An electrode tab taping device and method thereof, and a battery device production system

Abstract

Some embodiments of the present application provide an electrode tab taping device and method thereof, and a battery device production system. The taping assembly of the electrode tab taping device includes a suction plate, a driver, and a scraping structure. The scraping structure is movably connected to the suction plate along a third direction. The scraping structure is in driving connection with the driver. The suction plate is used to adsorb a tape and attach the tape to a first electrode tab and a second electrode tab. The tape covers a gap between the first electrode tab and the second electrode tab. After the suction plate attaches the tape to the first electrode tab and the second electrode tab, the scraping structure can move along the third direction and scrape the tape from a side of the tape close to the suction plate. The scraping structure can sequentially scrape both ends of the tape along the third direction. This not only allows the tape to be scraped flat, but also squeezes out air bubbles between the tape and the first electrode tab or the second electrode tab. This reduces the risk of the tape wrinkling and the risk of the electrode tab wrinkling, thereby improving the reliability of the battery device.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to an electrode bonding device and method, and a battery manufacturing system. Background Technology

[0002] Battery devices have advantages such as high specific energy and high power density, and are widely used in electronic devices and transportation vehicles, such as mobile phones, laptops, electric vehicles, electric cars, electric airplanes, electric ships and power tools.

[0003] As the application scope of battery devices continues to expand, the requirements for their reliability are also increasing. How to improve the reliability of battery devices is receiving increasing attention from those skilled in the art. Summary of the Invention

[0004] In view of the above problems, this application provides an electrode bonding apparatus and method, and a battery device production system. The electrode bonding apparatus helps to reduce the risk of electrode wrinkling and improves the reliability of the battery device.

[0005] In a first aspect, some embodiments of this application provide an electrode adhesive application device for connecting a first electrode and a second electrode spaced apart along a first direction. The electrode adhesive application device includes a clamping assembly and an adhesive application assembly. The clamping assembly includes two first clamping mechanisms and two second clamping mechanisms arranged opposite each other along a second direction. The two first clamping mechanisms can clamp the first electrode from both sides of the second direction, and the two second clamping mechanisms can clamp the second electrode from both sides of the second direction. The adhesive application assembly includes an adsorption plate, a driver, and a scraping structure. The scraping structure is movably connected to the adsorption plate along a third direction and is driven by the driver. The adsorption plate is used to adsorb adhesive tape and attach the tape to the first electrode and the second electrode, with the tape covering the gap between the first electrode and the second electrode. Driven by the driver, the scraping structure can move along a third direction and scrape the tape across the side of the tape near the adsorption plate. The first direction, the second direction, and the third direction are perpendicular to each other.

[0006] In the above structure, since a flattening structure is movably connected to the adsorption plate for adsorbing the tape along a third direction, after the adsorption plate attaches the tape to the first and second electrodes, the flattening structure can move along a third direction and scrape the tape from the side of the tape closest to the adsorption plate. This allows the flattening structure to scrape the two ends of the tape sequentially along a third direction, which not only flattens the tape but also squeezes out air bubbles between the tape and the first or second electrode, reducing the risk of the tape wrinkling on the first or second electrode, thereby reducing the risk of electrode wrinkling and improving the reliability of the battery device.

[0007] According to some embodiments of this application, the electrode adhesive applicator has two scraping structures arranged opposite to each other along a first direction on the adsorption plate. One of the two scraping structures is used to scrape over the portion of the adhesive tape attached to the first electrode, and the other is used to scrape over the portion of the adhesive tape attached to the second electrode.

[0008] According to some embodiments of the present application, the electrode adhesive applicator has an inwardly recessed groove on the surface of the adhesive tape adsorbed by the adsorption plate. The groove extends along a third direction, and at least a portion of the flattening structure is disposed in the groove.

[0009] According to some embodiments of the present application, the electrode adhesive applicator has a flattening structure housed in a groove, with the end of the flattening structure near the adhesive tape flush with the surface of the adhesive tape adsorbed by the adsorption plate; or, the end of the flattening structure near the adhesive tape protrudes out of the groove.

[0010] According to some embodiments of this application, the electrode adhesive applicator includes a flattening structure comprising a connecting portion and a flattening portion connected to each other. The connecting portion is located in a groove and is slidably connected to the inner wall of the groove. The end of the flattening portion near the adhesive tape protrudes out of the groove. The flattening portion is configured as an elastic element.

[0011] According to some embodiments of this application, the electrode adhesive applicator has a flattening section configured as a roller, and the central axis of the roller is arranged along a first direction.

[0012] According to some embodiments of this application, the electrode adhesive applicator has an adsorption plate with adsorption holes, the openings of which are located on the surface of the adsorption plate adsorbing the adhesive tape; the adhesive applicator also includes a negative pressure air source connected to the adsorption holes.

[0013] According to some embodiments of this application, the electrode bonding device further includes an image acquisition unit and a control unit. The image acquisition unit is used to acquire images at the gap. The control unit is communicatively connected to the image acquisition unit, the first clamping mechanism, and the second clamping mechanism. The control unit can control the first clamping mechanism and the second clamping mechanism to adjust the relative positions of the first electrode and the second electrode according to the image.

[0014] According to some embodiments of this application, the electrode bonding apparatus further includes a support assembly. The support assembly includes two third clamping mechanisms and two fourth clamping mechanisms arranged opposite each other along a second direction. The third clamping mechanisms are spaced apart from the first clamping mechanism, and the two third clamping mechanisms can clamp the first electrode from both sides of the second direction. The fourth clamping mechanisms are spaced apart from the second clamping mechanism, and the two fourth clamping mechanisms can clamp the second electrode from both sides of the second direction.

[0015] Secondly, some embodiments of this application provide a battery device manufacturing system, which includes the electrode bonding device provided by any of the above-described technical solutions.

[0016] Thirdly, some embodiments of this application provide an electrode bonding method for connecting a first electrode and a second electrode spaced apart along a first direction. The electrode bonding method includes:

[0017] A clamping assembly is provided, comprising two first clamping mechanisms and two second clamping mechanisms arranged opposite each other along a second direction; the two first clamping mechanisms clamp a first electrode from both sides of the second direction, and the two second clamping mechanisms clamp a second electrode from both sides of the second direction.

[0018] An adhesive application assembly is provided, which includes an adsorption plate, a driver, and a scraping structure. The scraping structure is movably connected to the adsorption plate along a third direction and is drivenly connected to the driver. The adsorption plate adsorbs the adhesive tape and applies the tape to the first electrode and the second electrode, and the tape covers the gap between the first electrode and the second electrode.

[0019] The driver moves the scraping structure along a third direction so that the scraping structure scrapes across the tape from the side of the tape closest to the adsorption plate along the third direction, with the first direction, the second direction and the third direction being perpendicular to each other.

[0020] According to some embodiments of this application, the electrode adhesive application method further includes, before providing an adhesive application assembly comprising an adsorption plate, a driver, and a smoothing structure, wherein the smoothing structure is movably connected to the adsorption plate along a third direction and is drivenly connected to the driver; and before the adsorption plate adsorbs the adhesive tape and applies the tape to the first electrode and the second electrode, and the tape covers the gap between the first electrode and the second electrode, the electrode adhesive application method further includes:

[0021] An image acquisition unit and a control unit are provided. The control unit is communicatively connected to the image acquisition unit, the first clamping mechanism, and the second clamping mechanism. The image acquisition unit acquires images at the gap, and the control unit controls the first clamping mechanism and the second clamping mechanism to adjust the relative positions of the first electrode and the second electrode according to the images, so that the first electrode and the second electrode are aligned.

[0022] According to some embodiments of this application, the electrode adhesive application method includes an adsorption plate with adsorption holes, the openings of which are located on the surface of the adhesive tape adsorbed by the adsorption plate; the adhesive application assembly further includes a negative pressure air source connected to the adsorption holes; while the driver drives the scraping structure to move along a third direction, so that the scraping structure scrapes the adhesive tape from the side of the tape close to the adsorption plate along the third direction, the electrode adhesive application method further includes:

[0023] The negative pressure air source maintains air intake at the location where the adhesive tape is attached through the adsorption holes.

[0024] The technical solutions provided by the embodiments disclosed in this application have at least the following beneficial effects:

[0025] Some embodiments of this application provide an electrode adhesive application device, which includes a clamping assembly and an adhesive application assembly. The clamping assembly includes two first clamping mechanisms and two second clamping mechanisms arranged opposite each other along a second direction. The two first clamping mechanisms can clamp a first electrode from both sides of the second direction, and the two second clamping mechanisms can clamp a second electrode from both sides of the second direction. The adhesive application assembly includes an adsorption plate, a driver, and a scraping structure. The scraping structure is movably connected to the adsorption plate along a third direction and is driven by the driver. The adsorption plate is used to adsorb adhesive tape and attach the tape to the first and second electrodes, with the tape covering the gap between the first and second electrodes. Driven by the driver, the scraping structure can move along a third direction and scrape the tape across the side of the tape near the adsorption plate. The first, second, and third directions are perpendicular to each other.

[0026] In the above structure, since a flattening structure is movably connected to the adsorption plate for adsorbing the tape along a third direction, after the adsorption plate attaches the tape to the first and second electrodes, the flattening structure can move along a third direction and scrape the tape from the side of the tape closest to the adsorption plate. This allows the flattening structure to scrape the two ends of the tape sequentially along a third direction, which not only flattens the tape but also squeezes out air bubbles between the tape and the first or second electrode, reducing the risk of the tape wrinkling on the first or second electrode, thereby reducing the risk of electrode wrinkling and improving the reliability of the battery device.

[0027] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0028] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0029] Figure 1 This is a partial structural schematic diagram of the electrode bonding device provided in some embodiments of this application;

[0030] Figure 2 This is a front view of the adsorption plate in the electrode adhesive application device provided in some embodiments of this application;

[0031] Figure 3 for Figure 2 Sectional view at point AA;

[0032] Figure 4 This is a flowchart illustrating the electrode bonding method provided in some embodiments of this application.

[0033] In the attached diagram:

[0034] 1. Clamping assembly; 11. First clamping mechanism; 12. Second clamping mechanism;

[0035] 2. Adhesive application assembly; 21. Adsorption plate; 211. Groove; 212. Adsorption hole; 23. Scraping structure; 231. Connecting part; 232. Scraping part;

[0036] 5. Support assembly; 51. Third clamping mechanism; 52. Fourth clamping mechanism;

[0037] 10. First electrode; 20. Second electrode; 30. Gap;

[0038] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0039] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0040] It should be noted that, unless otherwise stated, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by those skilled in the art to which the embodiments of this application pertain.

[0041] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0042] Furthermore, technical terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise explicitly defined.

[0043] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0044] In the description of the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] Currently, judging from market trends, the application of battery devices is becoming increasingly widespread. Battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely applied in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, energy storage containers or cabinets, and in aerospace and other fields.

[0046] The battery device mentioned in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity. In the embodiments of this application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged after discharge to activate the active materials and continue to be used.

[0047] Battery cells can be lithium-ion cells, sodium-ion cells, sodium-lithium-ion cells, lithium metal cells, sodium metal cells, lithium-sulfur cells, magnesium-ion cells, nickel-metal hydride cells, nickel-cadmium cells, lead-acid cells, etc.

[0048] A battery cell typically includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charging and discharging process of the battery cell, active ions (such as lithium ions) repeatedly insert and extract between the positive and negative electrodes. The separator, positioned between the positive and negative electrodes, prevents short circuits while allowing active ions to pass through. For example, the electrode assembly includes a positive electrode, a negative electrode, and a separator stacked together.

[0049] In some embodiments, the electrode assembly may be a wound structure.

[0050] Currently, continuous winding processes are commonly used for electrode assemblies with a wound structure. This involves applying adhesive tape to the beginning and end of the electrode sheets to connect adjacent sheets and enable continuous winding. However, in some cases, defects such as tape wrinkling and air bubbles remaining between the tape and the electrode sheet can occur during tape application. This not only reduces the quality of the tape application but also increases the likelihood of electrode wrinkling, threatening the reliability of the battery device.

[0051] To reduce the risk of electrode wrinkling and improve the reliability of the battery device, some embodiments of this application provide an electrode adhesive application device. This device includes a clamping assembly and an adhesive application assembly. The clamping assembly includes two first clamping mechanisms and two second clamping mechanisms arranged opposite each other along a second direction. The two first clamping mechanisms can clamp a first electrode from both sides of the second direction, and the two second clamping mechanisms can clamp a second electrode from both sides of the second direction. The adhesive application assembly includes an adsorption plate, a driver, and a scraping structure. The scraping structure is movably connected to the adsorption plate along a third direction and is drively connected to the driver. The adsorption plate adsorbs adhesive tape and applies it to the first and second electrodes, covering the gap between them. Driven by the driver, the scraping structure can move along a third direction and scrape the tape across the side of the tape closest to the adsorption plate. The first, second, and third directions are perpendicular to each other.

[0052] In the above structure, since a flattening structure is movably connected to the adsorption plate for adsorbing the tape along a third direction, after the adsorption plate attaches the tape to the first and second electrodes, the flattening structure can move along a third direction and scrape the tape from the side of the tape closest to the adsorption plate. This allows the flattening structure to scrape the two ends of the tape sequentially along a third direction, which not only flattens the tape but also squeezes out air bubbles between the tape and the first or second electrode, reducing the risk of the tape wrinkling on the first or second electrode, thereby reducing the risk of electrode wrinkling and improving the reliability of the battery device.

[0053] The electrode bonding device provided in this application embodiment can be applied to the winding and forming of electrode assemblies. The manufactured electrode assemblies can be used to produce battery devices, which can be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, etc. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc.

[0054] The electrode adhesive applicator provided in this application embodiment can also be used to apply adhesive tape to two sheets to connect the two sheets. This electrode adhesive applicator can improve the quality of applying adhesive tape to the sheets.

[0055] The electrode bonding apparatus and method, and battery production system provided in this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0056] Some embodiments of this application provide an electrode bonding device, see reference. Figure 1 The electrode application device includes a clamping assembly 1 and an application assembly 2. The clamping assembly 1 includes two first clamping mechanisms 11 and two second clamping mechanisms 12 arranged opposite each other along the second direction Y. The two first clamping mechanisms 11 can clamp the first electrode 10 from both sides of the second direction Y, and the two second clamping mechanisms 12 can clamp the second electrode 20 from both sides of the second direction Y. The application assembly 2 includes an adsorption plate 21, a driver, and a scraping structure 23. The scraping structure 23 is movably connected to the adsorption plate 21 along the third direction Z. The scraping structure 23 is driven by the driver. The adsorption plate 21 is used to adsorb the adhesive tape and apply the adhesive tape to the first electrode 10 and the second electrode 20. The adhesive tape covers the gap 30 between the first electrode 10 and the second electrode 20. Driven by the driver, the scraping structure 23 can move along the third direction Z and scrape the adhesive tape from the side of the adhesive tape close to the adsorption plate 21. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0057] The electrode adhesive applicator is used to apply adhesive tape to the first electrode 10 and the second electrode 20, which are spaced apart along the first direction X, so as to connect the first electrode 10 and the second electrode 20. The tape is bonded to the first electrode 10 and the second electrode 20 and covers the gap 30 between the first electrode 10 and the second electrode 20.

[0058] The clamping assembly 1 may be a plurality of components for clamping the first electrode 10 and the second electrode 20. By clamping the first electrode 10 and the second electrode 20, the first electrode 10 and the second electrode 20 are fixed so that adhesive tape can be applied to the first electrode 10 and the second electrode 20 in the future.

[0059] The first clamping mechanism 11 can be a mechanism for clamping the first electrode 10, thereby fixing the first electrode 10 by clamping it. The second clamping mechanism 12 can be a mechanism for clamping the second electrode 20, thereby fixing the second electrode 20 by clamping it.

[0060] By arranging two first clamping mechanisms 11 at a relative interval along the second direction Y, the two first clamping mechanisms 11 can clamp the first electrode 10 from both sides of the second direction Y by bringing them closer together. By arranging two second clamping mechanisms 12 at a relative interval along the second direction Y, the two second clamping mechanisms 12 can clamp the second electrode 20 from both sides of the second direction Y by bringing them closer together.

[0061] For example, the first clamping mechanism 11 and the second clamping mechanism 12 are arranged at a distance from each other in the first direction X, and the gap 30 between the first pole piece 10 and the second pole piece 20 is located between the first clamping mechanism 11 and the second clamping mechanism 12.

[0062] The first clamping mechanism 11 clamps the first electrode 10. When the two first clamping mechanisms 11 clamp the first electrode 10 from both sides of the second direction Y, a portion of the first electrode 10 can extend out between the two first clamping mechanisms 11, and adhesive tape can be attached to the portion of the first electrode 10 extending out between the two first clamping mechanisms 11. The second clamping mechanism 12 clamps the second electrode 20. When the two second clamping mechanisms 12 clamp the second electrode 20 from both sides of the second direction Y, a portion of the second electrode 20 can extend out between the two second clamping mechanisms 12, and adhesive tape can be attached to the portion of the second electrode 20 extending out between the two second clamping mechanisms 12. A gap 30 is formed between the portion of the first electrode 10 extending out between the two first clamping mechanisms 11 and the portion of the second electrode 20 extending out between the two second clamping mechanisms 12 in the first direction X.

[0063] The adhesive application assembly 2 can be an assembly for applying tape to the first electrode 10 and the second electrode 20. The applied tape can connect the first electrode 10 and the second electrode 20 and cover the gap 30 between the first electrode 10 and the second electrode 20.

[0064] The adsorption plate 21 can be used in the adhesive application assembly 2 to carry and transfer the adhesive tape, so as to attach the adhesive tape to the surface of the first electrode 10 and the surface of the second electrode 20, and cover the gap 30 between the first electrode 10 and the second electrode 20, so that the adhesive tape can connect the first electrode 10 and the second electrode 20.

[0065] For example, the adsorption plate 21 can be a plate-shaped device with electrostatic adsorption capability, which can stably adsorb the tape onto the surface facing the electrode; the adsorption plate 21 can also be provided with adsorption holes 212, through which the adsorption plate 21 can stably adsorb the tape onto the surface facing the electrode.

[0066] The smoothing structure 23 can be a structure in the adhesive application assembly 2 used to smooth the adhesive tape attached to the electrode sheet, which can improve the adhesion effect of the tape on the electrode sheet. The smoothing structure 23 is movably connected to the adsorption plate 21 in the third direction Z. This means that the smoothing structure 23 is connected to the adsorption plate 21 and can move in the third direction Z to smooth the tape by moving. Exemplarily, the smoothing structure 23 can be configured as a scraper structure or a roller structure. Those skilled in the art can choose the structural style of the smoothing structure 23 according to the actual situation, as long as the smoothing structure 23 can smooth the adhesive tape attached to the electrode sheet.

[0067] The actuator can be a device that powers the movement of the leveling structure 23 in a third direction (Z). By connecting the leveling structure 23 to the actuator, the leveling structure 23 can move in the third direction (Z) under the drive of the actuator. For example, the actuator can be a linear motor or a hydraulic cylinder, enabling the actuator to move the leveling structure 23 in the third direction (Z).

[0068] After the adsorption plate 21 attaches the tape to the first electrode 10 and the second electrode 20, the driver is activated. The scraping structure 23 moves along the third direction Z under the drive of the driver and scrapes across the tape from the side closest to the adsorption plate 21. This allows the scraping structure 23 to scrape across both ends of the tape sequentially along the third direction Z, which not only flattens the tape but also squeezes out air bubbles between the tape and the first electrode 10 or the second electrode 20.

[0069] By making the first direction X, the second direction Y, and the third direction Z perpendicular to each other, the two first clamping mechanisms 11 can clamp the first electrode 10 from a direction perpendicular to the setting direction of the first electrode 10 and the second electrode 20, and the two second clamping mechanisms 12 can clamp the second electrode 20 from a direction perpendicular to the setting direction of the first electrode 10 and the second electrode 20, and the scraping structure 23 can scrape the tape along a direction perpendicular to the setting direction of the first electrode 10 and the second electrode 20 and the clamping direction of the clamping assembly 1 on the electrode.

[0070] In the above structure, since the adsorption plate 21 used for adsorbing the tape is movably connected to the flattening structure 23 along the third direction Z, after the adsorption plate 21 attaches the tape to the first electrode 10 and the second electrode 20, the flattening structure 23 can move along the third direction Z and scrape the tape from the side of the tape close to the adsorption plate 21. This allows the flattening structure 23 to scrape the two ends of the tape sequentially along the third direction Z, which not only flattens the tape but also squeezes out air bubbles between the tape and the first electrode 10 or the second electrode 20, reducing the risk of the tape wrinkling on the first electrode 10 or the second electrode 20, thereby reducing the risk of electrode wrinkling and improving the reliability of the battery device.

[0071] In some embodiments, the adsorption plate 21 is provided with two scraping structures 23 arranged opposite to each other along the first direction X. One of the two scraping structures 23 is used to scrape over the portion of the tape attached to the first electrode 10, and the other is used to scrape over the portion of the tape attached to the second electrode 20.

[0072] The adsorption plate 21 is provided with two scraping structures 23 arranged opposite to each other along the first direction X. This means that the adsorption plate 21 is provided with two scraping structures 23, and the two scraping structures 23 are arranged at intervals opposite to each other along the first direction X.

[0073] One of the two scraping structures 23, driven by the driver, can move along the third direction Z and scrape over the portion of the tape attached to the first electrode 10 so that the tape can be flatly attached to the first electrode 10; the other, driven by the driver, can move along the third direction Z and scrape over the portion of the tape attached to the second electrode 20 so that the tape can be flatly attached to the second electrode 20.

[0074] For example, two scraping structures 23 provided on the adsorption plate 21 are arranged at intervals relative to each other along the first direction X. One scraping structure 23 is arranged in the second direction Y and is directly opposite to the portion of the tape attached to the first electrode 10. The other scraping structure 23 is arranged in the second direction Y and is directly opposite to the portion of the tape attached to the second electrode 20. The gap between the two scraping structures 23 and the gap 30 between the first electrode 10 and the second electrode 20 are directly opposite to each other along the second direction Y.

[0075] In some embodiments, reference Figure 2 The surface of the adsorption plate 21 adsorbs the tape and has an inwardly recessed groove 211. The groove 211 extends along the third direction Z, and at least a portion of the flattening structure 23 is disposed in the groove 211.

[0076] The groove 211 can be a structure provided on the adsorption plate 21 to accommodate the leveling structure 23. At least a portion of the leveling structure 23 is disposed in the groove 211. This can be that a portion of the leveling structure 23 is disposed in the groove 211, while another portion extends out of the groove 211; or the entire leveling structure 23 can be disposed in the groove 211. By disposing at least a portion of the leveling structure 23 in the groove 211, the protrusion of the leveling structure 23 on the adsorption plate 21 can be reduced, which helps to keep the tape on the adsorption plate 21 flat, thereby improving the adhesion quality of the tape on the first electrode 10 and the second electrode 20.

[0077] By extending the groove 211 along the third direction Z, the scraping structure 23, which is at least partially disposed in the groove 211, can move along the third direction Z within the groove 211.

[0078] For example, material can be removed from the surface of the adhesive tape adsorbed by the adsorption plate 21 by machining methods such as milling, so that the surface of the adsorption plate 21 adsorbs the adhesive tape and forms a groove 211.

[0079] In some embodiments, the scraping structure 23 is accommodated in the groove 211, and the end of the scraping structure 23 near the tape is flush with the surface of the adsorption plate 21 adsorbing the tape; or, the end of the scraping structure 23 near the tape protrudes out of the groove 211.

[0080] The leveling structure 23 is accommodated in the groove 211, meaning that the entire leveling structure 23 is completely accommodated in the groove 211. The end of the leveling structure 23 near the tape is flush with the surface of the adsorption plate 21 adsorbing the tape, meaning that when the entire leveling structure 23 is completely accommodated in the groove 211, the end of the leveling structure 23 near the tape is located in the plane of the adsorption plate 21 adsorbing the tape. This not only allows the end of the leveling structure 23 near the tape to push the tape onto the electrode together with the surface of the adsorption plate 21 adsorbing the tape when the adsorption plate 21 adsorbs the tape and attaches the tape to the electrode, but also allows the leveling structure 23 to maintain contact with the tape when moving in the third direction Z, to scrape across the surface of the tape near the adsorption plate 21, to level the tape, and to squeeze out air bubbles between the tape and the electrode.

[0081] The end of the flattening structure 23 near the tape protrudes outside the groove 211. Specifically, the end of the flattening structure 23 near the tape protrudes outward from the opening of the groove 211, while the rest of the flattening structure 23 is located within the groove 211. By making the end of the flattening structure 23 near the tape protrude outside the groove 211, not only can the end of the flattening structure 23 near the tape push the tape onto the electrode together with the surface of the adsorption plate 21 adsorbing the tape when the adsorption plate 21 adsorbs the tape and attaches it to the electrode, but also when the flattening structure 23 moves along the third direction Z, it can effectively maintain contact with the tape, flatten the tape, and squeeze out air bubbles between the tape and the electrode.

[0082] In some embodiments, reference Figure 3 The scraping structure 23 includes a connecting part 231 and a scraping part 232 that are connected to each other. The connecting part 231 is located in the groove 211 and is slidably connected to the inner wall of the groove 211. The end of the scraping part 232 near the tape protrudes out of the groove 211. The scraping part 232 is configured as an elastic member and is used to scrape the tape.

[0083] The connecting part 231 and the scraping part 232 are two interconnected parts of the scraping structure 23. The connecting part 231 is the part of the scraping structure 23 used to connect with the adsorption plate 21, and the scraping part 232 is the part of the scraping structure 23 that contacts the tape and scrapes it.

[0084] The connecting part 231 is located in the groove 211 and is slidably connected to the inner wall of the groove 211. Alternatively, the connecting part 231 may be accommodated in the groove 211, and a groove may be provided on the inner wall of the groove 211. The connecting part 231 is slidably connected to the groove, so that the scraping structure 23 can be slidably connected to the groove 211.

[0085] The end of the flattening part 232 near the tape protrudes out of the groove 211. This can be because the flattening part 232 connected to the connecting part 231 extends out of the opening of the groove 211, and the end of the flattening part 232 near the tape protrudes out of the groove 211, so that the end of the flattening part 232 protruding out of the groove 211 can apply a greater resistance force to the tape attached to the electrode, so that the tape can be flattened better.

[0086] The flattening portion 232 is configured as an elastic element, meaning that the flattening portion 232 can undergo elastic deformation. For example, the flattening portion 232 can be made of elastic rubber. By configuring the flattening portion 232 as an elastic element, it can undergo elastic deformation when it abuts against the tape attached to the electrode sheet. This not only allows the flattening portion 232 to provide a stable holding force to the tape, but also reduces the possibility of hard contact between the flattening portion 232 and the tape, thus reducing the possibility of damage to the tape.

[0087] In some embodiments, the scraping portion 232 is configured as a roller, the central axis of which is arranged along a first direction X.

[0088] By configuring the scraping part 232 as a roller and setting the central axis of the roller along the first direction X, the contact between the roller and the conveyor belt is rolling contact when the roller is driven to move along the third direction Z by the driver. This reduces the friction between the roller and the conveyor belt and helps to reduce the possibility of damage to the conveyor belt.

[0089] In some embodiments, the adsorption plate 21 is provided with adsorption holes 212, and the opening of the adsorption holes 212 is provided on the surface of the adsorption plate 21 adsorbing the adhesive tape; the adhesive application assembly 2 also includes a negative pressure air source, which is connected to the adsorption holes 212.

[0090] The adsorption hole 212 can be an air hole provided on the adsorption plate 21 for air intake. The opening of the adsorption hole 212 is located on the surface of the adsorption plate 21 for adsorbing the tape, which means that the adsorption hole 212 is connected to the surface of the adsorption plate 21 for adsorbing the tape. By setting the opening of the adsorption hole 212 on the surface of the adsorption plate 21 for adsorbing the tape, the adsorption hole 212 can draw air from the surface of the adsorption plate 21 used for adsorbing the tape. This not only allows the tape to be adsorbed on the surface of the adsorption plate 21, achieving stable support of the tape by the adsorption plate 21, but also removes dust from the bonding area, which is beneficial to improving the adhesion quality of the tape on the electrode and further helps to expel air bubbles between the tape and the electrode.

[0091] The negative pressure gas source can be a gas source capable of providing a stable negative pressure. It communicates with the adsorption hole 212, enabling the adsorption hole 212 to maintain stable air intake, thus allowing the adsorption plate 21 to stably support the tape. For example, the negative pressure gas source can be provided by a Roots vacuum pump, ensuring stable air intake through the adsorption hole 212.

[0092] In some embodiments, the electrode bonding device further includes an image acquisition unit (not shown) and a control unit (not shown). The image acquisition unit is used to acquire images at the gap 30. The control unit is communicatively connected to the image acquisition unit, the first clamping mechanism 11 and the second clamping mechanism 12. The control unit can control the first clamping mechanism 11 and the second clamping mechanism 12 to adjust the relative positions of the first electrode 10 and the second electrode 20 according to the image.

[0093] The image acquisition unit can be a device for acquiring images at the gap 30 between the first electrode 10 and the second electrode 20. For example, the image acquisition unit can be spaced apart from the gap 30 between the first electrode 10 and the second electrode 20 in the second direction Y, and is capable of acquiring images at the gap 30 between the first electrode 10 and the second electrode 20.

[0094] For example, the image acquisition unit may include a charge-coupled device (CCD) image acquisition unit. The CCD image acquisition unit has advantages such as high sensitivity, strong light resistance, and low distortion, which helps to improve the quality of the image at the gap 30 of the first electrode 10 and the second electrode 20, and helps to improve the accuracy of the position adjustment of the first electrode 10 and the second electrode 20.

[0095] The pixel value range of the image acquisition unit can be set to 30 million to 60 million, resulting in images with high clarity. For example, the pixel value of the image acquisition unit can be set to 40 million, 50 million, or 60 million; those skilled in the art can set the pixel value of the image acquisition unit according to actual needs. For example, setting the pixel value range of the image acquisition unit to 40 million to 50 million not only ensures high image clarity but also reduces the cost increase caused by using excessively high pixel values.

[0096] The control unit can be an industrial control computer, capable of performing numerical calculations, logical calculations, and storage memory functions. The control unit can store and run programs for determining whether the first electrode 10 and the second electrode 20 are aligned, as well as programs for controlling the first clamping mechanism 11 and the second clamping mechanism 12 to adjust the relative positions of the first electrode 10 and the second electrode 20.

[0097] By communicating with the control unit, the image acquisition unit, the first clamping mechanism 11, and the second clamping mechanism 12, the control unit can control the first clamping mechanism 11 and the second clamping mechanism 12 to adjust the relative positions of the first electrode 10 and the second electrode 20 according to the image. This not only allows the first electrode 10 and the second electrode 20 to be set at relative intervals along the first direction X, making them less prone to misalignment, but also allows the gap 30 between the first electrode 10 and the second electrode 20 to be within a preset range in the first direction X, which is beneficial to improving the quality of the tape connection between the first electrode 10 and the second electrode 20.

[0098] In some embodiments, the electrode bonding device further includes a support assembly 5, which includes two third clamping mechanisms 51 and two fourth clamping mechanisms 52 arranged opposite to each other along the second direction Y. The third clamping mechanisms 51 are spaced apart from the first clamping mechanism 11, and the two third clamping mechanisms 51 can clamp the first electrode 10 from both sides of the second direction Y. The fourth clamping mechanisms 52 are spaced apart from the second clamping mechanism 12, and the two fourth clamping mechanisms 52 can clamp the second electrode 20 from both sides of the second direction Y.

[0099] The support assembly 5 may be a plurality of components for supporting the first electrode 10 and the second electrode 20. By clamping the first electrode 10 and the second electrode 20, the positions of the first electrode 10 and the second electrode 20 are fixed, thereby reducing the possibility of movement of the first electrode 10 and the second electrode 20 when applying the adhesive tape.

[0100] The third clamping mechanism 51 can be a mechanism for clamping the first electrode 10, thereby fixing the first electrode 10 by clamping it. The fourth clamping mechanism 52 can be a mechanism for clamping the second electrode 20, thereby fixing the second electrode 20 by clamping it.

[0101] By arranging two third clamping mechanisms 51 at a relative interval along the second direction Y, the two third clamping mechanisms 51 can clamp the first electrode 10 from both sides of the second direction Y by bringing them closer together. By arranging two second clamping mechanisms 12 at a relative interval along the second direction Y, the two second clamping mechanisms 12 can clamp the first electrode 10 from both sides of the second direction Y by bringing them closer together.

[0102] The third clamping mechanism 51 is spaced apart from the first clamping mechanism 11. Specifically, the third clamping mechanism 51 and the first clamping mechanism 11 are spaced apart along the first direction X. The third clamping mechanism 51 can clamp the part of the first electrode 10 that is away from the first clamping mechanism 11, so that the first electrode 10 can be clamped from both ends by the first clamping mechanism 11 and the third clamping mechanism 51, thereby stabilizing the position of the first electrode 10.

[0103] Two third clamping mechanisms 51 clamp the first electrode 10 from both sides of the second direction Y, which can firmly fix the first electrode 10 and reduce the possibility of its position shifting.

[0104] By arranging the two fourth clamping mechanisms 52 at a relative interval along the second direction Y, the two fourth clamping mechanisms 52 can clamp the second electrode 20 from both sides of the second direction Y by bringing them closer together.

[0105] The fourth clamping mechanism 52 is spaced apart from the second clamping mechanism 12. Specifically, the fourth clamping mechanism 52 and the second clamping mechanism 12 are spaced apart along the first direction X. The fourth clamping mechanism 52 can clamp the part of the second electrode 20 that is away from the second clamping mechanism 12, so that the second electrode 20 can be clamped from both ends by the second clamping mechanism 12 and the fourth clamping mechanism 52, thereby stabilizing the position of the second electrode 20.

[0106] Two fourth clamping mechanisms 52 clamp the second electrode 20 from both sides of the second direction Y, which can firmly fix the second electrode 20 and reduce the possibility of its position shifting.

[0107] This application also provides a battery device manufacturing system, which includes the electrode bonding device provided by the above-described technical solution.

[0108] This application also provides a method for bonding electrode sheets, which is used to connect a first electrode sheet 10 and a second electrode sheet 20 that are spaced apart along a first direction X. (See reference...) Figure 4 The electrode bonding method includes:

[0109] S1. A clamping assembly 1 is provided. The clamping assembly 1 includes two first clamping mechanisms 11 and two second clamping mechanisms 12 arranged opposite to each other along the second direction Y. The two first clamping mechanisms 11 clamp the first electrode 10 from both sides of the second direction Y, and the two second clamping mechanisms 12 clamp the second electrode 20 from both sides of the second direction Y.

[0110] In step S1 above, when the two first clamping mechanisms 11 clamp the first electrode 10 from both sides of the second direction Y, a portion of the first electrode 10 can extend out from between the two first clamping mechanisms 11. When the two second clamping mechanisms 12 clamp the second electrode 20 from both sides of the second direction Y, a portion of the second electrode 20 can extend out from between the two second clamping mechanisms 12. The portion of the first electrode 10 extending out from between the two first clamping mechanisms 11 and the portion of the second electrode 20 extending out from between the two second clamping mechanisms 12 are spaced apart in the first direction X to form a gap 30.

[0111] S2. An adhesive application assembly 2 is provided. The adhesive application assembly 2 includes an adsorption plate 21, a driver, and a scraping structure 23. The scraping structure 23 is movably connected to the adsorption plate 21 along the third direction Z. The scraping structure 23 is drivenly connected to the driver. The adsorption plate 21 adsorbs the adhesive tape and applies the adhesive tape to the first electrode 10 and the second electrode 20. The adhesive tape covers the gap 30 between the first electrode 10 and the second electrode 20.

[0112] In step S2 above, the adsorption plate 21 adsorbs the tape and attaches the tape to the first electrode 10 and the second electrode 20. The tape covers the gap 30 between the first electrode 10 and the second electrode 20, and the tape connects the first electrode 10 and the second electrode 20.

[0113] S3. The driver drives the scraping structure 23 to move along the third direction Z, so that the scraping structure 23 scrapes the tape from the side of the tape close to the adsorption plate 21 along the third direction Z, where the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0114] In step S3 above, the driver moves the flattening structure 23 along the third direction Z, so that the flattening structure 23 can move along the third direction Z and scrape the tape from the side of the tape close to the adsorption plate 21. This allows the flattening structure 23 to scrape the two ends of the tape sequentially along the third direction Z. This not only flattens the tape, but also squeezes out air bubbles between the tape and the first electrode 10 or the second electrode 20, reducing the risk of the tape adhering to the first electrode 10 or the second electrode 20 wrinkling. This reduces the risk of electrode wrinkling and helps improve the reliability of the battery device.

[0115] In some embodiments, in step S2, an adhesive application assembly 2 is provided. The adhesive application assembly 2 includes an adsorption plate 21, a driver, and a smoothing structure 23. The smoothing structure 23 is movably connected to the adsorption plate 21 along a third direction Z, and the smoothing structure 23 is drivenly connected to the driver. The adsorption plate 21 adsorbs the adhesive tape and applies the adhesive tape to the first electrode 10 and the second electrode 20. Before the adhesive tape covers the gap 30 between the first electrode 10 and the second electrode 20, the electrode adhesive application method further includes:

[0116] S20. Provide an image acquisition unit and a control unit. The control unit is communicatively connected to the image acquisition unit, the first clamping mechanism 11, and the second clamping mechanism 12. The image acquisition unit acquires an image at the gap 30. The control unit controls the first clamping mechanism 11 and the second clamping mechanism 12 to adjust the relative positions of the first electrode 10 and the second electrode 20 according to the image, so that the first electrode 10 and the second electrode 20 are aligned.

[0117] In step S20 above, the control unit controls the first clamping mechanism 11 and the second clamping mechanism 12 to adjust the relative positions of the first electrode 10 and the second electrode 20 according to the image acquired by the image acquisition unit. This not only allows the first electrode 10 and the second electrode 20 to be set at a relative interval along the first direction X, so that the first electrode 10 and the second electrode 20 are aligned and not easily misaligned, but also adjusts the size of the gap 30 between the first electrode 10 and the second electrode 20 in the first direction X to be within a preset range, which is beneficial to improving the quality of the tape connection between the first electrode 10 and the second electrode 20.

[0118] In some embodiments, the adsorption plate 21 is provided with adsorption holes 212, the openings of which are located on the surface of the adsorption plate 21 adsorbing the adhesive tape; the adhesive application assembly 2 further includes a negative pressure air source connected to the adsorption holes 212; while the driver drives the scraping structure 23 to move along the third direction Z, so that the scraping structure 23 scrapes the adhesive tape from the side of the adhesive tape close to the adsorption plate 21 along the third direction Z, the electrode adhesive application method further includes:

[0119] The negative pressure air source maintains air intake at the location where the adhesive tape is attached through the adsorption hole 212.

[0120] While the scraping structure 23 scrapes the tape, the negative pressure air source keeps drawing air from the tape-attached position through the adsorption hole 212, which can create a negative pressure environment on the outside of the tape. This helps to squeeze out air bubbles between the tape and the electrode, thus improving the bonding quality between the tape and the electrode.

[0121] Some embodiments of this application provide an electrode applicator for connecting a first electrode 10 and a second electrode 20 spaced apart along a first direction X. The electrode applicator includes a clamping assembly 1 and an applicator assembly 2. The clamping assembly 1 includes two first clamping mechanisms 11 and two second clamping mechanisms 12 arranged opposite each other along a second direction Y. The two first clamping mechanisms 11 can clamp the first electrode 10 from both sides of the second direction Y, and the two second clamping mechanisms 12 can clamp the second electrode 20 from both sides of the second direction Y. Two scraping structures 23 of the applicator assembly 2 are arranged opposite each other along the first direction X and are at least partially located in a groove 211. The scraping structures 23 are slidably connected to the groove 211 along a third direction Z. Under the drive of a driver, the scraping structures 23 can move along the third direction Z and scrape the tape across the side of the tape closest to the adsorption plate 21.

[0122] In the above structure, since the adsorption plate 21 used for adsorbing the tape is movably connected to the flattening structure 23 along the third direction Z, after the adsorption plate 21 attaches the tape to the first electrode 10 and the second electrode 20, the flattening structure 23 can move along the third direction Z and scrape the tape from the side of the tape close to the adsorption plate 21. This allows the flattening structure 23 to scrape the two ends of the tape sequentially along the third direction Z, which not only flattens the tape but also squeezes out air bubbles between the tape and the first electrode 10 or the second electrode 20, reducing the risk of the tape wrinkling on the first electrode 10 or the second electrode 20, thereby reducing the risk of electrode wrinkling and improving the reliability of the battery device.

[0123] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electrode adhesive bonding device, characterized in that, The electrode bonding device is used to connect a first electrode and a second electrode that are spaced apart along a first direction. The clamping assembly includes two first clamping mechanisms and two second clamping mechanisms arranged opposite each other along a second direction. The two first clamping mechanisms are capable of clamping the first electrode from both sides of the second direction, and the two second clamping mechanisms are capable of clamping the second electrode from both sides of the second direction. An adhesive application assembly includes an adsorption plate, a driver, and a scraping structure. The scraping structure is movably connected to the adsorption plate along a third direction and is driven by the driver. The adsorption plate adsorbs adhesive tape and applies the tape to a first electrode and a second electrode, with the tape covering the gap between the first and second electrodes. Driven by the driver, the scraping structure can move along the third direction and scrape the tape across the side of the tape near the adsorption plate. The first direction, the second direction, and the third direction are perpendicular to each other. The surface of the adsorption plate adsorbing the tape has an inwardly recessed groove extending along the third direction. At least a portion of the scraping structure is disposed in the groove. The scraping structure includes a connecting portion and a scraping portion connected to each other. The connecting portion is located in the groove and slidably connected to the inner wall of the groove. The end of the scraping portion near the tape protrudes outside the groove, and the scraping portion is configured as an elastic element.

2. The electrode bonding device according to claim 1, characterized in that, The adsorption plate is provided with two scraping structures arranged opposite each other along the first direction. One of the two scraping structures is used to scrape over the portion of the tape attached to the first electrode, and the other is used to scrape over the portion of the tape attached to the second electrode.

3. The electrode bonding device according to claim 1, characterized in that, The leveling part is configured as a roller, and the central axis of the roller is arranged along the first direction.

4. The electrode bonding device according to claim 1, characterized in that, The adsorption plate is provided with adsorption holes, and the openings of the adsorption holes are located on the surface of the adsorption plate that adsorbs the tape; the adhesive application assembly also includes a negative pressure air source, which is connected to the adsorption holes.

5. The electrode bonding device according to claim 1, characterized in that, The electrode bonding device further includes an image acquisition unit and a control unit. The image acquisition unit is used to acquire images of the gap. The control unit is communicatively connected to the image acquisition unit, the first clamping mechanism, and the second clamping mechanism. The control unit can control the first clamping mechanism and the second clamping mechanism to adjust the relative positions of the first electrode and the second electrode according to the image.

6. The electrode bonding device according to claim 1, characterized in that, The electrode bonding device further includes a support assembly, which includes two third clamping mechanisms and two fourth clamping mechanisms arranged opposite each other along the second direction. The third clamping mechanisms are spaced apart from the first clamping mechanism, and the two third clamping mechanisms can clamp the first electrode from both sides of the second direction. The fourth clamping mechanisms are spaced apart from the second clamping mechanism, and the two fourth clamping mechanisms can clamp the second electrode from both sides of the second direction.

7. A battery device production system, characterized in that, Includes the electrode bonding apparatus as described in any one of claims 1-6.

8. A method for bonding electrode sheets with adhesive, characterized in that, The electrode bonding method for connecting a first electrode and a second electrode spaced apart along a first direction includes: A clamping assembly is provided, the clamping assembly including two first clamping mechanisms and two second clamping mechanisms arranged opposite each other along a second direction; the two first clamping mechanisms clamp the first electrode from both sides of the second direction, and the two second clamping mechanisms clamp the second electrode from both sides of the second direction; An adhesive application assembly is provided, comprising an adsorption plate, a driver, and a flattening structure. The flattening structure is movably connected to the adsorption plate along a third direction and is drively connected to the driver. The adsorption plate adsorbs adhesive tape and applies the tape to a first electrode and a second electrode, the tape covering the gap between the first and second electrode. The surface of the adsorption plate adsorbing the tape has an inwardly recessed groove extending along the third direction. At least a portion of the flattening structure is disposed in the groove. The flattening structure includes a connecting portion and a flattening portion connected to each other. The connecting portion is located in the groove and slidably connected to the inner wall of the groove. The end of the flattening portion near the tape protrudes outside the groove, and the flattening portion is configured as an elastic element. The driver drives the scraping structure to move along the third direction, so that the scraping structure scrapes the tape from the side of the tape near the adsorption plate along the third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.

9. The electrode bonding method according to claim 8, characterized in that, In providing an adhesive application assembly, the adhesive application assembly includes an adsorption plate, a driver, and a smoothing structure, wherein the smoothing structure is movably connected to the adsorption plate along a third direction, and the smoothing structure is drively connected to the driver; the adsorption plate adsorbs adhesive tape and applies the adhesive tape to the first electrode and the second electrode, and before the adhesive tape covers the gap between the first electrode and the second electrode, the electrode adhesive application method further includes: An image acquisition unit and a control unit are provided. The control unit is communicatively connected to the image acquisition unit, the first clamping mechanism, and the second clamping mechanism. The image acquisition unit acquires an image at the gap. The control unit controls the first clamping mechanism and the second clamping mechanism to adjust the relative positions of the first electrode and the second electrode according to the image, so that the first electrode and the second electrode are aligned.

10. The electrode bonding method according to claim 8, characterized in that, The adsorption plate is provided with adsorption holes, and the openings of the adsorption holes are located on the surface of the adsorption plate that adsorbs the adhesive tape; the adhesive application assembly further includes a negative pressure air source, which is connected to the adsorption holes; while the driver drives the scraping structure to move along the third direction, so that the scraping structure scrapes the adhesive tape from the side of the adhesive tape near the adsorption plate along the third direction, the electrode adhesive application method further includes: The negative pressure air source draws air from the location where the tape is attached through the adsorption hole.

Images