Disassembling device and battery disassembling method

Abstract

The embodiment of the invention provides a disassembling device and a battery disassembling method, the disassembling device is used for disassembling a battery, the battery comprises a shell and an electrode assembly accommodated in the shell, and the disassembling device comprises a cutting mechanism, which is used for cutting the shell to form a broken part on the shell wall of the shell; the positioning and disassembling assembly is configured to move between an abutting position and a disassembling position, at the abutting position, the positioning and disassembling assembly abuts against the shell wall, and at least part of the positioning and disassembling assembly moves from the abutting position to the direction away from the electrode assembly to reach the disassembling position; the control device is configured to control the cutting mechanism to perform cutting, the formed cut-off part at least partially surrounds the part, allowing the positioning and disassembling assembly to abut against, in the shell wall, and the control device controls the positioning and disassembling assembly to move from the abutting position to the disassembling position while driving the part, abutting against the positioning and disassembling assembly, of the shell wall to be away from the electrode assembly; therefore, the recovery efficiency of the waste batteries can be improved, manual participation is reduced, and the fire risk in the disassembling process is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of battery disassembly, and in particular to a disassembly device and a battery disassembly method. Background Art

[0002] New energy batteries are increasingly used in life and industry. For example, new energy vehicles equipped with batteries have been widely used. In addition, batteries are increasingly used in the field of energy storage. In new energy vehicles equipped with batteries, batteries can be used to provide power in whole or in part. In the field of energy storage, batteries can be installed in energy storage boxes or directly on the user side.

[0003] As batteries are used more and more widely in life and industry, a large number of waste batteries will be generated. The positive and negative electrode materials of waste batteries are high-energy-consuming materials and have high recycling value. However, crushing the batteries as a whole will result in insufficient purity of the recycled products, which will greatly reduce the economic benefits. Manual cutting of batteries is time-consuming, costly, and dangerous, and it is difficult to cope with the large amount of recycling demand in the future. Therefore, how to improve the recycling efficiency of waste batteries and reduce the risk of harm to operators during the recycling process is one of the research topics in the industry. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a disassembly device and a battery disassembly method that can improve the recycling efficiency of waste batteries and reduce the risk of injury to operators during the recycling process. The present application is implemented through the following technical solutions.

[0005] A first aspect of the present application provides a disassembly device for disassembling a battery, the battery comprising a shell and an electrode assembly contained in the shell, the disassembly device comprising: a cutting mechanism configured to cut the shell and form a disconnection portion on a shell wall of the shell; a positioning and disassembly assembly configured to move between an abutment position and a disassembly position, wherein the positioning and disassembly assembly abuts against the shell wall at the abutment position, and the positioning and disassembly assembly at least partially moves from the abutment position in a direction away from the electrode assembly to reach the disassembly position; and a control device configured to control the cutting mechanism to perform cutting, wherein the disconnection portion formed at least partially surrounds a portion of the shell wall for the positioning and disassembly assembly to abut against, and the control device controls the positioning and disassembly assembly to move from the abutment position to the disassembly position while driving a portion of the abutted shell wall away from the electrode assembly.

[0006] This can reduce the difficulty of separating the electrode assembly from the casing, improve the recycling efficiency of battery disassembly, and thus improve the recycling efficiency of used batteries. Moreover, since there is no need for manual cutting and manual pulling out of the electrode assembly, the risk of injury to the operator during the recycling process can be reduced.

[0007] In some embodiments, the control device controls the cutting mechanism to cut the shell wall, and a break portion is formed on the shell wall. The area partially surrounded by the break portion in the shell wall constitutes an outward-turned portion, and the outward-turned portion is connected to the shell wall outside the outward-turned portion through a connecting portion; in the abutment position, the positioning and disassembly assembly abuts against the outward-turned portion; the control device is configured to control the positioning and disassembly assembly to rotate from the abutment position to the disassembly position, while driving the outward-turned portion to rotate around the connecting portion to become an outward-turned state.

[0008] Thus, the control device can control the cutting mechanism to cut first, and then control the positioning and disassembly assembly to abut against the outward-turned portion, or the control device can first control the positioning and disassembly assembly to abut against the outward-turned portion, and then control the cutting mechanism to cut, thereby improving the flexibility of the battery disassembly process, and because the positioning and disassembly assembly can drive the outward-turned portion to rotate around the connecting portion to become an outward-turned state, the outer shell can be separated from the electrode assembly, thereby making it easier to remove the electrode assembly.

[0009] In some embodiments, the control device controls the positioning and disassembly assembly to move to the abutment position, and controls the cutting mechanism to perform cutting while keeping the positioning and disassembly assembly in the abutment position, thereby forming an outward-turned portion through the disconnection portion. The control device controls the positioning and disassembly assembly to rotate from the abutment position to the disassembly position, while driving the outward-turned portion to rotate around the connecting portion to become an outward-turned state.

[0010] Thus, the control device can control the positioning and disassembly assembly to abut against the outward-turned portion, and then control the cutting mechanism to cut, thereby reducing the probability of battery movement during the cutting process and reducing the difficulty of cutting.

[0011] In some embodiments, the positioning and disassembly assembly includes a first positioning and disassembly assembly, which is used to disassemble a first shell wall in the shell wall, and the first shell wall intersects with the first direction; the disassembly device includes a first driving mechanism, which is connected to the first positioning and disassembly assembly and is configured to drive the first positioning and disassembly assembly to move between an abutment position and a disassembly position; the control device controls the first driving mechanism to drive the first positioning and disassembly assembly to reach the abutment position or move from the abutment position to the disassembly position.

[0012] Since the control device controls the first driving mechanism to drive the first positioning and disassembling assembly to reach the abutting position or move from the abutting position to the disassembling position, the first positioning and disassembling assembly can be used to position the battery and make part of the outward-turned portion in an outward-turned state.

[0013] In some embodiments, the first positioning and disassembly assembly includes: a first positioning member having a first positioning surface, the first positioning surface is used to abut against the first shell wall; a first suction cup assembly, including at least one first suction cup, the first suction cup is configured to be able to be adsorbed on the outward-turned portion in the first shell wall or to be detached from the outward-turned portion.

[0014] Since the first positioning surface is used to abut the shell wall, the first positioning and disassembly assembly can position the battery; since the first suction cup is configured to be adsorbed on or detached from the shell wall, the first suction cup can make at least part of the everted portion become everted.

[0015] In some embodiments, the first positioning member is formed as a block-shaped member, and the first positioning member is formed with a hole portion. The first suction cup is received in the hole portion and is arranged so that the adsorption surface and the first positioning surface face the same side. When the first positioning surface abuts against the first shell wall, the first suction cup can be adsorbed on the outward-turned portion of the first shell wall.

[0016] Since the first suction cup is received in the hole, the space occupied by the first positioning and disassembling assembly can be saved. In addition, when the first positioning surface is in contact with the first shell wall, the first suction cup can be attached to the outwardly turned portion of the first shell wall, saving the time for separating the first shell wall from the electrode assembly, which is beneficial to improving the recycling efficiency of waste batteries.

[0017] In some embodiments, the disassembly device also includes a base plate, the first drive mechanism includes a first drive cylinder, the first drive cylinder is rotatably hinged to the base plate, the output end of the first drive cylinder is rotatably hinged to the first positioning and disassembly assembly, the first positioning and disassembly assembly is rotatably connected relative to the base plate, and the first drive cylinder drives the output end to drive the first positioning and disassembly assembly to rotate relative to the base plate, thereby rotating between the abutment position and the disassembly position.

[0018] Thus, the first positioning and disassembling assembly can be rotated between the abutting position and the disassembling position through the rotating action, so that the first housing wall can be turned outward.

[0019] In some embodiments, the disassembly device further comprises a limit block mounted on the bottom plate, the limit block having a limit surface, and the limit surface is used to limit the maximum angle of rotation of the first positioning and disassembly assembly in a direction away from the electrode assembly.

[0020] Thereby, the movement range of the first positioning and disassembling component between the abutting position and the disassembling position can be limited, and the maximum rotation angle can be restricted.

[0021] In some embodiments, the limiting surface is formed to be inclined in a direction that the closer it is to the electrode assembly, the closer it is to the bottom plate along the first direction. The limiting block is installed on the bottom plate and the installation position on the bottom plate is adjustable along the first direction.

[0022] The first positioning and disassembling component can abut against different positions on the inclined limiting surface to achieve different maximum angles, and can be adapted to batteries of different specifications.

[0023] In some embodiments, there is an even number of first positioning and disassembly components, and the even number of first positioning and disassembly components are relatively arranged on two sides opposite to each other along the first direction of the battery placement position. A first driving mechanism, a base plate, and a limit block are arranged corresponding to each first positioning and disassembly component, and the control device controls each first positioning and disassembly component to move between the abutment position and the disassembly position.

[0024] Thereby, the first shell walls opposite to each other in the first direction can be respectively rotated along the connecting portion to become an outward-turned state, which is more conducive to the removal of the electrode assembly.

[0025] In some embodiments, the shell wall includes a second shell wall intersecting in the second direction and close to the bottom plate, the positioning and disassembly assembly includes a second positioning member for supporting the battery to be disassembled; the disassembly device includes a second driving mechanism, the second driving mechanism is connected to the second positioning member and is configured to drive the second positioning member to move along the first direction between a position abutting the second shell wall and a position away from the second shell wall, and the second direction is perpendicular to the first direction.

[0026] As a result, the battery cell can be positioned along the second direction.

[0027] In some embodiments, the first positioning and disassembly assembly, the first driving mechanism and the second positioning member are installed on the same side of the base plate, the first positioning and disassembly assembly is located above the second positioning member and is connected to the second positioning member through a pivot, the first positioning and disassembly assembly is rotatably connected to the pivot, along the second direction, the limit block is arranged between the first positioning and disassembly assembly and the base plate through a first bracket connected to the base plate, along the first direction, the second positioning surface of the second positioning member and the first positioning surface of the first positioning member are located on the side close to the battery relative to the limit block.

[0028] Since the first positioning and disassembling assembly is located above the second positioning member and connected to the second positioning member via a pivot, the first positioning and disassembling assembly is rotatably connected to the pivot. Therefore, space can be reserved below the first positioning and disassembling assembly to allow the first positioning and disassembling assembly to rotate and set a limit block. And since the limit block is set between the first positioning and disassembling assembly and the second driving mechanism via a first bracket connected to the bottom plate, it is more conducive to reducing the space occupied by the first positioning and disassembling assembly and the second driving mechanism, and improving the miniaturization of the disassembling device.

[0029] In some embodiments, the disassembly device includes a base plate, a disassembly platform, a disassembly tray connected to the disassembly platform, and a tray driving mechanism. The base plate is located on the disassembly tray, and the cutting mechanism is arranged on the disassembly platform. The control device controls the tray driving mechanism to drive the disassembly tray to drive the base plate to move along the first direction, thereby driving the battery to reach the cutting position or the disassembly position.

[0030] Thus, the disassembly tray can drive the battery to move to a cutting position or a disassembly position, which is helpful to reduce interference in cutting and disassembling the battery shell.

[0031] In some embodiments, the shell wall includes a third shell wall intersecting in a third direction; the positioning and disassembly assembly includes a third positioning member, and the third positioning member is used to abut the third shell wall; the disassembly device includes a third driving mechanism, the third driving mechanism is connected to the third positioning member and is configured to drive the third positioning member to move between a position abutting the third shell wall and a position away from the abutting the third shell wall, and the first direction, the second direction and the third direction are perpendicular to each other.

[0032] In this way, the battery can be positioned along the third direction, and the interference between the third positioning member and the cutting mechanism when the cutting mechanism cuts the shell wall can be reduced, thereby facilitating the cutting of the shell wall by the cutting mechanism.

[0033] In some embodiments, the disassembly device has a disassembly platform, a disassembly tray connected to the disassembly platform, and a tray driving mechanism. The third positioning member and the third driving mechanism are both located on the disassembly tray. The cutting mechanism is disposed on the disassembly platform. The control device controls the tray driving mechanism to drive the disassembly tray to drive the third positioning member and the third driving mechanism to move along the first direction, thereby driving the battery to reach a cutting position or a disassembly position.

[0034] Thus, the third positioning member can drive the battery to move to a cutting position or a disassembly position, which is helpful to reduce interference in cutting and disassembling the battery shell.

[0035] In some embodiments, the positioning and disassembly assembly includes a second positioning and disassembly assembly, the second positioning and disassembly assembly includes a second suction cup assembly, the second suction cup assembly includes at least one second suction cup, and the second suction cup is used to adsorb or detach from the third shell wall; the disassembly device includes a fourth driving mechanism, the fourth driving mechanism is connected to the second positioning and disassembly assembly and is configured to drive the second positioning and disassembly assembly to move between a position abutting the third shell wall and a position causing the third shell wall to be turned outward.

[0036] In this way, the third shell wall can be kept away from the electrode assembly, which is beneficial for taking out the electrode assembly.

[0037] In some embodiments, the fourth driving mechanism includes a first sliding assembly and a second sliding assembly. The first sliding assembly is connected between the second suction cup assembly and the second sliding assembly. The second suction cup assembly is rotatably connected relative to the first sliding assembly. The first sliding assembly includes a plurality of sliding blocks that are slidably connected to each other. When the second suction cup adsorbs the third shell wall, the control device controls the second sliding assembly to drive the first sliding assembly and then drive the second suction cup assembly to move along the third direction, while the plurality of sliding blocks slide relative to each other along the second direction so that the second suction cup assembly rotates. The second suction cup assembly drives the outward-turned portion in the third shell wall to rotate around the connecting portion to become an outward-turned state.

[0038] This structure is simple and can form the outward-turned portion in the third housing wall into an outward-turned state.

[0039] In some embodiments, the first sliding assembly includes a first sliding block, a second sliding block and a third sliding block, the second suction cup assembly is connected to the first sliding block, the first sliding block is slidably connected to the second sliding block along the second direction, the second sliding block is slidably connected to the third sliding block along the second direction, and when the second suction cup assembly adsorbs the third shell wall, the control device controls the second sliding assembly to drive the first sliding block to move along the third direction and away from the third shell wall, the first sliding block slides in the second direction relative to the second sliding block driven by the second suction cup assembly, and the second sliding block slides in the second direction relative to the third sliding block driven by the first sliding block.

[0040] Therefore, when the fourth driving mechanism drives the second suction cup assembly to move along the third direction and away from the electrode assembly, when the third shell wall and the second suction cup assembly are in an adsorbed state, the second suction cup assembly can move along the second direction and away from the electrode assembly, thereby converting the lateral movement into a pitching movement, so that the outward-turned portion in the third shell wall forms an outward-turned state around the connecting portion.

[0041] In some embodiments, there is an even number of second positioning and disassembly components, and the even number of second positioning and disassembly components are relatively arranged on two opposite sides of the battery placement position along the third direction. A fourth driving mechanism is arranged corresponding to each second positioning and disassembly component, and the control device controls each second positioning and disassembly component to move between the abutment position and the disassembly position.

[0042] Thereby, the battery can be better positioned along the third direction, and the third shell walls opposite to each other along the third direction can be respectively rotated along the connecting portion to become an outward-turned state, which is more conducive to the removal of the electrode assembly.

[0043] In some embodiments, the shell wall includes a fourth shell wall intersecting in the second direction and away from the disassembly platform; the positioning and disassembly assembly includes a fourth positioning member; the disassembly device includes a fifth driving mechanism, which is connected to the fourth positioning member and is configured to drive the fourth positioning member to move between a position abutting the fourth shell wall and a position away from the fourth shell wall.

[0044] Since the control device controls the fifth driving mechanism to drive the fourth positioning member to reach the abutting position with the fourth housing wall or to move away from the abutting position with the fourth housing wall, the battery can be positioned along the second direction by using the fourth positioning member.

[0045] In some embodiments, the disassembly device includes a disassembly platform and a second bracket connected to the disassembly platform, the fifth driving mechanism includes a connected positioning transverse sliding assembly and a positioning vertical sliding assembly, the positioning vertical sliding assembly is connected to the fourth positioning member, the positioning transverse sliding assembly is connected to the second bracket, the control device controls the positioning transverse sliding assembly to drive the positioning vertical sliding assembly to move along the third direction, the control device controls the positioning vertical sliding assembly to drive the fourth positioning member to move along the second direction, and the fourth positioning member abuts against or moves away from the fourth shell wall.

[0046] Thereby, the fourth positioning member can be moved along the third direction and the second direction, which is beneficial for the fourth positioning member to better position the battery along the second direction.

[0047] In some embodiments, the cutting mechanism includes a cutting drive mechanism and a knife, and the cutting drive mechanism can drive the knife to cut the shell to form a cut portion on the shell.

[0048] This enables a cutout portion to be formed in the housing.

[0049] In some embodiments, the tool comprises a milling cutter, which comprises a milling cutter body and a cutting edge arranged along the circumference of the milling cutter body, wherein the cutting edge is used for cutting the housing wall to form the disconnection portion.

[0050] In some embodiments, the milling cutter body includes a limiting section, the blade is arranged in the limiting section, half of the difference between the outer diameter of the blade and the outer diameter of the limiting section is the cutting depth, the cutting depth does not exceed the thickness of the shell wall and the difference with the thickness of the shell wall is in the range of 0.1mm to 2mm.

[0051] Therefore, when cutting the shell wall, the blade cannot continue to cut deeper because of the contact between the limit section and the shell, reducing the probability of the blade cutting the electrode assembly and causing the electrode assembly to break and fail due to the accumulation of various errors. In addition, due to the small thickness difference, the shell can be torn open under the external force of positioning and disassembling the assembly.

[0052] In some embodiments, the control device controls the cutting drive mechanism to drive the tool to move along at least two of the first direction, the second direction and the third direction for cutting and drives the tool to rotate around the first direction to change the blade direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0053] Therefore, the corresponding cutting path can be selected according to the structural characteristics of different types of batteries (such as square wound batteries, square laminated batteries, cylindrical batteries, etc.) to achieve their cutting and disassembly.

[0054] In some embodiments, the disassembly device includes a disassembly platform and a second bracket, a third bracket and a disassembly tray respectively connected to the disassembly platform, the second bracket and the third bracket are arranged along a first direction, the second positioning disassembly assembly is located on the second bracket, the cutting mechanism is located on the third bracket, along the second direction, the disassembly tray is located between the disassembly platform and the second bracket, and between the disassembly platform and the third bracket, the first positioning disassembly assembly, the second positioning member and the third positioning member are located on the disassembly tray, and the control device controls the tray driving mechanism to drive the disassembly tray to move along the first direction, driving the battery to reach the cutting position or the disassembly position.

[0055] This can reduce the interference between some positioning and disassembly components and the cutting mechanism as much as possible, which is conducive to the smooth disassembly of the battery.

[0056] In some embodiments, the disassembly device includes an electrolyte collecting container, which includes a first collecting container and a second collecting container, the volume of the first collecting container is smaller than the volume of the second collecting container, and when the battery is located above the first collecting container, the control device controls the cutting mechanism to cut an electrolyte outflow outlet on the shell wall, or when the battery is located above the second collecting container, the control device controls the cutting mechanism to cut an electrolyte outflow outlet on the shell wall.

[0057] This enables the collection of trace and regular electrolytes, and the collected electrolytes can be used for subsequent detection and analysis.

[0058] In some embodiments, the disassembly device includes a detection device and a fire extinguishing device. The detection device is used to detect whether the battery is on fire. When the detection device detects that the battery is on fire, the control device controls the fire extinguishing device to extinguish the fire.

[0059] It can monitor the battery cells in real time. When an abnormality occurs in the battery cells (such as a battery cell fire), the control device can control the fire extinguishing device to extinguish the fire, thereby reducing the hazards of the battery fire.

[0060] In some embodiments, the fire extinguishing device includes a first box and a second box, the first box has an openable opening, the second box has an openable and closable gate, the gate is located above the open opening, and the second box contains fire extinguishing materials. When the detection device detects that the battery is on fire, the control device controls the positioning and disassembly assembly away from the battery, and the battery falls into the first box through the open opening, and controls the gate of the second box to open, and the fire extinguishing material enters the first box through the open opening to cover the battery.

[0061] In this way, when the battery catches fire, the fire can be extinguished, reducing the probability of the battery fire damaging the equipment.

[0062] The present application also provides a battery disassembly method, which is applied to the above-mentioned disassembly device, wherein the battery comprises a shell, the shell comprises a shell wall, the shell wall comprises a first shell wall perpendicular to a first direction, a second shell wall perpendicular to a second direction, and a third shell wall perpendicular to a third direction, the first direction, the second direction, and the third direction are perpendicular to each other, and the battery disassembly method comprises: positioning the second shell wall along the second direction, wherein the second shell wall is a bottom wall; positioning the first shell wall along the first direction by using a positioning and disassembly assembly; positioning the third shell wall along the third direction by using a positioning and disassembly assembly; cutting the shell wall by using a cutting mechanism to form a disconnection portion, wherein an area partially surrounded by the disconnection portion constitutes an outward-turning portion, and the outward-turning portion is connected to the shell wall outside the outward-turning portion through a connecting portion; and using a positioning and disassembly assembly to absorb the outward-turning portion in the first shell wall and the outward-turning portion in the second shell wall, so that the positioning and disassembly assembly rotates from a contact position to a disassembly position while driving the outward-turning portion in the first shell wall and the outward-turning portion in the second shell wall to rotate around the connecting portion to become an outward-turning state, and the first direction, the second direction, and the third direction are perpendicular to each other.

[0063] This can reduce the difficulty of separating the electrode assembly from the shell, improve the recycling efficiency of battery disassembly, and thus improve the recycling efficiency of waste batteries. It can also reduce the probability of the electrode assembly being failed by precipitates on the inner wall of the shell or scratches on the shell when the electrode assembly is pulled out.

[0064] In some embodiments, before using a cutting mechanism to cut the shell wall to form a disconnected portion, the method also includes: positioning the battery above a first collecting container or a second collecting container for collecting electrolyte, and using a cutting mechanism to cut an electrolyte outflow port in the shell wall, wherein the volume of the second collecting container is greater than the volume of the first collecting container.

[0065] This enables the recovery of the electrolyte and improves the recovery rate.

[0066] In some embodiments, the cut portion is formed by cutting the shell wall using a cutting mechanism, including: cutting the shell wall around the entire circumference of the shell along a first direction and a third direction; and cutting each edge of the shell along a second direction.

[0067] This makes it easy to form a disconnected portion of a predetermined path, making it easier to turn the everted portion into an everted state.

[0068] In some embodiments, the method further includes: removing the electrode assembly contained in the outer shell when the eversion portion in the first shell wall and the eversion portion in the second shell wall are in an everted state; and allowing the positioning and disassembly assembly to release its adsorption on the first shell wall and the second shell wall.

[0069] This makes it easy to recover the electrode assembly and the case wall separately.

[0070] In some embodiments, the method further includes: when a battery fire is detected, dropping the battery into the first box; opening a gate of a second box containing a fire extinguishing material to allow the fire extinguishing material to enter the first box and cover the battery in the first box.

[0071] This can reduce the risk of damage to surrounding equipment and secondary disasters caused by battery fire. The beneficial effects of the present application include: improving the recycling efficiency of waste battery cells and reducing the risk of injury to operators during the recycling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings: Figure 1 A schematic diagram of the three-dimensional structure of a disassembly device provided in some embodiments of the present application; Figure 2 A three-dimensional schematic diagram of the internal structure of a disassembly device provided in some embodiments of the present application; Figure 3 A three-dimensional schematic diagram of the internal structure of a disassembly device provided in some embodiments of the present application; Figure 4 A partial three-dimensional schematic diagram of a disassembly device provided in some embodiments of the present application; Figure 5 A three-dimensional schematic diagram of another internal structure of a disassembling device provided in some embodiments of the present application; Figure 6 Some embodiments of the present application provide Figure 5 A magnified schematic diagram of region A; Figure 7 A schematic diagram of a three-dimensional structure of a third positioning member and its surrounding structure provided in some embodiments of the present application; Figure 8 A schematic diagram of a three-dimensional structure of a second bracket and a structure located on the second bracket provided in some embodiments of the present application; Fig. 9 A schematic diagram of the three-dimensional structure of a second suction cup assembly and a fourth driving mechanism provided in some embodiments of the present application; Fig.10 A schematic diagram of the three-dimensional structure of a fourth positioning member and a fifth driving mechanism provided in some embodiments of the present application; Fig.11 A schematic diagram of a three-dimensional structure of a cutting mechanism provided in some embodiments of the present application; Fig.12A front view of a milling cutter provided for some embodiments of the present application; Fig.13 A schematic diagram of a three-dimensional structure of a milling cutter cutting a housing wall provided in some embodiments of the present application; Fig.14 A schematic diagram of a three-dimensional structure of a milling cutter cutting another position of a housing wall provided in some embodiments of the present application; Fig.15 A schematic diagram of a three-dimensional structure of a battery cell in which a folding portion is in a folded state provided in some embodiments of the present application; Fig.16 A schematic diagram of the three-dimensional structure of a second collection container provided in some embodiments of the present application; Fig.17 A schematic diagram of the three-dimensional structure of a first collecting container provided in some embodiments of the present application; Fig.18 A schematic diagram of the three-dimensional structure of a first box provided in some embodiments of the present application; Fig.19 A schematic diagram of the three-dimensional structure of a second box provided in some embodiments of the present application; Fig. 20 A schematic diagram of a battery disassembly process provided for some embodiments of the present application; Fig.21 Another schematic diagram of a battery disassembly process provided for some embodiments of the present application; Fig. 22 A schematic diagram of another battery disassembly process provided for some embodiments of the present application.

[0073] Description of Reference Numerals 10 disassembling device; 2 positioning disassembling assembly; 21 first positioning disassembling assembly; 211 first positioning member; 2111 first positioning surface; 2112 hole portion; 2115 blocking plate; 212 first suction cup assembly; 2121 first suction cup; 214 limiting block; 2141 limiting surface; 213 first driving mechanism; 2131 output end; 2132 first driving cylinder; 221 second driving mechanism; 221a sliding block; 222 second positioning member; 2221 second positioning surface; 23 second positioning disassembling assembly; 231 third positioning member; 2 32 second suction cup assembly; 2320 fourth driving mechanism; 2321 second suction cup; 2322 first sliding assembly; 23221 first sliding block; 23222 second sliding block; 23223 third sliding block; 23224 bracket; 2323 second sliding assembly; 2331 third driving mechanism; 23311 lifting driving mechanism; 23312 traverse driving mechanism; 23313 sliding frame; 241 fifth driving mechanism; 242 fourth positioning member; 2421 fourth positioning surface; 243 positioning lateral sliding assembly; 244 positioning 251 a vertical sliding assembly; 252 a bottom plate; 253 a disassembling platform; 254 a first bracket; 254a a long hole; 255 a second bracket; 256 a third bracket; 3 a battery; 31 a shell; 311 a shell wall; 3111 a first shell wall; 3112 a second shell wall; 3113 a third shell wall; 3114 a fourth shell wall; 32 an electrode assembly; 33 a disconnecting portion; 34 an everting portion; 35 a connecting portion; 4 a cutting mechanism; 41 a cutting driving mechanism; 411 a cutting horizontal sliding assembly; 412 a cutting vertical sliding assembly; 413 rotating assembly; 42 tool; 421 milling cutter body; 422 limiting section; 423 blade; 62 air blowing protection tube; 63 detection device; 631 temperature detection device; 632 smoke detection device; 64 fire extinguishing device; 641 first box body; 6411 opening; 642 second box body; 6421 gate; 65 electrolyte collection container; 6511 first opening; 651 first collection container; 652 second collection container; 6521 second opening; 66 outer cover; X first direction; Z second direction; Y third direction. DETAILED DESCRIPTION

[0074] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0075] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions.

[0076] In the description of the embodiments of the present application, the technical terms "first", "second", "third", "fourth", "fifth", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0077] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0078] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0079] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "thickness", "up", "down", "left", "right", "top", "bottom", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present application.

[0080] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "connection" and "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0081] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0082] Below, this application is described in detail.

[0083] New energy batteries are increasingly used in life and industry. For example, new energy vehicles equipped with batteries have been widely used. In addition, batteries are increasingly used in the field of energy storage. In new energy vehicles equipped with batteries, batteries can be used to provide power in whole or in part. In the field of energy storage, batteries can be installed in energy storage boxes or directly on the user side.

[0084] As batteries are used more and more widely in life and industry, a large number of waste batteries will be generated. The positive and negative electrode materials of waste batteries are high-energy-consuming materials and have high recycling value. However, crushing the batteries as a whole will result in insufficient purity of the recycled products, which will greatly reduce the economic benefits. Manual cutting of batteries is time-consuming, costly, and dangerous, and it is difficult to cope with the large amount of recycling demand in the future. Therefore, how to improve the recycling efficiency of waste batteries and reduce the risk of harm to operators during the recycling process is one of the research topics in the industry.

[0085] In the related art, the top cover of the battery cell is manually cut and then the electrode assembly is taken out. However, due to the small gap between the electrode assembly and the outer shell accommodating the electrode assembly, the electrode assembly is not easy to be taken out. In addition, the battery assembly will generate heat and expand during use. Therefore, the outer shell of the waste battery cell is in close contact with the electrode assembly, resulting in a large interference force between the outer shell and the electrode assembly, which increases the difficulty of removing the electrode assembly. In the process of removal, the internal structure of the electrode assembly may be damaged and cause fire, which may cause injury to the operator.

[0086] After research, it is considered to use a cutting mechanism to cut the shell wall of the outer shell to form a disconnected portion, and use a positioning and disassembly assembly to separate the completely or partially disconnected shell wall from the electrode assembly. This can reduce the difficulty of separating the electrode assembly from the outer shell, improve the recycling efficiency of the battery cell disassembly, and thus improve the recycling efficiency of waste batteries. Moreover, since there is no need for manual cutting and manual removal of the electrode assembly, the risk of injury to the operator during the recycling process can be reduced.

[0087] Based on such a design concept, the present application provides a disassembly device for disassembling a battery cell, wherein the battery cell includes a shell and an electrode assembly contained in the shell, and the disassembly device includes: a cutting mechanism, configured to cut the shell and form a disconnection portion on the shell wall of the shell; a positioning and disassembly assembly, configured to move between an abutment position and a disassembly position, wherein the positioning and disassembly assembly abuts against the shell wall at the abutment position, and the positioning and disassembly assembly moves from the abutment position in a direction away from the electrode assembly to reach the disassembly position; a control device, configured to control the cutting mechanism to perform cutting, and the disconnection portion formed at least partially surrounds the portion of the shell wall for the positioning and disassembly assembly to abut, and the control device controls the positioning and disassembly assembly to move from the abutment position to the disassembly position while driving the portion of the shell wall abutted against it away from the electrode assembly.

[0088] This can reduce the difficulty of separating the electrode assembly from the casing, improve the recycling efficiency of battery cell disassembly, and thus improve the recycling efficiency of used batteries. In addition, since there is no need for manual cutting and manual pulling out of the electrode assembly, the risk of injury to the operator during the recycling process can be reduced.

[0089] In the embodiment of the present application, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0090] The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the embodiments of the present application.

[0091] A battery cell generally includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator, which is arranged between the negative electrode and the positive electrode. During the charge and discharge process of the battery cell, active ions (such as lithium ions) are embedded and released back and forth between the positive electrode and the negative electrode. The separator is arranged between the positive electrode and the negative electrode to prevent the positive and negative electrodes from short-circuiting, while allowing active ions to pass through.

[0092] In some embodiments, the battery cell further includes an electrolyte, which acts as a conductor of ions between the positive and negative electrodes. The present application has no specific restrictions on the type of electrolyte, which can be selected according to needs. The electrolyte can be liquid, gel or solid.

[0093] The liquid electrolyte includes an electrolyte salt and a solvent.

[0094] In some embodiments, the battery cell may include a shell. The shell may be a steel shell, an aluminum shell, a plastic shell (such as polypropylene), a composite metal shell (such as a copper-aluminum composite shell) or an aluminum-plastic film. In some embodiments, the shell may be a sealed structure or a non-sealed structure. As an example, when the shell is a non-sealed structure, the shell plays a role in protecting the electrode assembly, and a sealed bag is also included between the shell and the electrode assembly, and the sealed bag is used to encapsulate the electrode assembly and the electrolyte. Specifically, the sealed bag may be a bag-shaped insulating member or an aluminum-plastic film. When the shell is a sealed structure, it is used to encapsulate components such as the electrode assembly and the electrolyte.

[0095] As an example, the battery cell may be a cylindrical battery cell, a prismatic battery cell or a battery cell of other shapes. The prismatic battery cell includes a square shell battery cell, a blade-shaped battery cell, a polygonal battery, such as a hexagonal battery, etc. There is no particular limitation in the present application.

[0096] In some embodiments, the housing includes an end cap and a shell, the shell is provided with an opening, and the end cap is provided to cover the opening. The shell may be provided with one or more openings. One or more end caps may also be provided.

[0097] Below, refer to Figures 1 to 22 Some embodiments of the present application are described in detail.

[0098] Figure 1 A schematic diagram of the three-dimensional structure of a disassembly device provided in some embodiments of the present application; Figure 2 A three-dimensional schematic diagram of the internal structure of a disassembly device provided in some embodiments of the present application; Figure 3 A three-dimensional schematic diagram of the internal structure of a disassembly device provided in some embodiments of the present application; Figure 4 A partial three-dimensional schematic diagram of a disassembly device provided in some embodiments of the present application; Figure 5 A three-dimensional schematic diagram of another internal structure of a disassembling device provided in some embodiments of the present application; Figure 6 Some embodiments of the present application provide Figure 5 A magnified schematic diagram of region A; Figure 7 A schematic diagram of a three-dimensional structure of a third positioning member and its surrounding structure provided in some embodiments of the present application; Figure 8 A schematic diagram of a three-dimensional structure of a second bracket and a structure located on the second bracket provided in some embodiments of the present application; Fig. 9 A schematic diagram of the three-dimensional structure of a second suction cup assembly and a fourth driving mechanism provided in some embodiments of the present application; Fig.10 A schematic diagram of the three-dimensional structure of a fourth positioning member and a fifth driving mechanism provided in some embodiments of the present application; Fig.11 A schematic diagram of a three-dimensional structure of a cutting mechanism provided in some embodiments of the present application; Fig.12A front view of a milling cutter provided for some embodiments of the present application; Fig.13 A schematic diagram of a three-dimensional structure of a milling cutter cutting a housing wall provided in some embodiments of the present application; Fig.14 A schematic diagram of a three-dimensional structure of a milling cutter cutting another position of a housing wall provided in some embodiments of the present application; Fig.15 A schematic diagram of a three-dimensional structure of a battery cell in which a folding portion is in a folded state provided in some embodiments of the present application; Fig.16 A schematic diagram of the three-dimensional structure of a second collection container provided in some embodiments of the present application; Fig.17 A schematic diagram of the three-dimensional structure of a first collecting container provided in some embodiments of the present application; Fig.18 A schematic diagram of the three-dimensional structure of a first box provided in some embodiments of the present application; Fig.19 A schematic diagram of the three-dimensional structure of a second box provided in some embodiments of the present application; Fig. 20 A schematic diagram of a battery disassembly process provided for some embodiments of the present application; Fig.21 Another schematic diagram of a battery disassembly process provided for some embodiments of the present application; Fig. 22 A schematic diagram of another battery disassembly process provided for some embodiments of the present application.

[0099] Some embodiments of the present application provide a disassembly device 10 for disassembling a battery 3. Figures 13 to 15 As shown, the battery 3 includes a housing 31 and an electrode assembly 32 contained in the housing 31. Figures 1 to 15 As shown, the disassembly device 10 includes: a cutting mechanism 4, configured to cut the shell 31 and form a cut-off portion 33 on the shell wall 311 of the shell 31; Figures 2 to 10 As shown, the positioning and disassembling component 2 is configured to move between an abutting position and a disassembling position. At the abutting position, the positioning and disassembling component 2 abuts against the shell wall 311, and the positioning and disassembling component 2 at least partially moves from the abutting position in a direction away from the electrode assembly 32 to reach the disassembling position; the control device (not shown) is configured to control the cutting mechanism 4 to perform cutting, and the formed disconnection portion 33 at least partially surrounds the portion of the shell wall 311 for the positioning and disassembling component 2 to abut. The control device (not shown) controls the positioning and disassembling component 2 to move from the abutting position to the disassembling position while driving the abutted portion of the shell wall 311 away from the electrode assembly 32.

[0100] In the present application, the housing 31 may be cylindrical, prism-shaped, or other shapes, and the housing 31 is taken as a rectangular prism-shaped housing for explanation below.

[0101] In some embodiments, Figures 13 to 15As shown, for the convenience of description, the shell walls in the shell wall 311 that are perpendicular to the first direction X and relatively arranged along the first direction X are named “first shell wall 3111”; the shell walls in the shell wall that are perpendicular to the third direction Y and relatively arranged along the third direction Y are named “third shell walls 3113” respectively; the shell walls in the shell wall 311 that are perpendicular to the second direction Z and relatively arranged along the second direction Z are named “second shell wall 3112” and “fourth shell wall 3114”, and the second direction Z can be the height direction of the battery 3, wherein the second shell wall 3112 is the bottom wall and the fourth shell wall 3114 is the top wall; in the present application, “first”, “second”, “third” and “fourth” are only for the convenience of description and have nothing to do with the shape of the shell wall 311 and the size and dimensions of the shell surface of the shell wall 311.

[0102] In the present application, the abutting position refers to the position of the disassembled component 2 when it is in abutment with the shell wall 311, and the disassembly position refers to the position of the disassembled component 2 when it is in a position so that the shell wall 311 is away from the electrode assembly (for example, the outward-turning portion 34 is in an outward-turned state).

[0103] In some embodiments, Figures 13 to 15 As shown, the control device (not shown) is configured to control the cutting mechanism 4 to cut the shell wall 311 of the housing 31 , and the disconnection portion 33 formed on the shell wall 311 at least partially surrounds the portion of the shell wall 311 for the positioning and disassembly assembly to abut.

[0104] The disconnection portion 33 refers to a cut groove formed on the shell wall 311 and passing through or almost passing through the shell wall 311 along the thickness direction of the shell wall 311. The cutting mechanism 4 can form the disconnection portion 33 by cutting around the positioning and disassembling component when the positioning and disassembling component abuts against the shell wall; or it can form the disconnection portion 33 by cutting when another positioning member positions the battery. The disconnection portion 33 partially surrounds the portion of the shell wall for the positioning and disassembling component to abut against, and can be that a small portion of the portion of the shell wall for the positioning and disassembling component to abut against and the surrounding shell wall is not cut but connected, and the rest of the portion is cut into the disconnection portion 33. The range formed by the disconnection portion 33 can enable the portion of the shell wall for the positioning and disassembling component to abut against to be deformed outward around the connected portion under the action of external tension.

[0105] The shape formed by the cut portion 33 can be formed by cutting along a specified cutting route by a cutting mechanism controlled by a control device.

[0106] The control device controls the positioning and disassembling assembly to move from the abutting position to the disassembling position, while driving a portion of the abutting housing wall 311 away from the electrode assembly 32 .

[0107] During the movement of the positioning and disassembly assembly from the abutment position to the disassembly position, the shell wall 311 is kept under tension, for example, by adsorption, or by mechanical connection such as snapping or hooking.

[0108] In the case where the disconnection portion 33 completely surrounds the portion of the housing wall 311 for the positioning and disassembling assembly to abut, as the positioning and disassembling assembly moves from the abutting position to the disassembling position, the portion of the housing wall 311 for the positioning and disassembling assembly to abut is separated from the other portions of the housing wall 311 and the electrode assembly 32, thereby achieving disassembly. In the case where the disconnection portion 33 partially surrounds the portion of the housing wall 311 for the positioning and disassembling assembly to abut, as the positioning and disassembling assembly moves from the abutting position to the disassembling position, the portion of the housing wall 311 for the positioning and disassembling assembly to abut is separated from the other portions of the housing wall 311 and the electrode assembly 32 along the disconnection portion, thereby achieving disassembly. In this case, although the housing wall 311 is not completely separated, since an opening much larger than the electrode assembly 32 is formed, the electrode assembly 32 can be easily removed, for example, by manually taking it out or by a grabbing tool. Since there is no need to manually pull out the electrode assembly 32, the manual operation time is reduced, the disassembly efficiency is improved, and the risk of fire caused by force, collision, friction, etc. is reduced, and the operating danger of the operator is reduced.

[0109] In some embodiments, Figures 13 to 15 As shown, the control device controls the cutting mechanism 4 to cut the shell wall 311, and a disconnection portion 33 is formed on the shell wall 311. The area partially surrounded by the disconnection portion 33 in the shell wall constitutes an outward-turned portion 34, and the outward-turned portion 34 is connected to the shell wall outside the outward-turned portion 34 through a connecting portion 35; at the abutting position, the positioning and disassembling assembly abuts against the outward-turned portion 34; the control device is configured to control the positioning and disassembling assembly 2 to rotate from the abutting position to the disassembling position, while driving the outward-turned portion 34 to rotate around the connecting portion 35 to become an outward-turned state (see Fig.15 , Fig.15 Figures locating disassembled components are omitted).

[0110] For example, Figures 13 to 15 As shown, the cutting mechanism 4 may have a cutter 42. The control device may control the cutter 42 to cut the housing wall 311 along the first direction X, the second direction Z, and the third direction Y to form the disconnection portion 33. Specifically, the cutter 42 may be controlled to cut the entire circumference of the fourth housing wall (top wall) 3114 of the battery cell 3 along the first direction X and the third direction Y, and may cut the four edges (or the vicinity of the edges) of the battery cell 3 extending along the second direction Z along the second direction Z, thereby forming a disconnection portion 33. Fig.15 The disconnected portion shown. Fig.15In the embodiment, the second shell wall (bottom wall) 3112 is connected to other shell walls, and these connected parts are also referred to as "connecting parts".

[0111] Exemplarily, after the battery to be disassembled is positioned, the control device can control the positioning and disassembling assembly 2 to move to the abutting position to abut against the first shell wall 3111 and the third shell wall 3113. After the cutter 42 cuts, the control device controls the positioning and disassembling assembly 2 to move from the abutting position to the disassembling position and pull the two first shell walls 3111 and the two third shell walls 3113 away from the electrode assembly 32. Thus, the two first shell walls 3111 and the two third shell walls 3113 rotate around their respective connecting parts 35 to form a Fig.15 Alternatively, the control device may control the cutting mechanism 4 to cut the connection between the first shell wall 3111 and the third shell wall 3113, the first shell wall 3111 and the fourth shell wall 3114, and / or the third shell wall 3113 and the fourth shell wall 3114 under the positioning of the positioning mechanism, and then the positioning and disassembling assembly 2 is abutted against the first shell wall 3111 and the third shell wall 3113, and the control device controls the positioning and disassembling assembly 2 to rotate from the abutting position to the disassembling position, driving the first shell wall 3111 to rotate around the connection portion 35 between the first shell wall 3111 and the second shell wall 3112 to become an everted state, and driving the third shell wall 3113 to rotate around the connection portion 35 between the third shell wall 3113 and the second shell wall 3112 to become an everted state.

[0112] This can reduce the difficulty of separating the electrode assembly 32 from the shell 31, improve the recycling efficiency of the disassembled battery 3, and further improve the recycling efficiency of used batteries, and can also reduce the risk of fire caused by bumps, friction, etc. during the process of extracting the electrode assembly; in addition, the outward-turned portion is connected to other shell walls through a connecting portion, which can reduce the cutting amount, save cutting time, and improve the disassembly efficiency of the battery.

[0113] In some embodiments, Figures 2 to 15 As shown, the control device (not shown) controls the positioning and disassembling component 2 to move to the abutment position, and controls the cutting mechanism 4 to cut while keeping the positioning and disassembling component 2 at the abutment position, so that the outward-turned portion 34 is formed by the disconnection portion 33. The control device (not shown) controls the positioning and disassembling component 2 to rotate from the abutment position to the disassembly position, while driving the outward-turned portion 34 to rotate around the connecting portion 35 to become an outward-turned state.

[0114] Exemplarily, the control device controls the positioning and disassembly component 2 to abut against the first shell wall 3111 and the third shell wall 3113. When the positioning and disassembly component abuts against the first shell wall 3111 and the third shell wall 3113, the cutting mechanism 4 can be controlled to cut the connection between the first shell wall 3111 and the third shell wall 3113, the connection between the first shell wall 3111 and the fourth shell wall 3114 and / or the connection between the third shell wall 3113 and the fourth shell wall 3114. After the cutting is completed, the control device is configured to control the positioning and disassembly component 2 to rotate from the abutment position to the disassembly position, while driving the first shell wall 3111 to rotate around the connection portion 35 between the first shell wall 3111 and the second shell wall 3112 to become an outward-turned state, and driving the third shell wall 3113 to rotate around the connection portion 35 between the third shell wall 3113 and the second shell wall 3112 to become an outward-turned state.

[0115] Thus, the control device can control the positioning and disassembly assembly to abut against the outward turning portion 34, and then control the cutting mechanism 4 to cut, thereby reducing the probability of the battery 3 moving due to the cutting force during the cutting process, reducing the cutting difficulty, and simplifying the equipment structure.

[0116] In some embodiments, Figure 3 and Figure 4 As shown, the positioning and disassembling assembly 2 includes a first positioning and disassembling assembly 21, which is used to disassemble the first shell wall 3111 in the shell wall 311, and the first shell wall 3111 intersects with the first direction X; the disassembling device includes a first driving mechanism 213, and the first driving mechanism 213 is connected to the first positioning and disassembling assembly 21 and is configured to drive the first positioning and disassembling assembly 21 to move between the abutment position and the disassembly position; the control device (not shown) controls the first driving mechanism 213 to drive the first positioning and disassembly assembly 21 to reach the abutment position or move from the abutment position to the disassembly position.

[0117] The positioning and disassembling assembly moves between the abutment position and the disassembly position under the drive of the driving mechanism. The first positioning and disassembling assembly 21 is used to disassemble the first shell wall 3111 in the shell wall 311. In the case where the shell is generally rectangular, the first shell wall 3111 can be a shell wall perpendicular to the first direction X; of course, the first positioning and disassembling assembly 21 can also disassemble the third shell wall 3113 in the shell wall 311 that is perpendicular to the third direction Y, that is, the first positioning and disassembling assembly 21 is respectively configured for the two pairs of shell walls opposite to each other in the shell wall 311. However, a second positioning and disassembling assembly 23 (described in detail later) having a structure different from that of the first positioning and disassembling assembly 21 can also be provided for the third shell wall 3113 in the shell wall 311 that is perpendicular to the third direction Y.

[0118] In the case where the housing is cylindrical, the first housing wall 3111 may be a portion of the circumferential surface, such as half of the entire circumferential surface. As long as the first positioning and disassembling assembly can abut against the housing wall of the housing and can keep pulling the housing wall to move away from the electrode assembly 32, its shape and structure may be the same as the positioning and disassembling assembly for the rectangular housing. Of course, the shape of the abutting surface may be appropriately changed (for example, changed to an arc surface) to adapt to the shape of the housing wall.

[0119] For example, Figure 3 , Figure 4 , Fig.13 and Fig.15 As shown, the control device controls the first driving mechanism 213 to drive the first positioning and disassembling assembly 21 to abut against the first shell wall 3111. After the cutter 42 cuts the shell wall to form the outward turning portion 34, the control device controls the first driving mechanism 213 to drive the first positioning and disassembling assembly 21 to absorb the first shell wall 3111 and continuously pull the first shell wall 3111 around the connection between the first shell wall 3111 and the second shell wall 3112 (for example, Fig.15 The connecting portion 35 shown is rotated to become an outward-turned state.

[0120] Since the control device controls the first driving mechanism 213 to drive the first positioning and disassembling assembly 21 to reach the contact position or move from the contact position to the disassembly position, the first positioning and disassembling assembly 21 can be used to position the battery 3 and make part of the outward-turning portion 34 in an outward-turning state.

[0121] In some embodiments, Figures 3 to 6 As shown, the first positioning and disassembly assembly 21 includes: a first positioning member 211, having a first positioning surface 2111, and the first positioning surface 2111 is used to abut the first shell wall 3111; a first suction cup assembly 212, including at least one first suction cup 2121, and the first suction cup 2121 is configured to be able to be adsorbed on the outward-turned portion in the first shell wall 3111 or to be detached from the outward-turned portion.

[0122] In some embodiments, Figure 4 and Fig.13As shown, the first positioning member 211 may include an insulating member, at least the portion for contacting the first shell wall 3111 is an insulating member, which is used to insulate the first positioning and disassembly assembly 21 from the first shell wall, wherein the shape of the first positioning surface 2111 is similar to the shape of the first shell wall 3111 in the battery 3 for abutting against the first positioning surface 2111. For example, if the surface of the first shell wall 3111 abutting against the first positioning surface 2111 is a plane, the first positioning surface 2111 may be a plane; if the surface of the first shell wall 3111 abutting against the first positioning surface 2111 is an arc surface, the first positioning surface 2111 may be an arc surface, and when the first positioning surface 2111 abuts against the first shell wall 3111, the first positioning surface 2111 can be tightly attached to the first shell wall 3111.

[0123] In some embodiments, the first suction cup assembly 212 may include one or more first suction cups 2121. For example, the first suction cup 2121 may be a vacuum suction cup, etc. The first suction cup 2121 can be adsorbed on the first housing wall 3111 and drive at least a portion of the first housing wall 3111 to form an everted state. Although not shown in the figure, the disassembly device also includes a gas pipeline and a negative pressure device connected to the gas path of the first suction cup 2121, which are used to achieve the adsorption and release of the first housing wall 3111 by the first suction cup 2121.

[0124] Since the first positioning surface 2111 can abut against the first shell wall 3111, the first positioning and disassembly assembly 21 can position the battery 3; since the first suction cup is configured to be adsorbed on the first shell wall 3111 or detached from the first shell wall 3111, the first positioning and disassembly assembly can be moved to the disassembly position with the first suction cup 2121 adsorbing the outward-turned portion 34, that is, the outward-turned portion 34 is turned outward at a certain angle from its original state to an outward-turned state.

[0125] Since the suction cup assembly is used to adsorb or release the first shell wall 3111, it is possible to realize that the first positioning and disassembly assembly continuously applies a pulling force to the shell wall without additionally providing a structure for mechanical connection on the shell wall. Therefore, it is easy to use and has high disassembly efficiency.

[0126] In some embodiments, Figure 4 As shown, the first positioning member 211 is formed as a block member, and the first positioning member 211 is formed with a hole portion 2112. The first suction cup 2121 is received in the hole portion 2112 and is arranged so that the adsorption surface and the first positioning surface face the same side. When the first positioning surface 2111 abuts against the first shell wall, the first suction cup 2121 can be adsorbed on the outward-turned portion 34 in the first shell wall.

[0127] In some embodiments, the first positioning member 211 is formed with a hole portion 2112. The specific shape of the hole portion 2112 is not specifically limited in the present application, but the hole portion 2112 formed by the first positioning member 211 needs to be able to accommodate the first suction cup 2121. Optionally, there may be multiple holes 2112, and at least one first suction cup 2121 is provided in the hole portion 2112. The adsorption surface of the first suction cup 2121 faces the same side as the first positioning surface 2111, that is, the side where the first shell wall 3111 is located. When the first positioning surface 2111 abuts against the first shell wall 3111, the adsorption surface of the first suction cup 2121 also abuts against the first shell wall 3111 and can be adsorbed on the first shell wall 3111 under the action of negative pressure. The magnitude of the adsorption force can be adjusted by the size of the adsorption surface of the suction cup, the magnitude of the negative pressure, etc.

[0128] Since the first suction cup is received in the hole 2112, the space occupied by the first positioning and disassembling assembly 21 can be saved. When the first positioning surface 2111 is in contact with the shell wall, the first suction cup can be adsorbed on the outer eversion portion of the shell wall, and the shell wall 311 and the electrode assembly 32 can be easily separated, which is beneficial to improving the recycling efficiency of waste batteries.

[0129] In some embodiments, Figures 3 to 6 As shown, the disassembly device 10 also includes a base plate 251, and the first driving mechanism 213 includes a first driving cylinder 2132, the first driving cylinder 2132 is rotatably hinged to the base plate 251, the output end 2131 of the first driving cylinder 2132 is rotatably hinged to the first positioning and disassembly assembly 21, and the first positioning and disassembly assembly 21 is rotatably connected to the base plate 251 relative to the base plate 251, and the first driving cylinder 2132 drives the output end 2131 to drive the first positioning and disassembly assembly 21 to rotate relative to the base plate 251, thereby rotating between the abutment position and the disassembly position.

[0130] For example, Figure 4 and Figure 6 As shown, the output end 2131 of the first driving cylinder 2132 is rotatably hinged to the side of the first positioning and disassembling component 21 away from the first positioning surface 2111 along the first direction X. In addition, the first positioning and disassembling component 21 is rotatably connected to the bottom plate 251 around the third direction Y. Thus, the first positioning and disassembling component 21 can be rotated relative to the bottom plate 251 by extending and retracting the output end 2131 of the first driving cylinder 2132. Specifically, the first positioning member 211 can be pushed to a position abutting the first shell wall 3111, and the first positioning and disassembling component 21 can be pulled to move downward along the side away from the first positioning surface 2111 along the first direction X, so that the first positioning member 211 and the first suction cup assembly 212 are tilted up (the first positioning surface 2111 is tilted upward), so that the first suction cup assembly 212 drives the adsorbed first shell wall 3111 to turn outward.

[0131] Thereby, the action of turning the first housing wall 3111 outward can be easily achieved.

[0132] In some embodiments, Figure 4 and Figure 6 As shown, the disassembly device further includes a limit block 214 , which is mounted on the bottom plate 251 . The limit block 214 has a limit surface 2141 , which is used to limit the maximum angle of rotation of the first positioning and disassembly component 21 in a direction away from the electrode component 32 .

[0133] Exemplarily, the first positioning and disassembly component 21, the first driving mechanism 213 and the limit block 214 are all installed above the base plate 251, wherein the limit block 214 is located substantially below the end of the first positioning and disassembly component 21 away from the first positioning surface 2111 along the first direction X, and is located in the rotation path of the end of the first positioning and disassembly component 21 away from the first positioning surface 2111 along the first direction X, so as to limit the further rotation of the first positioning and disassembly component 21, that is, to limit the maximum angle of rotation of the first positioning and disassembly component 21 in the direction away from the electrode assembly 32, and also to limit the maximum eversion angle of the eversion portion 34 in the first shell wall 3111.

[0134] Therefore, the maximum rotation angle of the first positioning and disassembling assembly 21 can be limited by a simple structure, and the limiting block 214 can be used to stably maintain the position.

[0135] In some embodiments, the limiting surface 2141 is formed to be inclined in a direction that the closer to the electrode assembly 32 and the closer to the bottom plate 251 along the first direction X, the limiting block 214 is installed on the bottom plate 251 and the installation position on the bottom plate 251 is adjustable along the first direction X.

[0136] The limiting surface 2141 is formed as an inclined surface that is inclined in a direction that the closer to the electrode assembly 32 and the closer to the bottom plate 251 along the first direction X, when the first positioning and disassembling assembly 21 is rotated to the maximum angle, it can easily achieve a surface contact and abutment, which is beneficial to reduce vibration during limiting and improve limiting stability. In addition, the limiting block 214 is installed on the bottom plate 251 and the installation position on the bottom plate 251 is adjustable along the first direction X. Therefore, the first positioning and disassembling assembly 21 can abut against different positions on the inclined limiting surface 2141 to achieve different maximum angles.

[0137] The limit block 214 can be slidably mounted on the bottom plate 251 and can be locked in a desired mounting position. Exemplarily, the limit block 214 is mounted on the bottom plate 251 via a first bracket 254, and a long hole 254a extending along the first direction X is provided on the first bracket 254. The position of the first bracket 254 along the first direction X can be adjusted by the cooperation of a fastening bolt (not shown) and the long hole 254a, thereby adjusting the position of the limit block 214.

[0138] In some embodiments, the end of the first positioning member 211 facing away from the first positioning surface 2111 has a blocking plate 2115, which can prevent sparks generated by the tool cutting the shell wall from splashing to other locations, thereby reducing the impact of sparks generated during the tool cutting the shell wall on the disassembly device.

[0139] In some embodiments, Figures 3 to 5 As shown, there is an even number of first positioning and disassembling components 21, and the even number of first positioning and disassembling components 21 are relatively arranged on two opposite sides of the battery placement position along the first direction X. A first driving mechanism 213, a bottom plate 251, and a limit block 214 are arranged corresponding to each first positioning and disassembling component 21, and the control device controls each first positioning and disassembling component 21 to move between the abutment position and the disassembly position.

[0140] Exemplarily, there may be two first positioning and disassembly components 21, which are relatively arranged on two sides of the battery 3 or the battery placement position along the first direction X, one of the first positioning and disassembly components 21 is used to abut against one of the first shell walls 3111, and the other first positioning and disassembly component 21 is used to abut against the other first shell wall 3111.

[0141] Of course, there may be two, three or more pairs of first positioning and disassembling components 21 , and one, two or more pairs of first positioning and disassembling components 21 are respectively arranged on both sides of the battery placement position.

[0142] As a result, the first shell walls 3111 opposite to each other along the first direction X can be rotated along the connecting portion 35 to become an outward-turned state, which is more conducive to efficient removal of the electrode assembly 32.

[0143] In some embodiments, Figure 2 , Figure 3 and Figure 5As shown, the disassembly device 10 includes a disassembly platform 252 and a disassembly tray 253 connected to the disassembly platform 252. The bottom plate 251, together with the first positioning disassembly assembly 21, the first driving mechanism 213, the limit block 214, etc., which are arranged on the bottom plate 251, are all located on the disassembly tray 253. The control device controls the disassembly tray 253 to move along the first direction X, driving the battery cell to move to the cutting position or the disassembly position. At the cutting position, the cutting mechanism 4 can cut the shell; at the disassembly position, the battery 3 can be placed in the battery placement position, or the shell wall after cutting can be turned outward to achieve disassembly.

[0144] For example, when positioning the battery cell or folding the outer folding portion 34, the battery 3 leaves the cutting position and is located at the disassembly position. When cutting the battery cell, the battery cell is located at the cutting position. The cutting position refers to the position of the outer shell when the cutter cuts the outer shell. For example, the cutting position refers to the position of the outer shell when the cutter cuts the outer shell. Figure 2 The bottom of the cutting mechanism 4 is shown.

[0145] In some embodiments, Figure 4 and Fig.13 As shown, the shell wall 311 includes a second shell wall 3112 intersecting in the second direction Z and close to the bottom plate 251, the positioning and disassembly assembly 2 includes a second positioning member 222 for supporting the battery to be disassembled; the disassembly device includes a second driving mechanism 221, the second driving mechanism 221 is connected to the second positioning member 222 and is configured to drive the second positioning member 222 to move along the first direction X between a position abutting the second shell wall 3112 and a position away from the second shell wall 3112, and the second direction Z is perpendicular to the first direction X.

[0146] For example, Figure 3 , Figure 5 , Figure 6 As shown, the second positioning member 222 is installed on the bottom plate 251, and the second driving mechanism 221 drives the bottom plate 251 to move along the first direction X, driving the second positioning member 222 to move along the first direction X between a position abutting the second shell wall 3112 and a position away from the second shell wall 3112.

[0147] The bottom plate 251 can be connected to a screw extending along the first direction X, and the second driving mechanism 221 includes a motor connected to the screw, driving the screw to drive the bottom plate 251 to move along the screw. Exemplarily, the second driving mechanism 221 may include a motor. The screw may include forward and reverse screws, so that as the screw rotates, the two bottom plates 251 may move toward each other or away from each other. Optionally, the bottom plate 251 may be connected to a screw nut provided on the screw; or, the bottom plate 251 moves under the push of a sliding block 221a, and the sliding block 221a is connected to the screw nut.

[0148] In some embodiments, Figure 4 and Fig.13 As shown, the second positioning member 222 has a second positioning surface 2221, and the second positioning surface 2221 is used to abut the second shell wall 3112, specifically, abut the portion of the second shell wall 3112 close to the edge along the first direction X. Along the first direction X, second positioning members 222 are respectively provided on both sides of the battery placement position, respectively supporting the portion of the second shell wall 3112 close to the edge along the first direction X. The second positioning members 222 on both sides are close to each other to support the second shell wall 3112 and thus position and support the battery 3; the second positioning members 222 on both sides are away from each other to remove the support for the second shell wall 3112, and the battery 3 can fall under the action of gravity.

[0149] In some embodiments, the second positioning member 222 includes an insulating member for insulating the battery 3 from the second positioning member 222 .

[0150] In some embodiments, the second positioning surface 2221 is a plane so as to better abut against the second shell wall 3112 .

[0151] In some embodiments, Figure 4 As shown, the first positioning and disassembling assembly 21, the first driving mechanism 213 and the second positioning member 222 are installed on the same side of the bottom plate 251 (for example Figure 4 As shown in the upper side of the figure), the first positioning and disassembling component 21 is located above the second positioning member 222 and is connected to the second positioning member 222 through a pivot (not shown in the figure), and the first positioning and disassembling component 21 is rotatably connected to the pivot. Along the second direction Z, the limit block 214 is erected between the first positioning and disassembling component 21 and the bottom plate 251 through a first bracket 254 connected to the bottom plate 251. Along the first direction X, the second positioning surface 2221 of the second positioning member 222 and the first positioning surface 2111 of the first positioning member are both located on the side close to the battery 3 relative to the limit block 214.

[0152] Since the first positioning and disassembling assembly 21 is located above the second positioning member 222 and connected to the second positioning member 222 via a pivot, the first positioning and disassembling assembly 21 is rotatably connected to the pivot. Therefore, a space can be reserved below the first positioning and disassembling assembly 21 to allow the first positioning and disassembling assembly 21 to rotate and set a limit block 214.

[0153] In some embodiments, Figures 3 to 6 As shown, the disassembly device 10 includes a base plate 251, a disassembly platform 252, a disassembly tray 253 connected to the disassembly platform 252, and a tray driving mechanism. The base plate 251 is located on the disassembly tray 253, and the cutting mechanism 4 is arranged on the disassembly platform 252. The control device controls the tray driving mechanism to drive the disassembly tray 253 to drive the base plate 251 to move along the first direction X, so as to drive the battery to the cutting position or the disassembly position.

[0154] Exemplarily, the tray driving mechanism may be disposed below the disassembling tray 253 , and a sliding surface may be disposed below the disassembling tray 253 . The disassembling tray 253 moves along the first direction X on the sliding surface when driven by the tray driving mechanism.

[0155] Thus, the disassembly tray can drive the battery 3 and the first positioning and disassembly assembly 21 to move to the cutting position, which is conducive to the cutting mechanism 4 cutting the battery shell, and further the battery can be loaded and unloaded and disassembled in a disassembly position avoiding the cutting mechanism 4.

[0156] In some embodiments, Figure 3 , Figure 5 , Figure 7 and Fig.13 As shown, the shell wall 311 includes a third shell wall 3113 intersecting (for example, perpendicular) to the third direction Y; the positioning and disassembly assembly 2 includes a third positioning member 231, and the third positioning member 231 is used to abut the third shell wall 3113; the disassembly device includes a third driving mechanism 2331, and the third driving mechanism 2331 is connected to the third positioning member 231 and is configured to drive the third positioning member 231 to move between a position abutting the third shell wall 3113 and a position away from the abutting the third shell wall 3113, and the first direction X, the second direction Z and the third direction Y are perpendicular to each other.

[0157] The third positioning member 231 is used to abut against the third housing wall 3113 of the battery 3 to position the battery 3. The third positioning member 231 can be respectively provided for two opposite third housing walls 3113, so as to clamp the battery 3 from both sides along the third direction Y. Exemplarily, the third positioning member 231 can position the battery 3 when the disassembly tray 253 supports the battery 3 and moves it from the cutting position to the disassembly position, and can position the battery 3 when the cutting mechanism 4 cuts the housing wall 311.

[0158] The third positioning member 231 may be configured to be movable between a position contacting the third housing wall 3113 and a position away from the contacting position (retracted position).

[0159] The third positioning member 231 is configured to have a positioning surface, and the positioning surface may be in a shape that matches the shape of the shell wall to be abutted. Exemplarily, the third shell wall 3113 is planar, and the positioning surface of the third positioning member 231 is planar.

[0160] The third driving mechanism 2331 may include a lifting driving mechanism 23311 for driving the third positioning member 231 along the second direction Z, that is, the third positioning member 231 may be lifted and lowered. Exemplarily, the third driving mechanism 2331 includes a cylinder for driving the third positioning member 231 to be lifted and lowered, and the third positioning member 231 is connected to the lifting output end of the cylinder. The third driving mechanism 2331 may be disposed on the disassembly tray 253 and may drive the third positioning member 231 to extend from below (the side where the disassembly tray 253 is located) along the second direction Z to a position abutting against the third housing wall 3113 or to retract downward to a retreat position.

[0161] The third driving mechanism 2331 may include a traverse driving mechanism 23312 for driving the third positioning member 231 along the third direction Y. The third positioning member 231 may be arranged on the disassembly tray 253 so as to be movable along the third direction Y relative to the disassembly tray 253. Exemplarily, a slide rail extending along the third direction Y is arranged on the disassembly tray 253. The third positioning member 231 is mounted on the slide rail through a structure such as a sliding frame 23313. The third driving mechanism 2331 includes a motor and a screw rod for driving the third positioning member 231 to slide along the third direction Y. The sliding frame 23313 is connected to a screw rod nut, so that the screw rod can rotate to drive the third positioning member 231 to move along the third direction Y on the slide rail, that is, the third positioning member 231 can be moved closer to or farther away from the battery 3 along the third direction Y. The screw rod may be a forward and reverse screw rod, so that the third positioning members 231 located on both sides of the battery along the third direction Y can move toward or away from each other as the screw rod rotates, so that centering positioning can be easily achieved, and batteries of various specifications can be compatible.

[0162] The third driving mechanism 2331 may include a lifting driving mechanism 23311 for driving the third positioning member 231 along the second direction Z and a traverse driving mechanism 23312 for driving the third positioning member 231 along the third direction Y, so that the third positioning member 231 can move between a position abutting against the third shell wall and a position away from the abutting against the third shell wall along the second direction Z and the third direction Y. Such a design not only improves the freedom of movement of the third positioning member 231, but also improves the compatibility with battery cells of different specifications and improves the flexibility of the device.

[0163] The control device (not shown) controls the third driving mechanism 2331 to drive the third positioning member 231 to reach a position abutting against the third shell wall 3113 or to move away from the position abutting against the third shell wall 3113 .

[0164] Exemplarily, the control device controls the third driving mechanism 2331 to drive the third positioning member 231 to move along the third direction Y to a position where it can abut the third shell wall 3113, and / or controls the third driving mechanism 2331 to drive the third positioning member 231 to move along the second direction Z to a position where it can abut the third shell wall 3113, and the third positioning member 231 reaches the position abutting the third shell wall 3113 and abuts against the third shell wall 3113, thereby positioning the third shell wall 3113 in the third direction Y. When the third positioning member 231 interferes with the cutting action, the third positioning member 231 can move away from the position abutting the third shell wall 3113, thereby preventing the third positioning member 231 from interfering with the cutting action.

[0165] In this way, the battery 3 can be positioned along the third direction Y, and the interference between the third positioning member 231 and the cutting mechanism 4 when the cutting mechanism 4 cuts the shell wall can be reduced, thereby facilitating the cutting mechanism 4 to cut the shell wall.

[0166] In some embodiments, Figure 2 and Figure 7 As shown, the disassembly device 10 has a disassembly platform 252, a disassembly tray 253 connected to the disassembly platform 252, and a tray driving mechanism. The third positioning member 231 and the third driving mechanism 2331 are both located on the disassembly tray 253. The cutting mechanism 4 is disposed on the disassembly platform 252. The control device (not shown) controls the tray driving mechanism to drive the disassembly tray 253 to drive the third positioning member 231 and the third driving mechanism 2331 to move along the first direction X, thereby driving the battery to reach a cutting position or a disassembly position.

[0167] Exemplarily, the tray driving mechanism may be disposed below the disassembling tray 253 , and a sliding surface may be disposed below the disassembling tray 253 . The disassembling tray 253 moves along the first direction X on the sliding surface when driven by the tray driving mechanism.

[0168] Thus, the third positioning member 231 can drive the battery to move to the cutting position, which is beneficial for the cutting mechanism 4 to cut the battery shell.

[0169] In some embodiments, Figure 8 , Fig. 9 , Fig.14 and Fig.15As shown, the positioning and disassembly assembly 2 includes a second positioning and disassembly assembly 23, the second positioning and disassembly assembly 23 includes a second suction cup assembly 232, the second suction cup assembly 232 includes at least one second suction cup 2321, and the second suction cup 2321 is used to adsorb or detach from the third shell wall 3113; the disassembly device includes a fourth driving mechanism 2320, the fourth driving mechanism 2320 is connected to the second positioning and disassembly assembly 23 and is configured to drive the second positioning and disassembly assembly 23 to move between a position abutting the third shell wall 3113 and a position causing the third shell wall 3113 to be turned outward.

[0170] When the second suction cup 2321 adsorbs the outward-turned portion 34 in the third shell wall 3113, the second suction cup assembly 232 moves from the abutment position in the direction away from the electrode assembly 32 to reach the disassembly position, and causes the outward-turned portion 34 in the third shell wall 3113 to rotate around the connecting portion 35 to become an outward-turned state. The control device (not shown) controls the fourth driving mechanism 2320 to drive the second suction cup assembly 232 to reach the abutment position or move from the abutment position to the disassembly position.

[0171] The second suction cup 2321 may be one or more. A plurality of second suction cups 2321 can simultaneously adsorb the third shell wall 3113, thereby improving the adsorption reliability of the second suction cup and the third shell wall 3113. In a specific implementation, the second suction cup 2321 is a vacuum suction cup. Although not shown, the second suction cup 2321 has an air path, which is further connected to the negative pressure device.

[0172] Furthermore, the second suction cup 2321 can absorb the position of the third shell wall 3113 close to the fourth shell wall 3114, which is conducive to the third shell wall 3113 being more easily rotated around the connecting portion 35 to become an everted state.

[0173] Under the control of the control device (not shown), the second suction cup 2321 can be adsorbed on or detached from the third shell wall 3113. When adsorbed on the third shell wall 3113, the second suction cup 2321 can move from the abutment position to the disassembly position, thereby driving the third shell wall 3113 to rotate around the connecting portion 35 to become an outward-turned state.

[0174] Thereby, the third shell wall 3113 can be kept away from the electrode assembly 32 , which is beneficial for removing the electrode assembly 32 .

[0175] In some embodiments, Fig. 9 , Figures 13 to 15As shown, the fourth driving mechanism 2320 includes a first sliding component 2322 and a second sliding component 2323, the first sliding component 2322 is connected between the second suction cup component 232 and the second sliding component 2323, the second suction cup component 232 is rotatably connected relative to the first sliding component 2322, and the first sliding component 2322 includes a plurality of sliding blocks slidably connected to each other; when the second suction cup 2321 adsorbs the third shell wall 3113, the control device controls the second sliding component 2323 to drive the first sliding component 2322 and then drive the second suction cup component 232 to move along the third direction Y, while the plurality of sliding blocks slide relative to each other along the second direction Z so that the second suction cup component 232 rotates, and the second suction cup component 232 drives the outward-turned portion in the third shell wall 3113 to rotate around the connecting portion 35 to become an outward-turned state.

[0176] The first sliding assembly 2322 may include two or three or more sliding blocks that are slidably connected to each other. Fig. 9 A specific example including three sliding blocks is shown. The second suction cup assembly 232 is rotatably connected to the first sliding assembly 2322, specifically, to one of the sliding blocks, via a bracket 23224. The rotation axis of the bracket 23224 can be along a first direction X, so that the bracket 23224 can allow the second suction cup assembly 232 to pitch in a second direction Z.

[0177] The sliding blocks slidably connected to each other can slide under the action of external force, for example, they can slide along the second direction Z under the action of the pulling force between the second sliding component 2323 and the second suction cup component 232. Of course, a driving device can also be provided for the first sliding component to drive one or more of the multiple sliding blocks.

[0178] The second sliding assembly 2323 may include a sliding frame, a sliding rail extending along the third direction Y, and a driving device. The sliding frame can slide along the sliding rail when driven by the driving device, thereby driving the second positioning and disassembly assembly 23 to move between the abutment position and the disassembly position.

[0179] Illustratively, in a state where the second suction cup 2321 adsorbs the third shell wall 3113 and has not started the outward-turning action, the multiple sliding blocks are relatively stationary; the second suction cup assembly 232 is driven by the fourth driving mechanism 2320 to move along the third direction Y and away from the electrode assembly 32, thereby the second suction cup assembly 232 drives at least part of the sliding blocks connected to it to slide along the second direction Z and close to the second shell wall 3112, thereby forming the outward-turning portion 34 in the third shell wall 3113 into an outward-turning state, wherein the entire third shell wall 3113 can serve as a partial outward-turning portion 34.

[0180] This structure is simple and can form the outward-turned portion 34 in the third housing wall 3113 into an outward-turned state.

[0181] In some embodiments, Fig. 9 As shown, the first sliding assembly 2322 includes a first sliding block 23221, a second sliding block 23222 and a third sliding block 23223, the second suction cup assembly 232 is connected to the first sliding block 23221, the first sliding block 23221 is slidably connected to the second sliding block 23222 along the second direction Z, the second sliding block 23222 is slidably connected to the third sliding block 23223 along the second direction Z, and when the second suction cup assembly 232 adsorbs the third shell wall 3113, the control device controls the second sliding assembly 2323 to drive the first sliding block 23221 to move along the third direction Y and away from the third shell wall 3113, the first sliding block 23221 slides (slides downward) along the second direction Z relative to the second sliding block 23222 driven by the second suction cup assembly 232, and the second sliding block 23222 slides (slides downward) along the second direction Z relative to the third sliding block 23223 driven by the first sliding block 23221.

[0182] In some embodiments, there is a blocking structure (not shown) between the first sliding block 23221 and the second sliding block 23222 to prevent the first sliding block 23221 from detaching from the second sliding block 23222; there is a blocking structure (not shown) between the second sliding block 23222 and the third sliding block 23223 to prevent the second sliding block 23222 from detaching from the third sliding block 23223.

[0183] Therefore, when the fourth driving mechanism 2320 drives the second suction cup assembly 232 to move along the third direction Y and away from the electrode assembly 32, when the third shell wall 3113 and the second suction cup assembly 232 are in an adsorbed state, the second suction cup assembly 232 moves along the third direction Y and the second direction Z at the same time. As the second suction cup assembly 232 is tilted up, the outward-turned portion in the third shell wall 3113 forms an outward-turned state around the connecting portion.

[0184] In some embodiments, Figure 2 , Figure 8 and Fig.15 As shown, the disassembling device 10 includes a disassembling platform 252 and a second bracket 255 connected to the disassembling platform 252 , and the second positioning and disassembling assembly 23 and the fourth driving mechanism 2320 are connected to the second bracket 255 .

[0185] In some embodiments, Figure 2 As shown, along the second direction Z, the second bracket 255 is mounted on one side of the disassembly tray 253 where the first positioning and disassembly assembly 21 is arranged, thereby facilitating the arrangement of the second positioning and disassembly assembly 23 and the fourth driving mechanism 2320 on the second bracket 255 .

[0186] In this way, the second suction cup assembly 232 can be moved along the third direction Y, and positional interference between the fourth driving mechanism 2320 and the second suction cup assembly 232 and the third driving mechanism 2331 and the third positioning member 231 can be avoided.

[0187] In some embodiments, Figure 2 , Figure 8 and Fig.13 As shown, there is an even number of second positioning and disassembly components 23, and the even number of second positioning and disassembly components 23 are relatively arranged on two opposite sides of the battery placement position along the third direction Y. A fourth driving mechanism 2320 is arranged corresponding to each second positioning and disassembly component 23, and a control device (not shown) controls each second positioning and disassembly component 23 to move between the abutment position and the disassembly position to abut or leave the third shell wall 3113 respectively.

[0188] Exemplarily, there may be two second positioning and disassembly components 23, and the two second positioning and disassembly components 23 are relatively arranged at the battery placement position or on two opposite sides of the battery 3 along the third direction Y. Two third positioning members 231 are also correspondingly arranged, and one third positioning member 231 and the second suction cup assembly 232 in the second positioning and disassembly component 23 are used to abut against one of the third shell walls 3113, and the other third positioning member 231 and the second suction cup assembly 232 in the second positioning and disassembly component 23 are used to abut against the other third shell wall 3113.

[0189] Thereby, the battery 3 can be better positioned along the third direction Y, and the third shell walls 3113 opposite to each other along the third direction Y can be respectively rotated along the connecting portion 35 to become an outward-turned state, which is more conducive to the removal of the electrode assembly 32.

[0190] In some embodiments, Fig.10 and Fig.13 As shown, the shell wall 311 includes a fourth shell wall 3114 that intersects (for example, is perpendicular to) the second direction Z and is away from the disassembly platform 252; the positioning and disassembly assembly 2 includes a fourth positioning member 242; the disassembly device includes a fifth driving mechanism 241, and the fifth driving mechanism 241 is connected to the fourth positioning member 242 and is configured to drive the fourth positioning member 242 to move between a position abutting the fourth shell wall 3114 and a position away from the fourth shell wall 3114.

[0191] The control device (not shown) controls the fifth driving mechanism 241 to drive the fourth positioning member 242 to a position abutting against the fourth housing wall 3114 or to move away from the position abutting against the fourth housing wall 3114 .

[0192] Exemplarily, the battery 3 is placed on the second positioning member 222, and the control device controls the fifth driving mechanism 241 to drive the fourth positioning member 242 to abut against the fourth shell wall 3114, so that the battery 3 is more effectively positioned along the second direction Z. The control device can control the fifth driving mechanism 241 to drive the fourth positioning member 242 to leave the position of abutting against the fourth shell wall 3114. When the fourth positioning member 242 abuts against the fourth shell wall 3114, the control device can control the tool 42 to cut the shell wall. If the fourth positioning member 242 interferes with the cutting, cutting can also be performed when the fourth positioning member 242 leaves the position of abutting against the fourth shell wall 3114.

[0193] Since the control device controls the fifth driving mechanism 241 to drive the fourth positioning member 242 to reach the abutting position with the fourth housing wall 3114 or to move away from the abutting position with the fourth housing wall 3114 , the battery 3 can be positioned along the second direction Z by using the fourth positioning member 242 .

[0194] In some embodiments, Fig.10 and Fig.13 As shown, the fourth positioning member 242 has a fourth positioning surface 2421 , and the fourth positioning surface 2421 is used to abut against the fourth housing wall 3114 .

[0195] In some embodiments, the fourth positioning member 242 may include an insulating member for insulating the fourth positioning member 242 from the shell wall, wherein the shape of the fourth positioning surface 2421 matches the shape of the fourth shell wall 3114. For example, when the surface of the fourth shell wall 3114 that abuts against the fourth positioning member 242 is a plane, the fourth positioning surface 2421 may be flat, and the surface of the fourth shell wall 3114 that abuts against the fourth positioning member 242 is an arc surface, the fourth positioning surface 2421 may be an arc surface, and when the fourth positioning surface 2421 abuts against the fourth shell wall 3114, the fourth positioning surface 2421 can be tightly attached to the fourth shell wall 3114.

[0196] Since the fourth positioning surface 2421 is used to abut against the shell wall, the fourth positioning member 242 can position the battery 3 along the second direction Z.

[0197] In some embodiments, Figure 2 , Figure 8 and Fig.10 As shown, the disassembling device 10 includes a disassembling platform 252 and a second bracket 255 connected to the disassembling platform 252 , and the fourth positioning member 242 and the fifth driving mechanism 241 are connected to the second bracket 255 .

[0198] For example, Figure 8As shown, the fourth positioning member 242 and the fifth driving mechanism 241 can be connected to the top bracket of the second bracket 255, which is conducive to setting the fourth positioning member 242 and the fifth driving mechanism 241 on the second bracket 255, and is conducive to reducing the interference between the fourth positioning member 242 and the fifth driving mechanism 241 and other positioning and disassembly mechanisms. The fourth positioning member 242 and the fifth driving mechanism 241 can be provided with two, and are relatively connected to the second bracket 255 along the third direction Y. The two fourth positioning members 242 can be abutted against the fourth shell wall 3114 of a battery 3 together, or only one of the fourth positioning members 242 can be used to abut against the fourth shell wall 3114 of a battery 3, which can be determined according to the length of the battery 3 located at the battery placement position along the third direction Y.

[0199] In some embodiments, Figure 8 , Fig.10 and Fig.13 As shown, the disassembly device 10 includes a disassembly platform and a second bracket 255 connected to the disassembly platform, the fifth driving mechanism 241 includes a connected positioning transverse sliding assembly 243 and a positioning vertical sliding assembly 244, the positioning vertical sliding assembly 244 is connected to the fourth positioning member 242, the positioning transverse sliding assembly 243 is connected to the second bracket 255, the control device (not shown) controls the positioning transverse sliding assembly 243 to drive the positioning vertical sliding assembly 244 to move along the third direction Y, the control device (not shown) controls the positioning vertical sliding assembly 244 to drive the fourth positioning member 242 to move along the second direction Z, and the fourth positioning member 242 can abut or move away from the fourth shell wall 3114.

[0200] The positioning transverse sliding assembly 243 and the positioning vertical sliding assembly 244 can slide by means of a cylinder, a motor, etc. Exemplarily, the positioning transverse sliding assembly 243 includes a transverse cylinder and a transverse sliding member, the positioning vertical sliding assembly 244 is connected to the sliding member, and the sliding member is connected to the output end of the cylinder. As the cylinder rod is extended and retracted, the sliding member can be driven to drive the positioning vertical sliding assembly 244 to slide along the third direction Y. The positioning vertical sliding assembly 244 includes a support plate and a vertical cylinder and a vertical sliding member mounted on the support plate. The fourth positioning member 242 is connected to one end of the vertical sliding member, and the vertical sliding member is connected to the output end of the vertical cylinder. As the cylinder rod of the vertical cylinder is extended and retracted, the vertical sliding member can be driven to drive the fourth positioning member 242 to slide along the second direction Z.

[0201] Thereby, the fourth positioning member 242 can be moved along the third direction Y and the second direction Z, which is beneficial for the fourth positioning member 242 to position the battery 3 along the second direction Z more effectively.

[0202] In some embodiments, Figures 11 to 15As shown, the cutting mechanism 4 includes a cutting drive mechanism 41 and a cutter 42 . The cutting drive mechanism 41 can drive the cutter 42 to cut the housing 31 to form a cut portion 33 on the housing 31 .

[0203] Thereby, the cutout portion 33 can be formed in the housing 31 .

[0204] In some embodiments, Figures 12 to 15 As shown, the tool 42 includes a milling cutter, which includes a milling cutter body 421 and a blade 423 arranged along the circumference of the milling cutter body 421 , and the blade 423 is used to cut the housing wall 311 to form the disconnection portion 33 .

[0205] In a specific embodiment, the milling cutter body 421 is a cylinder, and the blade 423 is arranged around the cylinder.

[0206] This makes it easier to cut the housing wall.

[0207] In some embodiments, Figures 12 to 15 As shown, the milling cutter body 421 includes a limiting section 422, and the blade 423 is arranged in the limiting section 422. Half of the difference between the outer diameter of the blade 423 and the outer diameter of the limiting section 422 is the cutting depth D. The cutting depth D does not exceed the thickness of the shell wall 311 and the difference with the thickness of the shell wall 311 is in the range of 0.1mm to 2mm.

[0208] The cutting depth D refers to the outer diameter of the blade 423 minus half of the outer diameter of the limiting section 422 , wherein the outer diameter of the blade 423 refers to the diameter of the outer contour of the blade 423 , and the outer diameter of the limiting section 422 refers to the diameter of the outer contour of the limiting section 422 .

[0209] Optionally, the thickness of the shell wall 311 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm or 2.0mm greater than the cutting depth D, etc. Of course, it can also be other values ​​within the above range.

[0210] During cutting, the limiting section 422 can contact the surface of the housing wall 311, thereby limiting the cutting depth D of the blade 423. When the thickness of the housing wall 311 is greater than the cutting depth D and the difference is within the above range, the everted portion in the housing wall can be everted.

[0211] Therefore, when cutting the shell wall, the probability of the cutter 42 cutting the electrode assembly due to the accumulation of various errors, thereby causing damage to the electrode assembly 32 and causing fire, is further reduced.

[0212] The smaller the difference between the cutting depth D and the thickness of the shell wall 311, the greater the proportion of the disconnected portion to the shell wall thickness along the thickness direction of the shell wall, and the smaller the adsorption force required when the first positioning and disassembly components 21 and the second positioning and disassembly components 23 make the everted portion of the shell wall into an everted state. Thus, the blade 423 can be prevented from cutting the electrode assembly 32 as much as possible, thereby reducing the probability of the electrode assembly 32 catching fire during the disassembly of the battery 3, and under the adsorption of the suction cup, the everted portion is more likely to become an everted state.

[0213] In some embodiments, Fig.11 As shown, the control device controls the cutting drive mechanism 41 to drive the tool 42 to move along at least two of the first direction X, the second direction Z and the third direction Y for cutting and drives the tool 42 to rotate around the first direction X to change the direction of the blade 423. The first direction X, the second direction Z and the third direction Y are perpendicular to each other.

[0214] In some embodiments, Fig.11 As shown, the cutting drive mechanism 41 includes a cutting transverse sliding assembly 411, a cutting vertical sliding assembly 412 and a rotating assembly 413 connected in sequence, the cutting transverse sliding assembly 411 is connected to the third bracket 256, the rotating assembly 413 is connected to the tool 42, and the cutting transverse sliding assembly 411 and the cutting vertical sliding assembly 412 can both adopt a structure in which a slide rail and a slide bracket cooperate. The rotating assembly 413 can include a driving device, such as a motor, the output end of the driving device is connected to the cutter head, the cutter head is connected to the cutter 42, and the cutter head includes a cutter rotation driving device, such as a motor.

[0215] The control device (not shown) controls the cutting horizontal sliding assembly 411 to drive the cutting vertical sliding assembly 412 to move along the third direction Y, and the tool 42 cuts the connection between the first shell wall 3111 and the fourth shell wall 3114 to form a disconnection portion 33; and / or the control device (not shown) controls the cutting vertical sliding assembly 412 to drive the rotating assembly 413 to move along the second direction Z, and the tool 42 cuts the connection between the first shell wall 3111 and the third shell wall 3113 to form a disconnection portion 33.

[0216] The control device may also control the disassembly tray 253 to move along the first direction X, thereby driving the battery 3 to move along the first direction X, and the cutter 42 cuts the connection between the third shell wall 3113 and the fourth shell wall 3114 to form a disconnection portion 33 .

[0217] In some embodiments, Fig.11 and Fig.12 As shown, the control device (not shown) controls the rotating assembly 413 to drive the tool 42 to rotate around the first direction X, thereby changing the direction of the blade 423 of the tool 42, which helps the tool 42 to cut the shell wall more easily to form the disconnection portion 33.

[0218] Therefore, the corresponding cutting path can be selected according to the structural characteristics of different types of batteries (such as square wound batteries, square laminated batteries, cylindrical batteries, etc.) to achieve their cutting and disassembly.

[0219] In some embodiments, Figure 2 , Figure 8 and Fig.11 As shown, the disassembly device 10 includes a disassembly platform 252 and a second bracket 255, a third bracket 256 and a disassembly tray 253 respectively connected to the disassembly platform 252. The second bracket 255 and the third bracket 256 are arranged along the first direction X, the second positioning disassembly component 23 is located on the second bracket 255, and the cutting mechanism 4 is located on the third bracket 256. Along the second direction Z, the disassembly tray 253 is located between the disassembly platform 252 and the second bracket 255, and between the disassembly platform 252 and the third bracket 256. The first positioning disassembly component 21, the second positioning member 222 and the third positioning member 231 are located on the disassembly tray 253. The control device (not shown) controls the tray driving mechanism to drive the disassembly tray 253 to move along the first direction X, so as to drive the battery 3 to reach the cutting position or the disassembly position.

[0220] In some embodiments, Figure 2 As shown, along the second direction Z, the third bracket 256 is mounted on one side of the disassembly tray 253 where the positioning and disassembly mechanism is arranged.

[0221] This facilitates that after the battery 3 is positioned at the disassembly position, it is moved to the cutting position along the first direction X under the drive of the disassembly tray 253, the cutting mechanism 4 cuts the shell wall to form a disconnection portion 33, and it is moved back to the disassembly position along the first direction X under the drive of the disassembly tray 253, and the battery 3 is disassembled using the suction cup.

[0222] Thereby, the interference between the partial positioning and disassembly components and the cutting mechanism 4 can be reduced as much as possible, which is conducive to the smooth disassembly of the battery 3.

[0223] In some embodiments, Figure 2 , Fig.16 and Fig.17 As shown, the disassembly device 10 includes an electrolyte collecting container 65, and the electrolyte collecting container 65 includes a first collecting container 651 and a second collecting container 652. The volume of the first collecting container 651 is smaller than the volume of the second collecting container 652. When the battery 3 is located above the first collecting container 651, the control device controls the cutting mechanism 4 to cut out an electrolyte outflow outlet on the shell wall 311, or when the battery 3 is located above the second collecting container 652, the control device controls the cutting mechanism 4 to cut out an electrolyte outflow outlet on the shell wall 311.

[0224] In some embodiments, the disassembly tray 253 has a first opening, the first collection container 651 has a first open opening 6511, and the second collection container 652 has a second open opening 6521. Each open opening can form a funnel shape. Along the second direction Z, the first collection container 651 and the second collection container 652 are located on the side of the first opening away from the positioning and disassembly component 2 (the lower side of the disassembly tray 253). When the positioning and disassembly component 2 disassembles the battery 3 and / or the cutting mechanism 4 cuts the shell wall, the electrolyte flows into the first open opening 6511 of the first collection container 651 and / or the second open opening 6521 of the second collection container 652 through the first opening. The first collection container 651 and / or the second collection container 652 can be configured to be movable relative to the disassembly tray 253 so that the open opening is aligned with the location of the battery. A collection container matching its capacity can be selected according to the amount of electrolyte in the battery.

[0225] In some embodiments, when the positioning and disassembly assembly 2 disassembles the battery 3 and / or the cutting mechanism 4 cuts the shell wall, the control device can control the first collecting container 651 or the second collecting container 652 to be located below the cutting port, so that the first collecting container 651 or the second collecting container 652 can collect the electrolyte. When there is less electrolyte in the battery, the outflowing electrolyte flows into the first collecting container 651, thereby collecting trace amounts of electrolyte; when there is more electrolyte in the battery, the outflowing large amount of electrolyte flows into the second collecting container 652, thereby collecting conventional electrolyte.

[0226] This enables the collection of trace and regular electrolytes, and the collected electrolytes can be used for subsequent detection and analysis.

[0227] In some embodiments, Figure 1 and Figure 2 As shown, the disassembling device 10 includes a detection device 63 and a fire extinguishing device 64. The detection device is used to detect whether the battery is on fire. When the detection device 63 detects that the battery 3 is on fire, the control device (not shown) controls the fire extinguishing device to extinguish the fire.

[0228] The detection device 63 may include a temperature detection device 631 and a smoke detection device 632. Exemplarily, the temperature detection device 631 is used to detect the temperature of the battery 3, and can be set on the disassembly tray 253 and / or the second bracket 255, and of course can also be set at other suitable locations. The smoke detection device 632 can be set on the top of the outer cover 66 to detect whether the battery 3 is smoking. When the temperature detection device 631 detects that the temperature of the battery exceeds the specified temperature value, and / or the smoke detection device 632 detects a certain amount of smoke, it is determined that the battery is on fire. In response to the detection device 63 detecting that the battery is on fire, the control device controls the fire extinguishing device to extinguish the fire.

[0229] In this way, the battery cells can be monitored in real time. When an abnormality occurs in the battery cells (for example, the battery cells catch fire), the control device can control the fire extinguishing device to extinguish the fire, thereby reducing the harm of the battery 3 catching fire.

[0230] In some embodiments, Figure 2 , Fig.18 and Fig.19 As shown, the fire extinguishing device 64 includes a first box body 641 and a second box body 642, the first box body 641 has an open mouth 6411, the second box body 642 has an openable and closable gate 6421, the gate 6421 is located above the open mouth 6411, and the second box body 642 contains fire extinguishing materials. When the detection device 63 detects that the battery 3 is on fire, the control device controls the positioning and disassembly assembly 2 to be away from the battery, and the battery falls into the first box body 641 through the open mouth 6411, and controls the gate 6421 of the second box body 642 to open, and the fire extinguishing material enters the first box body 641 through the open mouth 6411 to cover the battery.

[0231] In some embodiments, along the second direction Z, the first box body 641 is located on the side of the disassembly tray 253 away from the positioning disassembly assembly, the bottom of the accommodating space of the first box body 641 can be paved with fire sand, and the gate 6421 of the second box body 642 can be opened and closed by an actuator such as a cylinder. When the detection device 63 detects that the battery 3 is on fire, the control device controls the positioning disassembly assembly 2 to leave the shell wall, and the battery 3 falls due to gravity, passes through the disassembly tray 253 and falls into the first box 641. The control device controls the gate 6421 of the second box 642 to open, and the firefighting sand in the second box 642 flows into the first box 641 and buries the battery 3, thereby achieving fire extinguishing, wherein along the first direction X or the third direction Y, the second box 642 is located on one side or both sides of the first box 641, and along the second direction Z, the second box 642 is located between the first box 641 and the disassembly tray 253, thereby after the gate 6421 of the second box 642 is opened, the firefighting sand can flow into the first box 641 under the action of gravity.

[0232] Therefore, when the battery 3 catches fire, the fire of the battery 3 can be extinguished, thereby reducing the probability of the battery 3 catching fire and damaging the equipment.

[0233] In some embodiments, the disassembly device includes a detection instrument (not shown), and the control device controls the tool 42 to cut the shell wall to form a disconnected portion according to the contour of the shell wall detected by the detection instrument.

[0234] The detection instrument can scan the thickness and outer contour of the shell wall, and the tool can cut the shell wall to form a disconnection portion according to the contour of the shell wall detected by the detection instrument, thereby avoiding the tool from cutting the electrode assembly as much as possible and reducing the probability of fire during the disassembly of the battery cell.

[0235] In some embodiments, Fig.11 As shown, the disassembling device includes an air blowing protection tube 62, the air blowing hole of the air blowing protection tube 62 is arranged close to the cutter 42, and the control device (not shown) controls the air blowing protection tube 62 to blow air toward the cutting position when the cutting mechanism 4 cuts.

[0236] This can reduce the temperature of the cutting mechanism 4 when cutting the shell wall, and reduce the probability of the electrode assembly 32 catching fire due to excessive temperature generated during cutting.

[0237] In some embodiments, Figure 1 and Figure 2 As shown, the disassembling device 10 includes an outer cover 66 , and the cutting mechanism 4 and the positioning and disassembling assembly 2 are located inside the outer cover 66 .

[0238] If a battery cell fails and explodes during the disassembly process, the protective cover can reduce the probability of injury to people outside the equipment.

[0239] Some embodiments of the present application provide a battery disassembly method, such as Figure 20 to Figure 22 As shown, the battery disassembly method is applied to the disassembly device 10 for disassembling the battery 3. The battery 3 includes a shell 31, the shell 31 includes a shell wall 311, the shell wall 311 includes a first shell wall 3111 perpendicular to the first direction X, a second shell wall 3112 perpendicular to the second direction Z, and a third shell wall 3113 perpendicular to the third direction Y. The first direction X, the second direction Z, and the third direction Y are perpendicular to each other. The battery disassembly method includes: positioning the second shell wall 3112 along the second direction Z, wherein the second shell wall 3112 is a bottom wall; positioning the first shell wall 3111 along the first direction X using a positioning and disassembly assembly; and positioning the first shell wall 3113 along the third direction Y using a positioning and disassembly assembly. The positioning and disassembling assembly positions the third shell wall 3113; the cutting mechanism 4 is used to cut the shell wall 311 to form a disconnection portion 33, and the area partially surrounded by the disconnection portion 33 constitutes an outward-turned portion, which is connected to the shell wall other than the outward-turned portion 34 through the connecting portion 35; the positioning and disassembling assembly 2 is used to absorb the outward-turned portion in the first shell wall 3111 and the outward-turned portion in the second shell wall 3112, so that the positioning and disassembling assembly 2 rotates from the abutment position to the disassembly position, while driving the outward-turned portion in the first shell wall 3111 and the outward-turned portion in the second shell wall 3112 to rotate around the connecting portion to become an outward-turned state, and the first direction X, the second direction Z and the third direction Y are perpendicular to each other.

[0240] Specifically, the bottom plates 251 located on both sides of the battery placement position along the first direction X are brought close to each other until a specified amount is reached, the battery is placed on the second positioning surface 2221 of the second positioning member 222, each first positioning member 211 is respectively in contact with the first shell wall 3111 of the shell wall perpendicular to the first direction X and positions the battery cell in the first direction X, each third positioning member 231 is respectively in contact with the third shell wall 3113 of the shell wall perpendicular to the third direction Y and positions the battery cell in the third direction Y, the fourth positioning member 242 is in contact with the fourth shell wall 3114 of the shell wall perpendicular to the second direction Z and positions the battery cell in the second direction Z; the disassembly tray 253 is disassembled. Move from the disassembly position to the cutting position, the tool 42 cuts the shell 31 along the first direction X, the second direction Z and the third direction Y to form a disconnection portion 33; move the disassembly tray 253 from the cutting position to the disassembly position, the first suction cup adsorbs the first shell wall 3111 of the shell 31, and moves along the first direction X and away from the electrode assembly while maintaining adsorption, the first shell wall 3111 becomes an outward-turned state, the second suction cup adsorbs the third shell wall 3113 of the shell 31, and moves along the third direction Y and away from the electrode assembly while maintaining adsorption, the third shell wall 3113 becomes an outward-turned state, and the electrode assembly 32 (which can be an electrode assembly connected to a pole) is removed.

[0241] In some embodiments, before using the cutting mechanism 4 to cut the shell wall to form the disconnected portion, it also includes: positioning the battery 3 above the first collecting container 651 or the second collecting container 652 for collecting the electrolyte, and using the cutting mechanism 4 to cut an electrolyte outflow port in the shell wall.

[0242] In some embodiments, the cutter mechanism is used to cut the shell wall to form the disconnected portion, including: cutting the shell wall along the entire circumference of the shell along the first direction X and the third direction Y; and cutting each edge of the shell along the second direction Z.

[0243] In some embodiments, the method further includes: removing the electrode assembly when the eversion portion in the first shell wall and the eversion portion in the second shell wall are in an everted state; and allowing the positioning and disassembly assembly to release its adsorption on the first shell wall 3111 and the third shell wall 3113 .

[0244] In a specific embodiment, see Figure 2 , Figure 3 and Figure 5The control device controls the second positioning member 222 to be located at the disassembly position, and the battery is placed on the second positioning member 222. The control device controls the first positioning member 211 to clamp the battery, and the battery 3 is positioned in the first direction X. The control device controls the third positioning member 231 to clamp the battery, and the battery 3 is positioned in the third direction Y. The control device controls the fourth positioning member 242 to press down, and the battery 3 is positioned in the second direction Z. The control device controls the fourth positioning member 242 to leave the battery housing wall, and the disassembly tray 253 drives the battery to move along the first direction to the cutting position (generally located directly below the cutter of the cutting mechanism 4). The control device controls the first collection container 651 to be located below the battery (see Figure 2 and Fig.17 ), the tool cuts the shell wall to remove the electrolyte outflow outlet, most of the electrolyte flows out and flows into the first collection container 651 or the second collection container 652, the tool 42 cuts the shell wall to form a disconnection portion, the disassembly tray 253 drives the battery to move along the first direction to the disassembly position, the second suction cup assembly 232 adsorbs the third shell wall, the third positioning member 231 leaves the third shell wall, the first suction cup assembly 212 adsorbs the first shell wall, the control device controls the second suction cup assembly 232 and the first suction cup assembly 212 to move in the direction away from the electrode assembly 32 respectively, the first shell wall 3111 and the third shell wall 3113 become outward-turned, the remaining electrolyte flows into the first collection container 651 or the second collection container 652, the electrode assembly is taken out, the first suction cup assembly and the second suction cup assembly break the vacuum, the second positioning member leaves the position abutting the shell wall, and the shell wall falls into the first box.

[0245] This can reduce the difficulty of separating the electrode assembly from the shell, improve the recycling efficiency of battery disassembly, and thus improve the recycling efficiency of waste batteries. It can also reduce the probability of the electrode assembly being failed by precipitates on the inner wall of the shell or scratches on the shell when the electrode assembly is pulled out.

[0246] In some embodiments, the method further includes: when a battery fire is detected, dropping the battery into the first box 641 ; opening the gate 6421 of the second box 642 containing the fire extinguishing material to allow the fire extinguishing material to enter the first box 641 and cover the battery in the first box 641 .

[0247] A specific example of an embodiment of the present application is described below.

[0248] The disassembly mechanism of the present application can disassemble various types of batteries 3, such as square wound batteries, square laminated batteries, cylindrical batteries, etc. The disassembly mechanism of the present application can disassemble batteries 3 whose outer shells 31 are made of various materials such as aluminum or stainless steel, and use the milling cutter body 421 to cut the outer shell 31 according to the corresponding path. The milling cutter body 421 with a limiting section 422 can avoid damaging the electrode assembly as much as possible during the cutting process.

[0249] It is equipped with an electrolyte collection device (a first collection container 651 and / or a second collection container 652) for collecting electrolyte. The bottom and side of the equipment are respectively equipped with a bottom sand box (a first box body 641) and a side sand storage sand box (a second box body 642). Real-time temperature monitoring and smoke monitoring can timely determine whether the battery has abnormal failure, and can automatically identify the action to throw the battery 3 into the bottom sand box and cover it with sand to extinguish the fire.

[0250] After the battery shell 31 is cut and opened, the positioning and disassembly assembly is moved to the disassembly position with the battery 3, and the first shell wall 3111 and the third shell wall 3113 are adsorbed by the suction cup so that the first shell wall 3111 and the third shell wall 3113 are turned outward to facilitate the removal of the electrode assembly inside the shell 31 and reduce the probability of the electrode assembly 32 being scratched and damaged by the cut, causing the battery 3 to fail and catch fire.

[0251] In a specific implementation, the battery 3 can be placed on the second positioning member 222, and the first positioning and disassembly assembly 21 arranged relatively along the first direction X is driven by the servo screw assembly of the second driving mechanism 221 to position and clamp the battery 3 in the first direction X. The third positioning member 231 arranged relatively along the third direction Y is driven by the servo screw assembly of the lateral driving mechanism 23312 to position and clamp the battery 3 in the third direction Y. During the clamping process, the fourth positioning member 242 positions the battery 3 in the height direction (second direction Z), so that the clamping torque is controllable, and the expanded battery 3 can be clamped again after the shell is broken and the pressure is released, and batteries of different sizes can be compatible by simply modifying the program points.

[0252] Part of the positioning disassembly assembly (such as the first positioning disassembly assembly 21) is located on the disassembly tray 253, and the disassembly tray 253 is moved to the bottom of the cutting mechanism 4 along the first direction X by the servo screw assembly at the bottom of the disassembly tray 253. The milling cutter body 421 first cuts one or more notches (electrolyte outflow ports) on the shell 31 so that the electrolyte inside the shell 31 can be discharged. A first collecting container 651 and a second collecting container 652 are arranged below the battery 3. The size of the first collecting container 651 is smaller than that of the second collecting container 652. The first collecting container 651 can be used to collect a small amount of electrolyte discharged from the electrolyte outflow port, and the second collecting container 652 can be used to collect a large amount of electrolyte; or, the second collecting container 652 can be used to collect a large amount of electrolyte discharged from the electrolyte outflow port, and the first collecting container 651 can be used to collect a small amount of residual electrolyte. The corresponding collection container is activated according to the electrolyte content inside the shell 31 to collect the electrolyte, which is conducive to the collection and preservation of trace electrolyte and conventional electrolyte. The collected electrolyte can be used for subsequent detection and analysis.

[0253] After the electrolyte in the shell 31 is almost drained, the milling cutter body 421 cuts the shell 31 according to the cutting path corresponding to the type of battery 3. Taking a conventional square wound battery as an example, it can be disassembled by cutting the entire circumference of the top and the four side edges.

[0254] The partially positioned disassembled assembly drives the battery 3 back to the initial position, and the first suction cup group and the second suction cup group respectively adsorb the shell wall through the first suction cup and the second suction cup to fold the shell wall (for example, the first shell wall 3111 and the third shell wall 3113). The state of the shell wall after folding is as shown in FIG. Fig.15 As shown, in this state, the internal battery cell can be manually taken out, and then the vacuum can be broken by the suction cup to take out the remaining shell 31, thereby enabling cutting of the entire top surface of the battery, the four side edges of the side, the bottom of the bottom surface, etc., and the corresponding cutting path can be selected according to the structural characteristics of different types of batteries such as square wound batteries, square laminated batteries, cylindrical batteries, etc. to achieve cutting and disassembly, even if the internal battery cell is severely expanded, it can be easily taken out, and the first suction cup and the second suction cup can always fit the shell wall during the folding process, which is conducive to the smooth folding of the shell wall. It can avoid as much as possible that the electrode assembly 32 is scratched and invalidated by the precipitate on the inner wall of the shell 31 or the cut of the shell 31 when the electrode assembly 32 is taken out.

[0255] During the entire cutting and folding process, battery 3 has the risk of failure and fire. The equipment is equipped with multiple infrared thermometers and smoke alarms to monitor the failure of battery 3 in real time. If battery 3 is detected to be abnormal, the battery will be automatically thrown into the bottom sand box (first box 641) and the gate of the side sand storage sand box (second box 642) will be opened to pour the firefighting sand stored inside into the bottom sand box to cover battery 3, which is used to bury the failed and catching fire battery and extinguish the fire, thereby reducing the probability of battery 3 catching fire and damaging the disassembly equipment. Real-time monitoring of battery abnormalities can detect abnormalities such as heating and fire in the battery during the disassembly process and automatically perform the battery covering and fire extinguishing action.

[0256] like Figure 7 As shown, the third positioning member 231 is driven by the servo to position and clamp the battery 3 in the forward and reverse directions, which can achieve precise positioning and controllable clamping torque. The expanded battery 3 can be clamped again after the shell is broken and the pressure is released. Batteries of different sizes can be compatible by simply modifying the program points.

[0257] like Fig.16 and Fig.17As shown, batteries 3 of different sizes and systems have different internal electrolyte contents. Since the electrolyte is volatile, if the collecting tank is large, a small amount of electrolyte will completely evaporate in the process of flowing to the bottom of the collecting tank. Therefore, a trace electrolyte collection module (first collection container 651) and a conventional electrolyte collection module (second collection container 652) are set under the battery. Depending on the internal electrolyte content of the battery 3, the corresponding module is activated to collect the electrolyte, and the collected electrolyte is used for subsequent research and analysis.

[0258] like Figure 4 As shown, the first positioning member 211 is connected to the first suction cup, and the cylinder is used for positioning and clamping when it is extended. When the outer shell 31 needs to be folded outward, the suction cup absorbs vacuum and the cylinder retracts, which simplifies the layout of the equipment module. The outward-turned portion 34 in the first shell wall 3111 will slide relative to the first positioning member 211 during the folding process, and the second suction cup can move up and down (follow-up in the second direction Z) in the plug-in slot (not shown), so that the first suction cup is always in contact with and adsorbs the outward-turned portion 34 in the first shell wall 3111 during the folding process.

[0259] like Figure 4 and Figure 5 As shown, the first positioning and disassembly assembly 21 and the second positioning member 222 are both connected to the bottom plate 251, and when the battery 3 needs to be supported, the second positioning member 222 abuts against the second shell wall, the battery 3 fails, and the second driving mechanism 221 drives the second positioning member 222 to leave the abutting position, and the battery falls into the first sandbox at the bottom under the action of gravity, thereby simplifying the structural layout of the disassembly equipment.

[0260] like Figure 7 As shown, the third positioning member 231 can position and clamp the battery 3, and when it is necessary to cut the bottom surface of the battery 3 (for example, the outer surface of the second shell wall 3112), the control device can control the third positioning member 231 to leave the abutment position, thereby avoiding the tool 42. At this time, the first positioning member 211 still keeps clamping the battery 3, and the circumferential cutting of the third shell wall 3113 can be achieved.

[0261] like Fig.16 and Fig.17 As shown, the first collecting container 651 and the second collecting container 652 are both provided with a cylinder telescopic structure. When it is necessary to collect the electrolyte, the cylinder controls the first collecting container 651 and the second collecting container 652 to extend to the bottom of the battery 3. When it is not necessary to collect the electrolyte or the battery 3 fails and is thrown down, the cylinder controls the first collecting container 651 and / or the second collecting container 652 to retract, so that the battery 3 falls smoothly into the first box body 641.

[0262] The path of the cutter 42 cutting the housing 31 is as follows: Figures 13 to 15As shown, the corresponding cutting path can be selected according to the structural characteristics of different types of batteries (such as square wound batteries, square laminated batteries, cylindrical batteries, etc.) to achieve their cutting and disassembly; the function of the blowing protective gas pipe is to blow the protective gas during the cutting process to cool the incision, thereby reducing the probability of sparks generated during the cutting process splashing into the battery 3 and causing failure and fire.

[0263] like Fig.11 As shown, the parameters such as the milling speed, milling feed rate, and milling spindle speed of the milling cutter body 421 are all adjustable, and the milling cutter body 421 can also select various materials and coatings. Therefore, the milling cutter body 421 can cut and disassemble batteries 3 whose shells 31 are made of various materials such as aluminum and stainless steel.

[0264] like Fig.12 As shown, the milling cutter body 421 has a limiting and anti-overcutting function, and the difference between the radius of the blade 423 and the radius of the limiting cylindrical section is related to the thickness of the battery casing 31. The purpose is to prevent the blade from cutting through the casing 31 and not being able to continue cutting deeper due to the contact between the limiting cylindrical section and the casing 31, thereby reducing the probability of the milling cutter body 421 cutting the motor assembly under the accumulation of various errors, thereby causing the electrode assembly 32 to break and fail.

[0265] like Fig.18 and Fig.19 As shown, a layer of firefighting sand is pre-laid inside the bottom sand box (first box body 641). After the battery 3 fails, it will fall into the bottom sand box (first box body 641), and then the cylinder of the side sand storage box (second box body 642) is retracted to open the gate, and the firefighting sand stored inside is poured into the bottom sand box to cover the battery 3.

[0266] like Fig.15 As shown, the folding portion changes its angle during the process of folding outward with the connecting portion 35 as the center, and the first suction cup assembly 212 and the second suction cup assembly 232 have a follower structure (for example Fig. 9 The sliding module can change with the angle of the housing 31 and always fit the folding portion.

[0267] like Fig.10 As shown, the fourth positioning member 242 can be extended and retracted along the second direction Z and the third direction Y, and is used for extending for positioning and retreating for avoidance. The fourth positioning member 242 is made of insulating material to avoid short-circuiting the positive and negative poles of the battery.

[0268] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein.

Claims

1. A disassembly device for disassembling a battery, the battery comprising a housing and an electrode assembly contained in the housing, characterized in that: include: A cutting mechanism configured to cut the shell to form a cut portion on a shell wall of the shell; A positioning and disassembling assembly is configured to move between an abutting position and a disassembling position, wherein the positioning and disassembling assembly abuts against the shell wall at the abutting position, and the positioning and disassembling assembly at least partially moves from the abutting position in a direction away from the electrode assembly to reach the disassembling position; The control device is configured to control the cutting mechanism to perform cutting, and the formed disconnected portion at least partially surrounds the portion of the shell wall for the positioning and disassembly component to abut against. The control device controls the positioning and disassembly component to move from the abutting position to the disassembling position while driving the abutted portion of the shell wall away from the electrode assembly.

2. The disassembling device according to claim 1, characterized in that: The control device controls the cutting mechanism to cut the shell wall, thereby forming the disconnected portion on the shell wall, and the area partially surrounded by the disconnected portion in the shell wall constitutes an outward-turned portion, and the outward-turned portion is connected to the shell wall outside the outward-turned portion through a connecting portion; At the abutting position, the positioning and disassembling assembly abuts against the outward-turned portion; The control device is configured to control the positioning and disassembling assembly to rotate from the abutting position to the disassembling position, while driving the outward-turning portion to rotate around the connecting portion to become an outward-turned state.

3. The disassembling device according to claim 2, characterized in that: The control device controls the positioning and disassembling assembly to move to the abutment position, and controls the cutting mechanism to perform cutting while keeping the positioning and disassembling assembly at the abutment position, so that the outward-turned portion is formed by the disconnection portion. The control device controls the positioning and disassembling assembly to rotate from the abutment position to the disassembly position, while driving the outward-turned portion to rotate around the connecting portion to become an outward-turned state.

4. The disassembling device according to claim 3, characterized in that: The positioning and disassembling assembly includes a first positioning and disassembling assembly, which is used to disassemble a first shell wall among the shell walls, wherein the first shell wall intersects with a first direction; The disassembling device comprises a first driving mechanism, which is connected to the first positioning and disassembling assembly and is configured to drive the first positioning and disassembling assembly to move between the abutting position and the disassembling position; The control device controls the first driving mechanism to drive the first positioning and disassembling assembly to reach the abutting position or move from the abutting position to the disassembling position.

5. The disassembling device according to claim 4, characterized in that: The first positioning and disassembly component comprises: A first positioning member having a first positioning surface, wherein the first positioning surface is used to abut against the first housing wall; The first suction cup assembly includes at least one first suction cup, wherein the first suction cup is configured to be able to be adsorbed on the outward-turned portion in the first shell wall or to be detached from the outward-turned portion.

6. The disassembling device according to claim 5, characterized in that: The first positioning member is formed as a block member, and a hole portion is formed in the first positioning member. The first suction cup is received in the hole portion and arranged so that the adsorption surface and the first positioning surface face the same side. When the first positioning surface abuts against the first shell wall, the first suction cup can be adsorbed on the outward-turned portion in the first shell wall.

7. The disassembling device according to claim 6, characterized in that: The disassembling device further comprises a bottom plate, The first driving mechanism comprises a first driving cylinder, the first driving cylinder is rotatably hinged to the base plate, the output end of the first driving cylinder is rotatably hinged to the first positioning and disassembling assembly, and the first positioning and disassembling assembly is rotatably connected relative to the base plate. The first driving cylinder drives the output end to drive the first positioning and disassembling assembly to rotate relative to the bottom plate, thereby rotating between the abutting position and the disassembling position.

8. The disassembling device according to claim 7, characterized in that: The disassembling device also includes a limit block installed on the bottom plate. The limiting block has a limiting surface, and the limiting surface is used to limit the maximum angle of rotation of the first positioning and disassembling assembly in a direction away from the electrode assembly.

9. The disassembling device according to claim 8, characterized in that: The limiting surface is formed to be inclined in a direction closer to the electrode assembly and closer to the bottom plate along the first direction, The limiting block is installed on the bottom plate, and the installation position on the bottom plate is adjustable along the first direction.

10. The dismantling device according to claim 8 or 9, characterized in that: The first positioning and disassembling components are in an even number, and the even number of the first positioning and disassembling components are relatively arranged on two sides of the battery placement position that are opposite to each other along the first direction. The first driving mechanism, the bottom plate, and the limit block are arranged corresponding to each of the first positioning and disassembling components, and the control device controls each of the first positioning and disassembling components to move between the abutment position and the disassembly position.

11. The disassembling device according to claim 10, characterized in that: The housing wall includes a second housing wall intersecting in the second direction and close to the bottom plate, The positioning and disassembling assembly includes a second positioning member, which is used to support the battery to be disassembled; The disassembling device includes a second driving mechanism, which is connected to the second positioning member and is configured to drive the second positioning member to move along a first direction between a position abutting against a second shell wall and a position away from the second shell wall, wherein the second direction is perpendicular to the first direction.

12. The disassembling device according to claim 11, characterized in that: The first positioning and disassembling assembly, the first driving mechanism and the second positioning member are installed on the same side of the bottom plate, the first positioning and disassembling assembly is located above the second positioning member and is connected to the second positioning member via a pivot, and the first positioning and disassembling assembly is rotatably connected to the pivot. Along the second direction, the limit block is installed between the first positioning and disassembly assembly and the bottom plate through a first bracket connected to the bottom plate. Along the first direction, the second positioning surface of the second positioning member and the first positioning surface of the first positioning member are located on a side close to the battery relative to the limiting block.

13. The disassembling device according to claim 12, characterized in that: The disassembly device includes a base plate, a disassembly platform, a disassembly tray connected to the disassembly platform, and a tray driving mechanism, wherein the base plate is located on the disassembly tray, and the cutting mechanism is arranged on the disassembly platform. The control device controls the tray driving mechanism to drive the disassembly tray to drive the base plate to move along the first direction, thereby driving the battery to reach a cutting position or a disassembly position.

14. The dismantling device according to any one of claims 3 to 9, characterized in that: The housing wall includes a third housing wall intersecting in a third direction; The positioning and disassembly assembly comprises a third positioning member, and the third positioning member is used to abut against the third shell wall; The disassembling device includes a third driving mechanism, which is connected to the third positioning member and is configured to drive the third positioning member to move between a position abutting the third shell wall and a position away from the third shell wall, and the first direction, the second direction and the third direction are perpendicular to each other.

15. The dismantling device according to claim 14, characterized in that: The disassembling device comprises a disassembling platform, a disassembling tray connected to the disassembling platform, and a tray driving mechanism, the third positioning member and the third driving mechanism are both located on the disassembling tray, and the cutting mechanism is arranged on the disassembling platform. The control device controls the tray driving mechanism to drive the disassembly tray to drive the third positioning member and the third driving mechanism to move along the first direction, and drive the battery to a cutting position or a disassembly position.

16. The dismantling device according to any one of claims 3 to 9, characterized in that: The positioning and disassembling assembly includes a second positioning and disassembling assembly, the second positioning and disassembling assembly includes a second suction cup assembly, the second suction cup assembly includes at least one second suction cup, and the second suction cup is used to absorb or detach from the third shell wall; The disassembling device includes a fourth driving mechanism, which is connected to the second positioning and disassembling assembly and is configured to drive the second positioning and disassembling assembly to move between a position abutting against the third shell wall and a position causing the third shell wall to be turned outward.

17. The disassembling device according to claim 16, characterized in that: The fourth driving mechanism comprises a first sliding assembly and a second sliding assembly, the first sliding assembly is connected between the second suction cup assembly and the second sliding assembly, the second suction cup assembly is rotatably connected relative to the first sliding assembly, and the first sliding assembly comprises a plurality of sliding blocks slidably connected to each other; When the second suction cup adsorbs the third shell wall, the control device controls the second sliding assembly to drive the first sliding assembly and then drive the second suction cup assembly to move along the third direction, while the plurality of sliding blocks slide relatively along the second direction so that the second suction cup assembly rotates, and the second suction cup assembly drives the outward-turned portion in the third shell wall to rotate around the connecting portion to become an outward-turned state.

18. The dismantling device according to claim 17, characterized in that: The first sliding assembly includes a first sliding block, a second sliding block and a third sliding block, the second suction cup assembly is connected to the first sliding block, the first sliding block is slidably connected to the second sliding block along a second direction, and the second sliding block is slidably connected to the third sliding block along the second direction. When the second suction cup assembly adsorbs the third shell wall, the control device controls the second sliding assembly to drive the first sliding block to move along the third direction and away from the third shell wall, and the first sliding block slides along the second direction relative to the second sliding block under the drive of the second suction cup assembly, and the second sliding block slides along the second direction relative to the third sliding block under the drive of the first sliding block.

19. The disassembling device according to claim 18, characterized in that: The second positioning and disassembling components are in an even number, and the even number of the second positioning and disassembling components are relatively arranged on two opposite sides of the battery placement position along the third direction. The fourth driving mechanism is arranged corresponding to each of the second positioning and disassembling components, and the control device controls each of the second positioning and disassembling components to move between the abutment position and the disassembly position.

20. The disassembling device according to claim 15, characterized in that: The housing wall includes a fourth housing wall intersecting in the second direction and away from the disassembly platform; The positioning and disassembly assembly includes a fourth positioning member; The disassembling device includes a fifth driving mechanism, which is connected to the fourth positioning member and is configured to drive the fourth positioning member to move between a position abutting against the fourth housing wall and a position away from the fourth housing wall.

21. The dismantling device according to claim 20, characterized in that: The disassembling device comprises a disassembling platform and a second bracket connected to the disassembling platform. The fifth driving mechanism comprises a connected positioning transverse sliding assembly and a positioning vertical sliding assembly, wherein the positioning vertical sliding assembly is connected to the fourth positioning member, and the positioning transverse sliding assembly is connected to the second bracket. The control device controls the positioning transverse sliding assembly to drive the positioning vertical sliding assembly to move along the third direction. The control device controls the positioning vertical sliding assembly to drive the fourth positioning member to move along the second direction. The fourth positioning member abuts against or moves away from the fourth shell wall.

22. The dismantling device according to any one of claims 3 to 9, characterized in that: The cutting mechanism includes a cutting drive mechanism and a cutter, and the cutting drive mechanism can drive the cutter to cut the shell to form the cut portion on the shell.

23. The dismantling device according to claim 22, characterized in that: The tool comprises a milling cutter, which comprises a milling cutter body and a cutting edge arranged along the circumference of the milling cutter body, wherein the cutting edge is used for cutting the housing wall to form the disconnection portion.

24. The dismantling device according to claim 23, characterized in that: The milling cutter body comprises a limiting section, and the blade is arranged in the limiting section. Half of the difference between the outer diameter of the blade and the outer diameter of the limiting section is the cutting depth, and the cutting depth does not exceed the thickness of the shell wall and the difference with the thickness of the shell wall is in the range of 0.1 mm to 2 mm.

25. The dismantling device according to claim 22, characterized in that: The control device controls the cutting drive mechanism to drive the tool to move along at least two of a first direction, a second direction and a third direction for cutting and drives the tool to rotate around the first direction to change the direction of the blade, wherein the first direction, the second direction and the third direction are perpendicular to each other.

26. The dismantling device according to claim 25, characterized in that: The disassembling device comprises a disassembling platform and a second bracket, a third bracket and a disassembling tray respectively connected to the disassembling platform. The second bracket and the third bracket are arranged along the first direction, the second positioning and disassembly assembly is located on the second bracket, and the cutting mechanism is located on the third bracket. Along the second direction, the disassembly tray is located between the disassembly platform and the second bracket, and between the disassembly platform and the third bracket. The first positioning disassembly assembly, the second positioning member and the third positioning member are located on the disassembly tray. The control device controls the tray driving mechanism to drive the disassembly tray to move along the first direction, driving the battery to reach a cutting position or a disassembly position.

27. The dismantling device according to any one of claims 3 to 9, characterized in that: The disassembling device comprises an electrolyte collection container, wherein the electrolyte collection container comprises a first collection container and a second collection container, wherein the volume of the first collection container is smaller than the volume of the second collection container, When the battery is located above the first collecting container, the control device controls the cutting mechanism to cut out an electrolyte outlet on the housing wall, or When the battery is located above the second collecting container, the control device controls the cutting mechanism to cut an electrolyte outflow port on the housing wall.

28. The dismantling device according to any one of claims 3 to 9, characterized in that: The disassembling device comprises a detection device and a fire extinguishing device. The detection device is used to detect whether the battery is on fire. When the detection device detects that the battery is on fire, the control device controls the fire extinguishing device to extinguish the fire.

29. The dismantling device according to claim 28, characterized in that: The fire extinguishing treatment device comprises a first box and a second box, wherein the first box has an open opening, the second box has an openable and closable gate, the gate is located above the open opening, and the second box contains fire extinguishing materials. When the detection device detects that the battery is on fire, the control device controls the positioning and disassembly assembly to move away from the battery, and the battery falls into the first box through the open opening, and controls the gate of the second box to open, and the fire extinguishing material enters the first box through the open opening to cover the battery.

30. A battery disassembly method, applied to a disassembly device according to any one of claims 1 to 29 for disassembling a battery, characterized in that: The battery comprises a shell, the shell comprises a shell wall, the shell wall comprises a first shell wall perpendicular to a first direction, a second shell wall perpendicular to a second direction, and a third shell wall perpendicular to a third direction, the first direction, the second direction and the third direction are perpendicular to each other, The battery disassembly method comprises: Positioning the second shell wall along the second direction, wherein the second shell wall is a bottom wall; positioning the first shell wall along the first direction using a positioning and disassembly assembly; positioning the third shell wall along the third direction using a positioning and disassembly assembly; The shell wall is cut by a cutting mechanism to form a cut-off portion, wherein the area partially surrounded by the cut-off portion constitutes an outward-turned portion, and the outward-turned portion is connected to the shell wall outside the outward-turned portion through a connecting portion; The positioning and disassembly component is used to absorb the outward-turned portion in the first shell wall and the outward-turned portion in the second shell wall, so that the positioning and disassembly component rotates from the abutment position to the disassembly position, and at the same time drives the outward-turned portion in the first shell wall and the outward-turned portion in the second shell wall to rotate around the connecting portion to become an outward-turned state, and the first direction, the second direction and the third direction are perpendicular to each other.

31. The battery disassembly method according to claim 30, characterized in that: Before using a cutting mechanism to cut the housing wall to form a disconnected portion, the method further includes: The battery is placed above a first collecting container or a second collecting container for collecting electrolyte, and a cutting mechanism is used to cut an electrolyte outflow port on the shell wall.

32. The battery disassembly method according to claim 30, characterized in that: Cutting the housing wall by a cutting mechanism to form a disconnected portion comprises: Cutting the entire circumference of the shell wall of the shell along the first direction and the third direction; Each edge of the shell is cut along the second direction.

33. The battery disassembly method according to claim 30, characterized in that: The method further comprises: When the outward-turned portion in the first shell wall and the outward-turned portion in the second shell wall are in an outward-turned state, taking out the electrode assembly accommodated in the shell; The positioning and disassembling assembly releases adsorption of the first shell wall and the second shell wall.

34. The battery disassembly method according to any one of claims 30 to 33, characterized in that: The method further comprises: When it is detected that the battery is on fire, causing the battery to fall into a first box; The gate of the second box containing the fire extinguishing material is opened to allow the fire extinguishing material to enter the first box and cover the battery located in the first box.

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