Tab pasting mechanism and tab pasting device

Abstract

The utility model relates to a kind of tab gumming mechanism and tab gumming device, comprising: first gumming part, with multiple first air holes, first air hole is used to attract the one end of adhesive tape and the one end of adhesive tape is blown and is adhered on the big face of the battery body of battery;Second gumming part, be located in the side of first gumming part along second direction and can be moved along first direction relative to first gumming part, second gumming part is equipped with multiple second air holes, multiple third air holes and recess, second air hole is located in the side of recess along second direction, third air hole is located in the other side of recess along second direction, second air hole and third air hole are used to attract the other end of adhesive tape and the other end of adhesive tape is blown and is adhered on the surface of tab.The utility model reduces the area of protruding area by setting recess, protruding area is directly opposite tab root, improve the adhesion of adhesive tape and tab root, prevent pulling weld mark edge, prevent tab cracking.

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 to the cover plate adapter plate by ultrasonic welding. After welding, adhesive is often applied to the tabs to prevent welding dust from falling off and to protect the electrode plates.

[0003] Chinese utility model patent CN220821668U discloses a Z-shaped adhesive applicator for electrode tabs, comprising a first adhesive applicator and a second adhesive applicator. The first adhesive applicator selectively moves towards the electrode tab for adhesive application. A first negative pressure hole and a positive pressure hole are provided on the side near the electrode tab. A negative pressure airflow selectively flows through the first negative pressure hole to absorb the adhesive tape, and a positive pressure airflow selectively flows through the positive pressure hole. After the first adhesive applicator is a certain distance from the electrode tab, its movement is stopped, and the adhesive tape absorption stops. The positive pressure hole is then adjusted to blow the adhesive tape towards the electrode tab, causing the tape to be blown and adhered to the electrode tab surface, thus completing the Z-shaped adhesive application process.

[0004] In the actual manufacturing process, the tape and the electrode tab do not adhere well, such as... Figure 1 As shown, one end of the tape 11 is attached to the large surface 121 of the battery cell body 12, and the other end is attached to the solder mark 131 formed by welding the tab 13 and the adapter piece 14. The middle section 111 of the tape 11 is stretched diagonally and is not attached to the root 132 of the tab 13. After the battery cell undergoes transportation, flexible connection welding, and other operations, the tape is prone to pulling on the edge of the solder mark, causing the tab to crack, which in turn leads to problems such as low battery capacity and lithium plating. How to prevent the tab from cracking is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] Therefore, this utility model provides a tab-applying mechanism and a tab-applying device, which improves the adhesion between the tape and the base of the tab, prevents pulling on the edge of the solder joint, and prevents the tab from cracking.

[0006] To solve the above-mentioned technical problems, this utility model provides an electrode tab adhesive mechanism, comprising: The first adhesive component has a first end face in a first direction. The first end face 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 large surface of the battery cell body. The second adhesive component is disposed on one side of the first adhesive component along the second direction and is movable relative to the first adhesive component along the first direction. The second direction is perpendicular to the first direction. The second adhesive component has a second end face facing the same direction as the first end face. The second end face is provided with a plurality of second air holes, a plurality of third air holes, and a groove. The plurality of second air holes are located on one side of the groove along the second direction, and the plurality of third air holes are located on the other side of the groove along the second direction. The plurality of second air holes and the plurality of third air holes are used to attract the other end of the adhesive tape and blow the other end of the adhesive tape to adhere to the surface of the tab.

[0007] Furthermore, the groove is provided with a plurality of fourth air holes, which are used to attract and hold the adhesive tape.

[0008] Furthermore, the groove is a rectangular groove, an arc-shaped groove, or a U-shaped groove.

[0009] Furthermore, the second end face has two opposing edges in the second direction, the groove has a slot communicating with the second end face, and the distance between the edge of the second end face and the slot of the groove is 2-3 mm.

[0010] Furthermore, the groove has a dimension of 6-11 mm along the second direction.

[0011] 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.

[0012] This utility model also provides an electrode tab adhesive device, comprising: The aforementioned tab adhesive mechanism; A drive mechanism is used to drive the tab adhesive mechanism to move along the first direction; A vacuuming mechanism is used to evacuate the plurality of first air holes, the plurality of second air holes, the plurality of third air holes, and the plurality of fourth air holes; A blower mechanism for driving air into the plurality of first air holes, the plurality of second air holes, and the plurality of third air holes.

[0013] Furthermore, the plurality of first air holes are connected to the vacuuming mechanism and the blower mechanism, the plurality of second air holes are connected to the vacuuming mechanism and the blower mechanism, the plurality of third air holes are connected to the vacuuming mechanism and the blower mechanism, and the plurality of fourth air holes are connected to the vacuuming mechanism.

[0014] Furthermore, the plurality of first air holes, the plurality of second air holes, the plurality of third air holes, and the plurality of fourth air holes are connected to the same vacuuming mechanism.

[0015] Furthermore, the plurality of first air holes, the plurality of second air holes, and the third air hole are connected to the same blower mechanism.

[0016] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: The electrode tab adhesive application mechanism and electrode tab adhesive application device of this utility model have a groove on the second end face of the second adhesive application component, so that the protruding area of ​​the second end face of the second adhesive application component is small and the protruding area is directly opposite the root of the electrode tab. When applying adhesive, it can improve the adhesion between the tape and the root of the electrode tab, prevent the edge of the solder stamp from being pulled, and prevent the electrode tab from cracking. (2) The electrode tab adhesive application mechanism and electrode tab adhesive application device of the present invention have a fourth air hole in the groove, which can suck the tape into an arched shape. When applying the adhesive, the fourth air hole does not blow air. After the adhesive is applied, the tape at the solder mark arches up and does not stick to the electrode tab at the edge of the solder mark. This can make the adhesive tape and electrode tab sticking point far away from the edge of the solder mark, which can effectively prevent the edge of the electrode tab from cracking after applying the adhesive. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of a battery cell structure in the prior art; Figure 2 This is a schematic diagram of the electrode tab adhesive mechanism of this utility model; Figure 3 This is a schematic diagram of the working mechanism of the electrode ear adhesive application in this utility model; Figure 4 This is a schematic diagram of the battery cell structure in this utility model. Figure 5 This is a schematic diagram of the components of the electrode tab adhesive device in this utility model.

[0019] Explanation of reference numerals in the instruction manual's attached drawings: 11. Adhesive tape; 111. Middle section; 12. Battery cell body; 121. Large surface of the battery cell; 13. Electrode tab; 131. Solder mark; 132. Root; 14. Adapter piece; 2. Adhesive application mechanism; 21. First adhesive application component; 211. First air hole; 22. Second adhesive application component; 221. Second air hole; 222. Third air hole; 223. Groove; 224. Fourth air hole; 31. Adhesive tape; 311. Arched part; 32. Battery cell body; 321. Large surface of battery cell; 322. Lead-out surface of electrode; 33. Electrode; 331. Electrode surface; 332. Solder mark; 34. Adapter piece; 4. Drive mechanism; 5. Vacuuming mechanism; 6. Blowering mechanism. Detailed Implementation

[0020] 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.

[0021] See Figures 2 to 4 As shown, this utility model provides an embodiment of the electrode tab adhesive mechanism.

[0022] The tab attaching mechanism includes: The first adhesive component 21 has a first end face in a first direction. The first end face is provided with a plurality of first air holes 211. The plurality of first air holes 211 are used to attract one end of the adhesive tape 31 and to blow and adhere one end of the adhesive tape 31 to the large surface 321 of the battery cell body 32. The second adhesive component 22 is disposed on one side of the first adhesive component 21 along the second direction and can move relative to the first adhesive component 21 along the first direction. The second direction is perpendicular to the first direction. The second adhesive component 22 has a second end face facing the same direction as the first end face. The second end face is provided with a plurality of second air holes 221, a plurality of third air holes 222 and a groove 223. The plurality of second air holes 221 are located on one side of the groove 223 along the second direction, and the plurality of third air holes 222 are located on the other side of the groove 223 along the second direction. The plurality of second air holes 221 and the plurality of third air holes 222 are used to attract the other end of the adhesive tape 31 and blow the other end of the adhesive tape 31 to adhere to the tab surface 331 of the tab 33.

[0023] In the above text, the tab applicator is used to attach the tape 31 to the battery cell assembly. The battery cell assembly includes a cell body 32, tabs 33, and adapter plates 34. The cell body 32 is mainly composed of positive electrode plates, negative electrode plates, and a separator, either stacked or wound together. The cell body 32 has two large cell surfaces 321 and one tab lead-out surface 322. The large cell surface 321 refers to one of the relatively large and flat surfaces of the cell body 32 that plays an important supporting or external contact role during battery assembly. The two large cell surfaces 321 of the cell body 32 are opposite to each other and are respectively the first large cell surface and the second large cell surface. The tab lead-out surface 322 refers to the surface of the cell body 32 that extends out of the tab 33. The tab 33 has two tab surfaces 331. The two tab surfaces 331 of the tab 33 are opposite to each other and are respectively the first tab surface and the second tab surface. The first tab surface is adjacent to the first large cell surface, and the second tab surface is adjacent to the second large cell surface. The first tab surface of the tab 33 is welded to the adapter piece 34 to form a solder mark 332.

[0024] The first adhesive applicator 21 is used to attach one end of the tape 31 to the second large surface of the cell body 32, and the second adhesive applicator 22 is used to attach the other end of the tape 31 to the surface of the second tab 33, preventing solder slag from the solder mark 332 from falling into the cell body 32. The first vent 211 is an airflow channel located on the first end face of the first adhesive applicator 21, which can switch between an intake mode and a blow mode. The second vent 221 and the third vent 222 are airflow channels located on the second end face of the second adhesive applicator 22, which can switch between an intake mode and a blow mode. The groove 223 is a recessed area located on the second end face of the second adhesive applicator 22, used to reduce the area of ​​the protruding area on the second end face.

[0025] Specifically, in the prior art, the bottom surface of the second adhesive component is flat, and the tape in the corresponding area of ​​the entire end face may adhere to the tab first, resulting in an inconsistent position of the tape adhering to the root of the tab. This solution can control the correspondence between the adhesive area and the protruding area of ​​the tape and the root of the tab.

[0026] Before applying the adhesive, the tape 31 and the battery cell assembly need to be positioned so that the tab applicator can pick up the non-adhesive side of the tape 31 and apply the tape 31 to the second battery cell surface of the battery cell body 32 and the second tab surface of the tab 33.

[0027] Specifically, the adhesive application process of the aforementioned tab-applying mechanism includes the following steps: S1, the electrode tab adhesive mechanism is close to tape 31; S2, the first air hole 211, the second air hole 221 and the third air hole 222 are in the air suction mode, the first end face of the first adhesive part 21 and the second end face of the second adhesive part 22 approach the tape 31 along the first direction and respectively adsorb the two ends of the tape 31. S3, the electrode adhesive mechanism moves to the cell assembly, and the adhesive surfaces at both ends of the tape 31 face the second cell surface of the cell body 32 and the second electrode surface of the electrode 33, respectively. S4. The first adhesive part 21 and the second adhesive part 22 approach the battery cell assembly simultaneously along the first direction until the end of the tape 31 adsorbed by the first end face of the first adhesive part 21 is attached to the second battery cell large surface of the battery cell body 32. The first adhesive part 21 stops moving and the first air hole 211 switches to the blowing mode until the preset time is reached. S5. The second adhesive part 22 continues to approach the second tab surface of the tab 33 along the first direction until the end of the tape 31 adsorbed by the second end face of the second adhesive part 22 is attached to the second tab surface of the tab 33. The second air hole 221 and the third air hole 222 switch to the blowing mode until the preset time is reached.

[0028] Through the above technical solution, a groove is provided on the second end face of the second adhesive component, so that the raised area of ​​the second end face of the second adhesive component is small. The raised area is directly opposite the root of the tab. When applying adhesive, it can improve the adhesion between the tape and the root of the tab, prevent the edge of the soldering from being pulled, prevent the tab from cracking, solve the problem of the tab not being adhered in the prior art, effectively prevent the tab from tearing during the transfer or welding of the battery cell assembly, and improve the safety and reliability of the battery.

[0029] In this embodiment, the groove 223 is provided with a plurality of fourth air holes 224, which are used to absorb the adhesive tape.

[0030] In the above text, the fourth air hole 224 refers to the airflow channel set on the inner surface of the groove 223, which is in the air intake mode. When the electrode adhesive mechanism is applying adhesive, the groove 223 is directly opposite the solder mark 332. The groove 223 can be a through groove with open ends or a closed groove with closed sides. When the groove 223 is a through groove, it extends along a third direction, which is perpendicular to both the first and second directions.

[0031] Specifically, when the second adhesive part 22 absorbs the adhesive tape 31, the fourth air hole 224 in the groove 223 is activated simultaneously and generates negative pressure. Part of the adhesive tape is absorbed to the inner surface of the groove 223 and fits the contour of the groove 223, forming an arched part 311. When the second air hole 221 and the third air hole 222 switch to the blowing mode, the fourth air hole 224 remains in the suction mode. After the adhesive is applied, the adhesive tape at the solder mark arches up and does not fit with the edge of the solder mark.

[0032] With the above technical solution, a fourth air hole is set in the groove, which can suck the tape into an arched shape. When applying the tape, the fourth air hole does not blow air. After the tape is applied, the tape at the solder mark arches up and does not stick to the edge of the solder mark. This can keep the tape and the electrode tab away from the edge of the solder mark, which can effectively prevent the edge of the electrode tab from cracking after applying the tape.

[0033] In this embodiment, the groove 223 is a rectangular groove, an arc-shaped groove, or a U-shaped groove.

[0034] In the above text, a rectangular groove refers to a straight-line recessed structure with four right-angled sides. An arc-shaped groove refers to a recessed structure with a continuous curved surface, guiding the tape to bend naturally through a smooth transition. A U-shaped groove refers to a recessed structure with a rounded bottom and vertical walls on both sides. The rectangular, arc-shaped, and U-shaped grooves mentioned above are some common shapes of grooves and will not be elaborated further here.

[0035] By defining the geometry of the groove, the correspondence between the tape bending shape and the curved surface at the root of the tab is established, effectively preventing the tab from pulling on the edge of the solder joint during the transfer of the battery cell assembly, and avoiding the occurrence of tab cracking.

[0036] In this embodiment, the second end face has two opposing edges in the second direction, the groove 223 has a slot that communicates with the second end face, and the distance between the edge of the second end face and the slot of the groove 223 is 2-3 mm.

[0037] In the above text, the edge of the second end face refers to the two outer boundaries extending along a third direction on the second adhesive part 22, with the third direction perpendicular to the first and second directions. The groove 223 refers to the opening structure formed by the groove 223 on the second end face. The distance between the edge and the groove 223 can be 2-3 mm, for example, 2 mm, 2.5 mm, or 3 mm. This distance controls the width of the raised area on the second end face of the second adhesive part 22.

[0038] Through the above technical solution, the raised area of ​​the second end face of the second adhesive component is set within a certain width range. This width is neither too large nor too small, which ensures that the contact area between the tape and the electrode is small, while also ensuring that the tape and the electrode have sufficient contact area to ensure their adhesion.

[0039] In this embodiment, the groove 223 has a dimension of 6-11 mm along the second direction.

[0040] In the above text, the dimension of the groove 223 along the second direction refers to the dimension of the groove 223 measured along the second direction. The dimension of the groove 223 along the second direction is 6 mm, 7 mm, 8 mm, 9 mm, 10 mm or 11 mm, and this dimension range matches the solder mark size.

[0041] Through the above technical solution, the recessed area on the second end face of the second adhesive component is set within a certain width. This width range can ensure that the raised area on the second end face is narrow, while matching the soldering size.

[0042] In this embodiment, the first adhesive component 21 is connected to the second adhesive component 22, and the first adhesive component 21 and the second adhesive component 22 can slide relative to each other along the first direction.

[0043] In the above text, the first adhesive component 21 and the second adhesive component 22 are connected as a whole, which facilitates subsequent connection with the drive mechanism. The first adhesive component 21 and the second adhesive component 22 slide relative to each other along the first direction to compensate for the height difference between the second large surface of the battery cell body 32 and the second tab surface of the electrode 33 during adhesive application.

[0044] Specifically, during tape pickup, the first adhesive applicator 21 and the second adhesive applicator 22 are in a first relative position, with their first and second end faces flush, facilitating tape pickup. After the first end face of the first adhesive applicator 21 attaches one end of the tape 31 to the second large surface of the battery cell body 32, the second adhesive applicator 22 moves relative to the first adhesive applicator 21, allowing the second adhesive applicator 22 to continue approaching the second tab surface of the electrode 33, thereby attaching the other end of the tape 31 to the second tab surface of the electrode 33.

[0045] The above technical solution enables the tab attaching mechanism to have good overall integrity, facilitating connection and control with other equipment.

[0046] Example 2: See Figure 5 The figure shows an embodiment of the tab adhesive device provided by this utility model.

[0047] The tab attaching device includes: The aforementioned tab adhesive mechanism 2; Drive mechanism 4 is used to drive the above-mentioned tab adhesive mechanism 2 to move along the first direction; The vacuuming mechanism 5 is used to evacuate the plurality of first air holes 211, the plurality of second air holes 221, the plurality of third air holes 222 and the plurality of fourth air holes 224. The blower mechanism 6 is used to drive air into the plurality of first air holes 211, the plurality of second air holes 221 and the plurality of third air holes 222.

[0048] In the above text, the driving mechanism 4 refers to the power component that can drive the first adhesive applicator 21 and the second adhesive applicator 22 as a whole and each of them to move along the first direction. It can meet the needs of the first adhesive applicator 21 and the second adhesive applicator 22 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 211, second vent 221, third vent 222 and fourth vent 224), 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 211, second vent 221 and third vent 222), so that the space forms and maintains a positive pressure environment higher than the external atmospheric pressure.

[0049] The tab-applying mechanism 2 switches back and forth between a first state and a second state. In the first state, the first end face and the second end face are on the same plane, which facilitates the simultaneous adsorption of both ends of the tape 31. In the second state, the first end face and the second end face form a height difference, which matches the height difference between the second large surface of the battery cell body 32 and the second tab surface of the tab 33.

[0050] Specifically, during the adhesive application process, the drive mechanism 4 drives the tab adhesive application mechanism 2 to move closer to and further away from the battery cell assembly. The vacuum mechanism 5 generates negative pressure in the first air hole 211, the second air hole 221, the third air hole 222, and the fourth air hole 224. The blower mechanism 6 generates positive pressure in the first air hole 211, the second air hole 221, and the third air hole 222.

[0051] 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.

[0052] In this embodiment, the plurality of first air holes 211 are connected to the vacuuming mechanism 5 and the blower mechanism 6, the plurality of second air holes 221 are connected to the vacuuming mechanism 5 and the blower mechanism 6, the plurality of third air holes 222 are connected to the vacuuming mechanism 5 and the blower mechanism 6, and the plurality of fourth air holes 224 are connected to the vacuuming mechanism 5.

[0053] In the above description, multiple first air ports 211 are connected in parallel to a first air chamber. The first air 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 211 is in suction mode, the solenoid valve between the first air chamber and the vacuum mechanism 5 is open, and the solenoid valve between the first air chamber and the blower mechanism 6 is closed. When the first air port 211 is in blowing mode, the solenoid valve between the first air chamber and the blower mechanism 6 is open, and the solenoid valve between the first air chamber and the vacuum mechanism 5 is closed. Similarly, multiple second air ports 221 are connected in parallel to a second air chamber. The second air 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 221 is in suction mode, the solenoid valve between the second air chamber and the vacuum mechanism 5 is open, and the solenoid valve between the second air chamber and the blower mechanism 6 is closed. When the second air port 221 is in blowing mode, the solenoid valve between the second air chamber and the blower mechanism 6 is open, and the solenoid valve between the second air chamber and the vacuum mechanism 5 is closed. Multiple third air ports 222 are connected in parallel to a third air chamber. The third air chamber is connected to a vacuum mechanism 5 via a solenoid valve and to a blower mechanism 6 via another solenoid valve. When the third air port 222 is in suction mode, the solenoid valve between the third air chamber and the vacuum mechanism 5 is open, and the solenoid valve between the third air chamber and the blower mechanism 6 is closed. When the third air port 222 is in blowing mode, the solenoid valve between the third air chamber and the blower mechanism 6 is open, and the solenoid valve between the third air chamber and the vacuum mechanism 5 is closed. Multiple fourth air ports 224 are connected in parallel to a fourth air chamber. The fourth air chamber is connected to the vacuum mechanism 5 via a solenoid valve. When the fourth air port 224 is in suction mode, the solenoid valve between the fourth air chamber and the vacuum mechanism 5 is open. When the fourth air port 224 is in suction mode, the solenoid valve between the fourth air chamber and the vacuum mechanism 5 is closed.

[0054] With the above technical solution, the first, second, third and fourth air holes all participate in the work during vacuuming and blowing, ensuring vacuum adsorption force, vacuum adsorption area, blowing force and blowing area.

[0055] 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. Some of the third air holes may be connected to a vacuuming mechanism, and the remaining third air holes may be connected to a blower mechanism.

[0056] In this embodiment, the plurality of first air holes 211, the plurality of second air holes 221, the plurality of third air holes 222 and the plurality of fourth air holes 224 are connected to the same vacuuming mechanism 5.

[0057] In the above text, the first air hole 211 of the first adhesive part 21 and the second air hole 221, third air hole 222 and fourth air hole 224 of the second adhesive part 22 are connected in parallel to the same vacuum mechanism 5 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 211, second air hole 221, third air hole 222 and fourth air hole 224 are in suction mode.

[0058] Specifically, when the first vent 211 is in suction mode, the solenoid valve on the pipeline between the first vent 211 and the vacuum mechanism 5 opens; when the first vent 211 is in suction mode, the solenoid valve on the pipeline between the first vent 211 and the vacuum mechanism 5 closes. When the second vent 221 is in suction mode, the solenoid valve on the pipeline between the second vent 221 and the vacuum mechanism 5 opens; when the second vent 221 is in suction mode, the solenoid valve on the pipeline between the second vent 221 and the vacuum mechanism 5 closes. When the third vent 222 is in suction mode, the solenoid valve on the pipeline between the third vent 222 and the vacuum mechanism 5 opens; when the third vent 222 is in suction mode, the solenoid valve on the pipeline between the third vent 222 and the vacuum mechanism 5 closes. When the fourth vent 224 is in suction mode, the solenoid valve on the pipeline between the fourth vent 224 and the vacuum mechanism 5 opens; when the fourth vent 224 is in suction mode, the solenoid valve on the pipeline between the third vent 222 and the vacuum mechanism 5 closes. When any one of the first vent 211, second vent 221, third vent 222, and multiple fourth vents 224 is in suction mode, the vacuum mechanism 5 opens; when all of them are in suction mode, the vacuum mechanism 5 closes.

[0059] The above technical solution allows for vacuuming of the first, second, third, and fourth air holes using only one vacuuming mechanism, saving equipment and reducing costs.

[0060] In other embodiments, the first air hole, the second air hole, the third air hole, and the fourth air hole are each connected to an independent vacuuming mechanism, and the first air hole, the second air hole, the third air hole, and the fourth air hole are controlled to open the air intake mode by controlling the start and stop of the vacuuming mechanism.

[0061] In this embodiment, the plurality of first air holes 211, the plurality of second air holes 221 and the third air hole 222 are connected to the same blower mechanism 6.

[0062] In the above text, the first air hole 211 of the first adhesive part 21 and the second air hole 221 and the third air hole 222 of the second adhesive part 22 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 211, the second air hole 221 and the third air hole 222 are in the blowing mode.

[0063] Specifically, when the first air port 211 is in blowing mode, the solenoid valve on the pipe between the first air port 211 and the blower mechanism 6 is open; when the first air port 211 is in blowing mode, the solenoid valve on the pipe between the first air port 211 and the blower mechanism 6 is closed. When the second air port 221 is in blowing mode, the solenoid valve on the pipe between the second air port 221 and the blower mechanism 6 is open; when the second air port 221 is in blowing mode, the solenoid valve on the pipe between the second air port 221 and the blower mechanism 6 is closed. When the third air port 222 is in blowing mode, the solenoid valve on the pipe between the third air port 222 and the blower mechanism 6 is open; when the third air port 222 is in blowing mode, the solenoid valve on the pipe between the third air port 222 and the blower mechanism 6 is closed. When any one of the first air port 211, the second air port 221, and the third air port 222 is in blowing mode, the blower mechanism 6 is open; when all three are in blowing mode, the blower mechanism 6 is closed.

[0064] 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.

[0065] 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.

[0066] 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-adhesive bonding mechanism, characterized in that, include: The first adhesive part (21) has a first end face in a first direction. The first end face is provided with a plurality of first air holes (211). The plurality of first air holes (211) are used to attract one end of the adhesive tape (31) and to blow and adhere one end of the adhesive tape (31) to the large surface (321) of the battery cell body (32). The second adhesive component (22) is disposed on one side of the first adhesive component (21) along the second direction and can move relative to the first adhesive component (21) along the first direction. The second direction is perpendicular to the first direction. The second adhesive component (22) has a second end face facing the same direction as the first end face. The second end face is provided with a plurality of second air holes (221), a plurality of third air holes (222) and a groove (223). The plurality of second air holes (221) are located on one side of the groove (223) along the second direction, and the plurality of third air holes (222) are located on the other side of the groove (223) along the second direction. The plurality of second air holes (221) and the plurality of third air holes (222) are used to attract the other end of the adhesive tape (31) and blow the other end of the adhesive tape (31) onto the tab surface (331) of the tab (33).

2. The tab attaching mechanism according to claim 1, characterized in that, The groove (223) is provided with a plurality of fourth air holes (224), which are used to absorb adhesive tape.

3. The electrode tab adhesive mechanism according to claim 1, characterized in that, The groove (223) is a rectangular groove, an arc-shaped groove, or a U-shaped groove.

4. The tab attaching mechanism according to claim 1, characterized in that, The second end face has two opposing edges in the second direction, and the groove (223) has a slot that communicates with the second end face. The distance between the edge of the second end face and the slot of the groove (223) is 2-3 mm.

5. The electrode tab adhesive mechanism according to claim 1, characterized in that, The groove (223) has a dimension of 6-11 mm along the second direction.

6. The tab attaching mechanism according to claim 1, characterized in that, The first adhesive part (21) is connected to the second adhesive part (22), and the first adhesive part (21) and the second adhesive part (22) can slide relative to each other along the first direction.

7. A tab-adhesive bonding device, characterized in that, include: The tab adhesive mechanism (2) according to any one of claims 1 to 6; The driving mechanism (4) is used to drive the tab adhesive mechanism (2) to move along the first direction; Vacuuming mechanism (5) is used to vacuum the plurality of first air holes (211), the plurality of second air holes (221), the plurality of third air holes (222) and the fourth air hole (224) of the tab adhesive mechanism according to claim 2; A blower mechanism (6) is used to drive air into the plurality of first air holes (211), the plurality of second air holes (221) and the plurality of third air holes (222).

8. The tab-applying device according to claim 7, characterized in that, The plurality of first air holes (211) are connected to the vacuuming mechanism (5) and the blower mechanism (6), the plurality of second air holes (221) are connected to the vacuuming mechanism (5) and the blower mechanism (6), the plurality of third air holes (222) are connected to the vacuuming mechanism (5) and the blower mechanism (6), and the plurality of fourth air holes (224) of the tab adhesive mechanism of claim 2 are connected to the vacuuming mechanism (5).

9. The tab-applying device according to claim 7, characterized in that, The plurality of first air holes (211), the plurality of second air holes (221), the plurality of third air holes (222), and the plurality of fourth air holes (224) of the tab adhesive mechanism according to claim 2 are connected to the same vacuuming mechanism (5).

10. The adhesive applicator according to claim 7, characterized in that, The plurality of first air holes (211), the plurality of second air holes (221) and the third air hole (222) are connected to the same blower mechanism (6).

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