Cell glue application apparatus and cell glue application method

Abstract

A cell glue application apparatus and a cell glue application method. The cell glue application apparatus comprises a visual positioning device (20), a glue application device, and a conveying device (40); the visual positioning device (20) is configured to acquire graphic parameters of a cell (10) located on a visual positioning station; the glue application device is configured to perform glue application treatment on the cell (10) on the basis of the acquired graphic parameters of the cell (10); and the conveying device (40) is configured to convey the cell (10) from the visual positioning station of the visual positioning device (20) to a glue application station of the glue application device.

Description

Solar cell gluing equipment and gluing method

[0001] This application claims priority to Chinese patent application No. CN2024202858904 filed on February 6, 2024, the contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the field of solar cell manufacturing, and in particular to a solar cell gluing device and a gluing method. Background Art

[0003] In the production process of photovoltaic cells, the process of coating the cell with glue is involved. For example, in the process of preparing the grid lines on the cell by electroplating, the side of the cell will be exposed to the electroplating solution, so that the side of the cell is also plated with the coating, which will easily cause the cell to short-circuit. In addition, the coating on the side of the cell is not firmly connected to the cell, which causes the metal particles in the coating to easily fall off and be transferred to the NP surface of the cell with the electroplating solution, affecting the yield and efficiency of the cell. Therefore, it is necessary to apply glue on the side of the cell in advance to form a protective layer to protect the side of the cell from being electroplated. This process is called the glue coating process of the cell. For conventional rectangular cells, glue can be applied to the side of the cell, the chamfers and the edges around the two surfaces to better protect the side of the cell from being electroplated.

[0004] The cell processing process involves cutting a full-cell cell down the middle into two half-cells, and then subsequently processing the half-cells. When cutting a full-cell cell, a small amount is usually cut inward from the middle of one end of the full-cell cell, and the remaining portion naturally cracks due to the tension after cutting. The long side edges formed by the cracking of the full-cell cell are likely to be irregular, that is, the two long sides are not parallel, forming a misshapen half-cell cell. There are also other possibilities that may cause the side edges of the full-cell cell or half-cell cell to be irregular, forming a misshapen full-cell cell or misshapen half-cell cell. For ease of description, both full-cell cells and half-cell cells are referred to as cells below.

[0005] In existing gluing equipment and methods, special-shaped battery cells are usually directly glued as normal battery cells. This will result in irregular gluing on the special-shaped sides, and some areas cannot be completely coated with glue, which will affect the subsequent processing of the battery cells and reduce the yield of the finished product.

[0006] In view of the above, it is necessary to propose a new battery cell gluing device and gluing method. Summary of the Invention

[0007] In view of the above-mentioned shortcomings of the prior art, an object of the embodiments of the present invention is to provide a battery cell gluing device and a gluing method to at least solve one or more problems in the prior art.

[0008] One aspect of the present invention provides a cell gluing device, the cell gluing device comprising:

[0009] A visual positioning device, wherein the visual positioning device is correspondingly provided with a visual positioning station, and the visual positioning device is configured to obtain graphic parameters of the battery cell located at the visual positioning station;

[0010] A gluing device, located downstream of the visual positioning device, is provided with a corresponding gluing station. In a working state, the gluing device is configured to perform gluing on the battery cell according to the acquired graphic parameters of the battery cell;

[0011] A conveying device is configured to convey the battery cell from the visual positioning station to the gluing station.

[0012] In some embodiments, the visual positioning device includes:

[0013] Fixed seat support frame;

[0014] A camera fixing seat, the camera fixing seat being movably arranged on the fixing seat support frame in an up-down direction;

[0015] a camera fixing member, the camera fixing member being movably disposed on the camera fixing seat along a first direction;

[0016] A camera group, wherein the camera group includes a plurality of cameras, wherein the cameras are movably arranged on the camera fixing member along the second direction, and the cameras are configured to photograph and position the battery cell to obtain graphic parameters of the battery cell, wherein the first direction, the second direction and the up and down directions are perpendicular to each other, and the first direction and the second direction extend in the horizontal direction respectively.

[0017] In some embodiments, the camera group includes a central camera and two groups of edge cameras, the central camera is located in the middle area of ​​the camera fixing seat, and the two groups of edge cameras are respectively located on both sides of the camera fixing seat, wherein the central camera and the edge cameras can both move along the second direction relative to the camera fixing member.

[0018] In some embodiments, the camera fixing member includes a central camera fixing member and two edge camera fixing members, the central camera fixing member is arranged in the middle area of ​​the camera fixing seat, and the two edge camera fixing members are arranged on opposite sides of the camera fixing seat, and the central camera fixing member and the two edge camera fixing members can be movably arranged on the camera fixing seat along the first direction, wherein the central camera is movably connected to the central camera fixing member, and the edge camera is movably connected to the edge camera fixing member.

[0019] In some embodiments, the glue coating device includes:

[0020] A gluing assembly, comprising a gluing support and a gluing wheel disposed on the gluing support, wherein the gluing assembly is configured to perform gluing on the battery cell;

[0021] A lifting module, the gluing assembly is arranged on the lifting module, and the lifting module is configured to drive the gluing assembly to move along the up and down direction;

[0022] Plane module, the lifting module is arranged on the planar module, the planar module includes a first direction linear module, a second direction linear module and a fixed seat, the first direction linear module is arranged on the second direction linear module, the second direction linear module is arranged on the fixed seat, in the working state, the planar module is configured to drive the gluing component to move along the first direction and / or the second direction.

[0023] In some embodiments, the glue coating device includes:

[0024] A first sub-glue coating device, wherein the first sub-glue coating device is correspondingly provided with a first sub-glue coating station, and the first sub-glue coating device is configured to perform glue coating on the relatively long sides of the battery cell;

[0025] A second sub-glue coating device, wherein the second sub-glue coating device is correspondingly provided with a second sub-glue coating station, and the second sub-glue coating device is configured to perform glue coating on the relatively short side edges of the battery cell;

[0026] The third sub-glue coating device is correspondingly provided with a third sub-glue coating station, and the third sub-glue coating device is configured to perform glue coating on the chamfers of the battery cell.

[0027] In some embodiments, the transmission device comprises:

[0028] A transport carrier, the transport carrier is configured to carry a battery cell, the transport carrier is provided with a plurality of adsorption holes, the plurality of adsorption holes are interconnected, the adsorption holes are also connected to a vacuum generator, and the vacuum generator is configured to adsorb the battery cell through the adsorption holes;

[0029] A first rotating device is located below the transmission platform, and is configured to drive the transmission platform to rotate around a center line extending in an up-down direction.

[0030] In some embodiments, the transmission device further comprises:

[0031] A rotating platform device, the rotating platform device includes M processing tables, and M processing stations are arranged along the circumference of the rotating platform device, one processing table corresponds to one processing station, the processing table is configured to rotate and transfer the battery cells to each processing station, the processing stations at least include a loading station, the visual positioning station and an unloading station in sequence, a second rotating device is provided on the processing table, and the second rotating device is configured to drive the processing table to rotate around a rotation axis extending in the up and down directions, wherein M≥3, and M is an integer.

[0032] In some embodiments, the battery cell gluing equipment further includes a loading device, which is located upstream of the visual positioning device and is configured to transfer the battery cell to be gluing to the visual positioning station.

[0033] In some embodiments, the battery cell gluing equipment further includes a material unloading device, which is located downstream of the gluing device and is configured to unload battery cells that have completed the gluing process.

[0034] In some embodiments, the battery cell gluing device further includes a curing device, which is located downstream of the gluing device and is configured to perform a curing process on the battery cell after the gluing process.

[0035] In some embodiments, the battery cell gluing equipment further includes a machine platform, and the machine platform is configured to carry various devices on the battery cell gluing equipment.

[0036] Another aspect of the present invention provides a method for coating a battery cell with glue, the method comprising the following steps:

[0037] S1. Obtain a calibrated gluing path, where the calibrated gluing path includes a plurality of calibrated sub-gluing paths connected in sequence;

[0038] S2. Obtaining graphic parameters of the battery cell to be glued, wherein the graphic parameters include the length of the sub-glueing path corresponding to each side of the battery cell to be glued, and the angle between the sub-glueing path corresponding to each side of the battery cell to be glued and the calibration sub-glueing path;

[0039] S3, determining the entire gluing path of the battery cell to be glued according to the acquired graphic parameters of the battery cell to be glued;

[0040] S4, applying glue to the edges of the battery cell along the entire glue application path of the battery cell to be glued.

[0041] In some embodiments, in step S3, the entire gluing path of the battery cell to be glued is determined, including determining a turning angle from a previous sub-gluing path to a next sub-gluing path.

[0042] In some embodiments, the turning angle from the previous calibrated sub-gluing path to the next calibrated sub-gluing path is 90 degrees, then the turning angle from the previous sub-gluing path to the next sub-gluing path is 90+θx-θy degrees, where θx is the angle between the previous sub-gluing path and the corresponding calibrated sub-gluing path, and θy is the angle between the next sub-gluing path and the corresponding calibrated sub-gluing path.

[0043] In some embodiments, the calibration gluing path is obtained based on the edge contours of the four sides of the rectangular battery cell, and the calibration gluing path is a closed figure formed by sequentially connecting L1a, L2a, L3a and L4a, and L1a, L2a, L3a and L4a are calibration sub-gluing paths, wherein the rectangular battery cell includes four sides L1, L2, L3 and L4 connected in sequence, and the edge contours of the four sides L1, L2, L3 and L4 correspond to the calibration sub-gluing paths L1a, L2a, L3a and L4a.

[0044] In some embodiments, the battery cell to be glued includes four sides L11, L21, L31 and L41 connected in sequence, and the glue path of the battery cell to be glued is a closed figure formed by sequentially connecting L11a, L21a, L31a and L41a, L11a, L21a, L31a and L41a are sub-glue paths corresponding to each side, wherein the angle between the L1a sub-glue path and the L11a sub-glue path is θ1, the angle between the L2a sub-glue path and the L21a sub-glue path is θ2, the angle between the L3a sub-glue path and the L31a sub-glue path is θ3, and the angle between the L4a sub-glue path and the L41a sub-glue path is θ4.

[0045] In some embodiments, when applying glue, the turning angle from the L11a sub-glue applying path to the L21a sub-glue applying path is 90+θ1-θ2 degrees, the turning angle from the L21a sub-glue applying path to the L31a sub-glue applying path is 90+θ2-θ3 degrees, the turning angle from the L31a sub-glue applying path to the L41a sub-glue applying path is 90+θ3-θ4 degrees, and the turning angle from the L41a sub-glue applying path to the L11a sub-glue applying path is 90+θ4-θ1 degrees.

[0046] In some embodiments, when the angle θ1 and the angle θ3 are both 0 degrees, and the angle θ2 and the angle θ4 are both greater than 0 degrees, glue is applied to the L11 side along the L11a sub-glue application path, and glue is applied to the L31 side along the L31a sub-glue application path; after the glue is applied to the L11 side and the L31 side, the battery cell to be glued is rotated so that one of the sides, L21 side and L41 side, is parallel or collinear with the corresponding calibration sub-glue application path to obtain the L22a and L42a sub-glue application paths, and then glue is applied along the L22a and L42a sub-glue application paths.

[0047] In some embodiments, after the glue coating is completed on the L11 side and the L31 side, the battery cell to be glued is rotated so that the L41 side and the L4a calibration sub-glue coating path are parallel or collinear to obtain the L22a and L42a sub-glue coating paths, and glue is applied along the L22a and L42a sub-glue coating paths.

[0048] In some embodiments, the included angle between the L22a sub-gluing path and the L2a calibration sub-gluing path is θ5 = θ2 - θ4 or θ5 = θ2 + θ4.

[0049] In some embodiments, when the side of the battery cell to be glued is non-straight, the two endpoints of the edge contour of the side are obtained to form a sub-glue coating path; or, the coordinate parameters of multiple points on the edge contour of the side are obtained, and linear fitting is performed on the multiple points, and the fitted straight line is used as the sub-glue coating path corresponding to the side.

[0050] In some embodiments, in step S1, a rectangular cell as a calibration object is photographed to obtain an edge contour image of the rectangular cell;

[0051] Step S2: take a picture of the battery cell to be glued to obtain an edge contour image of the battery cell to be glued;

[0052] The edge contour image of the rectangular battery cell and the edge contour image of the battery cell to be glued are obtained by photographing in the same environment.

[0053] In some embodiments, an edge contour image of the rectangular battery cell and an edge contour image of the battery cell to be glued are obtained through a visual positioning device, and the obtained edge contour image of the rectangular battery cell and the edge contour image of the battery cell to be glued are overlapped to obtain the difference between the contour edge of the battery cell to be glued and the contour edge of the rectangular battery cell, and then the gluing path for gluing the edge of the battery cell to be glued is adjusted according to the difference.

[0054] In some embodiments, the gluing method is implemented based on the above-mentioned cell gluing equipment.

[0055] The application of the above technical solution has the following beneficial effects:

[0056] The battery cell gluing equipment of the embodiment of the present invention obtains the graphic parameters of the battery cell to be glued through a visual positioning device, and glues the battery cell according to the obtained graphic parameters of the battery cell through the gluing device. It can not only directly glue the conventional battery cell, but also fit multiple points on the irregular side of the irregular battery cell into a straight line edge, and compare the fitted straight line with the benchmark straight line, and calculate the position coordinate compensation value required for gluing the irregular side edge by comparison. At the same time, it can also perform position compensation when gluing the irregular side edge through the fitting result, so that the glue can be completely applied to the side of the battery cell, thereby improving the preparation yield of the battery cell and increasing the stability and continuity of the gluing process of the battery cell. Each device in the battery cell gluing equipment of the embodiment of the present invention has a compact structure, occupies a small area, is easy to maintain, and reduces the failure rate and maintenance cost of the equipment.

[0057] The battery cell gluing method provided by the embodiment of the present invention first obtains a calibrated gluing path, then obtains the graphic parameters of the battery cell to be glued, and determines the entire gluing path of the battery cell to be glued based on the obtained graphic parameters of the battery cell to be glued. Along the entire gluing path of the battery cell to be glued, the edge of the battery cell can be glued. This not only allows conventional battery cells to be directly glued, but also allows special-shaped battery cells to be glued, thereby improving the production yield of the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] FIG1 is a schematic diagram of a prior art method of forming two irregularly shaped half-cells after cutting a full-cell;

[0059] FIG2 is a schematic structural diagram of a first battery cell gluing device according to an embodiment of the present invention;

[0060] FIG3 is a schematic structural diagram of a second battery cell gluing device according to an embodiment of the present invention;

[0061] FIG4 is a schematic structural diagram of a visual positioning device according to an embodiment of the present invention;

[0062] FIG5 is a schematic top view of a visual positioning device according to an embodiment of the present invention;

[0063] FIG6 is a schematic structural diagram of a gluing device according to an embodiment of the present invention;

[0064] FIG7 is a schematic side view of a transmission device according to an embodiment of the present invention;

[0065] FIG8 is a schematic diagram of four sides of a battery cell that is a rectangular battery cell or a rounded rectangular battery cell in an embodiment of the present invention;

[0066] FIG9 is a schematic diagram of the sub-glue coating paths (calibrated sub-glue coating paths) corresponding to the four sides of the battery cell in FIG8 ;

[0067] FIG10 is a schematic diagram of four sides of a battery cell of a special-shaped battery cell according to an embodiment of the present invention;

[0068] FIG11 is a schematic diagram of the angles between the sub-glue coating paths corresponding to the four sides of the battery cell in FIG10 and the calibrated sub-glue coating paths;

[0069] FIG12 is a schematic diagram of four sides of a battery cell of a special-shaped battery cell according to another embodiment of the present invention;

[0070] FIG13 is a schematic diagram of the angles between the sub-glue coating paths corresponding to the four sides of the battery cell in FIG12 and the calibrated sub-glue coating paths;

[0071] FIG14 is a schematic diagram of applying glue to two sides of a battery cell that is not irregularly shaped when the battery cell is irregularly shaped in another embodiment of the present invention;

[0072] FIG15 is a schematic diagram of applying glue to the other two side edges (special-shaped side edges) of the special-shaped battery cell of FIG14 ;

[0073] FIG16 is a schematic diagram showing the principle of fitting the sub-glue coating path of a side edge of a special-shaped battery cell when the side edge is non-linear;

[0074] In the above drawings: 10-battery cell; 20-visual positioning device; 21-camera seat support frame; 22-camera fixing seat; 221-through groove; 231-middle camera fixing piece; 232-edge camera fixing piece; 241-middle camera; 242-edge camera; 31-first sub-gluing device; 32-second sub-gluing device; 33-third sub-gluing device; 34-gluing assembly; 341-gluing bracket; 342-gluing wheel; 35-lifting module; 36-plane module; 361-first direction linear module; 362-second direction linear module; 363-fixed seat; 40-transmission device; 41-transmission carrier platform; 42-first rotating device; 43-rotating platform device; 431-processing table; 50-curing device; 60-loading device; 61-loading flow channel; 70-unloading device; 71-unloading flow channel. DETAILED DESCRIPTION

[0075] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention.

[0076] For example, when describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional views showing the device structures will not be partially enlarged according to the general scale, and the schematic views are only examples and should not limit the scope of protection of the present invention.

[0077] For ease of description, spatially relative terms such as "under," "below," "below," "below," "above," and "on" may be used herein to describe the relationship of one structure or feature shown in the drawings to other structures or features. It will be understood that these spatially relative terms are intended to encompass other orientations of the device in use or operation in addition to the orientation depicted in the drawings. Additionally, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may also be present. As used herein, "between" is inclusive of both endpoints.

[0078] In the context of the present application, a structure described as a first feature being "above" a second feature may include embodiments where the first and second features are formed in direct contact, and may also include embodiments where an additional feature is formed between the first and second features, such that the first and second features may not be in direct contact.

[0079] Please refer to Figures 1 to 7. It should be noted that the figures provided in this embodiment are merely schematic illustrations of the basic concept of the present invention. Therefore, the figures only show components relevant to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, number, and proportion of each component may be arbitrarily changed, and the component layout may also be more complex.

[0080] To facilitate description and understanding of the specific structure of the cell gluing device, this embodiment constructs a three-dimensional space coordinate system in the cell gluing device, wherein the first direction X, the second direction Y, and the up-down direction Z are perpendicular to each other, and the first direction X and the second direction Y extend in the horizontal direction respectively.

[0081] As shown in Figure 1, a full-cell cell 10 is cut into two irregularly shaped half-cells 10. Existing cell gluing equipment typically treats irregularly shaped cells 10 as normal cells 10 for gluing. This results in irregular gluing along the irregularly shaped sides, with some areas not being fully coated with glue. This affects subsequent processing of the cell 10 and reduces the yield rate of the finished product.

[0082] In view of the problems existing in the prior art, as shown in Figures 2 and 3, this embodiment provides a cell gluing device, which includes: a visual positioning device 20, a gluing device, and a transmission device 40; the visual positioning device 20 is correspondingly provided with a visual positioning station, and the visual positioning device 20 is configured to obtain the graphic parameters of the cell 10 at the visual positioning station. The specific graphic parameters refer to the edge contour shape and size of the cell 10; the gluing device is located downstream of the visual positioning device 20, and the gluing device is correspondingly provided with a gluing station. Under working conditions, the gluing device is configured to perform gluing on the cell 10 according to the obtained graphic parameters of the cell 10; the transmission device 40 is configured to transfer the cell 10 to be glued from the visual positioning station to the gluing station. The cell gluing device also includes a control module to achieve automated and coordinated control of the visual positioning device 20, the gluing device, and the transmission device 40. The cell gluing device also includes a machine platform, which is configured to carry various devices on the cell gluing device.

[0083] The cell gluing equipment of this embodiment obtains the graphic parameters of the cell 10 to be glued through the visual positioning device 20, and glues the cell 10 according to the obtained graphic parameters of the cell 10 through the gluing device. It can not only directly glue the conventional cell 10, but also fit multiple points on the irregular side of the irregular cell 10 into a straight line, and compare the fitted straight line with the benchmark straight line, and calculate the position coordinate compensation value required for gluing the irregular side by comparison. According to the fitting result, position compensation is performed when gluing the irregular side, so that the glue can be completely applied to the side of the cell 10, thereby improving the preparation yield of the cell and increasing the stability and continuity of the gluing of the cell 10. Each device in the cell gluing equipment of this embodiment has a compact structure, a small footprint, and is easy to maintain, thereby reducing the failure rate and maintenance cost of the equipment.

[0084] In order to obtain the graphic parameters of the battery cell 10 at the visual positioning station, as shown in Figures 4 and 5, in a specific example that can be implemented, the visual positioning device 20 includes: a camera seat support frame 21, a camera fixing seat 22, a camera fixing part and a camera group; the camera fixing seat 22 is movably arranged on the camera seat support frame 21 along the up and down direction Z; the camera fixing part is movably arranged on the camera fixing seat 22 along the first direction Y; the camera group includes a plurality of cameras, and the cameras are movably arranged on the camera fixing part along the second direction Y. The cameras are configured to photograph and position the battery cell 10 to obtain the graphic parameters of the battery cell 10.

[0085] Specifically, the camera mount support frame 21 is provided with a first guide rail extending in the vertical direction Z. A first slider is provided on one side of the camera fixing base 22. The first slider of the camera fixing base 22 is inserted into the first guide rail of the camera mount support frame 21, enabling the camera fixing base 22 to drive the camera assembly to reciprocate along the vertical direction Z on the camera mount support frame 21. The camera fixing base 22 is provided with a plurality of through slots 221. The through slots 221 are provided with second guide rails extending in the first direction X. Second sliders are provided on both sides of the camera fixing base. The second sliders of the camera fixing base are inserted into the second guide rails of the camera fixing base 22, enabling the camera fixing base to drive the camera assembly to reciprocate along the first direction X on the camera fixing base 22. The camera fixing base is provided with a third guide rail extending in the second direction Y. A third slider is provided on the non-working end of the camera. The third slider of the camera is inserted into the third guide rail of the camera fixing base, enabling the camera to reciprocate along the second direction Y on the camera fixing base. Therefore, the shooting position of the camera is adjusted according to the position of the battery cell 10 to ensure that the camera can accurately obtain the graphic parameters of the battery cell 10. In other examples, the movement mode can also be set according to actual conditions, and no specific restrictions are made here. Among them, the working end of the camera refers to the end with a lens, and the non-working end of the camera and the working end of the camera are two ends that are different along the upper and lower directions Z of the camera. It should be noted here that the lens of the working end of the camera is located below the through groove 221, so that multiple cameras do not affect each other when shooting the battery cell 10 to obtain graphic parameters, which helps to improve the accuracy of camera shooting.

[0086] Furthermore, the visual positioning device 20 also includes a drive assembly, which includes a fixed base driver, a fixed member driver, and a camera driver. The fixed base driver is connected to the camera fixed base 22 to drive the camera fixed base 22 to reciprocate in the up-down direction Z. The fixed member driver is connected to the camera fixed member to drive the camera fixed member to reciprocate in the first direction X. The camera driver is connected to the camera to drive the camera to reciprocate in the second direction Y. Specifically, the fixed base driver, the fixed member driver, and the camera driver can all include linear motors or hydraulic cylinders, as long as they can provide driving force. The actual type of drive assembly can be set according to actual needs and is not limited here.

[0087] As shown in Figures 4 and 5, in one example, the camera mount includes a central camera mount 231 and an edge camera mount 232. The central camera mount 231 is disposed in the central region of the camera mount 22, and two edge camera mounts 232 are disposed on opposite sides of the camera mount 22. The central camera mount 231 and the edge camera mounts 232 are both movably disposed parallel to and along a first direction X on the camera mount 22, thereby driving the camera assembly to reciprocate along the first direction X to fully and accurately capture and record the specific position information of the battery cells. The camera assembly includes two camera groups: one group includes a central camera 241 and the other group includes edge cameras 242. The central camera 241 is located in the central region of the camera mount 22 and is movably connected to the central camera mount 231. The edge cameras 242 are located on either side of the camera mount 22 and are movably connected to the edge camera mounts 232. The central camera 241 and the edge cameras 242 are each movable relative to the camera mount in a second direction Y.

[0088] In one example, the center camera 241 first captures and records data from the center of the cell 10, and the edge camera 242 then captures and records data from the four corners of the cell 10. In another example, the center camera 241 first captures and records data from the center of the cell 10, and the edge camera 242 then captures and records data from the four sides of the cell 10. In another example, the center camera 241 first captures and records data from a preliminary image of the cell 10, and the edge camera 242 then captures and records data from a precise image of the cell 10. By combining the center camera 241 and the edge camera 242, the graphic parameters of the cell 10 can be accurately acquired. If the cell 10 is a special-shaped cell 10 with irregular sides, that is, a side of the cell 10 is an irregular line when projected onto a horizontal plane along the vertical direction Z, the graphic parameters of the entire cell 10 are first acquired, and then the edge camera 242 is moved to focus on capturing the precise image of the irregular side. It should be noted that, in general, the irregular side of a special-shaped cell 10 is a long side. The camera group transmits the captured image of the cell 10 to the control module, which converts the image parameters into coordinate values ​​of multiple consecutive points and feeds them back to the gluing device so that the gluing device can accurately apply glue to the cell 10. If the cell 10 is a special-shaped cell, the control module needs to fit the points of the irregular side. In a preferred example, the parameters of the points on the irregular side are fitted into a straight line to facilitate the gluing device to process the irregular side.

[0089] In order to realize the gluing process of the battery cell whose graphic parameters have been obtained, as shown in FIG6 , in a specific embodiment that can be implemented, the gluing device includes a gluing component 34, a lifting module 35 and a plane module 36; the gluing component 34 includes a gluing bracket 341 and a gluing wheel 342 arranged on the gluing bracket 341, and the gluing component 34 is configured to perform gluing process on the battery cell 10; the gluing component 34 is arranged on the lifting module 35, and the lifting module 35 is configured to drive the gluing component 34 to move back and forth along the up and down direction Z, that is, to rise or fall; the lifting module 36 5 is arranged on the plane module 36, which includes a first-direction linear module 361, a second-direction linear module 362, and a fixed base 363. The first-direction linear module 361 is arranged on the second-direction linear module 362, and the second-direction linear module 362 is arranged on the fixed base 363. In the working state, the plane module 36 is configured to drive the glue coating assembly 34 to reciprocate along the first direction X, or drive the glue coating assembly 34 to reciprocate along the second direction Y, or drive the glue coating assembly 34 to reciprocate along the first direction X and the second direction Y simultaneously.

[0090] Specifically, the glue coating wheel 342 is fixedly arranged on the glue coating bracket 341, and a fourth slider is provided on the side of the glue coating bracket 341 facing away from the glue coating wheel 342; the lifting module 35 includes a lifting guide rail and a lifting drive component, the lifting guide rail is a guide rail extending along the up-down direction Z, the fourth slider on the glue coating bracket 341 is inserted into the lifting guide rail, and the lifting drive component drives the glue coating component 34 to move back and forth along the up-down direction Z under the guidance of the lifting guide rail, so that the glue coating wheel 342 can rise or fall in the up-down direction Z, and the bottom end of the lifting guide rail is provided with a fifth slider; The first-direction linear module 361 includes a first linear guide and a linear drive assembly. The fifth slider of the lifting guide is inserted into the first linear guide. The linear drive assembly drives the lifting module 35 to move back and forth in the first direction X in the first linear guide. The bottom end of the first linear guide is provided with a fifth slider. The second-direction linear module 362 includes a second linear guide and a linear drive assembly. The fifth slider of the first linear guide is inserted into the second linear guide. The linear drive assembly drives the first-direction linear module 361 to move back and forth in the second direction Y in the second linear guide. The specific structural setting of the gluing device can also be set according to actual needs and is not limited here. In actual application, after fitting the points on the irregular side of the irregular-shaped battery cell, a straight line is formed. During the gluing process, it is sufficient to perform position coordinate compensation in the first direction X or the second direction Y.

[0091] As shown in Figure 2, in a specific embodiment, the gluing device includes a first sub-gluing device 31, a second sub-gluing device 32 and a third sub-gluing device 33. The structure of each sub-gluing device is the same as the specific structure of the above-mentioned gluing device. The first sub-gluing device 31 is correspondingly provided with a first sub-gluing station, and the first sub-gluing device 31 is configured to perform gluing on the relatively long side of the battery cell 10; the second sub-gluing device 32 is correspondingly provided with a second sub-gluing station, and the second sub-gluing device 32 is configured to perform gluing on the relatively short side of the battery cell 10; the third sub-gluing device 33 is correspondingly provided with a third sub-gluing station, and the third sub-gluing device 33 is configured to perform gluing on the chamfer of the battery cell 10. In one example, in the transmission direction of the battery cell 10, the first sub-glue coating device 31, the second sub-glue coating device 32, and the third sub-glue coating device 33 are sequentially arranged along one side of the battery cell 10, and the first sub-glue coating device 31, the second sub-glue coating device 32, and the third sub-glue coating device 33 are also sequentially arranged on the opposite side of the battery cell 10. That is, there are two first sub-glue coating devices 31 and two second sub-glue coating devices 32, respectively, and there can be two or four third sub-glue coating devices 33. When there are two third sub-glue coating devices 33, each third sub-glue coating device 33 applies glue to two chamfers of the battery cell 10. When there are four third sub-glue coating devices 33, each third sub-glue coating device 33 applies glue to one chamfer of the battery cell 10. Each time the battery cell 10 passes through a sub-glue coating station, it needs to rotate by a preset angle to apply glue to different sides or chamfers.

[0092] In order to realize the transmission of battery cells at different workstations, as shown in Figure 7, in a specific example that can be implemented, the transmission device 40 includes a transmission carrier 41 and a first rotating device 42. The transmission carrier 41 is configured to carry the battery cell 10. A plurality of adsorption holes are provided on the transmission carrier 41. The plurality of adsorption holes are interconnected. The adsorption holes are also connected to the vacuum generator. The vacuum generator is configured to adsorb the battery cell 10 through the adsorption holes; the first rotating device 42 is located below the transmission carrier 41. The first rotating device 42 is configured to drive the transmission carrier 41 to rotate around the center line extending in the up and down direction Z.

[0093] As shown in Figure 1, in one example, the transmission device 40 is a linear transmission structure, specifically including a linear plate chain structure or a linear belt structure. The plate chain structure or the belt structure moves in a circular motion up and down, and the transmission carrier 41 is arranged in sequence along the transmission direction of the battery cell. The transmission device 40 is sequentially provided with a visual positioning station, a first sub-gluing station, a second sub-gluing station, and a third sub-gluing station. The visual positioning station is correspondingly provided with a visual positioning device 20. Two relatively arranged first sub-gluing devices 31 are arranged around the first sub-gluing station, two relatively arranged second sub-gluing devices 32 are arranged around the second sub-gluing station, and two relatively arranged third sub-gluing devices 33 are arranged around the third sub-gluing station. A transmission carrier 41 is correspondingly provided on each station, and a first rotating device 42 is provided below the transmission carrier 41.

[0094] The specific working process of the battery cell gluing equipment in this example is as follows: the battery cell 10 to be glued, which is carried by the transport carrier 41, obtains the graphic parameters of the battery cell 10 through the visual positioning device 20 at the visual positioning station, and then transmits it to the first sub-gluing station. The first sub-gluing device 31 glues the two relatively long sides of the battery cell 10. When one of the long sides is an irregular side, the flat module 36 of the gluing device directly compensates the position of the irregular side during the gluing process, and then transmits it to the second sub-gluing station. The battery cell 10 passes The first rotating device 42 rotates 90°, and the second sub-gluing device 32 applies glue to the two relatively short sides of the battery cell 10, and then passes it to the third sub-gluing station. The battery cell 10 is rotated by a preset angle through the first rotating device 42, and the third sub-gluing device 33 applies glue to the two relatively chamfered corners of the battery cell 10. Then, the battery cell 10 is rotated in the opposite direction by a preset angle through the first rotating device 42, and the third sub-gluing device 33 applies glue to the other two relatively chamfered corners of the battery cell 10, thereby completing the gluing process of the battery cell 10.

[0095] As shown in Figure 2, in another example, the transmission device 40 also includes a rotating platform device 43, and the rotating platform device 43 includes M processing tables 431. M processing stations are arranged along the circumference of the rotating platform device 43, and one processing table 431 corresponds to one processing station. The processing table 431 is configured to rotate and transmit the battery cell 10 to each processing station. The processing station includes at least a loading station, a visual positioning station and an unloading station in sequence. A second rotating device is provided on the processing table 431, and the second rotating device is configured to drive the processing table 431 to rotate around a rotation axis extending in the up and down direction Z, where M≥3, and M is an integer. It should be noted here that the unloading station coincides with the first sub-gluing station and can also be defined as a gluing station. Preferably, the rotating platform device 43 is a cantilever structure that adsorbs the battery cell 10 from above for transmission.

[0096] The specific working process of the battery cell gluing equipment in this example is as follows: the processing table 431 absorbs the battery cell 10 to be glued at the loading station, and is rotated and transferred to the visual positioning station through the rotating platform device 43. The battery cell 10 obtains the graphic parameters of the battery cell 10 through the visual positioning device 20 at the visual positioning station, and then is rotated and transferred to the unloading station. In this process, the battery cell 10 is rotated by the processing table 431 to set the long side of the battery cell 10 parallel to the transmission and gluing direction of the battery cell 10. The unloading station coincides with the first sub-gluing station in the up and down direction Z. The transmission carrier 41 on the first sub-gluing station receives the battery cell 10 that has obtained the graphic parameters, and the first sub-gluing device 31 performs gluing on the two relatively long sides of the battery cell 10. Gluing process: When a long side is an irregular side, the planar module 36 of the gluing device directly compensates the position of the battery cell 10 during the gluing process, and then transmits it to the second sub-gluing station. The battery cell 10 is rotated 90° by the first rotating device 42. The second sub-gluing device 32 performs glue coating on the two relatively short sides of the battery cell 10, and then transmits it to the third sub-gluing station. The battery cell 10 is rotated by the first rotating device 42 by a preset angle. The third sub-gluing device 33 performs glue coating on the two relative chamfers of the battery cell 10. Then the battery cell 10 is rotated in the opposite direction by a preset angle by the first rotating device 42. The third sub-gluing device 33 performs glue coating on the other two relative chamfers of the battery cell 10, and the gluing process of the battery cell 10 is completed.

[0097] After the battery cell 10 has been glued, the glue applied needs to be cured. As shown in Figures 1 and 2, in a specific example that can be implemented, the battery cell gluing equipment also includes a curing device 50. The curing device 50 is located downstream of the gluing device and is configured to cure the battery cell 10 after the glue is applied. Specifically, the gluing device is arranged next to the transmission device 40. After the battery cell 10 is glued, the glue applied is immediately cured. The curing methods include light curing and heat curing. When the curing device 50 is a laser curing lamp, the laser curing lamp emits light, and the light is irradiated on the glue, and the glue can be cured. When the curing device 50 is a heating lamp, the heat emitted by the light can cure the glue. The curing device 50 can also be a hot air generator, which also provides heat to cure the glue. An exhaust device is also required to discharge the excess heat generated by the heating lamp to prevent the battery cell from being affected by excessive temperature.

[0098] As shown in Figures 1 to 2, in order to realize the loading of the battery cell gluing equipment, in a specific example that can be implemented, the battery cell gluing equipment also includes a loading device 60, which is located upstream of the visual positioning device 20, and the loading device 60 is configured to transfer the battery cell to be glued to the visual positioning station.

[0099] Specifically, the loading device 60 includes a loading channel 61, which is configured to transport the battery cells 10 to be glued along the first direction X. The battery cells 10 to be glued need to be cleaned and corrected before loading. The loading device 60 also includes a blowing device and a correction device. The blowing device is arranged above the loading channel 61, and the blowing device is configured to blow air to remove foreign matter on the battery cells to be glued on the loading channel 61. The correction device is arranged on the side of the loading channel 61, and the correction device is configured to correct the position of the battery cells 10 to be glued on the loading channel 61 to ensure that the position of the battery cells 10 to be glued does not deviate significantly during loading.

[0100] When the transport device 40 only includes a linear transport device, the battery cells 10 can be transported from the loading device 60 to the visual positioning station by a manipulator or other means. The specific configuration can also be adjusted according to actual conditions and is not limited here. When the transport device 40 also includes a rotating platform device 43, the processing stations include a loading station, a visual positioning station, and a gluing station in sequence. The processing table 431 where the loading station is located is located above the loading device 60 and can directly absorb the battery cells 10 to be glued from above the loading device 60.

[0101] As shown in Figures 1 and 2, in order to unload the battery cells that have completed the glue coating process, in a specific example that can be implemented, the battery cell glue coating equipment also includes a unloading device 70. The unloading device 70 is located downstream of the glue coating device. In this example, the unloading device 70 is located downstream of the curing device 50. The unloading device 70 is configured to unload the battery cells 10 that have completed the glue coating process. Specifically, the unloading device 70 includes a conveying device and a unloading channel 71. The unloading channel 71 is configured to transport the battery cells 10 that have completed the glue coating process along the first direction X. The conveying mechanism transports the battery cells 10 that have completed the glue coating process on the conveying device 40 to the unloading channel 71 to complete the unloading of the battery cells 10.

[0102] The present invention also provides a gluing method, comprising the following steps: obtaining pattern parameters of a cell 10; and adjusting a gluing path based on the obtained pattern parameters of the cell 10 to perform gluing on the edges of the cell 10. The pattern parameters include the length of a sub-gluing path corresponding to each side edge of the cell 10, and the angle between the sub-gluing path corresponding to each side edge and a calibrated sub-gluing path.

[0103] Specifically, as shown in Figures 8 and 9, the battery cell 10 is a rectangular battery cell or a rounded rectangular battery cell. The battery cell 10 includes four sides connected in sequence by L1, L2, L3 and L4. The gluing path of the battery cell 10 coincides with the edge contour of the battery cell 10. The closed figure formed by L1a, L2a, L3a and L4a constitutes the gluing path. L1a, L2a, L3a and L4a are sub-gluing paths. The side lengths of L1, L2, L3 and L4 are the lengths of the sub-gluing paths, and the extension direction of each side is the gluing direction on the sub-gluing path. The turning angle of the gluing component (equipment) from the previous sub-gluing path to the next sub-gluing path is 90 degrees. For example, the turning angle of the L1a sub-gluing path to the L2a sub-gluing path is 90 degrees.

[0104] If the cell 10 is a special-shaped cell, it is not possible to apply glue according to the gluing path shown in Figure 9. Furthermore, the edge contour of the rectangular cell is used as the calibration gluing path, and the gluing path for applying glue to the edge of the special-shaped cell is adjusted based on the difference between the edge contours of the special-shaped cell and the rectangular cell.

[0105] Figure 10 shows a specific irregular-shaped cell, where the four sides L11, L21, L31, and L41 of the cell 10 are irregular. The irregular-shaped cell and the rectangular cell were photographed in the same environment. An edge profile image (calibration of the glue coating path) of the rectangular cell was first acquired, and then an edge profile image of the irregular-shaped cell was acquired. The edge profile images of the irregular-shaped cell and the rectangular cell were superimposed, and the difference between the edge profiles of the irregular-shaped cell and the rectangular cell was determined. As shown in Figure 11, the gluing path of the special-shaped battery cell needs to be adjusted according to the following method compared with the calibrated gluing path of the rectangular battery cell: adjust the L1a sub-gluing path to the L11a sub-gluing path, and the angle between the L1a sub-gluing path and the L11a sub-gluing path is θ1; adjust the L2a sub-gluing path to the L21a sub-gluing path, and the angle between the L2a sub-gluing path and the L21a sub-gluing path is θ2; adjust the L3a sub-gluing path to the L31a sub-gluing path, and the angle between the L3a sub-gluing path and the L31a sub-gluing path is θ3; adjust the L4a sub-gluing path to the L41a sub-gluing path, and the angle between the L4a sub-gluing path and the L4a sub-gluing path is θ4. The angle of the L41 sub-gluing path is θ4; then the turning angle of the gluing component (equipment) from the previous sub-gluing path to the next sub-gluing path is 90+θx-θy degrees, where θx is the angle between the previous sub-gluing path and the corresponding calibrated sub-gluing path, and θy is the angle between the next sub-gluing path and the corresponding calibrated sub-gluing path; for example, the turning angle of the L11a sub-gluing path to the L21a sub-gluing path is 90+θ1-θ2 degrees, the turning angle of the L21a sub-gluing path to the L31a sub-gluing path is 90+θ2-θ3 degrees, and the turning angle of the L31a sub-gluing path to the L41a sub-gluing path is 90+θ3-θ4 degrees.

[0106] FIG12 shows another specific special-shaped battery cell, in which the two long sides L21 and L41 of the battery cell 10 are special-shaped. As shown in FIG13 , the gluing path of the special-shaped battery cell is compared with the calibrated gluing path of the aforementioned rectangular battery cell: the L1a sub-gluing path is adjusted to the L11a sub-gluing path, and the angle between the L1a sub-gluing path and the L11a sub-gluing path is 0; the L2a sub-gluing path is adjusted to the L21a sub-gluing path, and the angle between the L2a sub-gluing path and the L21a sub-gluing path is θ2; the L3a sub-gluing path is adjusted to the L31a sub-gluing path, and the angle between the L3a sub-gluing path and the L31a sub-gluing path is 0; the L4a sub-gluing path is adjusted to the L41a sub-gluing path, and the L4a sub-gluing path is θ2. The angle between the L11 sub-gluing path and the L21 sub-gluing path is 90-θ2 degrees, the angle between the L21 sub-gluing path and the L31 sub-gluing path is 90+θ2 degrees, and the angle between the L31 sub-gluing path and the L41a sub-gluing path is 90-θ4 degrees.

[0107] Therefore, a gluing method for special-shaped battery cells includes the following steps: obtaining a calibrated gluing path, the calibrated gluing path includes multiple calibrated sub-gluing paths connected in sequence; obtaining the graphic parameters of the battery cell to be glued, wherein the graphic parameters include the length of the sub-gluing path corresponding to each side of the battery cell to be glued, and the angle between the sub-gluing path corresponding to each side of the battery cell to be glued and the calibrated sub-gluing path; determining the entire gluing path of the battery cell to be glued based on the obtained graphic parameters of the battery cell to be glued; and gluing the edge of the battery cell 10 along the entire gluing path of the battery cell to be glued.

[0108] Determining the entire gluing path for the cell to be glued includes determining the angle from the previous sub-gluing path to the next sub-gluing path. Preferably, the angle from the previous sub-gluing path to the next sub-gluing path is 90 + θx - θy degrees, where θx is the angle between the previous sub-gluing path and the corresponding calibration sub-gluing path, and θy is the angle between the next sub-gluing path and the corresponding calibration sub-gluing path.

[0109] Preferably, the calibration glue coating path is a closed figure formed by sequentially connecting L1a, L2a, L3a and L4a, and L1a, L2a, L3a and L4a are calibration sub-glue coating paths; the glue coating path of the battery cell to be glued is a closed figure formed by sequentially connecting L11a, L21a, L31a and L41a, the angle between the L1a sub-glue coating path and the L11a sub-glue coating path is θ1, the angle between the L2a sub-glue coating path and the L21a sub-glue coating path is θ2, and the angle between the L3a sub-glue coating path and the L31a sub-glue coating path is θ3. The angle between the sub-gluing paths is θ3, and the angle between the L4a sub-gluing path and the L41a sub-gluing path is θ4. Then the turning angle of the L11a sub-gluing path turning to the L21a sub-gluing path is 90+θ1-θ2 degrees, the turning angle of the L21a sub-gluing path turning to the L31a sub-gluing path is 90+θ2-θ3 degrees, the turning angle of the L31a sub-gluing path turning to the L41a sub-gluing path is 90+θ3-θ4 degrees, and the turning angle of the L41a sub-gluing path turning to the L11a sub-gluing path is 90+θ4-θ1 degrees.

[0110] In a modified embodiment, an improvement is made for the situation where the two long sides L21 and L41 of the battery cell 10 to be glued appear irregular. The calibrated glue path is a closed figure formed by sequentially connecting L1a, L2a, L3a and L4a, and L1a, L2a, L3a and L4a are calibrated sub-glue paths. A glue coating component is used to glue each side of the battery cell 10 to be glued. As shown in Figure 14, glue is applied to the L11 side along the L11a sub-glue path, and glue is applied to the L31 side along the L31a sub-glue path; after the glue is applied to the L11 side and the L31 side, the battery cell 10 to be glued is rotated so that one of the two irregular sides is parallel or collinear with the corresponding calibrated sub-glue path, so as to obtain the L22a and L42a sub-glue paths, and glue is applied along the L22a and L42a sub-glue paths. Specifically, as shown in Figure 15, after the L11 side and the L31 side are glued, the battery cell 10 to be glued is rotated so that the L41 side and the L4a sub-glueing path (calibration sub-glueing path) are parallel or collinear, so as to obtain the L22a and L42a sub-glueing paths, and glue is applied along the L22a and L42a sub-glueing paths. In this method, the battery cell 10 to be glued is rotated so that the L41 side and the L4a sub-glueing path are parallel or collinear, and the glue application component for gluing the L41 side can always move in the preset direction (the extension direction of the calibration sub-glueing path L4a) to apply glue without changing the angle and direction, which can reduce the freedom of movement of the glue application component and improve the stability of the glue application. Among them, the angle between the L22a sub-glueing path and the L2a sub-glueing path (calibration sub-glueing path) is θ5 = θ2-θ4 or θ5 = θ2+θ4.

[0111] In another variant embodiment, an improvement is made for situations where the two long sides L21 and L41 of the cell 10 to be glued are irregularly shaped, where side L21 is non-linear, such as a zigzag or wavy shape. To obtain the sub-glue path corresponding to side L21, as shown in Figure 16, the two endpoints of side L21 can be connected to form sub-glue path L23a; alternatively, the coordinate parameters of multiple points on side L21 can be obtained and linear fitting can be performed on these points to form the fitted line as sub-glue path L23a. Furthermore, the angle θ2 between sub-glue path L23a and sub-glue path L2a is obtained.

[0112] It should be noted that the cell 10 mentioned in the present application is a semi-finished product. After the edges of the cell 10 are coated with glue, the edges of the cell 10 will not be electroplated during the subsequent electroplating process to prepare the grid lines.

[0113] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A battery cell gluing device, characterized in that: The battery cell gluing equipment includes: A visual positioning device, wherein the visual positioning device is correspondingly provided with a visual positioning station, and the visual positioning device is configured to obtain graphic parameters of the battery cell located at the visual positioning station; A gluing device, located downstream of the visual positioning device, is provided with a corresponding gluing station. In a working state, the gluing device is configured to perform gluing on the battery cell according to the acquired graphic parameters of the battery cell; A conveying device is configured to convey the battery cell from the visual positioning station to the gluing station.

2. The battery cell gluing equipment according to claim 1, characterized in that: The visual positioning device comprises: Fixed seat support frame; A camera fixing seat, the camera fixing seat being movably arranged on the fixing seat support frame in an up-down direction; a camera fixing member, the camera fixing member being movably disposed on the camera fixing seat along a first direction; A camera group, wherein the camera group includes a plurality of cameras, wherein the cameras are movably arranged on the camera fixing member along the second direction, and the cameras are configured to photograph and position the battery cell to obtain graphic parameters of the battery cell, wherein the first direction, the second direction and the up and down directions are perpendicular to each other, and the first direction and the second direction extend in the horizontal direction respectively.

3. The battery cell gluing equipment according to claim 2, characterized in that: The camera group includes a central camera and two groups of edge cameras, the central camera is located in the middle area of the camera fixing seat, and the two groups of edge cameras are respectively located on both sides of the camera fixing seat, wherein the central camera and the edge cameras can both move along the second direction relative to the camera fixing member.

4. The battery cell gluing equipment according to claim 3, characterized in that: The camera fixing member includes a central camera fixing member and two edge camera fixing members, the central camera fixing member is arranged in the middle area of the camera fixing seat, and the two edge camera fixing members are arranged on the opposite side parts of the camera fixing seat, the central camera fixing member and the two edge camera fixing members can be movably arranged on the camera fixing seat along the first direction, wherein the central camera is movably connected to the central camera fixing member, and the edge camera is movably connected to the edge camera fixing member.

5. The battery cell gluing equipment according to claim 2, characterized in that: The gluing device comprises: A gluing assembly, comprising a gluing support and a gluing wheel disposed on the gluing support, wherein the gluing assembly is configured to perform gluing on the battery cell; A lifting module, the gluing assembly is arranged on the lifting module, and the lifting module is configured to drive the gluing assembly to move along the up and down direction; Plane module, the lifting module is arranged on the planar module, the planar module includes a first direction linear module, a second direction linear module and a fixed seat, the first direction linear module is arranged on the second direction linear module, the second direction linear module is arranged on the fixed seat, in the working state, the planar module is configured to drive the gluing component to move along the first direction and / or the second direction.

6. The battery cell gluing equipment according to claim 1, characterized in that: The gluing device comprises: A first sub-glue coating device, wherein the first sub-glue coating device is correspondingly provided with a first sub-glue coating station, and the first sub-glue coating device is configured to perform glue coating on the relatively long sides of the battery cell; A second sub-glue coating device, wherein the second sub-glue coating device is correspondingly provided with a second sub-glue coating station, and the second sub-glue coating device is configured to perform glue coating on the relatively short side edges of the battery cell; The third sub-glue coating device is correspondingly provided with a third sub-glue coating station, and the third sub-glue coating device is configured to perform glue coating on the chamfers of the battery cell.

7. The battery cell gluing equipment according to claim 1, characterized in that: The transmission device comprises: A transport carrier, the transport carrier is configured to carry a battery cell, the transport carrier is provided with a plurality of adsorption holes, the plurality of adsorption holes are interconnected, the adsorption holes are also connected to a vacuum generator, and the vacuum generator is configured to adsorb the battery cell through the adsorption holes; A first rotating device is located below the transmission platform, and is configured to drive the transmission platform to rotate around a center line extending in an up-down direction.

8. The battery cell gluing equipment according to claim 7, characterized in that: The transmission device further includes: A rotating platform device, the rotating platform device includes M processing tables, and M processing stations are arranged along the circumference of the rotating platform device, one processing table corresponds to one processing station, the processing table is configured to rotate and transfer the battery cells to each processing station, the processing stations at least include a loading station, the visual positioning station and an unloading station in sequence, a second rotating device is provided on the processing table, and the second rotating device is configured to drive the processing table to rotate around a rotation axis extending in the up and down directions, wherein M≥3, and M is an integer.

9. The battery cell gluing equipment according to claim 1, characterized in that: The battery cell gluing equipment further includes a loading device, which is located upstream of the visual positioning device and is configured to transfer the battery cell to be gluing to the visual positioning station.

10. The battery cell gluing equipment according to claim 1, characterized in that: The battery cell gluing equipment further includes a material unloading device, which is located downstream of the gluing device and is configured to unload the battery cells that have completed the gluing process.

11. The cell gluing equipment according to claim 1, characterized in that: The battery cell gluing device further includes a curing device, which is located downstream of the gluing device and is configured to perform a curing process on the battery cell after the gluing process.

12. The cell gluing equipment according to claim 1, characterized in that: The battery cell gluing equipment further includes a machine platform, which is configured to carry various devices on the battery cell gluing equipment.

13. A method for coating a battery cell, characterized in that: The following steps are involved: S1. Obtain a calibrated gluing path, where the calibrated gluing path includes a plurality of calibrated sub-gluing paths connected in sequence; S2. Obtaining graphic parameters of the battery cell to be glued, wherein the graphic parameters include the length of the sub-glueing path corresponding to each side of the battery cell to be glued, and the angle between the sub-glueing path corresponding to each side of the battery cell to be glued and the calibration sub-glueing path; S3, determining the entire gluing path of the battery cell to be glued according to the acquired graphic parameters of the battery cell to be glued; S4, applying glue to the edges of the battery cell along the entire glue application path of the battery cell to be glued.

14. The battery cell gluing method according to claim 13, characterized in that: In step S3, the entire gluing path of the battery cell to be glued is determined, including determining the turning angle from the previous sub-gluing path to the next sub-gluing path.

15. The battery cell gluing method according to claim 14, characterized in that: If the turning angle from the previous calibrated sub-gluing path to the next calibrated sub-gluing path is 90 degrees, then the turning angle from the previous sub-gluing path to the next sub-gluing path is 90+θx-θy degrees, where θx is the angle between the previous sub-gluing path and the corresponding calibrated sub-gluing path, and θy is the angle between the next sub-gluing path and the corresponding calibrated sub-gluing path.

16. The battery cell gluing method according to claim 14, characterized in that: The calibration gluing path is obtained according to the edge contours of the four sides of the rectangular battery cell. The calibration gluing path is a closed figure formed by sequentially connecting L1a, L2a, L3a and L4a. L1a, L2a, L3a and L4a are calibration sub-gluing paths. The rectangular battery cell includes four sides L1, L2, L3 and L4 connected in sequence. The edge contours of the four sides L1, L2, L3 and L4 correspond to the calibration sub-gluing paths L1a, L2a, L3a and L4a.

17. The battery cell gluing method according to claim 16, characterized in that: The battery cell to be glued includes four sides L11, L21, L31 and L41 connected in sequence. The gluing path of the battery cell to be glued is a closed figure formed by sequentially connecting L11a, L21a, L31a and L41a. L11a, L21a, L31a and L41a are sub-glueing paths corresponding to each side, wherein the angle between the L1a sub-glueing path and the L11a sub-glueing path is θ1, the angle between the L2a sub-glueing path and the L21a sub-glueing path is θ2, the angle between the L3a sub-glueing path and the L31a sub-glueing path is θ3, and the angle between the L4a sub-glueing path and the L41a sub-glueing path is θ4.

18. The battery cell gluing method according to claim 17, characterized in that: When applying glue, the turning angle from the L11a sub-glue applying path to the L21a sub-glue applying path is 90+θ1-θ2 degrees, the turning angle from the L21a sub-glue applying path to the L31a sub-glue applying path is 90+θ2-θ3 degrees, the turning angle from the L31a sub-glue applying path to the L41a sub-glue applying path is 90+θ3-θ4 degrees, and the turning angle from the L41a sub-glue applying path to the L11a sub-glue applying path is 90+θ4-θ1 degrees.

19. The battery cell gluing method according to claim 17, characterized in that: When the angle θ1 and the angle θ3 are both 0 degrees, and the angle θ2 and the angle θ4 are both greater than 0 degrees, Glue the L11 side along the L11a sub-glueing path, and glue the L31 side along the L31a sub-glueing path; after gluing is completed on the L11 side and the L31 side, rotate the battery cell to be glued so that one of the L21 side and the L41 side is parallel or collinear with the corresponding calibration sub-glueing path to obtain the L22a and L42a sub-glueing paths, and then glue is applied along the L22a and L42a sub-glueing paths.

20. The battery cell gluing method according to claim 19, characterized in that: After the glue coating is completed on the L11 side and the L31 side, the battery cell to be glued is rotated so that the L41 side and the L4a calibration sub-glue coating path are parallel or collinear to obtain the L22a and L42a sub-glue coating paths, and glue is applied along the L22a and L42a sub-glue coating paths.

21. The battery cell gluing method according to claim 20, characterized in that: The angle between the L22a sub-gluing path and the L2a calibration sub-gluing path is θ5 = θ2 - θ4 or θ5 = θ2 + θ4.

22. [Corrected 03.03.2025 according to Rule 26] A method for coating a cell according to any one of claims 13 to 21, characterized in that: When the side of the battery cell to be glued is non-straight, the two endpoints of the edge contour of the side are obtained to form a sub-glueing path; or, the coordinate parameters of multiple points on the edge contour of the side are obtained, and linear fitting is performed on the multiple points, and the fitted straight line is used as the sub-glueing path corresponding to the side.

23. [Corrected 03.03.2025 according to Rule 26] The method for coating a battery cell according to claim 13, characterized in that: In step S1, a rectangular cell as a calibration object is photographed to obtain an edge contour image of the rectangular cell; Step S2: take a picture of the battery cell to be glued to obtain an edge contour image of the battery cell to be glued; The edge contour image of the rectangular battery cell and the edge contour image of the battery cell to be glued are obtained by photographing in the same environment.

24. The battery cell gluing method according to claim 23, characterized in that: The edge contour image of the rectangular battery cell and the edge contour image of the battery cell to be glued are obtained through a visual positioning device, and the obtained edge contour image of the rectangular battery cell and the edge contour image of the battery cell to be glued are overlapped to obtain the difference between the contour edge of the battery cell to be glued and the contour edge of the rectangular battery cell, and then the gluing path for gluing the edge of the battery cell to be glued is adjusted according to the difference.

25. The battery cell gluing method according to any one of claims 13 to 24, characterized in that: The gluing method is implemented based on the cell gluing equipment according to any one of claims 1 to 12.

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