Lithium battery cell pole piece crushing and separating device

Abstract

The utility model discloses a lithium battery cell pole piece crushing and separating device, which relates to the technical field of lithium battery recovery and comprises a storage box, a crushing chamber is fixedly mounted on the upper side of the storage box, a feed port is arranged on the upper side of the crushing chamber, a compression roller is rotatably connected in the feed port, and a discharge port is arranged on the upper side of the compression roller. And a plurality of cutting blades are arranged between the feeding port and the crushing chamber on the lower side and are all fixed to a rotating shaft, a left crushing roller and a right crushing roller are rotationally connected to the interior of the crushing chamber, and a plurality of magnetic belts are arranged on the lower sides of the crushing rollers. Through the combination of the compression roller and the sectioning blades and the multi-stage crushing and magnetic separation technology, the recovery efficiency and the equipment stability of the waste battery electrode slices are improved, the compression roller flattens the electrode slices, blockage is avoided, the sectioning blades efficiently cut the electrode slices, follow-up uniform crushing is ensured, magnetic separation is combined with a flotation method, the resource recovery rate is improved, and the production cost is reduced. And environmental pollution is reduced, and the concept of green recovery is met.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery recycling technology, and in particular to a lithium battery cell electrode crushing and separation device. Background Technology

[0002] Lithium-ion battery cell electrodes are one of the main components used to store electrical energy in lithium-ion batteries. They typically include positive and negative electrodes. The function of the electrodes is to store and release electrical energy through electrochemical reactions. The cell electrodes of lithium-ion batteries are one of their core components, directly affecting the performance and safety of the battery. By optimizing the positive and negative electrode materials, coating technology, and production processes, the energy density, cycle life, and safety of the battery can be improved.

[0003] Crushing and separating battery cell electrodes is a crucial step in lithium battery recycling. As lithium batteries reach the end of their lifespan, components such as positive and negative electrode materials, conductive agents, and separators need to be recycled and reused. Crushing and separation processes facilitate the efficient extraction of these materials. Currently, electrode crushing devices lack effective pressure rollers and cutting mechanisms, resulting in low crushing efficiency, irregular electrode sheet shapes, increased workload on subsequent sorting equipment, and reduced overall processing efficiency. Metal sorting efficiency is also insufficient, limited to single magnetic separation or sieving technologies, preventing the effective extraction of some valuable metal components during recycling. Therefore, this invention proposes a lithium battery cell electrode crushing and separation device to address the problems mentioned in the background. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for crushing and separating lithium battery cell electrodes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lithium battery cell electrode sheet crushing and separation device includes a storage box, a crushing chamber fixedly installed on the upper side of the storage box, a feeding port provided on the upper side of the crushing chamber, a pressure roller rotatably connected inside the feeding port, a plurality of cutting blades provided between the feeding port and the lower crushing chamber, the plurality of cutting blades being fixed on a rotating shaft, two crushing rollers rotatably connected inside the crushing chamber, a plurality of magnetic belts provided on the lower side of the crushing rollers, a pulley provided inside the magnetic belts, corresponding pulleys provided on both the left and right sides inside the pulleys, the plurality of pulleys on the same side being fixed on a rotating roller, the storage box being located below one rotating roller, and a collection box being provided below the other rotating roller.

[0007] Preferably, a drive device is installed inside the crushing chamber, the output shaft of the drive device is connected to a crushing roller, and a gear three is fixed at the front end of each of the two crushing rollers, and the two gear three mesh with each other.

[0008] Preferably, a channel is provided between the feed inlet and the lower crushing chamber, the cutting blade passes through the channel, and the channel is provided with cutting grooves corresponding to the cutting blade.

[0009] Preferably, a gear two is fixed at the front end of the rotating shaft connected to several of the cutting blades, and the gear two meshes with a lower gear three, and a gear one that meshes with the lower gear two is fixed at the front end of the pressure roller.

[0010] Preferably, a screen is provided on the upper side of the inside of the storage box, and a pull frame is fixed on the upper side of the screen, and the pull frame slides left and right on the storage box.

[0011] Preferably, a drive device is installed on one side of the storage box, the output shaft of the drive device is fixedly connected to a rotating roller on one side with several pulleys, and a scraper channel corresponding to several magnetic strips is fixed on the upper part of one side of the collection box, the lower opening of the scraper channel corresponds to the collection box, and a scraping groove corresponding to the surface of the magnetic strip is provided inside the scraper channel.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model adopts a design that combines pressure rollers and cutting blades to flatten and cut the electrode sheets entering the crushing chamber. The pressure rollers flatten the electrode sheets to ensure their uniformity and avoid blockage caused by irregular shapes, while the cutting blades cut the electrode sheets to lay the foundation for the subsequent crushing process. Compared with traditional equipment, this design can efficiently cut the electrode sheets and reduce energy waste in the crushing process, while ensuring that the electrode sheets can be crushed uniformly.

[0014] 2. This utility model uses multi-stage crushing. After the initial cutting, the electrode sheet will be further processed by crushing rollers, making the crushing process more thorough. The magnetic belt adsorbs metal particles and separates other particles by flotation, ensuring the efficient recovery of metal components in the electrode sheet. Compared with traditional single crushing equipment, this multi-stage crushing and sorting design effectively improves the sorting accuracy, especially significantly improving the processing capacity of complex waste batteries.

[0015] 3. The clean design of the magnetic belt and scraper channel in this utility model ensures the stability and durability of the equipment during long-term operation, reduces maintenance and failure rate. In terms of environmental protection, the combination of magnetic separation and flotation not only improves resource recycling efficiency, but also reduces secondary pollution to the environment, which is in line with the concept of green recycling.

[0016] In summary, by optimizing the crushing, cutting, pulverizing, and sorting processes, and combining modern magnetic sorting and flotation technologies, this device significantly improves the processing efficiency, recycling accuracy, and environmental friendliness of battery waste, providing a more efficient and green solution for the lithium battery recycling field. Attached Figure Description

[0017] Figure 1 This invention provides a schematic diagram of the structure of a lithium battery cell electrode crushing and separation device. Figure 1 ;

[0018] Figure 2 This invention provides a schematic diagram of the structure of a lithium battery cell electrode crushing and separation device. Figure 2 ;

[0019] Figure 3 This is a front structural diagram of a lithium battery cell electrode crushing and separation device proposed in this utility model.

[0020] Figure 4 This is a side cross-sectional view of a lithium battery cell electrode crushing and separation device proposed in this utility model.

[0021] In the diagram: 1. Storage bin; 2. Feed inlet; 3. Pressure roller; 4. Crushing roller; 5. Gear 1; 6. Gear 2; 7. Gear 3; 8. Magnetic belt; 9. Screen; 10. Pull frame; 11. Crushing chamber; 12. Cutting blade; 13. Collection box; 14. Pulley; 15. Scraper channel. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 A lithium battery cell electrode sheet crushing and separation device includes a storage box 1, a crushing chamber 11 fixedly installed on the upper side of the storage box 1, an inlet 2 provided on the upper side of the crushing chamber 11, a pressure roller 3 rotatably connected inside the inlet 2, and a plurality of cutting blades 12 provided between the inlet 2 and the lower crushing chamber 11. The plurality of cutting blades 12 are all fixed on a rotating shaft. Two crushing rollers 4 are rotatably connected inside the crushing chamber 11. The electrode sheets entering the crushing chamber 11 are flattened by the pressure roller 3, and the flattened electrode sheets are cut by the plurality of cutting blades 12 to facilitate subsequent crushing. After being cut, the electrode sheets enter the crushing chamber 11 and are crushed by the two crushing rollers 4 inside.

[0024] Furthermore, a drive device is installed inside the crushing chamber 11. The output shaft of the drive device is connected to a crushing roller 4. Gear 3 7 is fixed at the front end of both crushing rollers 4 and the two gear 3 7 mesh with each other. A channel is provided between the feed inlet 2 and the lower crushing chamber 11. The cutting blade 12 passes through the channel and the channel is provided with corresponding cutting grooves for the cutting blade 12. Gear 2 6 is fixed at the front end of the rotating shaft connected to several cutting blades 12 and meshes with a lower gear 3 7. Gear 1 5 is fixed at the front end of the pressure roller 3 and meshes with the lower gear 2 6. When the drive device inside the crushing chamber 11 is started, the crushing chamber 11 drives the connected crushing roller 4 to rotate and drives the upper meshing gear 2 6 through a gear 3 7. Gear 2 6 drives the connected rotating shaft to rotate. Several cutting blades 12 around the rotating shaft rotate to cut the flattened electrode sheet. The rotating shaft drives the upper meshing gear 1 5 through gear 2 6, so that the pressure roller 3 rotates to complete the input and flattening of the electrode sheet.

[0025] Furthermore, several magnetic belts 8 are provided on the lower side of the crushing roller 4, and a belt is provided on the inner side of the magnetic belt 8. Corresponding pulleys 14 are provided on both the left and right sides of the belt. Several pulleys 14 on the same side are fixed on a rotating roller. The storage box 1 is located below the rotating roller, and a collection box 13 is provided below the other rotating roller. A drive device is installed on one side of the storage box 1. The output shaft of the drive device is fixedly connected to a rotating roller on one side with several pulleys 14 installed. The drive device on the storage box 1 drives the rotating roller connected to it to rotate. The rotating roller rotates through the other rotating roller and the corresponding pulleys 14. The pulleys 14 move through the belt, causing the magnetic belt 8 outside the belt to move. When the electrode fragments after being cut and crushed fall into the storage box 1 below, the magnetic belt 8 is driven through the path of the crushed electrode particles. The magnetic belt 8 absorbs the magnetic particles.

[0026] Furthermore, a screen 9 is installed on the upper side of the inside of the storage bin 1, and a pull frame 10 is fixed on the upper side of the screen 9. The pull frame 10 slides left and right on the storage bin 1. A scraper channel 15 corresponding to several magnetic strips 8 is fixed on the upper side of one side of the collection bin 13. The lower opening of the scraper channel 15 corresponds to the collection bin 13, and the scraper channel 15 is provided with scraping grooves corresponding to the surface of the magnetic strips 8. When the magnetic strips 8 adsorb magnetic crushed particles, the magnetic strips 8 pass through the scraper channel 15, and the scraper channel 15 scrapes the surface of the passing magnetic strips 8. The surface is cleaned so that the magnetic electrode particles fall into the collection box 13 below through the scraper channel 15, while the non-magnetic particles fall into the storage box 1. The storage box 1 contains a special solvent or water. Using flotation, particles of different densities are screened. The smaller, broken particles float on the liquid surface, while the larger particles fall into the storage box 1. The screen 9 can be pulled by the pull frame 10, and the screen 9 separates the suspended particles. This can be separated again to reduce the pressure for subsequent fine separation.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lithium battery cell electrode crushing and separation device, comprising a storage bin (1), characterized in that, The storage box (1) is fixedly installed with a crushing chamber (11) on the upper side. The crushing chamber (11) is provided with a feed inlet (2) on the upper side. The feed inlet (2) is rotatably connected with a pressure roller (3). A number of cutting blades (12) are provided between the feed inlet (2) and the lower crushing chamber (11). The number of cutting blades (12) are all fixed on a rotating shaft. The crushing chamber (11) is rotatably connected with two crushing rollers (4) on the left and right sides. A number of magnetic belts (8) are provided on the lower side of the crushing rollers (4). A belt is provided on the inner side of the magnetic belts (8). A corresponding pulley (14) is provided on the left and right sides of the belt. The number of pulleys (14) on the same side are all fixed on a rotating roller. The storage box (1) is located below a rotating roller, and a collection box (13) is provided below the other rotating roller.

2. The lithium battery cell electrode crushing and separation device according to claim 1, characterized in that, The crushing chamber (11) is equipped with a drive device. The output shaft of the drive device is connected to a crushing roller (4). The front ends of the two crushing rollers (4) are fixed with gears (7), and the two gears (7) mesh with each other.

3. The lithium battery cell electrode crushing and separation device according to claim 1, characterized in that, A channel is provided between the feed inlet (2) and the lower crushing chamber (11), the cutting blade (12) passes through the channel, and the channel is provided with a cutting groove corresponding to the cutting blade (12).

4. The lithium battery cell electrode crushing and separation device according to claim 1, characterized in that, A gear 2 (6) is fixed at the front end of the rotating shaft connected to several of the cutting blades (12), and the gear 2 (6) meshes with a lower gear 3 (7), and a gear 1 (5) that meshes with the lower gear 2 (6) is fixed at the front end of the pressure roller (3).

5. The lithium battery cell electrode crushing and separation device according to claim 1, characterized in that, The storage bin (1) is equipped with a screen (9) on the upper side inside, and a pull frame (10) is fixed on the upper side of the screen (9), and the pull frame (10) slides left and right on the storage bin (1).

6. The lithium battery cell electrode crushing and separation device according to claim 1, characterized in that, A drive device is installed on one side of the storage box (1). The output shaft of the drive device is fixedly connected to a roller on one side with several pulleys (14). A scraper channel (15) corresponding to several magnetic strips (8) is fixed on the upper part of one side of the collection box (13). The lower opening of the scraper channel (15) corresponds to the collection box (13). The scraper channel (15) is provided with scraping grooves corresponding to the surface of the magnetic strips (8).

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