Drying equipment for lithium battery production

By designing a drying equipment for lithium battery production with multi-directional rotating and flipping components, the problem of low drying efficiency of existing equipment has been solved, achieving efficient and thorough drying of lithium batteries, ensuring no moisture residue inside the battery, and improving battery performance and safety.

CN120926709APending Publication Date: 2025-11-11JIANGXI CANHUI NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202511050159.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-29
Publication Date
2025-11-11

AI Technical Summary

Technical Problem

Existing drying equipment used in lithium battery production is inefficient, resulting in excessively long drying times for lithium batteries.

Method used

A drying device for lithium battery production was designed, which adopts a multi-directional rotating and flipping component, including a transmission component, a rotating component, a reciprocating component, a flipping component, and a rotation component. A motor drives a rotating rod to drive a fan to rotate and swing. Combined with the rotation and flipping of the display platform, multi-angle drying is achieved, and steam is dispersed by the blades.

Benefits of technology

It improves the efficiency of lithium battery drying, avoids water accumulation inside the battery due to incomplete drying, ensures that the battery does not come into contact with water during subsequent electrolyte filling, and extends the battery's service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses drying equipment for lithium battery production, and relates to the technical field of lithium battery production, the drying equipment comprises a drying base, a drying box body arranged at the top end of the drying base and used for drying a lithium battery, and a box door arranged on one side of the drying box body, and the inner bottom of the drying base is provided with a first motor; the output end of the first motor is connected with a rotating rod through a coupler. A lithium battery can be placed at the top end of a storage table, then a first motor is started, a rotating rod connected with the output end can rotate relative to the storage table, then the good drying effect can be achieved, meanwhile, the rotating rod can drive a first gear ring to rotate relative to a gear column, and the drying efficiency is improved. And meanwhile, a tooth column can rotate a connecting base and a fan through a second gear ring, and the fan can move on the surface of a guide rod through a connecting rod, so that back-and-forth swinging can be achieved, drying treatment can be conducted at different angles, omission during drying is avoided, and the drying efficiency can be improved.
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Description

Technical Field

[0001] This invention relates to the field of lithium battery production technology, specifically to a drying device for lithium battery production. Background Technology

[0002] As a core technology of modern energy storage, lithium batteries play a crucial role in achieving efficient energy conversion and storage through electrochemical reactions. They are widely used in transportation, electronics, energy storage, and other specialized fields. During the production of lithium batteries, they need to be dried using drying equipment. The core function of this drying equipment is to ensure that the battery materials are completely dehydrated in an oxygen-free environment through precise temperature and humidity control, thereby improving battery performance and safety.

[0003] The aforementioned drying equipment for lithium battery production typically dries lithium batteries directly by using an internal fan to heat the gas. However, the angle of the heated gas during drying is relatively fixed, which results in the drying process taking a long time and thus low efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a drying device for lithium battery production, so as to solve the problem of low efficiency of the lithium battery drying device mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drying device for lithium battery production, comprising a drying base, a drying chamber disposed at the top of the drying base for drying lithium batteries, and a door disposed on one side of the drying chamber. A No. 1 motor is installed on the inner bottom of the drying base, and the output end of the No. 1 motor is connected to a rotating rod via a coupling. A platform for placing and drying lithium batteries is disposed at the top of the rotating rod, and symmetrically distributed stabilizing sliders are disposed between the bottom end of the platform and the drying base.

[0006] The drying chamber is equipped with a fan for drying lithium batteries on its inner top, and the fans are evenly distributed on the inner top of the drying chamber. The shelf is circular in shape, and the surface of the shelf is provided with anti-slip protrusions to prevent the lithium batteries from moving.

[0007] Furthermore, the drying base is internally provided with a transmission component 1. The transmission component 1 includes a first gear ring disposed at one end of the platform, and the first gear ring is connected to a rotating rod through a reinforcing rod. A toothed column is engaged with one side of the first gear ring, and the toothed column is symmetrically distributed through the drying base. A second gear ring is disposed at the end of the toothed column away from the first gear ring and is slidably connected to the drying chamber through a T-shaped block.

[0008] Furthermore, a rotating assembly is provided on the inner side of the second gear ring. The rotating assembly includes a connecting seat welded to one side of the second gear ring, and the connecting seat is rotatably connected to the fan via a rotating shaft. The bottom end of the connecting seat is equipped with evenly distributed heating tubes.

[0009] Furthermore, a reciprocating assembly is provided at the top of the second gear ring. The reciprocating assembly includes a guide rod located at one end of the second gear ring and connected to the top of the drying chamber via a connecting rod. The guide rod and the fan are rotatably connected by a connecting rod via a hinge seat.

[0010] Furthermore, a second transmission assembly is provided on both sides of the top of the drying base near the placement table. The second transmission assembly includes an adjustment seat on both sides of the placement table. A telescopic cylinder is installed on the top of the adjustment seat. A moving plate is connected to the output end of the telescopic cylinder. An extension plate is provided on the top of the moving plate.

[0011] Furthermore, a flipping assembly is provided on one side of the extension plate. The flipping assembly includes a second motor installed on one side of the extension plate. The output end of the second motor is connected to a rotating rod via a coupling. A clamping plate is provided at the top of the rotating rod.

[0012] Furthermore, the extension plate is provided with a lifting assembly, which includes a screw that passes through the movable plate inside the extension plate. The screw is threadedly connected to the extension plate, and the screw is slidably connected to the adjustment seat via a slider. An adjustment gear is provided at the bottom end of the screw, and evenly distributed tooth blocks are provided inside the adjustment seat on the side near the adjustment gear.

[0013] Furthermore, a rotating assembly is provided at one end of the shelf, the rotating assembly including a rack welded to one end of the shelf, and the rack teeth are evenly distributed at one end of the shelf, and a circular gear is provided at the end of the shelf near the rack for meshing connection.

[0014] Furthermore, a rotating rod body is provided on one side of the circular gear and connected to the drying chamber via a bearing, and blades are provided on the surface of the rotating rod body.

[0015] Furthermore, symmetrically distributed guide blocks are provided between the adjusting seat and the moving plate, and the moving plate has a guide groove inside that matches the guide blocks.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The drying equipment for lithium battery production, when drying lithium batteries, firstly places the lithium batteries to be dried on the top of the platform, then closes the door and injects inert gas. At this time, the No. 1 motor is started, so that the rotation of the fan can be achieved through the start of the transmission component, the rotating component and the reciprocating component, so as to achieve multi-directional drying and avoid low efficiency during drying.

[0018] 2. This drying equipment for lithium battery production, after the lithium battery has been dried for a certain period of time, at which point the outer surface of the lithium battery is dried, can clamp and flip the dried lithium battery through the setting of the flipping component and the lifting component, so that the end of the lithium battery in contact with the platform is exposed, so that the end in contact with the platform is facing upwards for drying, avoiding water accumulation inside the battery box after drying, and ensuring that it will not come into contact with water during subsequent cell electrolyte injection, so that the drying equipment for lithium battery production has a better flipping drying effect when drying lithium batteries;

[0019] 3. In this drying equipment for lithium battery production, when lithium batteries are placed for drying, the rotating platform rotates the rotating component at one end. The rotating gear then rotates the blades through the rotating rod body, causing the blades to generate airflow and blow on the placed lithium batteries. This disperses the steam generated during drying, effectively improving the drying efficiency and preventing steam from adhering and affecting the service life. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the front view sectional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0022] Figure 3 This is a bottom view sectional structural diagram of the drying chamber of the present invention;

[0023] Figure 4 This is a top-view three-dimensional structural diagram of the drying base of the present invention;

[0024] Figure 5 This is a three-dimensional cross-sectional view of the drying base of the present invention;

[0025] Figure 6 This is a three-dimensional structural schematic diagram of the second gear ring of the present invention;

[0026] Figure 7 This is a three-dimensional structural diagram of the fan of the present invention;

[0027] Figure 8 This is a three-dimensional structural schematic diagram of the rotating component of the present invention;

[0028] Figure 9 This is a three-dimensional cross-sectional structural diagram of the lifting component of the present invention;

[0029] Figure 10 This is a three-dimensional cross-sectional view of the adjusting seat of the present invention;

[0030] Figure 11 This is a three-dimensional exploded view of the lifting component of the present invention.

[0031] In the diagram: 1. Drying base; 2. Drying chamber; 3. Chamber door; 4. Motor No. 1; 5. Rotating rod; 6. Placement platform; 7. Fan; 8. First gear ring; 9. Gear column; 10. Second gear ring; 11. Connecting seat; 12. Heating tube; 13. Guide rod; 14. Connecting rod; 15. Adjusting seat; 16. Telescopic cylinder; 17. Moving plate; 18. Extension plate; 19. Motor No. 2; 20. Rotating rod; 21. Clamping plate; 22. Screw; 23. Adjusting gear; 24. Gear block; 25. Rack; 26. Circular gear; 27. Rotating rod body; 28. Blade. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-11 The present invention provides a technical solution: a drying equipment for lithium battery production, including a drying base 1, a drying chamber 2 set at the top of the drying base 1 for drying lithium batteries, and a door 3 set on one side of the drying chamber 2. A first motor 4 is installed in the inner bottom of the drying base 1. The output end of the first motor 4 is connected to a rotating rod 5 through a coupling. A platform 6 for placing and drying lithium batteries is set at the top of the rotating rod 5. A symmetrically distributed stable slider is set between the bottom end of the platform 6 and the drying base 1.

[0034] The drying chamber 2 has a fan 7 for drying lithium batteries installed on its inner top, and the fans 7 are evenly distributed on the inner top of the drying chamber 2. The shelf 6 is circular in shape, and the surface of the shelf 6 is provided with anti-slip protrusions to prevent the lithium batteries from moving. The drying base 1 has a transmission component 1 inside. The transmission component 1 includes a first gear ring 8 located at one end of the shelf 6, and the first gear ring 8 is connected to the rotating rod 5 through a reinforcing rod. A gear post 9 is meshed on one side of the first gear ring 8, and the gear post 9 is symmetrically distributed through the drying base 1. A second gear ring 10 is provided at the end of the gear post 9 away from the first gear ring 8 and is slidably connected to the drying chamber 2 through a T-shaped block.

[0035] When the first gear ring 8 rotates, it can synchronously rotate the second gear ring 10 through the gear post 9. At this time, the rotation speed and rate of the second gear ring 10 and the first gear ring 8 are the same, so that the fan 7 can evenly dry the lithium battery.

[0036] A rotating assembly is provided on the inner side of the second gear ring 10. The rotating assembly includes a connecting seat 11 welded to one side of the second gear ring 10. The connecting seat 11 is rotatably connected to the fan 7 via a rotating shaft. The bottom end of the connecting seat 11 is equipped with evenly distributed heating tubes 12. The top end of the second gear ring 10 is provided with a reciprocating assembly. The reciprocating assembly includes a guide rod 13 connected to the top of the drying chamber 2 at one end of the second gear ring 10 via a connecting rod. The guide rod 13 is rotatably connected to the fan 7 via a hinge seat.

[0037] Because the guide rod 13 has a hexagonal structure and is welded to the inner top of the drying chamber 2 via a connecting rod, the uneven shape allows the connecting rod 14 to be pushed back and forth, thereby enabling the fan 7 to swing back and forth for drying, which improves the drying efficiency.

[0038] The specific operation is as follows: When the drying equipment for lithium battery production dries lithium batteries, the lithium batteries to be dried are first placed on top of the shelf 6, and then the door 3 is closed. At this time, the first motor 4 is started, which rotates the output rotating rod 5. Simultaneously, the rotating rod 5 rotates the shelf 6 connected to the top, allowing the shelf 6 to rotate and dry the placed lithium batteries. At the same time, the rotating rod 5 rotates the connected first gear ring 8, which in turn rotates the toothed column 9 on one side. Furthermore, the toothed column 9 rotates, which in turn rotates the second gear ring 10 connected to the top, allowing the second gear ring 10 to rotate the connecting seat. The connecting seat 11 rotates synchronously, and when the connecting seat 11 rotates, it can rotate the connected fan 7, thereby achieving uniform drying. At the same time, when the fan 7 rotates, it will drive the connecting rod 14 at the top to move on the surface of the guide rod 13. Since the guide rod 13 has a hexagonal structure, it can push back and forth as the connecting rod 14 moves, thereby rotating the fan 7 connected through the hinge seat. This allows the fan 7 to oscillate continuously while rotating, thereby drying at different angles, avoiding omissions during drying, and improving drying efficiency. This makes the lithium battery drying equipment not only have a good rotation effect but also a good oscillation drying effect when drying lithium batteries.

[0039] A transmission assembly two is provided on both sides of the top of the drying base 1 near the platform 6. The transmission assembly two includes an adjustment seat 15 on both sides of the platform 6. A telescopic cylinder 16 is installed on the top of the adjustment seat 15. The output end of the telescopic cylinder 16 is connected to a moving plate 17. An extension plate 18 is provided on the top of the moving plate 17. A flipping assembly is provided on one side of the extension plate 18. The flipping assembly includes a second motor 19 installed on one side of the extension plate 18. The output end of the second motor 19 is connected to a rotating rod 20 through a coupling. A clamping plate 21 is provided on the top of the rotating rod 20. A lifting assembly is provided inside the extension plate 18. The lifting assembly includes a screw 22 that passes through the moving plate 17 inside the extension plate 18. The screw 22 is threadedly connected to the extension plate 18, and the screw 22 is slidably connected to the adjustment seat 15 through a slider. An adjustment gear 23 is provided at the bottom of the screw 22. Evenly distributed tooth blocks 24 are provided inside the adjustment seat 15 near the adjustment gear 23.

[0040] The adjustment seats 15 are symmetrically distributed at the top of the drying base 1. One of them is equipped with a flipping component, while the other adjustment seat 15 is equipped with a return spring connected to the moving plate 17. Since the return spring is existing technology, it is not shown in the figure. This allows the transmission component 2 to continue to move to one side after the moving clamp, thereby realizing the operation of the flipping component and the lifting component.

[0041] The specific operation is as follows: After the lithium battery has been dried for a certain period of time, at which point the outer surface of the lithium battery is completely dried, the telescopic cylinder 16 can be activated, allowing the telescopic cylinder 16 to move the connected movable plate 17. This allows the movable plate 17 to slide on the top of the adjusting seat 15 and move the extension plate 18 located at the top. When the extension plate 18 moves, it drives the internally threaded screw 22 to move, and the adjusting gear 23 on the surface of the screw 22 moves synchronously. Since the adjusting seat 15 has evenly distributed toothed blocks 24 inside, the adjusting gear 23 rotates through the toothed blocks 24 during movement, thereby adjusting the gear 23... When rotating, the screw 22 can rotate, which in turn moves the extension plate 18 connected to the top thread, allowing the extension plate 18 to move upward. As the moving plate 17 moves, the clamping plate 21 on one side of the extension plate 18 can move upward synchronously after clamping the lithium battery. Then, by starting the second motor 19, the clamped lithium battery can be flipped, so that the end of the lithium battery in contact with the table 6 can face upward for drying. There is water inside the battery box, which ensures that it will not come into contact with water during subsequent cell electrolyte injection. This gives the drying equipment for lithium battery production a good flipping drying effect when drying lithium batteries.

[0042] A rotating assembly is provided at one end of the platform 6. The rotating assembly includes a rack 25 welded to one end of the platform 6, and the rack 25 is evenly distributed at one end of the platform 6. A circular gear 26 is provided at the end of the platform 6 near the rack 25. A rotating rod body 27 is provided on one side of the circular gear 26 and connected to the drying chamber 2 through a bearing. The surface of the rotating rod body 27 is provided with blades 28.

[0043] The blades 28 can blow the airflow inside the drying equipment, accelerate the diffusion of steam, and prevent steam from accumulating inside the battery casing, which would result in incomplete drying of the internal lithium battery cell assembly.

[0044] Symmetrically distributed guide blocks are provided between the adjusting seat 15 and the moving plate 17, and the moving plate 17 has a guide groove inside that matches the guide blocks.

[0045] The specific operation is as follows: When the lithium battery is placed for drying, the rack 25 at one end can be rotated by the rotating platform 6. The rack 25 rotates and rotates the circular gear 26. Then, the circular gear 26 rotates and rotates the blade 28 through the rotating rod body 27. The blade 28 generates airflow and blows the placed lithium battery, which disperses the steam generated during drying. This can effectively improve the drying efficiency and prevent steam from adhering and affecting the service life.

[0046] In summary, the core function of the drying equipment for lithium battery production is to ensure that battery materials are completely dehydrated in an oxygen-free environment through precise temperature and humidity control. This can be achieved by placing the lithium battery on top of the platform 6, and then starting the first motor 4, which causes the rotating rod 5 connected to the output end to rotate the platform 6, thus achieving a good drying effect. At the same time, the rotating rod 5 drives the first gear ring 8 to rotate the gear column 9, and the gear column 9 can rotate the connecting seat 11 and the fan 7 through the second gear ring 10. The fan 7 can move on the surface of the guide rod 13 through the connecting rod 14, thus achieving back-and-forth oscillation, which allows for drying at different angles, avoiding omissions during drying and improving drying efficiency. The contents not described in detail in this description are existing technologies known to those skilled in the art.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drying device for lithium battery production, comprising a drying base (1), a drying chamber (2) disposed at the top of the drying base (1) for drying lithium batteries, and a door (3) disposed on one side of the drying chamber (2), characterized in that: The inner bottom of the drying base (1) is equipped with a No. 4 motor. The output end of the No. 4 motor (4) is connected to a rotating rod (5) through a coupling. The top of the rotating rod (5) is provided with a platform (6) for placing and drying lithium batteries. The bottom of the platform (6) and the drying base (1) are provided with symmetrically distributed stable sliders. The drying chamber (2) is equipped with a fan (7) for drying lithium batteries on its inner top. One end of the fan (7) is equipped with evenly distributed heating tubes (12), and the fan (7) is evenly distributed on the inner top of the drying chamber (2). The shelf (6) is round in shape, and the surface of the shelf (6) is provided with anti-slip protrusions to prevent the lithium batteries from moving.

2. The drying equipment for lithium battery production according to claim 1, characterized in that: The drying base (1) is equipped with a transmission component. The transmission component includes a first gear ring (8) at one end of the platform (6), and the first gear ring (8) is connected to the rotating rod (5) through a reinforcing rod. A gear column (9) is meshed on one side of the first gear ring (8), and the gear column (9) runs through the drying base (1) and is symmetrically distributed. A second gear ring (10) is provided at the end of the gear column (9) away from the first gear ring (8) and is slidably connected to the drying box (2) through a T-shaped block.

3. The drying equipment for lithium battery production according to claim 2, characterized in that: The inner side of the second gear ring (10) is provided with a rotating component, which includes a connecting seat (11) welded to one side of the second gear ring (10), and the connecting seat (11) is rotatably connected to the fan (7) through a rotating shaft.

4. The drying equipment for lithium battery production according to claim 3, characterized in that: The top of the second gear ring (10) is provided with a reciprocating assembly, which includes a guide rod (13) located at one end of the second gear ring (10) and connected to the top of the drying chamber (2) via a connecting rod. The guide rod (13) and the fan (7) are rotatably connected by a connecting rod (14) via a hinge seat.

5. A drying device for lithium battery production according to claim 1, characterized in that: The top of the drying base (1) is provided with transmission components two on both sides near the table (6). The transmission components two include adjustment seats (15) on both sides of the table (6). The top of the adjustment seat (15) is equipped with a telescopic cylinder (16). The output end of the telescopic cylinder (16) is connected to a moving plate (17). The top of the moving plate (17) is provided with an extension plate (18).

6. A drying device for lithium battery production according to claim 5, characterized in that: A flipping assembly is provided on one side of the extension plate (18). The flipping assembly includes a second motor (19) installed on one side of the extension plate (18). The output end of the second motor (19) is connected to a rotating rod (20) via a coupling. A clamping plate (21) is provided at the top of the rotating rod (20).

7. A drying device for lithium battery production according to claim 6, characterized in that: The extension plate (18) is provided with a lifting assembly. The lifting assembly includes a screw (22) that passes through the movable plate (17) inside the extension plate (18). The screw (22) is threadedly connected to the extension plate (18), and the screw (22) is slidably connected to the adjusting seat (15) by a slider. The bottom end of the screw (22) is provided with an adjusting gear (23), and the side of the adjusting seat (15) near the adjusting gear (23) is provided with evenly distributed tooth blocks (24).

8. A drying device for lithium battery production according to claim 1, characterized in that: A rotating assembly is provided at one end of the platform (6). The rotating assembly includes a rack (25) welded to one end of the platform (6), and the rack (25) is evenly distributed at one end of the platform (6). A circular gear (26) is provided at the end of the platform (6) near the rack (25) for meshing connection.

9. A drying device for lithium battery production according to claim 8, characterized in that: One side of the circular gear (26) is provided with a rotating rod body (27) connected to the drying chamber (2) via a bearing, and the surface of the rotating rod body (27) is provided with blades (28).

10. A drying device for lithium battery production according to claim 5, characterized in that: The adjusting seat (15) and the moving plate (17) are provided with symmetrically distributed guide blocks, and the moving plate (17) has a guide groove inside that matches the guide blocks.