Disassembly Device and Battery Disassembly Method

Abstract

An embodiment of the present application provides a disassembly device and a battery disassembly method, the disassembly device being used to disassemble a battery, the battery comprising a shell and an electrode assembly housed 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 abutting position and a disassembly position, wherein the positioning and disassembly assembly abuts against the shell wall at the abutting position, and the positioning and disassembly assembly at least partially moves from the abutting 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, wherein the disconnection portion formed at least partially surrounds a 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 abutting position to the disassembly position while driving a portion of the abutted shell wall away from the electrode assembly, thereby improving the recycling efficiency of waste batteries, reducing manual participation, and reducing the risk of fire during the disassembly process.

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 being used in everyday life and industry. For example, battery-powered new energy vehicles are already widely used. Furthermore, batteries are increasingly being used in energy storage and other fields. In new energy vehicles, batteries can provide full or partial power. In energy storage, batteries can be installed in energy storage boxes or directly at the user's side.

[0003] As batteries become increasingly widely used in daily life and industry, a large amount of waste batteries will be generated. The positive and negative electrode materials in waste batteries are energy-intensive and have high recycling value. However, crushing batteries as a whole results in insufficient purity of the recycled product, significantly reducing economic benefits. Manual battery cutting is time-consuming, costly, and dangerous, making it difficult to meet the large-scale recycling demand in the future. Therefore, how to improve the recycling efficiency of waste batteries and reduce the risk of injury to operators during the recycling process is a research topic in the industry. Summary of the Invention

[0004] 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 used batteries and reduce the risk of injury to operators during the recycling process. This application is achieved 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 housed 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; 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, 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 broken portion is formed on the shell wall. The area partially surrounded by the broken 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 part, or the control device can first control the positioning and disassembly assembly to abut against the outward-turned part, 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 part to rotate around the connecting part and become an outward-turned state, the outer shell and the electrode assembly can be separated, 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 cut while keeping the positioning and disassembly assembly in the abutment position, 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 the 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 the abutment position and the 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 battery can be positioned by the first positioning and disassembling assembly, and part of the outward-turning portion can be turned outward.

[0013] In some embodiments, the first positioning and disassembly assembly includes: a first positioning member having a first positioning surface, the first positioning surface being used to abut against the first shell wall; a first suction cup assembly including at least one first suction cup, the first suction cup being 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 outward-turned portion become an outward-turned state.

[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 in the first shell wall.

[0016] Because the first suction cup is housed in the hole, the space occupied by the first positioning and disassembly assembly can be reduced. Furthermore, when the first positioning surface abuts the first housing wall, the first suction cup can be attached to the outward-turned portion of the first housing wall, saving time in separating the first housing wall from the electrode assembly and improving the recycling efficiency of used 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 contact position and the disassembly position to turn the first housing wall outward.

[0019] In some embodiments, the disassembly device further includes 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] In this way, the movement range of the first positioning and disassembling component between the abutting position and the disassembling position can be limited, thereby limiting the maximum rotation angle.

[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 are an even number of first positioning and disassembly components, and the even number of first positioning and disassembly components are relatively arranged on two opposite sides of the battery placement position along the first direction. 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] In this way, the first shell walls that are opposite to each other along the first direction can be rotated along the connecting portion to become an outward-turned state, which is more conducive to removing the electrode assembly.

[0025] In some embodiments, the shell wall includes a second shell wall that intersects in the second direction and is 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 mounted 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] Because the first positioning and disassembly assembly is located above the second positioning member and is pivotally connected to the second positioning member, it is rotatably connected to the pivot. Therefore, space is left below the first positioning and disassembly assembly to allow for its rotation and to accommodate a stop block. Furthermore, because the stop block is mounted between the first positioning and disassembly assembly and the second drive mechanism via a first bracket connected to the base plate, this further reduces the space occupied by the first positioning and disassembly assembly and the second drive mechanism, further miniaturizing the disassembly 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 provided on the disassembly platform. The control device controls the tray driving mechanism to drive the disassembly tray to move the base plate along the first direction, driving the battery to reach the cutting position or the disassembly position.

[0030] Thus, the disassembly tray can drive the battery to move to the cutting position or the disassembly position, which is beneficial for cutting and disassembling the battery shell with reduced interference.

[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, which is used to abut the third shell wall; the disassembly 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 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 provided 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, driving the battery to reach the cutting position or the disassembly position.

[0034] Thus, the third positioning member can drive the battery to move to the cutting position or the disassembly position, which is beneficial for cutting and disassembling the battery shell with reduced interference.

[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 drive mechanism, the fourth drive 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 convenient for removing 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 multiple 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 multiple 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 and 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 are 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 provided 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] This enables the battery to be better positioned along the third direction, and enables the third shell walls opposite to each other along the third direction to be 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 or 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 or moves away from the fourth shell wall.

[0046] This enables the fourth positioning member to move along the third direction and the second direction, which helps 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 allows 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] As a result, when cutting the shell wall, the blade cannot penetrate further due to contact between the stopper and the shell, reducing the probability of the blade cutting into the electrode assembly due to various errors, thereby causing damage to the electrode assembly and failure. Moreover, due to the small thickness difference, the shell can be torn open under the external force applied to position and disassemble 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 the first direction, the second positioning 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, and the control device controls the tray driving mechanism to drive the disassembly tray to move along the first direction, driving the battery to 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 smooth disassembly of the battery.

[0056] In some embodiments, the disassembly device includes an electrolyte collection container, which includes a first collection container and a second collection container. 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 collection 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 collection 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 battery cells in real time. When an abnormality occurs in a battery cell (such as a battery cell fire), the control device can control the fire extinguishing device to extinguish the fire, thereby reducing the harm 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 material. 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 includes a shell, the shell includes a shell wall, the shell wall includes a first shell wall perpendicular to the first direction, a second shell wall perpendicular to the second direction, and a third shell wall perpendicular to the third direction, the first direction, the second direction, and the third direction are perpendicular to each other, and the battery disassembly method includes: 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; cutting the shell wall 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; using the 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 casing, 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 scratched and failing by precipitates on the inner wall of the casing or cuts in the casing when the electrode assembly is pulled out.

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

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

[0066] In some embodiments, the cutting 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 and the third direction; and cutting each edge of the shell along the second direction.

[0067] This makes it possible to easily form a disconnected portion along a predetermined path, making it easier to turn the everted portion into the everted state.

[0068] In some embodiments, the method further includes: removing the electrode assembly contained in the outer shell 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; 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 possible to easily 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, allowing 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 this 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 skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to denote the same components. In the drawings:

[0073] Figure 1 A schematic diagram of the three-dimensional structure of a disassembly device provided in some embodiments of the present application;

[0074] Figure 2 A schematic three-dimensional diagram of the internal structure of a disassembly device provided in some embodiments of the present application;

[0075] Figure 3 A schematic perspective view of the internal structure of a disassembly device provided in some embodiments of the present application;

[0076] Figure 4 A partial three-dimensional schematic diagram of a disassembly device provided in some embodiments of the present application;

[0077] Figure 5 A schematic three-dimensional diagram of another internal structure of a disassembly device provided in some embodiments of the present application;

[0078] Figure 6 Some embodiments of the present application provide Figure 5 A magnified schematic diagram of area A;

[0079] Figure 7 A schematic diagram of the three-dimensional structure of a third positioning member and its surrounding structure provided in some embodiments of the present application;

[0080] Figure 8 A schematic diagram of the three-dimensional structure of a second bracket and a structure located on the second bracket provided in some embodiments of the present application;

[0081] Figure 9 A schematic diagram of the three-dimensional structure of the second suction cup assembly and the fourth driving mechanism provided in some embodiments of the present application;

[0082] Figure 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;

[0083] Figure 11 A schematic diagram of the three-dimensional structure of a cutting mechanism provided in some embodiments of the present application;

[0084] Figure 12 A front view of a milling cutter provided for some embodiments of the present application;

[0085] Figure 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;

[0086] Figure 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;

[0087] Figure 15 A schematic diagram of a three-dimensional structure of a battery cell provided in some embodiments of the present application, wherein the folding portion is in a folded state;

[0088] Figure 16 A schematic diagram of the three-dimensional structure of a second collection container provided in some embodiments of the present application;

[0089] Figure 17 A schematic diagram of the three-dimensional structure of a first collecting container provided in some embodiments of the present application;

[0090] Figure 18 A schematic diagram of the three-dimensional structure of a first box provided in some embodiments of the present application;

[0091] Figure 19 A schematic diagram of the three-dimensional structure of a second box provided in some embodiments of the present application;

[0092] Figure 20 A schematic diagram of a battery disassembly process provided for some embodiments of the present application;

[0093] Figure 21 Another schematic flow chart of battery disassembly steps provided for some embodiments of the present application;

[0094] Figure 22 A schematic flow chart of another battery disassembly process is provided for some embodiments of the present application.

[0095] Description of Reference Numerals

[0096] 10 disassembly device; 2 positioning disassembly assembly; 21 first positioning disassembly 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 disassembly assembly; 231 third positioning member; 2 32 Second suction cup assembly; 2320 Fourth drive 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 drive mechanism; 23311 Lifting drive mechanism; 23312 Transverse drive mechanism; 23313 Sliding rack; 241 Fifth drive mechanism; 242 Fourth positioning member; 2421 Fourth positioning surface; 243 Positioning transverse sliding assembly; 244 Fixed 251 vertical sliding assembly; 252 bottom plate; 253 disassembly platform; 254 first bracket; 254a long hole; 255 second bracket; 256 third bracket; 3 battery; 31 housing; 311 housing wall; 3111 first housing wall; 3112 second housing wall; 3113 third housing wall; 3114 fourth housing wall; 32 electrode assembly; 33 disconnecting portion; 34 eversion portion; 35 connecting portion; 4 cutting mechanism; 41 cutting drive mechanism; 411 cutting horizontal sliding assembly; 412 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 housing; 641 Opening; 642 Second housing; 6421 Gate; 65 Electrolyte collecting container; 6511 First opening; 651 First collecting container; 652 Second collecting container; 6521 Second opening; 66 Outer cover; X first direction; Z second direction; Y third direction. DETAILED DESCRIPTION

[0097] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0098] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art 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.

[0099] In the description of the embodiments of this application, the technical terms "first," "second," "third," "fourth," "fifth," etc. are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly indicate the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0100] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0101] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0102] 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 device or element referred to 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.

[0103] In the description of the embodiments of this application, unless otherwise specified or limited, technical terms such as "connection" and "fixed" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection between two elements or the interaction between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0104] 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 can be direct contact, contact through an intermediate medium layer, contact with essentially no interaction force between the two contacting parties, or contact with interaction force between the two contacting parties.

[0105] Below, this application is described in detail.

[0106] New energy batteries are increasingly being used in everyday life and industry. For example, battery-powered new energy vehicles are already widely used. Furthermore, batteries are increasingly being used in energy storage and other fields. In new energy vehicles, batteries can provide full or partial power. In energy storage, batteries can be installed in energy storage boxes or directly at the user's side.

[0107] As batteries become increasingly widely used in daily life and industry, a large amount of waste batteries will be generated. The positive and negative electrode materials in waste batteries are energy-intensive and have high recycling value. However, crushing batteries as a whole results in insufficient purity of the recycled product, significantly reducing economic benefits. Manual battery cutting is time-consuming, costly, and dangerous, making it difficult to meet the large-scale recycling demand in the future. Therefore, how to improve the recycling efficiency of waste batteries and reduce the risk of injury to operators during the recycling process is a research topic in the industry.

[0108] 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 that accommodates the electrode assembly, the electrode assembly is not easy to remove. In addition, the battery assembly will generate heat and expand during use. Therefore, the outer shell of the used 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 removal process, the internal structure of the electrode assembly may be damaged and cause fire, which may cause injury to the operator.

[0109] 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.

[0110] 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 accommodated 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 away from the electrode assembly.

[0111] 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. 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.

[0112] 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.

[0113] The battery cells can be lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-hydrogen batteries, nickel-cadmium batteries, lead-acid batteries, etc., which are not limited in the embodiments of the present application.

[0114] A battery cell typically includes an electrode assembly. This assembly consists of a positive electrode, a negative electrode, and a separator, which is positioned between the positive and negative electrodes. During the charge and discharge process of a battery cell, active ions (such as lithium ions) are inserted and removed between the positive and negative electrodes. The separator, positioned between the positive and negative electrodes, prevents short circuits while allowing the active ions to pass through.

[0115] In some embodiments, the battery cell also includes an electrolyte, which acts as a conductor of ions between the positive and negative electrodes. This application does not specifically limit the type of electrolyte, and the electrolyte can be selected based on needs. The electrolyte can be liquid, gel, or solid.

[0116] The liquid electrolyte includes an electrolyte salt and a solvent.

[0117] In some embodiments, a battery cell may include an outer shell. This outer 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 outer shell may be sealed or non-sealed. For example, in a non-sealed outer shell, the outer shell protects the electrode assembly and includes a sealing bag between the outer shell and the electrode assembly, which encapsulates the electrode assembly and electrolyte. Specifically, the sealing bag may be a bag-shaped insulating member or an aluminum-plastic film. In a sealed outer shell, the outer shell encapsulates the electrode assembly, electrolyte, and other components.

[0118] As an example, the battery cell can 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 special limitation in this application.

[0119] In some embodiments, the housing includes an end cap and a shell, wherein the shell has an opening and the end cap covers the opening. The shell may have one or more openings. One or more end caps may also be provided.

[0120] Below, refer to Figures 1 to 22 Some embodiments of the present application are described in detail.

[0121] 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 schematic three-dimensional diagram of the internal structure of a disassembly device provided in some embodiments of the present application; Figure 3 A schematic perspective view 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 schematic three-dimensional diagram of another internal structure of a disassembly 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 area A; Figure 7 A schematic diagram of the 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 the three-dimensional structure of a second bracket and a structure located on the second bracket provided in some embodiments of the present application; Figure 9 A schematic diagram of the three-dimensional structure of the second suction cup assembly and the fourth driving mechanism provided in some embodiments of the present application; Figure 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; Figure 11 A schematic diagram of the three-dimensional structure of a cutting mechanism provided in some embodiments of the present application; Figure 12A front view of a milling cutter provided for some embodiments of the present application; Figure 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; Figure 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; Figure 15 A schematic diagram of a three-dimensional structure of a battery cell provided in some embodiments of the present application, wherein the folding portion is in a folded state; Figure 16 A schematic diagram of the three-dimensional structure of a second collection container provided in some embodiments of the present application; Figure 17 A schematic diagram of the three-dimensional structure of a first collecting container provided in some embodiments of the present application; Figure 18 A schematic diagram of the three-dimensional structure of a first box provided in some embodiments of the present application; Figure 19 A schematic diagram of the three-dimensional structure of a second box provided in some embodiments of the present application; Figure 20 A schematic diagram of a battery disassembly process provided for some embodiments of the present application; Figure 21 Another schematic flow chart of battery disassembly steps provided for some embodiments of the present application; Figure 22 A schematic flow chart of another battery disassembly process is provided for some embodiments of the present application.

[0122] 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 housed in the housing 31. Figures 1 to 15 As shown, the disassembling device 10 includes: a cutting mechanism 4 configured to cut the shell 31 and form a cut portion 33 on the shell wall 311 of the shell 31; Figures 2 to 10 As shown, the positioning and disassembly 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 disassembly component 2 to abut. The control device (not shown) controls the positioning and disassembly component 2 to move from the abutting position to the disassembling position while driving the abutting portion of the shell wall 311 away from the electrode assembly 32.

[0123] In the present application, the housing 31 may be cylindrical, prismatic, or in other shapes. The following description will take the case where the housing 31 is in the shape of a rectangular parallelepiped prism as an example.

[0124] In some embodiments, as Figures 13 to 15As shown, for the convenience of description, the shell walls 311 perpendicular to the first direction X and arranged oppositely along the first direction X are named "first shell walls 3111"; the shell walls 311 perpendicular to the third direction Y and arranged oppositely along the third direction Y are named "third shell walls 3113" respectively; the shell walls 311 perpendicular to the second direction Z and arranged oppositely along the second direction Z are named "second shell walls 3112" and "fourth shell walls 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 this 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.

[0125] In the present application, the abutment position refers to the position where the disassembled component 2 is located when it abuts against the shell wall 311, and the disassembly position refers to the position where the disassembled component 2 is located when it is positioned 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).

[0126] In some embodiments, as 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 cut-off 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.

[0127] The disconnect portion 33 refers to a cut formed on the shell wall 311 that passes through or nearly passes through the shell wall 311 along the thickness direction of the shell wall 311. The cutting mechanism 4 can form the disconnect portion 33 by cutting around the positioning and disassembly component when the positioning and disassembly component is in contact with the shell wall; or it can form the disconnect portion 33 by cutting when another positioning member is used to position the battery. The disconnect portion 33 partially surrounds the portion of the shell wall where the positioning and disassembly component abuts. It can be that a small portion of the portion of the shell wall where the positioning and disassembly component abuts is not cut but connected to the surrounding shell wall, and the rest of the portion is cut to form the disconnect portion 33. The range formed by the disconnect portion 33 can enable the portion of the shell wall where the positioning and disassembly component abuts to deform outward around the connected portion under the action of external tension.

[0128] The shape formed by the breaking portion 33 can be formed by cutting along a prescribed cutting route by a cutting mechanism controlled by a control device.

[0129] The control device controls the positioning and disassembling assembly to move from the contact position to the disassembly position, while driving the portion of the housing wall 311 that it contacts away from the electrode assembly 32 .

[0130] During the movement of the positioning and disassembly assembly from the abutment position to the disassembly position, a pulling force is maintained on the shell wall 311 . For example, the pulling force can be applied to the shell wall 311 by adsorption, or by mechanical connection such as snapping or hooking.

[0131] When the cutout portion 33 completely surrounds the portion of the housing wall 311 where the positioning and disassembly assembly abuts, as the positioning and disassembly assembly moves from the abutting position to the disassembling position, the portion of the housing wall 311 where the positioning and disassembly assembly abuts moves away from the other portions of the housing wall 311 and the electrode assembly 32, thereby achieving disassembly. When the cutout portion 33 partially surrounds the portion of the housing wall 311 where the positioning and disassembly assembly abuts, as the positioning and disassembly assembly moves from the abutting position to the disassembling position, the portion of the housing wall 311 where the positioning and disassembly assembly abuts moves away from the other portions of the housing wall 311 and the electrode assembly 32 along the cutout portion, thereby achieving disassembly. In this case, although the housing wall 311 is not completely separated, the opening formed is much larger than the electrode assembly 32, making it easy to remove the electrode assembly 32, for example, by manual removal or using a grasping tool. Since there is no need to manually pull out the electrode assembly 32, manual labor time is reduced, disassembly efficiency is improved, and the risk of fire caused by force, collision, friction, etc. is reduced, thereby reducing the operational risks for operators.

[0132] In some embodiments, as Figures 13 to 15 As shown, the control device controls the cutting mechanism 4 to cut the shell wall 311, thereby forming a break portion 33 on the shell wall 311. The area partially surrounded by the break 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; in 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 Figure 15 , Figure 15 (Diagrams locating disassembled components omitted.)

[0133] For example, Figures 13 to 15 As shown, the cutting mechanism 4 may include 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 to 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. Figure 15 The disconnected portion shown. Figure 15In the embodiment, the second shell wall (bottom wall) 3112 is connected to the other shell walls, and these connected parts are also called "connecting parts".

[0134] For example, after the battery to be disassembled is positioned, the control device can control the positioning and disassembly component 2 to move to the abutting position and 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 disassembly component 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. As a result, the two first shell walls 3111 and the two third shell walls 3113 rotate around their respective connecting parts 35 to form a Figure 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 disassembly assembly 2 is brought into contact with the first shell wall 3111 and the third shell wall 3113. The control device controls the positioning and disassembly assembly 2 to rotate from the contact position to the disassembly 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 enter the 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 enter the everted state.

[0135] 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 thus improve the recycling efficiency of waste batteries. It can also reduce the risk of fire caused by bumps, friction, etc. during the extraction of the electrode assembly; in addition, the outward-turned portion is connected to other shell walls through a connecting portion, which can reduce the amount of cutting, save cutting time, and improve the disassembly efficiency of the battery.

[0136] In some embodiments, as Figures 2 to 15 As shown, the control device (not shown) controls the positioning and disassembly assembly 2 to move to the abutment position, and controls the cutting mechanism 4 to perform cutting while maintaining the positioning and disassembly assembly 2 in the abutment position, thereby forming an outward-turned portion 34 through the disconnection portion 33. The control device (not shown) controls the positioning and disassembly assembly 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.

[0137] 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 part 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 part 35 between the third shell wall 3113 and the second shell wall 3112 to become an outward-turned state.

[0138] 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.

[0139] In some embodiments, as Figure 3 and Figure 4 As shown, the positioning and disassembly assembly 2 includes a first positioning and disassembly 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 disassembly device includes a first driving mechanism 213, which is connected to the first positioning and disassembly assembly 21 and is configured to drive the first positioning and disassembly assembly 21 to move between an abutment position and a 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.

[0140] The positioning and disassembly assembly moves between an abutment position and a disassembly position under the drive of the drive mechanism. The first positioning and disassembly 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 disassembly 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 disassembly assembly 21 is respectively configured for the two pairs of mutually opposing shell walls in the shell wall 311. However, a second positioning and disassembly assembly 23 (described in detail later) having a structure different from that of the first positioning and disassembly 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.

[0141] In the case of a cylindrical housing, the first housing wall 3111 may be a portion of the circumference, such as half of the entire circumference. As long as the first positioning and disassembly assembly can abut the housing wall and maintain its pull away from the electrode assembly 32, its shape and structure can be the same as those for the positioning and disassembly assembly used for a rectangular housing. Of course, the shape of the abutting surface can also be appropriately modified (e.g., to a curved surface) to match the shape of the housing wall.

[0142] For example, Figure 3 、 Figure 4 、 Figure 13 and Figure 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 housing wall 3111. After the cutter 42 cuts the housing wall to form the outward-turned portion 34, the control device controls the first driving mechanism 213 to drive the first positioning and disassembling assembly 21 to absorb the first housing wall 3111 and continuously pull the first housing wall 3111 around the connection between the first housing wall 3111 and the second housing wall 3112 (for example, Figure 15 The connecting portion 35 shown is rotated to become an outward-turned state.

[0143] Since the control device controls the first driving mechanism 213 to drive the first positioning and disassembling assembly 21 to 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 partially turn the outward-turning portion 34 into an outward-turning state.

[0144] In some embodiments, as 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 detached from the outward-turned portion.

[0145] In some embodiments, as Figure 4 and Figure 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.

[0146] In some embodiments, the first suction cup assembly 212 may include one or more first suction cups 2121. For example, the first suction cups 2121 may be vacuum cups, etc. The first suction cups 2121 are capable of adsorbing onto the first housing wall 3111 and causing at least a portion of the first housing wall 3111 to be turned outward. Although not shown in the figures, the disassembly device also includes a gas pipeline and a negative pressure device in communication with the gas path of the first suction cups 2121 to enable the first suction cups 2121 to attach and release the first housing wall 3111.

[0147] 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 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-turning portion 34, that is, the outward-turning portion 34 is turned outward at a certain angle from its original state to an outward-turned state.

[0148] Since the suction cup assembly is used to adsorb or release the first shell wall 3111, the first positioning and disassembly assembly can continuously apply tension to the shell wall without providing an additional structure for mechanical connection on the shell wall. Therefore, it is easy to use and has high disassembly efficiency.

[0149] In some embodiments, as Figure 4 As shown, the first positioning member 211 is formed as a block-shaped 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 is in contact with the first shell wall, the first suction cup 2121 can be adsorbed on the outward-turned portion 34 in the first shell wall.

[0150] In some embodiments, the first positioning member 211 is formed with a hole 2112. This application does not specifically limit the specific shape of the hole 2112, but the hole 2112 formed by the first positioning member 211 must be able to accommodate the first suction cup 2121. Optionally, there may be multiple holes 2112, each containing at least one first suction cup 2121. The suction surface of the first suction cup 2121 faces the same side as the first positioning surface 2111, i.e., the side where the first shell wall 3111 is located. When the first positioning surface 2111 abuts the first shell wall 3111, the suction surface of the first suction cup 2121 also abuts the first shell wall 3111 and can be adsorbed to 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 suction cup's suction surface, the magnitude of the negative pressure, and the like.

[0151] Because the first suction cup is received in the hole 2112, the space occupied by the first positioning and disassembly assembly 21 is reduced. Furthermore, when the first positioning surface 2111 abuts the housing wall, the first suction cup can be attached to the outward-turned portion of the housing wall, making it easy to separate the housing wall 311 from the electrode assembly 32, thereby improving the recycling efficiency of used batteries.

[0152] In some embodiments, as 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, and the output end 2131 of the first driving cylinder 2132 is rotatably hinged to the first positioning and disassembly assembly 21. The first positioning and disassembly assembly 21 is rotatably connected to the base plate 251 relative to the base plate 251. 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.

[0153] 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 disassembly component 21 away from the first positioning surface 2111 along the first direction X. In addition, the first positioning and disassembly component 21 is rotatably connected to the base plate 251 around the third direction Y. Thus, the output end 2131 of the first driving cylinder 2132 can be extended and retracted to rotate the first positioning and disassembly component 21 relative to the base plate 251. Specifically, the first positioning member 211 can be pushed to a position abutting the first shell wall 3111, or the first positioning and disassembly component 21 can be pulled downward along the first direction X away from the first positioning surface 2111 to make the first positioning member 211 and the first suction cup assembly 212 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.

[0154] Thereby, the action of turning the first housing wall 3111 outward can be easily achieved.

[0155] In some embodiments, as 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 assembly 32 .

[0156] 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 outward turning angle of the outward turning portion 34 in the first shell wall 3111.

[0157] In this way, the maximum rotation angle of the first positioning and disassembling assembly 21 can be limited with a simple structure, and the limiting block 214 can be used to stably maintain the position.

[0158] In some embodiments, the limiting surface 2141 is formed to be inclined in a direction that the closer it is to the electrode assembly 32 and the closer it is 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.

[0159] The limiting surface 2141 is formed as an inclined surface that tilts in a direction that moves closer to the electrode assembly 32 and closer to the bottom plate 251 along the first direction X. When the first positioning and disassembly assembly 21 is rotated to its maximum angle, it can easily achieve surface contact and abutment, which helps reduce vibration during positioning and improve positioning stability. In addition, the limiting block 214 is mounted on the bottom plate 251 and its mounting position on the bottom plate 251 is adjustable along the first direction X. Therefore, the first positioning and disassembly assembly 21 can abut against different positions on the inclined limiting surface 2141 to achieve different maximum angles.

[0160] The limit block 214 can be slidably mounted on the base plate 251 and can be locked in a desired mounting position. For example, the limit block 214 is mounted on the base plate 251 via a first bracket 254. The first bracket 254 has an elongated hole 254a extending along the first direction X. A fastening bolt (not shown) engages with the elongated hole 254a to adjust the position of the first bracket 254 along the first direction X, thereby adjusting the position of the limit block 214.

[0161] 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 the sparks generated during the tool cutting the shell wall on the disassembly device.

[0162] In some embodiments, as Figures 3 to 5 As shown, there is an even number of first positioning and disassembly components 21, and the even number of first positioning and disassembly 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 provided corresponding to each first positioning and disassembly component 21, and the control device controls each first positioning and disassembly component 21 to move between the abutment position and the disassembly position.

[0163] Exemplarily, there may be two first positioning and disassembly components 21, which are relatively arranged on two opposite 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.

[0164] Of course, the first positioning and disassembling components 21 can also be two, three or more pairs, and one, two or more pairs of first positioning and disassembling components 21 are respectively arranged on both sides of the battery placement position.

[0165] As a result, the first shell walls 3111 that are 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.

[0166] In some embodiments, as 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 base plate 251, together with the first positioning and disassembly assembly 21, the first drive mechanism 213, the limit block 214, etc. provided on the base 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 cells to a cutting position or a disassembly position. In the cutting position, the cutting mechanism 4 can cut the outer shell; in the disassembly position, the battery 3 can be placed in the battery placement position, or the cut shell wall can be turned outward to achieve disassembly.

[0167] For example, when positioning the battery cell or folding the outer 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 shell when the tool cuts the shell. For example, the cutting position refers to the position of the shell when the tool cuts the shell. Figure 2 The bottom of the cutting mechanism 4 is shown.

[0168] In some embodiments, as Figure 4 and Figure 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.

[0169] For example, Figure 3 、 Figure 5 、 Figure 6 As shown, the second positioning member 222 is installed on the base plate 251, and the second driving mechanism 221 drives the base 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.

[0170] The base plate 251 can be connected to a screw extending along the first direction X, and the second drive mechanism 221 includes a motor connected to the screw, driving the screw to drive the base plate 251 to move along the screw. Exemplarily, the second drive mechanism 221 can include a motor. The screw can include forward and reverse screws, so that as the screw rotates, the two base plates 251 can move towards each other or away from each other. Optionally, the base plate 251 can be connected to a screw nut provided on the screw; or, the base plate 251 moves under the push of a sliding block 221a, which is connected to the screw nut.

[0171] In some embodiments, as Figure 4 and Figure 13 As shown, the second positioning member 222 has a second positioning surface 2221, which is configured to abut the second housing wall 3112, specifically, the portion of the second housing wall 3112 near the edge along the first direction X. Along the first direction X, second positioning members 222 are provided on either side of the battery placement location, respectively supporting the portion of the second housing wall 3112 near the edge along the first direction X. When the second positioning members 222 on either side are brought closer together, they support the second housing wall 3112 and, consequently, position and support the battery 3. When the second positioning members 222 on either side are moved away from each other, they remove their support for the second housing wall 3112, allowing the battery 3 to fall under the action of gravity.

[0172] In some embodiments, the second positioning member 222 includes an insulating member for insulating the battery 3 from the second positioning member 222 .

[0173] In some embodiments, the second positioning surface 2221 is a plane so as to better abut against the second shell wall 3112 .

[0174] In some embodiments, as Figure 4 As shown, the first positioning and disassembly component 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 disassembly 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). The first positioning and disassembly component 21 is rotatably connected to the pivot. Along the second direction Z, the limit block 214 is mounted between the first positioning and disassembly 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.

[0175] Since the first positioning and disassembling assembly 21 is located above the second positioning member 222 and is connected to the second positioning member 222 via a pivot, the first positioning and disassembling assembly 21 is rotatably connected to the pivot. Therefore, space can be left below the first positioning and disassembling assembly 21 to allow the first positioning and disassembling assembly 21 to rotate and to provide a limit block 214.

[0176] In some embodiments, as 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 provided 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, driving the battery to reach the cutting position or the disassembly position.

[0177] Illustratively, the tray driving mechanism may be provided below the disassembly tray 253 , and a sliding surface may be provided below the disassembly tray 253 . The disassembly tray 253 moves along the first direction X on the sliding surface under the drive of the tray driving mechanism.

[0178] Thus, the disassembly tray can drive the battery 3 and the first positioning and disassembly component 21 to move to the cutting position, which is conducive to the cutting mechanism 4 cutting the battery shell, and further avoiding the disassembly position of the cutting mechanism 4 to load and unload and disassemble the battery.

[0179] In some embodiments, as Figure 3 、 Figure 5 、 Figure 7 and Figure 13 As shown, the shell wall 311 includes a third shell wall 3113 that intersects (for example, is 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.

[0180] 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 provided for two opposing third housing walls 3113, thereby clamping the battery 3 from both sides along the third direction Y. For example, the third positioning member 231 can position the battery 3 while the disassembly tray 253 supports the battery 3 and moves it from the cutting position to the disassembly position. The third positioning member 231 can also position the battery 3 while the cutting mechanism 4 cuts the housing wall 311.

[0181] The third positioning member 231 may be configured to be movable between a position contacting the third housing wall 3113 and a position (retracted position) away from the contacting position.

[0182] 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. For example, the third shell wall 3113 is planar, and the positioning surface of the third positioning member 231 is configured to be planar.

[0183] The third drive mechanism 2331 may include a lifting drive mechanism 23311 that drives the third positioning member 231 along the second direction Z, i.e., the third positioning member 231 can be raised and lowered. Exemplarily, the third drive mechanism 2331 includes a cylinder for driving the third positioning member 231 upward and downward, with the third positioning member 231 connected to the cylinder's lifting output terminal. The third drive mechanism 2331 may be disposed on the disassembly tray 253 and capable of driving the third positioning member 231 to extend from below (on the side where the disassembly tray 253 is located) along the second direction Z to abut against the third housing wall 3113, or to retract downward to a retracted position.

[0184] The third drive mechanism 2331 may include a traverse drive mechanism 23312 for driving the third positioning member 231 along the third direction Y. The third positioning member 231 may be disposed on the disassembly tray 253 so as to be movable along the third direction Y relative to the disassembly tray 253. For example, a slide rail extending along the third direction Y is disposed on the disassembly tray 253, and the third positioning member 231 is mounted on the slide rail via a structure such as a slide frame 23313. The third drive mechanism 2331 includes a motor and a screw for driving the third positioning member 231 to slide along the third direction Y. The slide frame 23313 is connected to a screw nut, thereby enabling the screw to rotate and drive the third positioning member 231 to move along the third direction Y on the slide rail, i.e., enabling the third positioning member 231 to move closer to or further away from the battery 3 along the third direction Y. The screw can be a forward and reverse screw, so that the third positioning members 231 located on either side of the battery in the third direction Y can move toward or away from each other as the screw rotates, thereby easily achieving centering and compatibility with batteries of various specifications.

[0185] The third drive mechanism 2331 can include a lifting drive mechanism 23311 that drives the third positioning member 231 along the second direction Z, and a traverse drive mechanism 23312 that drives the third positioning member 231 along the third direction Y. This allows the third positioning member 231 to move between a position abutting the third housing wall and a position away from the third housing wall along both the second direction Z and the third direction Y. This design not only increases the freedom of movement of the third positioning member 231, but also enhances compatibility with battery cells of different specifications, thereby increasing the flexibility of the device.

[0186] The control device (not shown) controls the third driving mechanism 2331 to drive the third positioning member 231 to a position abutting against the third housing wall 3113 or to move away from the position abutting against the third housing wall 3113 .

[0187] 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 mechanism 4 when the cutting mechanism 4 cuts the shell wall.

[0188] 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 can be reduced when the cutting mechanism 4 cuts the shell wall, thereby facilitating the cutting of the shell wall by the cutting mechanism 4.

[0189] In some embodiments, as Figure 2 and Figure 7 As shown, the disassembly device 10 includes 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 provided on the disassembly platform 252. The control device (not shown) controls the tray driving mechanism to drive the disassembly tray 253 to move the third positioning member 231 and the third driving mechanism 2331 along the first direction X, thereby driving the battery to a cutting position or a disassembly position.

[0190] Illustratively, the tray driving mechanism may be provided below the disassembly tray 253 , and a sliding surface may be provided below the disassembly tray 253 . The disassembly tray 253 moves along the first direction X on the sliding surface under the drive of the tray driving mechanism.

[0191] 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.

[0192] In some embodiments, as Figure 8 、 Figure 9 、 Figure 14 and Figure 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.

[0193] 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.

[0194] There may be one or more second suction cups 2321. Multiple second suction cups 2321 can simultaneously adhere to the third housing wall 3113, improving the reliability of the second suction cups' adhesion to the third housing wall 3113. In one specific embodiment, the second suction cup 2321 is a vacuum suction cup. Although not shown, the second suction cup 2321 has an air path that is further connected to the negative pressure device.

[0195] Furthermore, the second suction cup 2321 can absorb the position of the third shell wall 3113 close to the fourth shell wall 3114, which helps the third shell wall 3113 to rotate around the connecting portion 35 more easily to become an outward-turned state.

[0196] 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 the second suction cup 2321 is adsorbed on the third shell wall 3113, it 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.

[0197] In this way, the third shell wall 3113 can be kept away from the electrode assembly 32 , which is convenient for removing the electrode assembly 32 .

[0198] In some embodiments, as Figure 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-turning portion in the third shell wall 3113 to rotate around the connecting portion 35 and become an outward-turning state.

[0199] The first sliding assembly 2322 may include two or three or more sliding blocks that are slidably connected to each other. Figure 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, thereby allowing the bracket 23224 to pitch the second suction cup assembly 232 in a second direction Z.

[0200] The sliding blocks slidably connected to each other can slide under the action of an external force, for example, they can slide along the second direction Z under the action of the tension between the second sliding assembly 2323 and the second suction cup assembly 232. Of course, a driving device can also be provided for the first sliding assembly to drive one or more of the multiple sliding blocks.

[0201] 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 under the drive of the driving device, thereby driving the second positioning and disassembly assembly 23 to move between the abutment position and the disassembly position.

[0202] Illustratively, when 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 driving 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 be used as part of the outward-turning portion 34.

[0203] This structure is simple and can form the outward-turned portion 34 in the third shell wall 3113 into an outward-turned state.

[0204] In some embodiments, as Figure 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) relative to the second sliding block 23222 along the second direction Z driven by the second suction cup assembly 232, and the second sliding block 23222 slides (slides downward) relative to the third sliding block 23223 along the second direction Z driven by the first sliding block 23221.

[0205] 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 being separated 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 being separated from the third sliding block 23223.

[0206] 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 tilts up, the outward-turned portion in the third shell wall 3113 forms an outward-turned state around the connecting portion.

[0207] In some embodiments, as Figure 2 、 Figure 8 and Figure 15 As shown, the disassembly device 10 includes a disassembly platform 252 and a second bracket 255 connected to the disassembly platform 252 , and the second positioning and disassembly assembly 23 and the fourth driving mechanism 2320 are connected to the second bracket 255 .

[0208] In some embodiments, as 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 installation of the second positioning and disassembly assembly 23 and the fourth driving mechanism 2320 on the second bracket 255 .

[0209] 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.

[0210] In some embodiments, as Figure 2 、 Figure 8 and Figure 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 provided 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 so as to abut or leave the third shell wall 3113 respectively.

[0211] Exemplarily, there can 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 opposite sides of the battery 3 along the third direction Y, and two third positioning members 231 are also correspondingly arranged, one of the third positioning members 231 and the second suction cup assembly 232 in the second positioning and disassembly component 23 is 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 is used to abut against the other third shell wall 3113.

[0212] This allows the battery 3 to be better positioned along the third direction Y, and allows the third shell walls 3113 opposite to each other along the third direction Y to rotate along the connecting portion 35 and become an outward-turned state, which is more conducive to the removal of the electrode assembly 32.

[0213] In some embodiments, as Figure 10 and Figure 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, which 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.

[0214] 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 .

[0215] 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 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 abutting against the fourth shell wall 3114.

[0216] Since the control device controls the fifth driving mechanism 241 to drive the fourth positioning member 242 to or away from the abutting position with the fourth housing wall 3114 , the battery 3 can be positioned along the second direction Z by the fourth positioning member 242 .

[0217] In some embodiments, as Figure 10 and Figure 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 .

[0218] 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 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 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 the fourth shell wall 3114, the fourth positioning surface 2421 can be tightly attached to the fourth shell wall 3114.

[0219] Since the fourth positioning surface 2421 is used to abut against the housing wall, the fourth positioning member 242 can position the battery 3 along the second direction Z.

[0220] In some embodiments, as Figure 2 、 Figure 8 and Figure 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 .

[0221] 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, thereby facilitating the placement of the fourth positioning member 242 and the fifth driving mechanism 241 on the second bracket 255 and reducing interference between the fourth positioning member 242 and the fifth driving mechanism 241 and other positioning and disassembly mechanisms. Two fourth positioning members 242 and two fifth driving mechanisms 241 can each be provided, connected to the second bracket 255 in opposite directions along the third direction Y. The two fourth positioning members 242 can jointly abut against the fourth housing wall 3114 of a battery 3, or only one of the fourth positioning members 242 can abut against the fourth housing wall 3114 of a battery 3. The length of the battery 3 in the battery placement position along the third direction Y can be determined.

[0222] In some embodiments, as Figure 8 、 Figure 10 and Figure 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, and 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, and 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 against or move away from the fourth shell wall 3114.

[0223] The positioning transverse sliding assembly 243 and the positioning vertical sliding assembly 244 can be slid by 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. The sliding member is connected to the output end of the cylinder. As the cylinder rod expands and contracts, the sliding member can be driven, thereby driving the positioning vertical sliding assembly 244 to slide along the third direction Y. The positioning vertical sliding assembly 244 includes a support plate, a vertical cylinder mounted on the support plate, and a vertical sliding member. The fourth positioning member 242 is connected to one end of the vertical sliding member. The vertical sliding member is connected to the output end of the vertical cylinder. As the cylinder rod of the vertical cylinder expands and contracts, the vertical sliding member can be driven, thereby driving the fourth positioning member 242 to slide along the second direction Z.

[0224] In this way, the fourth positioning member 242 can move along the third direction Y and the second direction Z, which is beneficial for the fourth positioning member 242 to more effectively position the battery 3 along the second direction Z.

[0225] In some embodiments, as 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 and form a cut portion 33 on the housing 31 .

[0226] Thereby, the cutout portion 33 can be formed in the housing 31 .

[0227] In some embodiments, as Figures 12 to 15 As shown, the tool 42 includes a milling cutter, which includes a milling cutter body 421 and a cutting edge 423 arranged along the circumference of the milling cutter body 421 . The cutting edge 423 is used to cut the housing wall 311 to form the disconnection portion 33 .

[0228] In a specific embodiment, the milling cutter body 421 is a cylinder, and the cutting edge 423 is arranged around the cylinder.

[0229] This makes it easier to cut the housing wall.

[0230] In some embodiments, as 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 0.1 mm to 2 mm.

[0231] 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 .

[0232] 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.

[0233] 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.

[0234] Therefore, when cutting the shell wall, the probability of the cutter 42 cutting the electrode assembly due to accumulation of various errors, thereby causing damage to the electrode assembly 32 and causing fire, is further reduced.

[0235] The smaller the difference between the cutting depth D and the thickness of the shell wall 311, the greater the proportion of the disconnection 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 cause the outward-turned portion of the shell wall to be in an outward-turned state. As a result, the blade 423 can be prevented from cutting the electrode assembly 32 as much as possible, 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 outward-turned portion is more likely to be in an outward-turned state.

[0236] In some embodiments, as Figure 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.

[0237] In some embodiments, as Figure 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, which are connected in sequence. The cutting transverse sliding assembly 411 is connected to the third bracket 256, and the rotating assembly 413 is connected to the cutter 42. 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 are matched. 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, and the cutter head is connected to the cutter 42. The cutter head includes a cutter rotation driving device, such as a motor.

[0238] 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.

[0239] 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 the disconnection portion 33 .

[0240] In some embodiments, as Figure 11 and Figure 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.

[0241] 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.

[0242] In some embodiments, as Figure 2 、 Figure 8 and Figure 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 and disassembly assembly 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 and disassembly assembly 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, thereby driving the battery 3 to a cutting position or a disassembly position.

[0243] In some embodiments, as 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.

[0244] 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 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.

[0245] This can reduce the interference between some positioning and disassembling components and the cutting mechanism 4 as much as possible, which is conducive to the smooth disassembly of the battery 3.

[0246] In some embodiments, as Figure 2 、 Figure 16 and Figure 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.

[0247] In some embodiments, the disassembly tray 253 has a first opening, the first collection container 651 has a first opening 6511, and the second collection container 652 has a second opening 6521. Each opening can be funnel-shaped. 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 facing away from the positioning and disassembly assembly 2 (the lower side of the disassembly tray 253). When the positioning and disassembly assembly 2 disassembles the battery 3 and / or the cutting mechanism 4 cuts the housing wall, the electrolyte flows through the first opening into the first opening 6511 of the first collection container 651 and / or the second opening 6521 of the second collection container 652. The first collection container 651 and / or the second collection container 652 can be movable relative to the disassembly tray 253 so that the openings align with the battery. A collection container with a capacity that matches the amount of electrolyte in the battery can be selected.

[0248] 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 realizing the collection of trace electrolyte; when there is more electrolyte in the battery, the outflowing large amount of electrolyte flows into the second collecting container 652, thereby realizing the collection of conventional electrolyte.

[0249] This enables the collection of trace and regular electrolytes, and the collected electrolytes can be used for subsequent detection and analysis.

[0250] In some embodiments, as Figure 1 and Figure 2 As shown, the disassembly device 10 includes a detection device 63 and a fire extinguishing device 64. The detection device is used to detect whether the battery 3 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.

[0251] 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 may be located on the disassembly tray 253 and / or the second bracket 255, or may be located at other suitable locations. The smoke detection device 632 may be located on the top of the outer cover 66 to detect whether the battery 3 is emitting smoke. If the temperature detection device 631 detects that the battery temperature exceeds a 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 a battery fire, the control device controls the fire extinguishing device to extinguish the fire.

[0252] In this way, the battery cells can be monitored in real time. When an abnormality occurs in the battery cells (for example, a battery cell fire), the control device can control the fire extinguishing device to extinguish the fire, thereby reducing the harm of the battery 3 fire.

[0253] In some embodiments, as Figure 2 、 Figure 18 and Figure 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, and the second box body 642 has an openable and closable gate 6421. The gate 6421 is located above the open mouth 6411. The second box body 642 contains fire extinguishing material. When the detection device 63 detects that the battery 3 is on fire, the control device controls the positioning and disassembly component 2 to move 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.

[0254] 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 and disassembly components. 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 and disassembly assembly 2 to leave the shell wall. 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 fire sand in the second box 642 flows into the first box 641 and buries the battery 3, thereby extinguishing the fire. In 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 in the second direction Z, the second box 642 is located between the first box 641 and the disassembly tray 253. Therefore, after the gate 6421 of the second box 642 is opened, the fire sand can flow into the first box 641 under the action of gravity.

[0255] Therefore, when the battery 3 catches fire, the fire of the battery 3 can be extinguished, reducing the probability of the battery 3 causing damage to the equipment.

[0256] In some embodiments, the disassembling 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.

[0257] 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.

[0258] In some embodiments, as Figure 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.

[0259] 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.

[0260] In some embodiments, as 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 .

[0261] If a battery cell fails and explodes during disassembly, the protective cover can reduce the probability of injury to people outside the equipment.

[0262] Some embodiments of the present application provide a battery disassembly method, such as Figures 20 to 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, and 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 the 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 disassembly 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-turning portion, which is connected to the shell wall other than the outward-turning portion 34 through the connecting portion 35; the positioning and disassembly assembly 2 is used to absorb the outward-turning portion in the first shell wall 3111 and the outward-turning portion in the second shell wall 3112, so that the positioning and disassembly assembly 2 rotates from the abutment position to the disassembly position, while driving the outward-turning portion in the first shell wall 3111 and the outward-turning portion in the second shell wall 3112 to rotate around the connecting portion to become an outward-turning state, and the first direction X, the second direction Z and the third direction Y are perpendicular to each other.

[0263] Specifically, the bottom plates 251 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 respectively abuts against 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 respectively abuts against 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 abuts against 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 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.

[0264] In some embodiments, before using the cutting mechanism 4 to cut the shell wall to form the disconnection portion, it also includes: positioning the battery 3 above the first collection container 651 or the second collection container 652 for collecting the electrolyte, and using the cutting mechanism 4 to cut an electrolyte outflow outlet in the shell wall.

[0265] In some embodiments, the cutting 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.

[0266] In some embodiments, the method further includes: removing the electrode assembly 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; and allowing the positioning and disassembly assembly to release its adsorption on the first shell wall 3111 and the third shell wall 3113.

[0267] In a specific embodiment, see Figure 2 、 Figure 3 and Figure 5The control device controls the second positioning member 222 to be located in 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 position the battery 3 in the first direction X; the control device controls the third positioning member 231 to clamp the battery and position the battery 3 in the third direction Y; the control device controls the fourth positioning member 242 to press down and position the battery 3 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 Figure 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 of abutting the shell wall, and the shell wall falls into the first box.

[0268] 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 waste batteries. It can also reduce the probability of the electrode assembly being scratched and failing by precipitates on the inner wall of the casing or cuts in the casing when the electrode assembly is pulled out.

[0269] 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, allowing the fire extinguishing material to enter the first box 641 and cover the battery in the first box 641 .

[0270] Below, a specific example of an embodiment of the present application is described.

[0271] 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.

[0272] It is equipped with an electrolyte collection device (a first collection container 651 and / or a second collection container 652) for collecting the 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 promptly determine whether the battery has abnormal failure. It can automatically identify the action and throw the battery 3 into the bottom sand box and cover it with sand to extinguish the fire.

[0273] 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 formed into an outward-turned state 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.

[0274] 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 drive 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 transverse drive 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), thereby controlling the clamping torque. 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.

[0275] Partially positioned disassembly components (e.g., first positioned disassembly component 21) are positioned on disassembly tray 253. Disassembly tray 253 is moved along a first direction X to below cutting mechanism 4 via a servo screw assembly at the bottom of disassembly tray 253. Milling cutter body 421 first cuts one or more notches (electrolyte outlets) in housing 31 to allow electrolyte inside housing 31 to drain. A first collection container 651 and a second collection container 652 are positioned below battery 3. The first collection container 651 is smaller than the second collection container 652. The first collection container 651 can be used to collect a small amount of electrolyte discharged from the electrolyte outlet, while the second collection container 652 can be used to collect a large amount of electrolyte. Alternatively, the second collection container 652 can be used to collect a large amount of electrolyte discharged from the electrolyte outlet, while the first collection container 651 can be used to collect a small amount of residual electrolyte. Depending on the electrolyte content inside housing 31, the appropriate collection container is activated for electrolyte collection, facilitating the collection and storage of both trace electrolyte and conventional electrolyte. The collected electrolyte can be used for subsequent testing and analysis.

[0276] 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 top circumference and four side edges.

[0277] The partially positioned disassembled assembly drives the battery 3 back to its initial position. The first suction cup group and the second suction cup group respectively adsorb the shell wall with the first suction cup and the second suction cup, and then 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 follows. Figure 15 As shown, in this state, the internal battery cell can be manually removed, and the vacuum can be broken on the suction cup to remove the remaining shell 31. This allows cutting of the entire top surface of the battery, the four side edges of the side, the bottom of the bottom surface, and other locations. 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, and cylindrical batteries to achieve their cutting and disassembly. Even if the internal battery cell is severely expanded, it can be easily removed. The first and second suction cups can always fit the shell wall during the folding process, which is conducive to the smooth folding of the shell wall. This can minimize the possibility that the electrode assembly 32 is damaged by precipitates on the inner wall of the shell 31 or the cuts of the shell 31 when removing the electrode assembly 32.

[0278] During the entire cutting and folding process, battery 3 presents a risk of failure and fire. The equipment is equipped with multiple infrared thermometers and smoke alarms for real-time monitoring of battery 3 failure. If a battery 3 anomaly is detected, the device automatically dumps the battery into the bottom sandbox (first box 641). The gate of the side sandbox (second box 642) is opened, and the stored firefighting sand is poured into the bottom sandbox to cover battery 3. This buries the failed or ignited battery and extinguishes the fire, reducing the probability of battery 3 fire damaging the disassembly equipment. Real-time monitoring of battery anomalies ensures that any abnormalities, such as overheating and fire, are detected immediately during the disassembly process, automatically triggering the battery sand covering action to extinguish the fire.

[0279] like Figure 7 As shown, the third positioning member 231 is driven by the servo to move the forward and reverse screws to position and clamp the battery 3, 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.

[0280] like Figure 16 and Figure 17As shown, batteries 3 of different sizes and systems have different internal electrolyte contents. Since the electrolyte is volatile, if the collection tank is large, a small amount of electrolyte will completely evaporate in the process of flowing to the bottom of the collection 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.

[0281] like Figure 4 As shown, the first positioning member 211 is connected to the first suction cup. When the cylinder is extended, it is used for positioning and clamping. When the housing 31 needs to be folded outward, the suction cup draws vacuum and the cylinder retracts, simplifying the device module layout. During the folding process, the outward-turning portion 34 of the first housing wall 3111 slides relative to the first positioning member 211. The second suction cup can move up and down (in the second direction Z) within the insertion slot (not shown), ensuring that the first suction cup remains in contact with the outward-turning portion 34 of the first housing wall 3111 during the folding process.

[0282] 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, which simplifies the structural layout of the disassembly equipment.

[0283] 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.

[0284] like Figure 16 and Figure 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.

[0285] 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 protective gas to cool the incision during the cutting process, thereby reducing the probability of sparks generated during the cutting process splashing into the interior of the battery 3 and causing failure and fire.

[0286] like Figure 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.

[0287] like Figure 12 As shown, the milling cutter body 421 has a limiting and anti-overcutting function. 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 shell 31. The purpose is to prevent the blade from cutting through the shell 31 due to the contact between the limiting cylindrical section and the shell 31, thereby reducing the probability of the milling cutter body 421 cutting into the motor assembly under the accumulation of various errors, thereby causing the electrode assembly 32 to be damaged and fail.

[0288] like Figure 18 and Figure 19 As shown, the bottom sandbox (first box 641) is pre-paved with a layer of firefighting sand inside. After the battery 3 fails, it will fall into the bottom sandbox (first box 641). Then the cylinder of the side sand storage box (second box 642) is retracted and the gate is opened, and the firefighting sand stored inside is poured into the bottom sandbox to cover the battery 3.

[0289] like Figure 15 As shown, the angle of the folding portion changes 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 Figure 9 The sliding module can change with the angle of the housing 31 and always fit the folded portion.

[0290] like Figure 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 retracting for avoidance. The fourth positioning member 242 is made of insulating material to avoid short-circuiting the positive and negative poles of the battery.

[0291] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions 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, wherein the battery comprises a housing and an electrode assembly contained in the housing, wherein: include: a cutting mechanism configured to cut the shell to form a cut portion on a housing wall of the shell; The positioning and disassembly assembly is configured to move between an abutting position and a disassembling position. In the abutting position, the positioning and disassembling assembly abuts against the shell wall. 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 positioning and disassembling assembly includes a suction cup assembly, which includes at least one suction cup, and the suction cup assembly is configured to be able to perform a pitching movement with the movement. The control device is configured to control the cutting mechanism to cut the shell wall, and the area partially surrounded by the cut portion forms an outward-turning portion. The outward-turning portion is connected to the shell wall outside the outward-turning portion through a connecting portion, and the outward-turning portion becomes the portion of the shell wall for the positioning and disassembling assembly to abut. The control device controls the positioning and disassembling assembly to move from the abutting position to the disassembling position, while driving the portion of the shell wall adsorbed by the suction cup assembly away from the electrode assembly through the tilting action of the suction cup assembly, so that the outward-turning portion rotates around the connecting portion to become an outward-turning state.

2. The dismantling device according to claim 1, characterized in that: The control device controls the positioning and disassembly assembly to move to the abutment position, and controls the cutting mechanism to cut while keeping the positioning and disassembly assembly in the abutment position, so as to form the 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 adsorbed by the suction cup assembly to rotate around the connecting portion to become an outward-turned state through the upward movement of the suction cup assembly.

3. The dismantling device according to claim 2, characterized in that: The positioning and disassembly assembly includes a first positioning and disassembly assembly for disassembling a first housing wall among the housing walls, wherein the first housing wall intersects with a first direction; The disassembling device includes a first driving mechanism, the first driving mechanism 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.

4. The dismantling device according to claim 3, characterized in that: The first positioning and disassembly component includes: 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 adsorbed on the outward-turned portion in the first shell wall or detached from the outward-turned portion.

5. The dismantling device according to claim 4, characterized in that: The first positioning member is formed as a block-shaped member, and a hole portion is formed in the first positioning member. The first suction cup is accommodated 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 in the first shell wall.

6. The dismantling device according to claim 5, characterized in that: The disassembling device further includes a bottom plate, The first driving mechanism includes 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 disassembly assembly, and the first positioning and disassembly 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 base plate, thereby rotating between the abutment position and the disassembly position. When the first positioning and disassembly assembly is located at the disassembly position, the first suction cup assembly is in an upward position.

7. The dismantling device according to claim 6, characterized in that: The disassembling device further includes a limiting 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.

8. The dismantling device according to claim 7, characterized in that: The limiting surface is formed to be inclined in a direction that the closer it is to the electrode assembly and 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.

9. The dismantling device according to claim 7 or 8, characterized in that: There is an even number of the first positioning and disassembly components, and the even number of the first positioning and disassembly components are relatively arranged on two opposite sides of the battery placement position along the first direction. The first driving mechanism, the bottom plate, and the 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.

10. The dismantling device according to claim 9, 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 disassembly assembly includes a second positioning member for supporting the battery to be disassembled; The disassembly device includes a second driving mechanism connected to the second positioning member and configured to drive the second positioning member to move along a first direction between a position abutting the second shell wall and a position away from the second shell wall, wherein the second direction is perpendicular to the first direction.

11. The dismantling device according to claim 10, 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 base 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. The first positioning and disassembling assembly is rotatably connected to the pivot. Along the second direction, the limiting block is mounted between the first positioning and disassembly assembly and the bottom plate via 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.

12. The dismantling device according to claim 11, 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. The base plate is located on the disassembly tray, and the cutting mechanism is provided on the disassembly platform. The control device controls the tray driving mechanism to drive the disassembly tray to move the base plate along the first direction, thereby driving the battery to a cutting position or a disassembly position.

13. The dismantling device according to any one of claims 2 to 8, characterized in that: The housing wall includes a third housing 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 against the third shell wall; The disassembly 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, with the first direction, the second direction and the third direction being perpendicular to each other.

14. The dismantling device according to claim 13, 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. The cutting mechanism is provided 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, thereby driving the battery to a cutting position or a disassembly position.

15. The dismantling device according to any one of claims 2 to 8, characterized in that: 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 absorb or detach from the third shell wall; The disassembling device includes a fourth driving mechanism connected to the second positioning and disassembling assembly and configured to drive the second positioning and disassembling assembly to move between a position abutting against the third housing wall and a position causing the third housing wall to be turned outward.

16. The dismantling device according to claim 15, characterized in that: 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, and the first sliding assembly includes 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 multiple sliding blocks slide relative to each other along the second direction so that the second suction cup assembly pitches and rotates, and the second suction cup assembly drives the outward-turned part in the third shell wall to rotate around the connecting part and become an outward-turned state.

17. The dismantling device according to claim 16, 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 the 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. Driven by the second suction cup assembly, the first sliding block slides along the second direction relative to the second sliding block, and driven by the first sliding block, the second sliding block slides along the second direction relative to the third sliding block.

18. The dismantling device according to claim 17, characterized in that: There is an even number of the second positioning and disassembly components, and the even number of the second positioning and disassembly components are relatively arranged on two opposite sides of the battery placement position along the third direction. The fourth driving mechanism is provided 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.

19. The dismantling device according to claim 14, 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 connected to the fourth positioning member and 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.

20. The dismantling device according to claim 19, characterized in that: The disassembling device includes a disassembling platform and a second bracket connected to the disassembling platform. The fifth driving mechanism includes 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.

21. The dismantling device according to any one of claims 2 to 8, characterized in that: The cutting mechanism includes a cutting drive mechanism and a cutter. The cutting drive mechanism can drive the cutter to cut the shell to form the cut portion on the shell.

22. The dismantling device according to claim 21, 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.

23. The dismantling device according to claim 22, characterized in that: The milling cutter body includes 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 0.1mm to 2mm.

24. The dismantling device according to claim 21, characterized in that: 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, wherein the first direction, the second direction and the third direction are perpendicular to each other.

25. The dismantling device according to claim 24, characterized in that: The disassembling device includes 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 component 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 and 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 the cutting position or the disassembly position.

26. The dismantling device according to any one of claims 2 to 8, characterized in that: The disassembling device includes an electrolyte collection container, which includes a first collection container and a second collection container. 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.

27. The dismantling device according to any one of claims 2 to 8, characterized in that: The disassembling 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.

28. The dismantling device according to claim 27, characterized in that: The fire extinguishing device includes a first box and a second box. The first box has an open port. The second box has an openable and closable gate located above the open port. The second box contains fire extinguishing material. 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. The control device also 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.

29. A battery disassembly method, applied to a battery disassembly device according to any one of claims 1 to 28, characterized in that: The battery includes a housing, the housing includes housing walls, the housing walls include a first housing wall perpendicular to a first direction, a second housing wall perpendicular to a second direction, and a third housing wall perpendicular to a third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other. The battery disassembly method comprises: Positioning the second housing wall along the second direction, wherein the second housing wall is the bottom wall; positioning the first housing wall along the first direction using the positioning and disassembly assembly; positioning the third housing wall along the third direction using the positioning and disassembly assembly; Cutting the shell wall by a cutting mechanism to form a cut portion, wherein the area partially surrounded by the cut 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 suction cup assembly in the positioning and disassembly assembly is used to absorb the outward-turned portion in the first shell wall and the outward-turned portion in the third shell wall, so that the positioning and disassembly assembly is rotated from the abutment position to the disassembly position, and the outward-turned portion in the first shell wall and the outward-turned portion in the third shell wall absorbed by the suction cup assembly are driven to rotate around the connecting portion through the upward movement of the suction cup assembly to become an outward-turned state, and the first direction, the second direction and the third direction are perpendicular to each other.

30. The battery disassembly method according to claim 29, wherein: Before using a cutting mechanism to cut the housing wall to form the disconnected portion, the method further includes: The battery is positioned 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.

31. The battery disassembly method according to claim 29, wherein: 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.

32. The battery disassembly method according to claim 29, wherein: 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 outer shell; The positioning and disassembly component releases adsorption of the first shell wall and the second shell wall.

33. The battery disassembly method according to any one of claims 29 to 32, characterized in that: The method further comprises: When the battery is detected to be on fire, the battery is dropped 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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