Battery pack disassembly device and battery pack disassembly method

Abstract

This invention relates to the field of battery recycling technology, specifically providing a battery pack dismantling device and method, aiming to solve the problem of low dismantling efficiency in existing battery packs. To this end, the dismantling device of this invention includes: a base on which the battery pack is placed; an edge-opening mechanism that creates a gap between the cold plate and the housing frame; a prying mechanism including a contact that is inserted into the gap, the temperature of which destroys the adhesive at the bottom of the battery cells in contact with it; and a pushing mechanism that pushes the battery pack toward the contact or pushes the contact toward the battery pack. The battery pack dismantling method includes: placing the battery pack on the base; the edge-opening mechanism creating a gap between the cold plate and the housing frame; the contact of the prying mechanism being inserted into the gap; and the prying mechanism cooperating with the pushing mechanism to remove the cold plate from the housing frame. This invention significantly improves the dismantling efficiency and automation level by precisely destroying the adhesive at the bottom of the battery cells between the cell blocks and the housing structure, achieving large-scale, efficient, and low-cost dismantling.

Description

Technical Field

[0001] This invention relates to the field of battery recycling technology, specifically providing a battery pack dismantling device and a battery pack dismantling method. Background Technology

[0002] In recent years, CTP (Cell to Pack) battery packs have seen increasing application and development. CTP technology simplifies the traditional manufacturing process from single cell → module → pack to single cell → pack, eliminating the intermediate module stage. Single cells are fixed to a cold plate with structural adhesive, and the battery pack is pre-tightened by the housing frame. This technology eliminates traditional end plates and bolts, saving parts, improving battery pack volume utilization and manufacturing efficiency, and significantly reducing overall pack weight, thereby increasing energy density and range. However, it also greatly reduces battery maintainability; removing cells from the housing frame during maintenance is extremely difficult, and battery recycling becomes significantly more challenging.

[0003] Current methods for dismantling various power battery systems primarily rely on manual operation, supplemented by dissolving agents or freezing chambers. Manual dismantling is inefficient and difficult, particularly when handling CTP (Continuous Tolerance) power battery systems. As for auxiliary methods, dissolving agents are often based on acetone and other highly toxic and environmentally unfriendly components. Meanwhile, freezing chambers require prolonged freezing processes and necessitate personnel working continuously in environments ranging from 0 to -40°C, resulting in high energy consumption, low dismantling efficiency, and demanding requirements for facilities, equipment, and personnel. The dismantling costs and production capacity are unsuitable for large-scale recycling.

[0004] Accordingly, there is a need in the field for a new battery pack disassembly device and method to solve the above problems. Summary of the Invention

[0005] This invention aims to solve the aforementioned technical problem, namely, the low disassembly efficiency of existing battery packs. To this end, this invention provides a battery pack disassembly device and a battery pack disassembly method. The battery pack disassembly device includes: a cell block composed of a plurality of cells; a cold plate, the bottom of which is connected to the cold plate via adhesive; and a housing frame, which is mounted on the cold plate and houses the cell block within the housing frame.

[0006] The disassembly device includes: a base on which the battery pack is placed; a lifting mechanism for creating a gap between the cold plate and the housing frame; a prying mechanism including a contact that is inserted into the gap, the temperature of which will damage the adhesive on the bottom of the battery cell in contact with it; and a pushing mechanism for pushing the battery pack toward the contact or the contact toward the battery pack.

[0007] In the specific embodiment of the battery pack disassembly device described above, a temperature control device is provided on the contact, which is used to adjust the temperature of the contact.

[0008] In the specific embodiment of the battery pack disassembly device described above, the skid mechanism further includes a lifting platform, with contacts mounted on the lifting platform. The lifting platform raises and lowers, which in turn drives the contacts to rise and fall.

[0009] In the specific embodiment of the battery pack disassembly device described above, the prying mechanism further includes grippers for gripping the area of ​​the cold plate that has been separated from the housing frame.

[0010] In the specific embodiment of the battery pack disassembly device described above, the gripper is connected to the pulling device, and the pulling device drives the gripper to pull the cold plate.

[0011] In the specific embodiment of the battery pack disassembly device described above, the base also includes a rotating mechanism, which, after rotating, is used to align the side of the battery pack with the better edge setting effect with the contact.

[0012] In the specific embodiment of the battery pack disassembly device described above, the skid mechanism also includes a connecting rod, one end of which is connected to a contact. The contact is rotatably mounted on the lifting platform. After the connecting rod swings, it drives the contact to swing. After the contact swings, it lifts the cold plate and destroys the adhesive at the bottom of the battery cell between the cold plate and the housing frame.

[0013] In the specific embodiment of the battery pack disassembly device described above, the edge lifting mechanism includes an edge lifting pry plate, which is used to pry up the edge of the cold plate to separate it from the housing frame.

[0014] In the specific embodiment of the battery pack disassembly device described above, the edge-removing mechanism further includes a separator, which is used to break the connection structure between the housing frame and the cold plate.

[0015] A battery pack disassembly method, using the aforementioned battery pack disassembly device, includes: placing the battery pack on a base; a lifting mechanism creating a gap between the cold plate and the housing frame; inserting the contacts of a prying mechanism into the gap; and cooperating with a pushing mechanism to remove the cold plate from the housing frame.

[0016] In the specific implementation of the above-mentioned battery pack disassembly method, "the contact of the skid mechanism is inserted into the gap, and the skid mechanism cooperates with the pushing mechanism to remove the cold plate from the housing frame" is further described as follows: the temperature control device adjusts the temperature of the contact, and the contact is inserted into the gap; the connecting rod of the skid mechanism drives the contact to swing, and at the same time the pushing mechanism pushes the battery pack toward the contact; the gripper of the skid mechanism clamps the separated cold plate and pulls the cold plate until the cold plate is peeled off.

[0017] Solution 1. A battery pack disassembly device, the battery pack comprising: a cell block, the cell block being composed of a plurality of cells; a cold plate, the bottom of the cell block being connected to the cold plate via cell bottom adhesive; a housing frame, the housing frame being disposed on the cold plate, the cell block being housed within the housing frame; characterized in that the disassembly device comprises:

[0018] The system includes: a base on which the battery pack is placed; an edge-opening mechanism for creating a gap between the cold plate and the housing frame; a prying mechanism including a contact that is inserted into the gap, the temperature of which destroys the adhesive on the bottom of the battery cell; and a pushing mechanism for pushing the battery pack toward the contact or the contact toward the battery pack.

[0019] Solution 2. The battery pack disassembly device according to Solution 1, characterized in that a temperature control device is provided on the contact, and the temperature control device is used to adjust the temperature of the contact.

[0020] Option 3. The battery pack disassembly device according to Option 1, characterized in that the skid mechanism further includes a lifting platform, the contact is disposed on the lifting platform, and the lifting platform drives the contact to rise and fall after it rises and falls.

[0021] Solution 4. The battery pack disassembly device according to Solution 1, characterized in that the prying mechanism further includes a gripper, the gripper being used to clamp the area of ​​the cold plate that has been separated from the housing frame.

[0022] Option 5. The battery pack disassembly device according to Option 4, characterized in that the gripper is connected to a pulling device, and the pulling device drives the gripper to pull the cold plate.

[0023] Solution 6. The battery pack disassembly device according to Solution 1, characterized in that the base further includes a rotating mechanism, which, after rotation, is used to align the side of the battery pack with the better edge raising effect with the contact.

[0024] Solution 7. The battery pack disassembly device according to Solution 3, characterized in that,

[0025] The skid mechanism also includes a connecting rod, one end of which is connected to the contact. The contact is rotatably mounted on the lifting platform. After the connecting rod swings, it drives the contact to swing. After the contact swings, it lifts the cold plate and breaks the adhesive at the bottom of the battery cell between the cold plate and the housing frame.

[0026] Solution 8. The battery pack disassembly device according to Solution 1, characterized in that the edge lifting mechanism includes an edge lifting pry plate, which is used to pry up the edge of the cold plate to separate it from the housing frame.

[0027] Solution 9. The battery pack disassembly device according to Solution 8, characterized in that the edge-lifting mechanism further includes a separator, the separator being used to break the connection structure between the housing frame and the cold plate.

[0028] Solution 10. A method for disassembling a battery pack, characterized in that the method employs a battery pack disassembly device as described in any one of claims 1-9, and the method includes:

[0029] Place the battery pack on the base;

[0030] The edge-forming mechanism creates a gap between the cold plate and the box frame;

[0031] The contacts of the skid mechanism are inserted into the gap, and the skid mechanism cooperates with the propulsion mechanism to remove the cold plate from the box frame.

[0032] Solution 11. The battery pack disassembly method according to Solution 10, characterized in that, "the contact of the prying mechanism is inserted into the gap, and the prying mechanism cooperates with the pushing mechanism to remove the cold plate from the housing frame" is further defined as follows:

[0033] The temperature control device adjusts the temperature of the contact, and the contact is inserted into the gap;

[0034] The lever mechanism's connecting rod drives the contact to swing, while the propulsion mechanism pushes the battery pack toward the contact. The lever mechanism's grippers clamp the separated cold plate and pull the cold plate until it is peeled off.

[0035] With the above technical solution, the application area of ​​temperature assistance in this invention is limited to the contacts in the skid mechanism, or even just the part of the contacts that comes into contact with the structural adhesive. Only a small amount of energy is needed to break the structural adhesive, and the temperature adjustment range can be expanded to a wider range for faster destruction of the structural adhesive. Through the cooperation of the edge-lifting mechanism, the skid mechanism, and the propulsion mechanism, highly toxic and energy-intensive auxiliary methods are avoided. By precisely breaking the adhesive at the bottom of the battery cell between the battery cell block and the casing structure, the disassembly efficiency and automation level are greatly improved. This overcomes the difficulties and low efficiency of manual disassembly, achieving large-scale, efficient, and low-cost disassembly. Attached Figure Description

[0036] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0037] Figure 1 This is a schematic diagram of the structure of a battery pack, which is the object of this invention.

[0038] Figure 2 This is a front view of the overall structure of the battery pack disassembly device of the present invention;

[0039] Figure 3 This is a top view of the overall structure of the battery pack disassembly device of the present invention;

[0040] Figure 4 This is a left view of the overall structure of the battery pack disassembly device of the present invention;

[0041] Figure 5 This is a right view of the overall structure of the battery pack disassembly device of the present invention;

[0042] Figure 6 This is a schematic diagram of the working state of the edge-raising skid plate in the edge-raising mechanism of the present invention, and the corresponding state is the initial edge-raising state.

[0043] Figure 7 This is a schematic diagram of the working state of the edge-raising skid plate in the edge-raising mechanism of the present invention, and the corresponding state is the edge-raising completed state.

[0044] Figure 8 This is a schematic diagram of the working of the contact in the edge-lifting mechanism of the present invention, and the corresponding state is the initial state of cold plate disassembly.

[0045] Figure 9 This is a schematic diagram of the working of the contact in the edge-lifting mechanism of the present invention, and the corresponding state is the intermediate state of cold plate disassembly.

[0046] Figure 10 This is a schematic diagram of the operation of the contact in the edge-removing mechanism of the present invention, and the corresponding state is the cold plate dismantling room state;

[0047] Figure 11 This is a flowchart of the core steps of the disassembly method of the present invention.

[0048] In the diagram: 1. Battery cell block, 2. Cold plate, 3. Glue at the bottom of the battery cell, 4. Housing frame, 5. Base, 6. Edge lifting mechanism, 7. Gap, 8. Skid plate mechanism, 9. Contact, 10. Pushing mechanism, 11. Lifting platform, 12. Gripper, 13. Connecting rod, 14. Separator, 15. Edge lifting skid plate, 16. Side overflow glue. Detailed Implementation

[0049] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0050] It should be noted that in the description of this invention, terms such as "upper," "lower," "left," "right," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the relevant devices or elements must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, ordinal numbers such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] Furthermore, in order to more clearly demonstrate the core technical solution of the present invention, the description of known structures such as grippers is omitted in the following description. However, this omission is only for the convenience of description and does not mean that grippers and the like can be without these structures.

[0053] like Figures 1-5 As shown, this invention proposes a battery pack disassembly device, such as... Figure 1 As shown, the battery pack includes: a cell block 1 composed of several cells; the bottom of the cell block 1 is connected to the cold plate 2 by cell bottom adhesive 3; the housing frame 4 is set on the cold plate 2, and the cell block 1 is housed in the housing frame 4. No adhesive is used between the housing frame 4 and the cold plate 2. Generally, it can be connected by one or more of the following methods: welding, riveting, FDS, bonding, tenon and mortise and tenon joints, and bolt fixing; there is a small amount of side adhesive 16 between the cell block 1 and the housing frame 4. To disassemble the battery pack, it is necessary to consider how to deal with the structural adhesive, namely the cell bottom adhesive 3 and the side adhesive 16.

[0054] The structural adhesive is a single type or a mixture of two or more types of epoxy resin adhesive, polyurethane adhesive, acrylic adhesive, aldehyde resin adhesive, hot melt adhesive, or other adhesive. The material of the cold-rolled sheet 2 can be any one of aluminum alloy, stainless steel, composite materials, or non-metallic materials, or other materials; the forming process of the cold-rolled sheet 2 can be any one of extrusion profile, casting, stamping brazing, sheet metal bending, blow forming, or other forming processes.

[0055] like Figures 2-5As shown in this embodiment, in order to solve the problem that the adhesive 3 at the bottom of the battery cell is difficult to destroy, the disassembly device includes: a base 5, on which the battery pack is placed; the base 5 can be provided with fixing holes for cooperating with the battery pack lifting holes to fix the battery pack, or other fixing methods can be used for fixing; before fixing the battery pack, it is necessary to confirm that the battery pack cold plate 2 is placed facing upwards.

[0056] The edge-lifting mechanism 6 is used to break the connection surface between the cold plate 2 and the housing frame 4, and then lift the edge of the cold plate 2 along its edge, separating the edge of the cold plate 2 from the housing frame 4 to form a gap 7. The gap 7 exposes the bottom adhesive 3 of the battery cell. The size of the gap 7 is large enough to accommodate the insertion of the contact 9. Several edge-lifting mechanisms 6 can be set according to actual needs. The prying mechanism 8 includes a contact 9, which is inserted into the gap 7. The temperature of the contact 9 will destroy the bottom adhesive 3 of the battery cell it contacts. The contact 9 can be of any shape, as long as it can destroy the bottom adhesive 3 of the battery cell. During the operation of the contact 9, if a single contact 9 has difficulty prying the cold plate 2, the position of the single contact 9 in the Y direction can be adjusted to find a suitable prying point, or several contacts 9 can be set up to pry together, or the contact 9 of a suitable shape can be replaced according to actual needs.

[0057] The pushing mechanism 10 is used to push the battery pack toward the contact 9 or the contact 9 toward the battery pack, providing shearing force to break the adhesive 3 at the bottom of the cell, assisting in the separation of the cold plate 2 until the cold plate 2 is completely removed. Figure 2 As shown, the pushing mechanism 10 is mounted on the base 5, located below the battery pack. The pushing mechanism 10 pushes the battery pack towards the contact 9, causing the contact 9 to continuously break down the adhesive 3 at the bottom of the contacted battery cells. Any remaining small amount of excess adhesive 16 on the side can be removed by cutting or other methods. The pushing mechanism 10 can be in the form of a pushing guide rail, using a hydraulic device or a motor as the power source for movement. The pushing mechanism 10 can also be located in other positions, such as on the side of the battery pack away from the contact 9, as long as it can push the battery pack towards the contact 9.

[0058] Previous techniques for breaking down structural adhesives through temperature regulation primarily targeted the environment, battery pack housing, or individual battery cells. This method is time-consuming, energy-intensive, and inefficient. Furthermore, to prevent individual battery cells from failing, the temperature needs to be controlled within a narrow range, such as -40°C to 60°C. Within this temperature range, the strength of the structural adhesive does not change significantly. Therefore, this method does little to reduce disassembly difficulty and is limited by space constraints and operational requirements, making large-scale battery pack recycling difficult.

[0059] In the disassembly device used in this invention, the application area of ​​temperature assistance is limited to the contact 9 in the skid mechanism 8, or even just to the part of the front end of the contact 9 that contacts the structural adhesive. Only a small amount of energy is required to break the structural adhesive, and the temperature adjustment range can be expanded to a wider temperature range. After adjusting the temperature of the contact 9, the adhesive 3 at the bottom of the battery cell that the contact 9 contacts can quickly reach a temperature range that causes a significant change in the strength of the structural adhesive, which is beneficial for the next disassembly step. At the same time, due to the reduced action time, the entire battery cell connected to the structural adhesive can be prevented from reaching the runaway temperature threshold, thus ensuring the safety of the battery cell and eliminating the risk of failure.

[0060] This invention avoids the use of highly toxic and energy-intensive auxiliary methods by coordinating the edge-lifting mechanism 6, the prying plate mechanism 8, and the pushing mechanism 10; by precisely destroying the bottom adhesive 3 of the battery cell between the battery cell block 1 and the housing structure 4, it greatly improves the disassembly efficiency and automation level, overcomes the problems of difficult disassembly and low disassembly efficiency in manual disassembly, and realizes large-scale, efficient, and low-cost disassembly.

[0061] Furthermore, a temperature control device (not shown in the figure) is provided on the contact 9. The temperature control device is used to adjust the temperature of the contact 9, or only adjust the temperature of the part of the contact 9 that is in contact with the structural adhesive. The temperature control device can achieve freezing or heating, and the temperature range can be from -50℃ to 120℃. Freezing can be achieved by circulating the cooling medium through an external cooling device and an internal cooling channel. The cooling medium can be water, oil, ethylene glycol solution, or a mixture thereof. Heating can be achieved by one or both of the following: an internal resistance heating wire and a PTC heating element.

[0062] Furthermore, such as Figure 1 As shown, in order to disassemble battery packs of different heights, the skid mechanism 8 also includes a lifting platform 11. The contact 9 is set on the lifting platform 11. After the lifting platform 11 moves up and down in the Z direction, it drives the contact 9 to move up and down, thereby adjusting the height of the contact 9. The height range that the lifting platform 11 can move in the Z direction is from -50mm to A1mm, where A1 is the highest height of the battery pack in the Z direction. The power source for the lifting platform 11 to move in the Z direction can be achieved by one or more of the following methods: manual wheel axle, motor and hydraulic cylinder.

[0063] Furthermore, such as Figures 8-9 As shown, the prying mechanism 8 also includes a gripper 12, which is used to clamp the area of ​​the cold plate 2 that has been separated from the housing frame 4, preventing the separated cold plate 2 from obstructing the separation of the contacts 9. In addition to clamping, the gripper 12 is connected to a pulling device. After the gripper 12 clamps the cold plate 2, the pulling device drives the gripper 12 to pull and drag the cold plate 2, assisting the contacts 9 in separating from the cold plate 2. The pulling device can be a cable puller or other equipment, such as... Figure 8As shown. The drag force of the gripper 12 can be 0 to 30,000 N. The clamping force applied by the gripper 12 to the cold plate 2 can be 0 to 30,000 N. Depending on the angle formed between the part of the cold plate 2 that is clamped and the part of the cold plate 2 that has not been separated, the gripper 12 can move in the X and Z directions. The stretching in the Z direction will apply a pulling force to the bottom adhesive 3 of the cell in the unseparated area through the cold plate 2. The stretching in the X direction will apply a shearing force to the bottom adhesive 3 of the cell in the unseparated area through the cold plate 2.

[0064] Furthermore, the base 5 also includes a rotating mechanism. After the battery pack is placed on the base 5, the edge-lifting mechanism 6 can lift several edges of the battery pack. If the edge-lifting effect is good on the side of the battery pack closest to the contact 9, this side can be used directly for the next disassembly step. If the edge-lifting effect is poor on the side of the battery pack closest to the contact 9, the rotating mechanism can be used to rotate the battery pack, aligning the side with the good edge-lifting effect with the contact 9, and then proceeding to the next disassembly step. The rotating mechanism can be located above or below the battery pack. The rotating mechanism can allow the battery pack to rotate horizontally around the center from 0° to 360°, and maintain the rotation angle unchanged in subsequent processes. The rotating mechanism can be of any form; it can be used by a rotating robotic arm to grasp and rotate the battery pack, or it can be located on one side of the battery pack to push it to rotate, as long as it can drive the battery pack to rotate.

[0065] Furthermore, to improve the efficiency of contact 9 in damaging the adhesive 3 at the bottom of the battery cell, contact 9 can swing to a certain extent. Therefore, the prying mechanism 8 also includes a connecting rod 13, one end of which is connected to contact 9. Contact 9 is rotatably mounted on the lifting platform 11. After the connecting rod 13 swings, it drives contact 9 to swing. Contact 9 swings while damaging the adhesive 3 at the bottom of the battery cell in contact with it, lifting the cold plate 2 that was originally bonded to the housing frame 4. Contact 9 and connecting rod 13 work together to achieve a lifting force of 0 to 3T through the lever principle. With the cooperation of the pushing mechanism 10, the adhesive 3 at the bottom of the battery cell will experience pulling, shearing and other forms of force, making it easier to be damaged. To avoid damaging the battery cell, it is recommended that the contact 9's Z-axis angle of movement be between -20° and 60°. Connecting rod 13 is connected to the power system, and the power system drives connecting rod 13 to swing.

[0066] Furthermore, such as Figures 6-7 As shown, the edge-lifting mechanism 6 includes an edge-lifting pry plate 15. The edge-lifting pry plate 15 lifts the area of ​​the cold plate 2 that is not glued to the housing frame 4, separating it from the housing frame 4. The edge-lifting pry plate 15 can be plate-shaped. After one end of the plate is inserted between the cold plate 2 and the housing frame 4, the pry plate 15 moves upward, lifting the cold plate 2. A lifting plate can be installed on the base 5 at a position corresponding to the electrical area of ​​the battery pack to cooperate with the edge-lifting mechanism 6.

[0067] The edge-lifting mechanism 6 also includes a separator 14, which is used to break the connection structure between the housing frame 4 and the cold plate 2. The separator 14 can break the connection surface by cutting or other means. If the connection between the cold plate 2 and the housing frame 4 is a easily detachable bolt connection, it can also be manually disassembled. Preferably, the working area of ​​the edge-lifting mechanism 6 can start from the battery pack electrical area for disassembly. The edge-lifting mechanism 6 can be mounted on a robotic arm and controlled by a controller; the separator 14 and the edge-lifting pry bar 15 can be mounted on the same control arm or on different control arms.

[0068] One disassembly method uses the aforementioned battery pack disassembly device, such as... Figure 11 As shown, the disassembly method includes: placing the battery pack on the base 5; the edge-lifting mechanism 6 creating a gap 7 between the cold plate 2 and the housing frame 4; the contact 9 of the prying mechanism 8 being inserted into the gap 7; and the prying mechanism 8 cooperating with the pushing mechanism 10 to remove the cold plate 2 from the housing frame 4.

[0069] The disassembly method is further specified as follows: the battery pack is placed on the base 5; the separation machine 14 or manually breaks the connection structure between the box frame 4 and the cold plate 2; the edge-lifting pry plate 15 lifts the area of ​​the cold plate 2 that is not glued to the box frame 4, forming a gap 7; the rotating mechanism aligns the side with the better edge-lifting effect with the contact 9; the lifting platform 11 is moved to a suitable position, and the contact 9 is adjusted to a suitable angle; the temperature control device works to adjust the temperature of the contact 9 to a suitable temperature; the contact 9 is inserted into the gap 7, and the contact 9, the connecting rod 13 and the cold plate 2 after edge lifting form a lever. The power system drives the connecting rod 13 and the contact 9 to swing, lifting the cold plate 2 and continuously destroying the glue 3 at the bottom of the cell. At the same time, the pushing mechanism 10 pushes the battery pack toward the contact 9, and the gripper 12 clamps the separated cold plate 2 and stretches it in the X or Z direction until the cold plate 2 is peeled off. The small amount of excess adhesive 16 on the sides of the battery cell block 1 between it and the housing frame 4 can be removed by cutting or other methods, ensuring that there is no structural adhesive between the battery cell and any component or structural area within the housing frame 4. After removing the cold plate 2 and structural adhesive from the housing frame 4, the battery cell block 1 is removed for subsequent battery cell separation processing to obtain recyclable battery cells. The order and steps of disassembly are not absolute. For example, the contact 9 can be inserted into the gap 7 first, and then the temperature of the contact 9 can be adjusted. Adjustments can be made according to the actual situation without deviating from the principles and scope of this invention.

[0070] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A battery pack disassembling device, the battery pack comprising: a cell block (1) composed of a plurality of cells; a cold plate (2) connected with the cell block (1) through cell bottom glue (3) at the bottom of the cell block (1); a box frame (4) arranged on the cold plate (2), and the cell block (1) is contained in the box frame (4); characterized in that the disassembling device comprises: a base (5) on which the battery pack is placed; an edge lifting mechanism (6) for lifting a gap (7) between the cold plate (2) and the box frame (4); a cold plate prying mechanism (8) comprising a contact head (9) inserted into the gap (7), the temperature of the contact head (9) can damage the cell bottom glue (3) in contact with it; a pushing mechanism (10) for pushing the battery pack to the contact head (9) or pushing the contact head (9) to the battery pack.

2. The battery pack disassembly device of claim 1, wherein, A temperature control device is arranged on the contact head (9) for adjusting the temperature of the contact head (9).

3. The battery pack disassembly device of claim 1, wherein, The cold plate prying mechanism (8) further comprises a lifting platform (11), and the contact head (9) is arranged on the lifting platform (11), and the lifting platform (11) drives the contact head (9) to lift after lifting.

4. The battery pack disassembly device of claim 1, wherein, The cold plate prying mechanism (8) further comprises a clamping jaw (12) for clamping the area of the cold plate (2) which has been separated from the box frame (4).

5. The battery pack disassembly device of claim 4, wherein, The clamping jaw (12) is connected with a pulling device, and the pulling device drives the clamping jaw (12) to pull the cold plate (2).

6. The battery pack disassembly device of claim 1, wherein, The base (5) further comprises a rotating mechanism, which is used to align the side of the battery pack with good edge lifting effect to the contact head (9) after rotating. 7.The battery pack disassembling device according to claim 3, characterized in that: The cold plate prying mechanism (8) further comprises a connecting rod (13), one end of the connecting rod (13) is connected with the contact head (9), the contact head (9) is rotatably arranged on the lifting platform (11), the connecting rod (13) drives the contact head (9) to swing after swinging, and the contact head (9) lifts the cold plate (2) after swinging, thereby damaging the cell bottom glue (3) between the cold plate (2) and the box frame (4). 8.The battery pack disassembling device according to claim 1, characterized in that: The edge lifting mechanism (6) comprises an edge lifting pry (15) for prying the edge of the cold plate (2) to separate it from the box frame (4). 9.The battery pack disassembling device according to claim 8, characterized in that: The edge lifting mechanism (6) further comprises a separating machine (14) for damaging the connecting structure between the box frame (4) and the cold plate (2).

10. A battery pack disassembly method, characterized by, The battery pack disassembling method adopts the battery pack disassembling device according to any one of claims 1-9, and the battery pack disassembling method comprises: placing the battery pack on the base (5); The edge-lifting mechanism (6) lifts a gap (7) between the cold plate (2) and the box frame (4); The contact (9) of the pry plate mechanism (8) is inserted into the gap (7), and the pry plate mechanism (8) cooperates with the pushing mechanism (10) to detach the cold plate (2) from the box frame (4).

11. The battery pack disassembly method of claim 10, wherein, The "the contact (9) of the pry plate mechanism (8) is inserted into the gap (7), and the pry plate mechanism (8) cooperates with the pushing mechanism (10) to detach the cold plate (2) from the box frame (4)" is further: A temperature control device adjusts the temperature of the contact (9) inserted into the gap (7); The connecting rod (13) of the pry plate mechanism (8) swings the contact (9), while the pushing mechanism (10) pushes the battery pack towards the contact (9), the clamping jaw (12) of the pry plate mechanism (8) clamps the separated cold plate (2), and pulls the cold plate (2) until the cold plate (2) is stripped.

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