Recycling device for positive electrode of regenerated lithium iron phosphate battery

Abstract

The utility model belongs to the technical field of lithium iron phosphate battery positive electrode material recovery, and discloses a regenerated lithium iron phosphate battery positive electrode recovery device which comprises a recovery processing box, a partition plate is installed on the upper wall of the recovery processing box, a containing cylinder is installed on the upper wall of the partition plate in an inserted mode, a discharging groove is formed in the upper wall of the partition plate, and a motor is installed on the inner wall of the recovery processing box. According to the lithium iron phosphate battery positive plate storage device, the storage barrel and the fixing column are arranged, so that the lithium iron phosphate battery positive plates can be placed in the storage barrel in a coiled mode, the motor can be started to drive the fixing column to rotate, and the lithium iron phosphate battery positive plates can be placed in the storage barrel in a coiled mode. The positive plate of the lithium iron phosphate battery is gradually unfolded and then wound, so that all residual electrolyte on the positive plate of the lithium iron phosphate battery can be treated without cutting the positive plate of the lithium iron phosphate battery, and the lithium iron phosphate battery is very convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of recycling of cathode materials for lithium iron phosphate batteries, and specifically relates to a recycling device for regenerating the cathode of lithium iron phosphate batteries. Background Art

[0002] With the rapid development of the new energy vehicle industry, a large number of waste power batteries are scrapped, which will inevitably cause a huge waste of resources and serious environmental pollution. Therefore, recycling waste lithium iron phosphate power batteries is of great significance for the sustainable development of China's new energy electric vehicle industry;

[0003] In a recycling and regeneration device for cathode materials of waste lithium iron phosphate batteries proposed in the publication number CN216872095U, the cathode sheet of the lithium iron phosphate battery is taken out from the battery cell of the waste lithium battery and unfolded and sequentially inserted into the inside of the unfolding cavity. Then, the electrolyte remaining on the cathode sheet is volatilized by a heating rod. At the same time, the air with the volatilized electrolyte will enter the inside of the condensation cavity through a connecting conduit and be condensed into a liquid electrolyte when it meets cold, effectively avoiding the pollution of the environment and the damage to the human body caused by the volatilized electrolyte, and being more environmentally friendly and safer;

[0004] However, in the above document, the cathode sheet of the lithium iron phosphate battery is placed on the cathode sheet rack. However, due to the limited length of the cathode sheet rack, the cathode sheet of the lithium iron phosphate battery needs to be cut during placement, which is rather cumbersome. Summary of the Invention

[0005] The purpose of the utility model is to provide a recycling device for regenerating the cathode of lithium iron phosphate batteries to solve the problem that the cathode sheet of the lithium iron phosphate battery is placed on the cathode sheet rack in the above background art, but due to the limited length of the cathode sheet rack, the cathode sheet of the lithium iron phosphate battery needs to be cut during placement, which is rather cumbersome.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A recycling device for regenerating the cathode of lithium iron phosphate batteries, including a recycling and treatment box, a partition is installed on the upper wall of the recycling and treatment box, a placement cylinder is inserted and installed on the upper wall of the partition, and a discharge slot is opened on the upper wall of the partition;

[0007] A motor is installed on the inner wall of the recycling and treatment box, the motor is electrically connected to an external power supply, a rotating disk is installed at the output end of the motor, and a fixing column is installed on the upper wall of the rotating disk, and the fixing column is arranged below the discharge slot;

[0008] The cathode sheet of the lithium iron phosphate battery is inserted and installed in the placement cylinder, and the end of the cathode sheet of the lithium iron phosphate battery is wound and connected to the fixing column;

[0009] A ventilation hole is formed in the side wall of the recycling and treatment box, and an air extraction mechanism is inserted and installed in the ventilation hole. The output end of the air extraction mechanism is connected to an external condensation device.

[0010] As a preferred embodiment of the present invention, the air extraction mechanism includes an air extraction fan and a transfer pipe. The air extraction fan is installed on the side wall of the recycling and treatment box and is electrically connected to an external power source. The input end of the air extraction fan is inserted and installed in the ventilation hole, and the output end of the air extraction fan is installed with a transfer pipe, and the transfer pipe is connected to an external condensation device.

[0011] As a preferred embodiment of the present invention, a clamping groove is formed in the side wall of the fixed column. A support rod is installed on the upper wall of the rotating disk. The support rod is arranged in the clamping groove, and the end of the positive electrode plate of the lithium iron phosphate battery can be inserted into the clamping groove.

[0012] As a preferred embodiment of the present invention, a heating plate is installed in the inner cavity of the recycling and treatment box. The heating plate is electrically connected to an external power source. A material receiving groove is installed on the upper wall of the heating plate, and the material receiving groove is arranged below the placing cylinder.

[0013] As a preferred embodiment of the present invention, a top ring is sleeved on the outside of the fixed column. The top ring can slide up and down on the outside of the fixed column. One end of a connecting rod is installed on the side wall of the top ring, and the other end of the connecting rod penetrates through the upper wall of the partition plate and is installed with a pull rod.

[0014] As a preferred embodiment of the present invention, a scraper is installed on the lower wall of the partition plate. There are two scrapers in total. The two scrapers are respectively arranged on both sides of the discharge chute, and both scrapers can be attached to the side wall of the positive electrode plate of the lithium iron phosphate battery.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By setting the placing cylinder and the fixed column, the positive electrode plate of the lithium iron phosphate battery can be placed in a roll in the placing cylinder. When volatilizing the residual electrolyte on its outside, the motor can be started to drive the fixed column to rotate, gradually unfold and then wind the positive electrode plate of the lithium iron phosphate battery, so that all the residual electrolyte above the positive electrode plate of the lithium iron phosphate battery can be processed without cutting the positive electrode plate of the lithium iron phosphate battery, which is very convenient;

[0017] In addition, an air extraction fan is also arranged on the side wall of the recycling and treatment box of the present device to prevent the gas generated by the volatilization of the electrolyte from remaining in the recycling and treatment box, so as to avoid the staff inhaling toxic air and affecting their physical health when they need to take out the positive electrode plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of this patent;

[0019] Figure 2 This is a side cross-sectional view of the patent.

[0020] In the figure: 1 recycling treatment box, 2 partition board, 3 placing cylinder, 4 discharge chute, 5 motor, 6 rotating disk, 7 fixed column, 8 positive electrode plate of lithium iron phosphate battery, 9 ventilation hole, 10 air extraction mechanism, 11 air extractor fan, 12 transfer pipe, 13 clamping groove, 14 support rod, 15 heating plate, 16 material receiving groove, 17 top ring, 18 connecting rod, 19 pull rod, 20 scraper. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figure 1-2 , the present invention provides a technical solution:

[0023] In this technical solution, a recycling device for the positive electrode of a regenerated lithium iron phosphate battery includes a recycling treatment box 1. A partition board 2 is installed on the upper wall of the recycling treatment box 1. A placing cylinder 3 is inserted and installed on the upper wall of the partition board 2. A discharge chute 4 is opened on the upper wall of the partition board 2;

[0024] A motor 5 is installed on the inner wall of the recycling treatment box 1. The motor 5 is electrically connected to an external power source. A rotating disk 6 is installed at the output end of the motor 5. A fixed column 7 is installed on the upper wall of the rotating disk 6. The fixed column 7 is arranged below the discharge chute 4;

[0025] A positive electrode plate 8 of a lithium iron phosphate battery is inserted and installed in the placing cylinder 3. The end of the positive electrode plate 8 of the lithium iron phosphate battery is wound and connected to the fixed column 7;

[0026] A ventilation hole 9 is opened on the side wall of the recycling treatment box 1. An air extraction mechanism 10 is inserted and installed in the ventilation hole 9. The output end of the air extraction mechanism 10 is connected to an external condensation device;

[0027] In this technical solution, the positive electrode plate 8 of the lithium iron phosphate battery can be put into the placing cylinder 3 in a roll. It only needs to insert one end of the positive electrode plate 8 of the lithium iron phosphate battery into the clamping groove 13 on the fixed column 7. Compared with the method of cutting and then putting it into the positive electrode plate rack proposed in the background technology, this device does not need to cut the positive electrode plate 8 of the lithium iron phosphate battery, which is very convenient, saves the time required for cutting, and improves the recycling efficiency of the positive electrode plate 8 of the lithium iron phosphate battery;

[0028] The placement cylinder 3 in this text is a mesh cylinder, and a through groove communicating with the discharge chute 4 is provided on the side wall of the placement cylinder 3, so that the positive electrode plate 8 of the lithium iron phosphate battery can penetrate the placement cylinder 3 and be connected to the fixed column 7, and the electrolyte on the positive electrode plate 8 of the lithium iron phosphate battery can also flow into the material receiving groove 16 through the placement cylinder 3.

[0029] In some technical solutions, the air extraction mechanism 10 includes an air extraction fan 11 and a transfer pipe 12. The air extraction fan 11 is installed on the side wall of the recycling and treatment box 1. The air extraction fan 11 is electrically connected to an external power supply. The input end of the air extraction fan 11 is inserted and installed in the ventilation hole 9, and the output end of the air extraction fan 11 is installed with a transfer pipe 12, and the transfer pipe 12 is connected to an external condensation device.

[0030] In this technical solution, after the air extraction fan 11 in the air extraction mechanism 10 is started, the air in the recycling and treatment box 1 can be pumped outwards and sent into the external condensation device through the transfer pipe 12, so that the electrolyte can follow the air into the external condensation device after volatilization and be condensed into a liquid electrolyte, effectively avoiding the pollution of the environment and the damage to the human body caused by the volatilized electrolyte, which is more environmentally friendly and safer;

[0031] In addition, by setting the air extraction fan 11, it can also effectively avoid the gas residue generated by the volatilization of the electrolyte in the recycling and treatment box 1, and prevent the staff from inhaling toxic air when taking out the positive electrode plate 8 of the lithium iron phosphate battery, which affects their physical health.

[0032] In some technical solutions, a clamping groove 13 is provided on the side wall of the fixed column 7. A support rod 14 is installed on the upper wall of the rotating disk 6. The support rod 14 is arranged in the clamping groove 13, and the end of the positive electrode plate 8 of the lithium iron phosphate battery can be inserted into the clamping groove 13.

[0033] In this technical solution, by setting the clamping groove 13 and the support rod 14, the end of the positive electrode plate 8 of the lithium iron phosphate battery can be clamped, which is convenient for fixing the positive electrode plate 8 of the lithium iron phosphate battery.

[0034] In some technical solutions, a heating plate 15 is installed in the inner cavity of the recycling and treatment box 1. The heating plate 15 is electrically connected to an external power supply. A material receiving groove 16 is installed on the upper wall of the heating plate 15, and the material receiving groove 16 is arranged below the placement cylinder 3.

[0035] In this technical solution, the heating plate 15 proposed in this text is a prior art. After being powered on, it can generate heat, so that the temperature in the recycling and treatment box 1 rises, and the residual electrolyte on the positive electrode plate 8 of the lithium iron phosphate battery volatilizes;

[0036] The provision of the material receiving groove 16 can prevent the electrolyte from flowing onto the inner wall of the recycling and treatment tank 1, avoiding contamination of the device by the electrolyte. At the same time, since the material receiving groove 16 is provided above the heating plate 15 and the two are in close contact with each other, the heating plate 15 can quickly heat the material receiving groove 16, causing the electrolyte that has fallen into the material receiving groove 16 to volatilize.

[0037] In some technical solutions, a top ring 17 is sleeved outside the fixed column 7. The top ring 17 can slide up and down outside the fixed column 7. One end of a connecting rod 18 is installed on the side wall of the top ring 17, and the other end of the connecting rod 18 penetrates through the upper wall of the partition plate 2 and is installed with a pull rod 19.

[0038] In this technical solution, when the positive electrode plate 8 of the lithium iron phosphate battery is processed and there is no electrolyte residue, the pull rod 19 can be pulled upward to drive the top ring 17 to move upward, pushing the positive electrode plate 8 of the lithium iron phosphate battery out of the discharge slot 4 and outside the recycling and treatment tank 1, facilitating the staff to take the positive electrode plate 8 of the lithium iron phosphate battery.

[0039] In some technical solutions, a scraper 20 is installed on the lower wall of the partition plate 2. There are two scrapers 20 in total. The two scrapers 20 are respectively arranged on both sides of the discharge slot 4, and both scrapers 20 can be in close contact with the side wall of the positive electrode plate 8 of the lithium iron phosphate battery.

[0040] In this technical solution, the scraper 20 can scrape off the electrolyte remaining on the side wall of the positive electrode plate 8 of the lithium iron phosphate battery, causing it to fall into the material receiving groove 16, improving the cleaning effect of the electrolyte.

[0041] Working principle: The positive electrode plate 8 of the lithium iron phosphate battery is placed in a roll in the placing cylinder 3, and then one end of the positive electrode plate 8 of the lithium iron phosphate battery is clamped in the card slot 13 on the fixed column 7;

[0042] Start the motor 5, the exhaust fan 11 and the heating plate 15, so that the motor 5 drives the fixed column 7 to rotate slowly to wind the positive electrode plate 8 of the lithium iron phosphate battery. During this process, the heating plate 15 is energized to generate heat, raising the temperature inside the recycling and treatment tank 1, causing the electrolyte remaining on the positive electrode plate 8 of the lithium iron phosphate battery to volatilize. The volatilized electrolyte will be drawn into an external condensation device by the exhaust fan 11 and the transfer pipe 12 and re-condensed into electrolyte, effectively avoiding environmental pollution and human damage caused by the volatilized electrolyte, and being more environmentally friendly and safer;

[0043] When the electrolyte on the positive electrode plate 8 of the lithium iron phosphate battery is processed, the pull rod 19 can be pulled upward to drive the top ring 17 to move upward, pushing the positive electrode plate 8 of the lithium iron phosphate battery out of the discharge slot 4 and outside the recycling and treatment tank 1, facilitating the staff to take the positive electrode plate 8 of the lithium iron phosphate battery.

[0044] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0045] Although the present utility model has been described above with reference to embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present utility model can be combined with each other in any way. The reason for not exhaustively describing the situations of these combinations in this specification is only to save space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A positive electrode recovery device for a regenerated lithium iron phosphate battery, comprising a recovery and processing box (1), characterized in that: The upper wall of the recycling treatment box (1) is installed with a partition (2), the upper wall of the partition (2) is inserted with a placement cylinder (3), and the upper wall of the partition (2) is provided with a discharge chute (4); A motor (5) is installed on the inner wall of the recycling treatment box (1), the motor (5) is electrically connected to an external power supply, a rotating disk (6) is installed on the output end of the motor (5), a fixing column (7) is installed on the upper wall of the rotating disk (6), and the fixing column (7) is arranged below the discharge chute (4); A positive electrode sheet (8) of a lithium iron phosphate battery is inserted and installed in the placement cylinder (3), and the end of the positive electrode sheet (8) of the lithium iron phosphate battery is wound and connected to the fixing column (7); A vent hole (9) is provided on the side wall of the recycling and processing box (1), an exhaust mechanism (10) is inserted and installed in the vent hole (9), and an output end of the exhaust mechanism (10) is connected to an external condensing device.

2. A regenerated lithium iron phosphate battery positive electrode recovery device according to claim 1, characterized in that: The exhaust mechanism (10) comprises an exhaust fan (11) and a transfer tube (12); the exhaust fan (11) is installed on the side wall of the recovery and processing box (1); the exhaust fan (11) is electrically connected to an external power supply; the input end of the exhaust fan (11) is inserted and installed in the vent hole (9); the output end of the exhaust fan (11) is installed with a transfer tube (12); and the transfer tube (12) is connected to an external condensing device.

3. A regenerated lithium iron phosphate battery positive electrode recovery device according to claim 1, characterized in that: A slot (13) is provided on the side wall of the fixed column (7), a support rod (14) is installed on the upper wall of the rotating disk (6), the support rod (14) is arranged in the slot (13), and the end of the lithium iron phosphate battery positive electrode sheet (8) can be inserted into the slot (13).

4. A regenerated lithium iron phosphate battery positive electrode recovery device according to claim 1, characterized in that: The inner cavity of the recycling treatment box (1) is equipped with a heating plate (15), the heating plate (15) is electrically connected to an external power source, and the upper wall of the heating plate (15) is equipped with a material receiving trough (16), the material receiving trough (16) is arranged below the placement cylinder (3).

5. A regenerated lithium iron phosphate battery positive electrode recovery device according to claim 3, characterized in that: The outer side of the fixed column (7) is sleeved with a top ring (17), and the top ring (17) can slide up and down on the outer side of the fixed column (7). One end of a connecting rod (18) is installed on the side wall of the top ring (17), and the other end of the connecting rod (18) passes through the upper wall of the partition (2) and is installed with a pull rod (19).

6. A regenerated lithium iron phosphate battery positive electrode recovery device according to claim 1, characterized in that: A scraper (20) is installed on the lower wall of the partition (2), and there are two scrapers (20) in total. The two scrapers (20) are respectively arranged on both sides of the discharge chute (4), and the two scrapers (20) can be attached to the side wall of the lithium iron phosphate battery positive electrode sheet (8).

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