An on-site explosion-proof dismantling device for battery cells

Abstract

The utility model discloses an on-site explosion-proof disassembly equipment for battery cells, including an explosion-proof box, an explosion-proof safety door, an electric energy recovery component, a fixed platform, a clamp, a first drill bit component and a negative pressure adsorption component, wherein the first drill bit component is used to puncture the battery cell to release gas; a second drill bit component and an electrolyte collection component are provided below the fixed platform, wherein the second drill bit component is used to puncture the battery cell and use the electrolyte collection component to collect the electrolyte flowing down; a dissecting saw component is also provided above the fixed platform, wherein the dissecting saw component is used to cut the battery cell. The on-site explosion-proof disassembly equipment for battery cells can disassemble retired battery cells with extremely high risk levels on-site at the energy storage site, thereby avoiding fire or safety accidents during the placement and transportation of such battery cells, and ensuring higher safety and lower costs.

Description

Technical Field

[0001] The utility model relates to the technical field of battery disassembly, in particular to on-site explosion-proof disassembly equipment for battery cells. Background Art

[0002] Although used lithium batteries are retired due to various problems, they still have high recycling value. In battery recycling, the battery cells need to be disassembled. The existing disassembly methods are mostly disassembly by crushing equipment, which is not very safe, and the various substances generated during the disassembly of the battery cells cannot be collected and classified.

[0003] Retired battery cells are also divided into safety levels. Some battery cells have high safety risks. Not only are they prone to combustion or explosion during the disassembly process, but they are also not suitable for frequent placement and transportation, and are prone to fire or safety accidents. Therefore, such battery cells need to be safely disassembled on-site to reduce risks. Summary of the invention

[0004] The utility model aims to provide an on-site explosion-proof disassembly device for a battery core in view of the problems existing in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A device for on-site explosion-proof disassembly of battery cells, comprising an explosion-proof box, wherein the explosion-proof box is provided with an openable and closable explosion-proof safety door, wherein a disassembly area and an electric energy recovery area are separated by a partition, wherein the electric energy recovery area is provided with an electric energy recovery component, wherein the electric energy recovery component is used to collect residual electric energy of the battery cells to be disassembled; wherein the disassembly area is provided with a fixed platform, wherein an adjustable clamp is provided on the fixed platform, wherein the clamp is used to clamp the battery cells to be disassembled; wherein a first drill bit assembly is provided above the fixed platform, wherein the first drill bit assembly is used to puncture the battery cells to release gas, wherein a negative pressure adsorption assembly is provided on one side of the fixed platform, wherein the gas released by the battery cells is adsorbed; wherein a clearance hole is provided on the fixed platform, wherein a second drill bit assembly and an electrolyte collection assembly are provided below the fixed platform, wherein the second drill bit assembly is used to puncture the battery cells and utilize the electrolyte collection assembly to collect the electrolyte flowing down; wherein a dissecting saw assembly is also provided above the fixed platform, wherein the dissecting saw assembly is used to cut the battery cells.

[0007] The on-site explosion-proof disassembly equipment for battery cells can disassemble retired battery cells with extremely high risk levels on-site at the energy storage site to avoid fire or safety accidents during the placement and transportation of such battery cells, thereby ensuring higher safety and lower costs.

[0008] The setting of the explosion-proof box can greatly improve the safety of personnel, and even if an explosion occurs, it will not hurt the on-site staff. The power recovery component can collect the residual power in such battery cells, which can reduce the risk of battery cell explosion on the one hand and reduce energy waste on the other hand.

[0009] The partition is used to separate the power recovery component from the battery cell disassembly area, which is also for improving safety and preventing the explosion generated by the battery cell disassembly from spreading to the power recovery component and causing a secondary explosion.

[0010] Furthermore, the explosion-proof box is a metal box body, the explosion-proof safety door is provided with a visible explosion-proof glass window, the partition is a metal plate, and the provision of the visible explosion-proof glass window facilitates the staff to observe the internal disassembly situation from the outside.

[0011] Furthermore, a plurality of sets of universal wheels are provided below the explosion-proof box to facilitate the movement of the explosion-proof box.

[0012] Furthermore, at least one side of the fixed platform is fixedly connected to the inner wall of the explosion-proof box, and the clamp includes at least a pair of clamping plates, which clamp the battery core electrically, pneumatically or manually.

[0013] Furthermore, the electric energy recovery component includes a battery pack arranged in the electric energy recovery area, and a converter connected to the battery pack, and the converter is connected to the electrodes of the battery cell to be disassembled through a cable.

[0014] Furthermore, the first drill bit assembly includes a first three-axis motion module connected to the inner wall of the explosion-proof box, the working end of the first three-axis motion module is connected to a first drill bit drive seat, and the first drill bit drive seat is connected to a first drill bit.

[0015] Furthermore, the negative pressure adsorption assembly includes a negative pressure collection tank installed on the inner wall of the explosion-proof box, the negative pressure collection tank is connected to an adsorption pipeline, and a bell mouth is provided at the end of the adsorption pipeline.

[0016] Furthermore, the second drill bit assembly includes a second three-axis motion module connected to the inner wall of the explosion-proof box, the working end of the second three-axis motion module is connected to a second drill bit drive seat, the second drill bit drive seat is connected to a second drill bit, and the second drill bit passes through the clearance hole to puncture the battery cell.

[0017] Furthermore, the electrolyte collection assembly includes an electrolyte storage tank disposed in the explosion-proof box, and a collection tank connected to the electrolyte storage tank through a pipeline, and the collection tank is located below the fixed platform.

[0018] Furthermore, the dissecting saw assembly includes a third three-axis movable module suspended and installed in the explosion-proof box, and the working end of the third three-axis movable module is connected and installed with an electric cutting saw.

[0019] Compared with the prior art, the utility model has the following beneficial effects: 1. The on-site explosion-proof disassembly equipment for battery cells can disassemble retired battery cells with extremely high risk levels on-site at the energy storage site, so as to avoid fire or safety accidents during the placement and transportation of such battery cells, and ensure higher safety and lower cost; 2. In order to cope with the safety risk of explosion during the disassembly process, the disassembly process of such battery cells is set in a fully enclosed explosion-proof box, which can greatly improve the safety of personnel, and even if an explosion occurs, it will not hurt the staff on site; 3. The electric energy recovery component can collect the residual electric energy in such battery cells, which reduces the risk of battery cell explosion on the one hand and reduces energy waste on the other hand; 4. The electric energy recovery component is separated from the battery cell disassembly area by the partition, which is also to improve safety and avoid the explosion generated by the battery cell disassembly from affecting the electric energy recovery component and causing secondary explosion; 5. During the disassembly of the battery cell, the generated hydrogen and harmful gases can be collected, the generated electrolyte can also be collected, and the pole pack in the battery cell can also be collected, which can reduce pollution and is conducive to the recycling of waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an on-site explosion-proof disassembly device for battery cells according to the utility model;

[0021] In the figure: 1. explosion-proof box; 101. disassembly area; 102. power recovery area; 2. partition; 3. battery pack; 4. converter; 5. fixed platform; 6. fixture; 7. battery cell; 8. first drill bit assembly; 9. first drill bit; 10. negative pressure collection tank; 11. adsorption pipeline; 12. bell mouth; 13. second drill bit assembly; 14. second drill bit; 15. electrolyte storage tank; 16. pipeline; 17. collection tank; 18. dissection saw assembly; 19. electric cutting saw; 20. universal wheel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] like Figure 1 As shown, an on-site explosion-proof disassembly device for a battery cell comprises an explosion-proof box 1, wherein the explosion-proof box 1 is provided with an explosion-proof safety door that can be opened and closed, wherein the explosion-proof box 1 is separated into a disassembly area 101 and an energy recovery area 102 by a partition plate 2, wherein the energy recovery area 102 is provided with an energy recovery component, wherein the energy recovery component is used to collect residual energy of the battery cell 7 to be disassembled; wherein the disassembly area 101 is provided with a fixed platform 5, wherein the fixed platform 5 is provided with an adjustable clamp 6, wherein the clamp 6 is used to clamp the battery cell 7 to be disassembled; ... fixed platform 5 is provided with an adjustable clamp 6, wherein the fixed platform 5 is provided with an adjustable clamp 6, wherein the fixed platform 5 is provided with an adjustable clamp 6, wherein the fixed platform 5 is provided with an adjustable clamp 6, wherein the fixed platform 5 is A first drill bit assembly 8 is provided on the side, and the first drill bit assembly 8 is used to puncture the battery cell to release gas. A negative pressure adsorption assembly is provided on one side of the fixed platform 5, and is used to adsorb the gas released by the battery cell; a yield hole is provided on the fixed platform 5, and a second drill bit assembly 13 and an electrolyte collecting assembly are provided below the fixed platform 5, and the second drill bit assembly 13 is used to puncture the battery cell and use the electrolyte collecting assembly to collect the electrolyte flowing down; a dissecting saw assembly 18 is also provided above the fixed platform 5, and the dissecting saw assembly 18 is used to cut the battery cell.

[0025] The on-site explosion-proof disassembly equipment for battery cells can disassemble retired battery cells with extremely high risk levels on-site at the energy storage site to avoid fire or safety accidents during the placement and transportation of such battery cells, thereby ensuring higher safety and lower costs.

[0026] Since such retired batteries are extremely dangerous, in order to cope with the safety risk of explosion during the disassembly process, the disassembly process of such batteries is set in a fully enclosed explosion-proof box 1, which can greatly improve the safety of personnel and will not injure on-site staff even if an explosion occurs.

[0027] In order to reduce the explosion risk of such battery cells, the electric energy recovery component is also arranged in the explosion-proof box 1. The electric energy recovery component can collect the residual electric energy in such battery cells, which on the one hand reduces the risk of battery cell explosion, and on the other hand can reduce energy waste. Such retired battery cells usually have 20% to 30% of power remaining. The collection of these electric energies accumulates over time, and the accumulated energy is also considerable.

[0028] The partition 2 is used to separate the power recovery component from the battery cell disassembly area, which is also for improving safety and preventing the explosion generated by the battery cell disassembly from spreading to the power recovery component and causing a secondary explosion.

[0029] The fixed platform 5 plays a supporting role and can be used to install the clamp 6, which can clamp the battery cell 7 to keep its posture stable. When disassembling, the battery cell 7 is first placed on the fixed platform 5, the clamp 6 is used to clamp the battery cell, the power recovery component is used to collect the residual power in the battery cell, the explosion-proof safety door is closed, and the disassembly work begins;

[0030] The first drill assembly 8 can pierce the battery cell from the top to release the hydrogen and harmful gases inside the battery cell, and the released gases will be immediately collected by the negative pressure adsorption assembly near it; the second drill assembly 13 can pierce the battery cell from the bottom to let the electrolyte inside the battery cell flow out, and the electrolyte collection assembly can collect the electrolyte in a timely and comprehensive manner. Finally, the shell of the battery cell is broken open with the dissecting saw assembly to take out the pole package inside the battery cell, and the pole package will be placed in a special collection box.

[0031] Furthermore, the explosion-proof box 1 is a metal box, the explosion-proof safety door is provided with a visible explosion-proof glass window, and the partition is a metal plate. The explosion-proof box made of metal can withstand the impact of the explosion, and the setting of the visible explosion-proof glass window is convenient for the staff to observe the internal disassembly situation from the outside.

[0032] Furthermore, a plurality of sets of universal wheels 20 with brakes are provided below the explosion-proof box 1 to facilitate the movement of the explosion-proof box 1. For dangerous batteries, which have high potential safety hazards, they are usually not disassembled in a workshop, but moved to an open area outdoors.

[0033] Furthermore, at least one side of the fixing platform 5 is fixedly connected to the inner wall of the explosion-proof box 1, and the clamp 6 includes at least a pair of clamps, which clamp the battery cell electrically, pneumatically or manually. The clamp 6 can directly select mature products available on the market, which can clamp the column battery cell and keep it immobile.

[0034] Furthermore, the electric energy recovery component includes a battery pack 3 arranged in the electric energy recovery area 102, and a converter 4 connected to the battery pack 3, and the converter 4 is connected to the electrodes of the battery cell to be disassembled through a cable.

[0035] The battery pack 3 is a normally used battery pack that can store energy; the converter 4 can be a DC / DC converter so as to transfer the electrical energy in different retired battery cells to the battery pack 3, and the cable passes through the wiring hole on the partition 2 to be connected to the positive and negative poles of the battery cell.

[0036] Furthermore, the first drill assembly 8 includes a first three-axis motion module connected to the inner wall of the explosion-proof box, the working end of the first three-axis motion module is connected to a first drill drive seat, and the first drill drive seat is connected to a first drill 9.

[0037] The second drill assembly 13 includes a second three-axis motion module connected to the inner wall of the explosion-proof box 1, the working end of the second three-axis motion module is connected to a second drill drive seat, the second drill drive seat is connected to a second drill 14, and the second drill 14 passes through the clearance hole to puncture the battery cell.

[0038] The structure and function of the first three-axis motion module and the second motion module are basically similar, except that the installation position and the drill bits they control are different. They can directly use the commercially available XYZ three-axis mobile module or a three-axis motion robot arm, the purpose of which is to move the first drill bit or the second drill bit in the horizontal and vertical directions. Since the existing mobile module is used, the specific structure diagram is not given in the drawings of the specification. The first drill bit 9 and the second drill bit 14 can both be electric drill bits, driven by a motor to rotate and drill holes.

[0039] For example, the commercially available XYZ three-axis mobile module is a three-axis slide module combination, which has a cantilever and gantry type combination method, the working range is the XYZ plane, the Z-axis slide is fixed to the X-axis slide, the Z-axis body moves up and down, and the Z-axis can be used to connect the first drill bit or the second drill bit or the electric cutting saw.

[0040] Furthermore, the negative pressure adsorption component includes a negative pressure collection tank 10 installed on the inner wall of the explosion-proof box 1, and the negative pressure collection tank 10 is connected to an adsorption pipeline 11. The end of the adsorption pipeline 11 is provided with a bell mouth 12, and the bell mouth 12 faces the top of the battery cell, so that the gas released by the battery cell can be adsorbed in a close and timely manner.

[0041] Furthermore, the electrolyte collection assembly includes an electrolyte storage tank 15 disposed in the explosion-proof box 1, and a collection tank 17 connected to the electrolyte storage tank 15 through a pipe 16, and the collection tank 17 is located below the fixed platform 5, and can collect the electrolyte flowing down from the clearance hole. The size and placement position of the electrolyte storage tank, the pipe and the collection tank can be adjusted according to actual conditions, and the clearance hole can also be multiple, or some guide grooves can be provided on the fixed platform to guide the electrolyte to flow into the collection tank.

[0042] Furthermore, the dissecting saw assembly 18 includes a third three-axis mobile module suspended and installed in the explosion-proof box 1, and the working end of the third three-axis mobile module is connected and installed with an electric cutting saw 19. The third three-axis mobile module can also be a commercially available XYZ three-axis mobile module or a three-axis motion robot arm, which can control the electric cutting saw to cut the outer shell of the battery cell.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An on-site explosion-proof disassembly equipment for battery cells, characterized in that: It comprises an explosion-proof box, which is provided with an explosion-proof safety door that can be opened and closed. The explosion-proof box is divided into a disassembly area and an energy recovery area by a partition. The energy recovery area is provided with an energy recovery component, and the energy recovery component is used to collect residual electric energy of the battery cell to be disassembled; the disassembly area is provided with a fixed platform, and the fixed platform is provided with an adjustable clamp, and the clamp is used to clamp the battery cell to be disassembled; a first drill bit assembly is provided above the fixed platform, and the first drill bit assembly is used to puncture the battery cell to release gas, and a negative pressure adsorption assembly is provided on one side of the fixed platform, which is used to adsorb the gas released by the battery cell; a yield hole is provided on the fixed platform, and a second drill bit assembly and an electrolyte collection assembly are provided below the fixed platform, and the second drill bit assembly is used to puncture the battery cell and use the electrolyte collection assembly to collect the electrolyte flowing down; a dissection saw assembly is also provided above the fixed platform, and the dissection saw assembly is used to cut the battery cell.

2. The on-site explosion-proof disassembly equipment for battery cells according to claim 1 is characterized in that: The explosion-proof box is a metal box body, the explosion-proof safety door is provided with a visible explosion-proof glass window, and the partition is a metal plate.

3. The on-site explosion-proof disassembly equipment for battery cells according to claim 1, characterized in that: A plurality of sets of universal wheels are also arranged below the explosion-proof box.

4. The on-site explosion-proof disassembly equipment for battery cells according to claim 1, characterized in that: At least one side of the fixed platform is fixedly connected to the inner wall of the explosion-proof box, and the clamp includes at least a pair of clamping plates, which clamp the battery core by electric, pneumatic or manual means.

5. The on-site explosion-proof disassembly equipment for battery cells according to claim 1, characterized in that: The electric energy recovery component includes a battery pack arranged in the electric energy recovery area, and a converter connected to the battery pack, and the converter is connected to the electrodes of the battery cell to be disassembled through a cable.

6. The on-site explosion-proof disassembly equipment for battery cells according to claim 1, characterized in that: The first drill assembly includes a first three-axis motion module connected to the inner wall of the explosion-proof box, a first drill drive seat is connected to the working end of the first three-axis motion module, and a first drill bit is connected to the first drill drive seat.

7. The on-site explosion-proof disassembly equipment for battery cells according to claim 1, characterized in that: The negative pressure adsorption assembly comprises a negative pressure collection tank installed on the inner wall of the explosion-proof box, the negative pressure collection tank is connected to an adsorption pipeline, and a bell mouth is provided at the end of the adsorption pipeline.

8. The on-site explosion-proof disassembly equipment for battery cells according to claim 1, characterized in that: The second drill assembly includes a second three-axis motion module connected to the inner wall of the explosion-proof box, the working end of the second three-axis motion module is connected to a second drill drive seat, the second drill drive seat is connected to a second drill, and the second drill passes through the clearance hole to puncture the battery core.

9. The on-site explosion-proof disassembly equipment for battery cells according to claim 1, characterized in that: The electrolyte collection assembly includes an electrolyte storage tank disposed in the explosion-proof box, and a collection tank connected to the electrolyte storage tank through a pipeline, and the collection tank is located below the fixed platform.

10. The on-site explosion-proof disassembly equipment for battery cells according to claim 1, characterized in that: The dissecting saw assembly comprises a third three-axis movable module suspended and installed in the explosion-proof box, and an electric cutting saw is connected and installed at the working end of the third three-axis movable module.

Images