Tab welding device

Abstract

The application relates to a tab welding device applied to the field of battery manufacturing, which comprises a supporting module for supporting a battery cell from the bottom, and a pressing module for welding tabs of the battery cell from the top, wherein a smoothing assembly is arranged on the pressing module and used for smoothing the tabs before the pressing module welds the tabs. The tab welding device can improve tab welding efficiency.

Description

Technical Field

[0001] This application relates to the technical field of battery manufacturing, and in particular to a tab welding device. Background Technology

[0002] In the manufacturing process of pouch battery modules, welding is required to connect the positive and negative tabs of multiple pouch cells. To ensure the welding effect, multiple cells must first be installed in the welding device before welding; then the tabs of the cells are pressed together by the welding head to ensure a tighter contact with the busbar; only then can welding be performed.

[0003] In related technologies, because the tabs of the battery cell are relatively soft, they usually need to be smoothed manually before being pressed down with a welding head to achieve a better welding effect. The downtime of the welding equipment in this step is relatively long, especially for soft-pack battery cells with tabs on the same side. Because the tabs are close together, in addition to smoothing the tabs manually, it is also easy for the welding head to touch the positive and negative tabs at the same time when it is pressed down, causing a short circuit in the soft-pack battery cell, resulting in product abnormalities and abnormalities in subsequent inspection processes, resulting in low welding efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide a tab welding device that can improve the efficiency of tab welding, addressing the problems in the existing technology.

[0005] This application provides a tab welding device, comprising:

[0006] Support module, used to support the battery cells;

[0007] A pressing module is used to press the battery cell onto the support module;

[0008] The pressing module is equipped with a smoothing component for smoothing the tabs of the battery cell so that the tabs can be soldered.

[0009] In one embodiment, the support module includes:

[0010] Support plate;

[0011] A support block is slidably connected to a support plate, and a support area is recessed on the support block.

[0012] The partition component is detachably installed in the support area.

[0013] In one embodiment, the separating component includes:

[0014] A partition block, on which an installation groove is provided;

[0015] The divider is detachably installed in the mounting groove, with its upper surface protruding from the upper surface of the support block.

[0016] In one embodiment, the support module further includes an adjustment component, which is detachably disposed within the support area.

[0017] In one embodiment, the pressing module includes: a driving component; and a pressing head connected to the driving component, wherein a smoothing component is mounted on the pressing head.

[0018] In one embodiment, the pressing module further includes a connector, the connector including a pressing head connecting part and a drive connecting part connected to each other, the pressing head connecting part being connected to the pressing head, the drive connecting part being connected to the drive assembly, and the pressing head connecting part being non-perpendicular to the bottom surface of the pressing head.

[0019] In one embodiment, the smoothing component is an air supply component, which includes: an air outlet, the two ends of which are respectively connected to a first fixing member; the first fixing member is installed at both ends of the pressure head.

[0020] In one embodiment, the smoothing component is a roller assembly, which includes: a roller; both ends of the roller are respectively connected to a second fixing member; the second fixing member is installed at both ends of the pressure head.

[0021] In one embodiment, a first adhesive layer is provided on the bottom surface of the pressure head, and a second adhesive layer is covered on the roller.

[0022] In one embodiment, the electrode welding device further includes:

[0023] The mounting base is installed on the support plate;

[0024] Clamping device, which is fixedly installed on the mounting base;

[0025] The pressure plate is used to press the battery cell body together with the clamping device.

[0026] The aforementioned tab welding device includes: a support module for supporting the battery cell; and a pressing module for pressing the battery cell onto the support module. The pressing module is equipped with a smoothing component for smoothing the tabs of the battery cell to facilitate welding. During the welding process of the battery cell's tabs, by providing the smoothing component on the pressing module, the smoothing and pressing of the tabs can be performed simultaneously, avoiding the need for manual tab smoothing. Furthermore, the smoothing component only acts on the first or second tab to be welded on the pressing module, ensuring that adjacent first and second tabs are at different horizontal positions, preventing interference with tabs outside the current welding area, and effectively improving the reliability and efficiency of the welding process. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the electrode welding device in one embodiment;

[0028] Figure 2 This is an exploded view of the electrode welding device in one embodiment;

[0029] Figure 3 This is an exploded view of the support module in one embodiment;

[0030] Figure 4 This is a schematic diagram of the support module in one embodiment;

[0031] Figure 5 This is a front view of the pressure holding module in one embodiment;

[0032] Figure 6 This is a side view of the pressure-holding module in one embodiment;

[0033] Figure 7 This is a schematic diagram of the smoothing component in the pressing module in one embodiment;

[0034] Figure 8 This is a schematic diagram of the smoothing component in the pressing module in another embodiment;

[0035] Attached image annotations:

[0036] 10. Support module; 11. Mounting plate; 111. Receiving groove; 12. Support plate; 121. Slide rail; 131. Support block; 1310. Support area; 1311. First welding area; 1312. Second welding area; 1313. Third welding area; 1314. Slide rail; 132. Adjustment component; 133. Separator component; 1331. Separator strip; 1332. Separator block; 13321. Mounting groove; 14. Holding module; 14 1. Smoothing component; 1410. Air supply component; 1411. Air outlet; 1412. First fixing component; 1413. Roller assembly; 1414. Roller; 1415. Second fixing component; 142. Drive assembly; 143. Pressure head; 1431. First adhesive layer; 144. Connector; 151. Fixing base; 152. Clamp; 16. Pressure plate; 17. Copper gasket; 200. Battery cell; 201. First tab; 202. Second tab. Detailed Implementation

[0037] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0038] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing 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, and therefore should not be construed as a limitation of this application.

[0039] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0042] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0043] The following is in conjunction with the appendix Figure 1-8 The embodiments of this application will be described in further detail.

[0044] Figure 1 A schematic diagram of the electrode welding device in one embodiment of this application is shown; Figure 2 An exploded view of a tab welding apparatus according to an embodiment of this application is shown.

[0045] See Figure 1 An embodiment of this application provides a tab welding device, comprising: a support module 10 for supporting a battery cell 200; and a pressing module 14 for pressing the battery cell 200 onto the support module 10; wherein the pressing module 14 is provided with a smoothing component 141 for smoothing the tabs of the battery cell 200 so that the tabs can be welded.

[0046] The battery cell 200 in this application is a soft-pack battery cell with tabs on the same side. The tabs of the battery cell 200 include a first tab 201 and a second tab 202, and the first tab 201 and the second tab 202 are located on the same side of the battery cell 200. During the soldering process of the tabs of the battery cell 200, the battery cell 200 is placed on the support module 10. First, the holding module 14 is brought close to the first tab 201. As the holding module 14 approaches the first tab 201, the smoothing component 141 is used to smooth the first tab 201. As the holding module 14 continues to approach the first tab 201, the holding module 14 and the support module 10 press the first tab 201 tightly, thereby completing the soldering of the first tab 201. After the first tab 201 is soldered, the holding module 14 is brought close to the second tab 202, and the second tab 202 is smoothed, pressed, and soldered. The first electrode 201 can be a positive electrode and the second electrode 202 can be a negative electrode, or the first electrode 201 can be a negative electrode and the second electrode 202 can be a positive electrode.

[0047] The electrode welding device provided in the above embodiments can simultaneously smooth and press the electrode during the welding process of the electrode of the battery cell 200 by setting a smoothing component 141 on the holding module 14, avoiding the process of manually smoothing the electrode. Furthermore, the smoothing component 141 only acts on the first electrode 201 or the second electrode 202 that needs to be welded on the holding module 14, so that the adjacent first electrode 201 and second electrode 202 are in different horizontal positions, preventing the electrode outside the current welding area from being affected, and effectively improving the reliability and efficiency of the welding process.

[0048] Figure 3 An exploded view of the support module 10 in one embodiment of this application is shown; Figure 4 A schematic diagram of the structure of the support module 10 in one embodiment of this application is shown.

[0049] See Figures 1 to 4 In an exemplary embodiment, the support module 10 in the provided electrode welding device includes: a support plate 12; a support block 131 slidably connected to the support plate 12, the support block 131 having a support area 1310 recessed thereon; and a separator component 133 detachably installed in the support area 1310.

[0050] Optionally, the electrode welding device also includes a mounting plate 11, on which a support plate 12 is detachably mounted.

[0051] Optionally, the support plate 12 is provided with slide rails 121 on both sides, and the support block 131 is provided with a slide groove 1314 at the bottom. The support block 131 is slidably connected to the slide rails 121 of the support plate 12 through the slide groove 1314, so that the support block 131 can slide on the support plate 12 along the extension direction of the slide rails 121.

[0052] The separator assembly 133 is detachably installed in the support area 1310. When the separator assembly 133 is installed in the support area 1310, the support area 1310 is divided into a first welding area 1311 and a second welding area 1312. When the separator assembly 133 is removed from the support area 1310, a third welding area 1313 is formed within the support area 1310. The first welding area 1311 and the second welding area 1312 are used for welding the first tab 201 and the second tab 202 to the workpiece to be welded, such as a busbar, respectively. When the separator assembly 133 is removed from the support area 1310, the first welding area 1311 and the second welding area 1312 are connected to form the third welding area 1313, which is used for welding the first tab 201 and the second tab 202 to larger electronic devices, such as FPC (Flexible Printed Circuit) or PCB (Printed Circuit Board).

[0053] Optionally, the partition assembly 133 includes: a partition block 1332, on which an installation groove 13321 is provided; and a partition strip 1331, which is detachably disposed in the installation groove 13321, with the upper surface of the partition strip 1331 protruding from the upper surface of the support block 131.

[0054] The extending direction of the mounting groove 13321 is perpendicular to the arrangement direction of the first electrode tab 201 and the second electrode tab 202. Figure 4 From the perspective of [the location], the X direction is the arrangement direction of the first electrode 201 and the second electrode 202, the Y direction is the extension direction of the mounting groove 13321 of the partition block 1332, and the X direction is perpendicular to the Y direction. For the support area 1310 on the support block 131, the X direction is the length direction of the support area 1310, and the Y direction is the width direction of the support area 1310.

[0055] Optionally, the length of the separator 1332 along the Y direction is equal to the width of the support area 1310, and the length of the separator 1331 along the Y direction is greater than or equal to the width of the support area 1310.

[0056] When the separator block 1332 is installed in the support area 1310, the upper surface of the separator strip 1331 protrudes beyond the upper surface of the support block 131. Thus, when the pressing module 14 deviates in position during downward pressure, the pressing module 14 will first press against the separator strip 1331 of the separator assembly 133, thereby avoiding the risk of a short circuit caused by the pressing module 14 simultaneously contacting the first tab 201 and the second tab 202.

[0057] Optionally, the height of the separator 1331 can be adjusted to accommodate welding of battery cells 200 tabs of varying thicknesses and quantities.

[0058] In one possible implementation, the support module 10 in the provided electrode welding device further includes an adjustment component 132, which is detachably disposed within the support area 1310.

[0059] The thickness of the adjustment component 132 is adjustable, so that the surface of the adjustment component 132 can be higher or lower than the surface of the support block 131.

[0060] Optionally, the adjustment component 132 may include: a first adjustment block, a second adjustment block, and a third adjustment block. The first adjustment block may be disposed in the first welding area 1311 for adjusting the depth of the first welding area 1311; the second adjustment block may be disposed in the second welding area 1312 for adjusting the depth of the second welding area 1312; and the third adjustment block may be disposed in the third welding area 1313 for adjusting the depth of the third welding area 1313.

[0061] Optionally, the support module 10 also includes a copper pad 17, which is placed in the first welding area 1311 and the second welding area 1312 to place at the bottom of the first tab 201 and the second tab 202 during the welding process to prevent burn-through.

[0062] In this embodiment, the depth of the first welding area 1311, the second welding area 1312 and the third welding area 1313 are adjusted by the adjustment component 132, which can be used for welding battery cells 200 of different thicknesses and quantities, or for welding busbars / electronic devices of different thicknesses.

[0063] Figures 5 to 8 A schematic diagram of the structure of the pressing module 14 provided in one embodiment of this application is shown.

[0064] See Figure 5 and Figure 8 In one embodiment of this application, the clamping module 14 in the electrode welding device includes: a driving component 142; a clamping head 143 connected to the driving component 142, and a smoothing component 141 mounted on the clamping head 143.

[0065] Optionally, the drive assembly 142 may include a guide structure, a reset structure, and a drive connection structure. The guide structure may be a guide rod to ensure the drive assembly 142 remains stable and precise during movement, preventing lateral deviation. The reset structure may be a spring, located outside the guide rod, to return the drive assembly 142 to its initial position without external force. The drive connection mechanism is used to connect to a drive source to transmit the driving force of the drive source to the entire holding module 14. The drive source may be a cylinder, a motor, or a hydraulic device. The drive assembly 142 may also include a fixed frame, which is movably connected to other components in the electrode welding device to ensure the stability of the drive assembly 142.

[0066] During the welding process of the electrode tabs, the smoothing component 141 can move synchronously with the pressure head 143 under the drive of the drive component 142. The drive component 142 drives the pressure head 143 and the smoothing component 141 to approach the first electrode tab 201 and the second electrode tab 202 placed on the support module 10. The smoothing component 141 smooths the first electrode tab 201 or the second electrode tab 202 to be welded in the current welding process. The pressure head 143 presses the smoothed first electrode tab 201 or the second electrode tab 202 to complete the welding.

[0067] In one possible implementation, the clamping module 14 in the provided electrode welding device further includes a connector 144, which includes a clamping head connector and a drive connector connected to each other. The clamping head connector is connected to the clamping head 143, and the drive connector is connected to the drive assembly 142. The clamping head connector and the bottom surface of the clamping head 143 are not perpendicular.

[0068] Optionally, the angle between the connecting part in the connector 144 and the bottom surface of the pressure head 143 is less than 90°.

[0069] The connecting part is the portion between the first and second ends of the connector 144. The angle design of the connecting part can leave a certain space between the pressure head 143 and the drive assembly 142. In this way, the pressure head 143 can better contact the electrode tab during the welding process, avoiding interference between the pressure head 143 and the electrode tab or the components on the workpiece to be welded to the electrode tab.

[0070] In one possible implementation, see [reference] Figure 7 The smoothing component 141 is an air supply component 1410. The air supply component 1410 includes an air outlet 1411, and the two ends of the air outlet 1411 are respectively connected to a first fixing member 1412. The first fixing member 1412 is installed at both ends of the pressure head 143.

[0071] During the welding process, the air outlet 1411 in the air supply assembly 1410 is connected to an external air source. The external air source introduces airflow into the air outlet 1411 through a pipeline. The air outlet 1411 sprays the airflow directionally onto the surface of the first tab 201 or the second tab 202 to be welded, applying uniform gas pressure to the first tab 201 or the second tab 202. Through the force of the airflow, wrinkles, warping or minor unevenness on the surface of the first tab 201 or the second tab 202 will be smoothed out, avoiding poor or uneven welding contact due to warping. In this embodiment, the air supply component 1410 is used as the smoothing component 141. The airflow is used to smooth the first tab 201 or the second tab 202. The airflow can act on the entire surface of the tab, rather than a local area, to ensure that the tab is flat before welding and improve the welding quality. The airflow pressure and angle can be adjusted according to different tab sizes and materials to meet the welding needs of various battery cells 200. Furthermore, the non-contact smoothing method can avoid mechanical contact from damaging the tab, protecting the integrity and surface condition of the tab, thereby improving the welding quality.

[0072] In one possible implementation, see [reference] Figure 8 The smoothing component 141 is a roller assembly 1413, which includes a roller 1414. Both ends of the roller 1414 are respectively connected to a second fixing member 1415. The second fixing member 1415 is installed at both ends of the pressure head 143.

[0073] During the welding process, the drive assembly 142 drives the roller assembly 1413 to move above the first tab 201 or the second tab 202 to be welded in the current welding process. The roller 1414 is controlled to contact the upper surface of the first tab 201 or the second tab 202 with a certain pressure and roll along the surface of the first tab 201 or the second tab 202. During the rolling process, the roller 1414 applies a uniform force to the surface of the first tab 201 or the second tab 202 to smooth out the wrinkles or warped parts.

[0074] In this embodiment, the roller assembly 1413 is used as the smoothing assembly 141. Through the rolling action of the roller 1414, the surface of the electrode tab is smoothly and evenly smoothed. The roller assembly 1413 has a simple mechanical structure, high reliability, and is easy to maintain and adjust.

[0075] In one possible implementation, the bottom surface of the pressure head 143 is provided with a first adhesive layer 1431, and the roller 1414 is covered with a second adhesive layer.

[0076] Optionally, when the pressing module 14 is pressed against the first tab 201 and / or the second tab 202, the compression of the second adhesive layer is greater than that of the first adhesive layer 1431. The first adhesive layer 1431 ensures the stability of the pressing head 143 against the first tab 201 and / or the second tab 202, while preventing insufficient contact force between the pressing head 143 and the tab during welding, thus avoiding welding instability. The second adhesive layer on the roller 1414 has a large compression, which can play a certain role in shock absorption when the roller 1414 rolls, reducing friction and vibration damage to the tab surface, and better adapting to any minor wrinkles that may exist on the tab surface. This allows the roller 1414 to dynamically adapt to changes in the shape of the tab surface during rolling, improving the smoothing effect.

[0077] In one possible implementation, the welding device further includes: a fixing seat 151 mounted on a support plate 12; a clamping device 152 fixedly mounted on the fixing seat 151; and a pressure plate 16 for pressing against the body of the battery cell 200 under the action of the clamping device 152.

[0078] When the electrode welding device is in the welding state, the pressure plate 16 is pressed onto the body of the battery cell 200 by the clamp 152. When the electrode welding device is in the non-welding state, the pressure plate 16 can be accommodated in the receiving groove 111. Optionally, the receiving groove 111 can be formed at the bottom of the mounting plate 11 or in the mounting plate 11.

[0079] In this embodiment, the clamp 152 is used to press the body of the battery cell 200, so that the battery cell 200 to be welded remains stable during the welding process, avoiding the position of the tabs from shifting, reducing the tensile and torsional stress on the tabs during the welding process, thereby improving the welding quality. The clamp 152 is used to clamp the body of the battery cell 200, ensuring that the stacked battery cells 200 are arranged neatly, and that the tabs of each battery cell 200 are aligned, avoiding poor welding contact, uneven distribution of welding heat, or the tabs from separating from the welding substrate, which would ultimately cause defects such as incomplete welding and insufficient weld strength, thereby improving the welding strength and reliability.

[0080] Combination Figures 1 to 8 The electrode welding apparatus in one embodiment of this application includes:

[0081] A support module 10 is used to support the battery cell 200. The support module 10 includes a support plate 12, a support block 131, a separator component 133, and an adjustment component 132. The support block 131 is slidably connected to the support plate 12, and a support area 1310 is recessed on the support block 131. The separator component 133 is detachably installed in the support area 1310 and includes a separator block 1332 with a mounting groove 13321; a separator strip 1331 is detachably disposed in the mounting groove 13321, and the upper surface of the separator strip 1331 protrudes from the upper surface of the support block 131; and the adjustment component 132 is detachably disposed within the support area 1310.

[0082] The pressing module 14 is used to press the battery cell 200 onto the support module 10. The pressing module 14 includes a drive assembly 142, a pressing head 143, and a connector 144. The pressing head 143 is connected to the drive assembly 142, and a smoothing assembly 141 is mounted on the pressing head 143. The connector 144 includes a pressing head connecting part and a drive connecting part that are connected to each other. The pressing head connecting part is connected to the pressing head 143, and the drive connecting part is connected to the drive assembly 142. The pressing head connecting part and the bottom surface of the pressing head 143 are not perpendicular.

[0083] A fixed base 151 is mounted on a support plate 12; a clamp 152 is fixedly mounted on the fixed base 151; and a pressure plate 16 is used to press against the body of the battery cell 200 under the action of the clamp 152.

[0084] The pressing module 14 is provided with a smoothing component 141, which is used to smooth the tabs of the battery cell 200 so that the tabs can be soldered.

[0085] In some embodiments, the smoothing component 141 is an air supply component 1410, which includes an air outlet 1411, with both ends of the air outlet 1411 connected to a first fixing member 1412; the first fixing member 1412 is installed at both ends of the pressure head 143.

[0086] In some embodiments, the smoothing component 141 is a roller assembly 1413, which includes a roller 1414; both ends of the roller 1414 are respectively connected to a second fixing member 1415; the second fixing member 1415 is mounted on both ends of the pressure head 143. The bottom surface of the pressure head 143 is provided with a first adhesive layer 1431, and the roller 1414 is covered with a second adhesive layer.

[0087] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0088] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A tab welding device, characterized in that, The electrode welding device includes: Support module, used to support the battery cells; A pressing module is used to press the battery cell onto the support module; The pressing module is equipped with a smoothing component for smoothing the tabs of the battery cell so that the tabs can be soldered.

2. The electrode tab welding device according to claim 1, characterized in that, The support module includes: Support plate; A support block is slidably connected to the support plate, and a support area is recessed on the support block; The partition component is detachably mounted to the support area.

3. The electrode welding device according to claim 2, characterized in that, The separation component includes: A partition block, wherein an installation groove is provided on the partition block; A separator strip is detachably disposed in the mounting groove, and the upper surface of the separator strip protrudes from the upper surface of the support block.

4. The electrode welding device according to claim 2, characterized in that, The support module further includes an adjustment component, which is detachably disposed within the support area.

5. The electrode welding device according to claim 1, characterized in that, The pressing module includes: a driving component; and a pressing head connected to the driving component, wherein the smoothing component is mounted on the pressing head.

6. The electrode welding apparatus according to claim 5, characterized in that, The pressing module further includes a connector, which includes a pressing head connecting part and a driving connecting part that are connected to each other. The pressing head connecting part is connected to the pressing head, and the driving connecting part is connected to the driving assembly. The pressing head connecting part is not perpendicular to the bottom surface of the pressing head.

7. The electrode welding apparatus according to claim 5, characterized in that, The smoothing component is an air supply component, which includes an air outlet, with each end of the air outlet connected to a first fixing member; the first fixing member is installed at both ends of the pressure head.

8. The electrode welding apparatus according to claim 5, characterized in that, The smoothing assembly is a roller assembly, which includes: a roller; both ends of the roller are respectively connected to a second fixing member; the second fixing member is installed at both ends of the pressure head.

9. The electrode welding apparatus according to claim 8, characterized in that, The bottom surface of the pressure head is provided with a first adhesive layer, and the roller is covered with a second adhesive layer.

10. The electrode tab welding apparatus according to claim 2, characterized in that, The electrode welding device further includes: A fixing seat is mounted on the support plate; A clamping device, which is fixedly installed on the fixed base; The pressure plate is used to press against the body of the battery cell under the action of the clamp.

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