Pole piece deviation correction device and method thereof, storage medium and battery processing system

Abstract

The application discloses a kind of pole piece rectification equipment and its method, storage medium and battery processing system, the pole piece rectification equipment includes host computer, lower computer, visual detection component, rectification drive component and rectification platform, the pole piece rectification method includes: obtaining the center coordinates of rotation of rectification platform and the center coordinates of standard stack image;Obtain the initial image of the pole piece to be rectified;According to the center coordinates of standard stack image and the center coordinates of initial image and the center coordinates of rotation, offset and deflection angle are calculated;Control lower computer according to offset and deflection angle to the rectification platform is rectified.The pole piece rectification method of the pole piece rectification equipment of the technical scheme of the present application can improve rectification accuracy.

Description

Technical Field

[0001] This invention relates to the field of battery processing technology, and in particular to an electrode correction device and method, a storage medium, and a battery processing system. Background Technology

[0002] In lithium battery manufacturing processes, there are various methods for cell formation, such as winding and stacking. Among these, the stacking process is currently highly regarded in solid-state batteries, and the manufacturing technology is relatively mature. During the stacking process, the alignment of the anode and cathode is crucial to the entire process; misalignment can affect battery manufacturing performance and even lead to short circuits.

[0003] Currently, visual inspection is typically used to automatically correct the alignment of anode and cathode cells before stacking, thereby improving alignment accuracy and ensuring product quality and safety. However, due to the large differences in processing precision of existing correction equipment and the placement of electrode cells, the correction accuracy is not high, affecting battery performance. Summary of the Invention

[0004] The main objective of this invention is to provide an electrode correction method for an electrode correction device, which aims to improve the correction accuracy.

[0005] To achieve the above objectives, the present invention proposes an electrode correction method for an electrode correction device, the electrode correction method comprising:

[0006] Obtain the rotation center coordinates of the correction platform and the center coordinates of the standard stacked image;

[0007] Obtain the initial image of the electrode to be corrected;

[0008] The offset and deflection angle are calculated based on the center coordinates of the standard stacked image, the center coordinates of the initial image, and the rotation center coordinates.

[0009] The lower-level control unit moves and corrects the alignment platform according to the offset and deflection angle.

[0010] In this example, when calculating the offset of the electrode to be corrected, the rotation center of the correction platform is first determined. When the center of the electrode to be corrected does not coincide with the rotation center of the correction platform, the coordinate point after rotation can be obtained based on the rotation center. Then, the offset is obtained by comparing it with the center of the standard stack. The control device with this logic control can accurately determine the offset of the correction, control the alignment error, meet the process requirements of solid-state battery stacking and core formation, and improve battery performance.

[0011] By obtaining the rotation center coordinates of the correction platform, the offset can be calculated more accurately when the center point of the standard stack and / or the electrode to be corrected does not coincide with the center point of the correction platform, thereby improving the correction accuracy and enhancing the performance of the stacked battery.

[0012] In one embodiment of the present invention, the step of obtaining the rotation center coordinates of the correction platform and the center coordinates of the standard stacked image includes:

[0013] Obtain the first test image of the initial standard stack, and the center coordinates of the first test image;

[0014] The lower-level control unit causes the correction platform to rotate by a preset angle;

[0015] The second test image of the standard stacked sheet is acquired again;

[0016] The rotation center coordinates of the correction platform are calculated based on the first test image and the second test image.

[0017] At the beginning of the lamination process, the rotation center coordinates of the correction platform are obtained by using a standard lamination. This method is simple and convenient, and facilitates subsequent electrode correction.

[0018] In one embodiment of the present invention, the step of calculating the rotation center coordinates of the correction platform based on the first test image and the second test image includes:

[0019] Obtain the coordinates of the first vertex and the second vertex of the first test image, and simultaneously obtain the coordinates of the first vertex and the second vertex of the second test image;

[0020] Obtain the first perpendicular bisector of the line connecting the first vertex of the first test image and the first vertex of the second test image; obtain the second perpendicular bisector of the line connecting the second vertex of the first test image and the second vertex of the second test image.

[0021] Obtain the coordinates of the intersection point of the first perpendicular bisector and the second perpendicular bisector. These coordinates are the rotation center coordinates of the correction platform.

[0022] This calculation method is simple and easy to process, improving data processing efficiency.

[0023] In one embodiment of the present invention, the visual detection component includes four visual detection elements, and the step of acquiring an initial image of the electrode to be corrected includes:

[0024] Sending instructions to the lower-level computer to control the four vision detection devices to acquire local images of the four vertices of the electrode to be corrected;

[0025] Acquire the four local images and place them in the same coordinate system of the standard stack;

[0026] The four local images are stitched together to form the initial image.

[0027] In this example, the quality of the initial image is improved by taking partial images from four visual inspection devices, thereby improving the efficiency and accuracy of subsequent image processing.

[0028] In one embodiment of the present invention, the step of calculating the offset and deflection angle based on the center coordinates of the standard stacked image, the center coordinates of the initial image, and the rotation center coordinates includes:

[0029] Obtain two edges on the same side of the standard stacked image and the initial image, and obtain the deflection angle α of the electrode to be corrected based on the two edges;

[0030] The initial image is rotated according to the deflection angle α, and the center coordinates of the deflected initial image are obtained according to the rotation center coordinates and the center coordinates of the initial image.

[0031] The offset is obtained based on the difference between the center coordinates of the initial image after deflection and the center coordinates of the standard stacked image.

[0032] In this example, obtaining the offset based on the rotated polarimetric coordinates and the coordinates of the standard stacked image can improve the correction accuracy.

[0033] In one embodiment of the present invention, the step of rotating the initial image according to the deflection angle α and obtaining the center coordinates of the deflected initial image according to the rotation center coordinates and the center coordinates of the initial image includes:

[0034] Obtain the angle β between the line connecting the center coordinates of the initial image and the rotation center coordinates and the x-coordinate of the coordinate system;

[0035] The center coordinates of the deflected initial image are calculated based on the angle β, the deflection angle α, the distance between the center coordinates of the initial image and the rotation center coordinates, and the rotation center coordinates.

[0036] In this embodiment, the calculation method is simple and easy to operate, improving processing efficiency.

[0037] In one embodiment of the present invention, after the step of obtaining the rotation center coordinates of the correction platform and the center coordinates of the standard stacked image, and before the step of obtaining the initial image of the pole piece to be corrected, the method further includes:

[0038] The rotation center coordinates of the correction platform and the center coordinates of the standard stacked image are stored.

[0039] In this embodiment, the obtained rotation center coordinates of the correction platform are stored, so that no further calculation is needed when correcting the electrode sheet to be corrected, simplifying the operation and improving efficiency.

[0040] In one embodiment of the present invention, the step of controlling the lower-level computer to move and correct the correction platform according to the offset and deflection angle includes:

[0041] The deflection angle and offset are sent to the lower-level machine so that the lower-level machine controls the correction drive component to first rotate the correction platform according to the deflection angle, and then move the correction platform according to the offset.

[0042] In this example, by sending commands from the host computer to the slave computer, and then controlling the correction drive component through the slave computer, the system efficiency can be improved, the control flexibility can be enhanced, and the system security can be improved.

[0043] The present invention also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of any of the electrode correction methods described above.

[0044] This invention also proposes an electrode correction device, comprising:

[0045] A correction platform, used to fix the standard stacked wafers and the electrode to be corrected;

[0046] A visual inspection component is positioned above the correction platform and is used to capture standard stacked images and initial images of the electrode to be corrected.

[0047] A correction drive component, which is connected to and located below the correction platform, drives the correction platform to move linearly along the X and Y axes and to rotate within the two-dimensional plane containing the X and Y axes; and

[0048] A control device includes an upper computer and a lower computer electrically connected to each other. The lower computer is electrically connected to the vision detection component and the correction drive component. The upper computer includes a processing module, a storage module, and a computer program stored on the storage module and executable on the processing module. The computer program is configured to implement the steps of the electrode correction method as described above.

[0049] The electrode alignment device of this invention captures an initial image of the electrode to be aligned using a vision inspection component, analyzes and processes the image using a control device, and then controls the alignment drive component to adjust the alignment platform, thereby achieving the alignment operation of the electrode to be aligned. Specifically, when calculating the offset of the electrode to be aligned, the host computer of the control device first determines the rotation center of the alignment platform. If the center of the electrode to be aligned does not coincide with the rotation center of the alignment platform, the coordinate point after rotation can be obtained from the rotation center. The offset is then obtained by comparing this coordinate point with the center of a standard stack. This logic-controlled device can accurately determine the offset, control alignment errors, meet the process requirements of solid-state battery stacking, and improve battery performance.

[0050] In one embodiment of the present invention, the visual inspection component includes four visual inspection elements, which are spaced apart above the correction platform and are used to capture images of the four apex corners of the electrode to be corrected. The images of the four apex corners constitute the initial image.

[0051] In this embodiment, the visual inspection component is divided into four visual inspection elements, which respectively capture images of the four vertices of the standard stacked film or the electrode to be corrected, thereby improving the shooting accuracy and making it easier for the control device to obtain clearer images and improve the processing accuracy.

[0052] In one embodiment of the present invention, the visual inspection component further includes a mounting frame, and two mounting portions are respectively provided on opposite sides of the mounting frame. One of the visual inspection components is mounted on one of the mounting portions, and each of the mounting portions is slidably disposed relative to the mounting frame so as to be movable in the width direction of the electrode.

[0053] In this example, the visual inspection element can be moved relative to the mounting bracket in the width direction of the electrode, thereby adjusting the coverage of the two visual inspection elements to accommodate electrodes of different sizes and improve applicability.

[0054] In one embodiment of the present invention, each of the visual detection elements is movably disposed in the vertical direction relative to the mounting portion.

[0055] In this example, the shooting field of view and focus of the visual inspection device can be changed by moving it in the vertical direction, thereby improving the shooting quality and coping with electrodes of different sizes.

[0056] In one embodiment of the present invention, the correction drive assembly includes an X-axis drive member, a Y-axis drive member, and an R-axis drive member. The X-axis drive member drives the correction platform to move linearly in the X direction, the Y-axis drive member drives the correction platform to move linearly in the Y direction, and the R-axis drive member drives the correction platform to rotate in a surface parallel to the X and Y directions.

[0057] In this embodiment, the correction platform is driven to move by a three-axis motion mechanism, which can improve the correction accuracy and is suitable for high-precision scenarios.

[0058] The present invention also proposes a battery processing system, including the electrode alignment device as described in any of the preceding claims. Attached Figure Description

[0059] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0060] Figure 1 This is a schematic diagram of the electrical equipment of the present invention;

[0061] Figure 2 This is a partial exploded view of the battery device of the present invention;

[0062] Figure 3 This is a partial structural schematic diagram of the battery processing system of the present invention;

[0063] Figure 4 for Figure 3 A schematic diagram of an embodiment of an electrode alignment device in a battery processing system is shown.

[0064] Figure 5 This is a flowchart of an embodiment of the electrode correction method of the electrode correction device of the present invention;

[0065] Figure 6 This is a flowchart of another embodiment of the electrode correction method of the electrode correction device of the present invention;

[0066] Figure 7 for Figure 6 A schematic diagram of the operation corresponding to the last step in the electrode correction method;

[0067] Figure 8 This is a schematic diagram of the operation in the step of obtaining the initial image of the electrode to be corrected in the electrode correction method of the present invention;

[0068] Figure 9 This is an operation diagram corresponding to the step of controlling the lower computer to move and correct the correction platform according to the offset and deflection angle in the electrode correction method of the present invention.

[0069] Figure 10This is an operational diagram illustrating the step in the electrode correction method of the present invention to calculate the center coordinates of the deflected initial image based on the angle β, the deflection angle α, the distance between the center coordinates of the initial image and the rotation center coordinates, and the rotation center coordinates.

[0070] Explanation of icon numbers:

[0071] 100. Battery assembly; 10. Housing; 11. First part; 12. Second part; 20. Battery cell; 200. Controller; 300. Motor; 400. Electrode alignment device; 410. Alignment platform; 420. Vision inspection component; 421. Vision inspection component; 422. Mounting bracket; 4221. Mounting part; 430. Alignment drive assembly; 431. X-axis drive component; 432. Y-axis drive component; 500. Stacking platform.

[0072] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0073] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0074] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0075] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0076] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0077] Battery devices mentioned in this art can be categorized into primary batteries and rechargeable batteries based on whether they are rechargeable. Common types of rechargeable batteries include lead-acid batteries, nickel-metal hydride batteries, and lithium-ion batteries. The battery devices described in the embodiments of this invention refer to rechargeable batteries. The following description will primarily use lithium-ion batteries as an example to illustrate the embodiments disclosed in this invention. It should be understood that the embodiments disclosed in this invention are applicable to any other suitable type of rechargeable battery. The battery devices mentioned in the embodiments disclosed in this invention can be directly or indirectly applied to suitable devices to power those devices.

[0078] The battery device mentioned in the embodiments of this invention refers to a single physical module comprising one or more battery cells to provide a predetermined voltage and capacity; it can be a battery module or a battery pack. A battery cell is the basic unit in a battery device and can be used to manufacture battery modules or battery packs. A battery module is formed by connecting a certain number of battery cells in series and / or parallel and placing them in a frame to protect the battery cells from external impacts, heat, vibration, etc. A battery pack generally includes battery modules, a battery management system, and a housing to house the battery modules and the battery management system.

[0079] A single battery cell primarily functions by the movement of metal ions between the positive and negative electrode plates. The positive electrode plate includes a positive current collector and a positive active material layer, which is coated on the surface of the positive current collector. The positive current collector includes a positive current-collecting section and a positive electrode tab connected to it. The positive current-collecting section is coated with the positive active material layer, while the positive electrode tab is not. Taking a lithium-ion battery as an example, the positive current collector can be made of aluminum, and the positive active material layer includes positive active material, which can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode plate includes a negative current collector and a negative active material layer, which is coated on the surface of the negative current collector. The negative current collector includes a negative current-collecting section and a negative electrode tab connected to it. The negative current-collecting section is coated with the negative active material layer, while the negative electrode tab is not. The negative electrode current collector can be made of copper, and the negative electrode active material layer includes the negative electrode active material, which can be carbon or silicon, etc. The separator can be made of PP (polypropylene) or PE (polyethylene), etc.

[0080] Electrode components are a crucial part of a battery cell, and based on their fabrication methods, they can be categorized into wound electrode components and stacked electrode components. In wound electrode components, the positive electrode, separator, and negative electrode are sequentially stacked and wound two or more times. In stacked electrode components, multiple positive and negative electrodes are alternately stacked. The stacking process is currently highly favored in solid-state batteries, and its manufacturing technology is relatively mature. During the stacking process, the alignment of the anode and cathode is critical to the entire process; misalignment can affect battery performance and even lead to short circuits.

[0081] Currently, visual inspection is typically used to automatically correct the alignment of the anode and cathode before stacking, thereby improving the alignment accuracy and ensuring product quality and safety. However, due to the processing precision limitations of existing alignment equipment, the alignment equipment and stacking equipment often cannot achieve perfect alignment. Therefore, the standard stacked cells may not be centered on the alignment equipment. Furthermore, the significant differences in the placement of the electrodes result in low alignment accuracy, affecting battery performance.

[0082] Therefore, in order to solve the above problems, this invention proposes an electrode correction method for an electrode correction device. By first obtaining the rotation center of the correction platform and then calculating the offset, the calculation accuracy can be improved, thereby compensating for errors caused by existing processing accuracy problems or placement deviations, improving correction accuracy, and improving battery performance.

[0083] The battery device disclosed in this application can be used in electrical devices that use batteries as a power source or in various energy storage systems that use batteries as energy storage elements. Electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0084] The following embodiments are for illustrative purposes only and refer to... Figure 1 The following description will be based on an embodiment of an electrical device, specifically a vehicle.

[0085] Figure 1 The electrical equipment provided in some embodiments of this application is a structural schematic diagram of a vehicle. The vehicle can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is installed inside the vehicle, and the battery device 100 can be located at the bottom, front, or rear of the vehicle. The battery device 100 can be used to power the vehicle; for example, the battery device 100 can serve as the vehicle's operating power source. The vehicle may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle during starting, navigation, and driving.

[0086] In some embodiments of this application, the battery device 100 can not only serve as the operating power source for the vehicle, but also as the driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0087] refer to Figure 2 , Figure 2This is an exploded view of a battery device 100 provided in some embodiments of this application. The battery device 100 includes a housing 10 and at least two battery cells 20. The housing 10 provides a receiving space for the battery cells 20, and the housing 10 can adopt various structures. In some embodiments, the housing 10 may include a first portion 11 and a second portion 12, which overlap each other, and the first portion 11 and the second portion 12 together define a receiving space. The second portion 12 may be a hollow structure with one end open, and the first portion 11 may be a plate-like structure, with the first portion 11 covering the open side of the second portion 12 so that the first portion 11 and the second portion 12 together define a receiving space; the first portion 11 and the second portion 12 may also be hollow structures with one side open, with the open side of the first portion 11 covering the open side of the second portion 12. Of course, the housing 10 formed by the first portion 11 and the second portion 12 can be of various shapes, such as a cylinder, a cuboid, etc.

[0088] In the battery device 100, there can be multiple battery cells 20. These multiple battery cells 20 can be connected in series, parallel, or in a mixed configuration to form a whole, and are housed within the housing 10. A mixed configuration means that some of the multiple battery cells 20 are connected in series and others in parallel. The battery device 100 may also include other structures, such as a busbar component, for realizing electrical connections between the multiple battery cells 20.

[0089] The battery cell 20 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, etc. The battery cell 20 can be cylindrical, flat, cuboid, or other shapes.

[0090] In some cases, the battery cell 20 can be directly installed in the vehicle without the casing 10, that is, it does not need to form a battery pack, and the structure of the vehicle body itself serves as the fixing structure for the battery cell 20.

[0091] Please refer to Figure 4 and Figure 5 This invention proposes an electrode correction method for an electrode correction device 400. The electrode correction device 400 includes a host computer, a slave computer, a vision inspection component 420, a correction drive component 430, and a correction platform 410. The electrode correction method includes:

[0092] Step S1: Obtain the rotation center coordinates of the correction platform 410 and the center coordinates of the standard stacked image;

[0093] Step S2: Obtain the initial image of the electrode to be corrected;

[0094] Step S3: Calculate the offset and deflection angle based on the center coordinates of the standard stacked image, the center coordinates of the initial image, and the rotation center coordinates;

[0095] Step S4: Control the lower-level machine to move and correct the correction platform 410 according to the offset and deflection angle.

[0096] In this example, before the host computer initiates electrode correction, the slave computer first controls the loading mechanism to place a standard stack of electrodes on the correction platform 410. The standard stack is an electrode placed on the correction platform 410, and its position is the same as the correct stacking position on the stacking platform 500. The standard stack can be directly picked up by the transfer device and stacked on the stacking platform 500. In step S1, the host computer needs to acquire an image of the standard stack, then establish a coordinate system for the image to obtain the center coordinates of the standard stack image, and calculate the rotation center point of the correction platform 410. In step S2, the host computer needs to acquire an initial image of the electrode to be corrected. This can be done by controlling the vision detection component 420 to acquire an image of the electrode to be corrected through the slave computer. The position image of the electrode to be corrected in the coordinate system of the standard stack is the initial image. The vision detection component 420 can be a single image acquisition device or multiple devices; no limitation is made here. In step S3, after the host computer acquires the above data, it can obtain the deflection angle by the angle between one side of the initial image and one side of the standard stacked image. The center coordinates of the electrode to be corrected are obtained by rotating it around the rotation center coordinates as the origin. Then, based on the center coordinates of the standard stacked image, the offset can be obtained. In step S4, the host computer transmits the processed offset and offset angle to the slave computer, which then controls the correction drive component 430 to correct the correction platform 410.

[0097] By obtaining the rotation center coordinates of the correction platform 410, the offset can be calculated more accurately when the center point of the standard stack and / or the electrode to be corrected does not coincide with the center point of the correction platform 410, thereby improving the correction accuracy and enhancing the performance of the stacked battery.

[0098] Please refer to Figure 6 In one embodiment of the present invention, the step of obtaining the rotation center coordinates of the correction platform 410 and the center coordinates of the standard stacked image includes:

[0099] Step S11: Obtain the first test image of the initial standard stack, and the center coordinates of the first test image;

[0100] Step S12: Control the lower-level machine to rotate the correction platform 410 by a preset angle;

[0101] Step S13: Acquire the second test image of the standard stacked sheet again;

[0102] Step S14: Calculate the rotation center coordinates of the correction platform 410 based on the first test image and the second test image.

[0103] In this embodiment, in step S11, the initial test image of the standard stacked sheets captured by the vision inspection component 420 only contains the image of the standard stacked sheets. The vision inspection component 420 can directly transmit this image to the host computer or transmit it to the host computer through the slave computer. Before the coordinate system is established, the first test image can be preliminarily processed by the vision inspection component 420, the slave computer, or the host computer, such as stray light processing, to improve the detection accuracy. After the host computer acquires the first test image, it establishes a world coordinate system, thereby obtaining the center coordinates and the coordinates of each vertex of the first test image. In step S12, the slave computer controls the correction drive component 430 to rotate the correction platform 410 by a preset angle. The preset angle range is not limited, as long as the standard stacked sheets are always within the field of view of the vision inspection component 420. For example, the preset angle can be greater than 0 degrees and less than 90 degrees. In step S13, the second test image of the rotated standard stacked sheets is acquired again. This time, the vision inspection component 420 has the same shooting structure as the initial one. In step S14, the coordinates of the rotation center of the correction platform 410 are calculated because the distances from the coordinates of points at the same position in the initial standard stacked image and the rotated standard stacked image to the coordinates of the rotation center are the same and equal to the rotation radius.

[0104] At the beginning of the lamination process, the rotation center coordinates of the correction platform 410 are obtained by using a standard lamination. This method is simple and convenient, facilitating subsequent electrode correction and improving correction accuracy.

[0105] Please combine Figure 7 In one embodiment of the present invention, the step of calculating the rotation center coordinates of the correction platform 410 based on the first test image and the second test image includes:

[0106] Step S141: Obtain the first vertex coordinates and the second vertex coordinates of the first test image, and simultaneously obtain the first vertex coordinates and the second vertex coordinates of the second test image;

[0107] Step S142: Obtain the first perpendicular bisector of the line connecting the first vertex of the first test image and the first vertex of the second test image; obtain the second perpendicular bisector of the line connecting the second vertex of the first test image and the second vertex of the second test image.

[0108] Step S143: Obtain the coordinates of the intersection of the first perpendicular bisector and the second perpendicular bisector. The coordinates of the intersection are the coordinates of the rotation center of the correction platform 410.

[0109] In this embodiment, any two adjacent vertices of the standard stack are selected as references. Based on the coordinates of the first vertex at the initial position and after a preset rotation angle, the equation of the line passing through these two points can be obtained. Similarly, the equation of the line passing through the coordinates of the second vertex can be obtained. Then, based on the two line equations, the equations of their respective perpendicular bisectors are obtained. For example, the equation of the first perpendicular bisector is A1x + B1y + C1 = 0, and the equation of the second perpendicular bisector is A2x + B2y + C2 = 0. Then, the coordinates of the intersection point P0(X0, Y0) of the two lines are calculated according to Cramer's rule. Specifically:

[0110]

[0111] This calculation method is simple and easy to process, improving data processing efficiency.

[0112] Please refer to Figure 8 In one embodiment of the present invention, the visual detection component 420 includes four visual detection elements 421, and the step of acquiring an initial image of the electrode to be corrected includes:

[0113] Step S21: Send a command to the lower computer to control the four vision detection devices 421 to acquire local images of the four vertices of the electrode to be corrected;

[0114] Step S22: Acquire the four local images and place them in the same coordinate system of the standard stack;

[0115] Step S23: The four local images are stitched together to form the initial image.

[0116] In this embodiment, after the host computer obtains the rotation center of the correction platform 410, it can instruct the slave computer to start detecting the electrode to be corrected. The slave computer controls the vision detection unit 421 to acquire local images (a, b, c, d) of the four vertices of the electrode to be corrected. Specifically, the slave computer can also control the device for transporting the electrode to be corrected to transport it. When the electrode to be corrected is fixed on the correction platform 410, it will also send a signal feedback to the slave computer, thereby enabling it to control the vision detection unit 421 to take pictures. The captured local images (a, b, c, d) are in the same coordinate system as the standard stacked image, for example, both are in a world coordinate system. At this time, the outlines of the four local images facing outwards are connected, that is, the two sides forming each vertices are extended so that they coincide with the sides of the adjacent local images, forming the initial image of the electrode to be corrected.

[0117] In this example, the quality of the initial image is improved by local imaging through four visual detectors 421, thereby improving the efficiency and accuracy of subsequent image processing.

[0118] Optionally, the shooting components and image processing methods of the standard stacked image are the same as those of the above-mentioned polariton to be corrected, which can also improve the shooting quality of the standard stacked image and improve the efficiency and accuracy of post-processing image processing.

[0119] In one embodiment of the present invention, step S3, which calculates the offset and deflection angle based on the center coordinates of the standard stacked image, the center coordinates of the initial image, and the rotation center coordinates, includes:

[0120] Step S31: Obtain two sides on the same side of the standard stacked image and the initial image, and obtain the deflection angle α of the electrode to be corrected based on the two sides;

[0121] Step S32: Rotate the initial image according to the deflection angle α, and obtain the center coordinates of the deflected initial image according to the rotation center coordinates and the center coordinates of the initial image;

[0122] Step S33: Obtain the offset based on the difference between the center coordinates of the initial image after deflection and the center coordinates of the standard stacked image.

[0123] In this example, the equation for the line connecting two adjacent vertices of the standard stacked image can be obtained from the coordinates of two vertices on the same side of the initial image. The angle between the two sides can be calculated from the slopes of these two equations; this angle is the deflection angle α. Let the center coordinates of the standard stacked image be P1(X1, Y1), and the center coordinates of the initial image be P2(X2, Y2). Rotating the initial image by an angle α around its rotation center results in the deflected center coordinates P3(X3, Y3). This ensures that the initial image and the standard stacked image maintain the same angle. Then, the coordinates of P3 can be calculated from P1 and P2. Moving the deflected initial image along the X and Y axes will bring it to the position of the standard stacked image. Therefore, the offset can be obtained from the difference between the two coordinates.

[0124] The offset obtained by using the coordinates of the rotated electrode and the coordinates of the standard stacked image can improve the correction accuracy, thereby meeting the situation where the center of the electrode to be corrected changes with the deflection angle and improving adaptability.

[0125] Please refer to Figure 9 and Figure 10 In one embodiment of the present invention, step S32, which involves rotating the initial image according to the deflection angle α and obtaining the center coordinates of the deflected initial image based on the rotation center coordinates and the center coordinates of the initial image, includes:

[0126] Step S321: Obtain the angle β between the line connecting the center coordinates of the initial image and the rotation center coordinates and the x-coordinate of the coordinate system;

[0127] Step S322: Calculate the center coordinates of the deflected initial image based on the angle β, the deflection angle α, the distance between the center coordinates of the initial image and the rotation center coordinates, and the rotation center coordinates.

[0128] In this embodiment, the length L between the center of rotation and the center of the initial image is first obtained based on the center coordinates of the initial image and the rotation center coordinates, specifically as follows:

[0129]

[0130] And calculate the angle β between the line connecting the two points and the X-axis. According to the triangle law, we can obtain:

[0131] Thus, the coordinates of P3 can be obtained as follows:

[0132] X3 = X0 + L*cos(α + β), Y3 = Y0 + L*sin(α + β), thus, the offset can be obtained:

[0133] ΔX = X3 - X1, ΔY = Y3 - Y1.

[0134] This calculation method is simple and easy to operate, improving processing efficiency.

[0135] In one embodiment of the present invention, after the step of obtaining the rotation center coordinates of the correction platform 410 and the center coordinates of the standard stacked image, and before the step of obtaining the initial image of the pole piece to be corrected, the method further includes:

[0136] Step S1': Store the rotation center coordinates of the correction platform 410 and the center coordinates of the standard stacked image.

[0137] In this embodiment, the obtained rotation center coordinates of the correction platform 410 are stored, so that no further calculation is needed when correcting the electrode sheet to be corrected, which simplifies the operation and improves efficiency.

[0138] In one embodiment of the present invention, the step of controlling the lower-level computer to move and correct the correction platform 410 according to the offset and deflection angle includes:

[0139] Step S41: Send the deflection angle and offset to the lower-level machine so that the lower-level machine controls the correction drive component 430 to first rotate the correction platform 410 according to the deflection angle, and then move the correction platform 410 according to the offset.

[0140] In this example, the host computer sends instructions to the slave computer, and the slave computer controls the correction drive component 430, which can improve system efficiency, enhance control flexibility, and improve system security.

[0141] Furthermore, after completing one correction operation, the lower-level computer controls the correction drive component 430 to reset the correction platform 410. This allows for advance preparation for the next correction, ensuring a consistent logical sequence during corrections. It also allows for the transfer and stacking process using a transfer device, effectively saving time.

[0142] The present invention also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of any of the electrode correction methods described above.

[0143] Please refer to Figure 4 The present invention further proposes an electrode correction device 400. In one example, the electrode correction device 400 includes:

[0144] Correction platform 410, the correction platform 410 is used to fix the standard stack and the electrode to be corrected;

[0145] A visual inspection component 420 is disposed above the correction platform 410 and is used to capture standard stacked images and initial images of the electrode to be corrected.

[0146] A web correction drive assembly 430 is driven and connected to the web correction platform 410 and located below the web correction platform 410 to drive the web correction platform 410 to move along the X-axis and Y-axis, and to rotate within the two-dimensional plane containing the X-axis and Y-axis; and

[0147] The control device includes an upper computer and a lower computer electrically connected to each other. The lower computer is electrically connected to the vision detection component 420 and the correction drive component 430. The upper computer includes a processing module, a storage module, and a computer program stored on the storage module and executable on the processing module. The computer program is configured to implement the steps of the electrode correction method as described above.

[0148] In this embodiment, the correction platform 410 is used to correct the electrode sheet to be corrected that has been transferred from the machine. After correction, it becomes a standard stack, which is then transferred to the stacking platform 500 for stacking. It is known that positive and negative electrode sheets need to be stacked alternately during the stacking process; therefore, the electrode sheet to be corrected in the electrode correction device 400 can be either a positive or a negative electrode sheet. The surface of the correction platform 410 is used to fix the electrode sheet to be corrected. This fixing method can be gas adsorption fixing. For example, the surface of the correction platform 410 has multiple suction holes connected to a gas supply device, thereby providing negative pressure to the surface of the correction platform 410, so that the electrode sheet is stably fixed on its surface. This fixing method does not directly mechanically contact the electrode sheet, which can reduce damage to the electrode sheet surface and improve the performance of the electrode sheet structure. In other examples, the correction platform 410 can also be fixed mechanically, such as with clamps or magnetic attraction. The shape of the correction platform 410 is not limited; it can be square, circular, or polygonal. Optionally, the shape of the correction platform 410 can be set as a rectangular plate to match the shape of the stacked pieces, which can improve space utilization.

[0149] The vision inspection component 420 is located above the correction platform 410 and is used to acquire images of the electrode sheet fixed on the correction platform 410. The electrode sheet includes the electrode sheet to be corrected and a standard stack. Image acquisition of the standard stack is used to determine the rotation center coordinates of the correction platform 410, and image acquisition of the electrode sheet to be corrected is used to obtain the deflection angle and offset. The vision inspection component 420 can be a single imaging unit to capture the entire electrode sheet, or two or more units can be set up to jointly capture the overall image of the electrode sheet; no limitation is made here. The vision inspection component 420 can be a 2D area scan camera or a line scan camera, etc., as long as it can acquire 2D images of the electrode sheet. Optionally, the vision inspection component 420 can also be a 3D camera, such as a laser scanning camera or a TOF camera.

[0150] The correction drive assembly 430 is a power mechanism used to drive the correction platform 410, thereby adjusting the position to be corrected. The correction drive assembly 430 can realize linear movement of the correction platform 410 along the X and Y axes, as well as rotational movement within the planes containing the X and Y axes. Optionally, the correction drive assembly 430 can be a motor assembly or a cylinder structure; no limitation is made here.

[0151] The control device includes a host computer and a slave computer. The host computer can be a server, including a processing module, a storage module, and a computer program stored on the storage module and executable on the processing module. This enables it to perform the steps of the electrode correction method in any of the above examples: acquiring initial images and standard stacked images, performing calculations, and obtaining the offset and deflection angle of the electrode to be corrected. The slave computer is a microprocessor or industrial control center structure that operates the specific control device. It is electrically connected to the vision inspection component 420 and the correction drive component 430, thereby controlling their operation and transmitting the acquired results to the server for processing and analysis, effectively improving processing efficiency.

[0152] The electrode alignment device 400 of the present invention captures an initial image of the electrode to be aligned using a vision inspection component 420, analyzes and processes the image using a host computer of the control device, and then controls the alignment drive component 430 to adjust the alignment platform 410, thereby achieving the alignment operation of the electrode to be aligned. Specifically, when calculating the offset of the electrode to be aligned, the host computer of the control device first determines the rotation center of the alignment platform 410. When the center of the electrode to be aligned does not coincide with the rotation center of the alignment platform 410, the coordinate point after rotation can be obtained based on the rotation center. The offset is then obtained by comparing this coordinate point with the center of a standard stack. The control device with this logic control can accurately determine the offset of the alignment, control the alignment error, meet the process requirements of solid-state battery stacking and core formation, and improve battery performance.

[0153] In one embodiment of the present invention, the visual inspection component 420 includes four visual inspection elements 421, which are spaced apart above the correction platform 410 and are used to capture the four apex corners of the electrode to be corrected, and the images of the four apex corners constitute the initial image.

[0154] Understandably, since the electrode itself is rectangular, in this embodiment, the visual inspection component 420 includes four visual inspection elements 421, each corresponding to one of the four vertices of the electrode to be corrected or the standard stacked electrode. By stitching together the images of the four vertices, the overall image of the electrode can be obtained. When the image captured is of the vertices of the electrode to be corrected, the initial image can be obtained. When the image captured is of the vertices of the standard stacked electrode, the standard stacked electrode image can be obtained. Specifically, each visual inspection element 421 includes a 2D camera and a corresponding light source. The light source provides supplementary lighting for the 2D camera when capturing images, increasing the camera's grayscale contrast, improving the shooting effect, and thus improving the detection accuracy. The light source can be a planar light source, so that the light is evenly illuminating the surface of the object being illuminated, without producing obvious dark corners or light spots, and the brightness is easily adjustable to meet different environments.

[0155] Understandably, the imaging horizontal lines of the four visual inspection elements 421 are on the same straight line, which ensures that the edges of the images at the four corners are parallel to each other and facilitates subsequent stitching to generate the overall image. Optionally, two visual inspection elements 421 are arranged side by side, with two visual inspection elements 421 arranged in the width direction of the electrode to form a group of imaging units. The two groups of imaging units are spaced apart in the length direction of the electrode. Therefore, the imaging ranges of the visual inspection elements 421 within a group of imaging units can partially overlap or not interfere with each other, which is not limited here. The imaging ranges between the two groups of imaging units are spaced apart, which helps to control the detection accuracy of each visual inspection element 421.

[0156] In this example, the visual inspection component 420 is divided into four visual inspection elements 421, so that the four visual inspection elements 421 respectively capture images of the four vertices of the standard stacked film or the electrode to be corrected, thereby improving the shooting accuracy of each visual inspection element 421, so that the control device can obtain clearer images and improve the processing accuracy.

[0157] Please continue to refer to Figure 4 In one embodiment of the present invention, the visual inspection component 420 further includes a mounting bracket 422, and two mounting portions 4221 are respectively provided on opposite sides of the mounting bracket 422. One of the visual inspection components 421 is mounted on one of the mounting portions 4221. Each mounting portion 4221 is slidably disposed relative to the mounting bracket 422 so as to be movable in the width direction of the electrode.

[0158] In this embodiment, the mounting frame 422 is a structure that provides a mounting base for the visual inspection component 421. The mounting frame 422 can be a frame structure, a plate structure, or other strip-shaped structures or boxes, etc., and is not limited here. Optionally, the mounting frame 422 is a strip-shaped plate, with mounting parts 4221 installed on its opposite sides. These mounting parts 4221 are used to mount the visual inspection component 421. Of course, the mounting frame 422 also needs to be fixed above the correction platform 410 by other support structures, which will not be elaborated here. In one example, the mounting part 4221 is a solid structure, such as a block structure or a plate structure. The connection between the visual inspection component 421 and the mounting part 4221 can be a threaded connection, a snap-fit ​​connection, or a fixed connection, etc., and is not limited here. Meanwhile, the mounting portion 4221 can be slidably disposed relative to the mounting bracket 422. For example, one of the mounting portion 4221 and the mounting bracket 422 may be provided with a slide rail, and the other with a slider, thereby enabling the vision inspection element 421 to move in the extending direction of the mounting bracket 422, that is, in the width direction of the electrode sheet. In other examples, the mounting portion 4221 may be a groove structure, and the vision inspection element 421 may be directly slidably disposed within the groove structure, thereby realizing the movement of the vision inspection element 421.

[0159] In this example, the visual inspection element 421 is movable relative to the mounting bracket 422 in the width direction of the electrode, thereby adjusting the coverage of the two visual inspection elements 421 to adapt to electrodes of different sizes and improve applicability.

[0160] In one embodiment of the present invention, each of the visual inspection elements 421 is movably disposed in the vertical direction relative to the mounting portion 4221.

[0161] In this embodiment, the mounting portion 4221 has a sliding groove extending vertically. The visual inspection element 421 slides within this groove, thereby achieving vertical movement to adjust the shooting distance. Optionally, a guide structure is also provided on the mounting portion 4221 to guide the movement of the visual inspection element 421 and improve its stability. In another example, a protrusion can be provided on the mounting portion 4221, and a sliding groove can be formed on the outer periphery of the visual inspection element 421.

[0162] In this example, the shooting field of view and focus of the visual detection element 421 can be changed by moving it in the vertical direction, thereby improving the shooting quality and coping with electrodes of different sizes.

[0163] In addition, the plate structure of the mounting bracket 422 includes two spaced plates, each plate is equipped with two visual inspection elements 421, and the two ends of the two plates are connected to an adjustment structure with a sliding groove, so that the distance between the two plates, that is, the distance in the length direction of the electrode, can be adjusted, thereby further accommodating electrodes of different sizes.

[0164] In one embodiment of the present invention, the correction drive assembly 430 includes an X-axis drive 431, a Y-axis drive 432, and an R-axis drive. The X-axis drive 431 drives the correction platform 410 to move linearly in the X direction, the Y-axis drive 432 drives the correction platform 410 to move linearly in the Y direction, and the R-axis drive drives the correction platform 410 to rotate in a surface parallel to the X and Y directions.

[0165] In this embodiment, a coordinate system is established using two adjacent sides of the correction platform 410 as coordinate axes, with one side representing the X-axis and the other the Y-axis. The X-axis drive 431 drives the correction platform 410 to move linearly along the X-axis, and the Y-axis drive 432 drives the correction platform 410 to move linearly along the Y-axis. The R-axis drive can drive the correction platform 410 to rotate within a surface parallel to the X and Y directions. The X-axis drive 431 and Y-axis drive 432 can be any structure capable of linear drive, such as a ball screw module, a synchronous belt module, a rack and pinion module, or a cylinder module, etc., and are not limited here. The R-axis drive can be a combination of a motor and a transmission mechanism to achieve rotary drive. One of the X-axis drive unit 431 and the Y-axis drive unit 432 can be placed at the bottom, the other in the middle, and the R-axis drive unit at the top. This allows the correction platform 410 to move along one of the X-axis and Y-axis, while simultaneously moving the other and the R-axis drive unit, thereby improving the rotational stability of the correction platform 410.

[0166] The three-axis motion mechanism drives the correction platform 410 to move, thereby improving the correction accuracy and making it suitable for high-precision scenarios.

[0167] Please refer to Figure 3 The present invention also proposes a battery processing system, including an electrode alignment device 400 as described in any of the preceding embodiments. The electrode alignment device 400 of this battery processing system adopts all the technical solutions of all the above embodiments, and therefore possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0168] In this example, the battery processing system includes two electrode alignment devices 400 and a stacking platform 500. The two electrode alignment devices 400 respectively align the positive and negative electrode sheets, and the stacking platform 500 is located between the two electrode alignment devices 400. The battery processing system also includes a transfer device for placing the aligned electrode sheets from the alignment platform 410 onto the stacking platform 500 for stacking, thus forming a stacked electrode assembly.

[0169] This battery processing system effectively achieves automatic stacking of positive and negative electrode sheets, precisely controls alignment errors, improves stacking efficiency, and meets the process requirements for solid-state battery stacking and core formation. The two electrode alignment devices 400 can be independent alignment systems, each with its own control device, thereby enabling simultaneous alignment of positive and negative electrodes, improving stacking efficiency, and meeting production capacity demands.

[0170] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for electrode correction in an electrode correction device, wherein the electrode correction device comprises a host computer, a slave computer, a vision inspection component, a correction drive component, and a correction platform, characterized in that, The electrode correction method includes: Obtain the rotation center coordinates of the correction platform and the center coordinates of the standard stacked image; Obtain the initial image of the electrode to be corrected; The offset and deflection angle are calculated based on the center coordinates of the standard stacked image, the center coordinates of the initial image, and the rotation center coordinates. The lower-level control unit corrects the deviation of the correction platform based on the offset and deflection angle.

2. The electrode correction method as described in claim 1, characterized in that, The steps for obtaining the rotation center coordinates of the correction platform and the center coordinates of the standard stacked image include: Obtain the first test image of the initial standard stack, and the center coordinates of the first test image; The lower-level control unit causes the correction platform to rotate by a preset angle; The second test image of the standard stacked sheet is acquired again; The rotation center coordinates of the correction platform are calculated based on the first test image and the second test image.

3. The electrode correction method as described in claim 2, characterized in that, The step of calculating the rotation center coordinates of the correction platform based on the first test image and the second test image includes: Obtain the coordinates of the first vertex and the second vertex of the first test image, and simultaneously obtain the coordinates of the first vertex and the second vertex of the second test image; Obtain the first perpendicular bisector of the line connecting the first vertex of the first test image and the first vertex of the second test image; obtain the second perpendicular bisector of the line connecting the second vertex of the first test image and the second vertex of the second test image. Obtain the coordinates of the intersection point of the first perpendicular bisector and the second perpendicular bisector. These coordinates are the rotation center coordinates of the correction platform.

4. The electrode correction method as described in claim 2, characterized in that, The visual inspection component includes four visual inspection elements, and the step of acquiring the initial image of the pole piece to be corrected includes: Sending instructions to the lower-level computer to control the four vision detection devices to acquire local images of the four vertices of the electrode to be corrected; Acquire the four local images and place them in the same coordinate system of the standard stack; The four local images are stitched together to form the initial image.

5. The electrode correction method as described in claim 4, characterized in that, The step of calculating the offset and deflection angle based on the center coordinates of the standard stacked image, the center coordinates of the initial image, and the rotation center coordinates includes: Obtain two edges on the same side of the standard stacked image and the initial image, and obtain the deflection angle α of the electrode to be corrected based on the two edges; The initial image is rotated according to the deflection angle α, and the center coordinates of the deflected initial image are obtained according to the rotation center coordinates and the center coordinates of the initial image. The offset is obtained based on the difference between the center coordinates of the initial image after deflection and the center coordinates of the standard stacked image.

6. The electrode correction method as described in claim 5, characterized in that, The step of rotating the initial image according to the deflection angle α and obtaining the center coordinates of the deflected initial image according to the rotation center coordinates and the center coordinates of the initial image includes: Obtain the angle β between the line connecting the center coordinates of the initial image and the rotation center coordinates and the x-coordinate of the coordinate system; The center coordinates of the deflected initial image are calculated based on the angle β, the deflection angle α, the distance between the center coordinates of the initial image and the rotation center coordinates, and the rotation center coordinates.

7. The electrode correction method as described in claim 1, characterized in that, After the step of obtaining the rotation center coordinates of the correction platform and the center coordinates of the standard stacked image, and before the step of obtaining the initial image of the pole piece to be corrected, the method further includes: The rotation center coordinates of the correction platform and the center coordinates of the standard stacked image are stored.

8. The electrode correction method as described in claim 1, characterized in that, The step of controlling the lower-level computer to move and correct the correction platform according to the offset and deflection angle includes: The deflection angle and offset are sent to the lower-level machine so that the lower-level machine controls the correction drive component to first rotate the correction platform according to the deflection angle, and then move the correction platform according to the offset.

9. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the electrode correction method as described in any one of claims 1 to 8.

10. An electrode alignment device, characterized in that, include: A correction platform, used to fix the standard stacked wafers and the electrode to be corrected; A visual inspection component is positioned above the correction platform and is used to capture standard stacked images and initial images of the electrode to be corrected. A correction drive component is connected to the correction platform and located below the correction platform to drive the correction platform to move linearly on the X-axis and Y-axis, and to rotate within the two-dimensional plane containing the X-axis and Y-axis. as well as A control device comprising an upper computer and a lower computer electrically connected, the lower computer being electrically connected to the vision detection component and the correction drive component, the upper computer comprising a processing module, a storage module, and a computer program stored on the storage module and executable on the processing module, the computer program being configured to implement the steps of the electrode correction method as described in any one of claims 1 to 8.

11. The electrode alignment device as described in claim 10, characterized in that, The visual inspection component includes four visual inspection elements, which are spaced apart above the correction platform and are used to capture images of the four apex corners of the electrode to be corrected. The images of the four apex corners constitute the initial image.

12. The electrode alignment device as described in claim 11, characterized in that, The visual inspection component also includes a mounting frame, with two mounting portions on opposite sides of the mounting frame. One of the visual inspection components is mounted on one of the mounting portions, and each mounting portion is slidably disposed relative to the mounting frame so as to be movable in the width direction of the electrode.

13. The electrode alignment device as described in claim 12, characterized in that, Each of the aforementioned visual inspection components is movably disposed in the vertical direction relative to the mounting portion.

14. The electrode alignment device as described in any one of claims 10 to 13, characterized in that, The correction drive assembly includes an X-axis drive, a Y-axis drive, and an R-axis drive. The X-axis drive drives the correction platform to move linearly in the X direction, the Y-axis drive drives the correction platform to move linearly in the Y direction, and the R-axis drive drives the correction platform to rotate in a surface parallel to the X and Y directions.

15. A battery processing system, characterized in that, Includes the electrode alignment device as described in any one of claims 10 to 14.

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