Tab pasting mechanism and tab pasting device

Abstract

The utility model relates to a kind of tab gum pasting mechanism and tab gum pasting device, tab gum pasting mechanism includes: first gum pasting part, one end along first direction is first working surface, first working surface is equipped with multiple first air holes, multiple first air holes are used to attract and combine the one end of adhesive tape and the one end of adhesive tape is blown and brushed and pasted on the preset large face of battery main body;Second gum pasting part, one end of second gum pasting part along first direction is second working surface, second working surface is equipped with multiple second air holes, multiple second air holes are used to attract and combine the other end of adhesive tape and the other end of adhesive tape is blown and brushed and pasted on the preset surface of tab, second gum pasting part has third working surface close to first gum pasting part in second direction, third working surface is equipped with multiple third air holes, multiple third air holes are used to blow and brush and paste the middle section of adhesive tape on the tab lead-out face of battery main body.The utility model is helpful to the closer pasting of adhesive tape and tab root, solve the problem of tab root not pasting in prior art.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a tab attaching mechanism and a tab attaching device. Background Technology

[0002] In the manufacturing process of lithium batteries, the tab welding process is extremely important, as it directly affects the battery's electrical performance. Currently, the mainstream battery design is a multi-tab structure, which is welded together with the cover plate adapter through ultrasonic welding. After welding, in order to prevent welding dust from falling off and to prevent short circuits caused by the tabs being inserted backwards and contacting the battery cell, adhesive is often applied to protect the tabs and the battery cell.

[0003] However, if the tape does not adhere well to the base of the tab, the tab is prone to tearing after the cell undergoes transportation, flexible connection welding, and other processes, which may lead to problems such as low cell capacity and lithium plating. How to prevent tab tearing is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] Therefore, this utility model provides an electrode tab adhesive bonding mechanism and electrode tab adhesive bonding device to prevent electrode tab tearing.

[0005] To solve the above technical problems, this utility model provides an electrode tab adhesive mechanism, comprising: The first adhesive component has a first working surface at one end along the first direction. The first working surface is provided with a plurality of first air holes. The plurality of first air holes are used to attract one end of the adhesive tape and blow one end of the adhesive tape to adhere to the preset large surface of the battery cell body. The second adhesive component is disposed on one side of the first adhesive component along a second direction, the second direction being perpendicular to the first direction. One end of the second adhesive component along the first direction is a second working surface, the second working surface and the first working surface facing the same direction. The second working surface is provided with a plurality of second air holes, the plurality of second air holes being used to attract the other end of the adhesive tape and blow the other end of the adhesive tape onto a preset surface of the electrode tab. The second adhesive component has a third working surface in the second direction close to the first adhesive component. The area of ​​the third working surface close to the second working surface is provided with a plurality of third air holes, the plurality of third air holes being used to blow the middle section of the adhesive tape onto the electrode lead-out surface of the battery cell body.

[0006] Furthermore, both the first working surface and the second working surface are perpendicular to the first direction.

[0007] Furthermore, the third working surface forms a dihedral angle with the second working surface, and the dihedral angle is between 80 and 135 degrees.

[0008] Furthermore, the dihedral angle is between 90 and 120 degrees.

[0009] Furthermore, the first adhesive component is connected to the second adhesive component, and the first adhesive component and the second adhesive component can slide relative to each other along the first direction.

[0010] This utility model also provides an electrode tab adhesive device, comprising: The aforementioned tab adhesive mechanism; A drive mechanism is used to drive the first adhesive applicator and the second adhesive applicator to move along the first direction; A vacuuming mechanism is used to evacuate the first vent and the second vent; A blower mechanism is used to drive air into the first air hole, the second air hole, and the third air hole; In the first state, the first working surface is flush with the second working surface; In the second state, the first working surface and the second working surface are staggered and the plurality of third pores are exposed.

[0011] Furthermore, when the first working surface is flush with the second working surface, the area where the first vent is located is close to the area where the second vent is located. When the first working surface and the second working surface are staggered, the edge of the area where the third vent is located is close to the area where the first vent is located and the area where the second vent is located, respectively.

[0012] Furthermore, each of the first air holes is connected to the vacuuming mechanism and the blower mechanism, or some of the first air holes are connected to the vacuuming mechanism and the remaining first air holes are connected to the blower mechanism; Each of the second air holes is connected to the vacuuming mechanism and the blower mechanism, or some of the second air holes are connected to the vacuuming mechanism and the rest are connected to the blower mechanism; The plurality of third air holes are all connected to the blower mechanism.

[0013] Furthermore, the first vent and the second vent are connected to the same vacuuming mechanism or different vacuuming mechanisms.

[0014] Furthermore, the first air hole, the second air hole, and the third air hole are connected to the same blower mechanism or different blower mechanisms.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following advantages: The electrode tab bonding mechanism and electrode tab bonding device of this utility model have a first bonding component with a first working surface, a second bonding component with a second working surface and a third working surface, a first air hole on the first working surface for adsorbing and blowing one end of the tape, and a second air hole on the second working surface for adsorbing and blowing the other end of the tape. When the first bonding component and the second bonding component move in a misaligned manner, the third working surface applies a blowing force to the middle section of the tape, which helps the tape to adhere more tightly to the root of the electrode tab, solves the problem of the electrode tab not being adhered in the prior art, effectively prevents the electrode tab from tearing during cell transfer or welding, and improves battery safety and reliability. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of a battery cell assembly after adhesive application in the prior art; Figure 2 This is a schematic diagram of the unadhesive-coated battery cell assembly in this utility model; Figure 3 This is a schematic diagram of the electrode tab adhesive mechanism in this utility model; Figure 4 This is a schematic diagram of the adhesive application mechanism for the electrode ear in this utility model. Figure 5 This is a schematic diagram of the battery cell assembly after adhesive application in this utility model; Figure 6 This is a schematic diagram of the electrode tab adhesive device of this utility model.

[0018] Explanation of reference numerals in the accompanying drawings: 21. Battery cell body; 211. Pre-designed large surface; 212. Electrode lead-out surface; 22. Electrode; 221. Pre-designed surface; 222. Solder mark; 23. Adapter; 24. Adhesive tape; 3. Adhesive application mechanism for electrode tabs; 31. First adhesive application component; 311. First working surface; 312. First air hole; 32. Second adhesive application component; 321. Second working surface; 322. Second air hole; 323. Third working surface; 324. Third air hole; 4. Drive mechanism; 5. Vacuuming mechanism; 6. Blowering mechanism. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0020] See Figure 2The diagram shown is a schematic of the battery cell assembly without adhesive in this utility model.

[0021] The unadhesive-coated battery cell assembly includes a battery cell body 21, a tab 22, and an adapter 23. The battery cell body 21 has a pre-set large surface 211 on one side of its thickness direction and a tab lead-out surface 212 for leading out the tab 22. The tab 22 has a pre-set surface 221 on one side of its thickness direction. The pre-set large surface 211 of the battery cell body 21 and the pre-set surface 221 of the tab 22 face the same direction and are staggered. The adapter 23 is welded to another surface of the tab 22 opposite to the pre-set surface 221 and forms a solder mark 222.

[0022] In the above text, the main body 21 of the battery cell is mainly composed of positive electrode sheets, negative electrode sheets, and a separator, either stacked or wound together. The pre-designed large surface 211 refers to one of the relatively large, flat surfaces of the main body 21 that plays an important supporting or external contact role during battery assembly. The tab lead-out surface 212 refers to the surface of the main body 21 that extends outward from the tab 22. The thickness direction of the tab 22 is consistent with the thickness direction of the main body 21, but the thickness of the tab 22 is less than the thickness of the main body 21. Therefore, after the tab 22 is shaped, the pre-designed surface of the tab 22 is not flush with the pre-designed large surface 211 of the main body 21, resulting in a certain height difference and thus forming a staggered structure.

[0023] See Figures 3 to 5 The diagram shown is a schematic of the electrode tab adhesive mechanism in this utility model.

[0024] The tab attaching mechanism includes: The first adhesive part 31 has a first working surface 311 at one end along the first direction. The first working surface 311 is provided with a plurality of first air holes 312. The plurality of first air holes 312 are used to attract one end of the adhesive tape 24 and blow one end of the adhesive tape 24 onto the preset large surface 211 of the battery cell body 21. The second adhesive component 32 is disposed on one side of the first adhesive component 31 along the second direction, which is perpendicular to the first direction. One end of the second adhesive component 32 along the first direction is a second working surface 321. The second working surface 321 and the first working surface 311 face the same direction. The second working surface 321 is provided with a plurality of second air holes 322. The plurality of second air holes 322 are used to attract the other end of the adhesive tape 24 and blow and adhere the other end of the adhesive tape 24 to the preset surface 221 of the electrode tab 22. The second adhesive component 32 has a third working surface 323 in the second direction that is close to the first adhesive component 31. The area of ​​the third working surface 323 that is close to the second working surface 321 is provided with a plurality of third air holes 324. The plurality of third air holes 324 are used to blow and adhere the middle part of the adhesive tape 24 to the electrode lead-out surface 212 of the battery cell body 21.

[0025] In the above description, the first adhesive applicator 31 is used to attach one end of the tape 24 to the preset large surface 211 of the battery cell body 21, and the second adhesive applicator 32 is used to attach the other end of the tape 24 to the preset surface 221 of the electrode 22 and cover the solder mark 222, thus protecting the solder mark 222 of the electrode 22. The first vent 312 is an airflow channel located on the first working surface 311, which can switch between an intake mode and a blowing mode. The second vent 322 is an airflow channel located on the second working surface 321, which can switch between an intake mode and a blowing mode. The third vent 324 is an airflow channel located on the third working surface 323, which uses a blowing mode.

[0026] Specifically, the adhesive application process of the aforementioned tab-applying mechanism includes the following steps: S1. The electrode adhesive mechanism moves to the tape 24, with the first working surface 311 and the second working surface 321 facing the non-adhesive surface of the tape 24. S2, the first air hole 312 and the second air hole 322 are in the air suction mode, the first working surface 311 and the second working surface 321 approach the tape 24 along the first direction and respectively adsorb the two ends of the tape 24; S3. The electrode adhesive applicator moves to the unattached battery cell assembly, with the adhesive surfaces at both ends of the tape 24 facing the preset large surface 211 of the battery cell body 21 and the preset surface 221 of the electrode 22, respectively. S4. The first adhesive part 31 and the second adhesive part 32 approach the battery cell assembly simultaneously along the first direction until the end of the tape 24 adsorbed by the first working surface 311 is attached to the preset large surface 211 of the battery cell body 21. The first adhesive part 31 stops moving and the first air hole 312 switches to the blowing mode until the preset time is reached. S5. The second adhesive part 32 continues to approach the preset surface 221 of the tab 22 along the first direction. During this process, the third air hole 324 opens the blowing mode and makes the blowing air pressure of the third air hole 324 greater than the suction air pressure of the second air hole 322 until the end of the adhesive tape 24 adsorbed by the second working surface 321 is attached to the preset surface 221 of the tab 22. The third air hole 324 stops blowing air, and the second air hole 322 switches to the blowing mode until the preset time is reached.

[0027] Through the above technical solution, the first adhesive applicator is provided with a first working surface, and the second adhesive applicator is provided with a second working surface and a third working surface. The first air hole on the first working surface is used to attract and blow one end of the tape, and the second air hole on the second working surface is used to attract and blow the other end of the tape. When the first adhesive applicator and the second adhesive applicator move in a misaligned manner, the third working surface applies a blowing force to the middle section of the tape, which helps the tape to adhere more tightly to the root of the tab. This solves the problem of the tab not adhering properly in the prior art, effectively prevents the tab from tearing during cell transfer or welding, and improves battery safety and reliability.

[0028] In this embodiment, both the first working surface 311 and the second working surface 321 are perpendicular to the first direction.

[0029] In the above text, both the first working surface 311 and the second working surface 321 are perpendicular to the first direction. That is to say, the first working surface 311 is perpendicular to the direction of movement of the first adhesive applicator 31 when applying adhesive, and the second working surface 321 is perpendicular to the direction of movement of the second adhesive applicator 32 when applying adhesive.

[0030] Specifically, when the first working surface 311 is perpendicular to the first direction, the first vents 312 are evenly distributed along a plane perpendicular to the first direction, forming a uniform negative pressure area to adsorb the tape 24 during the vacuuming stage. When the first working surface 311 presses one end of the tape 24 onto the preset large surface 211 of the cell body 21, the force direction of the tape 24 is perpendicular to the preset large surface 211 of the cell body 21, making the bond between the tape 24 and the preset large surface 211 of the cell body 21 tighter. When the second working surface 321 is perpendicular to the first direction, the second vents 322 are evenly distributed along a plane perpendicular to the first direction, forming a uniform negative pressure area to adsorb the tape 24 during the vacuuming stage. When the second working surface 321 presses the other end of the tape 24 onto the preset surface 221 of the tab 22, the force direction of the tape 24 is perpendicular to the preset surface 221 of the tab 22, making the bond between the tape 24 and the preset surface 221 of the tab 22 tighter.

[0031] Through the above technical solution, the pressure of the first and second adhesive components on the tape and the blowing force of the first and second air holes on the tape are in the same direction, making the tape adhere more tightly.

[0032] In this embodiment, the third working surface 323 and the second working surface 321 form a dihedral angle, which is between 80 and 135 degrees. Preferably, the dihedral angle is between 90 and 120 degrees.

[0033] In the above text, the dihedral angle is a core concept in solid geometry describing the spatial angle formed when two planes intersect. Essentially, it is a geometric quantity used to quantify the degree of opening between two planes. A dihedral angle is defined as a spatial figure enclosed by a straight line (called an "edge") and two non-coincident planes (called "faces") emanating from that line. The second working face 321 and the third working face 323 mentioned above are the two faces of a dihedral angle.

[0034] Specifically, when two faces completely coincide (or in the extreme state of parallel planes intersecting), the resulting dihedral angle is a zero dihedral angle. When the plane angle is acute, the two faces are slightly open, and the dihedral angle is an acute dihedral angle. When the plane angle is right, the two faces intersect perpendicularly, and the dihedral angle is a right dihedral angle. When the plane angle is obtuse, the two faces are significantly open, and the dihedral angle is an obtuse dihedral angle. When the two faces are on the same plane, the dihedral angle is a planar dihedral angle.

[0035] The angle formed by the second working surface 321 and the third working surface 323 is a right dihedral angle or an obtuse dihedral angle. Specifically, the dihedral angle can be 80 degrees, 90 degrees, 100 degrees, 110 degrees, 120 degrees, 130 degrees, or 135 degrees. Whether the third vent 324 blows air directly onto the tab lead-out surface 212 of the battery cell body 21, or the third vent 324 is slightly deflected towards the side where the preset surface 221 is located, both ensure that the airflow from the third vent is directed towards the side where the tab lead-out surface 212 of the battery cell body 21 is located.

[0036] The above technical solution ensures that the airflow from the third vent matches the spatial position of the tab lead-out surface, and ensures that the middle section of the tape adheres to the tab lead-out surface of the battery cell body.

[0037] In this embodiment, the first adhesive component 31 and the second adhesive component 32 are connected, and the first adhesive component 31 and the second adhesive component 32 can slide relative to each other along the first direction.

[0038] In the above text, the first adhesive component 31 and the second adhesive component 32 are connected as a whole to facilitate subsequent connection with the drive mechanism. The first adhesive component 31 and the second adhesive component 32 slide relative to each other along the first direction to compensate for the height difference between the preset large surface 211 of the battery cell body 21 and the preset surface 221 of the electrode tab 22 during adhesive application.

[0039] Specifically, during tape pickup, the first adhesive applicator 31 and the second adhesive applicator 32 are in a first relative position, with the first working surface 311 and the second working surface 321 flush, facilitating tape pickup. After the first working surface 311 attaches one end of the tape 24 to the preset large surface 211 of the battery cell body 21, the second adhesive applicator 32 moves relative to the first adhesive applicator 31, allowing the second adhesive applicator 32 to continue approaching the preset surface of the tab 22, thereby attaching the other end of the tape 24 to the preset surface 221 of the tab 22. This technical solution ensures the tab applicator mechanism has good overall integrity, facilitating connection and control with other equipment.

[0040] See Figure 6 The diagram shown is a schematic of the electrode tab adhesive device of this utility model.

[0041] The tab attaching device includes: The aforementioned tab adhesive mechanism 3; Drive mechanism 4 is used to drive the above-mentioned tab adhesive mechanism 3 to move along the first direction. The vacuuming mechanism 5 is used to evacuate the plurality of first air holes 312 and the plurality of second air holes 322. The blower mechanism 6 is used to drive air into the plurality of first air holes 312, the plurality of second air holes 322 and the plurality of third air holes 324. In the first state, the first working surface 311 is flush with the second working surface 321. In the second state, the first working surface 311 and the second working surface 321 are staggered and the plurality of third vents 324 are exposed.

[0042] In the above text, the driving mechanism 4 refers to the power component that can drive the first adhesive applicator 31 and the second adhesive applicator 32 as a whole and each of them to move along the first direction. It can meet the needs of the first adhesive applicator 31 and the second adhesive applicator 32 to move closer to and further away from the battery cell assembly during the above adhesive application process. The vacuuming mechanism 5 actively extracts gas molecules from the target space (first vent 312 and second vent 322), so that the space forms and maintains a negative pressure environment lower than the external atmospheric pressure. The blowing mechanism 6 is used to send gas molecules to the target space (first vent 312, second vent 322 and third vent 324), so that the space forms and maintains a positive pressure environment higher than the external atmospheric pressure.

[0043] The tab-applying mechanism 3 switches back and forth between a first state and a second state. In the first state, the first working surface 311 and the second working surface 321 are on the same plane, which facilitates the simultaneous adsorption of both ends of the tape 24. In the second state, the first working surface 311 and the second working surface 321 form a height difference, which matches the height difference between the preset large surface 211 of the battery cell body 21 and the preset surface 221 of the tab 22, and exposes the third air hole 324 for air blowing.

[0044] Specifically, during the adhesive application process, the drive mechanism 4 drives the tab adhesive application mechanism 3 to move closer to and further away from the battery cell assembly, the vacuum mechanism 5 generates negative pressure in the first air hole 312 and the second air hole 322, and the blower mechanism 6 generates positive pressure in the first air hole 312, the second air hole 322 and the third air hole 324.

[0045] Through the above technical solution, the driving mechanism, vacuuming mechanism, and blowing mechanism work together with the tab adhesive applicator, enabling the tab adhesive applicator to move in space and perform tape adsorption and tape blowing.

[0046] In this embodiment, when the first working surface 311 and the second working surface 321 are flush, the area where the first air hole 312 is located is close to the area where the second air hole 322 is located. When the first working surface 311 and the second working surface 321 are staggered, the two ends of the area where the third vent 324 is located along the first direction are close to the area where the first vent 312 is located and the area where the second vent 322 is located, respectively.

[0047] In the above text, "the first working surface 311 and the second working surface 321 are flush" means that they are on the same plane. At this time, the area where the first vent 312 is located is adjacent to the area where the second vent 322 is located. When the first working surface 311 and the second working surface 321 are staggered, a height difference is generated between them. At this time, the area where the first vent 312 is located is adjacent to the area where the third vent 324 is located, and the area where the second vent 322 is located is adjacent to the area where the third vent 324 is located.

[0048] Specifically, when the first working surface 311 and the second working surface 321 are flush, the first air hole 312 and the second air hole 322 are connected to form a single piece, ensuring the adsorption effect on the tape. When the first working surface 311 and the second working surface 321 are staggered, the first air hole 312, the third air hole 324, and the second air hole 322 are connected to form a single piece, ensuring the blowing effect on the tape.

[0049] By using the above technical solution, and by setting the positional relationship of the first pore, the second pore, and the third pore under different states, the adsorption and blowing effects on the tape are guaranteed.

[0050] In this embodiment, each of the aforementioned first air holes 312 is connected to the aforementioned vacuuming mechanism 5 and the aforementioned blower mechanism 6. Each of the aforementioned plurality of second air holes 322 is connected to the aforementioned vacuuming mechanism 5 and the aforementioned blower mechanism 6; The aforementioned multiple third air holes 324 are connected to the aforementioned blower mechanism 6.

[0051] In the above description, multiple first air ports 312 are connected in parallel to a gas chamber. The gas chamber is connected to a vacuum mechanism 5 via a solenoid valve and to a blower mechanism 6 via another solenoid valve. When the first air port 312 is in suction mode, the solenoid valve between the gas chamber and the vacuum mechanism 5 is open, and the solenoid valve between the gas chamber and the blower mechanism 6 is closed. When the first air port 312 is in blowing mode, the solenoid valve between the gas chamber and the blower mechanism 6 is open, and the solenoid valve between the gas chamber and the vacuum mechanism 5 is closed. Similarly, multiple second air ports 322 are connected in parallel to another gas chamber. The gas chamber is connected to the vacuum mechanism 5 via a solenoid valve and to the blower mechanism 6 via another solenoid valve. When the second air port 322 is in suction mode, the solenoid valve between the gas chamber and the vacuum mechanism 5 is open, and the solenoid valve between the gas chamber and the blower mechanism 6 is closed. When the second air port 322 is in blowing mode, the solenoid valve between the gas chamber and the blower mechanism 6 is open, and the solenoid valve between the gas chamber and the vacuum mechanism 5 is closed. Multiple third air ports 324 are connected in parallel to another gas chamber, and the gas chamber is connected to the blower mechanism 6 via a solenoid valve. When the third air port 324 is in the blowing mode, the solenoid valve between the air chamber and the blowing mechanism 6 is opened, and the solenoid valve between the air chamber and the vacuuming mechanism 5 is closed.

[0052] With the above technical solution, the first pore, the second pore, and the third pore all participate in the work during vacuuming and blowing, ensuring the vacuum adsorption force, vacuum adsorption area, blowing force, and blowing area.

[0053] In other embodiments, some of the first air holes may be connected to a vacuuming mechanism, and the remaining first air holes may be connected to a blower mechanism. Some of the second air holes may be connected to a vacuuming mechanism, and the remaining second air holes may be connected to a blower mechanism.

[0054] In this embodiment, the plurality of first air holes 312 and the plurality of second air holes 322 are connected to the same vacuuming mechanism 5.

[0055] In the above text, the first air hole 312 of the first adhesive part 31 and the second air hole 322 of the second adhesive part 32 are connected in parallel to the same vacuum mechanism 5 through pipelines. Solenoid valves are installed on their respective pipelines, and the opening and closing of the solenoid valves are controlled to control whether the first air hole 312 and the second air hole 322 are in suction mode.

[0056] Specifically, when the first air port 312 is in the suction mode, the solenoid valve on the pipeline between the first air port 312 and the vacuum mechanism 5 is opened; when the second air port 322 is in the blowing mode, the solenoid valve on the pipeline between the second air port 322 and the vacuum mechanism 5 is opened.

[0057] The above technical solution allows for vacuuming of the first and second air holes using only one vacuuming mechanism, saving equipment and reducing costs.

[0058] In other embodiments, the first air hole and the second air hole are each connected to an independent vacuuming mechanism, and the first air hole and the second air hole are controlled to open the suction mode by controlling the start and stop of the vacuuming mechanism.

[0059] In this embodiment, the plurality of first air holes 312, the plurality of second air holes 322 and the third air hole 324 are connected in parallel to the same blower mechanism 6.

[0060] In the above text, the first air hole 312 of the first adhesive part 31 and the second air hole 322 and the third air hole 324 of the second adhesive part 32 are connected in parallel to the same blower mechanism 6 through pipelines. Solenoid valves are installed on their respective pipelines. The opening and closing of the solenoid valves are controlled to control whether the first air hole 312, the second air hole 322 and the third air hole 324 are in the blowing mode.

[0061] Specifically, when the first air port 312 is in the blowing mode, the solenoid valve on the pipeline between the first air port 312 and the blower mechanism 6 is opened; when the second air port 322 is in the blowing mode, the solenoid valve on the pipeline between the second air port 322 and the blower mechanism 6 is opened; and when the third air port 324 is in the blowing mode, the solenoid valve on the pipeline between the third air port 324 and the blower mechanism 6 is opened.

[0062] The above technical solution uses only one blower mechanism to blow air through the first, second, and third air holes, which can save equipment and reduce costs.

[0063] In other embodiments, the first air hole, the second air hole, and the third air hole are each connected to an independent blower mechanism, and the blower mechanism is controlled to control whether the first air hole, the second air hole, and the third air hole are in the blowing mode.

[0064] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A tab-attaching mechanism, characterized in that, include: The first adhesive part (31) has a first working surface (311) at one end along the first direction. The first working surface (311) is provided with a plurality of first air holes (312). The plurality of first air holes (312) are used to attract one end of the adhesive tape (24) and blow one end of the adhesive tape (24) onto the preset large surface (211) of the battery cell body (21). The second adhesive component (32) is disposed on one side of the first adhesive component (31) along a second direction, the second direction being perpendicular to the first direction. One end of the second adhesive component (32) along the first direction is a second working surface (321), the second working surface (321) and the first working surface (311) facing the same direction. The second working surface (321) is provided with a plurality of second air holes (322), the plurality of second air holes (322) being used to attract the other end of the tape (24) and to hold the tape (24) together. 4) The other end is blown and attached to the preset surface (221) of the tab (22). The second adhesive part (32) has a third working surface (323) close to the first adhesive part (31) in the second direction. The third working surface (323) is provided with a plurality of third air holes (324) in the area close to the second working surface (321). The plurality of third air holes (324) are used to blow and attach the middle part of the tape (24) to the tab lead-out surface (212) of the cell body (21).

2. The electrode tab adhesive mechanism according to claim 1, characterized in that, Both the first working surface (311) and the second working surface (321) are perpendicular to the first direction.

3. The electrode tab adhesive mechanism according to claim 1, characterized in that, The third working surface (323) and the second working surface (321) form a dihedral angle, which is between 90 and 135 degrees.

4. The tab attaching mechanism according to claim 3, characterized in that, The dihedral angle is between 90 and 120 degrees.

5. The tab attaching mechanism according to claim 1, characterized in that, The first adhesive component (31) is connected to the second adhesive component (32), and the first adhesive component (31) and the second adhesive component (32) can slide relative to each other along the first direction.

6. A tab-adhesive bonding device, characterized in that, include: The tab adhesive mechanism (3) according to any one of claims 1 to 5; The driving mechanism (4) is used to drive the first adhesive applicator (31) and the second adhesive applicator (32) to move along the first direction; A vacuuming mechanism (5) is used to evacuate the first air hole (312) and the second air hole (322); A blower mechanism (6) is used to drive air into the first air hole (312), the second air hole (322) and the third air hole (324). In the first state, the first working surface (311) is flush with the second working surface (321); In the second state, the first working surface (311) and the second working surface (321) are staggered and the plurality of third vents (324) are exposed.

7. The tab-applying device according to claim 6, characterized in that, When the first working surface (311) is flush with the second working surface (321), the area where the first air hole (312) is located is close to the area where the second air hole (322) is located. When the first working surface (311) and the second working surface (321) are staggered, the edge of the area where the third air hole (324) is located is close to the area where the first air hole (312) is located and the area where the second air hole (322) is located, respectively.

8. The tab-applying device according to claim 6, characterized in that, Each of the first air holes (312) is connected to the vacuuming mechanism (5) and the blower mechanism (6), or some of the first air holes (312) are connected to the vacuuming mechanism (5), and the remaining first air holes (312) are connected to the blower mechanism; Each of the second air holes (322) is connected to the vacuuming mechanism (5) and the blower mechanism (6), or some of the second air holes (322) are connected to the vacuuming mechanism (5), and the remaining second air holes (322) are connected to the blower mechanism; The plurality of third air holes (324) are all connected to the blower mechanism (6).

9. The tab-applying device according to claim 6, characterized in that, The first vent (312) and the second vent (322) are connected to the same vacuuming mechanism (5) or different vacuuming mechanisms (5).

10. The tab-applying device according to claim 6, characterized in that, The first air hole (312), the second air hole (322) and the third air hole (324) are connected to the same blower mechanism (6) or different blower mechanisms (6).

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