Binder processing and drying device for improving high-temperature storage stability of lithium ion battery

Abstract

The utility model discloses a binder processing and drying device capable of improving the high-temperature storage stability of lithium ion batteries, and relates to the technical field of battery binder drying, the binder processing and drying device comprises a drying barrel, the top of the drying barrel is communicated with a feeding pipe, the top of the feeding pipe is communicated with a feeding hopper, the top of the feeding hopper is connected with a storage pipe, and the top of the storage pipe is connected with a discharging pipe. A first breaking assembly, a second breaking assembly and a blocking assembly are sequentially arranged on the storage pipe from top to bottom, all adhesives are poured into the storage pipe and blocked through the blocking assembly, then the poured adhesives can be broken through rotation of the first breaking assembly and the second breaking assembly during pouring, the adhesives are blocked, and therefore the adhesives are prevented from being broken. According to the binder crushing device, the caking binder can be fully crushed, automatic discharging can be started without blocking after crushing is conducted for a period of time, then the caking binder can be crushed during feeding, and compared with the prior art, drying of the binder is more sufficient.

Description

Technical Field

[0001] This utility model relates to the field of battery binder drying technology, specifically to a binder processing and drying device for improving the high-temperature storage stability of lithium-ion batteries. Background Technology

[0002] Since active materials, conductive agents, and solvents cannot be directly bonded to metal electrodes, adhesives must be used to bond the various components together to form an adhesive material, which is then bonded to the metal foil.

[0003] During the preparation of lithium battery binders, the semi-finished product needs to be dried to remove moisture from the activated carbon lithium battery binder. CN219713919U discloses a drying device for processing activated carbon lithium battery binders, which includes a base; a swing motor is provided at the front end of the top surface of the base, and a rotating rod is fixedly connected to the output shaft of the swing motor; CN217876889U discloses a drying device for processing activated carbon lithium battery binders, which includes a base, two vertical plates are fixedly installed on one side of the top of the base, and a drying tank is rotatably installed between the two vertical plates. A No. 1 motor is fixedly installed on the top of the drying tank, and a connecting block is rotatably installed on the top of the drying tank. The output end of the No. 1 motor penetrates the drying tank and is fixedly connected to the connecting block. A spiral rod is fixedly installed at the bottom of the connecting block, and heating mesh is provided on the blades of the spiral rod.

[0004] Both of the aforementioned existing technologies use a spiral heating mesh to stir and lift the binder for drying. CN219713919U also includes a fan for auxiliary drying. However, because the binder will clump after absorbing moisture, it is difficult to break up the clumped binder using the spiral heating mesh. As a result, it is difficult to remove the moisture inside the clumped binder, which can easily lead to insufficient drying. Insufficient drying of the binder will prevent the battery from maintaining a stable structure when used in a high-temperature environment, thereby reducing the stability of the battery during high-temperature storage. In order to improve the high-temperature storage stability of lithium-ion batteries, it is necessary to improve the existing binder processing and drying equipment.

[0005] During the improvement process, it was found that both of the existing technologies mentioned above still have the problem of laborious material feeding. If the material is fed too quickly, it is easy to block the feed port. If the material is fed slowly, it is time-consuming and laborious. Therefore, the material feeding needs to be improved. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a binder processing and drying device for improving the high-temperature storage stability of lithium-ion batteries, thus solving the problems existing in the prior art.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a binder processing and drying device for improving the high-temperature storage stability of lithium-ion batteries, including a drying barrel, the top of the drying barrel being connected to a feed pipe, the top of the feed pipe being connected to a feed hopper, the top of the feed hopper being connected to a storage pipe, and the storage pipe being provided with a breaking component one, a breaking component two, and a blocking component from top to bottom, wherein the blocking component is used to block the binder;

[0008] The first breaking component includes a bearing rod mounted on the storage tube, a rotating shaft connected to the bearing rod, and crushing rods evenly arranged on the rotating shaft. The second breaking component includes a reduction motor mounted on the storage tube, the output shaft of the reduction motor connected to the rotating shaft, and crushing rods evenly arranged vertically on the rotating shaft. A transmission component is connected between the first and second rotating shafts, the second rotating shaft is connected to a circular plate, and the transmission component is connected to the circular plate. The transmission component is also connected to an anti-blocking cone, the top of which extends into the feed tube, and the transmission component is used to drive the anti-blocking cone to reciprocate up and down.

[0009] Preferably, the end of the first crushing rod away from the first rotating shaft is provided with a pointed cone, the end of the second crushing rod away from the second rotating shaft is provided with a pointed cone, and crushing cones are uniformly arranged circumferentially on the outer sides of the first crushing rod and the second crushing rod.

[0010] Preferably, the blocking assembly includes a baffle that extends through the left end of the storage tube, and the baffle is provided with an electrically operated telescopic rod connected to the storage tube.

[0011] Preferably, the first transmission component includes a driving bevel gear mounted on the second rotating shaft, a driven bevel gear meshing with the driving bevel gear, the driven bevel gear being sleeved on the transmission shaft, the transmission shaft being connected to a bearing seat mounted on the storage tube, and a transmission belt assembly connecting the transmission shaft and the first rotating shaft.

[0012] Preferably, the transmission assembly two includes a slanted rod connected to the anti-blocking cone, the right end of the slanted rod is connected to a sliding plate, and the sliding plate slides vertically through the top of the drying drum. A movable rod is connected to the sliding plate by a pin, and the movable rod is connected to one side of the right end of the circular plate by a pin. The slanted rod is located inside the drying drum, and the cross-section of the slanted rod is circular.

[0013] Preferably, a protective frame is connected between the drying barrel and the storage tube, and the driving bevel gear, driven bevel gear, circular plate, movable rod and sliding plate are all located inside the protective frame.

[0014] This invention provides a binder processing and drying apparatus for improving the high-temperature storage stability of lithium-ion batteries. Compared with the prior art, it has the following advantages:

[0015] 1. This binder processing and drying device for improving the high-temperature storage stability of lithium-ion batteries pours all the binder into the storage tube and blocks it with a blocking component. During pouring, the binder is effectively broken up by rotating in different directions using breaking components one and two. By blocking the binder, the clumps of binder are thoroughly broken up. After a period of breaking up, the blocking stops, and automatic feeding begins. This allows for the breaking up of clumps of binder during feeding, resulting in more thorough drying of the binder compared to existing technologies. This improves the stability of the battery under high-temperature conditions, thereby enhancing the stability of lithium-ion batteries during high-temperature storage.

[0016] 2. The binder processing and drying device for improving the high-temperature storage stability of lithium-ion batteries uses a transmission component 2 to drive the anti-blocking cone to move up and down during feeding, which ensures that the binder will not be blocked when passing through the feed pipe. This eliminates the need for workers to slowly pour the material, saving time and effort, and also avoids blockage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the first breaking component, the second breaking component, and the first transmission component of this utility model;

[0019] Figure 3 This is a schematic diagram of the breaking component one, breaking component two, and blocking component of this utility model;

[0020] Figure 4 This is a schematic diagram of the anti-blocking cone and transmission component two of this utility model.

[0021] In the diagram: 1. Drying barrel; 2. Feed pipe; 3. Feed hopper; 4. Storage pipe; 5. Bearing rod; 6. Rotating shaft one; 7. Crushing rod one; 8. Rotating shaft two; 9. Crushing rod two; 10. Cone one; 11. Cone two; 12. Crushing cone; 13. Baffle; 14. Electric telescopic rod; 15. Gear motor; 16. Driving bevel gear; 17. Driven bevel gear; 18. Drive shaft; 19. Bearing seat; 20. Drive belt assembly; 21. Anti-clogging cone; 22. Inclined rod; 23. Slide plate; 24. Movable rod; 25. Circular plate; 26. Protective frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] See Figures 1-4 This utility model provides the following two technical solutions:

[0024] First embodiment: A binder processing and drying device for improving the high-temperature storage stability of lithium-ion batteries, including a drying barrel 1 identical to the prior art, a feed pipe 2 connected to the top of the drying barrel 1, a feed hopper 3 connected to the top of the feed pipe 2, a storage pipe 4 connected to the top of the feed hopper 3, and a breaking component 1, a breaking component 2 and a blocking component arranged sequentially from top to bottom in the storage pipe 4, and the blocking component is used to block the binder.

[0025] The first breaking component includes a bearing rod 5 mounted on the storage tube 4, a rotating shaft 6 connected to the bearing rod 5, and crushing rods 7 evenly arranged on the rotating shaft 6. The second breaking component includes a reduction motor 15 mounted on the storage tube 4, the output shaft of the reduction motor 15 connected to a rotating shaft 8, and crushing rods 9 evenly arranged vertically on the rotating shaft 8. A transmission component 1 connects the rotating shaft 6 and the rotating shaft 8, allowing both the rotating shaft 6 and the rotating shaft 8 to rotate. The rotating shaft 8 is connected to a circular plate 25, and the circular plate 25 is connected to the transmission component 2, which is also connected to an anti-blocking cone 21. The top of the anti-blocking cone 21 extends into the feed tube 2, and the transmission component 2 is used to drive the anti-blocking cone 21 to reciprocate up and down, thus preventing blockage in the feed tube 2 during material feeding.

[0026] To improve the crushing effect, a pointed cone 10 is provided at the end of crushing rod 7 away from the rotating shaft 6, and a pointed cone 11 is provided at the end of crushing rod 9 away from the rotating shaft 8. Crushing cones 12 are uniformly arranged in a circumferential direction on the outer sides of crushing rod 7 and crushing rod 9.

[0027] The blocking assembly includes a baffle 13 that passes through the left end of the storage tube 4. An electric telescopic rod 14 connected to the storage tube 4 is provided on the baffle 13, so that the baffle 13 can move laterally to block or discharge materials.

[0028] The first transmission assembly includes a driving bevel gear 16 mounted on the second rotating shaft 8. A driven bevel gear 17 is meshed on the driving bevel gear 16. The driven bevel gear 17 is sleeved on the transmission shaft 18. The transmission shaft 18 is connected to a bearing seat 19 mounted on the storage tube 4. A transmission belt assembly 20 is connected between the transmission shaft 18 and the first rotating shaft 6. The transmission belt assembly 20 can be tensioned by a tensioning pulley to ensure tension. The driving bevel gear 16 drives the driven bevel gear 17 to rotate, causing the transmission shaft 18 to rotate on the bearing seat 19, thereby driving the first rotating shaft 6 to rotate through the transmission belt assembly 20.

[0029] The transmission assembly 2 includes a slanted rod 22 connected to the anti-clogging cone 21. The slanted rod 22 is designed to reduce adhesive residue on it. The right end of the slanted rod 22 is connected to a sliding plate 23, which slides vertically through the top of the drying drum 1. A movable rod 24 is connected to the sliding plate 23 via a pin. The movable rod 24 is connected to one side of the right end of the circular plate 25 via a pin. When the circular plate 25 rotates, the movable rod 24 rotates around the circular plate 25, which drives the sliding plate 23 to move up and down repeatedly. This causes the slanted rod 22 to drive the anti-clogging cone 21 to move up and down repeatedly. The slanted rod 22 is located inside the drying drum 1, and the cross-section of the slanted rod 22 is circular, which can further reduce adhesive residue on the top of the slanted rod 22.

[0030] The second embodiment differs from the first embodiment in that a protective frame 26 is connected between the drying drum 1 and the storage tube 4. The driving bevel gear 16, the driven bevel gear 17, the circular plate 25, the movable rod 24, and the sliding plate 23 are all located inside the protective frame 26, which can protect the above structures to prevent contact with workers and avoid accidents.

[0031] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0032] When in use, the reduction motor 15 is turned on. At this time, both crushing rod 7 and crushing rod 9 rotate, and the anti-blocking cone 21 moves up and down. All the binder to be dried is poured into the storage tube 4. After being stirred and squeezed by crushing rods 7 and 9 rotating in different directions, the clumps of binder can be broken up. Finally, the binder is blocked by the baffle 13. During the crushing process, the cones 10, 11, and 12 can assist in the crushing, which is more effective for crushing small pieces of binder. After crushing for a period of time, the baffle 13 is moved to the left. At this time, the binder can automatically fall into the drying barrel 1 through the feed hopper 3 and the feed pipe 2 for drying. When falling, the anti-blocking cone 21 moves back and forth in the feed pipe 2 to prevent blockage in the feed pipe 2. The binder with basically no clumps is then dried in the drying barrel 1. Compared with the existing technology, it can be dried more thoroughly.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A binder processing and drying device for improving the high-temperature storage stability of lithium-ion batteries, characterized by: Including dry barrel (1), the top of dry barrel (1) is communicated with feeding pipe (2), the top of feeding pipe (2) is communicated with feeding hopper (3), the top of feeding hopper (3) is connected with storage pipe (4), storage pipe (4) is sequentially provided with breaking assembly one, breaking assembly two and blocking assembly from top to bottom, and blocking assembly is used to block binder; Breaking assembly one includes bearing rod (5) arranged on storage pipe (4), shaft one (6) is connected on bearing rod (5), shaft one (6) is uniformly provided with broken rod one (7), breaking assembly two includes reduction motor (15) arranged on storage pipe (4), output shaft of reduction motor (15) is connected with shaft two (8), shaft two (8) is uniformly vertically provided with broken rod two (9), transmission assembly one is connected between shaft one (6) and shaft two (8), shaft two (8) is connected with round plate (25), transmission assembly two is connected on round plate (25), and transmission assembly two is connected with anti-blocking cone (21), the top of anti-blocking cone (21) extends into feeding pipe (2), and transmission assembly two is used to drive anti-blocking cone (21) reciprocating lifting.

2. The binder processing and drying device for improving high-temperature storage stability of lithium-ion batteries according to claim 1, characterized in that: The end of broken rod one (7) away from shaft one (6) is provided with pointed cone one (10), the end of broken rod two (9) away from shaft two (8) is provided with pointed cone two (11), the outer side of broken rod one (7) and broken rod two (9) is uniformly annularly provided with broken cone (12). 3.The binder processing and drying device for improving high-temperature storage stability of lithium-ion batteries according to claim 1, characterized in that: The blocking assembly includes a baffle (13) extending through the left end of the storage pipe (4), and the baffle (13) is provided with an electric telescopic rod (14) connected with the storage pipe (4).

4. The binder processing and drying device for improving high-temperature storage stability of lithium-ion batteries according to claim 1, characterized in that: The transmission assembly one includes a driving bevel gear (16) arranged on the shaft two (8), the driving bevel gear (16) is engaged with a driven bevel gear (17), the driven bevel gear (17) is sleeved on a transmission shaft (18), the transmission shaft (18) is connected with a bearing seat (19) arranged on the storage pipe (4), and the transmission shaft (18) and the shaft one (6) are connected with a transmission belt assembly (20). 5.The binder processing and drying device for improving high-temperature storage stability of lithium ion batteries according to claim 4, characterized in that: The transmission assembly two includes a slope rod (22) connected with the anti-blocking cone (21), the right end of the slope rod (22) is connected with a sliding plate (23), and the sliding plate (23) vertically slides through the top of the drying barrel (1), the sliding plate (23) is connected with a movable rod (24) through a pin shaft, the movable rod (24) is connected to one side of the right end of the round plate (25) through a pin shaft, the slope rod (22) is located in the drying barrel (1), and the cross section of the slope rod (22) is circular structure. 6.The binder processing and drying device for improving high-temperature storage stability of lithium ion batteries according to claim 5, characterized in that: The drying barrel (1) and the storage pipe (4) are connected with a protective frame (26), the driving bevel gear (16), the driven bevel gear (17), the round plate (25), the movable rod (24) and the sliding plate (23) are located in the protective frame (26).

Images