Battery packaging effect inspection method, device, equipment and medium

Abstract

The invention relates to a method, a device, equipment and a medium for testing a battery packaging effect, and the method comprises the steps: obtaining parameters of a lower sealing head, the parameters of the lower sealing head being each structural parameter of the lower sealing head used for packaging a battery; a packaging simulation diagram is obtained, packaging parameters are determined according to the packaging simulation diagram, and the packaging simulation diagram is obtained through drawing according to the parameters of the lower sealing head and the packaging mode of the simulation battery; a first volume and a second volume are calculated according to the parameters of the lower end socket and the packaging parameters, the first volume is the volume between the slot position of the lower end socket and the gap of the battery tab, and the second volume is the volume of the sol supplemented to the slot position during sol diffusion in the process of simulating packaging; and comparing the first volume with the second volume, and determining a battery packaging effect according to a comparison result. The problem that it is difficult to rapidly and accurately judge the sol effect when the battery is packaged is solved.

Description

Technical Field

[0001] The present application relates to the field of battery packaging technology, and in particular to a method, device, equipment and medium for inspecting battery packaging effects. Background Art

[0002] In recent years, with the widespread use of consumer electronic products, the safety and stability of batteries that provide power energy have attracted more and more attention. Since the aluminum-plastic shell used in lithium-ion batteries uses thermoplastic packaging to fix the internal active substances, and the internal active substances have the characteristics of reacting with air under charging conditions, the density of its packaging must be guaranteed. In addition, the battery will cause an increase in internal pressure during the subsequent cycle process and after the battery fails, which will cause the aluminum-plastic shell to expand, so the firmness of the aluminum-plastic shell packaging must be guaranteed.

[0003] Currently, the evaluation of battery packaging effect is mostly achieved by manually tearing the sol, but the tearing force and method cannot be quantified into a specific evaluation index, making it difficult to quickly and accurately judge the sol effect when packaging the battery.

[0004] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0005] The present application provides a method, device, equipment and medium for inspecting battery packaging effect, so as to solve the above-mentioned technical problem of "it is difficult to quickly and accurately judge the sol effect when packaging batteries".

[0006] According to one aspect of an embodiment of the present application, the present application provides a method for inspecting the packaging effect of a battery, comprising: obtaining lower head parameters, wherein the lower head parameters are various structural parameters of the lower head used to encapsulate the battery; obtaining a packaging simulation diagram, and determining various packaging parameters based on the packaging simulation diagram, wherein the packaging simulation diagram is drawn based on the lower head parameters and a simulated battery packaging method; calculating a first volume and a second volume based on the lower head parameters and the packaging parameters, wherein the first volume is the volume between the slot of the lower head and the gap between the battery tab, and the second volume is the volume of sol added to the slot when the sol diffuses during the simulated packaging process; comparing the first volume and the second volume, and determining the battery packaging effect based on the comparison result.

[0007] Optionally, obtaining the lower head parameters includes: obtaining the head width of the lower head and obtaining a side view of the lower head; determining the groove depth and limit height of the lower head according to the side view; and determining the head width, groove depth and limit height as the lower head parameters.

[0008] Optionally, determining various packaging parameters according to the packaging simulation drawing includes: extracting a first packaging parameter from the packaging simulation drawing, wherein the packaging parameter includes a first packaging parameter and a second packaging parameter; obtaining a second packaging parameter of a packaging material, wherein the packaging material is a material used when simulating packaging.

[0009] Optionally, extracting the first packaging parameter from the packaging simulation diagram includes: determining a spacing value between the slot of the lower head and the tab according to the packaging simulation diagram, and determining the spacing value as the first packaging parameter.

[0010] Optionally, obtaining a second packaging parameter of the packaging material includes: obtaining the tab packaging thickness, tab PP layer thickness, sealant length, sealant thickness, metal strip width and metal strip thickness corresponding to the tab, and obtaining the aluminum-plastic film thickness corresponding to the aluminum-plastic film; determining the tab packaging thickness, tab PP layer thickness, sealant length, sealant thickness, metal strip width, metal strip thickness and aluminum-plastic film thickness as the second packaging parameter.

[0011] Optionally, the first volume and the second volume are calculated according to the lower head parameters and the packaging parameters, including: calculating the first volume according to the following formula: V1=(T1-2*T5-T2)*W1*S, wherein V1 represents the first volume, T1 represents the tab packaging thickness, T5 represents the aluminum-plastic film thickness, T2 represents the tab PP layer thickness, W1 represents the head width, and S represents the spacing value between the slot and the tab; calculating the second volume according to the following formula:

[0012] Among them, V2 represents the second volume, H represents the limit height, L1 represents the sealant length, W2 represents the metal belt width, T3 represents the sealant thickness, T4 represents the metal belt thickness, and D represents the groove depth.

[0013] Optionally, determining the battery packaging effect according to the comparison result includes: if the comparison result indicates that the first volume is less than or equal to the second volume, determining that the battery packaging effect is well packaged; if the comparison result indicates that the first volume is greater than the second volume, determining that the battery packaging effect is poorly packaged.

[0014] According to another aspect of an embodiment of the present application, the present application provides a device for inspecting the packaging effect of a battery, including: an acquisition module, used to acquire lower head parameters, wherein the lower head parameters are various structural parameters of the lower head used to encapsulate the battery; a determination module, used to acquire a packaging simulation diagram, and determine various packaging parameters according to the packaging simulation diagram, wherein the packaging simulation diagram is drawn according to the lower head parameters and a simulated battery packaging method; a calculation module, used to calculate a first volume and a second volume according to the lower head parameters and the packaging parameters, wherein the first volume is the volume between the slot of the lower head and the gap between the battery tab, and the second volume is the volume of the sol added to the slot when the sol diffuses during the simulated packaging process; a comparison module, used to compare the first volume and the second volume, and determine the battery packaging effect according to the comparison result.

[0015] According to another aspect of an embodiment of the present application, the present application provides an electronic device, including a memory, a processor, a communication interface and a communication bus, wherein the memory stores a computer program that can be run on the processor, the memory and the processor communicate through the communication bus and the communication interface, and the steps of the above method are implemented when the processor executes the computer program.

[0016] According to another aspect of an embodiment of the present application, the present application also provides a computer-readable medium having a non-volatile program code executable by a processor, and the program code enables the processor to execute the above method.

[0017] The above technical solution provided by the embodiment of the present application has the following advantages compared with the related art:

[0018] The present application provides a method for testing the packaging effect of a battery, including: obtaining lower head parameters, wherein the lower head parameters are various structural parameters of the lower head used to package the battery; obtaining a packaging simulation diagram, and determining various packaging parameters according to the packaging simulation diagram, wherein the packaging simulation diagram is drawn according to the lower head parameters and the simulated battery packaging method; calculating a first volume and a second volume according to the lower head parameters and the packaging parameters, wherein the first volume is the volume between the slot of the lower head and the gap between the battery tab, and the second volume is the volume of sol added to the slot when the sol diffuses during the simulated packaging process; comparing the first volume and the second volume, and determining the packaging effect of the battery according to the comparison result. By first obtaining the structural parameters of the lower head and the packaging parameters in the simulated packaging process, and then calculating the volume between the slot and the gap between the battery tab and the volume of sol added to the slot when the sol diffuses during the simulated packaging process according to the structural parameters and the packaging parameters, and finally comparing the two volumes to obtain the packaging effect, the problem of difficulty in quickly and accurately judging the sol effect when packaging the battery is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 A flowchart of an optional method for inspecting battery packaging effect according to an embodiment of the present application;

[0022] Figure 2 A schematic diagram of an optional packaging structure provided according to an embodiment of the present application;

[0023] Figure 3 A schematic diagram of an optional aluminum-plastic film package provided according to an embodiment of the present application;

[0024] Figure 4 A side view of an optional lower head provided according to an embodiment of the present application;

[0025] Figure 5 An optional packaging simulation diagram provided by the present application according to an embodiment of the present application;

[0026] Figure 6 A schematic diagram of the structure of an optional pole ear provided according to an embodiment of the present application;

[0027] Figure 7 A schematic diagram of the structure of an optional aluminum-plastic film provided according to an embodiment of the present application;

[0028] Figure 8 A schematic diagram of an optional packaging effect inspection provided according to an embodiment of the present application;

[0029] Fig. 9 A block diagram of an optional battery packaging effect inspection device provided according to an embodiment of the present application;

[0030] Fig.10 A schematic diagram of an optional electronic device structure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0032] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present application and have no specific meaning. Therefore, "module" and "component" can be used interchangeably.

[0033] In recent years, with the widespread use of consumer electronic products, the safety and stability of batteries that provide power energy have attracted more and more attention. Since the aluminum-plastic shell used in lithium-ion batteries uses thermoplastic packaging to fix the internal active substances, and the internal active substances have the characteristics of reacting with air under charging conditions, the density of its packaging must be guaranteed. In addition, the battery will cause an increase in internal pressure during the subsequent cycle process and after the battery fails, which will cause the aluminum-plastic shell to expand, so the firmness of the aluminum-plastic shell packaging must be guaranteed.

[0034] Currently, the evaluation of battery packaging effect is mostly achieved by manually tearing the sol, but the tearing force and method cannot be quantified into a specific evaluation index, making it difficult to quickly and accurately judge the sol effect when packaging the battery.

[0035] In order to solve the problems mentioned in the background technology, according to one aspect of the embodiment of the present application, a method for inspecting the packaging effect of a battery is provided, such as Figure 1 As shown, including:

[0036] Step 101, obtaining lower head parameters, wherein the lower head parameters are various structural parameters of the lower head used to encapsulate the battery;

[0037] Step 103, obtaining a packaging simulation diagram, and determining various packaging parameters according to the packaging simulation diagram, wherein the packaging simulation diagram is drawn according to the lower head parameters and the simulated battery packaging method;

[0038] Step 105, calculating a first volume and a second volume according to the lower head parameters and the packaging parameters, wherein the first volume is the volume between the slot of the lower head and the gap between the battery tabs, and the second volume is the volume of the sol added to the slot when the sol diffuses during the simulation packaging process;

[0039] Step 107 , comparing the first volume and the second volume, and determining the battery packaging effect according to the comparison result.

[0040] Figure 2 A schematic diagram of a packaging structure provided for this application, the packaging structure includes an upper head and a lower head, the upper head and the lower head together constitute a sealing device for battery packaging, ensuring the stability of materials and chemical reactions inside the battery. The upper head is responsible for sealing the top of the battery, usually including the battery interface and safety device, and the lower head is the bottom part of the package, usually connected to the battery casing.

[0041] Figure 3 Another aluminum-plastic film packaging schematic diagram provided in this application, during the packaging process, the aluminum-plastic film and the PP (polypropylene) surface of the tab face each other, and are packaged at corresponding temperature and pressure for a certain period of time. Figure 2 The upper and lower heads give the nylon layer a certain amount of heat, and the heat is transferred to the PP layer through the nylon layer. The PP layer reaches the melting point and melts. A certain pressure is applied to the head to mix the two molten PP layers. After a certain period of mutual fusion, they are cooled, and the two layers of aluminum-plastic film and the tabs are fused together through the PP layer to achieve the purpose of packaging.

[0042] This application uses the structural parameters of the lower head (i.e., the lower head parameters), which will be specifically described below.

[0043] The packaging simulation diagram is an image drawn based on the lower head parameters and the battery packaging method. It is used to show the specific structure of the battery packaging. Through this image, you can more intuitively understand the actual situation of the packaging and further extract various packaging parameters. The packaging parameters will be specifically explained below.

[0044] Specifically, the first volume represents the gap volume between the groove of the lower head and the battery tab, and the size of the first volume directly affects the sealing effect and performance of the battery package.

[0045] Specifically, the second volume is the volume of the sol diffused into the slot during the simulated packaging process. The second volume reflects whether the required packaging material (such as glue) can completely fill the slot during the actual packaging process, thereby ensuring the integrity of the packaging.

[0046] By comparing the first volume and the second volume, the packaging effect of the battery can be judged. If the second volume can effectively fill the first volume, it means that the packaging effect is good. Otherwise, there may be a situation where the packaging is not strict or complete.

[0047] This application first obtains the structural parameters of the lower head and the packaging parameters in the simulated packaging process, and then calculates the volume between the slot and the gap of the battery ear and the volume of the sol added to the slot during the simulated packaging process according to the structural parameters and the packaging parameters, and finally compares the two volumes to obtain the packaging effect. The sol effect of lithium-ion battery packaging can be predicted without actual packaging, which is convenient for timely improvement, does not affect production, does not increase the cost of re-grinding the head, and reduces the occurrence of defects.

[0048] As an optional embodiment, obtaining the lower head parameters includes: obtaining the head width of the lower head and obtaining a side view of the lower head; determining the groove depth and limit height of the lower head according to the side view; and determining the head width, groove depth and limit height as the lower head parameters.

[0049] Preferably, the package top head is mostly made of copper or steel.

[0050] The side view of the lower head can be generated by 3D modeling software or extracted from existing engineering drawings. The side view can help users intuitively understand the shape and structural layout of the lower head.

[0051] The slot depth refers to the vertical distance from the top to the bottom of the slot inside the lower head. The slot is usually used to accommodate battery tabs or sealing materials.

[0052] The limit height refers to the vertical distance from the upper edge of the slot to the top of the head. The limit height ensures that the material will not overflow during the packaging process and maintains good sealing.

[0053] Figure 4 This is a side view of the lower head provided in the present application. The letters represent the intersection of the line segments at their respective positions. As shown in the figure, JK is the slot width, IJ is the slot depth, HI is the aluminum-plastic film sealing area (the sealing part between the aluminum-plastic film and the battery shell to prevent moisture, oxygen and pollutants from entering the battery), and GH is the stopper limit height.

[0054] The width of the head refers to the horizontal dimension of the lower head. Figure 4 It is shown that the width of the head can be directly obtained from the actual size of the lower head.

[0055] As an optional embodiment, determining various packaging parameters according to the packaging simulation drawing includes: extracting a first packaging parameter from the packaging simulation drawing, wherein the packaging parameter includes a first packaging parameter and a second packaging parameter; obtaining a second packaging parameter of a packaging material, wherein the packaging material is a material used when simulating packaging.

[0056] The packaging parameters used in the present application include a first packaging parameter obtained from a packaging structure (obtained from a packaging simulation diagram) and a second packaging parameter obtained from a packaging material.

[0057] The packaging materials mentioned in this application include aluminum-plastic film and tabs.

[0058] As an optional embodiment, extracting the first packaging parameter from the packaging simulation diagram includes: determining a spacing value between the slot of the lower head and the tab according to the packaging simulation diagram, and determining the spacing value as the first packaging parameter.

[0059] The spacing between the slot of the lower head and the tab affects the tightness and stability of the battery packaging and needs to be designed in advance. It cannot be too large to prevent the battery tab from moving after packaging; nor can it be too small to avoid damage due to thermal expansion or material extrusion during the packaging process.

[0060] Figure 5 The packaging simulation diagram provided for the present application, as shown in the figure, A, B, C, D, and E represent bold vertical lines, among which the area formed by AB is the aluminum-plastic film sealing area (i.e., a in the figure), the area formed by BC is the sealant glue sealing area (i.e., b in the figure), the area formed by CD is the gap between the slot and the TAB tab (i.e., c in the figure), and the area formed by DE is the TAB tab packaging area (i.e., d in the figure).

[0061] As an optional embodiment, obtaining a second packaging parameter of the packaging material includes: obtaining the tab packaging thickness, tab PP layer thickness, sealant length, sealant thickness, metal strip width and metal strip thickness corresponding to the tab, and obtaining the aluminum-plastic film thickness corresponding to the aluminum-plastic film; determining the tab packaging thickness, tab PP layer thickness, sealant length, sealant thickness, metal strip width, metal strip thickness and aluminum-plastic film thickness as the second packaging parameter.

[0062] The second packaging parameter is usually actually measured and recorded in advance, so it can be directly extracted from the recorded data.

[0063] Figure 6 The schematic diagram of the structure of the pole ear provided in the present application, as shown in the figure, the pole ear includes an intermediate metal layer (nickel, copper or other conductive metal), single or multi-layer polypropylene on both sides and a sealant (not shown in the figure).

[0064] Regarding the tabs, the tab packaging thickness refers to the thickness of the packaging material (such as aluminum-plastic film, PP layer, etc.) at the battery tab; the tab PP layer thickness refers to the thickness of the polypropylene (PP) material in the package, which is usually used to provide additional mechanical strength and insulation; the sealant length refers to the total length of the sealant used in the packaging process, which affects the sealing effect and the distribution of the material; the sealant thickness refers to the vertical thickness of the sealant applied in the packaging process, which directly affects the sealing performance; the metal strip width refers to the lateral dimension of the metal strip used to connect the battery and the external circuit; the metal strip thickness refers to the vertical dimension of the metal strip, which affects its conductive properties and mechanical strength.

[0065] Figure 7 A schematic structural diagram of the aluminum-plastic film provided for the present application, as shown in the figure, the aluminum-plastic film consists of a three-layer structure, the surface layer is a nylon layer (usually polyamide, PA) / PET (polyethylene terephthalate), the middle layer is an aluminum layer, and the inner layer is a PP layer, wherein the nylon layer provides good mechanical strength and wear resistance; the PET layer provides excellent transparency, chemical stability and gas barrier properties; the aluminum layer provides excellent gas and light barrier properties to prevent oxygen and light from affecting battery performance, and can also help dissipate heat during the packaging process to avoid overheating; the PP layer provides good electrical insulation properties to prevent short circuits and current leakage, and can also be combined with sealants or other packaging materials to provide a good sealing effect.

[0066] Regarding the aluminum-plastic film, the aluminum-plastic film thickness refers to the overall thickness of the aluminum-plastic film used for battery packaging, which affects the sealing and protection performance.

[0067] Obtaining the packaging parameters corresponding to the tabs, PP layer, sealant and aluminum-plastic film is a key step in testing the battery packaging effect. These parameters provide necessary data support for subsequent calculations.

[0068] As an optional embodiment, calculating the first volume and the second volume according to the lower head parameters and the packaging parameters includes:

[0069] The first volume is calculated according to the following formula: V1=(T1-2*T5-T2)*W1*S, wherein V1 represents the first volume, T1 represents the thickness of the tab packaging, T5 represents the thickness of the aluminum-plastic film, T2 represents the thickness of the tab PP layer, W1 represents the width of the head, and S represents the spacing value between the slot and the tab;

[0070] The second volume is calculated according to the following formula:

[0071] Among them, V2 represents the second volume, H represents the limit height, L1 represents the sealant length, W2 represents the metal belt width, T3 represents the sealant thickness, T4 represents the metal belt thickness, and D represents the groove depth.

[0072] The first volume refers to the gap volume between the groove of the lower head and the battery tab. This volume reflects the space between the tab and the head structure, which can affect the packaging stability and sealing of the battery.

[0073] The second volume refers to the volume of sol added to the slot when the sol diffuses during the simulated packaging process. This volume reflects the amount of material filled during the packaging process and affects the tightness and sealing effect of the packaging.

[0074] For example, the first volume is Figure 5 The volume of the CD corresponding area. When simulating packaging, Figure 5 As shown, the melt glue in the AB, BC, and DE regions diffuses in three directions, and the PP glue needs to be supplemented during diffusion. Figure 4 The width of the middle JK slot is such that the sealants between the aluminum-plastic film and the aluminum-plastic film, and between the aluminum-plastic film and the tab are completely fused without leakage, and the second volume represents the volume of the sol at this point.

[0075] As an optional embodiment, determining the battery packaging effect according to the comparison result includes: if the comparison result indicates that the first volume is less than or equal to the second volume, determining that the battery packaging effect is well packaged; if the comparison result indicates that the first volume is greater than the second volume, determining that the battery packaging effect is poorly packaged.

[0076] When the first volume is less than or equal to the second volume, it means that there is enough sol filling space in the slot, which can effectively replenish and seal, ensuring the sealing and stability of the internal environment of the battery. This shows that there is no air gap or material shortage during the packaging process, which meets the design requirements.

[0077] When the first volume is greater than the second volume, it means that the amount of sol in the slot is insufficient and cannot completely fill the gap. This may cause air gaps or missing materials, affecting the sealing and structural stability of the battery. Poor packaging may cause leakage of chemical substances inside the battery, reducing the performance and safety of the battery.

[0078] As another optional embodiment, the present application also provides a method for inspecting packaging effect, such as Figure 8 As shown, during inspection, the packaging area that needs to be inspected can be cut out and immersed in a beaker filled with concentrated hydrochloric acid for 0.5-2 hours (laboratory conditions are required). At this time, the middle aluminum layer of the aluminum-plastic film is completely corroded by the concentrated hydrochloric acid, leaving a transparent PP layer. At this time, the sol effect can be clearly and intuitively judged, and the defective position can be quickly identified.

[0079] The present application provides a method for testing the packaging effect of a battery, including: obtaining lower head parameters, wherein the lower head parameters are various structural parameters of the lower head used to package the battery; obtaining a packaging simulation diagram, and determining various packaging parameters according to the packaging simulation diagram, wherein the packaging simulation diagram is drawn according to the lower head parameters and the simulated battery packaging method; calculating a first volume and a second volume according to the lower head parameters and the packaging parameters, wherein the first volume is the volume between the slot of the lower head and the gap between the battery tab, and the second volume is the volume of sol added to the slot when the sol diffuses during the simulated packaging process; comparing the first volume and the second volume, and determining the packaging effect of the battery according to the comparison result. By first obtaining the structural parameters of the lower head and the packaging parameters in the simulated packaging process, and then calculating the volume between the slot and the gap between the battery tab and the volume of sol added to the slot when the sol diffuses during the simulated packaging process according to the structural parameters and the packaging parameters, and finally comparing the two volumes to obtain the packaging effect, the problem of difficulty in quickly and accurately judging the sol effect when packaging the battery is solved.

[0080] According to another aspect of the embodiment of the present application, the present application provides a battery packaging effect inspection device, such as Fig. 9 As shown, including:

[0081] An acquisition module 902 is used to acquire lower head parameters, wherein the lower head parameters are various structural parameters of the lower head used to encapsulate the battery;

[0082] The determination module 904 is used to obtain a packaging simulation diagram and determine various packaging parameters according to the packaging simulation diagram, wherein the packaging simulation diagram is drawn according to the lower head parameters and the simulated battery packaging method;

[0083] A calculation module 906 is used to calculate a first volume and a second volume according to the lower head parameters and the packaging parameters, wherein the first volume is the volume between the slot of the lower head and the gap between the battery tabs, and the second volume is the volume of the sol added to the slot when the sol diffuses during the simulation of packaging;

[0084] The comparison module 908 is used to compare the first volume and the second volume, and determine the battery packaging effect according to the comparison result.

[0085] It should be noted that the acquisition module 902 in this embodiment can be used to execute step 101 in the embodiment of the present application, the determination module 904 in this embodiment can be used to execute step 103 in the embodiment of the present application, the calculation module 906 in this embodiment can be used to execute step 105 in the embodiment of the present application, and the comparison module 908 in this embodiment can be used to execute step 107 in the embodiment of the present application.

[0086] Optionally, the acquisition module 902 is also used to obtain the head width of the lower head and obtain a side view of the lower head; determine the groove depth and limit height of the lower head according to the side view; and determine the head width, groove depth and limit height as lower head parameters.

[0087] Optionally, the determining module 904 includes:

[0088] An extraction submodule, used for extracting a first packaging parameter from the packaging simulation diagram, wherein the packaging parameter includes a first packaging parameter and a second packaging parameter;

[0089] The acquisition submodule is used to acquire a second packaging parameter of a packaging material, wherein the packaging material is a material used in simulating packaging.

[0090] Optionally, the extraction submodule is further used to determine a spacing value between the slot of the lower head and the tab according to the packaging simulation diagram, and determine the spacing value as the first packaging parameter.

[0091] Optionally, the acquisition submodule is also used to obtain the tab packaging thickness, tab PP layer thickness, sealant length, sealant thickness, metal strip width and metal strip thickness corresponding to the tab, and to obtain the aluminum-plastic film thickness corresponding to the aluminum-plastic film; and determine the tab packaging thickness, tab PP layer thickness, sealant length, sealant thickness, metal strip width, metal strip thickness and aluminum-plastic film thickness as the second packaging parameter.

[0092] Optionally, the calculation module 906 is further used to calculate the first volume according to the following formula: V1=(T1-2*T5-T2)*W1*S, wherein V1 represents the first volume, T1 represents the tab packaging thickness, T5 represents the aluminum-plastic film thickness, T2 represents the tab PP layer thickness, W1 represents the head width, and S represents the spacing value between the slot and the tab; the second volume is calculated according to the following formula:

[0093] Among them, V2 represents the second volume, H represents the limit height, L1 represents the sealant length, W2 represents the metal belt width, T3 represents the sealant thickness, T4 represents the metal belt thickness, and D represents the groove depth.

[0094] Optionally, the comparison module 908 is further configured to determine that the battery packaging effect is well packaged if the comparison result indicates that the first volume is less than or equal to the second volume; and determine that the battery packaging effect is poorly packaged if the comparison result indicates that the first volume is greater than the second volume.

[0095] It should be noted here that the examples and application scenarios implemented by the above modules and corresponding steps are the same, but are not limited to the contents disclosed in the above embodiments.

[0096] According to another aspect of the embodiments of the present application, the present application provides an electronic device, such as Fig.10 As shown, it includes a memory 1001, a processor 1003, a communication interface 1005 and a communication bus 1007. The memory 1001 stores a computer program that can be run on the processor 1003. The memory 1001 and the processor 1003 communicate through the communication interface 1005 and the communication bus 1007. When the processor 1003 executes the computer program, the steps of the above method are implemented.

[0097] The memory and processor in the above electronic device communicate via a communication bus and a communication interface. The communication bus may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus may be divided into an address bus, a data bus, a control bus, etc.

[0098] The memory may include a random access memory (RAM) or a non-volatile memory, such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

[0099] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0100] According to another aspect of the embodiments of the present application, a computer-readable medium having a non-volatile program code executable by a processor is provided.

[0101] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0102] When the embodiments of the present application are specifically implemented, reference may be made to the above-mentioned embodiments, which have corresponding technical effects.

[0103] It is understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit may be implemented in one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in the present application, or a combination thereof.

[0104] For software implementation, the technology described herein can be implemented by a unit that performs the functions described herein. The software code can be stored in a memory and executed by a processor. The memory can be implemented in the processor or outside the processor.

[0105] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0106] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0107] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the modules is only a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0108] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0109] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0110] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium, including several instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk or an optical disk. It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "include" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such a process, method, article or device. Without more constraints, an element defined by the phrase "comprising a..." does not exclude the existence of other identical elements in the process, method, article or apparatus comprising the element.

[0111] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A method for inspecting battery packaging effect, characterized in that: include: Obtaining lower head parameters, wherein the lower head parameters are various structural parameters of the lower head used to encapsulate the battery; Obtaining a packaging simulation diagram, and determining various packaging parameters according to the packaging simulation diagram, wherein the packaging simulation diagram is drawn according to the lower head parameters and a simulated battery packaging method; Calculate a first volume and a second volume according to the lower head parameters and the packaging parameters, wherein the first volume is the volume between the slot of the lower head and the gap between the battery tabs, and the second volume is the volume of the sol added to the slot when the sol diffuses during the simulation packaging process; The first volume and the second volume are compared, and the battery packaging effect is determined according to the comparison result.

2. The method according to claim 1, characterized in that The step of obtaining the lower header parameters includes: Obtaining the head width of the lower head and obtaining a side view of the lower head; Determine the groove depth and limit height of the lower head according to the side view; The head width, the groove depth and the limit height are determined as the lower head parameters.

3. The method according to claim 2, characterized in that Determining various packaging parameters according to the packaging simulation diagram includes: Extracting first packaging parameters from the packaging simulation diagram, wherein the packaging parameters include the first packaging parameters and second packaging parameters; The second packaging parameter of the packaging material is obtained, wherein the packaging material is a material used in simulating packaging.

4. The method according to claim 3, characterized in that The extracting the first packaging parameter from the packaging simulation diagram includes: The spacing value between the slot of the lower head and the tab is determined according to the packaging simulation diagram, and the spacing value is determined as the first packaging parameter.

5. The method according to claim 4, characterized in that The obtaining the second packaging parameter of the packaging material includes: Obtain the tab packaging thickness, tab PP layer thickness, sealant length, sealant thickness, metal strip width and metal strip thickness corresponding to the tab, and obtain the aluminum-plastic film thickness corresponding to the aluminum-plastic film; The tab packaging thickness, the tab PP layer thickness, the sealant length, the sealant thickness, the metal strip width, the metal strip thickness and the aluminum-plastic film thickness are determined as the second packaging parameters.

6. The method according to claim 5, characterized in that The calculating the first volume and the second volume according to the lower head parameter and the packaging parameter comprises: The first volume is calculated according to the following formula: V1=(T1-2*T5-T2)*W1*S, Wherein, V1 represents the first volume, T1 represents the tab packaging thickness, T5 represents the aluminum-plastic film thickness, T2 represents the tab PP layer thickness, W1 represents the head width, and S represents the spacing value between the slot and the tab; The second volume is calculated according to the following formula: Among them, V2 represents the second volume, H represents the limit height, L1 represents the sealant length, W2 represents the metal belt width, T3 represents the sealant thickness, T4 represents the metal belt thickness, and D represents the slot depth.

7. The method according to claim 1, characterized in that The step of determining the battery packaging effect according to the comparison result includes: If the comparison result indicates that the first volume is less than or equal to the second volume, it is determined that the battery packaging effect is well packaged; If the comparison result indicates that the first volume is greater than the second volume, it is determined that the battery packaging effect is poorly packaged.

8. A battery packaging effect inspection device, characterized in that: include: An acquisition module, used to acquire lower head parameters, wherein the lower head parameters are various structural parameters of the lower head used to encapsulate the battery; A determination module, used to obtain a packaging simulation diagram and determine various packaging parameters according to the packaging simulation diagram, wherein the packaging simulation diagram is drawn according to the lower head parameters and a simulated battery packaging method; A calculation module, used to calculate a first volume and a second volume according to the lower head parameters and the packaging parameters, wherein the first volume is the volume between the slot of the lower head and the gap between the battery tabs, and the second volume is the volume of the sol added to the slot when the sol diffuses during the simulation of packaging; A comparison module is used to compare the first volume and the second volume, and determine the battery packaging effect according to the comparison result.

9. An electronic device, comprising a memory, a processor, a communication interface and a communication bus, wherein the memory stores a computer program that can be run on the processor, and the memory and the processor communicate through the communication bus and the communication interface, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer readable medium having a non-volatile program code executable by a processor, characterized in that: The program code enables the processor to execute the method according to any one of claims 1 to 7.

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