A waste lithium battery discharge device

Abstract

The invention discloses a waste lithium battery discharge device, including a discharge box, a protective cover, a servo motor and a discharge assembly, protective covers are fixed on both sides of the discharge box, a servo motor is fixed on the side of one of the protective covers, waterproof bearings are embedded on both sides of the discharge box, a docking frame is sleeved on the top of the discharge box, a negative plate is fixed on the top of the docking frame, a rubber sheet is arranged at the bottom of the negative plate, a positive plate is arranged above the negative plate, a plurality of docking grooves are opened at the bottom of the positive plate and the bottom of the negative plate, and a lithium battery is arranged in the middle of the docking groove. The negative pole and the positive pole in the invention are immersed in a sodium chloride solution, which can increase the contact area between the electrode and the sodium chloride solution, increase the electrolysis efficiency, and make the lithium battery discharge quickly, and the lithium battery does not need to contact the sodium chloride solution, ensuring that impurities are not mixed in the sodium chloride solution, thereby further improving the electrolysis efficiency and increasing the discharge efficiency of the lithium battery.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery recycling, and in particular to a waste lithium battery discharge device. Background Art

[0002] After a certain life span of lithium batteries, they need to be scrapped and recycled. After being collected, lithium batteries need to be discharged to consume the residual power inside the lithium batteries. Lithium batteries use electrolytic sodium chloride solution to consume power, so that lithium batteries can be disassembled and recycled.

[0003] At present, the prior art discloses an application number CN201921996986.7, which is a waste lithium battery discharge device. The waste gas generated during the discharge of waste lithium batteries in brine can be collected and processed to avoid waste gas pollution of the environment. In addition, many lithium batteries can be placed in the hanging basket, which can realize the discharge of a large number of lithium batteries. However, there are still the following problems;

[0004] 1. By directly immersing the lithium battery electrode in the sodium chloride solution, the contact area between the electrode and the sodium chloride solution is too small, resulting in low electrolysis efficiency and low lithium battery discharge efficiency;

[0005] 2. After the lithium battery is taken out of the sodium chloride solution, the subsequent recycling needs to dry the moisture on the surface of the lithium battery, which will increase the workload of lithium battery recycling. When the lithium battery is immersed in the sodium chloride solution, impurities will be brought in, which will reduce the service life of the sodium chloride solution and the electrolysis capacity of the sodium chloride solution;

[0006] 3. Due to the insufficient contact between the electrode and the sodium chloride solution and the stationary state of the sodium chloride solution, the sodium chloride solution cannot be fully electrolyzed, which will not only lead to a decrease in electrolysis efficiency, but also waste the electrolysis capacity of the sodium chloride solution. Summary of the invention

[0007] The purpose of the present invention is to solve the problems of low electrolysis efficiency, low discharge efficiency, short service life of sodium chloride solution and easy pollution of sodium chloride solution in the prior art, thereby providing a waste lithium battery discharge device.

[0008] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a waste lithium battery discharge device, comprising a discharge box, a protective cover, a servo motor and a discharge assembly, protective covers are fixed on both sides of the discharge box, a servo motor is fixed on the side of one of the protective covers, waterproof bearings are embedded on both sides of the discharge box, a docking frame is sleeved on the top of the discharge box, a negative electrode plate is fixed on the top of the docking frame, a rubber sheet is arranged at the bottom of the negative electrode plate, a positive electrode plate is arranged above the negative electrode plate, a plurality of docking grooves are opened at the bottom of the positive electrode plate and the bottom of the negative electrode plate, a lithium battery is arranged in the middle of the docking groove, the bottom of the lithium battery abuts against a conductive block fixed on the negative electrode plate, a connecting sleeve is fixedly installed at the power end of the servo motor, and a rotatable discharge assembly is arranged in the middle of the waterproof bearing; the discharge assembly comprises a rotating column, a conductive plate, an insulating plate, a negative electrode rod and a positive electrode rod, two rotating columns are respectively fixed through the middle of the waterproof bearing, a conductive plate is fixed at one end of the rotating column, an insulating plate is fixed between the conductive plates, and a negative electrode rod and a positive electrode rod are respectively fixed at the top and bottom of the insulating plate.

[0009] Further preferably, fixed bearings are fixed on both sides of the discharge box through support rods, a transmission rod is fixed through the middle of the fixed bearing, and bevel gears are provided on one end of the transmission rod and the two rotating columns.

[0010] Further preferably, a plane plate is fixedly passed through the top of the transmission rod, a plurality of conductive balls are slidably arranged in a groove opened in the top of the plane plate, and the top of the conductive ball is slidably arranged in the groove at the bottom of the metal plate.

[0011] Further preferably, a conductive prism is fixed on the top of the metal plate, the tops of the two conductive prisms are electrically connected to the positive plate and the negative plate respectively through two other wires, and the docking grooves are evenly distributed in a dot matrix at equal intervals at the bottom of the positive plate and the bottom of the negative plate.

[0012] Further preferably, the conductive prism is any one of a triangular prism, a quadrangular prism, a pentagonal prism and a hexagonal prism, a through hole matching the shape of the conductive prism is provided on the top of the protective cover, and the conductive prism passes through the through hole of the protective cover and is movable.

[0013] Further preferably, a connecting pipe is embedded in the side of the discharge box, a sealed threaded cover is provided at one end of the connecting pipe, and the top of the discharge box is tightly attached to the rubber sheet.

[0014] Further preferably, the rotating column, conductive plate, negative pole, positive pole, transmission rod, bevel gear, plane plate, conductive ball, metal plate, conductive prism, negative pole plate and positive pole plate are all made of conductive metal materials, and the discharge box, protective cover, insulating plate, docking frame and connecting sleeve are made of uniformly non-conductive insulating materials.

[0015] Further preferably, the connecting sleeve is fixedly sleeved with one of the transmission columns, the transmission column and the transmission rod are driven by two meshing bevel gears, and the transmission column and the transmission rod are kept vertical.

[0016] Further preferably, the negative electrode rod and the positive electrode rod are made of different materials, one end of the negative electrode rod and the positive electrode rod are respectively connected to two conductive plates, and the shape and thickness of the negative electrode rod and the positive electrode rod are consistent.

[0017] Further preferably, the two ends of the insulating plate are respectively convex downward and upward in a Z shape, the insulating plate separates the negative pole and the positive pole, and the convexity of the insulating plate separates the other end of the negative pole and the positive pole to prevent the two ends of the negative pole and the positive pole from contacting the two conductive plates.

[0018] The beneficial effects of the present invention are:

[0019] 1. The negative electrode and the positive electrode are immersed in the sodium chloride solution, which can increase the contact area between the electrode and the sodium chloride solution, increase the electrolysis efficiency, and make the lithium battery discharge quickly. At the same time, the lithium battery does not need to contact the sodium chloride solution, ensuring that no impurities are mixed into the sodium chloride solution, thereby further improving the electrolysis efficiency and increasing the discharge efficiency of the lithium battery. At the same time, there is no need for subsequent drying work, and the lithium battery recycling is very convenient and efficient;

[0020] 2. The negative pole and the positive pole are separated by an insulating plate. The sodium chloride solutions on the front and back of the negative pole and the positive pole are electrolyzed, which can greatly increase the electrolysis area and greatly improve the electrolysis efficiency. The insulating plate, the negative pole and the positive pole rotate synchronously and quickly to stir the sodium chloride solution, so that the sodium chloride solution is stirred so that it can be fully electrolyzed, which can increase the electrolysis efficiency and increase the service life of the sodium chloride solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the discharge assembly of the present invention;

[0023] Figure 3 It is a disassembly schematic diagram of the discharge assembly of the present invention;

[0024] Figure 4 is a schematic diagram of disassembling the metal plate of the present invention;

[0025] Figure 5 The structure of the metal plate of the present invention is schematically shown in FIG. Figure 1 ;

[0026] Figure 6 The structure of the metal plate of the present invention is schematically shown in FIG. Figure 2 ;

[0027] Figure 7 For the present invention Figure 1 The enlarged schematic diagram of point A in the middle;

[0028] Figure 8 For the present invention Figure 1 A magnified schematic diagram of point B in the middle.

[0029] In the figure: discharge box 1, protective cover 2, servo motor 3, waterproof bearing 4, rotating column 5, conductive plate 6, insulating plate 7, negative pole 8, positive pole 9, fixed bearing 10, transmission rod 11, bevel gear 12, plane plate 13, conductive ball 14, metal plate 15, conductive prism 16, connecting pipe 17, docking frame 18, negative plate 19, rubber sheet 20, docking groove 21, conductive block 22, lithium battery 23, positive plate 24, connecting sleeve 25, wire 26. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Reference Figure 1-8 A waste lithium battery discharge device comprises a discharge box 1, a protective cover 2, a servo motor 3 and a discharge assembly, protective covers 2 are fixed on both sides of the discharge box 1, a servo motor 3 is fixed on the side of one of the protective covers 2, waterproof bearings 4 are embedded on both sides of the discharge box 1, a docking frame 18 is sleeved on the top of the discharge box 1, a negative plate 19 is fixed on the top of the docking frame 18, a rubber sheet 20 is arranged at the bottom of the negative plate 19, a positive plate 24 is arranged above the negative plate 19, a plurality of docking grooves 21 are opened at the bottom of the positive plate 24 and the bottom of the negative plate 19, a lithium battery 23 is arranged in the middle of the docking groove 21, the bottom of the lithium battery 23 abuts against a conductive block 22 fixed on the negative plate 19, a connecting sleeve 25 is fixedly installed on the power end of the servo motor 3, and a rotatable discharge assembly is arranged in the middle of the waterproof bearing 4;

[0032] Preferably, fixed bearings 10 are fixed on both sides of the discharge box 1 through support rods, and a transmission rod 11 is fixed through the middle of the fixed bearing 10. Bevel gears 12 are provided on one end of the transmission rod 11 and the two rotating columns 5. The transmission rod 11 rotates synchronously with the rotating column 5. The engagement of the two bevel gears 12 can ensure that the transmission rod 11 and the rotating column 5 are in stable contact, so that the transmission rod 11 and the rotating column 5 are electrically connected, thereby ensuring that the lithium battery 23 discharges quickly.

[0033] Preferably, a plane plate 13 is fixed through the top of the transmission rod 11, and a plurality of conductive balls 14 are slidably arranged in a groove opened in the top of the plane plate 13. The top of the conductive ball 14 is slidably arranged in a groove at the bottom of the metal plate 15. The conductive ball 14 rolls between the plane plate 13 and the metal plate 15, which can reduce the friction between the plane plate 13 and the metal plate 15, and ensure that the plane plate 13 and the metal plate 15 are always electrically connected.

[0034] Preferably, a conductive prism 16 is fixed to the top of the metal plate 15, and the tops of the two conductive prisms 16 are electrically connected to the positive plate 24 and the negative plate 19 through two other wires 26. The docking grooves 21 are evenly distributed in a dot matrix at equal intervals at the bottom of the positive plate 24 and the bottom of the negative plate 19. The docking grooves 21 are docked with the lithium batteries 23, so that multiple lithium batteries 23 are connected in parallel at the bottom of the positive plate 24 and the bottom of the negative plate 19, and the discharge of the lithium batteries 23 can be realized.

[0035] Preferably, the conductive prism 16 is any one of a triangular prism, a quadrangular prism, a pentagonal prism, and a hexagonal prism. A through hole matching the shape of the conductive prism 16 is provided on the top of the protective cover 2. The conductive prism 16 passes through the through hole of the protective cover 2 and is movable. The shape of the conductive prism 16 is limited by the protective cover 2 and will not rotate, ensuring that the metal plate 15 will not rotate. At the same time, the metal plate 15 and the conductive prism 16 can be moved up and down, ensuring that the metal plate 15 and the conductive ball 14 are always electrically connected.

[0036] Preferably, a connecting tube 17 is embedded in the side of the discharge box 1, and a sealed threaded cover is provided at one end of the connecting tube 17. The top of the discharge box 1 is tightly attached to the rubber sheet 20, and the rubber sheet 20 seals the discharge box 1 and the negative plate 19 to prevent the exhaust gas inside the discharge box 1 from leaking and polluting the air.

[0037] Preferably, the rotating column 5, the conductive plate 6, the negative pole 8, the positive pole 9, the transmission rod 11, the bevel gear 12, the plane plate 13, the conductive ball 14, the metal plate 15, the conductive prism 16, the negative pole plate 19 and the positive pole plate 24 are all made of conductive metal materials, the discharge box 1, the protective cover 2, the insulating plate 7, the docking frame 18 and the connecting sleeve 25 are uniformly made of non-conductive insulating materials, and the insulating plate 7 separates the negative pole 8 and the positive pole 9 well, so that the sodium chloride solution between the negative pole 8 and the positive pole 9 is quickly electrolyzed, thereby ensuring the discharge efficiency of the lithium battery.

[0038] Preferably, the connecting sleeve 25 is fixedly connected to one of the transmission columns 5, the transmission column 5 and the transmission rod 11 are transmitted through two meshing bevel gears 12, the transmission column 5 and the transmission rod 11 remain vertical, the transmission column 5 rotates in the middle of the sealed bearing 4, the sealed bearing 4 is immersed in the sodium chloride solution, and the sealing of the sealed bearing 4 can prevent the leakage of the sodium chloride solution, thereby preventing the leakage of exhaust gas.

[0039] In this embodiment, please refer to Figure 2-3 The discharge assembly includes a rotating column 5, a conductive plate 6, an insulating plate 7, a negative pole 8 and a positive pole 9. Two rotating columns 5 are respectively fixed through the middle of the waterproof bearing 4, a conductive plate 6 is fixed at one end of the rotating column 5, an insulating plate 7 is fixed between the conductive plates 6, and the negative pole 8 and the positive pole 9 are respectively fixed at the top and bottom of the insulating plate 7.

[0040] Preferably, the negative pole 8 and the positive pole 9 are made of different materials, one end of the negative pole 8 and the positive pole 9 are respectively connected to two conductive plates 6, the shape and thickness of the negative pole 8 and the positive pole 9 are consistent, the negative pole 8 and the positive pole 9 are driven by the servo motor 3 to rotate rapidly, the negative pole 8 and the positive pole 9 can stir the sodium chloride solution to fully electrolyze the sodium chloride solution, ensure the utilization rate of the sodium chloride solution, and increase the electrolysis efficiency, thereby increasing the discharge efficiency of the lithium battery 23.

[0041] Preferably, the two ends of the insulating plate 7 are respectively convex downward and upward in a Z shape, and the insulating plate 7 separates the negative pole 8 and the positive pole 9. The convexity of the insulating plate 7 separates the other ends of the negative pole 8 and the positive pole 9 to prevent the two ends of the negative pole 8 and the positive pole 9 from contacting the two conductive plates 6. The negative pole 8 and the positive pole 9 are respectively connected to the negative plate 19 and the positive plate 24, so that the discharge work of multiple lithium batteries 23 can be completed synchronously.

[0042] The connecting pipe 17 can discharge the exhaust gas inside the discharge box 1;

[0043] The conductive block 22 abuts against the negative electrode of the lithium battery 23, so that the negative electrode of the lithium battery 23 is connected in parallel to the negative electrode plate 19, thereby completing the discharge work of the multiple lithium batteries 23 synchronously.

[0044] In the present invention, when in use, first, the positive plate 24 and the negative plate 19 are lifted, so that the docking frame 18 and the discharge box 1 at the bottom of the negative plate 19 are disassembled, and then the sodium chloride solution is poured into the discharge box 1, and the sodium chloride solution immerses the negative pole 8 and the positive pole 9, and then the docking frame 18 is sleeved on the top of the discharge box 1, and then the lithium batteries 23 are inserted into the docking grooves 21 at the top of the negative plate 19 one by one, and then the positive plate 24 is covered on the lithium battery 23, and the positive electrode of the lithium battery 23 is tightly attached to the positive plate 24, and the negative electrode of the lithium battery 23 is tightly attached to the conductive block 22 of the negative plate 19, and then the servo motor 3 is turned on. The power supply, the servo motor 3 drives the connecting sleeve 25 and the transmission column 5 to rotate rapidly, and the transmission rod 11 rotates rapidly through the two bevel gears 23, so that the transmission rod 11 and the flat plate 13 rotate rapidly, and the conductive ball 14 rolls between the flat plate 13 and the metal plate 15. The positive and negative electrodes of the lithium battery 23 are respectively connected to the negative pole 8 and the positive pole 9. The sodium chloride solution is electrolyzed on the side of the negative pole 8 and the positive pole 9 to consume the power of the lithium battery 23. The waste gas generated by the electrolysis is stored in the discharge box 1 and can be discharged through the connecting pipe 17. After the discharge is completed, the positive plate 24 is removed, and then the lithium battery 23 is removed.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste lithium battery discharge device, comprising a discharge box (1), a protective cover (2), a servo motor (3) and a discharge assembly, characterized in that: Protective covers (2) are fixed on both sides of the discharge box (1), a servo motor (3) is fixed on the side of one of the protective covers (2), waterproof bearings (4) are embedded on both sides of the discharge box (1), a docking frame (18) is sleeved on the top of the discharge box (1), a negative electrode plate (19) is fixed on the top of the docking frame (18), a rubber sheet (20) is arranged at the bottom of the negative electrode plate (19), a positive electrode plate (24) is arranged above the negative electrode plate (19), a plurality of docking grooves (21) are opened at the bottom of the positive electrode plate (24) and the bottom of the negative electrode plate (19), a lithium battery (23) is arranged in the middle of the docking groove (21), the bottom of the lithium battery (23) abuts against a conductive block (22) fixed on the negative electrode plate (19), a connecting sleeve (25) is fixedly installed on the power end of the servo motor (3), and a rotatable discharge assembly is arranged in the middle of the waterproof bearing (4); The discharge assembly comprises a rotating column (5), a conductive plate (6), an insulating plate (7), a negative pole (8) and a positive pole (9); two rotating columns (5) are respectively passed through and fixed in the middle of the waterproof bearing (4); a conductive plate (6) is fixed at one end of the rotating column (5); an insulating plate (7) is fixed between the conductive plates (6); and the negative pole (8) and the positive pole (9) are respectively fixed at the top and bottom of the insulating plate (7); Fixed bearings (10) are fixed to both sides of the discharge box (1) via support rods, a transmission rod (11) is fixed through the middle of the fixed bearing (10), and a bevel gear (12) is provided on one end of the transmission rod (11) and on the two rotating columns (5); A plane plate (13) is fixedly passed through the top of the transmission rod (11), a plurality of conductive balls (14) are slidably arranged in a groove opened in the top of the plane plate (13), and the top of the conductive ball (14) is slidably arranged in a groove at the bottom of the metal plate (15); A conductive prism (16) is fixed on the top of the metal plate (15); the tops of the two conductive prisms (16) are electrically connected to the positive plate (24) and the negative plate (19) respectively through two other wires (26); the docking grooves (21) are evenly distributed in a dot matrix at equal intervals on the bottom of the positive plate (24) and the bottom of the negative plate (19); the docking grooves (21) and the lithium batteries (23) are docked, so that a plurality of lithium batteries (23) are connected in parallel at the bottom of the positive plate (24) and the bottom of the negative plate (19); A connecting tube (17) is embedded in the side of the discharge box (1), one end of the connecting tube (17) is provided with a sealed threaded cover, and the docking grooves (21) are evenly distributed in a dot matrix at equal intervals on the bottom of the positive plate (24) and the bottom of the negative plate (19).

2. The waste lithium battery discharge device according to claim 1, characterized in that: The conductive prism (16) is any one of a triangular prism, a quadrangular prism, a pentagonal prism and a hexagonal prism. A through hole matching the shape of the conductive prism (16) is provided on the top of the protective cover (2). The conductive prism (16) passes through the through hole of the protective cover (2) and is movable.

3. The waste lithium battery discharge device according to claim 1, characterized in that: The rotating column (5), the conductive plate (6), the negative pole (8), the positive pole (9), the transmission rod (11), the bevel gear (12), the plane plate (13), the conductive ball (14), the metal plate (15), the conductive prism (16), the negative pole plate (19) and the positive pole plate (24) are all made of conductive metal materials, and the discharge box (1), the protective cover (2), the insulating plate (7), the docking frame (18) and the connecting sleeve (25) are all made of non-conductive insulating materials.

4. The waste lithium battery discharge device according to claim 1, characterized in that: The connecting sleeve (25) is fixedly sleeved with one of the rotating columns (5), and the rotating column (5) and the transmission rod (11) are driven via two meshing bevel gears (12).

5. The waste lithium battery discharge device according to claim 1, characterized in that: One end of the negative pole rod (8) and the positive pole rod (9) are respectively connected to two conductive plates (6), and the shape and thickness of the negative pole rod (8) and the positive pole rod (9) are consistent.

6. The waste lithium battery discharge device according to claim 5, characterized in that: The two ends of the insulating plate (7) are respectively protruded upward and downward in a Z shape, and the protrusions of the insulating plate (7) separate the other ends of the negative pole (8) and the positive pole (9), thereby preventing the two ends of the negative pole (8) and the positive pole (9) from contacting the two conductive plates (6).

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