Formation device for manufacturing lithium battery

Abstract

The invention relates to the technical field of lithium battery processing, in particular to a lithium battery manufacturing formation device which comprises a formation clamping seat, a pushing plate and a bearing plate are arranged at the two ends in the formation clamping seat respectively, a plurality of clamping plates are arranged between the pushing plate and the bearing plate, and a plurality of guide rods are fixedly connected to the formation clamping seat. The pushing plate, the pressure bearing plate and the plurality of clamping plates are all inserted into the plurality of guide rods in a sliding manner; a driving assembly for driving the pushing plate to move is arranged on the formation clamping seat; the two limiting frames synchronously get close to the lithium battery tab under the action of the limiting strips, and the nearest distance between the lithium battery tab and the limiting frames is achieved in the final stage of moving and clamping the lithium battery, so that the tab is limited between the two limiting frames in a non-contact manner, and when the lithium battery is clamped, the contact probability of the tab and the lithium battery tab is reduced; and the lamination flatness of the tabs is ensured.

Description

Technical Field

[0001] This invention relates to the field of lithium battery processing technology, and in particular to a formation apparatus for lithium battery manufacturing. Background Technology

[0002] Battery formation is a crucial activation process in battery manufacturing, forming a stable solid electrolyte interface film on the negative electrode surface during the first charge and discharge cycle. This process effectively prevents the continuous decomposition of the electrolyte, improving the battery's cycle life, safety, and self-discharge performance. Precise control of the formation process directly affects the battery's final capacity and consistency, making it a core element determining battery quality.

[0003] Patent document CN107978798B discloses a lithium battery formation device, including two opposing support seats, multiple guide posts between the two support seats, and a clamping assembly sleeved on the multiple guide posts. A pushing mechanism drives the clamping assembly to slide along the guide posts. An adjustment mechanism is provided between the two support seats to adjust the vertical position of multiple formation layer plate assemblies and a PCB board assembly disposed on the formation layer plate assembly and in contact with the lithium battery tabs.

[0004] During the formation of lithium batteries, multiple clamping plates are used to hold the lithium batteries by unidirectional movement, and the two sides of the lithium battery tabs are pressed together by a tab pressing plate. When multiple clamping plates move to one end and push and clamp multiple lithium batteries, the tab pressing plate closest to the direction of movement of the lithium battery tabs will first come into contact with and squeeze the lithium battery tabs. In the subsequent pushing process, this will cause the tabs to tilt and deform in one direction, thereby reducing the flatness of the tabs and making it easy for stacking and misalignment to occur during the pressing process on both sides. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a formation apparatus for lithium battery manufacturing.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a formation device for lithium battery manufacturing, including a formation clamp, a push plate and a pressure plate are respectively provided at both ends inside the formation clamp, a plurality of clamping plates are provided between the push plate and the pressure plate, a plurality of guide rods are fixedly connected to the formation clamp, the push plate, the pressure plate and the plurality of clamping plates are slidably inserted into the plurality of guide rods, and a drive assembly for driving the push plate to move is provided on the formation clamp;

[0007] Two sets of limiting strips are provided between each pair of adjacent clamping plates. Each set of limiting strips consists of two strips. The two limiting strips in the same set are hinged together at the center of a limiting shaft. Both ends of the limiting strips are rotatably connected to sliders, which are slidably connected to the sides of the corresponding clamping plates. Each set of limiting strips has two limiting frames on the side closest to the clamping plate. Each limiting frame is fixedly connected to a strip-shaped groove rail. Inside each strip-shaped groove rail, there are two limiting pins that slide and limit the corresponding limiting strips. Each limiting frame has a movable strip that slides and is equipped with a sliding assembly. The sliding assembly is used to drive the movable strip to slide synchronously with the corresponding strip-shaped groove rail.

[0008] Each limiting frame has two placement slots, and each placement slot contains a pressing block. The limiting frame is equipped with a movable clamping component, which is used to drive the pressing block to move and contact with the tab.

[0009] Preferably, the sliding component includes two rectangular bars, which are respectively disposed on both sides of the forming clamp. One end of each movable bar is fixedly connected to a rectangular collar, which slides on the corresponding rectangular bar.

[0010] Preferably, the movable clamping assembly includes two fixed brackets, which are slidably connected to both sides of the forming clamp. Two rectangular bars are fixedly connected to the two fixed brackets. Two mounting plates are slidably connected inside the limiting frame. Two connecting pins are fixedly connected to one side of the pressing block. The connecting pins are slidably inserted into the corresponding mounting plates. A first spring is sleeved on each connecting pin. The first spring is fixedly connected between the corresponding mounting plate and the pressing block. Inclined guide grooves are provided at the top and bottom of the movable bar. Circular pins are fixedly connected to each mounting plate. One end of each circular pin is located inside the corresponding inclined guide groove. A reverse drive assembly is provided on the two fixed brackets.

[0011] Preferably, the reverse drive assembly includes a bidirectional lead screw, which is rotatably connected to the formation clamp. The bottom of each of the two fixed brackets is fixedly connected to a mounting strip, which is threaded to both ends of the bidirectional lead screw. A first motor is fixedly mounted on the formation clamp, and the output shaft of the first motor is fixedly connected to one end of the bidirectional lead screw.

[0012] Preferably, both sides of the clamping plate are fixedly connected with baffles, the baffles are located between the corresponding two sliders, and the clamping base is provided with an unfolding component.

[0013] Preferably, the unfolding assembly includes multiple first limiting rings and multiple second limiting rings. The multiple first limiting rings are fixedly connected to a clamping plate near the push plate. Each of the first limiting rings has a first stop pin slidably inserted inside. The multiple first stop pins are fixedly connected to the push plate. The multiple second limiting rings are fixedly connected to a clamping plate near the pressure plate. Each of the second limiting rings has a second stop pin slidably inserted inside. The multiple second stop pins are fixedly connected to a chemical forming clamp.

[0014] Preferably, the drive assembly includes two lead screws, both of which are rotatably connected inside the formation clamp, both of which are threaded onto a push plate, and one end of each lead screw is fixedly connected to a transmission gear. A second motor is fixedly mounted on the formation clamp, and a drive gear is fixedly connected to the output shaft of the second motor. Multiple mating gears rotatably mesh between the drive gear and the transmission gear, and the multiple mating gears are rotatably connected to the formation clamp.

[0015] Preferably, a pressure-bearing ball head is fixedly connected to the side of the pressure plate away from the push plate, and a pressure sensor is fixedly installed on the forming clamp, with the pressure-bearing ball head in contact with the pressure sensor.

[0016] Preferably, a buffer plate is provided on the side of the pressure plate near the push plate, and multiple second springs are fixedly connected between the buffer plate and the pressure plate.

[0017] Preferably, a U-shaped tube is fixedly installed above the chemical forming clamp, and multiple spray heads are fixedly connected to the U-shaped tube.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. When two adjacent clamping plates 4 move synchronously toward the pressure plate 3, the distance between the two limiting frames 9 remains unchanged. When the distance between two adjacent clamping plates 4 changes, the limiting strip 6 causes the two limiting frames 9 to move synchronously toward the lithium battery tabs. In the final stage of clamping the lithium battery, the closest distance with the lithium battery tabs is reached, so that the tabs are non-contactly limited between the two limiting frames 9. When clamping the lithium battery, the probability of contact with the lithium battery tabs is reduced, and the flatness of the tab pressing is guaranteed.

[0020] 2. The inclined guide groove guides the circular pin, causing the mounting plate to move along the sliding connection and drive the corresponding pressing block to move outward from the placement groove and contact the electrode ear. After the two pressing blocks contact and press the electrode ear, the mounting plate continues to move and squeezes the first spring on the connecting pin. The compressed first spring elastically presses the two pressing blocks onto both sides of the electrode ear through its elastic extension, thus completing the contact pressing between the electrode ear and the pressing block.

[0021] 3. As the two limit bars in the same group move in opposite directions along the limit axis, the two sliders on one side of the clamping plate approach each other. When the two sliders contact the stop bar, they restrict the two limit bars in the same group from continuing to move, so that the two adjacent clamping plates reach the maximum distance and limit each other, thereby allowing multiple clamping plates to move back to the initial position. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the first structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0024] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B in the diagram;

[0025] Figure 4 This is a schematic diagram of the second structure of the present invention;

[0026] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point C;

[0027] Figure 6 For the present invention Figure 4 Enlarged schematic diagram of the structure at point D;

[0028] Figure 7 This is a cross-sectional structural diagram of the present invention;

[0029] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point E in the diagram;

[0030] Figure 9 This is a schematic diagram of the mating structure of the pressure plate and the buffer plate of the present invention;

[0031] Figure 10 For the present invention Figure 9 Enlarged schematic diagram of the structure at point F;

[0032] Figure 11 This is a schematic diagram of the first mating structure of the limiting strip, limiting frame, and movable strip of the present invention;

[0033] Figure 12 For the present invention Figure 11 Enlarged schematic diagram of the structure at point G in the diagram;

[0034] Figure 13 This is a schematic diagram of the second mating structure of the limiting strip, limiting frame, and movable strip of the present invention;

[0035] Figure 14 For the present invention Figure 13A magnified schematic diagram of the structure at point H.

[0036] In the diagram: 1. Formation clamp; 2. Push plate; 3. Pressure plate; 4. Clamping plate; 5. Guide rod; 6. Limiting strip; 7. Limiting shaft; 8. Slider; 9. Limiting frame; 10. Strip rail; 11. Limiting pin; 12. Movable strip; 13. Placement groove; 14. Pressing block; 15. Rectangular strip; 16. Rectangular collar; 17. Fixed bracket; 18. Mounting plate; 19. Connecting pin; 20. First spring; 21. Inclined guide groove; 22. Circular 23. Lead screw; 24. Mounting strip; 25. First motor; 26. Stop bar; 27. First limit ring; 28. First stop pin; 29. ​​Second limit ring; 30. Second stop pin; 31. Transmission lead screw; 32. Transmission gear; 33. Second motor; 34. Drive gear; 35. Matching gear; 36. Pressure bearing ball head; 37. Pressure sensor; 38. Buffer plate; 39. Second spring; 40. U-tube; 41. Spray head. Detailed Implementation

[0037] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0038] like Figures 1 to 14 The lithium battery manufacturing formation apparatus shown includes a formation clamp 1. A push plate 2 and a pressure plate 3 are respectively provided at both ends inside the formation clamp 1. A plurality of clamping plates 4 are provided between the push plate 2 and the pressure plate 3. A plurality of guide rods 5 are fixedly connected to the formation clamp 1. The push plate 2, the pressure plate 3 and the plurality of clamping plates 4 are all slidably inserted into the plurality of guide rods 5. A drive assembly for driving the push plate 2 to move is provided on the formation clamp 1.

[0039] Two sets of limiting strips 6 are provided between two adjacent clamping plates 4. Each set of limiting strips 6 consists of two. The two limiting strips 6 in the same set are hinged together at the center of a limiting shaft 7. Both ends of the limiting strips 6 are rotatably connected to sliders 8. The sliders 8 are slidably connected to the side of the corresponding clamping plate 4. Each set of limiting strips 6 is provided with two limiting frames 9 on the side near the clamping plate 4. Each limiting frame 9 is fixedly connected to a strip rail 10. The inside of each strip rail 10 is slidably limited by two limiting pins 11. The two limiting pins 11 are fixedly connected to the corresponding limiting strips 6. Each limiting frame 9 is slidably connected to a movable strip 12. The movable strip 12 is provided with a sliding assembly. The sliding assembly is used to drive the movable strip 12 to slide synchronously with the corresponding strip rail 10.

[0040] Two placement slots 13 are provided on each of the limiting frames 9 (e.g. Figure 3 and Figure 14As shown), each of the placement slots 13 is provided with a pressing block 14, and the limiting frame 9 is provided with a movable clamping component, which is used to drive the pressing block 14 to move and contact with the tab.

[0041] Multiple formed lithium batteries are placed between two adjacent clamping plates 4, with the battery tabs positioned between two adjacent limiting frames 9. A drive assembly drives a push plate 2 to move towards a pressure plate 3. During this movement, the push plate 2 pushes multiple clamping plates 4, clamping the lithium batteries between two adjacent clamping plates 4. As the two adjacent clamping plates 4 shorten their distance along the sliding joint of the guide rod 5, two limiting strips 6 in the same group rotate along the hinge of the limiting shaft 7. The sliders 8, which are rotatably connected at both ends of the limiting strips 6, slide along the sliding joint of the clamping plates 4, causing the limiting pins 11 to move closer to the limiting shaft 7. Through the sliding limitation of the limiting pins 11 and the strip rails 10, the two strip rails 10 move closer to each other, causing the two limiting frames 9 to move synchronously closer to the sides of the lithium battery tabs. The limiting frames 9 are slidably connected to the movable strips 12. When the limiting frames 9 move horizontally, the sliding assembly drives the movable strips 12 to move synchronously, preventing the movable strips 12 from interfering with the limiting frames 9.

[0042] After the lithium battery is clamped by the clamping plates 4 on both sides, the two limiting frames 9 move to the closest distance on both sides of the electrode tab. Then, the pressing block 14 is driven to continue moving towards the electrode tab by the action of the movable clamping component, so that the pressing block 14 contacts the electrode tab and makes circuit connection.

[0043] In this invention, during the formation of lithium batteries, a pusher plate 2 pushes multiple clamping plates 4 to move towards a pressure plate 3, and moves and clamps the lithium batteries between adjacent clamping plates 4. When two adjacent clamping plates 4 move towards the pressure plate 3 simultaneously, the distance between the two limiting frames 9 remains unchanged. When the distance between two adjacent clamping plates 4 changes, the limiting strip 6 causes the two limiting frames 9 to move towards the lithium battery tabs simultaneously. In the final stage of moving and clamping the lithium battery, the closest distance to the lithium battery tabs is reached, so that the tabs are non-contactly limited between the two limiting frames 9. During the clamping of the lithium battery, the probability of contact with the lithium battery tabs is reduced, ensuring the flatness of the tab pressing.

[0044] As a further embodiment of the present invention, the sliding component includes two rectangular bars 15, which are respectively disposed on both sides of the forming clamp 1. One end of each movable bar 12 is fixedly connected to a rectangular collar 16, which is slidably sleeved on the corresponding rectangular bar 15.

[0045] The rectangular collar 16 is slidably fitted onto the rectangular bar 15. Through the fixed connection between the rectangular collar 16 and the movable bar 12, the movable bar 12 is slidably limited. The movable bar 12 is slidably connected to the corresponding limiting frame 9, thereby providing vertical support for the limiting frame 9. When the limiting frame 9 moves horizontally with the clamping plate 4, the movable bar 12 drives the rectangular collar 16 to move synchronously along the sliding fitting point of the rectangular bar 15.

[0046] As a further embodiment of the present invention, the movable clamping assembly includes two fixed brackets 17, which are slidably connected to both sides of the forming clamp 1. Two rectangular bars 15 are fixedly connected to the two fixed brackets 17. Two mounting plates 18 are slidably connected inside the limiting frame 9. Two connecting pins 19 are fixedly connected to one side of the pressing block 14. The connecting pins 19 are slidably inserted into the corresponding mounting plates 18. A first spring 20 is sleeved on each connecting pin 19. The first spring 20 is fixedly connected between the corresponding mounting plate 18 and the pressing block 14. Inclined guide grooves 21 are provided at the top and bottom of the movable bar 12 (e.g., Figure 14 As shown), each mounting plate 18 is fixedly connected with a circular pin 22, one end of which is located inside the corresponding inclined guide groove 21. The two fixed brackets 17 are equipped with reverse drive components.

[0047] The reverse drive assembly drives the two fixed brackets 17 to move in the opposite direction along the sliding connection, thereby driving the corresponding rectangular strip 15 to move synchronously. The rectangular strip 15 limits the rectangular collar 16, causing the rectangular collar 16 to drive the movable strip 12 to move synchronously. During the movement, the movable strip 12 guides the circular pin 22 through the inclined guide groove 21, causing the mounting plate 18 to move along the sliding connection and drive the corresponding pressing block 14 to move outward from the placement groove 13 and contact the electrode ear. After the two pressing blocks 14 contact and press the electrode ear, the mounting plate 18 continues to move and squeezes the first spring 20 on the connecting pin 19. The compressed first spring 20 elastically presses the two pressing blocks 14 on both sides of the electrode ear through elastic extension, thereby completing the contact pressing between the electrode ear and the pressing block 14.

[0048] As a further embodiment of the present invention, the reverse drive assembly includes a bidirectional lead screw 23, which is rotatably connected to the formation clamp 1. The bottom of each of the two fixed brackets 17 is fixedly connected to an mounting strip 24, which is threaded to both ends of the bidirectional lead screw 23. A first motor 25 is fixedly installed on the formation clamp 1, and the output shaft of the first motor 25 is fixedly connected to one end of the bidirectional lead screw 23.

[0049] The output shaft of the first motor 25 drives the bidirectional lead screw 23 to rotate. The bidirectional lead screw 23 is threadedly connected to the two mounting bars 24, causing the two mounting bars 24 to drive the corresponding fixed brackets 17 to move in the opposite direction. This causes the two rectangular bars 15 to move in the opposite direction synchronously. When the output shaft of the first motor 25 rotates in the opposite direction, the two fixed brackets 17 drive the corresponding rectangular bars 15 to move closer to each other and return to their initial positions.

[0050] As a further embodiment of the present invention, baffles 26 are fixedly connected to both sides of the clamping plate 4, the baffles 26 are located between the corresponding two sliders 8, and an unfolding component is provided on the clamping base 1.

[0051] After the pusher plate 2 pushes multiple clamping plates 4 to one side and clamps the lithium battery, the pusher plate 2 moves in the opposite direction and pulls the clamping plates 4 in the opposite direction through the action of the unfolding component. During the reverse movement, two adjacent clamping plates 4 are limited by two sets of limiting strips 6. As the two limiting strips 6 of the same group move in the opposite direction along the limiting axis 7, the two sliders 8 on one side of the clamping plate 4 move closer to each other. When the two sliders 8 contact the stop strip 26, they restrict the two limiting strips 6 of the same group from continuing to move, so that the two adjacent clamping plates 4 reach the maximum distance and limit each other, thereby allowing multiple clamping plates 4 to move back to the initial position.

[0052] As a further embodiment of the present invention, the unfolding assembly includes a plurality of first limiting rings 27 and a plurality of second limiting rings 29. The plurality of first limiting rings 27 are fixedly connected to the clamping plate 4 near the push plate 2. Each of the first limiting rings 27 has a first stop pin 28 slidably inserted inside. The plurality of first stop pins 28 are fixedly connected to the push plate 2. The plurality of second limiting rings 29 are fixedly connected to the clamping plate 4 near the pressure plate 3. Each of the second limiting rings 29 has a second stop pin 30 slidably inserted inside. The plurality of second stop pins 30 are fixedly connected to the formation clamping seat 1.

[0053] When the push plate 2 moves toward the pressure plate 3, it pushes multiple clamping plates 4 toward the pressure plate 3 to clamp the lithium battery. Multiple first stop pins 28 on the push plate 2 slide along the sliding joint of the first limiting ring 27, and multiple second limiting rings 29 slide along the surface of the corresponding second stop pin 30. When the push plate 2 moves in the opposite direction, the first stop pins 28 move in the opposite direction along the sliding joint of the first limiting ring 27, and pull the first limiting ring 27 through the limiting section of the first stop pin 28, so that the clamping plate 4 closest to the push plate 2 moves in the opposite direction as the push plate 2 pulls. At the same time, the movement range of the clamping plate 4 closest to the pressure plate 3 is limited by the blocking of the second limiting ring 29 by one end of the second stop pin 30, so that multiple clamping plates 4 return to their initial positions, and the spacing between two adjacent clamping plates 4 is the same.

[0054] As a further embodiment of the present invention, the drive assembly includes two transmission screws 31, both of which are rotatably connected inside the formation clamp 1. Both transmission screws 31 are threadedly connected to the push plate 2. One end of each of the two transmission screws 31 is fixedly connected to a transmission gear 32. A second motor 33 is fixedly mounted on the formation clamp 1. A drive gear 34 is fixedly connected to the output shaft of the second motor 33. Multiple mating gears 35 are rotatably engaged between the drive gear 34 and the transmission gear 32. The multiple mating gears 35 are rotatably connected to the formation clamp 1.

[0055] The output shaft of the second motor 33 drives the drive gear 34 to rotate, and through the meshing of multiple mating gears 35, it drives the two transmission gears 32 to rotate synchronously, causing the two transmission screws 31 to rotate synchronously. The two transmission screws 31 drive the push plate 2 to move in one direction through the threaded connection.

[0056] As a further embodiment of the present invention, a pressure bearing ball head 36 is fixedly connected to the side of the pressure plate 3 away from the push plate 2, and a pressure sensor 37 is fixedly installed on the forming clamp 1, with the pressure bearing ball head 36 in contact with the pressure sensor 37.

[0057] The pusher plate 2 pushes multiple clamping plates 4 to move towards the pressure plate 3 and clamps the lithium battery. The resulting pressure is ultimately applied to the pressure plate 3 and then to the pressure sensor 37 through the pressure ball head 36 on the pressure plate 3. The pressure sensor 37 detects the pressure value in real time.

[0058] As a further embodiment of the present invention, a buffer plate 38 is provided on the side of the pressure plate 3 near the push plate 2, and a plurality of second springs 39 are fixedly connected between the buffer plate 38 and the pressure plate 3.

[0059] Multiple clamping plates 4 move toward the pressure plate 3. The clamping plate 4 closest to the pressure plate 3 contacts the buffer plate 38 and squeezes multiple second springs 39 to produce compression deformation. The clamping is elastically buffered by the elastic compression of the second springs 39.

[0060] As a further embodiment of the present invention, a U-shaped tube 40 is fixedly installed above the chemical forming clamp 1, and a plurality of spray heads 41 are fixedly connected to the U-shaped tube 40.

[0061] When a lithium battery short-circuits and catches fire during formation, the water inlet passage on the U-shaped pipe 40 is opened, allowing multiple spray heads 41 to spray and extinguish the fire, reducing equipment damage.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A formation apparatus for lithium battery manufacturing, comprising a formation clamp, characterized in that, The two ends of the formation clamp are respectively provided with a push plate and a pressure plate. Multiple clamping plates are provided between the push plate and the pressure plate. Multiple guide rods are fixedly connected to the formation clamp. The push plate, the pressure plate and the multiple clamping plates are slidably inserted into the multiple guide rods. The formation clamp is provided with a drive assembly for driving the push plate to move. Two sets of limiting strips are provided between each pair of adjacent clamping plates. Each set of limiting strips consists of two strips. The two limiting strips in the same set are hinged together at the center of a limiting shaft. Both ends of the limiting strips are rotatably connected to sliders, which are slidably connected to the sides of the corresponding clamping plates. Each set of limiting strips has two limiting frames on the side closest to the clamping plate. Each limiting frame is fixedly connected to a strip-shaped groove rail. Inside each strip-shaped groove rail, there are two limiting pins that slide and limit the corresponding limiting strips. Each limiting frame has a movable strip that slides and is equipped with a sliding assembly. The sliding assembly is used to drive the movable strip to slide synchronously with the corresponding strip-shaped groove rail. Each limiting frame has two placement slots, and each placement slot contains a pressing block. The limiting frame is equipped with a movable clamping component, which is used to drive the pressing block to move and contact with the tab.

2. The lithium battery formation apparatus according to claim 1, characterized in that, The sliding component includes two rectangular bars, which are respectively set on both sides of the forming clamp. One end of each movable bar is fixedly connected to a rectangular collar, which slides onto the corresponding rectangular bar.

3. The lithium battery formation apparatus according to claim 2, characterized in that, The movable clamping assembly includes two fixed brackets, which are slidably connected to both sides of the forming clamp. Two rectangular bars are fixedly connected to the two fixed brackets. Two mounting plates are slidably connected inside the limiting frame. Two connecting pins are fixedly connected to one side of the pressing block. The connecting pins are slidably inserted into the corresponding mounting plates. A first spring is sleeved on each connecting pin. The first spring is fixedly connected between the corresponding mounting plate and the pressing block. Inclined guide grooves are opened at the top and bottom of the movable bar. Circular pins are fixedly connected to the mounting plates. One end of each circular pin is located inside the corresponding inclined guide groove. A reverse drive assembly is provided on the two fixed brackets.

4. The formation apparatus for lithium battery manufacturing according to claim 3, characterized in that, The reverse drive assembly includes a bidirectional lead screw, which is rotatably connected to the formation clamp. The bottom of each of the two fixed brackets is fixedly connected to a mounting strip, which is threaded to both ends of the bidirectional lead screw. A first motor is fixedly mounted on the formation clamp, and the output shaft of the first motor is fixedly connected to one end of the bidirectional lead screw.

5. The formation apparatus for lithium battery manufacturing according to claim 1, characterized in that, Both sides of the clamping plate are fixedly connected with baffles, which are located between the corresponding two sliders. An unfolding component is provided on the clamping base.

6. The formation apparatus for lithium battery manufacturing according to claim 5, characterized in that, The unfolding assembly includes multiple first limiting rings and multiple second limiting rings. The multiple first limiting rings are fixedly connected to the clamping plate near the push plate. Each of the first limiting rings has a first stop pin slidably inserted inside. The multiple first stop pins are fixedly connected to the push plate. The multiple second limiting rings are fixedly connected to the clamping plate near the pressure plate. Each of the second limiting rings has a second stop pin slidably inserted inside. The multiple second stop pins are fixedly connected to the formation clamp.

7. The formation apparatus for lithium battery manufacturing according to claim 1, characterized in that, The drive assembly includes two lead screws, both of which are rotatably connected inside the formation clamp. Both lead screws are threaded onto a push plate. One end of each lead screw is fixedly connected to a transmission gear. A second motor is fixedly mounted on the formation clamp. A drive gear is fixedly connected to the output shaft of the second motor. Multiple mating gears rotatably mesh between the drive gear and the transmission gear. These multiple mating gears are rotatably connected to the formation clamp.

8. The formation apparatus for lithium battery manufacturing according to claim 1, characterized in that, A pressure-bearing ball head is fixedly connected to the side of the pressure plate away from the push plate, and a pressure sensor is fixedly installed on the forming clamp, with the pressure-bearing ball head in contact with the pressure sensor.

9. The formation apparatus for lithium battery manufacturing according to claim 8, characterized in that, A buffer plate is provided on the side of the pressure plate near the push plate, and multiple second springs are fixedly connected between the buffer plate and the pressure plate.

10. A lithium battery formation apparatus according to claim 1, characterized in that, A U-shaped tube is fixedly installed above the chemical clamp, and multiple spray heads are fixedly connected to the U-shaped tube.

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