Gluing device and battery production system

Abstract

The embodiment of the utility model provides a rubberizing device and a battery production system. The rubberizing device comprises a first rubberizing structure, a second rubberizing structure, a third rubberizing structure and a first driving part. The first rubberizing structure is provided with a first negative pressure hole which is used for adsorbing a rubber material. And the second rubberizing structure is provided with a second negative pressure hole which is used for adsorbing the rubber material. The third rubberizing structure is located between the first rubberizing structure and the second rubberizing structure and is configured to move in the first direction, and the corner, away from the second rubberizing structure, of the third rubberizing structure is provided with a curved surface bent outwards. The first driving part is connected to the third rubberizing structure and used for driving the third rubberizing structure to reciprocate in the second direction so that the curved surface can abut against the rubber material to the non-welded area of the tab, and the second direction intersects with the first direction. The quality of the electrode assembly can be improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more specifically, to an adhesive application apparatus and a battery production system. Background Technology

[0002] Battery cells are widely used in electronic devices such as mobile phones, laptops, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and power tools, etc.

[0003] In the development of battery technology, improving the quality of electrode components is a research direction. Utility Model Content

[0004] This application provides an adhesive bonding device and a battery production system that can improve the quality of electrode assemblies.

[0005] This application provides an adhesive application device for applying adhesive to the tabs and adapters of an electrode assembly. The electrode assembly includes a main body and tabs. The adhesive application device includes a first adhesive application structure, a second adhesive application structure, a third adhesive application structure, and a first driving member. The first adhesive application structure has a first negative pressure hole for adsorbing adhesive material and is configured to move along a first direction to adhere the adhesive material to the main body. The second adhesive application structure has a second negative pressure hole for adsorbing adhesive material and is configured to move along the first direction to adhere the adhesive material to the welding area of ​​the tab and adapter. The third adhesive application structure is located between the first and second adhesive application structures and is configured to move along the first direction. The third adhesive application structure has an outwardly curved surface at a corner away from the second adhesive application structure. The first driving member is connected to the third adhesive application structure and is used to drive the third adhesive application structure to reciprocate along a second direction, so that the curved surface presses the adhesive material against the unwelded area of ​​the tab. The second direction intersects the first direction.

[0006] In the above technical solution, the adhesive applicator of this embodiment sets up a first adhesive applicator structure and a third adhesive applicator structure. The first adhesive applicator structure is used to apply adhesive to the main body of the electrode assembly, and the first driving member is used to drive the third adhesive applicator structure to move along the second direction to press the adhesive against the unwelded area of ​​the electrode tab. In this way, the adhesive can fully bond with the unwelded area of ​​the electrode tab, thereby improving the gathering effect of the electrode tab, reducing its redundancy, and improving the quality of the electrode assembly.

[0007] In some embodiments, the first drive member is configured before the second adhesive structure moves along the first direction to the application position, driving the curved surface to press the adhesive against the unwelded area of ​​the tab, and the application position is the position where the second adhesive structure applies the adhesive to the welding area of ​​the tab and the adapter.

[0008] In the above technical solution, the middle area of ​​the adhesive can be pressed against the unwelded area of ​​the electrode tab first, and then the end of the adhesive can be attached to the welded area of ​​the electrode tab, so that the adhesive and the unwelded area of ​​the electrode tab are better attached, reducing bulging and other issues.

[0009] In some embodiments, the second adhesive structure and the third adhesive structure are connected and configured to move together along a first direction to adhere the adhesive to the welding area of ​​the tab and the adapter.

[0010] In the above technical solution, the second adhesive application structure and the third adhesive application structure are connected so that they move together along the first direction. In this way, the interaction area between the adhesive application device and the welding area can be increased, and the adhesion between the adhesive and the welding area can be improved.

[0011] In some embodiments, the third adhesive structure is movably connected to the second adhesive structure along a second direction and is configured to move closer to or further away from the second adhesive structure along the second direction so that the curved surface presses the adhesive against the unwelded area of ​​the tab.

[0012] In the above technical solution, the second adhesive-applying structure can limit the third adhesive-applying structure in the second direction, thereby making the adhesive application position of the third adhesive-applying structure more accurate. Furthermore, it facilitates improvements to the existing structure.

[0013] In some embodiments, the first drive member is configured to drive the curved surface to press the adhesive material against the unwelded area of ​​the tab when the second adhesive structure moves along a first direction.

[0014] The above technical solution can save the time of the adhesive application device and improve the adhesive application efficiency.

[0015] In some embodiments, the first drive member is configured to drive the curved surface to press the adhesive material against the unwelded area of ​​the tab after the second adhesive structure moves along a first direction and stops at a preset position, wherein the preset position and the application position of the second adhesive structure are spaced apart in the first direction.

[0016] The above technical solution allows for more accurate adhesive application and better application results in the third adhesive structure.

[0017] In some embodiments, the second adhesive structure and the third adhesive structure are fixedly connected, and the first driving member is used to drive the second adhesive structure and the third adhesive structure to move together along the second direction.

[0018] The above technical solution simplifies the structure of the adhesive application device.

[0019] In some embodiments, the adhesive applicator further includes a pressure detection structure and a controller connected together. The pressure detection structure is connected to the third adhesive applicator and is used to detect the pressure between the curved surface and the adhesive. The controller is configured to control a first drive member to drive the third adhesive applicator to press the adhesive along a second direction so that the pressure between the curved surface and the adhesive reaches a preset pressure.

[0020] In the above technical solution, a pressure detection structure is set to detect the pressure, so that the pressure between the curved surface and the adhesive is the preset pressure, which improves the consistency of the application effect and reduces poor application and excessive stress on the tabs.

[0021] In some embodiments, the pressure sensing structure is embedded within the third adhesive structure and is flush with the curved surface.

[0022] The above technical solution not only reduces the space occupied by the pressure detection structure, but also provides protection for the pressure detection structure.

[0023] In some embodiments, the curved surface extends along a third direction to the entire third adhesive structure, and the first direction, the second direction, and the third direction intersect each other.

[0024] In the above technical solution, the rubber material can be pressed against any position on the curved surface, making it relatively convenient to use.

[0025] In some embodiments, the adhesive applicator includes a second drive member connected to the first adhesive applicator structure and used to drive the first adhesive applicator structure to reciprocate along a first direction, and configured to apply adhesive to the main body portion before the third adhesive applicator structure is applied.

[0026] In the above technical solution, a second driving component is provided to drive the first adhesive structure to reciprocate along the first direction. In this way, the force pressing against the main body is easy to control and saves manpower.

[0027] In some embodiments, the adhesive applicator includes a third drive member connected to the second adhesive applicator structure or the third adhesive applicator structure, and is used to drive the second adhesive applicator structure and the third adhesive applicator structure to move together along a first direction.

[0028] In the above technical solution, a third driving component is provided, which drives the second adhesive structure and the third adhesive structure to reciprocate together along the first direction. In this way, the force pressing against the welding area of ​​the electrode tab and the adapter is easy to control and saves manpower.

[0029] In some embodiments, there are multiple first negative pressure holes, which are arranged at intervals along a third direction, with the first direction, the second direction, and the third direction intersecting each other; and / or, there are multiple second negative pressure holes, which are arranged at intervals along a third direction, with the first direction, the second direction, and the third direction intersecting each other.

[0030] In the above technical solution, if the first negative pressure hole and / or the second negative pressure hole are arranged at intervals along the third direction, a larger negative pressure area can be formed in the third direction, which facilitates the absorption of adhesive.

[0031] Secondly, embodiments of this application also provide a battery production system, including a welding device and the aforementioned adhesive application device, wherein the welding device is used to weld the tabs of the electrode assembly to the adapter. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the adhesive application device, electrode assembly, and adapter provided in some embodiments of this application during the adhesive application process;

[0034] Figure 2 Another schematic diagram of the adhesive application device, electrode assembly and adapter provided in some embodiments of this application during the adhesive application process;

[0035] Figure 3 Another schematic diagram of the adhesive application apparatus, electrode assembly and adapter provided in some embodiments of this application during the adhesive application process;

[0036] Figure 4 This is yet another schematic diagram of the adhesive application apparatus, electrode assembly, and adapter provided in some embodiments of this application during the adhesive application process;

[0037] Figure 5 This is yet another schematic diagram of the adhesive application apparatus, electrode assembly, and adapter provided in some embodiments of this application during the adhesive application process;

[0038] Figure 6 This is a schematic diagram of the second and third adhesive application structures in the adhesive application apparatus provided in some embodiments of this application;

[0039] Figure 7 for Figure 6 A structural diagram from another angle;

[0040] Figure 8 This is a schematic diagram of the structure of the first adhesive application structure in the adhesive application device provided in some embodiments of this application;

[0041] Figure 9 A schematic diagram of the adhesive application device provided in some embodiments of this application;

[0042] Figure 10 A partial structural diagram of the third adhesive application structure in an adhesive application device provided in some embodiments of this application;

[0043] Figure 11 This is another structural schematic diagram of the adhesive application device provided in some embodiments of this application.

[0044] The reference numerals in the accompanying drawings for the specific embodiments are as follows:

[0045] 100. Adhesive application device; 200. Electrode assembly; 210. Electrode tab; 220. Main body; 300. Adapter; 400. Adhesive material;

[0046] 1. First adhesive bonding structure; 11. First negative pressure hole;

[0047] 2. Second adhesive bonding structure; 21. Second negative pressure hole;

[0048] 3. Third adhesive structure; 31. Curved surface;

[0049] 4. Second driving component;

[0050] 5. Third drive component;

[0051] 6. First driving component;

[0052] 7. Pressure detection structure;

[0053] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0056] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0059] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0060] In this application, "multiple" means two or more (including two).

[0061] During the manufacturing process of a battery cell, the tabs and adapters of the electrode assembly need to be welded. After welding, blue glue is also needed to cover the weld area to reduce the impact of free metal particles on the electrode assembly and reduce the risk of the separator inside the electrode assembly being punctured by metal particles.

[0062] In related technologies, an adhesive applicator is typically used to bond the blue adhesive to the soldering area. However, the unsoldered areas of the electrode tabs are not fully bonded to the blue adhesive, resulting in redundant electrode tabs after battery cell assembly, which affects the quality of the electrode assembly. Furthermore, the blue adhesive may also enter the soldering areas of subsequent adapters and electrode terminals, causing subsequent burn-in of the blue adhesive and leading to poor soldering.

[0063] In view of this, this application provides an adhesive application device. The device comprises a first adhesive application structure and a third adhesive application structure. The first adhesive application structure applies adhesive to the main body of the electrode assembly, and the third adhesive application structure applies adhesive to the unsoldered areas of the tabs. This ensures that the adhesive fully adheres to the unsoldered areas of the tabs, thereby improving the convergence of the tabs, reducing redundancy, and improving the quality of the electrode assembly. Furthermore, the adhesive adheres to the main body, the soldered areas of the tabs, and the unsoldered areas, resulting in a large bonding area. This prevents the adhesive from shifting and entering the soldering area between the adapter and the electrode terminals, thus reducing the occurrence of soldering defects.

[0064] Figure 1 This is a schematic diagram of the adhesive application device, electrode assembly, and adapter provided in some embodiments of this application during the adhesive application process; Figure 2 Another schematic diagram of the adhesive application device, electrode assembly and adapter provided in some embodiments of this application during the adhesive application process; Figure 3 Another schematic diagram of the adhesive application apparatus, electrode assembly and adapter provided in some embodiments of this application during the adhesive application process; Figure 4 This is yet another schematic diagram of the adhesive application apparatus, electrode assembly, and adapter provided in some embodiments of this application during the adhesive application process; Figure 5 This is yet another schematic diagram of the adhesive application apparatus, electrode assembly, and adapter provided in some embodiments of this application during the adhesive application process; Figure 6 This is a schematic diagram of the second and third adhesive application structures in the adhesive application apparatus provided in some embodiments of this application; Figure 7 for Figure 6 A structural diagram from another angle; Figure 8 This is a schematic diagram of the structure of the first adhesive application structure in the adhesive application device provided in some embodiments of this application; Figure 9 This is a schematic diagram of the structure of an adhesive applicator provided in some embodiments of this application.

[0065] like Figures 1-9As shown, this application provides an adhesive application device 100 for use in the adhesive application process of the tab 210 of an electrode assembly 200 and the adapter 300. The electrode assembly 200 includes a main body 220 and a tab 210. The adhesive application device 100 includes a first adhesive application structure 1, a second adhesive application structure 2, a third adhesive application structure 3, and a first driving member 6. The first adhesive application structure 1 is provided with a first negative pressure hole 11 for adsorbing adhesive 400. The first adhesive application structure 1 is configured to move along a first direction X to adhere the adhesive 400 to the main body 220. The second adhesive application structure 2 is provided with a second negative pressure hole 21 for adsorbing adhesive 400. The second adhesive application structure 2 is configured to move along the first direction X to adhere the adhesive 400 to the welding area of ​​the tab 210 and the adapter 300. The third adhesive-applying structure 3 is located between the first adhesive-applying structure 1 and the second adhesive-applying structure 2 and is configured to move along the first direction X. The third adhesive-applying structure 3 has an outwardly curved surface 31 at the corner opposite to the second adhesive-applying structure 2. The first driving member 6 is connected to the third adhesive-applying structure 3 and is used to drive the third adhesive-applying structure 3 to reciprocate along the second direction Y, so that the curved surface 31 presses the adhesive 400 against the unwelded area of ​​the tab 210. The second direction Y intersects with the first direction X.

[0066] The main body 220 in this embodiment refers to the part of the electrode assembly 200 excluding the tabs 210, including the positive electrode, the negative electrode, and the separator, etc.

[0067] In this embodiment, the number of first negative pressure holes 11 can be one or more. The number of second negative pressure holes 21 can also be one or more.

[0068] For example, the adhesive applicator 100 further includes a first negative pressure mechanism, which is connected to the first negative pressure hole 11 and is used to provide negative pressure to the first negative pressure hole 11. The first negative pressure mechanism can be a vacuum pump or a negative pressure fan.

[0069] For example, the adhesive applicator 100 further includes a second negative pressure mechanism, which is connected to the second negative pressure hole 21 and is used to provide negative pressure to the second negative pressure hole 21. The second negative pressure mechanism can be a vacuum pump or a negative pressure fan.

[0070] In this embodiment, the third adhesive structure 3 is located between the first adhesive structure 1 and the second adhesive structure 2. This means that the third adhesive structure 3 is provided between the first adhesive structure 1 and the second adhesive structure 2. The three structures may be in the same row or not in the same row.

[0071] In this embodiment, the third adhesive structure 3 is configured to move along the first direction X. It may move along the first direction X together with the second adhesive structure 2, or it may not move along the first direction X together with the second adhesive structure 2.

[0072] In this embodiment, the corner where the third adhesive structure 3 is away from the second adhesive structure 2 refers to the end of the third adhesive structure 3 facing the tab 210 that is away from the second adhesive structure 2.

[0073] In this embodiment, the curved surface 31 of the third adhesive structure 3 refers to the outwardly bulging and curved surface, whose curvature can be equal or unequal everywhere.

[0074] In this embodiment, the unwelded area of ​​the tab 210 refers to the part of the tab 210 that is not welded to the adapter 300.

[0075] Optionally, the first direction X and the second direction Y are set perpendicularly. For example... Figure 1 As shown in the diagram, the first direction X is the vertical direction, and the second direction Y is the horizontal direction.

[0076] In this embodiment, the third adhesive structure 3 reciprocates along the second direction Y under the action of the first driving member 6. Specifically, the second adhesive structure 2 and the third adhesive structure 3 can reciprocate together along the second direction Y of the first driving member 6, or only the third adhesive structure 3 can reciprocate along the second direction Y.

[0077] The first driving component 6 in this embodiment can be a cylinder, a hydraulic cylinder, or a motor, etc.

[0078] The adhesive applicator 100 of this embodiment uses a first adhesive applicator structure 1 and a third adhesive applicator structure 3. The first adhesive applicator structure 1 applies adhesive 400 to the main body 220 of the electrode assembly 200. The first driving member 6 drives the third adhesive applicator structure 3 to move along the second direction Y, pressing the adhesive 400 against the unwelded area of ​​the tab 210. This ensures that the adhesive 400 adheres fully to the unwelded area of ​​the tab 210, improving the gathering effect on the tab 210, reducing redundancy, and improving the quality of the electrode assembly 200. Furthermore, the adhesive 400 adheres to the main body 220, the welded area of ​​the tab 210, and the unwelded area, resulting in a large adhesion area. This prevents the adhesive 400 from shifting and entering the welding area between the adapter 300 and the electrode terminal, thus reducing the occurrence of welding defects.

[0079] In some embodiments, the first driving member 6 is configured to press the adhesive 400 against the unwelded area of ​​the tab 210 before the second adhesive structure 2 moves along the first direction X to the application position. The application position is the position where the second adhesive structure 2 applies the adhesive 400 to the welding area of ​​the tab 210 and the adapter 300.

[0080] For example, the second adhesive structure 2 and the third adhesive structure 3 are spaced apart and not connected.

[0081] With this setup, the middle area of ​​the adhesive 400 can be pressed against the unwelded area of ​​the tab 210 first, and then the end of the adhesive 400 can be attached to the welded area of ​​the tab 210. This allows the adhesive 400 to adhere better to the unwelded area of ​​the tab 210, reducing bulging and other issues.

[0082] In some embodiments, the second adhesive structure 2 and the third adhesive structure 3 are connected and configured to move together along a first direction X to adhere the adhesive 400 to the welding area of ​​the tab 210 and the adapter 300.

[0083] In this embodiment, the second adhesive structure 2 can be fixedly connected to the third adhesive structure 3, that is, the two are immovable relative to each other; the third adhesive structure 3 can also move relative to the second adhesive structure 2 along the second direction Y, for example, the two can be connected by rolling.

[0084] By connecting the second adhesive structure 2 and the third adhesive structure 3 so that they move together along the first direction X, the interaction area between the adhesive device 100 and the welding area can be increased, thereby improving the adhesion of the adhesive 400 to the welding area.

[0085] In some embodiments, the third adhesive structure 3 is movably connected to the second adhesive structure 2 along the second direction Y, and is configured to move closer to or further away from the second adhesive structure 2 along the second direction Y so that the curved surface 31 presses the adhesive 400 against the unwelded area of ​​the tab 210.

[0086] In this embodiment, the third adhesive structure 3 can be movably connected to the second adhesive structure 2 in the second direction Y by means of sliding connection or rolling connection. For example, the second adhesive structure 2 includes a round rod that extends along the second direction Y, and the third adhesive structure 3 includes a plurality of rollers that are spaced apart on the outer periphery of the round rod and roll along the round rod in the second direction Y to achieve a rolling connection between the second adhesive structure 2 and the third adhesive structure 3.

[0087] In this embodiment, the third adhesive structure 3 can reciprocate relative to the second adhesive structure 2 along the second direction Y.

[0088] With this configuration, the second adhesive structure 2 can limit the third adhesive structure 3 in the second direction Y, thereby making the adhesive application position of the third adhesive structure 3 more accurate. Furthermore, it facilitates improvements to the existing structure.

[0089] In one embodiment, the second adhesive structure 2 and the third adhesive structure 3 are slidably connected.

[0090] In this embodiment, the sliding connection refers to the connection between the second adhesive structure 2 and the third adhesive structure 3 through a sliding fit between two surfaces.

[0091] For example, the second adhesive structure 2 has a circular tube extending along the second direction Y, and the third adhesive structure 3 has a cylinder sleeved outside the circular tube. The second adhesive structure 2 and the third adhesive structure 3 are slidably connected through the circular tube and the cylinder.

[0092] For example, the second adhesive structure 2 is provided with a slide rail extending along the second direction Y, and the third adhesive structure 3 is provided with a slider that convexly and concavely engages with the slide rail. The second adhesive structure 2 and the third adhesive structure 3 are slidably connected through the slide rail and the slider.

[0093] The second adhesive structure 2 and the third adhesive structure 3 are designed as sliding connections, which are simple and relatively reliable.

[0094] In some embodiments, the first drive member 6 is configured to drive the curved surface 31 to press the adhesive 400 against the unwelded area of ​​the tab 210 when the second adhesive structure 2 moves along the first direction X.

[0095] In this embodiment, the second adhesive-applying structure 2 moves along the first direction X. This means that during the movement of the second adhesive-applying structure 2 along the first direction X, the third adhesive-applying structure 3 also moves along the second direction Y, pressing the adhesive material 400 against the unwelded area of ​​the tab 210. Only after the adhesive material 400 has pressed against the unwelded area of ​​the tab 210 does the second adhesive-applying structure 2 and the third adhesive-applying structure 3 move along the first direction X to the application position. The application position is the location where the second adhesive-applying structure 2 applies the adhesive material 400 to the welding area between the tab 210 and the adapter 300.

[0096] This setup can save 100% of the adhesive application time and improve adhesive application efficiency.

[0097] In some embodiments, the first drive member 6 is configured to drive the curved surface 31 to press the adhesive 400 against the unwelded area of ​​the tab 210 after the second adhesive structure 2 moves along the first direction X and stops at a preset position, wherein the preset position and the application position of the second adhesive structure 2 are spaced apart in the first direction X.

[0098] In this embodiment, the application location is where the second adhesive structure 2 applies the adhesive 400 to the welding area between the tab 210 and the adapter 300. For example... Figure 3 and 4 As shown, the preset position is located above the application position.

[0099] This design allows for more accurate application of the adhesive in the third adhesive structure 3, resulting in better application.

[0100] In some embodiments, the second adhesive structure 2 and the third adhesive structure 3 are fixedly connected, and the first driving member 6 is used to drive the second adhesive structure 2 and the third adhesive structure 3 to move together along the second direction Y.

[0101] In this embodiment, the second adhesive structure 2 and the third adhesive structure 3 can be fixedly connected by means of integral molding, welding, bolting, or connection through other components. For example, the first driving member 6 and the third adhesive structure 3 are connected through the second adhesive structure 2.

[0102] This design simplifies the structure of the adhesive applicator 100.

[0103] Figure 10 This is a partial structural diagram of the third adhesive application structure in an adhesive application device provided in some embodiments of this application.

[0104] Please see Figure 10 In some embodiments, the adhesive applicator 100 further includes a pressure detection structure 7 and a controller connected together. The pressure detection structure 7 is connected to the third adhesive applicator 3 and is used to detect the pressure between the curved surface 31 and the adhesive 400. The controller is configured to control the first drive member 6 to drive the third adhesive applicator 3 to press against the adhesive 400 along the second direction Y so that the pressure between the curved surface 31 and the adhesive 400 reaches a preset pressure.

[0105] The preset pressure in this embodiment depends on the actual usage.

[0106] The pressure detection structure 7 in this embodiment can be a pressure sensor or other pressure measurement structure.

[0107] For example, the pressure detection structure 7 can be disposed on the outside of the third adhesive structure 3. The detection surface of the pressure detection structure 7 is approximately flush with the curved surface 31 and in contact with the adhesive 400. Thus, the pressure between itself and the adhesive 400 detected by the pressure detection structure 7 can be regarded as the pressure between the curved surface 31 and the adhesive 400.

[0108] Since the pressure exerted by the curved surface 31 on the rubber material 400 also acts on the tab 210, the pressure between the curved surface 31 and the rubber material 400 can be regarded as the pressure between the rubber material 400 and the tab 210.

[0109] The pressure detection structure 7 is set to detect the pressure, so that the pressure between the curved surface 31 and the adhesive 400 is the preset pressure, which improves the consistency of the application effect and reduces poor application and excessive stress on the tab 210.

[0110] In some embodiments, the pressure detection structure 7 is embedded in the third adhesive structure 3 and is flush with the curved surface 31.

[0111] In this embodiment, the third adhesive structure 3 is provided with a groove, and the pressure detection structure 7 is located in the groove.

[0112] This design not only reduces the space occupied by the pressure detection structure 7, but also provides protection for the pressure detection structure 7.

[0113] In some embodiments, the curved surface 31 extends along the third direction Z to the entire third adhesive structure 3, and the first direction X, the second direction Y and the third direction Z intersect each other.

[0114] Optionally, the first direction X, the second direction Y, and the third direction Z are all perpendicular to each other.

[0115] With this configuration, the curved surface 31 can press against the rubber material at any position, making it more convenient to use.

[0116] Figure 11 This is another structural schematic diagram of the adhesive application device provided in some embodiments of this application.

[0117] Please see Figure 9 and Figure 11 In some embodiments, the adhesive applicator 100 includes a second drive member 4 connected to the first adhesive applicator structure 1 and used to drive the first adhesive applicator structure 1 to reciprocate along a first direction X, and is configured to apply the adhesive 400 to the main body 220 before the third adhesive applicator structure 3 is applied.

[0118] The second driving component 4 in this embodiment can be a cylinder, a hydraulic cylinder, or a motor, etc.

[0119] In this embodiment, the adhesive application sequence is as follows: the first adhesive application structure 1 first applies the adhesive 400 to the main body 220, then the third adhesive application structure 3 presses the adhesive 400 against the unwelded area of ​​the tab 210, and finally the second adhesive application structure 2 applies the adhesive 400 to the welding area of ​​the tab 210.

[0120] A second driving component 4 is provided, which drives the first adhesive structure 1 to reciprocate along the first direction X. In this way, the force pressing against the main body 220 is easy to control and saves manpower.

[0121] In some embodiments, the adhesive applicator 100 includes a third drive member 5, which is connected to the second adhesive applicator structure 2 or the third adhesive applicator structure 3 and is used to drive the second adhesive applicator structure 2 and the third adhesive applicator structure 3 to reciprocate together along the first direction X.

[0122] The third driving component 5 in this embodiment can be a cylinder, a hydraulic cylinder, or a motor, etc.

[0123] A third driving component 5 is provided, which drives the second adhesive structure 2 and the third adhesive structure 3 to reciprocate together along the first direction X. In this way, the force pressing against the welding area of ​​the electrode tab 210 and the adapter 300 is easy to control and saves manpower.

[0124] For example, the adhesive applicator 100 includes a third driving member 5 and a first driving member 6. The first driving member 6 only drives the third adhesive applicator 3 to reciprocate along the second direction Y. The first driving member 6 and the second adhesive applicator 2 are both connected to the third driving member 5 and reciprocate along the first direction X under the drive of the third driving member 5.

[0125] For example, the adhesive application device 100 includes both a third driving member 5 and a first driving member 6, and the second adhesive application structure 2 and the third adhesive application structure 3 are fixedly connected. The first driving member 6 drives the second adhesive application structure 2 and the third adhesive application structure 3 to reciprocate together along the second direction Y; Figure 9 The first driving member 6 is connected to the third driving member 5 and reciprocates along the first direction X under the drive of the third driving member 5, or as shown. Figure 11 As shown, the third driving member 5 is connected to the first driving member 6 and reciprocates along the second direction Y under the drive of the first driving member 6.

[0126] In some embodiments, the number of first negative pressure holes 11 is multiple, and the multiple first negative pressure holes 11 are arranged at intervals along the third direction Z, with the first direction X, the second direction Y and the third direction Z intersecting each other; and / or, the number of second negative pressure holes 21 is multiple, and the multiple second negative pressure holes 21 are arranged at intervals along the third direction Z, with the first direction X, the second direction Y and the third direction Z intersecting each other.

[0127] Optionally, the first direction X, the second direction Y, and the third direction Z are all perpendicular to each other.

[0128] In this embodiment, the number of first negative pressure holes 11 can be two, three, or four, etc. The number of second negative pressure holes 21 can be two, three, or four, etc.

[0129] By arranging the first negative pressure hole 11 and / or the second negative pressure hole 21 at intervals along the third direction Z, a larger negative pressure area can be formed in the third direction Z, which facilitates the absorption of the adhesive 400.

[0130] Please see Figures 1-5 In one specific embodiment, the adhesive application process is as follows:

[0131] like Figure 1 The first adhesive structure 1, the third adhesive structure 3, and the second adhesive structure 2 are arranged sequentially along the second direction Y, and the first adhesive structure 1 and the second adhesive structure 2 adsorb adhesive material 400.

[0132] like Figure 2 The first adhesive structure 1, the third adhesive structure 3, and the second adhesive structure 2 move downward together along the first direction X, and the first adhesive structure 1 presses the adhesive 400 against the main body 220.

[0133] The first adhesive bonding structure 1 and the second adhesive bonding structure 2 stop adsorbing adhesive material 400;

[0134] like Figure 3 The third adhesive structure 3 and the second adhesive structure 2 continue to move downwards. When the distance from the adapter 300 is 1mm, the third adhesive structure 3 and the second adhesive structure 2 stop moving downwards.

[0135] like Figure 4 The third adhesive structure 3 moves along the second direction Y, pressing the adhesive 400 against the unwelded area of ​​the tab 210;

[0136] like Figure 5 The third adhesive bonding structure 3 returns to its original position along the second direction Y, and together with the second adhesive bonding structure 2 moves downward along the first direction X, bonding the adhesive 400 to the welding area of ​​the adapter 300 and the tab 210, thus completing the adhesive bonding.

[0137] This application also provides a battery production system, including a welding apparatus and the aforementioned adhesive application apparatus 100. The welding apparatus is used to weld the tabs 210 of the electrode assembly 200 to the adapter 300.

[0138] The welding device in this embodiment can employ ultrasonic welding or laser welding, etc.

[0139] Please see Figures 1-9This application provides an adhesive applicator 100 for applying adhesive to the tabs 210 of an electrode assembly 200 and the adapter 300. The electrode assembly 200 includes a main body 220 and tabs 210. The adhesive applicator 100 includes a first adhesive applicator structure 1, a second adhesive applicator structure 2, a third adhesive applicator structure 3, and a first drive member 6. The first adhesive applicator structure 1 has a first negative pressure hole 11 for adsorbing adhesive 400. The first adhesive applicator structure 1 is configured to move along a first direction X to adhere the adhesive 400 to the main body 220. The second adhesive applicator structure 2 has a second negative pressure hole 21 for adsorbing adhesive 400. The second adhesive applicator structure 2 is configured to move along the first direction X to adhere the adhesive 400 to the welding area of ​​the tabs 210 and the adapter 300. The third adhesive bonding structure 3 is located between the first adhesive bonding structure 1 and the second adhesive bonding structure 2 and is configured to move along the first direction X. The third adhesive bonding structure 3 has an outwardly curved surface 31 at its corner opposite to the second adhesive bonding structure 2. A first driving member 6 is connected to the third adhesive bonding structure 3 and is used to drive the third adhesive bonding structure 3 to reciprocate along the second direction Y, so that the curved surface 31 presses the adhesive material 400 against the unwelded area of ​​the tab 210. The second direction Y intersects the first direction X. The first driving member 6 is positioned before the second adhesive bonding structure 2 moves along the first direction X to the bonding position, driving the curved surface 31 to press the adhesive material 400 against the unwelded area of ​​the tab 210. The bonding position is where the second adhesive bonding structure 2 adheres the adhesive material 400 to the welding area between the tab 210 and the adapter 300. The second adhesive application structure 2 and the third adhesive application structure 3 are connected and configured to move together along the first direction X to adhere the adhesive 400 to the welding area of ​​the tab 210 and the adapter 300. The adhesive application device 100 includes a second drive member 4, which is connected to the first adhesive application structure 1 and is used to drive the first adhesive application structure 1 to reciprocate along the first direction X, and is configured to adhere the adhesive 400 to the main body 220 before the third adhesive application structure 3 is applied. The adhesive application device 100 includes a third drive member 5, which is connected to the second adhesive application structure 2 or the third adhesive application structure 3 and is used to drive the second adhesive application structure 2 and the third adhesive application structure 3 to reciprocate together along the first direction X.

[0140] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended 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 they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An adhesive applicator for applying adhesive to the tabs and adapters of an electrode assembly, the electrode assembly comprising a main body and tabs, characterized in that, The adhesive applicator includes: The first adhesive bonding structure is provided with a first negative pressure hole for adsorbing adhesive material. The first adhesive bonding structure is configured to move along a first direction to adhere the adhesive material to the main body. The second adhesive bonding structure is provided with a second negative pressure hole for adsorbing adhesive material. The second adhesive bonding structure is configured to move along the first direction to bond the adhesive material to the welding area of ​​the tab and the adapter. A third adhesive structure is located between the first adhesive structure and the second adhesive structure and is configured to be movable along the first direction. The third adhesive structure has an outwardly curved surface at the corner opposite to the second adhesive structure. A first driving member is connected to the third adhesive bonding structure and is used to drive the third adhesive bonding structure to reciprocate along a second direction so that the curved surface presses the adhesive material against the unwelded area of ​​the electrode tab, the second direction intersecting the first direction.

2. The adhesive applicator according to claim 1, characterized in that, The first driving member is configured before the second adhesive structure moves along the first direction to the application position, driving the curved surface to press the adhesive material against the unwelded area of ​​the tab. The application position is the position where the second adhesive structure applies the adhesive material to the welding area of ​​the tab and the adapter.

3. The adhesive applicator according to claim 1, characterized in that, The second adhesive structure and the third adhesive structure are connected and configured to move together along the first direction to adhere the adhesive to the welding area of ​​the tab and the adapter.

4. The adhesive applicator according to claim 3, characterized in that, The third adhesive structure is movably connected to the second adhesive structure along the second direction and is configured to move closer to or further away from the second adhesive structure along the second direction so that the curved surface presses the adhesive against the unwelded area of ​​the tab.

5. The adhesive applicator according to claim 4, characterized in that, The first drive member is configured to drive the curved surface to press the adhesive material against the unwelded area of ​​the tab when the second adhesive structure moves along a first direction.

6. The adhesive applicator according to claim 5, characterized in that, The first driving member is configured to drive the curved surface to press the adhesive material against the unwelded area of ​​the tab after the second adhesive structure moves along the first direction and stops at a preset position, wherein the preset position and the application position of the second adhesive structure are spaced apart in the first direction.

7. The adhesive applicator according to claim 3, characterized in that, The second adhesive structure and the third adhesive structure are fixedly connected, and the first driving member is used to drive the second adhesive structure and the third adhesive structure to move together along the second direction.

8. The adhesive applicator according to any one of claims 1-7, characterized in that, The adhesive applicator further includes a pressure detection structure and a controller. The pressure detection structure is connected to the third adhesive applicator and is used to detect the pressure between the curved surface and the adhesive. The controller is configured to control the first drive member to drive the third adhesive applicator to press against the adhesive in a second direction so that the pressure between the curved surface and the adhesive reaches a preset pressure.

9. The adhesive applicator according to claim 8, characterized in that, The pressure detection structure is embedded in the third adhesive structure and is flush with the curved surface.

10. The adhesive applicator according to claim 1, characterized in that, The curved surface extends along a third direction to the entire third adhesive structure, and the first direction, the second direction, and the third direction intersect each other.

11. The adhesive applicator according to claim 2, characterized in that, The adhesive applicator includes a second drive member connected to the first adhesive applicator structure and used to drive the first adhesive applicator structure to reciprocate along the first direction, and is configured to apply the adhesive to the main body portion before the third adhesive applicator structure is applied.

12. The adhesive applicator according to claim 3, characterized in that, The adhesive applicator includes a third driving member, which is connected to the second adhesive applicator structure or the third adhesive applicator structure, and is used to drive the second adhesive applicator structure and the third adhesive applicator structure to move together along the first direction.

13. The adhesive applicator according to claim 1, characterized in that, The number of the first negative pressure holes is multiple, and the multiple first negative pressure holes are arranged at intervals along a third direction, with the first direction, the second direction and the third direction intersecting each other; And / or, the number of the second negative pressure holes is multiple, and the multiple second negative pressure holes are arranged at intervals along a third direction, with the first direction, the second direction and the third direction intersecting each other.

14. A battery production system, characterized in that, It includes a welding apparatus and an adhesive applicator as described in any one of claims 1-13, wherein the welding apparatus is used to weld the tabs of the electrode assembly to the adapter.

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