Lithium ion battery pole piece pre-lithiation device
By designing a lithium-ion battery electrode prelithiation device that includes components such as electric push rods, moving rods, triangle blocks, rotors, movable arms and clamps, the problem of designing multiple prelithiation devices of different sizes in the prior art is solved, and flexible processing and efficient production of batteries of different sizes are achieved.
Patent Information
- Application Number
- CN202420847838.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-04-23
AI Technical Summary
In order to adapt to lithium-ion batteries of different sizes in the prior art, multiple pre-lithiation devices of different sizes need to be designed and manufactured, which increases production costs and complexity, resulting in more expensive and inefficient battery production processes.
A pre-lithiation device for lithium-ion battery electrodes is designed, which includes components such as boxes, electric push rods, moving rods, triangle blocks, rotors, movable arms and clamp wheels. Through the synergy of these components, batteries of different sizes can be fixed, and the design of electric control and disassembly of components can be achieved to achieve flexible installation and processing of batteries.
The device can effectively fix batteries of different sizes and specifications, simplifying the battery production process, reducing production costs and complexity, and improving battery production efficiency and flexibility.
Smart Images
Figure CN222927554U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium - ion secondary batteries, in particular to a lithium - ion battery electrode pre - lithiumation device. Background Art
[0002] The pre - lithiumation of lithium - ion battery electrodes is a key step in the battery manufacturing process. It involves pre - lithiumating the positive or negative electrode materials of the battery to a certain extent during the manufacturing process, so that the battery can reach a stable working state more quickly during the initial charging, improving the battery performance and cycle life.
[0003] In the prior art, most of the pre - lithiumation of batteries can only pre - lithiumate batteries of a fixed size specification. To adapt to batteries of different sizes, it is necessary to design and manufacture multiple pre - lithiumation devices of different sizes, which will increase production costs and complexity, making the battery production process more expensive and inefficient. For this reason, a lithium - ion battery electrode pre - lithiumation device is proposed to solve the above problems. Summary of the Utility Model
[0004] To make up for the above deficiencies, the utility model provides a lithium - ion battery electrode pre - lithiumation device, aiming to improve the problems in the prior art that in order to adapt to batteries of different sizes, it is necessary to design and manufacture multiple pre - lithiumation devices of different sizes, which will increase production costs and complexity, making the battery production process more expensive and inefficient.
[0005] To achieve the above object, the utility model adopts the following technical scheme: A lithium - ion battery electrode pre - lithiumation device, including a box body, a box door is rotatably connected to the right side of the box body, a control screen is fixedly connected to the front side of the box body, a protective shell is slidably connected to the inside of the box body, an electric push rod is fixedly connected to the front side inside the protective shell, a moving rod is fixedly connected to the rear end of the electric push rod, triangular blocks are fixedly connected to both the left and right sides of the moving rod, a runner is rotatably connected to the far side of each of the two triangular blocks, a movable arm is rotatably connected to the outer circumference of the runner, a rotating shaft is rotatably connected to the middle of each of the two movable arms, a clamping wheel one is rotatably connected to the end of the movable arm far from the runner, a clamping wheel two is rotatably connected to the end of the moving rod far from the electric push rod, a driving component is arranged inside the box body, a telescopic rod is fixedly connected to the inner top of the box body, a processing block is slidably connected to the bottom of the telescopic rod, and a disassembly component is arranged inside the telescopic rod.
[0006] Further, the disassembly component includes a lever which is slidably connected inside the telescopic rod. A compression spring is fixedly connected to the top of the lever. A sliding rod is slidably connected inside the lever. The compression spring is sleeved on the outer periphery of the sliding rod. A cross bar is fixedly connected to the bottom of the lever. Rotating rods are rotatably connected to both the left and right ends of the cross bar. One end of the rotating rod away from the cross bar is rotatably connected to a connecting block. A support rod is slidably connected inside the connecting block. A clamping block is fixedly connected to the bottom of the connecting block.
[0007] Further, the moving component includes a motor which is fixedly connected to the left side of the box body. The output end of the motor is fixedly connected to a threaded rod. An active block is threadedly connected to the outer periphery of the threaded rod.
[0008] Further, a handle is fixedly connected to the right side of the box door.
[0009] Further, a clamping groove is formed inside the processing block. The clamping block is slidably connected inside the clamping groove.
[0010] Further, the top of the active block is fixedly connected to the bottom of the protective shell.
[0011] Further, the top of the sliding rod is fixedly connected to the inner top of the telescopic rod.
[0012] Further, both of the two triangular blocks are fixedly connected inside the protective shell.
[0013] The utility model has the following beneficial effects:
[0014] 1. In the utility model, the electric push rod drives the moving rod to move. When the moving rod moves, the triangular block will move accordingly, and the rotating wheel will move along the side surface of the triangular block. When the rotating wheel rotates, it will drive the moving arm to move, and when the moving arm moves, the clamping wheel will move together. The two clamping wheels I and one clamping wheel I fix the battery from three directions and can also fix batteries of different sizes and specifications. The electric control of the threaded rod to move enables the protective shell to move better, facilitating the cooperation of the staff to put in the battery.
[0015] 2. In the utility model, the lever drives the cross plate to move, causing the two rotating rods to rotate accordingly under the influence of the movement of the cross plate. Thus, when the rotating rods rotate, a moving force will be exerted on the connecting block. Since the connecting block is connected to the clamping block, when the connecting block moves, it can drive the clamping block to move together, making the installation and disassembly of the processing block more convenient. Description of the Drawings
[0016] Figure 1 is a three-dimensional schematic diagram of a lithium-ion battery electrode sheet prelithiation device proposed by the utility model;
[0017] Figure 2 Schematic diagram of the threaded rod of a lithium-ion battery electrode pre-lithiation device proposed by the present utility model;
[0018] Figure 3 Schematic diagram of the electric push rod of a lithium-ion battery electrode pre-lithiation device proposed by the present utility model;
[0019] Figure 4 Schematic diagram of the clamping block of a lithium-ion battery electrode pre-lithiation device proposed by the present utility model.
[0020] Legend description:
[0021] 1. Box body; 2. Control panel; 3. Box door; 4. Handle; 5. Motor; 6. Threaded rod; 7. Movable block; 8. Protective shell; 9. Electric push rod; 10. Moving rod; 11. Triangular block; 12. Runner; 13. Movable arm; 14. Rotating shaft; 15. Clamping wheel 1; 16. Clamping wheel 2; 17. Telescopic rod; 18. Poking rod; 19. Slide bar; 20. Compression spring; 21. Cross bar; 22. Rotating rod; 23. Connecting block; 24. Support rod; 25. Clamping block; 26. Processing block. Specific implementation manners
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] Refer to Figure 1 - Figure 3, an embodiment provided by the present utility model: a lithium-ion battery electrode pre-lithiation device, which includes a box body 1. A box door 3 is rotatably connected to the right side of the box body 1. A control screen 2 is fixedly connected to the front side of the box body 1. A protective shell 8 is slidably connected inside the box body 1. An electric push rod 9 is fixedly connected to the front side inside the protective shell 8. A moving rod 10 is fixedly connected to the rear end of the electric push rod 9. Triangular blocks 11 are fixedly connected to both the left and right sides of the moving rod 10. A rotating wheel 12 is rotatably connected to the far side of each of the two triangular blocks 11. An active arm 13 is rotatably connected to the outer periphery of the rotating wheel 12. A rotating shaft 14 is rotatably connected to the middle of each of the two active arms 13. One end of the active arm 13 away from the rotating wheel 12 is rotatably connected to a clamping wheel one 15. One end of the moving rod 10 away from the electric push rod 9 is rotatably connected to a clamping wheel two 16. A driving component is provided inside the box body 1. A telescopic rod 17 is fixedly connected to the inner top of the box body 1. A processing block 26 is slidably connected to the bottom of the telescopic rod 17. A disassembly component is provided inside the telescopic rod 17. The moving component includes a motor 5. The motor 5 is fixedly connected to the left side of the box body 1. The output end of the motor 5 is fixedly connected to a threaded rod 6. An active block 7 is threadedly connected to the outer periphery of the threaded rod 6. A handle 4 is fixedly connected to the right side of the box door 3. The top of the active block 7 is fixedly connected to the bottom of the protective shell 8. Both of the two triangular blocks 11 are fixedly connected inside the protective shell 8.
[0024] Specifically, the box body 1 is used to provide a working space. The control screen 2 is used to provide control for the operation of internal components. The box door 3 is used to protect the box body 1. The handle 4 is used to open and close the box door 3. The protective shell 8 is used to protect the internal parts. The electric push rod 9 is used to drive the moving rod 10 to move. The triangular blocks 11 on both the left and right sides of the moving rod 10 are connected to the rotating wheel 12. When the triangular block 11 moves, the rotating wheel 12 will roll along the outer periphery of the triangular block 11, and the rolling of the rotating wheel 12 will cause the active arm 13 to rotate around the rotating shaft 14. The rotating shaft 14 is used to provide the axis for the rotation of the active arm 13. The active arm 13 is used to connect the rotating wheel 12 and the clamping wheel one 15. One end of the moving rod 10 is rotatably connected to the clamping wheel two 16. Different-sized and -specification batteries can be clamped by the two clamping wheels one 15 and the clamping wheel two 16. The telescopic rod 17 is used to telescopically move and drive the processing block 26 to move, so as to perform lithiumation treatment on the electrodes of the battery. The motor 5 is used to control the rotation of the threaded rod 6. The active block 7 is threadedly connected to the outer periphery of the threaded rod 6. When the threaded rod 6 rotates, the active block 7 drives the protective shell 8 to move, thereby facilitating the movement of the battery.
[0025] Refer to Figure 1 and Figure 4, the disassembly component includes a lever 18, the lever 18 is slidably connected inside the telescopic rod 17, the top of the lever 18 is fixedly connected with a compression spring 20, a slide rod 19 is slidably connected inside the lever 18, the compression spring 20 is sleeved on the outer periphery of the slide rod 19, the bottom of the lever 18 is fixedly connected with a cross bar 21, both the left and right ends of the cross bar 21 are rotatably connected with a rotating rod 22, one end of the rotating rod 22 away from the cross bar 21 is rotatably connected with a connecting block 23, a support rod 24 is slidably connected inside the connecting block 23, the bottom of the connecting block 23 is fixedly connected with a clamping block 25, a clamping groove is formed inside the processing block 26, the clamping block 25 is slidably connected inside the clamping groove, and the top of the slide rod 19 is fixedly connected to the inner top of the telescopic rod 17.
[0026] Specifically, the lever 18 is used to drive the cross bar 21 to move, the compression spring 20 is used to provide a thrust for the reset movement to push the lever 18 to move, the rotating rods 22 on both sides of the cross bar 21 are used to generate rotation to make the connecting block 23 move, the connecting block 23 is connected to the clamping block 25, so that the connecting block 23 can drive the clamping block 25 to move together when moving, the slide rod 19 is used to support the movement of the lever 18, and the support rod 24 is used to support the sliding of the connecting block 23.
[0027] Working principle: When pre-lithiating the battery, open the box door 3 through the handle 4, start the motor 5 in the normal installation direction, and make the motor 5 control the rotation of the threaded rod 6. When the threaded rod 6 rotates, the movable block 7 threadedly connected to it will move along the threaded rod 6, and when the movable block 7 moves, it will drive the protective shell 8 to move together. When the protective shell 8 moves to the box door 3, then start the electric push rod 9, and drive the moving rod 10 to contract and move through the electric push rod 9. When the moving rod 10 contracts and moves, the rotating wheel 12 rolls along the triangular block 11, and when the rotating wheel 12 rolls, it will make the movable arm 13 rotate around the second clamping wheel 16. Then place the battery between the two first clamping wheels 15 and one second clamping wheel 16, and then start the electric push rod 9 to make the electric push rod 9 drive the moving rod 10 to extend and move. When the moving rod 10 extends and moves, the rotating wheel 12 rolls along the side surface of the triangular block 11 to make the movable arm 13 rotate around the rotating shaft 14, and the two movable arms 13 rotate towards each other. After fixing the battery through the two first clamping wheels 15 and the second clamping wheel 16, start the motor 5 to reverse again. When the motor 5 reverses, the movable block 7 drives the protective shell 8 to move to the bottom of the processing block 26. Then start the telescopic rod 17 to telescopically move, so that the processing block 26 contacts the electrode of the battery for lithiumation pretreatment. When the battery specification changes and the processing block 26 needs to be replaced, just toggle the lever 18 upwards. The lever 18 moves along the sliding rod 19 and compresses the compression spring 20. When the lever 18 moves, it makes the cross bar 21 move together. When the cross bar 21 moves, the two rotating rods 22 will rotate in opposite directions. When the two rotating rods 22 rotate in opposite directions, they will move along the support rod 24 through the connecting block 23 to make the two clamping blocks 25 slide out from the inside of the processing block 26, so that the processing block 26 can be disassembled and replaced. During installation, just sleeve the processing block 26 on the outer periphery of the bottom of the telescopic rod 17. Ensure that the clamping blocks 25 can slide into the card slots of the processing block 26, then release the lever 18. When the sliding rod 19 loses pressure, it will reset and move to push the lever 18 to move, so that the two clamping blocks 25 slide into the card slots to fix the processing block 26.
[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A lithium-ion battery electrode pre-lithiation device, comprising a housing (1), characterized in that: The right side of the box body (1) is rotatably connected to a box door (3), the front side of the box body (1) is fixedly connected to a control panel (2), the interior of the box body (1) is slidably connected to a protective shell (8), the front side of the interior of the protective shell (8) is fixedly connected to an electric push rod (9), the rear end of the electric push rod (9) is fixedly connected to a moving rod (10), the left and right sides of the moving rod (10) are fixedly connected to triangular blocks (11), the far sides of the two triangular blocks (11) are rotatably connected to a rotating wheel (12), the outer periphery of the rotating wheel (12) is rotatably connected to an active A movable arm (13), the middle parts of the two movable arms (13) are rotatably connected to a rotating shaft (14), one end of the movable arm (13) away from the rotating wheel (12) is rotatably connected to a clamping wheel (15), and one end of the moving rod (10) away from the electric push rod (9) is rotatably connected to a clamping wheel (16), a driving component is provided inside the box body (1), a telescopic rod (17) is fixedly connected to the inner top of the box body (1), a processing block (26) is slidably connected to the bottom of the telescopic rod (17), and a disassembly component is provided inside the telescopic rod (17).
2. A lithium-ion battery pole piece pre-lithiation device according to claim 1, characterized in that: The disassembly assembly comprises a lever (18), the lever (18) is slidably connected to the inside of the telescopic rod (17), the top of the lever (18) is fixedly connected with a compression spring (20), the inside of the lever (18) is slidably connected with a slide rod (19), the compression spring (20) is sleeved on the outer periphery of the slide rod (19), the bottom of the lever (18) is fixedly connected with a cross bar (21), the left and right ends of the cross bar (21) are both rotatably connected with a rotating rod (22), one end of the rotating rod (22) away from the cross bar (21) is rotatably connected with a connecting block (23), the inside of the connecting block (23) is slidably connected with a support rod (24), and the bottom of the connecting block (23) is fixedly connected with a clamping block (25).
3. A lithium-ion battery pole piece pre-lithiation device according to claim 2, characterized in that: The driving assembly comprises a motor (5), the motor (5) is fixedly connected to the left side of the box (1), the output end of the motor (5) is fixedly connected to a threaded rod (6), and the outer periphery of the threaded rod (6) is threadedly connected to a movable block (7).
4. A lithium-ion battery pole piece pre-lithiation device according to claim 1, characterized in that: A handle (4) is fixedly connected to the right side of the box door (3).
5. A lithium-ion battery pole piece pre-lithiation device according to claim 2, characterized in that: A card slot is provided inside the processing block (26), and the card block (25) is slidably connected in the card slot.
6. A lithium-ion battery pole piece pre-lithiation device according to claim 3, characterized in that: The top of the movable block (7) is fixedly connected to the bottom of the protective shell (8).
7. A lithium-ion battery pole piece pre-lithiation device according to claim 2, characterized in that: The top of the sliding rod (19) is fixedly connected to the inner top of the telescopic rod (17).
8. A lithium-ion battery pole piece pre-lithiation device according to claim 1, characterized in that: The two triangular blocks (11) are both fixedly connected inside the protective shell (8).