scope of the present invention.

Claims

1. A method for manufacturing an AA lithium ion battery, comprising the steps of: Obtaining a battery core of a battery by manufacturing from a battery core manufacturing process; selecting a steel from which the battery is manufactured 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 spring, 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, 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, and obtain a complete step-down charging terminal; fitting the complete step-down charging terminal onto the 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 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 to obtain a finished battery; 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 steps of selecting a steel for manufacturing the battery, stamping the steel, and obtaining an upper steel shell of the battery include: obtaining battery property data and identifying steel stamping parameters based on the battery property data; and stamping the steel based on the steel stamping parameters to obtain an upper steel shell of the battery.

2. The method for producing an AA lithium ion battery according to claim 1.

3. A first through hole and a second through hole are formed in the upper steel shell of the battery, the first through hole is formed at one end of the upper steel shell close to the battery core, 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 producing an AA lithium ion battery according to claim 2.

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

2. The method for producing an AA lithium ion battery according to claim 1.

5. 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 the contact surface parameters to obtain 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.

2. The method for producing an AA lithium ion battery according to claim 1.

6. An apparatus for manufacturing AA-type lithium-ion batteries, comprising: a battery core manufacturing module for manufacturing and obtaining a battery core of a 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 bending parameters of the leaf springs, bending the negative leaf springs on the side of the PCB board downwards, so that the negative leaf springs are in elastic contact with the upper steel shell, bending the positive leaf springs on the bottom of the PCB board downwards, so that the positive leaf springs are in elastic 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 a 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 along the roll groove of the battery core, and wrapping an insulating film around the outside of the rolled and fixed semi-finished battery to obtain a finished battery; The bend characterization module includes: an analysis sub-module for inputting user needs and leaf spring property parameters into the pre-trained bending module for comparative analysis and obtaining analysis results; and a parameter determination submodule for 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.

1. A manufacturing apparatus for AA-type lithium-ion batteries.

7. The stamping module includes: A stamping parameter identification submodule for obtaining 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.

7. The apparatus for manufacturing AA-size lithium ion batteries according to claim 6.

8. 1. A computing device comprising a memory, a processor, and a computer program stored in the memory and executable by the processor, comprising: The processor, when executing the computer program, performs the steps of the method for manufacturing an AA lithium ion battery according to any one of claims 1 to 5.

1. A computer device comprising:

9. 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 5. A computer-readable storage medium comprising:

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