Battery pole static extrusion simulation analysis method and device, and computer storage medium

Abstract

The application discloses a battery pole static extrusion simulation analysis method and device, a computer storage medium, and can provide a new battery simulation analysis model for finite element simulation and parameter analysis to obtain a high-precision battery simulation analysis result. The battery simulation analysis model is simulated to obtain a target battery cover plate structure corresponding to a pole compression displacement simulation result. The simulation condition judgment operation is performed on the pole compression displacement simulation result. When the simulation condition is not met, the parameter adjustment correction operation is performed on the battery simulation analysis model until the pole compression displacement simulation result meets the simulation condition. The simulation accuracy and reliability of the battery simulation analysis model are improved, and the precision and reliability of the pole compression displacement simulation result obtained by simulating the battery simulation analysis model are improved, thereby improving the simulation accuracy and reliability of the battery pole compression extrusion, and further improving the user experience of the battery simulation analysis model.

Description

Technical Field

[0001] This invention relates to the field of battery simulation analysis technology, and in particular to a method and apparatus for static extrusion simulation analysis of battery terminals, as well as a computer storage medium. Background Technology

[0002] With the development of technology and the widespread use of batteries, the frequency of battery upgrades is increasing daily. In the current field of battery design upgrades, battery components are input into a battery simulation analysis model for finite element simulation and parametric analysis before production, achieving high-demand, low-waste battery design upgrades. However, current battery simulation analysis models do not perform reliability calibration before finite element simulation and parametric analysis, resulting in low accuracy of the battery simulation analysis results generated using these models. Therefore, providing a new battery simulation analysis model for finite element simulation and parametric analysis to solve this technical problem is particularly important. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a method and device for static extrusion simulation analysis of battery terminals and a computer storage medium, which can effectively solve the problem of low accuracy of battery simulation analysis results generated by existing battery simulation analysis models.

[0004] To address the aforementioned technical problems, the first aspect of this invention discloses a static extrusion simulation analysis method for battery terminals, the method comprising:

[0005] After setting the parameters of the battery simulation analysis model, the target battery cover structure is subjected to pole extrusion simulation operation through the battery simulation analysis model to obtain the pole compression displacement simulation results corresponding to the target battery cover structure.

[0006] Determine whether the simulation results of the pole compression displacement corresponding to the target battery cover structure meet the preset simulation conditions;

[0007] If the judgment result is negative, the parameters of the battery simulation analysis model are adjusted, and the operation of performing electrode compression simulation on the target battery cover structure through the battery simulation analysis model to obtain the electrode compression displacement simulation result corresponding to the target battery cover structure is re-executed, as well as the operation of judging whether the electrode compression displacement simulation result corresponding to the target battery cover structure meets the preset simulation conditions, until the electrode compression displacement simulation result corresponding to the target battery cover structure meets the simulation conditions.

[0008] As an optional implementation, in the first aspect of the present invention, the method further includes:

[0009] Based on the target battery cover structure to be simulated and analyzed, the initial parameter configuration information corresponding to the battery simulation analysis model is determined. The initial parameter configuration information is used to set the parameters of the battery simulation analysis model before the initial simulation.

[0010] And, the step of determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated includes:

[0011] Based on the target battery cover structure to be simulated and analyzed and the preset set of component performance requirements, determine the basic configuration information corresponding to each sub-performance requirement included in the set of component performance requirements;

[0012] Based on the basic configuration information corresponding to all the sub-performance requirements, determine the initial parameter configuration information corresponding to the battery simulation analysis model;

[0013] The component performance requirement set includes one or more of the following: material performance requirements, contact performance requirements, solid element partitioning requirements, and constraint performance requirements. The basic configuration information corresponding to the material performance requirements includes the material configuration information of each sub-component of the target battery cover structure. The basic configuration information corresponding to the contact performance requirements includes the contact configuration information between every two sub-components of the target battery cover structure. The basic configuration information corresponding to the solid element partitioning requirements includes the mesh partitioning configuration information of each sub-component of the target battery cover structure. The basic configuration information corresponding to the constraint performance requirements includes the constraint configuration information of each sub-component of the target battery cover structure.

[0014] As an optional implementation, in the first aspect of the present invention, the step of performing electrode compression simulation on the target battery cover structure using the battery simulation analysis model to obtain the electrode compression displacement simulation results corresponding to the target battery cover structure includes:

[0015] Based on the initial parameter configuration information and the set extrusion simulation requirements, determine the extrusion execution parameters corresponding to the battery simulation analysis model;

[0016] Based on the extrusion execution parameters, the pressure head component is controlled to perform electrode extrusion simulation operation on the target end face of the target battery cover structure, and the electrode extrusion simulation result corresponding to the target battery cover structure is obtained.

[0017] Based on the electrode extrusion simulation results, the electrode compression displacement simulation results corresponding to the target battery cover structure are determined.

[0018] As an optional implementation, in the first aspect of the present invention, determining the extrusion execution parameters corresponding to the battery simulation analysis model based on the initial parameter configuration information and the set extrusion simulation requirements includes:

[0019] Based on the initial parameter configuration information and the set simulation extrusion parameter requirements, the extrusion force information corresponding to the battery simulation analysis model is determined. The extrusion force information includes the extrusion force orientation information and / or extrusion force change information.

[0020] Based on the applied extrusion force information and the determined simulation extrusion execution requirements, the extrusion execution parameters corresponding to the battery simulation analysis model are determined.

[0021] As an optional implementation, in the first aspect of the present invention, the parameter adjustment operation of the battery simulation analysis model includes:

[0022] Based on the structural information of the target battery cover structure, the parameter information to be adjusted corresponding to the battery simulation analysis model is determined;

[0023] Based on the parameter information to be adjusted, the battery simulation analysis model is adjusted.

[0024] The battery simulation analysis model includes one or more of the following parameters: contact parameters, mesh-independent parameters, and boundary parameters.

[0025] As an optional implementation, in the first aspect of the present invention, before determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed, the method further includes:

[0026] Determine whether the target battery cover structure meets the preset geometric repair conditions;

[0027] When the judgment result is yes, a geometric repair operation is performed on the target battery cover structure to update the target battery cover structure, and the operation of determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed is executed.

[0028] If the judgment result is negative, the operation described above is performed to determine the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed.

[0029] As an optional implementation, in the first aspect of the present invention, determining whether the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the preset simulation conditions includes:

[0030] The displacement error value corresponding to the simulation result of the pole compression displacement of the target battery cover structure and the determined reference result of the pole compression displacement of the target battery cover structure is calculated.

[0031] Determine whether the displacement error value is within a preset allowable error range;

[0032] When the judgment result is yes, it is determined that the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the preset simulation conditions.

[0033] If the judgment result is negative, it is determined that the simulation result of the pole compression displacement corresponding to the target battery cover structure does not meet the preset simulation conditions.

[0034] A second aspect of this invention discloses a static extrusion simulation analysis device for battery terminals, characterized in that the device comprises:

[0035] The extrusion simulation module is used to perform electrode extrusion simulation on the target battery cover structure through the battery simulation analysis model after the parameters of the battery simulation analysis model are set, so as to obtain the simulation results of electrode compression displacement corresponding to the target battery cover structure.

[0036] The judgment module is used to determine whether the simulation results of the pole compression displacement corresponding to the target battery cover structure meet the preset simulation conditions.

[0037] The parameter adjustment module is used to adjust the parameters of the battery simulation analysis model when the judgment module determines that the simulation result of the pole compression displacement corresponding to the target battery cover structure does not meet the simulation conditions. This triggers the extrusion simulation module to re-execute the operation of performing pole extrusion simulation on the target battery cover structure using the battery simulation analysis model to obtain the simulation result of the pole compression displacement corresponding to the target battery cover structure, and to trigger the judgment module to re-execute the operation of determining whether the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the preset simulation conditions, until the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the simulation conditions.

[0038] As an optional implementation, in a second aspect of the invention, the apparatus further includes:

[0039] The parameter configuration module is used to determine the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed. The initial parameter configuration information is used to set the parameters of the battery simulation analysis model before the initial simulation.

[0040] Furthermore, the parameter configuration module determines the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed, specifically including the following methods:

[0041] Based on the target battery cover structure to be simulated and analyzed and the preset set of component performance requirements, determine the basic configuration information corresponding to each sub-performance requirement included in the set of component performance requirements;

[0042] Based on the basic configuration information corresponding to all the sub-performance requirements, determine the initial parameter configuration information corresponding to the battery simulation analysis model;

[0043] The component performance requirement set includes one or more of the following: material performance requirements, contact performance requirements, solid element partitioning requirements, and constraint performance requirements. The basic configuration information corresponding to the material performance requirements includes the material configuration information of each sub-component of the target battery cover structure. The basic configuration information corresponding to the contact performance requirements includes the contact configuration information between every two sub-components of the target battery cover structure. The basic configuration information corresponding to the solid element partitioning requirements includes the mesh partitioning configuration information of each sub-component of the target battery cover structure. The basic configuration information corresponding to the constraint performance requirements includes the constraint configuration information of each sub-component of the target battery cover structure.

[0044] As an optional implementation, in the second aspect of the present invention, the extrusion simulation module performs electrode extrusion simulation on the target battery cover structure using the battery simulation analysis model to obtain the electrode compression displacement simulation results corresponding to the target battery cover structure. Specifically, this includes:

[0045] Based on the initial parameter configuration information and the set extrusion simulation requirements, determine the extrusion execution parameters corresponding to the battery simulation analysis model;

[0046] Based on the extrusion execution parameters, the pressure head component is controlled to perform electrode extrusion simulation operation on the target end face of the target battery cover structure, and the electrode extrusion simulation result corresponding to the target battery cover structure is obtained.

[0047] Based on the electrode extrusion simulation results, the electrode compression displacement simulation results corresponding to the target battery cover structure are determined.

[0048] As an optional implementation, in the second aspect of the present invention, the method by which the extrusion simulation module determines the extrusion execution parameters corresponding to the battery simulation analysis model based on the initial parameter configuration information and the set extrusion simulation requirements specifically includes:

[0049] Based on the initial parameter configuration information and the set simulation extrusion parameter requirements, the extrusion force information corresponding to the battery simulation analysis model is determined. The extrusion force information includes the extrusion force orientation information and / or extrusion force change information.

[0050] Based on the applied extrusion force information and the determined simulation extrusion execution requirements, the extrusion execution parameters corresponding to the battery simulation analysis model are determined.

[0051] As an optional implementation, in the second aspect of the present invention, the parameter adjustment module performs parameter adjustment operations on the battery simulation analysis model in the following specific ways:

[0052] Based on the structural information of the target battery cover structure, the parameter information to be adjusted corresponding to the battery simulation analysis model is determined;

[0053] Based on the parameter information to be adjusted, the battery simulation analysis model is adjusted.

[0054] The battery simulation analysis model includes one or more of the following parameters: contact parameters, mesh-independent parameters, and boundary parameters.

[0055] As an optional implementation, in the second aspect of the present invention, the judgment module is further configured to determine whether the target battery cover structure meets the preset geometric repair conditions before the parameter configuration module determines the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed; when the judgment result is negative, the parameter configuration module is triggered to perform the operation of determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed.

[0056] The device further includes:

[0057] The geometric repair module is used to perform a geometric repair operation on the target battery cover structure when the judgment module determines that the target battery cover structure meets the geometric repair conditions, so as to update the target battery cover structure and trigger the parameter configuration module to execute the operation of determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed.

[0058] As an optional implementation, in the second aspect of the present invention, the method by which the judging module judges whether the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the preset simulation conditions specifically includes:

[0059] The displacement error value corresponding to the simulation result of the pole compression displacement of the target battery cover structure and the determined reference result of the pole compression displacement of the target battery cover structure is calculated.

[0060] Determine whether the displacement error value is within a preset allowable error range;

[0061] When the judgment result is yes, it is determined that the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the preset simulation conditions.

[0062] If the judgment result is negative, it is determined that the simulation result of the pole compression displacement corresponding to the target battery cover structure does not meet the preset simulation conditions.

[0063] A third aspect of this invention discloses another device for static extrusion simulation analysis of battery terminals, the device comprising:

[0064] Memory containing executable program code;

[0065] A processor coupled to the memory;

[0066] The processor calls the executable program code stored in the memory to execute the static extrusion simulation analysis method for battery terminals disclosed in the first aspect of the present invention.

[0067] The fourth aspect of the present invention discloses a computer storage medium storing computer instructions, which, when invoked, are used to execute the battery terminal static extrusion simulation analysis method disclosed in the first aspect of the present invention.

[0068] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0069] In this embodiment of the invention, after setting the parameters of the battery simulation analysis model, the battery simulation analysis model is used to perform a terminal extrusion simulation operation on the target battery cover structure to obtain the terminal compression displacement simulation result corresponding to the target battery cover structure; it is then determined whether the terminal compression displacement simulation result corresponding to the target battery cover structure meets the preset simulation conditions; if the determination result is negative, the parameters of the battery simulation analysis model are adjusted, and the operation of performing a terminal extrusion simulation operation on the target battery cover structure using the battery simulation analysis model to obtain the terminal compression displacement simulation result corresponding to the target battery cover structure and the operation of determining whether the terminal compression displacement simulation result corresponding to the target battery cover structure meets the preset simulation conditions are re-executed until the terminal compression displacement simulation result corresponding to the target battery cover structure meets the simulation conditions. As can be seen, this invention provides a new battery simulation analysis model for finite element simulation and parameter analysis to obtain highly accurate battery simulation analysis results. It performs a condition-based judgment operation on the simulated results of the terminal compression displacement corresponding to the target battery cover structure obtained through the battery simulation analysis model, and adjusts and corrects the parameters of the battery simulation analysis model when the simulation conditions are not met. This improves the simulation accuracy and reliability of the battery simulation analysis model, thereby enhancing the accuracy and reliability of the terminal compression displacement simulation results obtained through the battery simulation analysis model. This further improves the simulation accuracy and reliability of battery terminal compression and extrusion, and ultimately enhances the user experience of using the battery simulation analysis model. Attached Figure Description

[0070] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0071] Figure 1 This is a flowchart illustrating a static extrusion simulation analysis method for battery terminals disclosed in an embodiment of the present invention.

[0072] Figure 2 This is a flowchart illustrating another method for static extrusion simulation analysis of battery terminals disclosed in an embodiment of the present invention.

[0073] Figure 3 This is a schematic diagram of the structure of a battery terminal static extrusion simulation analysis device disclosed in an embodiment of the present invention;

[0074] Figure 4 This is a schematic diagram of another battery electrode static extrusion simulation analysis device disclosed in an embodiment of the present invention;

[0075] Figure 5 This is a schematic diagram of the structure of another battery electrode static extrusion simulation analysis device disclosed in the embodiments of the present invention. Detailed Implementation

[0076] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0077] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product, or end that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or ends.

[0078] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0079] This invention discloses a method and apparatus for static extrusion simulation analysis of battery terminals, as well as a computer storage medium. It provides a novel battery simulation analysis model for finite element simulation and parameter analysis to obtain highly accurate battery simulation analysis results. The method performs a condition-based judgment operation on the simulated results of the terminal compression displacement corresponding to the target battery cover structure obtained through the battery simulation analysis model. When the simulation conditions are not met, parameter adjustment and correction operations are performed on the battery simulation analysis model. This improves the simulation accuracy and reliability of the battery simulation analysis model, thereby enhancing the accuracy and reliability of the terminal compression displacement simulation results obtained through the battery simulation analysis model. This further improves the simulation accuracy and reliability of battery terminal compression and extrusion, and ultimately enhances the user experience of using the battery simulation analysis model. Detailed descriptions follow.

[0080] Example 1

[0081] Please see Figure 1 , Figure 1 This is a flowchart illustrating a static extrusion simulation analysis method for battery terminals disclosed in an embodiment of the present invention. Figure 1 The described method can be applied to a static extrusion simulation analysis device for battery terminals. This device may include a server, which can be a local server or a cloud server; this embodiment of the invention is not limited to any particular server. Figure 1 As shown, the static extrusion simulation analysis method for battery terminals includes the following operations:

[0082] 101. After setting the parameters of the battery simulation analysis model, the target battery cover structure is subjected to electrode compression simulation operation through the battery simulation analysis model to obtain the simulation results of electrode compression displacement corresponding to the target battery cover structure.

[0083] Optionally, the parameters of the battery simulation analysis model can be set manually or intelligently by the system. This embodiment of the invention does not limit the method.

[0084] 102. Determine whether the simulation results of the pole compression displacement corresponding to the target battery cover structure meet the preset simulation conditions.

[0085] Optionally, when it is determined that the simulation results of the pole compression displacement corresponding to the target battery cover structure meet the preset simulation conditions, the battery simulation analysis model is trained to convergence, and the obtained simulation analysis results have high accuracy and reliability. Furthermore, the battery simulation analysis model can be used for the development of new battery structures, and this embodiment of the invention does not limit it.

[0086] 103. When it is determined that the simulation result of the pole compression displacement corresponding to the target battery cover structure does not meet the simulation conditions, the parameters of the battery simulation analysis model are adjusted, and the operation of pole compression simulation of the target battery cover structure is re-executed through the battery simulation analysis model to obtain the simulation result of the pole compression displacement corresponding to the target battery cover structure, and to determine whether the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the preset simulation conditions, until the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the simulation conditions.

[0087] As can be seen, the battery terminal static extrusion simulation analysis method described in the embodiments of the present invention can provide a new battery simulation analysis model for finite element simulation and parameter analysis to obtain highly accurate battery simulation analysis results. The simulation results of the terminal compression displacement corresponding to the target battery cover structure obtained through the battery simulation analysis model are subjected to a condition-satisfaction judgment operation. When the simulation conditions are not met, the parameters of the battery simulation analysis model are adjusted and corrected. This is beneficial to improving the simulation accuracy and reliability of the battery simulation analysis model, and thus to improving the accuracy and reliability of the terminal compression displacement simulation results obtained through the battery simulation analysis model. This, in turn, improves the simulation accuracy and reliability of battery terminal compression and extrusion, and further enhances the user experience of the battery simulation analysis model.

[0088] Example 2

[0089] Please see Figure 2 , Figure 2 This is a flowchart illustrating another method for static extrusion simulation analysis of battery terminals disclosed in an embodiment of the present invention. Figure 2 The described method can be applied to a static extrusion simulation analysis device for battery terminals. This device may include a server, which can be a local server or a cloud server; this embodiment of the invention is not limited to any particular server. Figure 2 As shown, the static extrusion simulation analysis method for battery terminals includes the following operations:

[0090] 201. Based on the target battery cover structure to be simulated and analyzed, determine the initial parameter configuration information corresponding to the battery simulation analysis model. The initial parameter configuration information is used to set the parameters of the battery simulation analysis model before the initial simulation.

[0091] Optionally, the initial parameter configuration information can be determined manually based on the target battery cover structure to be simulated and analyzed, or it can be intelligently determined by the system in combination with the parameter configuration analysis conditions. This embodiment of the invention does not limit the information.

[0092] 202. After setting the parameters of the battery simulation analysis model, the target battery cover structure is subjected to pole extrusion simulation operation through the battery simulation analysis model to obtain the simulation results of pole compression displacement corresponding to the target battery cover structure.

[0093] 203. Determine whether the simulation results of the pole compression displacement corresponding to the target battery cover structure meet the preset simulation conditions.

[0094] 204. When it is determined that the simulation result of the pole compression displacement corresponding to the target battery cover structure does not meet the simulation conditions, the parameters of the battery simulation analysis model are adjusted, and the operation of pole compression simulation of the target battery cover structure is re-executed through the battery simulation analysis model to obtain the simulation result of the pole compression displacement corresponding to the target battery cover structure, and to determine whether the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the preset simulation conditions, until the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the simulation conditions.

[0095] In this embodiment of the invention, for other descriptions of steps 202-204, please refer to the other detailed descriptions of steps 101-103 in Embodiment 1. These descriptions will not be repeated in this embodiment of the invention.

[0096] As can be seen, the embodiments of the present invention can provide a new battery simulation analysis model for finite element simulation and parameter analysis to obtain highly accurate battery simulation analysis results. The simulation results of the electrode compression displacement corresponding to the target battery cover structure obtained through the battery simulation analysis model are subjected to a condition-satisfaction judgment operation. When the simulation conditions are not met, the parameters of the battery simulation analysis model are adjusted and corrected. This is beneficial to improving the simulation accuracy and reliability of the battery simulation analysis model, and thus to improving the accuracy and reliability of the electrode compression displacement simulation results obtained through the battery simulation analysis model. This further improves the simulation accuracy and reliability of battery electrode compression and extrusion, and enhances the user experience of the battery simulation analysis model. Furthermore, it can also provide an initial parameter configuration method, determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated, and then setting the parameters of the battery simulation analysis model. This is beneficial to improving the matching and relevance of the determined initial parameter configuration information with the target battery cover structure, and thus to improving the reliability and applicability of the determined initial parameter configuration information. This, in turn, is beneficial to improving the accuracy and reliability of the electrode compression displacement simulation results of the target battery cover structure obtained through the battery simulation analysis model.

[0097] In an optional embodiment, determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed may include:

[0098] Based on the target battery cover structure to be simulated and the preset set of component performance requirements, determine the basic configuration information corresponding to each sub-performance requirement included in the set of component performance requirements;

[0099] Based on the basic configuration information corresponding to all sub-performance requirements, determine the initial parameter configuration information corresponding to the battery simulation analysis model;

[0100] The component performance requirements set includes one or more of the following: material performance requirements, contact performance requirements, solid element partitioning requirements, and constraint performance requirements. The basic configuration information corresponding to the material performance requirements includes the material configuration information of each sub-component of the target battery cover structure. The basic configuration information corresponding to the contact performance requirements includes the contact configuration information between every two sub-components of the target battery cover structure. The basic configuration information corresponding to the solid element partitioning requirements includes the mesh partitioning configuration information of each sub-component of the target battery cover structure. The basic configuration information corresponding to the constraint performance requirements includes the constraint configuration information of each sub-component of the target battery cover structure.

[0101] Optionally, the above-mentioned determination of the initial parameter configuration information corresponding to the battery simulation analysis model based on the basic configuration information corresponding to all sub-performance requirements can be: directly determining the basic configuration information corresponding to all sub-performance requirements as the initial parameter configuration information corresponding to the battery simulation analysis model; or determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the basic configuration information corresponding to all sub-performance requirements and the set configuration information processing conditions; or other methods of generating initial parameter configuration information. This embodiment of the invention does not limit these methods.

[0102] Optionally, the sub-components corresponding to the target battery cover structure may include, but are not limited to, one or more of the following: aluminum sheet, upper plastic, pressing block, positive electrode post, pressing head, and other components; further, the basic configuration information corresponding to the material performance requirements may include, but is not limited to, the material configuration information of the aluminum sheet being AL-3003, the material configuration information of the upper plastic being PPS, the material configuration information of the pressing block being AL-1060, the material configuration information of the positive electrode post being AL-1060, and the material configuration information of the pressing head being structural steel and set as a rigid body; further, the basic configuration information corresponding to the contact performance requirements may include, but is not limited to, the contact configuration information of the pressing block and the positive electrode post being a bonding method, the contact configuration information of the pressing block and the upper plastic being frictional contact with a friction coefficient of 0.2, the contact configuration information of the upper plastic and the aluminum sheet being frictional contact with a friction coefficient of 0.2, and the contact configuration information of the pressing head and the positive electrode post being... The information is set as frictional contact with a friction coefficient of 0.2; further, the basic configuration information corresponding to the solid unit division requirements may include, but is not limited to, the mesh division configuration information of the upper plastic, the pressing block, and the positive electrode post, all of which adopt hexahedral elements Solid186 for structural division, and the mesh division configuration information of the aluminum sheet adopts quadrilateral solid elements Solid187 for mesh division, with a total number of meshes of 65679; further, the basic configuration information corresponding to the constraint performance requirements can define the force scene boundary according to the actual working conditions to constrain the six degrees of freedom of the surfaces around the aluminum sheet, that is, the three axial degrees of freedom of the solid unit are fully constrained on the surface A around the aluminum sheet, the direction B of the remote force applied by the pressure head is the same as the normal direction of the positive electrode post end face and the magnitude is 500N, and the pressure head translates in one degree of freedom in the direction normal to the aluminum sheet. This embodiment of the invention is not limited.

[0103] Further optionally, in addition to setting the density, elastic modulus and Poisson's ratio of the sub-component, the basic configuration information corresponding to the material performance requirements may also include the plastic stage curve of the sub-component (such as a light aluminum sheet). The plastic curve can be obtained by processing the stress-strain data obtained from the tensile test, which can completely describe the elastic-plastic process of the sub-component deformation. This embodiment of the invention does not limit this.

[0104] Further optionally, the parameter setting method for the basic configuration information corresponding to the material performance requirements can be to open Ansys-Workbench, select the Static Structural module and enter the Engineering Data node, select the Density-Isotropic Elasticity material characteristic property to determine the material configuration information such as the density, elastic modulus and Poisson's ratio of the sub-component, and select Multilinear Isotropic Hardening in Engineering Data to determine the tensile measured stress-strain curve of the sub-component to establish its plastic stage curve. This embodiment of the invention does not limit the method.

[0105] Further, optionally, the parameter setting method for the basic configuration information corresponding to the contact performance requirements can be to determine the contact configuration information between different sub-components by entering the Connections under the Model node. This embodiment of the invention does not limit this.

[0106] Alternatively, the parameter setting method for the basic configuration information corresponding to the solid unit division requirement can be to enter the Mesh under the Model node, set the Element Type to the unit type Solid186, set the Element Size to 1mm, and set the total number of meshes to 65679, so as to determine the mesh division configuration information of the sub-component. This embodiment of the invention does not limit this.

[0107] Further optional, the parameter setting method for the basic configuration information corresponding to the constraint performance requirements can be to enter the Static Structural under the Model node, apply Fixed Supported constraints to the surfaces around the aluminum sheet, apply Remote Displacement constraints to the pressure head, constrain the degrees of freedom of the pressure head except for the normal translation, and apply a force of Force = 500N in the normal direction pointing to the side of the aluminum sheet. This embodiment of the invention does not limit this.

[0108] It should be noted that the basic configuration information and other example data values ​​mentioned in the embodiments can be set to other parameters according to actual needs, and the embodiments of the present invention do not limit them.

[0109] As can be seen, this optional embodiment can provide one or more sub-performance requirements, and determine the initial parameter configuration information corresponding to the battery simulation analysis model based on the basic configuration information corresponding to the determined one or more sub-performance requirements. The determination methods for the basic configuration information corresponding to different sub-performance requirements are different, which is conducive to improving the diversity and comprehensiveness of the basic configuration information, as well as the pertinence and matching of the determination method of the basic configuration information, and thus conducive to the accuracy and reliability of the initial parameter configuration information corresponding to the battery simulation analysis model.

[0110] In another optional embodiment, the above-mentioned simulation operation of electrode compression on the target battery cover structure using a battery simulation analysis model to obtain the simulation results of electrode compression displacement corresponding to the target battery cover structure may include:

[0111] Based on the initial parameter configuration information and the set extrusion simulation requirements, determine the extrusion execution parameters corresponding to the battery simulation analysis model;

[0112] Based on the extrusion execution parameters, the pressure head component is controlled to perform electrode extrusion simulation operation on the target end face of the target battery cover structure, and the electrode extrusion simulation results corresponding to the target battery cover structure are obtained.

[0113] Based on the electrode extrusion simulation results, the electrode compression displacement simulation results corresponding to the target battery cover structure are determined.

[0114] Optionally, based on the extrusion execution parameters, the pressure head component is controlled to perform a terminal extrusion simulation operation on the target end face of the target battery cover structure to obtain the terminal extrusion simulation result corresponding to the target battery cover structure. For example, the pressure head component is controlled to press down on the positive or negative electrode surface of the cover plate terminal based on the extrusion execution parameters of 100N per load, 10s of pressure holding, and a maximum force of 500N to obtain the terminal extrusion simulation result corresponding to the target battery cover structure. This embodiment of the invention does not limit the scope of the invention.

[0115] Optionally, the above-mentioned determination of the electrode compression displacement simulation result corresponding to the target battery cover structure based on the electrode extrusion simulation result can be: calculating the extrusion change displacement value corresponding to the target battery cover structure based on the electrode extrusion simulation result and the basic electrode simulation result corresponding to the target battery cover structure, and using it as the electrode compression displacement simulation result corresponding to the target battery cover structure. This embodiment of the invention does not limit this.

[0116] As can be seen, this optional embodiment can determine the extrusion execution parameters corresponding to the battery simulation analysis model, and perform the electrode extrusion simulation operation based on the extrusion execution parameters to obtain the electrode extrusion simulation results, and further obtain the electrode compression displacement simulation results corresponding to the target battery cover structure. This is beneficial to improving the comprehensiveness and rationality of the electrode compression displacement simulation result determination method, and thus beneficial to improving the accuracy and reliability of the determined electrode compression displacement simulation results, thereby improving the simulation accuracy and reliability of electrode compression displacement.

[0117] In another optional embodiment, determining the extrusion execution parameters corresponding to the battery simulation analysis model based on the initial parameter configuration information and the set extrusion simulation requirements may include:

[0118] Based on the initial parameter configuration information and the set simulation extrusion parameter requirements, determine the extrusion force information corresponding to the battery simulation analysis model. The extrusion force information includes the extrusion force orientation information and / or extrusion force change information.

[0119] Based on the information on the applied extrusion force and the determined simulation extrusion execution requirements, the extrusion execution parameters corresponding to the battery simulation analysis model are determined.

[0120] Optionally, the simulation extrusion parameter requirements can be the analysis method and determination conditions for the extrusion force parameters of the pressure head component used to generate and set the battery simulation analysis model for specific extrusion operations. This embodiment of the invention does not limit these requirements.

[0121] Optionally, the compressive force orientation information can be one or more of the following: compressive force direction information, angle information, contact point information, and other force orientation information. This embodiment of the invention does not limit the information.

[0122] Optionally, the information on the change in the applied compressive force can be one or more of the following: information on the change in the magnitude of the applied compressive force, information on the relationship between the magnitude of the force and the change in time (such as applying 100N of pressure for 10 seconds, holding for 10 seconds and applying 100N of force), information on the frequency of force changes, information on the upper and lower limits of the force, information on the range of the force, etc. The embodiments of the present invention do not limit this.

[0123] Optionally, the simulation extrusion execution requirements can be the analysis and generation method of the execution parameters used to control the pressure head component of the battery simulation analysis model to perform specific extrusion operations, and this embodiment of the invention does not limit it.

[0124] As can be seen, this optional embodiment can determine the applied extrusion force information based on the simulation extrusion parameter requirements and simulation extrusion execution requirements, and further determine the extrusion execution parameters corresponding to the battery simulation analysis model. This is beneficial to improving the comprehensiveness and rationality of the extrusion execution parameter determination method, and thus beneficial to improving the accuracy and reliability of the determined extrusion execution parameters, thereby improving the accuracy and reliability of the extrusion simulation based on the extrusion execution parameters.

[0125] In yet another optional embodiment, the above-described parameter adjustment operation for the battery simulation analysis model may include:

[0126] Based on the structural information of the target battery cover structure, determine the parameter information to be adjusted for the battery simulation analysis model;

[0127] Based on the parameter information to be adjusted, perform parameter adjustment operations on the battery simulation analysis model;

[0128] The parameter information to be adjusted for the battery simulation analysis model includes one or more of the following: contact parameter information, mesh-independent parameter information, and boundary parameter information.

[0129] Optionally, the above-mentioned determination of the adjustable parameter information corresponding to the battery simulation analysis model based on the structural information of the determined target battery cover structure is illustrated by, for example: the structural condition of the target battery cover structure is determined based on the structural information of the determined target battery cover structure, and the adjustable parameter information corresponding to the battery simulation analysis model is determined based on the structural condition; furthermore, when the structural condition is used to indicate that the target battery cover structure meets the set boundary correction triggering conditions (such as the structural complexity being higher than the complexity threshold), the adjustable parameter information corresponding to the battery simulation analysis model is determined to include boundary parameter information, which is not limited in this embodiment of the invention.

[0130] Optionally, the above-mentioned parameter adjustment operation is performed on the battery simulation analysis model based on the parameter information to be adjusted. For example, when the parameter information to be adjusted includes mesh-independent parameter information, a mesh-independent operation is performed to make the accuracy of the pole compression displacement simulation result independent of the number of grids drawn. This embodiment of the invention does not limit this.

[0131] As can be seen, this optional embodiment can determine one or more parameters to be adjusted and perform parameter adjustment operations on the battery simulation analysis model based on the parameters to be adjusted. This is beneficial to improving the comprehensiveness and rationality of the parameter adjustment method of the battery simulation analysis model, as well as the diversity and flexibility of the parameters to be adjusted. This, in turn, is beneficial to improving the accuracy and reliability of the parameter adjustment of the battery simulation analysis model, thereby improving the correction efficiency and effectiveness of the battery simulation analysis model.

[0132] In yet another optional embodiment, before determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed, the method may further include the following operations:

[0133] Determine whether the target battery cover structure meets the preset geometric repair conditions;

[0134] When the judgment result is yes, perform a geometric repair operation on the target battery cover structure to update the target battery cover structure, and execute the above operation of determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed.

[0135] If the judgment result is negative, perform the above operation to determine the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed.

[0136] Optionally, the above-mentioned geometric repair operation on the target battery cover structure may involve importing the battery cover geometric model and the component geometric model of the battery cover structure into the geometric repair module of the finite element software for point, line, and surface geometric repair processing; furthermore, the geometric repair module of the finite element software may be attached to the battery simulation analysis model or may be independent of the battery simulation analysis model, and this embodiment of the invention does not impose any limitations.

[0137] Optionally, the specific implementation of the above-mentioned geometric repair operation on the target battery cover structure may involve importing the geometric model of the target battery cover structure into the Geometry node, opening the geometric model of the target battery cover structure based on Spaceclaim software, and performing repair to remove non-feature lines, points, and surfaces on the geometric model. Furthermore, the Geometry node and Spaceclaim software involved in the geometric repair operation may be attached to the battery simulation analysis model or may be separate from the battery simulation analysis model. This embodiment of the invention does not impose any limitations.

[0138] As can be seen, this optional embodiment can provide a geometric repair method for the target battery cover structure. When it is determined that the target battery cover structure meets the geometric repair conditions, a geometric repair operation is performed to update the target battery cover structure. This is beneficial to improving the comprehensiveness and integrity of the static extrusion simulation analysis method of the battery terminal post, and thus beneficial to improving the accuracy and applicability of the target battery cover structure. In turn, it is beneficial to improve the accuracy and reliability of the initial parameter configuration information determined based on the target battery cover structure.

[0139] In another optional embodiment, the above-mentioned determination of whether the target battery cover structure meets the preset geometric repair conditions may include:

[0140] Based on the determined geometric information of the target battery cover structure, analyze the geometric repair requirements corresponding to the target battery cover structure, and determine the repair urgency of the target battery cover structure based on the geometric repair requirements.

[0141] Determine whether the repair urgency is greater than or equal to the preset repair urgency threshold;

[0142] When the judgment result is yes, it is determined that the target battery cover structure meets the preset geometric repair conditions;

[0143] If the judgment result is negative, it is determined that the target battery cover structure does not meet the preset geometric repair conditions.

[0144] Optionally, the above-mentioned determination of whether the target battery cover structure meets the preset geometric repair conditions may further include: determining the repair impact degree corresponding to the target battery cover structure according to the geometric repair requirements; determining whether the repair impact degree is greater than or equal to a preset repair impact degree threshold; when the determination result is yes, determining that the target battery cover structure meets the preset geometric repair conditions; when the determination result is no, determining that the target battery cover structure does not meet the preset geometric repair conditions. This embodiment of the invention does not impose any limitations.

[0145] Optionally, the above-mentioned analysis of the geometric repair requirements corresponding to the target battery cover structure based on the determined geometric information of the target battery cover structure may include: determining the geometric repair requirements corresponding to the target battery cover structure based on the determined geometric information of the target battery cover structure and the set geometric repair analysis method. This embodiment of the invention does not limit this.

[0146] As can be seen, this optional embodiment can determine the repair urgency corresponding to the target battery cover structure, and determine the result of satisfying the geometric repair conditions based on the comparison between the repair urgency and the repair urgency threshold. This is beneficial to improving the comprehensiveness and rationality of the method for determining the result of satisfying the geometric repair conditions, and thus improving the accuracy and reliability of the determined result of satisfying the geometric repair conditions.

[0147] In another optional embodiment, the determination of whether the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the preset simulation conditions may include:

[0148] The displacement error value corresponding to the simulation result of the pole compression displacement corresponding to the target battery cover structure and the determined reference result of the pole compression displacement corresponding to the target battery cover structure is calculated.

[0149] Determine whether the displacement error value is within the preset allowable error range;

[0150] When the judgment result is yes, the simulation result of the pole compression displacement corresponding to the target battery cover structure is determined to meet the preset simulation conditions.

[0151] When the judgment result is negative, it is determined that the simulation result of the pole compression displacement corresponding to the target battery cover structure does not meet the preset simulation conditions.

[0152] Optionally, the allowable error range can be set to (-5%, 5%), or it can be set to other range values ​​according to actual needs. This embodiment of the invention does not limit this.

[0153] As can be seen, this optional embodiment can determine the displacement error value corresponding to the simulation result of pole compression displacement, and determine the result of meeting the simulation conditions based on the relationship between the displacement error value and the allowable error range. This is beneficial to improving the comprehensiveness and rationality of the method for determining the result of meeting the simulation conditions, and thus to improving the accuracy and reliability of the determined result of meeting the simulation conditions.

[0154] Example 3

[0155] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of a battery electrode static extrusion simulation analysis device disclosed in an embodiment of the present invention. Figure 3 The described apparatus may include a server, wherein the server includes a local server or a cloud server, and the embodiments of the present invention are not limited thereto. Figure 3 As shown, the battery terminal static extrusion simulation analysis device may include:

[0156] The extrusion simulation module 301 is used to perform electrode extrusion simulation on the target battery cover structure through the battery simulation analysis model after the parameters of the battery simulation analysis model are set, so as to obtain the simulation results of electrode compression displacement corresponding to the target battery cover structure.

[0157] The judgment module 302 is used to determine whether the simulation results of the pole compression displacement corresponding to the target battery cover structure meet the preset simulation conditions.

[0158] The parameter adjustment module 303 is used to adjust the parameters of the battery simulation analysis model when the judgment module 302 determines that the simulation result of the pole compression displacement corresponding to the target battery cover structure does not meet the simulation conditions. It also triggers the extrusion simulation module 301 to re-execute the above-mentioned operation of performing pole extrusion simulation on the target battery cover structure through the battery simulation analysis model to obtain the simulation result of the pole compression displacement corresponding to the target battery cover structure, and triggers the judgment module 302 to re-execute the above-mentioned operation of judging whether the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the preset simulation conditions, until the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the simulation conditions.

[0159] It is evident that implementation Figure 3The described battery terminal static extrusion simulation analysis device provides a new battery simulation analysis model for finite element simulation and parameter analysis to obtain highly accurate battery simulation analysis results. It performs a condition-based judgment operation on the terminal compression displacement simulation results corresponding to the target battery cover structure obtained through the battery simulation analysis model, and adjusts and corrects the parameters of the battery simulation analysis model when the simulation conditions are not met. This improves the simulation accuracy and reliability of the battery simulation analysis model, thereby enhancing the accuracy and reliability of the terminal compression displacement simulation results obtained through the battery simulation analysis model. Ultimately, this improves the simulation accuracy and reliability of battery terminal compression and extrusion, and further enhances the user experience of using the battery simulation analysis model.

[0160] In an optional embodiment, such as Figure 4 As shown, the device may further include:

[0161] The parameter configuration module 304 is used to determine the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed. The initial parameter configuration information is used to set the parameters of the battery simulation analysis model before the initial simulation.

[0162] It is evident that implementation Figure 4 The described device can provide an initial parameter configuration method, determine the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed, and then set the parameters of the battery simulation analysis model. This helps to improve the matching and relevance of the determined initial parameter configuration information with the target battery cover structure, thereby improving the reliability and applicability of the determined initial parameter configuration information. In turn, it helps to improve the accuracy and reliability of the pole compression displacement simulation results of the target battery cover structure obtained through the battery simulation analysis model.

[0163] In another optional embodiment, the parameter configuration module 304 determines the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed, specifically including the following methods:

[0164] Based on the target battery cover structure to be simulated and the preset set of component performance requirements, determine the basic configuration information corresponding to each sub-performance requirement included in the set of component performance requirements;

[0165] Based on the basic configuration information corresponding to all sub-performance requirements, determine the initial parameter configuration information corresponding to the battery simulation analysis model;

[0166] The component performance requirements set includes one or more of the following: material performance requirements, contact performance requirements, solid element partitioning requirements, and constraint performance requirements. The basic configuration information corresponding to the material performance requirements includes the material configuration information of each sub-component of the target battery cover structure. The basic configuration information corresponding to the contact performance requirements includes the contact configuration information between every two sub-components of the target battery cover structure. The basic configuration information corresponding to the solid element partitioning requirements includes the mesh partitioning configuration information of each sub-component of the target battery cover structure. The basic configuration information corresponding to the constraint performance requirements includes the constraint configuration information of each sub-component of the target battery cover structure.

[0167] It is evident that implementation Figure 4 The described device can also provide one or more sub-performance requirements and determine the initial parameter configuration information corresponding to the battery simulation analysis model based on the basic configuration information corresponding to the determined one or more sub-performance requirements. The determination method of the basic configuration information corresponding to different sub-performance requirements is different, which is conducive to improving the diversity and comprehensiveness of the basic configuration information, as well as the pertinence and matching of the determination method of the basic configuration information, and thus conducive to the accuracy and reliability of the initial parameter configuration information corresponding to the battery simulation analysis model.

[0168] In another optional embodiment, the extrusion simulation module 301 performs electrode extrusion simulation on the target battery cover structure using a battery simulation analysis model to obtain the electrode compression displacement simulation results corresponding to the target battery cover structure. Specifically, this includes:

[0169] Based on the initial parameter configuration information and the set extrusion simulation requirements, determine the extrusion execution parameters corresponding to the battery simulation analysis model;

[0170] Based on the extrusion execution parameters, the pressure head component is controlled to perform electrode extrusion simulation operation on the target end face of the target battery cover structure, and the electrode extrusion simulation results corresponding to the target battery cover structure are obtained.

[0171] Based on the electrode extrusion simulation results, the electrode compression displacement simulation results corresponding to the target battery cover structure are determined.

[0172] It is evident that implementation Figure 4 The described device can also determine the extrusion execution parameters corresponding to the battery simulation analysis model, and perform pole extrusion simulation operation based on the extrusion execution parameters to obtain pole extrusion simulation results. Furthermore, it can obtain the pole compression displacement simulation results corresponding to the target battery cover structure, which helps to improve the comprehensiveness and rationality of the pole compression displacement simulation result determination method, and thus helps to improve the accuracy and reliability of the determined pole compression displacement simulation results, thereby improving the simulation accuracy and reliability of pole compression displacement.

[0173] In another optional embodiment, the method by which the extrusion simulation module 301 determines the extrusion execution parameters corresponding to the battery simulation analysis model based on the initial parameter configuration information and the set extrusion simulation requirements specifically includes:

[0174] Based on the initial parameter configuration information and the set simulation extrusion parameter requirements, determine the extrusion force information corresponding to the battery simulation analysis model. The extrusion force information includes the extrusion force orientation information and / or extrusion force change information.

[0175] Based on the information on the applied extrusion force and the determined simulation extrusion execution requirements, the extrusion execution parameters corresponding to the battery simulation analysis model are determined.

[0176] It is evident that implementation Figure 4 The described device can also determine the applied extrusion force information based on the simulation extrusion parameter requirements and simulation extrusion execution requirements, and further determine the extrusion execution parameters corresponding to the battery simulation analysis model. This helps to improve the comprehensiveness and rationality of the extrusion execution parameter determination method, and thus helps to improve the accuracy and reliability of the determined extrusion execution parameters, thereby improving the accuracy and reliability of extrusion simulation based on the extrusion execution parameters.

[0177] In yet another optional embodiment, the parameter adjustment module 303 performs parameter adjustment operations on the battery simulation analysis model in the following specific ways:

[0178] Based on the structural information of the target battery cover structure, determine the parameter information to be adjusted for the battery simulation analysis model;

[0179] Based on the parameter information to be adjusted, perform parameter adjustment operations on the battery simulation analysis model;

[0180] The parameter information to be adjusted for the battery simulation analysis model includes one or more of the following: contact parameter information, mesh-independent parameter information, and boundary parameter information.

[0181] It is evident that implementation Figure 4 The described device can also determine one or more parameters to be adjusted and perform parameter adjustment operations on the battery simulation analysis model based on the parameters to be adjusted. This is beneficial to improving the comprehensiveness and rationality of the parameter adjustment method of the battery simulation analysis model, as well as the diversity and flexibility of the parameters to be adjusted. This, in turn, is beneficial to improving the accuracy and reliability of the parameter adjustment of the battery simulation analysis model, thereby improving the correction efficiency and effectiveness of the battery simulation analysis model.

[0182] In another optional embodiment, the judgment module 302 is further configured to determine whether the target battery cover structure meets the preset geometric repair conditions before the parameter configuration module 304 determines the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed; when the judgment result is negative, the parameter configuration module 304 is triggered to perform the above-mentioned operation of determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed.

[0183] And, such as Figure 4 As shown, the device may further include:

[0184] The geometric repair module 305 is used to perform geometric repair operations on the target battery cover structure when the judgment module 302 determines that the target battery cover structure meets the geometric repair conditions, so as to update the target battery cover structure and trigger the parameter configuration module 304 to perform the above-mentioned operation of determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed.

[0185] It is evident that implementation Figure 4 The described device can also provide a geometric repair method for the target battery cover structure. When it is determined that the target battery cover structure meets the geometric repair conditions, a geometric repair operation is performed to update the target battery cover structure. This is beneficial to improving the comprehensiveness and integrity of the static extrusion simulation analysis method of the battery terminal post, which in turn is beneficial to improving the accuracy and applicability of the target battery cover structure. This, in turn, is beneficial to improving the accuracy and reliability of the initial parameter configuration information determined based on the target battery cover structure.

[0186] In another optional embodiment, the method by which the determination module 302 determines whether the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the preset simulation conditions specifically includes:

[0187] The displacement error value corresponding to the simulation result of the pole compression displacement corresponding to the target battery cover structure and the determined reference result of the pole compression displacement corresponding to the target battery cover structure is calculated.

[0188] Determine whether the displacement error value is within the preset allowable error range;

[0189] When the judgment result is yes, the simulation result of the pole compression displacement corresponding to the target battery cover structure is determined to meet the preset simulation conditions.

[0190] When the judgment result is negative, it is determined that the simulation result of the pole compression displacement corresponding to the target battery cover structure does not meet the preset simulation conditions.

[0191] It is evident that implementation Figure 4The described device can also determine the displacement error value corresponding to the simulation result of pole compression displacement, and determine the result of meeting the simulation conditions based on the relationship between the displacement error value and the allowable error range. This helps to improve the comprehensiveness and rationality of the method for determining the result of meeting the simulation conditions, and thus helps to improve the accuracy and reliability of the determined result of meeting the simulation conditions.

[0192] Example 4

[0193] Please see Figure 5 , Figure 5 This is a schematic diagram of the structure of another battery electrode static extrusion simulation analysis device disclosed in an embodiment of the present invention. Wherein, Figure 5 The described apparatus may include a server, wherein the server includes a local server or a cloud server, and the embodiments of the present invention are not limited thereto. Figure 5 As shown, the device may include:

[0194] Memory 401 storing executable program code;

[0195] Processor 402 coupled to memory 401;

[0196] Furthermore, it may also include an input interface 403 and an output interface 404 coupled to the processor 402; wherein, the processor 402 calls the executable program code stored in the memory 401 to execute the steps in the battery terminal static extrusion simulation analysis method described in Embodiment 1 or Embodiment 2.

[0197] Example 5

[0198] This invention discloses a computer storage medium that stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the steps in the battery terminal static extrusion simulation analysis method described in Embodiment 1 or Embodiment 2.

[0199] Example 6

[0200] This invention discloses a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform the steps in the battery terminal static extrusion simulation analysis method described in Embodiment 1 or Embodiment 2.

[0201] The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0202] Through the detailed description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, including read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-Erasable Programmable Read-Only Memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0203] Finally, it should be noted that the battery terminal static extrusion simulation analysis method and apparatus and computer storage medium disclosed in the embodiments of the present invention are only preferred embodiments of the present invention, and are only used to illustrate the technical solutions of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A simulation analysis method for static extrusion of battery terminals, characterized in that, The method includes: After setting the parameters of the battery simulation analysis model, the target battery cover structure is subjected to pole extrusion simulation operation through the battery simulation analysis model to obtain the pole compression displacement simulation results corresponding to the target battery cover structure. Determine whether the simulation results of the pole compression displacement corresponding to the target battery cover structure meet the preset simulation conditions; When the judgment result is negative, the parameters of the battery simulation analysis model are adjusted, and the operation of performing electrode compression simulation on the target battery cover structure through the battery simulation analysis model to obtain the electrode compression displacement simulation result corresponding to the target battery cover structure is re-executed, as well as the operation of judging whether the electrode compression displacement simulation result corresponding to the target battery cover structure meets the preset simulation conditions, until the electrode compression displacement simulation result corresponding to the target battery cover structure meets the simulation conditions. The parameter adjustment operation for the battery simulation analysis model includes: Based on the structural information of the determined target battery cover structure, the parameter information to be adjusted corresponding to the battery simulation analysis model is determined; based on the parameter information to be adjusted, the battery simulation analysis model is adjusted; wherein, the parameter information to be adjusted corresponding to the battery simulation analysis model includes one or more of contact parameter information, mesh-independent parameter information, and boundary parameter information. When the structural complexity of the target battery cover structure is higher than the complexity threshold, the parameter information to be adjusted corresponding to the battery simulation analysis model is determined to include boundary parameter information. The mesh-independent parameter information is used to perform mesh-independent operation so that the accuracy of the pole compression displacement simulation result is independent of the number of grids drawn.

2. The static extrusion simulation analysis method for battery terminals according to claim 1, characterized in that, The method further includes: Based on the target battery cover structure to be simulated and analyzed, the initial parameter configuration information corresponding to the battery simulation analysis model is determined. The initial parameter configuration information is used to set the parameters of the battery simulation analysis model before the initial simulation. And, the step of determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated includes: Based on the target battery cover structure to be simulated and analyzed and the preset set of component performance requirements, determine the basic configuration information corresponding to each sub-performance requirement included in the set of component performance requirements; Based on the basic configuration information corresponding to all the sub-performance requirements, determine the initial parameter configuration information corresponding to the battery simulation analysis model; The component performance requirement set includes one or more of the following: material performance requirements, contact performance requirements, solid element partitioning requirements, and constraint performance requirements. The basic configuration information corresponding to the material performance requirements includes the material configuration information of each sub-component of the target battery cover structure. The basic configuration information corresponding to the contact performance requirements includes the contact configuration information between every two sub-components of the target battery cover structure. The basic configuration information corresponding to the solid element partitioning requirements includes the mesh partitioning configuration information of each sub-component of the target battery cover structure. The basic configuration information corresponding to the constraint performance requirements includes the constraint configuration information of each sub-component of the target battery cover structure.

3. The static extrusion simulation analysis method for battery terminals according to claim 2, characterized in that, The step of performing electrode compression simulation on the target battery cover structure using the battery simulation analysis model to obtain the simulation results of electrode compression displacement corresponding to the target battery cover structure includes: Based on the initial parameter configuration information and the set extrusion simulation requirements, determine the extrusion execution parameters corresponding to the battery simulation analysis model; Based on the extrusion execution parameters, the pressure head component is controlled to perform electrode extrusion simulation operation on the target end face of the target battery cover structure, and the electrode extrusion simulation result corresponding to the target battery cover structure is obtained. Based on the electrode extrusion simulation results, the electrode compression displacement simulation results corresponding to the target battery cover structure are determined.

4. The static extrusion simulation analysis method for battery terminals according to claim 3, characterized in that, The step of determining the extrusion execution parameters corresponding to the battery simulation analysis model based on the initial parameter configuration information and the set extrusion simulation requirements includes: Based on the initial parameter configuration information and the set simulation extrusion parameter requirements, the extrusion force information corresponding to the battery simulation analysis model is determined. The extrusion force information includes the extrusion force orientation information and / or extrusion force change information. Based on the applied extrusion force information and the determined simulation extrusion execution requirements, the extrusion execution parameters corresponding to the battery simulation analysis model are determined.

5. The static extrusion simulation analysis method for battery terminals according to claim 4, characterized in that, Before determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed, the method further includes: Determine whether the target battery cover structure meets the preset geometric repair conditions; When the judgment result is yes, a geometric repair operation is performed on the target battery cover structure to update the target battery cover structure, and the operation of determining the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed is executed. If the judgment result is negative, the operation described above is performed to determine the initial parameter configuration information corresponding to the battery simulation analysis model based on the target battery cover structure to be simulated and analyzed.

6. The static extrusion simulation analysis method for battery terminals according to claim 5, characterized in that, The step of determining whether the simulation results of the pole compression displacement corresponding to the target battery cover structure meet the preset simulation conditions includes: The displacement error value corresponding to the simulation result of the pole compression displacement of the target battery cover structure and the determined reference result of the pole compression displacement of the target battery cover structure is calculated. Determine whether the displacement error value is within a preset allowable error range; When the judgment result is yes, it is determined that the simulation result of the pole compression displacement corresponding to the target battery cover structure meets the preset simulation conditions. If the judgment result is negative, it is determined that the simulation result of the pole compression displacement corresponding to the target battery cover structure does not meet the preset simulation conditions.

7. A simulation analysis device for static extrusion of battery terminals, characterized in that, The device includes: The extrusion simulation module is used to perform electrode extrusion simulation on the target battery cover structure through the battery simulation analysis model after the parameters of the battery simulation analysis model are set, so as to obtain the simulation results of electrode compression displacement corresponding to the target battery cover structure. The judgment module is used to determine whether the simulation results of the pole compression displacement corresponding to the target battery cover structure meet the preset simulation conditions. The parameter adjustment module is used to adjust the parameters of the battery simulation analysis model when the judgment module determines that the simulation result of the electrode compression displacement corresponding to the target battery cover structure does not meet the simulation conditions. This triggers the extrusion simulation module to re-execute the operation of performing electrode extrusion simulation on the target battery cover structure using the battery simulation analysis model to obtain the simulation result of the electrode compression displacement corresponding to the target battery cover structure, and to trigger the judgment module to re-execute the operation of determining whether the simulation result of the electrode compression displacement corresponding to the target battery cover structure meets the preset simulation conditions, until the simulation result of the electrode compression displacement corresponding to the target battery cover structure meets the simulation conditions. The parameter adjustment module is used to adjust the parameters of the battery simulation analysis model when the judgment module determines that the simulation result of the electrode compression displacement corresponding to the target battery cover structure does not meet the simulation conditions. The parameter adjustment operation of the analysis model includes: determining the parameter information to be adjusted corresponding to the battery simulation analysis model based on the structural information of the target battery cover structure; and performing parameter adjustment operation on the battery simulation analysis model based on the parameter information to be adjusted. The parameter information to be adjusted corresponding to the battery simulation analysis model includes one or more of contact parameter information, mesh-independent parameter information, and boundary parameter information. When the structural complexity of the target battery cover structure is higher than a complexity threshold, the parameter information to be adjusted corresponding to the battery simulation analysis model includes boundary parameter information. The mesh-independent parameter information is used to perform a mesh-independent operation so that the accuracy of the pole compression displacement simulation result is independent of the number of grids drawn.

8. A static extrusion simulation analysis device for battery terminals, characterized in that, The device includes: Memory containing executable program code; A processor coupled to the memory; The processor calls the executable program code stored in the memory to execute the static extrusion simulation analysis method for battery terminals as described in any one of claims 1-6.

9. A computer storage medium, characterized in that, The computer storage medium stores computer instructions, which, when invoked, are used to execute the static extrusion simulation analysis method for battery terminals as described in any one of claims 1-6.

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