Battery pack dispergation method, dispergation system and dispergation auxiliary device

Abstract

The embodiment of the invention provides a battery pack peptizing method, a peptizing system and a peptizing auxiliary device, and relates to the technical field of batteries, the battery pack peptizing method comprises the following steps: placing a liquid adsorption part at the top of a battery cell of a to-be-peptized coating body; a peptizing solvent is added into the tray of the to-be-peptized inclusion and / or the liquid adsorption part, and the peptizing solvent soaks the liquid adsorption part; wherein the peptizing solvent adsorbed on the liquid adsorption part can permeate a gap between the adjacent battery cells so as to be in contact with the structural adhesive; and after the to-be-peptized inclusion is placed at the preset temperature for the preset time, the structural adhesive loses efficacy, and the peptized inclusion is obtained, so that the peptizing difficulty of the battery pack is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and in particular, to a method for debonding a battery pack, a debonding system, and a debonding auxiliary device. Background Art

[0002] The integrated body battery pack needs to withstand a certain torsional stiffness. Therefore, structural adhesive is usually used to connect the internal battery cells and the tray to ensure the stability of the connection.

[0003] Although the structural adhesive can make the connection between the battery cells and the tray stable and reliable, after the battery pack is scrapped, the structural adhesive will make it difficult to separate the battery cells from the tray, making the disassembly and recycling of the battery pack difficult. Summary of the Invention

[0004] Embodiments of the present application provide a method for debonding a battery pack, a debonding system, and a debonding auxiliary device to reduce the difficulty of disassembling and recycling the battery pack.

[0005] In a first aspect, embodiments of the present application provide a method for debonding a battery pack, including:

[0006] Placing a liquid absorbent on the top of the battery cells of the package to be debonded;

[0007] Injecting a debonding solvent into the tray of the package to be debonded and / or onto the liquid absorbent, and wetting the liquid absorbent with the debonding solvent; wherein, the debonding solvent adsorbed on the liquid absorbent can penetrate into the gaps between adjacent battery cells to contact the structural adhesive;

[0008] After placing the package to be debonded at a preset temperature for a preset time, making the structural adhesive ineffective to obtain a debonded package, where the debonded package includes the battery cells, the tray, and the ineffective structural adhesive.

[0009] In a possible implementation, when the liquid absorbent is placed on the battery cells, the projection of the battery cells in the vertical direction is located within the liquid absorbent.

[0010] In a possible implementation, the injecting of the debonding solvent includes:

[0011] Injecting the debonding solvent onto the liquid absorbent so that the entire liquid absorbent is adsorbed with the debonding solvent;

[0012] Injecting the debonding solvent into the gap between the side wall of the tray and the battery cells so that the deposition height of the debonding solvent on the upper surface of the structural adhesive is 5 mm - 10 mm.

[0013] In a possible implementation, the preset temperature is 0 - 40 °C.

[0014] In a possible implementation, it further includes:

[0015] Separate the liquid absorbent from the battery cell of the debinding package, and use the separated liquid absorbent to place it on another debinding package to be processed.

[0016] In a possible implementation, the liquid absorbent is a felt, wool felt, fiber cotton pad or sponge pad.

[0017] In a possible implementation, the debinding solvent is N-methylpyrrolidone, γ-butyrolactone or butyl cellosolve.

[0018] In a second aspect, an embodiment of the present application provides a debinding system, which is applied to the battery pack debinding method described in any one of the first aspects, and includes:

[0019] A placement station, where a debinding auxiliary device is provided at the placement station, and the debinding auxiliary device is used to move the liquid absorbent to place the liquid absorbent on the battery cell of the debinding package to be processed;

[0020] A solvent filling station, where a liquid injection device is provided at the solvent filling station, and the liquid injection device is used to fill the debinding solvent into the tray of the debinding package to be processed and / or on the liquid absorbent;

[0021] A first transportation device, which is used to transport the debinding package covered with the liquid absorbent to the solvent filling station.

[0022] By setting the placement station, the solvent filling station and the first transportation device, the battery pack to be debound can be continuously debound, and it is applicable to debinding a large number of battery packs.

[0023] In a possible implementation, it further includes a high-temperature standing station, and the temperature of the high-temperature standing station is maintained at a preset temperature, so that after the debinding package to be processed stands at the high-temperature standing station for a preset time, a debound package is obtained;

[0024] Among them, the first transportation device is also used to transport the debinding package to be processed from the solvent filling station to the high-temperature standing station.

[0025] In a possible implementation, it further includes a separation station, and the debinding auxiliary device is also provided at the separation station, and the debinding auxiliary device is further used to clamp and move the liquid absorbent on the battery cell to separate the liquid absorbent from the battery cell;

[0026] Among them, the first transportation device is also used to transport the debound package to the separation station.

[0027] In a possible implementation manner, a second transport device is further included, and the second transport device is used to transport the liquid adsorbent separated by the separation station to the placement station, so as to recycle the liquid adsorbent.

[0028] In a third aspect, an embodiment of the present application provides a disassembly auxiliary device, comprising:

[0029] A positioning tool, the positioning tool is used to connect with the liquid adsorbent;

[0030] The grabbing tool is used to grab the positioning tool and drive the positioning tool to move so that the liquid adsorbent covers the battery core or is separated from the battery core.

[0031] The liquid adsorbent is fixed by the positioning tool, which makes it easier for the grasping tool to grasp the flexible liquid adsorbent, thereby helping to reduce the difficulty of debonding.

[0032] In a possible implementation, the positioning tool includes:

[0033] A connecting frame, on which a plurality of fixing components are arranged, and the plurality of fixing components are respectively connected to different parts of the liquid adsorbent, so that the shape of the liquid adsorbent remains stable;

[0034] A positioning plate, the positioning plate being connected to a side of the connecting frame away from the liquid adsorbent;

[0035] Wherein, the grabbing tool is used to grab the positioning plate and drive the positioning plate to move.

[0036] In a possible implementation manner, the connecting frame is provided with supporting members extending outside the liquid adsorbent on two opposite sides;

[0037] Among them, when at least two of the liquid adsorbents are stacked, the positioning tooling is connected to the liquid adsorbents one by one, and among the two adjacent connecting frames, the bottom of the connecting frame on the upper one contacts with the supporting member on the other, so that there is a gap between the adjacent liquid adsorbents.

[0038] In a possible embodiment, a limiting groove is provided on the supporting member, and a limiting portion is also provided on the connecting frame. When at least two of the liquid adsorbents are stacked, the limiting portion of the upper one of the two adjacent connecting frames is inserted into the limiting groove on the other one.

[0039] In a possible implementation manner, the limiting groove is closed at one end away from the positioning plate, and the top of the limiting groove and the end of the limiting groove adjacent to the positioning plate are both open.

[0040] In a possible implementation, the fixing component includes:

[0041] A first fixing plate, which is connected to the connecting frame;

[0042] A second fixing plate, on which a connecting post is provided. The second fixing plate is used to abut against the side of the liquid absorber away from the connecting frame, and the connecting post is used to pass through the liquid absorber and connect to the first fixing plate;

[0043] A third fixing plate, which is arranged opposite to the second fixing plate. The third fixing plate is used to cooperate with the second fixing plate to clamp the liquid absorber from opposite sides of the liquid absorber respectively. The third fixing plate is sleeved on the connecting post and is slidably connected to the connecting post;

[0044] An elastic member, which is sleeved on the connecting post and is located between the third fixing plate and the first fixing plate. The elastic member is used to drive the third fixing plate to press the liquid absorber against the second fixing plate.

[0045] In a possible implementation, the connecting post includes a cylindrical section and a frustum section that are connected to each other. One end of the cylindrical section away from the frustum section is connected to the second fixing plate, and the outer diameter of the frustum section gradually decreases along the direction from the second fixing plate to the third fixing plate.

[0046] In a possible implementation, the fixing component further includes:

[0047] A limiting member, on which a first connection hole is provided;

[0048] A first bolt, which passes through the first connection hole and is screwed to the first fixing plate to press the limiting member against the first fixing plate;

[0049] Wherein, one end of the connecting post away from the second fixing plate penetrates through the first fixing plate and extends to the side of the first fixing plate away from the third fixing plate. A clamping groove is provided at one end of the connecting post away from the second fixing plate, and a clamping portion is provided on the limiting member that cooperates with the clamping groove to limit the relative position between the connecting post and the first fixing plate when the clamping portion is inserted into the clamping groove.

[0050] In a possible implementation, the grasping tooling includes:

[0051] A handling device;

[0052] A frame, which is connected to the handling device;

[0053] At least one first clamping component, which is arranged on the rack and is used for clamping the positioning plate;

[0054] Wherein, the handling device is used to drive the rack to move, so that the first clamping component places the liquid suction attachment on the battery cell, or separates the liquid suction attachment from the battery cell.

[0055] In a possible implementation manner, the grasping tooling further includes:

[0056] A ranging sensor, which is arranged on the rack and is used to obtain the straight-line distance between the positioning plate or the liquid suction attachment and the first clamping component;

[0057] A controller, which is communicatively connected to the handling device, the first clamping component and the ranging sensor, and is used to control the handling device to drive the first clamping component to move according to the straight-line distance between the positioning plate or the liquid suction attachment and the grasping tooling, so as to clamp the positioning tooling.

[0058] In a possible implementation manner, the grasping tooling further includes a diffuse reflection sensor communicatively connected to the controller, and the diffuse reflection sensor is used to detect whether the liquid suction attachment is below the diffuse reflection sensor when the first clamping component is driven by the handling device to move to the position where it clamps the positioning tooling;

[0059] The controller is further used to judge whether the position of the first clamping component matches the position to be clamped of the positioning tooling according to the detection result of the diffuse reflection sensor. If not, it controls the handling device to move and adjust the position of the first clamping component.

[0060] In a possible implementation manner, the first clamping component includes:

[0061] Two oppositely arranged clamping jaws, which are slidably connected to the rack;

[0062] A first driving member, which is connected to the two clamping jaws and drives the two clamping jaws to move towards or away from each other, so as to clamp the positioning plate from opposite sides of the positioning plate, or loosen the positioning plate.

[0063] In a possible implementation manner, the first driving member includes:

[0064] A connecting rod, which is rotatably connected to the rack, and threads with opposite helix directions are arranged at both ends of the connecting rod, and the two clamping jaws are respectively screwed to both ends of the connecting rod;

[0065] A first motor, which is in transmission connection with the connecting rod to drive the connecting rod to rotate so as to move the clamping jaw.

[0066] In a possible implementation manner, a supporting portion extending between the positioning plate and the liquid suction member is provided on the clamping jaw, and balls are provided on one side of the supporting portion in contact with the positioning plate.

[0067] In a possible implementation manner, the grasping tooling further includes a first proximity switch communicatively connected to the controller. The first proximity switch is disposed on the frame and is configured to be triggered when it contacts the positioning tooling when the distance between the clamping jaw and the liquid suction member driven by the handling device is less than a preset value.

[0068] The controller is further configured to control the handling device to stop moving when the first proximity switch is triggered.

[0069] In a possible implementation manner, the grasping tooling further includes a pressing assembly disposed on the frame. The pressing assembly is configured to press the positioning plate against the supporting portion when the clamping jaw clamps the positioning plate.

[0070] In a possible implementation manner, the pressing assembly includes:

[0071] A pressing plate configured to abut against the positioning plate when the clamping jaw clamps the positioning plate;

[0072] A second driving member disposed on the frame. The output end of the second driving member is connected to the pressing plate and drives the pressing plate to move so that the pressing plate contacts or separates from the positioning plate.

[0073] In a possible implementation manner, the grasping tooling further includes a second proximity switch communicatively connected to the controller. The second proximity switch is disposed on one side of the pressing plate and is configured to contact the positioning plate and remain in a triggered state when the clamping jaw holds the positioning plate.

[0074] The controller is further configured to determine whether the liquid suction member has fallen according to the state of the second proximity switch.

[0075] In a possible implementation manner, the grasping tooling further includes:

[0076] At least two second clamping assemblies, with at least one second clamping assembly correspondingly provided at each end of the positioning plate;

[0077] A third driving member, which is connected to the second clamping assembly to drive the second clamping assemblies located at both ends of the positioning plate to move towards or away from each other, so as to clamp or release the positioning plate.

[0078] In a possible implementation manner, the second clamping assembly includes a positioning member and a second bolt. The positioning member is connected to the third driving member. The second bolt penetrates through the positioning member and is threadedly connected to the positioning member. One end of the second bolt is used to abut against the end of the positioning plate when clamping the positioning plate.

[0079] In a possible implementation manner, the third driving member is a guide rod cylinder, and the piston rod of the guide rod cylinder is connected to the positioning member.

[0080] In the battery pack debonding method, debonding system and debonding auxiliary device provided by the embodiments of the present application, in the battery pack debonding method, a liquid adsorbent is placed on the top of the battery cell, and then a debonding solvent is poured onto the liquid adsorbent to wet the liquid adsorbent. The liquid adsorbent guides the debonding solvent from the gap between adjacent battery cells to the structural adhesive, and at the same time, the debonding solvent is also poured onto the structural adhesive between the tray and the battery cell, so that the structural adhesive can come into contact with the debonding solvent. After the debonding solvent contacts the structural adhesive at a preset temperature for a certain period of time, the structural adhesive can be rendered ineffective and no longer adhere to the tray and the battery cell. Compared with the traditional battery pack recycling method, it will not damage the battery cells and the tray, facilitating the reuse of good battery cells and trays, improving the recycling efficiency of the battery pack. Moreover, the debonding solvent adsorbed on the liquid adsorbent can continuously wet the structural adhesive through the gap between the battery cells, effectively reducing the usage amount of the debonding solvent, improving the debonding efficiency, shortening the debonding time, and thus reducing the battery pack recycling cost. Description of the Drawings

[0081] The drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the present application and used together with the description to explain the principles of the present application.

[0082] Figure 1 It is a schematic flow chart of the debonding method provided by the embodiments of the present application;

[0083] Figure 2 It is a schematic structural diagram of the cooperation between the liquid adsorbent and the package to be debonded in the debonding method provided by the embodiments of the present application;

[0084] Figure 3 is Figure 2 the A-A sectional view in;

[0085] Figure 4 It is a schematic structural diagram of the debonding system provided by the embodiments of the present application;

[0086] Figure 5 Schematic structural diagram of the positioning tooling in the debinding auxiliary device provided by the embodiment of the present application;

[0087] Figure 6 Schematic structural diagram of the fixing component in the debinding auxiliary device provided by the embodiment of the present application;

[0088] Figure 7 is Figure 5 Enlarged schematic diagram of the structure within the circle in;

[0089] Figure 8 Schematic structural diagram of the gripping tooling in the debinding auxiliary device provided by the embodiment of the present application.

[0090] Reference numerals:

[0091] 11 - Tray, 12 - Battery cell, 20 - Liquid suction attachment, 30 - Debinding solvent, 100 - Placement station, 200 - Solvent filling station, 300 - High - temperature standing station, 400 - Separation station, 110 - Positioning tooling, 111 - Positioning plate, 112 - Connecting frame, 113 - Fixing component, 1131 - First fixing plate, 1132 - Second fixing plate, 1133 - Third fixing plate, 1134 - Connecting column, 1135 - Elastic member, 1136 - Limiting member, 1137 - First bolt, 114 - Supporting member, 1141 - Limiting groove, 120 - Gripping tooling, 121 - Frame, 122 - First clamping component, 1221 - Claw, 1222 - Connecting rod, 1223 - Support part, 1224 - Ball, 123 - Pressing component, 1231 - Second driving member, 1232 - Pressing plate, 124 - Second clamping component, 1241 - Second bolt, 1242 - Positioning member, 1243 - Third driving member, 125 - Distance measuring sensor, 126 - First proximity switch, 127 - Diffuse reflection sensor, 128 - Second proximity switch.

[0092] Through the above - mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed description of the specific implementation

[0093] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0094] With the continuous development of electric vehicles, power battery packs are constantly upgraded. At present, most new energy vehicles on the market have begun to use CTB (Cell to Body) battery packs. Correspondingly, the number of scrapped CTB battery packs is increasing. Because CTB battery packs need to withstand a certain torsional stiffness, the internal battery cells and the tray are mostly connected by structural adhesive. When disassembling the waste battery packs, this structural adhesive will make disassembly extremely difficult.

[0095] At present, there are two common ways to disassemble CTB battery packs:

[0096] One is violent disassembly, which involves recycling the battery pack by recovering the raw materials. This method is not only easy to pollute the environment, but also wastes manpower and material resources to re-make the battery cells from the recycled raw materials.

[0097] The other method is to destroy the tray to ensure the integrity of the battery cells. Although this method can recycle some good battery cells, it is difficult to disassemble and the tray is damaged, which will also cause waste of resources. In addition, this method cannot be used for assembly line operation. Therefore, it cannot be applied to large-scale disassembly of battery packs and has low efficiency.

[0098] In this regard, the embodiment of the present application provides a battery pack debonding method, which uses a debonding solvent to treat the structural adhesive to render it ineffective, thereby directly separating the tray and the battery cell. Compared with the traditional disassembly method, it will not cause damage to the battery cell and the tray, and can reuse good battery cells and trays, effectively improving the recycling efficiency. At the same time, the debonding system can realize the assembly line operation of battery pack recycling, can adapt to the disassembly of large quantities of battery packs, and can effectively improve the efficiency of battery pack disassembly.

[0099] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0100] In some embodiments of this application, see Figure 1 As shown, the battery pack debonding method includes the following steps:

[0101] S101. Place a liquid adsorbent 20 on top of the cell 12 to be debonded;

[0102] Specifically, the battery pack debonding method is mainly used to disassemble the debonding package body, where the debonding package body is a battery pack body having a tray 11 and a plurality of battery cells 12, and the battery cells 12 are fixed on the tray 11 by structural adhesive. The bottom of the battery cell 12 is adhered to the bottom of the tray 11 by structural adhesive. The liquid absorbent member 20 can be placed manually or by means of auxiliary tools such as a manipulator on the top of the battery cell 12, that is, on the side of the battery cell 12 facing away from the tray 11, and cover at least part of the gap existing between the battery cells 12.

[0103] S102. Add the debonding solvent 30;

[0104] Specifically, please refer to Figure 2 and Figure 3 As shown, the debonding solvent 30 can be added into the gap between the side walls of the battery cell 12 and the tray 11, and onto the liquid absorbent member 20, through manual or auxiliary equipment such as a liquid injection device, so that the debonding solvent 30 wets the liquid absorbent member 20. Thus, when the liquid absorbent member 20 covers the battery cell 12, the debonding solvent 30 can contact the structural adhesive through the gap between adjacent battery cells 12 for debonding.

[0105] When adding, the debonding solvent 30 can be added into the tray 11 to gradually wet the liquid absorbent member 20, or the debonding solvent 30 can be added onto the liquid absorbent member 20, and after wetting the liquid absorbent member 20, it is dripped into the gap between the tray 11 and the battery cell 12. Or the debonding solvent 30 can be added into the gap between the tray 11 and the battery cell 12 and onto the liquid absorbent member 20 respectively from the edge of the tray 11. This embodiment does not limit it here.

[0106] The debonding solvent 30 can be a common organic solvent that can make the structural adhesive ineffective, including but not limited to N-methylpyrrolidone, γ-butyrolactone, and butyl cellosolve.

[0107] The liquid absorbent member 20 is mainly made of a flexible material that can absorb the debonding solvent 30. It can be made into a sheet structure, such as felt, wool felt, fiber cotton pad, or sponge pad. It can be understood that in terms of material, the liquid absorbent member 20 can also be made of other flexible materials with adsorption ability, and it does not necessarily have to be a sheet, as long as it can effectively cover the top of the battery cell 12 and guide the adsorbed debonding solvent 30 to contact the structural adhesive through the gap between the battery cells 12.

[0108] Among them, it is more recommended to use felt as the liquid absorbent member 20. Felt can not only effectively adsorb the debonding solvent 30, but also has a low cost and can be reused, effectively reducing the debonding cost.

[0109] That is, for the reusable liquid adsorbent 20 , after the debonding is completed, the liquid adsorbent 20 can be separated from the battery cell 12 , and then the separated liquid adsorbent 20 can be used for the debonding of another package to be debonded.

[0110] In order to improve the debonding effect, the area of ​​the liquid adsorbent 20 can be made larger than the upper surface area of ​​the square array composed of all battery cells 12. That is, when the liquid adsorbent 20 is placed on the battery cell 12, the projection of the battery cell 12 in the vertical direction is located within the liquid adsorbent 20, so that the liquid adsorbent 20 can cover the gaps between all battery cells 12, thereby improving the debonding effect.

[0111] In addition, when the organic solvent is added into the gap between the tray 11 and the battery cell 12 , in order to avoid wasting the debonding solvent 30 and ensure the debonding effect, the upper surface of the debonding solvent 30 may be made 5 mm to 10 mm higher than the upper surface of the structural adhesive.

[0112] S103. After placing the package to be debonded at a preset temperature for a preset time, a debonded package is obtained. The main difference between the package to be debonded and the debonded package is that the structural adhesive fails, and the battery cell 12 and the tray 11 are no longer fixedly connected and can be easily separated.

[0113] Specifically, the preset temperature is the optimal active temperature of the debonding solvent 30 , which reduces the influence of the ambient temperature on the debonding process and helps to improve the debonding efficiency.

[0114] It can be understood that the preset temperature and the preset time are adjusted according to the type of debonding solvent 30 used. The preset temperature is generally 0-40°C, and the specific value is determined according to the actual situation, so as to make the debonding solvent 30 have better activity without causing the debonding solvent 30 to volatilize. The preset time is generally 12h-24h, so that the structural adhesive can be jelly-like and without any stickiness after the debonding is completed, so that the battery cell 12 can be easily separated from the tray 11.

[0115] It was found during the production process that when the preset temperature was 30°C, it could meet the temperature requirements of most organic solvents used as the debonding solvent 30 without causing the debonding solvent 30 to volatilize, thereby effectively accelerating the debonding process.

[0116] The present application also provides a disassembly system, which is mainly used in the battery pack disassembly method in the above embodiment. The structure of the disassembly system is further described below.

[0117] In some embodiments, see Figure 4 As shown, the disintegration system includes a placement station 100, a solvent filling station 200 and a first transport device.

[0118] The first transportation device is used to transport the package body to be decayed, so that the package body to be decayed can move from the placement station 100 to the solvent filling station 200. At the placement station 100, a liquid suction attachment 20 is placed, and a decayed glue assisting device is provided. The decayed glue assisting device can place the liquid suction attachment 20 on the battery core 12 of the package body to be decayed. The solvent filling station 200 is provided with a liquid filling device, and the liquid filling device is used to fill the decayed glue solvent 30 onto the liquid suction attachment 20 and / or into the tray 11.

[0119] Specifically, when filling the decayed glue solvent 30, the liquid filling device can fill the decayed glue solvent 30 into the tray 11, so that the decayed glue solvent 30 gradually wets the liquid suction attachment 20, or fill the decayed glue solvent 30 onto the liquid suction attachment 20, wet the liquid suction attachment 20 and then drip it into the gap between the tray 11 and the battery core 12. Or, the decayed glue solvent 30 is filled into the gap between the tray 11 and the battery core 12 and onto the liquid suction attachment 20 respectively from the edge of the tray 11. This embodiment does not limit it here.

[0120] It can be understood that the decayed glue assisting device can be a common structure such as a manipulator, as long as it can move the liquid suction attachment 20 and place the liquid suction attachment 20 on the top of the battery core 12. The liquid filling device can also be a combination of a pump and a liquid storage tank, or other common structures, as long as it can fill the decayed glue solvent 30.

[0121] Through the decayed glue system, batch decayed glue of the package body to be decayed can be realized, effectively improving the decayed glue efficiency. And covering the liquid suction attachment 20 and filling the decayed glue solvent 30 are both automatically carried out without manual operation, which can effectively avoid harm to the human body caused by the volatilization of the decayed glue solvent 30.

[0122] In some embodiments, the decayed glue system further includes a high-temperature standing station 300, and the temperature of the high-temperature standing station 300 is maintained at a preset temperature, so that after the package body to be decayed stands at the high-temperature standing station 300 for a preset time, the structural glue fails to obtain a decayed glue package body;

[0123] Among them, the first transportation device is also used to transport the package body to be decayed from the solvent filling station 200 to the high-temperature standing station 300.

[0124] Since decayed glue usually requires standing for 12h - 24h, which takes a long time, by controlling the number of positions for placing the package body to be decayed at the high-temperature standing station 300, the number of package bodies to be decayed undergoing decayed glue simultaneously can be controlled, thereby effectively improving the decayed glue efficiency.

[0125] It can be understood that the high-temperature standing station 300 can be arranged as a common high-temperature room, and the temperature in the high-temperature room is controlled by devices such as air conditioners to adapt to the decayed glue requirements of the decayed glue solvent 30.

[0126] Alternatively, the high-temperature standing station 300 may not be provided. Some of the debinding solvents 30 have good activity at room temperature. In this case, only a position is needed to place the debinding package.

[0127] In some embodiments, the debinding system further includes a separation station 400. The separation station 400 is also provided with a debinding auxiliary device. The debinding auxiliary device is used to grab and move the liquid suction attachment 20. The debinding auxiliary device at the separation station 400 has a different function from the debinding auxiliary device at the placement station 100. The debinding auxiliary device at the separation station 400 is used to separate the liquid suction attachment 20 from the battery cell 12.

[0128] Among them, the first transportation device is also used to transport the debinding package to the separation station 400.

[0129] This enables the debinding system to complete the entire debinding process, so that the debinding package is no longer covered by the liquid suction attachment 20 and can be directly transported to the subsequent processing link to separate the battery cell 12 and the tray 11, further improving the convenience of disassembling the battery pack.

[0130] Furthermore, the liquid suction attachment 20 can be reused. Therefore, a second transportation device can be provided to transport the separated liquid suction attachment 20 to the placement station 100 for recycling.

[0131] It can be understood that transporting the separated liquid suction attachment 20 to the placement station 100 for recycling here can not only refer to directly transporting the liquid suction attachment 20 from the separation station 400 to the placement station 100, but also refer to stacking it to a certain extent at the separation station 400 and then transporting it to the placement station 100, or referring to first transporting the liquid suction attachment 20 separated at the separation station 400 to a dedicated storage repository for placement and then transporting it from the storage repository to the placement station 100. This embodiment does not limit it here.

[0132] In addition, the second transportation device and the first transportation device can both be common transportation structures such as AGV (Automated Guided Vehicle) transportation, slide rails, conveyor belts, etc. This embodiment does not limit it here.

[0133] During actual use, the liquid suction attachment 20 is generally made of a flexible material and is prone to deformation, making it difficult to handle. To improve the convenience of using the liquid suction attachment 20, a debinding auxiliary device is provided in the following embodiments.

[0134] Please refer to Figure 5 and Figure 8As shown, the debonding auxiliary device includes a positioning tool 110 and a grabbing tool 120. The positioning tool 110 is used to connect the liquid adsorbent 20, and the grabbing tool 120 is used to grab the positioning tool 110 and drive the positioning tool 110 to move so that the liquid adsorbent 20 covers the battery cell 12 or is separated from the battery cell 12.

[0135] Specifically, the positioning tool 110 can be pre-connected with the liquid adsorbent 20 , and the grabbing tool 120 can directly grab the positioning tool 110 to drive the liquid adsorbent 20 to move, making it easier to connect or separate the liquid adsorbent 20 from the battery cell 12 .

[0136] In some embodiments, see Figure 5 As shown, the positioning tool 110 includes a connecting frame 112 and a positioning plate 111 .

[0137] A plurality of fixing components 113 are provided on the connecting frame 112, and the plurality of fixing components 113 are respectively connected to different parts of the liquid adsorbent 20 to keep the shape of the liquid adsorbent 20 stable. The positioning plate 111 is connected to the side of the connecting frame 112 away from the liquid adsorbent 20, and the grabbing tool 120 is used to grab the positioning plate 111 and drive the positioning plate 111 to move.

[0138] Among them, multiple fixing components 113 can be set corresponding to the middle and edge of the liquid adsorbent 20 to effectively support the flexible liquid adsorbent 20, and the liquid adsorbent 20 can be fixed on the positioning plate 111. The positioning plate 111 is a rigid part. When the grasping tool 120 grasps the positioning part 1242, it will not be deformed, which facilitates the grasping tool 120 to grasp.

[0139] At the same time, when the gripping tool 120 covers the liquid adsorbent 20 on the battery cell 12, the fixing component 113 prevents the liquid adsorbent 20 from being deformed, thereby avoiding the situation where the liquid adsorbent 20 cannot effectively cover the surface of the battery cell 12 due to deformation, thereby improving the convenience of using the liquid adsorbent 20.

[0140] In addition, after the positioning plate 111 and the connecting frame 112 are connected, the liquid adsorbent 20 can be prevented from directly contacting the grabbing tool 120, which can reduce the probability of damage to the liquid adsorbent 20.

[0141] In some embodiments, see Figure 5 and Figure 7 As shown, the connecting frame 112 is provided with supporting members 114 on two opposite sides, and the positioning tooling 110 is connected to the liquid adsorbent 20 in a one-to-one correspondence. When the liquid adsorbent 20 is stacked, one of the two adjacent connecting frames 112 will contact the upper support of the other, so that there is a gap between the adjacent liquid adsorbents 20.

[0142] Specifically, the liquid absorption member 20 is generally made of a flexible material. If it is directly stacked, it is inconvenient to separate and use. Moreover, if the liquid absorption member 20 is directly squeezed, it is easy to cause deformation or damage to the liquid absorption member 20. After adding the supporting member 114, in two adjacent positioning jigs 110, the connecting frame 112 above is either lapped on the supporting portion lapped on the connecting frame 112 below, and is supported by the supporting portion, so as to avoid direct compression of the liquid absorption member 20. And there is a gap between adjacent liquid absorption members 20, which also facilitates the gripping jig 120 to grip the liquid absorption member 20.

[0143] Exemplarily, the connecting frame 112 can be composed of multiple profiles. The profile includes a cross bar and a vertical bar. One or more cross bars and one or more vertical bars can be provided. Here, multiple means two or more. The cross bar extends along the width direction of the liquid absorption member 20, and the vertical bar extends along the length direction of the liquid absorption member 20. The length of the cross bar is less than or equal to the width of the liquid absorption member 20, and the length of the vertical bar is greater than the length of the liquid absorption member 20. This enables both ends of the vertical bar to extend outside the liquid absorption member 20, and the supporting member 114 is provided at both ends of the vertical bar, and the upper surface of the supporting member 114 is flush with or higher than the upper surface of the positioning plate 111.

[0144] The fixing assembly 113 can be fixed to the cross bar and the vertical bar through common structures such as bolts to fix the liquid absorption member 20 to the cross bar and the vertical bar. The positioning plate 111 can also be directly connected to the cross bar and the vertical bar through common structures such as bolts.

[0145] When multiple liquid absorption members 20 are stacked, the end of the vertical bar directly contacts the supporting member 114 below it and is supported by the supporting member 114. This can not only protect the liquid absorption member 20, but also enable more liquid absorption members 20 to be placed at the position for placing the liquid absorption member 20 at the placing station 100 or the separating station 400, which helps to save space.

[0146] In some embodiments, a limiting groove 1141 is provided on the supporting member 114, and a limiting portion is also provided on the connecting frame 112. When at least two liquid absorption members 20 are stacked, in two adjacent connecting frames 112, the limiting portion of the upper one is inserted into the limiting groove 1141 of the other one.

[0147] Specifically, the limiting portion here can be a protruding part at the end of the vertical bar or directly the end of the vertical bar, as long as it can be inserted into the limiting groove 1141 to prevent the vertical bar from moving in the width direction and the length direction, and prevent collapse when the liquid absorption members 20 are stacked.

[0148] It is understandable that the connecting frame 112 can also be set to other structures, as long as a limiting portion that engages with the limiting groove 1141 is set at a position where it extends to the outside of the liquid adsorbent 20 and is opposite to the limiting groove 1141, for example, the limiting portion is a structure such as a card block.

[0149] Exemplarily, the limiting groove 1141 is closed at one end facing away from the positioning plate 111 , and the top of the limiting groove 1141 and the end of the limiting groove 1141 adjacent to the positioning plate 111 are both open.

[0150] After the vertical rod is placed into the limiting groove 1141 from above, the position of the vertical rod can be directly limited by the limiting groove 1141, so that the vertical rod can only be separated from the limiting groove 1141 by being lifted up.

[0151] In some embodiments, see Figure 5 and Figure 6 As shown, the fixing assembly 113 includes a first fixing plate 1131 , a second fixing plate 1132 , a third fixing plate 1133 and an elastic member 1135 .

[0152] The first fixing plate 1131 is connected to the connecting frame 112, and the second fixing plate 1132 is provided with a connecting column 1134. The second fixing plate 1132 is used to abut against the side of the liquid adsorbent 20 away from the connecting frame 112, and the connecting column 1134 is used to pass through the liquid adsorbent 20 and connect to the first fixing plate 1131. The third fixing plate 1133 is arranged opposite to the second fixing plate 1132, and the third fixing plate 1133 is used to cooperate with the second fixing plate 1132 to clamp the liquid adsorbent 20 from the opposite sides of the liquid adsorbent 20 respectively. The third fixing plate 1133 is passed through the connecting column 1134 and is slidably connected to the connecting column 1134. The elastic member 1135 is sleeved on the connecting column 1134 and is located between the third fixing plate 1133 and the first fixing plate 1131. The elastic member 1135 is used to drive the third fixing plate 1133 to press the liquid adsorbent 20 onto the second fixing plate 1132.

[0153] Specifically, the elastic member 1135 can be a structure such as a spring or a spring sheet, which is in a compressed state and can provide continuous pressure to press the third fixing plate 1133 against the second fixing plate 1132 to fix the liquid adsorption member 20. At the same time, the elastic member 1135 can adjust the extrusion force to avoid damage to the liquid adsorption member 20 due to excessive extrusion force.

[0154] The connecting column 1134 can be directly fixed on the first connecting plate after passing through the liquid adsorbent 20, or can be detachably connected to the first fixing plate 1131, which is not limited in this embodiment.

[0155] In actual use, the liquid adsorbent 20 may be deformed or damaged due to repeated use. In order to facilitate replacement of the new liquid adsorbent 20 and reduce costs, the connecting column 1134 and the first fixing plate 1131 may be detachably connected.

[0156] Exemplarily, the fixing assembly 113 also includes a limit member 1136 and a first bolt 1137 . The limit member 1136 is provided with a first connecting hole. The first bolt 1137 passes through the first connecting hole and is screwed to the first fixing plate 1131 to press the limit member 1136 onto the first fixing plate 1131 .

[0157] Among them, the end of the connecting column away from the second fixing plate 1132 passes through the first fixing plate 1131 and extends to the side of the first fixing plate 1131 away from the third fixing plate 1133, and a slot is provided at the end of the connecting column 1134 away from the second fixing plate 1132, and a clamping portion cooperating with the clamping portion is provided on the limiting member 1136 to limit the relative position between the connecting column 1134 and the first fixing plate 1131 when the clamping portion is inserted into the slot.

[0158] Specifically, a connecting hole is provided on the first fixing plate 1131, and the end of the connecting column 1134 facing away from the second fixing plate 1132 can extend through the connecting hole to the side of the first fixing plate 1131 facing away from the third fixing plate 1133, and a slot is provided on the side of the connecting column 1134. After the clamping portion on the limiting member 1136 is inserted into the slot on the connecting column 1134, the connecting column 1134 can be prevented from moving up and down relative to the first fixing plate 1131, thereby locking the connecting column 1134 and the second fixing plate 1132 on the first fixing plate 1131.

[0159] It is understandable that the connecting column 1134 may be directly connected to the first fixing plate 1131 , and detachably connected to the second fixing plate 1132 via common connection methods such as threads or bolts.

[0160] In some embodiments, in order to further facilitate the connection between the positioning tool 110 and the liquid adsorbent 20, the connecting column 1134 includes a cylindrical section and a truncated cone section that are connected to each other. The end of the cylindrical section that is away from the truncated cone section is connected to the second fixing plate 1132. The outer diameter of the truncated cone section gradually decreases along the direction from the second fixing plate 1132 to the third fixing plate 1133, thereby forming a pointed tip. The pointed tip can directly pierce the flexible liquid adsorbent 20 without having to make a hole in the liquid adsorbent 20 in advance.

[0161] In some embodiments, see Figure 8 As shown, the grabbing tool 120 includes a transport device, a frame 121 and at least one first clamping assembly 122 .

[0162] Among them, the handling device is connected to the frame 121, and the first clamping assembly 122 is arranged on the frame 121. The first clamping assembly 122 is used to clamp the positioning plate 111. During use, the handling device can drive the frame 121 to move, so that the first clamping assembly 122 places the liquid suction attachment 20 on the battery cell 12, or separates the liquid suction attachment 20 from the battery cell 12.

[0163] It can be understood that the handling device can be a common handling structure such as a multi-axis manipulator or a multi-axis truss structure. As long as it can drive the frame 121 to move between the positions of handling and grasping the liquid suction attachment 20 and placing the liquid suction attachment 20, and can accurately adjust the position so that the clamping position of the first clamping assembly 122 corresponds to the to-be-clamped position of the positioning tooling 110, this embodiment does not limit it here.

[0164] For example, a six-axis manipulator can be used as the handling device, which can adjust the position in multiple dimensions and has high flexibility.

[0165] In some embodiments, the first clamping assembly 122 includes two oppositely arranged jaws 1221 and a first driving member.

[0166] The jaws 1221 are slidably connected to the frame 121. For example, slide rails for the jaws 1221 to move can be arranged on the frame 121 to limit the sliding direction of the jaws 1221. The first driving member is connected to the two jaws 1221 and drives the two jaws 1221 to move towards each other or away from each other to clamp the positioning plate 111 from the opposite sides of the positioning plate 111, or loosen the positioning plate 111, so that the structure of the positioning plate 111 can be simplified without adding a dedicated part for clamping. The jaws 1221 can directly contact and clamp the two sides of the positioning plate 111.

[0167] It can be understood that multiple groups of the first clamping assembly 122 can be arranged side by side to clamp different positions of the positioning plate 111, improving the clamping stability and positioning effect.

[0168] In addition, in order to reduce the material consumption, the positioning plate 111 can be set as a square frame structure with a hollow middle, and only the edge is connected to the connecting frame 112 at multiple points. When clamping, in order to improve the strength of the positioning plate 111, the width can be increased at the position corresponding to the jaws 1221 to form a wider clamping platform, and the jaws 1221 can be clamped on the side of the clamping platform.

[0169] In some embodiments, the first driving member includes a connecting rod 1222 and a first motor. The connecting rod 1222 is rotatably connected to the frame 121. Threads with opposite helix directions are provided at both ends of the connecting rod 1222. Two clamping jaws 1221 are respectively screwed to both ends of the connecting rod 1222. The first motor is drivingly connected to the connecting rod 1222 to drive the connecting rod 1222 to rotate, so as to move the clamping jaws 1221.

[0170] The connecting rod 1222 extends along the moving direction of the two clamping jaws 1221. For example, the clamping jaws 1221 are clamped on both sides of the positioning plate 111 in the length direction. At this time, the extending direction of the connecting rod 1222 is the same as the length direction of the positioning plate 111, so that the first motor can be used to drive the two clamping jaws 1221 to move synchronously and in opposite directions.

[0171] It can be understood that the first driving member can also be other common structures, as long as it can drive the two clamping jaws 1221 to move synchronously and in opposite directions. This embodiment does not limit it here.

[0172] In some embodiments, a supporting portion 1223 extending between the positioning plate 111 and the liquid suction member 20 is provided on the clamping jaw 1221. A ball 1224 is provided on the side of the supporting portion 1223 in contact with the positioning plate 111.

[0173] Specifically, the clamping jaw 1221 can be set to a structure similar to a C shape, and the side plate at the bottom is the supporting portion 1223. When clamping the positioning plate 111, the supporting portion 1223 extends below the clamping platform and can make sliding contact with the bottom of the clamping platform through the ball 1224, which can not only support the positioning plate 111 and improve the clamping stability, but also reduce the friction with the clamping platform and reduce equipment wear.

[0174] In the actual application process, in order to avoid hard contact between the clamping jaw 1221 and the positioning plate 111 and reduce the machining accuracy requirements, a gap of 1 mm - 2 mm can be provided between the final clamping position of the clamping jaw 1221 and the edge of the positioning plate 111.

[0175] At this time, in order to ensure the positioning accuracy and clamping effect, the grasping tooling 120 can further include a pressing component 123 provided on the frame 121. The pressing component 123 is used to press the positioning plate 111 against the supporting portion 1223 when the clamping jaw 1221 clamps the positioning plate 111.

[0176] Further, the pressing component 123 includes a pressing plate 1232 and a second driving member 1231. The second driving member 1231 is provided on the frame 121. The output end of the second driving member 1231 is connected to the pressing plate 1232 and drives the pressing plate 1232 to move, so that the pressing plate 1232 contacts or separates from the positioning plate 111.

[0177] Specifically, when it is necessary to clamp the positioning plate 111, the pressing plate 1232 is used to move downward and abut against the positioning plate 111 after the clamping jaw 1221 clamps the positioning plate 111 under the drive of the second driving member 1231, so as to press the positioning plate 111 against the supporting portion 1223. When it is necessary to loosen the positioning plate 111, it moves upward under the drive of the second driving member 1231 and separates from the positioning plate 111.

[0178] It can be understood that the second driving member 1231 can be a common device such as a cylinder or an electric cylinder, as long as it can drive the pressing plate 1232 to move up and down.

[0179] In some embodiments, the grasping tooling 120 further includes a third driving member 1243 and at least two second clamping assemblies 124. At least one second clamping assembly 124 is correspondingly arranged at each end of the positioning plate 111. The third driving member 1243 is connected to the second clamping assembly 124 to drive the at least two second clamping assemblies 124 to move in a direction approaching or separating from each other, so as to clamp the positioning plate 111 or loosen the positioning plate 111.

[0180] Specifically, the second clamping assemblies 124 located at both ends of the positioning plate 111 move in a direction approaching or separating from each other under the drive of the third driving member 1243. When approaching each other, they can contact both ends of the positioning plate 111, that is, both sides in the width direction, to clamp the positioning plate 111. When separating from each other, they are separated from the positioning plate 111 to loosen the positioning plate 111.

[0181] It can be understood that the moving directions of the clamping jaws 1221 in the first clamping assembly 122 and the second clamping assembly 124 are opposite.

[0182] For all the second clamping assemblies 124, they can be driven to move synchronously by the same third driving member 1243, or each second clamping assembly 124 can be individually corresponding to a third driving member 1243. This embodiment does not limit it here.

[0183] It can be understood that the third driving member 1243 can be a common driving device such as a cylinder or an electric cylinder. This embodiment does not limit it here.

[0184] Exemplarily, the third driving member 1243 can be a guide rod cylinder, and its piston rod is connected to the second clamping assembly 124.

[0185] In some embodiments, the second clamping assembly 124 includes a positioning member 1242 and a second bolt 1241. The positioning member 1242 is connected to the third driving member 1243. The second bolt 1241 penetrates through the positioning member 1242 and is threadedly connected to the positioning member 1242. One end of the second bolt 1241 is used to abut against the end of the positioning plate 111 when the second clamping assembly 124 clamps the positioning plate 111.

[0186] Among them, the second bolt 1241 has a certain length, and the length of the end of the second bolt 1241 that is used to contact the positioning plate 111 and extends outside the positioning member 1242 can be adjusted according to the actual situation, so as to change the clamping position of the second bolt 1241, effectively adjust the clamping accuracy, and adapt to the clamping of different positioning plates 111.

[0187] In some embodiments, the grasping tooling 120 further includes a distance measuring sensor 125 and a controller. The distance measuring sensor 125 is used to obtain the straight-line distance between the positioning plate 111 or the liquid suction attachment 20 and the first clamping assembly 122. The controller is communicatively connected to the handling device, the first clamping assembly 122, and the distance measuring sensor 125. The controller is used to control the handling device to drive the first clamping assembly 122 to move according to the straight-line distance between the positioning tooling 110 or the liquid suction attachment 20 and the first clamping assembly 122, so as to clamp the positioning tooling 110.

[0188] Specifically, during use, the placement heights of different liquid suction attachments 20 may be different. At this time, the height information of the liquid suction attachment 20 can be obtained through the distance measuring sensor 125, and the handling device can be controlled by the controller to move the clamping jaw 1221 to the corresponding height, so that the clamping jaw 1221 can accurately grasp the positioning plate 111.

[0189] It can be understood that the distance measuring sensor 125 can be a common infrared sensor, laser sensor, etc., and the present embodiment does not limit it here.

[0190] In some embodiments, in order to prevent the clamping jaw 1221 from hitting the connecting frame 112 when the distance measuring sensor 125 fails, a first proximity switch 126 can be provided on the frame 121. The first proximity switch 126 is located between the two clamping jaws 1221 of a first clamping assembly 122.

[0191] When the distance measuring sensor 125 fails, the first proximity switch 126 can play a role in preventing mistakes. When the handling device drives the frame 121 to move downward by a certain distance, that is, when the distance between the clamping jaw 1221 and the liquid suction attachment 20 in the vertical direction is less than a preset value, that is, a safety value, the first proximity switch 126 will contact the frame 121 or the positioning plate 111 and thus be triggered. At this time, the controller controls the handling device not to continue moving downward, so as to prevent the clamping jaw 1221 from hitting the connecting frame 112 or the positioning plate 111.

[0192] It can be understood that the first proximity switch 126 can also be directly connected to the control part of the handling device, and when it is triggered, the handling device is directly powered off and stops moving.

[0193] In some embodiments, the grasping device 120 further includes a second proximity switch 128 communicatively connected to the controller. The second proximity switch 128 is configured to contact the positioning tooling 110 or the liquid suction attachment 20 when the grasping tooling 120 clamps the positioning tooling 110 and remain in a triggered state. The controller then determines whether the liquid suction attachment 20 has fallen based on the state of the second proximity switch 128.

[0194] Specifically, the second proximity switch 128 is installed on the pressing plate 1232 and moves along with the pressing plate 1232. It is triggered by the positioning plate 111 only when the pressing plate 1232 is pressed against the positioning plate 111, ensuring the triggering effect.

[0195] When the grasping tooling 120 clamps the positioning plate 111, the second proximity switch 128 is located inside the positioning plate 111, that is, its projection in the vertical direction is within the positioning plate 111 and contacts the positioning plate 111, being triggered by the extrusion of the positioning plate 111. At this time, the controller can determine that the liquid suction attachment 20 has not fallen and is in a normal clamped state. If the proximity switch is not triggered when the grasping tooling is in the position and state of clamping the positioning plate 111, the controller can determine that the liquid suction attachment 20 has fallen, so as to promptly notify the operator for handling, avoiding the situation where the liquid suction attachment 20 is not covered on some packages to be debonded, and ensuring the debonding effect.

[0196] In some embodiments, the grasping tooling 120 further includes a diffuse reflection sensor 127 communicatively connected to the controller. The diffuse reflection sensor 127 is configured to detect whether the liquid suction attachment 20 is below the diffuse reflection sensor 127 when the first clamping assembly 122 is driven by the handling device to move to the position of clamping the positioning tooling 110.

[0197] The controller is then configured to determine whether the position of the first clamping assembly 122 matches the position to be clamped of the positioning tooling 110 based on the detection result of the diffuse reflection sensor 127. If not, it controls the handling device to move and adjust the position of the first clamping assembly 122.

[0198] Specifically, during the process of the grasping tooling 120 clamping the positioning plate 111, if the position of the liquid suction attachment 20 has a large deviation, it may cause the displacement of the positioning plate 111 to be too large, and the first clamping assembly 122 cannot directly clamp the positioning plate 111, resulting in clamping failure. The diffuse reflection sensor 127 is used to detect the displacement amount of the liquid suction attachment 20 to avoid the problem of grasping failure.

[0199] Among them, the detection position of the diffuse reflection sensor 127 can be between the two jaws 1221 and adjacent to the inner side of the connecting rod 1222 close to the positioning plate 111.

[0200] The diffuse reflection sensor 127 is an optoelectronic sensor that uses the principle of diffuse reflection of light to detect the presence of an object or measure the distance. It emits a light beam onto the target object and then receives the light reflected from the object's surface for detection. By adjusting its detection distance, it can determine whether the lower positioning plate 111 has a large-scale displacement, thereby assisting the grasping tool 120 to grasp the positioning plate 111.

[0201] For the sake of easy understanding, the following further elaborates on the battery pack debonding method in combination with the debonding system of the debonding auxiliary device in the above-mentioned embodiment:

[0202] The first transportation device transports the package to be debonded to the placement station 100. Through the movement of the handling device, the first clamping assembly 122, the second clamping assembly 124, and the pressing assembly 123 are moved to the corresponding positions to grasp the liquid suction attachment 20. Then, the handling device drives the first clamping assembly 122, the second clamping assembly 124, and the pressing assembly 123 to move, covering the liquid suction attachment 20 on the upper surface of the battery cell 12.

[0203] The first transportation device transports the package to be debonded to the solvent filling station 200, and then fills the debonding solvent 30 through the liquid filling device.

[0204] The first transportation device transports the package to be debonded filled with the debonding solvent 30 to the high-temperature static station 300, where it is static for 12 - 24 hours for debonding to make the structural adhesive ineffective, obtaining the debonded package.

[0205] The first transportation device transports the debonded package to the separation station 400. The handling device at the separation station 400 drives the first clamping assembly 122, the second clamping assembly 124, and the pressing assembly 123 to move, clamping the liquid suction attachment 20 on the debonded package. The handling device drives the first clamping assembly 122, the second clamping assembly 124, and the pressing assembly 123 to move to separate the liquid suction attachment 20 and place it in a dedicated position. The later separated liquid suction attachment 20 can be transported to the placement station 100 through the second transportation device for recycling, which enables the entire debonding process to be closed-loop, that is, a closed space can be specially made for debonding without manual participation, reducing the harm caused by the debonding solvent 30 to the human body.

[0206] Among them, the following steps can be adopted to grasp the liquid suction attachment 20 by the grasping tool 120:

[0207] The ranging sensor 125 detects the height of the liquid suction attachment 20 to be grasped, and the controller controls the handling device to drive the first clamping assembly 122, the second clamping assembly 124, and the pressing assembly 123 to move to the corresponding positions.

[0208] The diffuse reflection sensor 127 detects whether the liquid suction attachment 20 has been displaced. If not, it controls the gripper 1221 to grip the positioning plate 111. At this time, only a part of the support portion 1223 is inserted under the clamping platform.

[0209] The handling device controls the first clamping assembly 122, the second clamping assembly 124, and the pressing assembly 123 to move upward, so that the liquid suction attachment 20 is suspended. The gripper 1221 moves secondarily in the direction of approaching each other, so that the support portion 1223 substantially entirely enters under the clamping platform. The second clamping assembly 124 moves in the direction of approaching each other to grip both ends of the positioning plate 111. Then, the pressing plate 1232 moves downward to press the positioning plate 111 against the support portion 1223.

[0210] When placing the liquid suction attachment 20, just operate in the reverse direction, and it will not be elaborated here.

[0211] Finally, it should be noted that: After considering the specification and practicing the invention disclosed here, those skilled in the art will easily think of other embodiments of the present invention. The present invention is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include the common general knowledge or conventional technical means in the technical field not disclosed in the present invention. It is not limited to the exact structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A method for disassembling a battery pack, characterized in that: include: Placing a liquid adsorbent (20) on the top of the battery cell (12) whose package is to be debonded; A debonding solvent (30) is injected into the tray (11) of the package to be debonded and / or onto the liquid adsorbent (20), and the debonding solvent (30) is allowed to soak the liquid adsorbent (20); wherein the debonding solvent (30) adsorbed on the liquid adsorbent (20) can penetrate the gap between adjacent battery cells (12) to contact the structural adhesive; After the package to be debonded is placed at a preset temperature for a preset time, the structural adhesive is rendered ineffective, thereby obtaining a debonded package, wherein the debonded package comprises the battery cell (12), the tray (11) and the ineffective structural adhesive.

2. The battery pack disassembly method according to claim 1, characterized in that: When the liquid adsorbent (20) is placed on the battery core (12), the projection of the battery core (12) in the vertical direction is located inside the liquid adsorbent (20).

3. The battery pack disassembly method according to claim 1, characterized in that: The degumming agent (30) comprises: The debonding solvent (30) is added to the liquid adsorbing member (20), so that the entire liquid adsorbing member (20) is adsorbed with the debonding solvent (30); The debonding solvent (30) is injected into the gap between the side wall of the tray (11) and the battery cell (12), so that the deposition height of the debonding solvent (30) on the upper surface of the structural adhesive is 5-10 mm.

4. The battery pack disassembly method according to claim 3, characterized in that: The preset temperature is 0-40°C.

5. The battery pack disassembly method according to claim 1, characterized in that: Also includes: The liquid adsorbent (20) is separated from the battery core (12) of the debonding package, and the separated liquid adsorbent (20) is placed on another package to be debonded.

6. The method for disassembling a battery pack according to any one of claims 1 to 5, characterized in that: The liquid adsorbent (20) is a felt, a wool felt, a fiber cotton pad or a sponge pad.

7. The method for disassembling a battery pack according to any one of claims 1 to 5, characterized in that: The debonding solvent (30) is N-methylpyrrolidone, γ-butyrolactone or butyl cellosolve.

8. A disassembly system, applied to the battery pack disassembly method according to any one of claims 1 to 7, characterized in that: include: A placement station (100), wherein the placement station (100) is provided with a debonding auxiliary device, wherein the debonding auxiliary device is used to move the liquid adsorbent (20) so as to place the liquid adsorbent (20) on the battery cell (12) of the package to be debonded; A solvent filling station (200), wherein the solvent filling station (200) is provided with a liquid injection device, and the liquid injection device is used to inject the debonding solvent (30) into the tray (11) of the package to be debonded and / or onto the liquid adsorbent (20); A first transport device is used to transport the to-be-debonded package covered with the liquid adsorbent (20) to the solvent filling station (200).

9. The dissolution system according to claim 8, characterized in that: It also includes a high-temperature static station (300), wherein the temperature of the high-temperature static station (300) is maintained at a preset temperature, so that the inclusion body to be debonded is obtained after being left at the high-temperature static station (300) for a preset time; The first transport device is also used to transport the package to be debonded from the solvent filling station (200) to the high-temperature static station (300).

10. The disintegration system according to claim 9, characterized in that: It also includes a separation station (400), the separation station (400) is also provided with the debonding auxiliary device, and the debonding auxiliary device is also used to clamp and move the liquid adsorbent (20) located on the battery cell (12) to separate the liquid adsorbent (20) from the battery cell (12); Wherein, the first transport device is also used to transport the debonded package to the separation station (400).

11. The disintegration system according to claim 10, characterized in that: It also includes a second transport device, which is used to transport the liquid adsorbent (20) separated by the separation station (400) to the placement station (100) so as to recycle the liquid adsorbent (20).

12. A disintegration auxiliary device, characterized in that: include: A positioning tool (110), wherein the positioning tool (110) is used to be connected to the liquid adsorbent (20); A gripping tool (120) is used to grip the positioning tool (110) and drive the positioning tool (110) to move so that the liquid adsorbent (20) covers the battery core (12) or is separated from the battery core (12).

13. The degumming auxiliary device according to claim 12, characterized in that: The positioning tool (110) comprises: A connecting frame (112), wherein a plurality of fixing components (113) are arranged on the connecting frame (112), and the plurality of fixing components (113) are respectively connected to different parts of the liquid adsorbent (20) so that the shape of the liquid adsorbent (20) remains stable; A positioning plate (111), the positioning plate (111) being connected to a side of the connecting frame (112) facing away from the liquid adsorbent (20); Wherein, the grabbing tool (120) is used to grab the positioning plate (111) and drive the positioning plate (111) to move.

14. The disintegration auxiliary device according to claim 13, characterized in that: Supporting members (114) extending to the outside of the liquid adsorbent (20) are arranged on opposite sides of the connecting frame (112); The positioning tool (110) is connected to the liquid adsorbent (20) in a one-to-one correspondence, and when the liquid adsorbent (20) is stacked, one of the two adjacent connecting frames (112) contacts the supporting member (114) on the other, so that there is a gap between the adjacent liquid adsorbents (20).

15. The degumming auxiliary device according to claim 14, characterized in that: A limiting groove (1141) is provided on the supporting member (114), and a limiting portion is also provided on the connecting frame (112). When at least two of the liquid adsorbents (20) are stacked, the limiting portion of the upper one of the two adjacent connecting frames (112) is inserted into the limiting groove (1141) on the other one.

16. The disintegration auxiliary device according to claim 15, characterized in that: The limiting groove (1141) is closed at one end away from the positioning plate (111), and the top of the limiting groove (1141) and the end of the limiting groove (1141) adjacent to the positioning plate (111) are both open.

17. The disintegration auxiliary device according to claim 13, characterized in that: The fixing assembly (113) comprises: A first fixing plate (1131), the first fixing plate (1131) being connected to the connecting frame (112); A second fixing plate (1132), wherein a connecting column (1134) is provided on the second fixing plate (1132), the second fixing plate (1132) is used to abut against a side of the liquid adsorbent (20) away from the connecting frame (112), and the connecting column (1134) is used to pass through the liquid adsorbent (20) and be connected to the first fixing plate (1131); A third fixing plate (1133), the third fixing plate (1133) being arranged opposite to the second fixing plate (1132), the third fixing plate (1133) being used to cooperate with the second fixing plate (1132) to clamp the liquid adsorbent (20) from two opposite sides of the liquid adsorbent (20), the third fixing plate (1133) being passed through the connecting column (1134) and being slidably connected to the connecting column (1134); An elastic member (1135), wherein the elastic member (1135) is sleeved on the connecting column (1134) and is located between the third fixing plate (1133) and the first fixing plate (1131), and the elastic member (1135) is used to drive the third fixing plate (1133) to press the liquid adsorbent (20) onto the second fixing plate (1132).

18. The disintegration auxiliary device according to claim 17, characterized in that: The connecting column (1134) includes a cylindrical section and a truncated cone section connected to each other, and the end of the cylindrical section facing away from the truncated cone section is connected to the second fixing plate (1132), and the outer diameter of the truncated cone section gradually decreases along the direction from the second fixing plate (1132) to the third fixing plate (1133).

19. The degumming auxiliary device according to claim 17, characterized in that: The fixing assembly (113) further comprises: A limiting member (1136), wherein the limiting member (1136) is provided with a first connecting hole; a first bolt (1137), the first bolt (1137) passing through the first connecting hole and being screwed to the first fixing plate (1131) so as to press the limiting member (1136) onto the first fixing plate (1131); Among them, the end of the connecting column (1134) facing away from the second fixing plate (1132) passes through the first fixing plate (1131) and extends to the side of the first fixing plate (1131) facing away from the third fixing plate (1133), and the end of the connecting column (1134) facing away from the second fixing plate (1132) is provided with a slot, and the limiting member (1136) is provided with a snap-fitting portion that cooperates with the slot, so as to limit the relative position between the connecting column (1134) and the first fixing plate (1131) when the snap-fitting portion is inserted into the slot.

20. The disintegration auxiliary device according to any one of claims 13 to 19, characterized in that: The grabbing tool (120) comprises: handling devices; A frame (121) connected to the transport device; At least one first clamping assembly (122) is disposed on the frame (121), and the first clamping assembly (122) is used to clamp the positioning plate (111); The transport device is used to drive the frame (121) to move, so that the first clamping assembly (122) places the liquid adsorbent (20) on the battery cell (12), or separates the liquid adsorbent (20) from the battery cell (12).

21. The disintegration auxiliary device according to claim 20, characterized in that: The grabbing tool (120) further comprises: a distance measuring sensor (125), the distance measuring sensor (125) being arranged on the frame (121), and the distance measuring sensor (125) being used to obtain a straight-line distance between the positioning plate (111) or the liquid adsorbent (20) and the first clamping assembly (122); A controller is communicatively connected with the transport device, the first clamping assembly (122) and the distance measuring sensor (125), and the controller is used to control the transport device to drive the first clamping assembly (122) to move so as to clamp the positioning tool (110) according to the straight-line distance between the positioning plate (111) or the liquid adsorbent (20) and the grasping tool (120).

22. The degumming auxiliary device according to claim 21, characterized in that: The grabbing tool (120) further comprises a diffuse reflection sensor (127) which is in communication with the controller, and the diffuse reflection sensor (127) is used to detect whether the liquid adsorbent (20) is located below the diffuse reflection sensor (127) when the first clamping assembly (122) is driven by the transport device to move to a position for clamping the positioning tool (110); The controller is also used to determine whether the position of the first clamping component (122) matches the position to be clamped of the positioning tool (110) based on the detection result of the diffuse reflection sensor (127); if not, controlling the transport device to move and adjust the position of the first clamping component (122).

23. The disintegration auxiliary device according to claim 21, characterized in that: The first clamping assembly (122) comprises: Two clamping jaws (1221) arranged opposite to each other, wherein the clamping jaws (1221) are slidably connected to the frame (121); A first driving member, wherein the first driving member is connected to the two clamping jaws (1221) and drives the two clamping jaws (1221) to move towards or away from each other, so as to clamp the positioning plate (111) from two opposite sides of the positioning plate (111), or release the positioning plate (111).

24. The disintegration auxiliary device according to claim 23, characterized in that: The first driving member comprises: A connecting rod (1222), the connecting rod (1222) is rotatably connected to the frame (121), two ends of the connecting rod (1222) are provided with threads with opposite rotation directions, and the two clamping jaws (1221) are respectively threadedly connected to the two ends of the connecting rod (1222); A first motor is in transmission connection with the connecting rod (1222) to drive the connecting rod (1222) to rotate, thereby moving the clamping claw (1221).

25. The disintegration auxiliary device according to claim 23, characterized in that: The clamping jaw (1221) is provided with a supporting portion (1223) extending between the positioning plate (111) and the liquid adsorbent (20), and a ball (1224) is provided on the side of the supporting portion (1223) in contact with the positioning plate (111).

26. The disintegration auxiliary device according to claim 25, characterized in that: The grabbing tool (120) further comprises a first proximity switch (126) which is communicatively connected to the controller, the first proximity switch (126) being arranged on the frame (121), and the first proximity switch (126) being used for contacting with the positioning tool (110) and being triggered when the distance between the clamping claw (1221) and the liquid-conducting adsorption member driven by the handling device is less than a preset value; The controller is also used to control the transport device to stop moving when the first proximity switch (126) is triggered.

27. The disintegration auxiliary device according to claim 25, characterized in that: The gripping tool (120) further comprises a clamping assembly (123) disposed on the frame (121), wherein the clamping assembly (123) is used to press the positioning plate (111) onto the supporting portion (1223) when the clamping jaws (1221) clamp the positioning plate (111).

28. The disintegration auxiliary device according to claim 27, characterized in that: The pressing assembly (123) comprises: A pressing plate (1232), the pressing plate (1232) being used to abut against the positioning plate (111) when the clamping jaws (1221) clamp the positioning plate (111); A second driving member (1231), wherein the second driving member (1231) is disposed on the frame (121), wherein an output end of the second driving member (1231) is connected to the pressing plate (1232), and drives the pressing plate (1232) to move so that the pressing plate (1232) contacts or separates from the positioning plate (111).

29. The disintegration auxiliary device according to claim 28, characterized in that: The gripping tool (120) further comprises a second proximity switch (128) communicatively connected to the controller, the second proximity switch (128) being arranged on one side of the pressing plate (1232), the second proximity switch (128) being used to contact the positioning plate (111) and remain in a triggered state when the clamping claw (1221) clamps the positioning plate (111); The controller is also used to determine whether the liquid adsorbent (20) has fallen according to the state of the second proximity switch (128).

30. The disintegration auxiliary device according to claim 20, characterized in that: The grabbing tool (120) further comprises: at least two second clamping assemblies (124), one second clamping assembly (124) being correspondingly disposed at each end of the positioning plate (111); A third driving member (1243), wherein the third driving member (1243) is connected to the second clamping assembly (124) to drive at least two of the second clamping assemblies (124) to move toward or away from each other to clamp the positioning plate (111) or release the positioning plate (111).

31. The disintegration auxiliary device according to claim 30, characterized in that: The second clamping assembly (124) includes a positioning member (1242) and a second bolt (1241), wherein the positioning member (1242) is connected to the third driving member (1243), the second bolt (1241) passes through the positioning member (1242) and is threadedly connected to the positioning member (1242), and one end of the second bolt (1241) is used to abut against the end of the positioning plate (111) when clamping the positioning plate (111).

32. The disintegration auxiliary device according to claim 31, characterized in that: The third driving member (1243) is a guide rod cylinder, and the piston rod of the guide rod cylinder is connected to the positioning member (1242).

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