Device for removing insulating film and battery recycling equipment

Abstract

The utility model discloses a device for removing an insulating film and battery recovery equipment. The device for removing the insulating film is used for separating the insulating film of a battery cell from a top cover assembly of the battery cell and comprises a workbench, a first cutter assembly and a second cutter assembly, and the workbench is used for bearing the battery cell with the insulating film to be treated; the first cutter assembly comprises a first driving piece and a first hot melting cutter, and the first driving piece is connected with the first hot melting cutter and used for driving the first hot melting cutter to move close to or away from the battery cell in the first direction; when the first hot melting cutter is pressed on the battery cell, two opposite first edges, connected with the top cover assembly, of an insulating film on the battery cell are fused; the second cutter assembly comprises a second driving piece and a second hot melting cutter, and the second driving piece is connected with the second hot melting cutter and used for driving the second hot melting cutter to move close to or away from the battery cell in the second direction; and when the second hot melting cutter is pressed on the battery cell, two opposite second edges, connected with the top cover assembly, of an insulating film on the battery cell are fused.

Description

Technical Field

[0001] The present application relates to the technical field of battery recycling equipment, and in particular to a device for removing an insulating film and a battery recycling equipment. Background Art

[0002] With the widespread use of secondary batteries, during the production process of secondary batteries, for example, after the top cover and the shell are fully welded and before the liquid is injected, defective or bad products with processing quality problems such as substandard welding will be produced, which need to be recycled and disassembled. In the process of recycling defective or bad secondary batteries, the insulating film is usually directly pulled and torn off the top cover to recycle the insulating film.

[0003] However, there are usually multiple hot-melt connection points between the insulating film and the top cover. When pulling the insulating film off the top cover, a large force is required to pull it, which makes the recycling of the insulating film time-consuming and laborious, and the recycling efficiency is poor. Utility Model Content

[0004] The present application discloses a device for removing an insulating film and a battery recycling device, which can save time and effort in recycling the insulating film on a battery cell and effectively improve the recycling efficiency of the insulating film.

[0005] In order to achieve the above-mentioned purpose, in a first aspect, the present application discloses a device for removing an insulating film, which is used to separate the insulating film of a battery cell from a top cover assembly of the battery cell, and the device for removing the insulating film comprises:

[0006] A workbench, the workbench is used to carry the battery cell with the insulating film to be processed;

[0007] a first cutter assembly, the first cutter assembly comprising a first driving member and a first hot melt cutter, the first driving member being connected to the first hot melt cutter and being used to drive the first hot melt cutter to move closer to or away from the battery cell in a first direction, so as to fuse two opposite first edges of the insulating film on the battery cell and the top cover assembly when the first hot melt cutter is crimped onto the battery cell;

[0008] A second tool assembly, the second tool assembly includes a second driving member and a second hot melt tool, the second driving member is connected to the second hot melt tool, and is used to drive the second hot melt tool to move closer to or away from the battery cell along a second direction, so as to fuse the two opposite second edges connecting the insulating film on the battery cell and the top cover assembly when the second hot melt tool is crimped onto the battery cell.

[0009] In this embodiment, a first driving member is connected to the first hot-melt tool to drive the first hot-melt tool to move toward or away from the battery cell in a first direction, so that when the first hot-melt tool is crimped onto the battery cell, two opposite first edges connecting the insulating film on the battery cell and the top cover assembly are melted, and a second driving member is connected to the second hot-melt tool to drive the second hot-melt tool to move toward or away from the battery cell in a second direction, so that when the second hot-melt tool is crimped onto the battery cell, two opposite second edges connecting the insulating film on the battery cell and the top cover assembly are melted, so that the insulating film and the top cover assembly can be separated. Compared with tearing the insulating film from the top cover assembly by pulling, it saves time and effort, and is convenient and quick to operate, effectively improving the processing efficiency of the insulating film, thereby improving the disassembly and recycling efficiency of defective and poor secondary batteries; at the same time, it can also effectively prevent the insulating film from being torn at the position of the hot-melt connection point with the top cover assembly, resulting in a larger area of ​​the insulating film still connected to the top cover assembly, effectively improving the recycling rate of the insulating film, and thus improving the recycling rate of the defective and poor secondary batteries.

[0010] In a possible implementation manner of the first aspect, the battery core has two first side walls opposite to each other along the first direction, and the first edge is located on the first side walls;

[0011] The first hot melt tool comprises a first hot melt tool body, the length of which along the second direction is equal to or greater than the length of the first edge, so that the first edge is melted when the first driving member drives the first hot melt tool body to move and crimp onto the first edge.

[0012] Therefore, the first edge of the insulating film can be melted by only driving the first hot melt tool through the first driving member to move along the first direction close to the battery cell and crimp it on the first side wall of the battery cell, so that the melting trajectory of the first edge by the first hot melt tool is relatively simple, which effectively reduces the difficulty of the melting operation on the first edge and improves the processing efficiency of the insulating film.

[0013] In a possible implementation of the first aspect, the first hot melt blade body includes a first hot melt blade segment and a second hot melt blade segment, the first hot melt blade segment extends along the second direction, the second hot melt blade segment is located on at least one of two opposite sides of the first hot melt blade segment along the second direction, a size of the first hot melt blade segment along a third direction is smaller than a size of the second hot melt blade segment along the third direction, the second hot melt blade segment has a target plane passing through itself, the third direction is a direction perpendicular to both the first direction and the second direction, and the target plane is a plane parallel to both the first direction and the second direction;

[0014] The battery core has two second side walls opposite to each other along the second direction, and the second edge is located on the second side wall;

[0015] The second hot melt tool includes a second hot melt tool body, and the length of the second hot melt tool body along the first direction is equal to or greater than the length of the second edge, so that the second edge can be melted when the second driving member drives the second hot melt tool body to move and crimp on the second edge, and the second hot melt tool body has two ends opposite to each other along the first direction, and the target plane also passes through the ends.

[0016] As a result, the positions of the second hot melt knife body and the second hot melt knife segment along the third direction can be inconsistent within a certain range, reducing the requirements for the relative position relationship of the first hot melt knife and the second hot melt knife along the third direction, thereby greatly reducing the difficulty of installing the first hot melt knife and the second hot melt knife along the third direction.

[0017] In a possible implementation of the first aspect, the total length of the first hot melt knife segment and the second hot melt knife segment along the second direction is equal to the length of the first edge, and the second hot melt knife segment is formed by bending the two ends of the first hot melt knife segment along the second direction along the third direction.

[0018] Therefore, when manufacturing the first hot melt knife body, the second hot melt knife segment can be obtained by bending the two sides of the first hot melt knife segment opposite to each other along the second direction along the third direction. There is no need to consider that the thickness of the second hot melt knife segment must be thicker than the thickness of the first hot melt knife segment, thereby reducing the difficulty of manufacturing the first hot melt knife body and reducing costs.

[0019] In a possible implementation of the first aspect, the first hot melt knife body has a connecting end and a hot melt end opposite to each other along a first direction, the connecting end is connected to the first driving member, the hot melt end is used to melt the first edge when the first hot melt knife is crimped onto the battery core, and the thickness of the hot melt end is smaller than the thickness of the connecting end.

[0020] Thus, the cross section of the hot melt end of the first hot melt blade body for contacting the insulating film can be made smaller, and only a small area of ​​the first hot melt blade body needs to be heated to the fusing temperature of the insulating film, thus saving energy.

[0021] In a possible implementation manner of the first aspect, the first hot melt blade body is made of at least one of tungsten steel, stainless steel, and alloy steel.

[0022] Thus, the first hot melt blade can be effectively prevented from adhering to the insulating film when hot-melting the insulating film, thereby avoiding the influence of the first hot melt blade body on the subsequent hot-melt melting of the insulating film due to the first hot melt blade body adhering to the insulating film.

[0023] In a possible implementation manner of the first aspect, the battery core has two second side walls opposite to each other along the second direction, and the second edge is located on the second side wall;

[0024] The second hot melt knife includes a second hot melt knife body, and the length of the second hot melt knife body along the first direction is equal to or greater than the length of the second edge, so that the second edge is melted when the second driving member drives the second hot melt knife body to move and crimp on the second edge.

[0025] Therefore, the second edge of the insulating film can be melted by only driving the second hot melt tool through the second driving member to move along the second direction close to the battery cell and crimp it on the second side wall of the battery cell. This makes the melting trajectory of the second edge by the second hot melt tool relatively simple, effectively reduces the difficulty of the melting operation on the second edge, and improves the processing efficiency of the insulating film.

[0026] In a possible implementation of the first aspect, the device for removing the insulating film further comprises a fixing fixture disposed on the workbench, the fixing fixture having a receiving groove, the receiving groove being used to receive the battery cell, the bottom wall of the receiving groove being used to support the end surface of the battery cell close to the top cover assembly, and the side wall of the receiving groove facing the first hot melt tool and the side wall facing the second hot melt tool are both provided with avoidance openings;

[0027] Clamping assemblies are respectively arranged on two side walls of the accommodating groove that are opposite to each other along the second direction or on two side walls of the accommodating groove that are opposite to each other along the first direction to clamp the battery cell in the accommodating groove.

[0028] In this way, the battery cell can be supported on the workbench more firmly and stably, so that when the first hot melt tool and the second hot melt tool melt the insulating film, the battery cell is not prone to shaking or moving, effectively improving the melting accuracy and stability of the insulating film by the first hot melt tool and the second hot melt tool.

[0029] In a possible implementation of the first aspect, the number of the first hot melt cutters is two, and the two first hot melt cutters are respectively located on two sides of the battery core along the first direction;

[0030] The number of the second hot-melt cutters is two, and the two second hot-melt cutters are respectively located at two sides of the battery core along the second direction.

[0031] Thus, the first driving member can drive the two first hot melt tools to fuse the two opposite first edges along the first direction, and the second driving member can drive the two second hot melt tools to fuse the two opposite second edges along the second direction, thereby simplifying the moving path of the first hot melt tool and the moving path of the second hot melt tool, making the fusing of the first edge and the second edge easy to operate and improving the processing efficiency of the insulating film.

[0032] In a possible implementation of the first aspect, the device for removing the insulating film has a loading station and an unloading station, and the device for removing the insulating film further includes:

[0033] A transport assembly, the transport assembly comprising a transport drive module and a pick-up module, the transport drive module being in transmission connection with the pick-up module and being used to drive the pick-up module to move between the loading station and the workbench, and / or being used to drive the pick-up module to move between the workbench and the unloading station;

[0034] A conveying component is used to convey the battery cell with the insulating film to be processed to the loading station.

[0035] As a result, the efficiency of placing the battery cells from the loading station onto the workbench, the efficiency of transporting the fused insulating film from the workbench to the unloading station, and the efficiency of transporting the battery cells with the insulating film removed from the workbench to the unloading station are effectively improved, thereby effectively improving the processing efficiency of the insulating film.

[0036] In a possible implementation of the first aspect, the picking module includes a first picking member and a second picking member, and the transport driving module is respectively connected to the first picking member and the second picking member in a transmission manner, and is used to drive the first picking member to move between the loading station and the workbench, and is used to drive the second picking member to move between the workbench and the unloading station;

[0037] The unloading station includes an insulating film recovery station and a battery cell disassembly station.

[0038] Therefore, the battery cells with the insulating film to be processed can be transported by the first picking member and the second picking member respectively, and the fused insulating film and the battery cells with the insulating film removed can be transported, which further improves the processing efficiency of the insulating film.

[0039] In a possible implementation of the first aspect, there is a first spacing along the horizontal direction between the loading station and the workbench, there is a second spacing along the horizontal direction between the first picking member and the second picking member and between the workbench and the battery cell disassembly station, the first spacing is the same as the second spacing, and the transport drive module is simultaneously connected to the first picking member and the second picking member for driving the first picking member to move between the loading station and the workbench, and simultaneously driving the second picking member to move between the workbench and the battery cell disassembly station.

[0040] Thus, the transport driving module can simultaneously drive the first picking member and the second picking member to move, that is, one driving member can simultaneously drive the first picking member and the second picking member to move, which effectively simplifies the structure of the transport driving module and reduces the cost.

[0041] In a second aspect, the present application further discloses a battery recycling device, comprising the device for removing the insulating film as described in any one of the first aspects.

[0042] In this embodiment, the device for removing the insulating film in the battery recycling equipment is the device for removing the insulating film described in the first aspect above, so the device for removing the insulating film in the first aspect has the technical effect of the device for removing the insulating film in the first aspect above.

[0043] Compared with the prior art, the beneficial effects of this application are:

[0044] In the present application, a first driving member is connected to the first hot melt tool and is used to drive the first hot melt tool to move closer to or away from the battery cell in a first direction, so that when the first hot melt tool is crimped onto the battery cell, two opposite first edges connecting the insulating film on the battery cell and the top cover assembly are melted, and a second driving member is connected to the second hot melt tool and is used to drive the second hot melt tool to move closer to or away from the battery cell in a second direction, so that when the second hot melt tool is crimped onto the battery cell, two opposite second edges connecting the insulating film on the battery cell and the top cover assembly are melted, that is, The insulating film can be separated from the top cover assembly, which saves time and effort compared to tearing the insulating film from the top cover assembly by pulling, and is convenient and quick to operate, effectively improving the processing efficiency of the insulating film, thereby improving the disassembly and recycling efficiency of defective and poor secondary batteries; at the same time, it can also effectively prevent the insulating film from being torn at the position of the hot-melt connection point with the top cover assembly, resulting in a large area of ​​the insulating film still being connected to the top cover assembly, effectively improving the recovery rate of the insulating film, and then improving the recovery rate of the defective and poor secondary batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0046] Figure 1 is a three-dimensional diagram of a battery cell with an insulating film to be processed provided in an embodiment of the present application;

[0047] Figure 2 is a three-dimensional diagram of a device for removing an insulating film provided in an embodiment of the present application;

[0048] Figure 3 It is a three-dimensional diagram of a combination of a workbench, a first tool assembly, a second tool assembly, a fixing assembly and a clamping assembly provided in an embodiment of the present application;

[0049] Figure 4 is a three-dimensional diagram of a first tool assembly or a second tool assembly provided in an embodiment of the present application;

[0050] Figure 5 It is a front view of a first hot melt knife body provided in an embodiment of the present application;

[0051] Figure 6 It is a front view of another first hot melt knife body provided in an embodiment of the present application;

[0052] Figure 7 yes Figure 4 The enlarged image at position B in the middle;

[0053] Figure 8 yes Figure 3 AA section view in;

[0054] Fig. 9 is a three-dimensional diagram of a battery cell provided in an embodiment of the present application when placed in a fixed assembly;

[0055] Fig.10 It is a three-dimensional diagram of a combination of a workbench, a fixing assembly and a clamping assembly provided in an embodiment of the present application.

[0056] Description of reference numerals:

[0057] 1-working table; 2-first tool assembly; 21-first driving member; 22-first hot melt tool; 221-first hot melt tool body; 2211-first hot melt tool segment; 2212-second hot melt tool segment; 2213-connecting end; 2214-hot melt end; 222-first tool holder; 3-second tool assembly; 31-second driving member; 32-second hot melt tool; 321-second hot melt tool body; 322-second tool holder; 4-fixing fixture; 41-accommodating groove; 42-avoidance opening; 5-clamping assembly; 6-transportation assembly; 61-transportation drive module; 62-pickup module; 621-first pickup member; 622-second pickup member; 7-transmission assembly;

[0058] 10- Device for removing insulating film;

[0059] 20 - battery cell; 210 - insulation film; 220 - top cover assembly; 230 - winding core; 240 - first side wall; 250 - second side wall;

[0060] a1-first edge; a2-second edge. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0062] In this application, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0064] The present application discloses a device for removing an insulating film and a battery recycling device, which can save time and effort in recycling the insulating film on a battery cell and effectively improve the recycling efficiency of the insulating film.

[0065] The technical solution of the present application will be further described below in conjunction with specific embodiments and drawings.

[0066] During the production process of secondary batteries, the core in the battery cell is electrically connected to the top cover assembly and is wrapped with an insulating film, which is then placed in the battery cell casing to insulate the core. The top cover assembly may include a stacked top cover plate and a lower plastic. When the core is electrically connected to the top cover assembly, the insulating film may be hot-melt-bonded to the lower plastic in the top cover assembly at multiple positions, so that multiple hot-melt connection points are formed between the insulating film and the top cover assembly, such as eight hot-melt connection points, so that the connection between the insulating film and the top cover assembly can be relatively firm.

[0067] Therefore, when disassembling and recycling the defective or bad products generated in the secondary electricity production process, it is necessary to separate the insulating film from the top cover assembly to recycle the insulating film and facilitate the subsequent disassembly and recycling of the top cover assembly and the winding core. However, when directly pulling and tearing the insulating film off the top cover assembly, a large force is required to tear the insulating film off the top cover assembly, resulting in time-consuming and labor-intensive recycling of the insulating film and poor recycling efficiency.

[0068] Based on this, this embodiment provides a device for removing an insulating film, such as Figure 1-Figure 4 As shown, the device 10 for removing the insulating film 210 of the battery cell 20 from the top cover assembly 220 of the battery cell 20 includes a workbench 1, a first tool assembly 2, and a second tool assembly 3. The workbench 1 is used to carry the battery cell 20 with the insulating film 210 to be processed; the first tool assembly 2 includes a first driving member 21 and a first hot melt tool 22, the first driving member 21 is connected to the first hot melt tool 22, and is used to drive the first hot melt tool 22 to move along a first direction (such as Figure 2 The direction indicated by x1 in the figure) moves closer to or away from the battery core 20, so that when the first hot melt tool 22 is crimped onto the battery core 20, the two opposite first edges (such as Figure 1 The second tool assembly 3 includes a second drive member 31 and a second hot melt tool 32, the second drive member 31 is connected to the second hot melt tool 32, and is used to drive the second hot melt tool 32 along the second direction (such as Figure 2 The direction indicated by x2 in the figure) moves closer to or away from the battery core 20, so that when the second hot melt cutter 32 is crimped onto the battery core 20, the insulating film 210 on the battery core 20 is connected to the two opposite second edges (such as Figure 1 The fuse is blown (shown by the dotted line a2).

[0069] In this embodiment, the first driving member 21 is connected to the first hot melt tool 22, and is used to drive the first hot melt tool 22 to move closer to or away from the battery cell 20 in a first direction, so that when the first hot melt tool 22 is crimped onto the battery cell 20, the two opposite first edges of the insulating film 210 on the battery cell 20 and the top cover assembly 220 are fused, and the second driving member 31 is connected to the second hot melt tool 32, and is used to drive the second hot melt tool 32 to move closer to or away from the battery cell 20 in a second direction, so that when the second hot melt tool 32 is crimped onto the battery cell 20, the two opposite second edges of the insulating film 210 on the battery cell 20 and the top cover assembly 220 are fused. The insulating film 210 and the top cover assembly 220 can be separated along the fuse. Compared with tearing the insulating film 210 and the top cover assembly 220 apart by pulling, it saves time and effort, and is convenient and quick to operate, effectively improving the processing efficiency of the insulating film 210, thereby improving the disassembly and recycling efficiency of defective and poor secondary batteries; at the same time, it can also effectively prevent the insulating film 210 from being torn at the position of the hot melt connection point with the top cover assembly 220, resulting in a larger area of ​​the insulating film 210 still connected to the top cover assembly 220, effectively improving the recovery rate of the insulating film 210, and then improving the recovery rate of defective and poor secondary batteries.

[0070] The insulating film 210 may be a polyester film or a polyolefin film, etc., which is not limited here.

[0071] The above-mentioned workbench 1 is used to carry the battery cell 20 with the insulating film 210 to be processed. When the insulating film 210 is processed on the battery cell 20 with the outer shell removed, the battery cell 20 with the insulating film 210 to be processed can be placed and fixed on the workbench 1 to facilitate the first hot melt tool 22 and the second hot melt tool 32 to fuse the insulating film 210.

[0072] It should be noted that the device 10 for removing the insulating film is used to separate the insulating film 210 of the battery cell 20 from the top cover assembly 220 of the battery cell 20, and is to remove the insulating film 210 of the battery cell 20 from which the shell has been removed. It should be understood that the battery cell 20 may include a top cover assembly 220, a winding core 230 electrically connected to the top cover, and an insulating film 210 wrapped around the surface of the winding core 230.

[0073] It should also be noted that when the first hot melt tool 22 is crimped onto the battery cell 20, the two opposite first edges connecting the insulating film 210 on the battery cell 20 and the top cover assembly 220 are melted, which means that after the first hot melt tool 22 contacts the insulating film 210 on the battery cell 20, the first hot melt tool 22 needs to continue to move closer to the battery cell 20, such as the first hot melt tool 22 can continue to move 1mm to 2mm, so that the first hot melt tool 22 can extend into the insulating film 210, to ensure that the first hot melt tool 22 can melt the first edge of the insulating film 210.

[0074] The first driving member 21 is connected to the first hot melt cutter 22 by directly connecting the driving end of the first driving member 21 to the first hot melt cutter 22, or by connecting the driving end of the first driving member 21 to the first hot melt cutter 22 via a connecting member such as a flange, a connecting plate or a connecting block, which is not limited here. The connection method between the second driving member 31 and the second hot melt cutter 32 can be roughly the same as the connection method between the first driving member 21 and the first hot melt cutter 22, which will not be repeated here.

[0075] In addition, the two relative first edges where the insulating film 210 on the above-mentioned battery cell 20 is connected to the top cover assembly 220, and the two relative second edges where the insulating film 210 on the battery cell 20 is connected to the top cover assembly 220 both refer to the position where the insulating film 210 is close to the lower plastic in the top cover assembly 220, such as the position where the portion of the insulating film 210 located on the large surface of the battery cell 20 is close to the lower plastic in the top cover assembly 220, and the position where the portion of the insulating film 210 located on the other two side surfaces of the battery cell 20 that are perpendicular to the top cover plate in the top cover assembly 220 is close to the lower plastic in the top cover assembly 220, and the first edge is connected end to end with the second edge, so that after the first hot melt tool 22 melts the first edge and the second hot melt tool 32 melts the second edge, the insulating film 210 can be separated from the top cover assembly 220.

[0076] The first driving member 21 drives the first hot melt cutter 22 to move close to the battery cell 20 along the first direction to cut off the two opposite first edges connecting the insulating film 210 and the top cover assembly 220. The first hot melt cutter 22 may have multiple fusing paths. In one possible fusing path of the first hot melt cutter 22, the first driving member 21 may drive the first hot melt cutter 22 to move from the middle of the first edge to both ends to achieve fusing of the first edge. For example, the first driving member 21 may first drive the first hot melt cutter 22 to move close to the battery cell 20 along the first direction to fuse the middle part of the first edge, then the first driving member 21 drives the first hot melt cutter 22 to move away from the battery cell 20 along the first direction, then drives the first hot melt cutter 22 to move toward one of the two ends of the first edge along the second direction, then the first driving member 21 drives the first hot melt cutter 22 to move close to the battery cell 20 along the first direction to fuse the part close to the end of the first edge, and so on, until the first edge is fused.

[0077] In another possible fusing path of the first hot melt tool 22, as shown in FIG. Figure 1-Figure 4As shown, the battery cell 20 has two first side walls 240 opposite to each other along a first direction, and the first edge is located on the first side wall 240; the first hot melt tool 22 includes a first hot melt tool body 221, and the length of the first hot melt tool body 221 along the second direction is equal to or greater than the length of the first edge, so as to melt the first edge when the first driving member 21 drives the first hot melt tool body 221 to move and crimp on the first edge.

[0078] Therefore, the first edge of the insulating film 210 can be melted by only driving the first hot melt tool 22 to move along the first direction close to the battery cell 20 through the first driving member 21 and crimping it onto the first side wall 240 of the battery cell 20, so that the melting trajectory of the first hot melt tool 22 on the first edge is relatively simple, which effectively reduces the difficulty of the first driving member 21 driving the first hot melt tool 22 to melt the first edge, and can effectively save the cutting time of the first hot melt tool 22 on the first edge, thereby improving the processing efficiency of the insulating film 210.

[0079] The length of the first hot melt blade 221 along the second direction is equal to or greater than the length of the first edge. It can be that the length of the first hot melt blade 221 along the second direction is equal to the length of the first edge, or it can be that the length of the first hot melt blade 221 along the second direction is greater than the length of the first edge, which is not limited here.

[0080] It is understandable that the above-mentioned second hot melt cutter 32 may have multiple fusing paths. In a possible fusing path, the second driving member 31 may drive the second hot melt cutter 32 to move from the middle position of the second edge to both ends respectively to achieve fusing of the second edge.

[0081] In another fusing track of the second tool, such as Figure 1-Figure 4 As shown, the battery cell 20 has two second side walls 250 opposite to each other along the second direction, and the second edge is located on the second side wall 250; the second hot melt knife 32 includes a second hot melt knife body 321, and the length of the second hot melt knife body 321 along the first direction is equal to or greater than the length of the second edge, so that the second edge can be melted when the second driving member 31 drives the second hot melt knife body 321 to move and crimp on the second edge.

[0082] Therefore, the second edge of the insulating film 210 can be melted by only driving the second hot melt tool 32 to move along the second direction close to the battery cell 20 through the second driving member 31 and crimping it onto the second side wall 250 of the battery cell 20, so that the melting trajectory of the second edge by the second hot melt tool 32 is relatively simple, which effectively reduces the difficulty of the second driving member 31 driving the second hot melt tool 32 to melt the second edge, and can effectively save the cutting time of the second hot melt tool 32 on the second edge, further improving the processing efficiency of the insulating film 210.

[0083] It should be noted that the above-mentioned fusing of the first edge by the first hot melt tool 22 and the fusing of the second edge by the second hot melt tool 32 may be that the length of the first hot melt tool body 221 of the first hot melt tool 22 along the second direction is equal to or greater than the length of the first edge, so that the first edge is melted when the first driving member 21 drives the first hot melt tool 22 to move close to the battery cell 20 along the first direction and is crimped onto the battery cell 20, and the length of the second hot melt tool body 321 of the second hot melt tool 32 along the first direction may be less than the length of the second edge, and the second hot melt tool body 321 may first melt part of the second edge, and then move along the first direction to fuse another part of the second edge until the second edge is completely melted; it may also be that the length of the second hot melt tool body 321 of the second hot melt tool 32 along the first direction is equal to or greater than the length of the second edge, so that when the second driving member 31 drives the second hot melt tool 32 to move close to the battery cell 2 0 moves and is crimped onto the battery cell 20 to melt the second edge, and the length of the first hot melt tool 22 along the second direction is less than the length of the first edge, so that when the first hot melt tool body 221 melts the first edge, the first hot melt tool body 221 can first melt part of the first edge, and then move along the second direction to melt another part of the first edge until the first edge is melted; it can also be that the length of the first hot melt tool body 221 of the first hot melt tool 22 along the second direction is equal to or greater than the length of the first edge, so that when the first driving member 21 drives the first hot melt tool 22 to move along the first direction close to the battery cell 20 and crimped onto the battery cell 20, the first edge is melted, and the length of the second hot melt tool body 321 of the second hot melt tool along the first direction is equal to or greater than the length of the second edge, so that when the second driving member 31 drives the second hot melt tool 32 to move along the second direction close to the battery cell 20 and crimped onto the battery cell 20, the second edge is melted, and this is not limited here.

[0084] The first driving member 21 can be any one of a cylinder, an electric cylinder, a combination of a motor and a gear, a rack, etc., which is not limited here. The second driving member 31 can have a substantially similar structure to the first driving member 21, which will not be described in detail here.

[0085] Alternatively, if Figure 5 and Figure 6 As shown, the first hot melt blade body 221 includes a first hot melt blade segment 2211 and a second hot melt blade segment 2212. The first hot melt blade segment 2211 extends along the second direction, and the second hot melt blade segment 2212 is located on two opposite sides of the first hot melt blade segment 2211 along the second direction. The size of the first hot melt blade segment 2211 along the third direction is smaller than that of the second hot melt blade segment 2212 along the third direction (such as Figure 5The second hot melt knife segment 2212 has a target plane passing through itself, the third direction is a direction perpendicular to both the first direction and the second direction, and the target plane is a plane parallel to both the first direction and the second direction; the battery cell 20 has two second side walls 250 opposite to each other along the second direction, and the second edge is located on the second side wall 250; the second hot melt knife 32 includes a second hot melt knife body 321, and the length of the second hot melt knife body 321 along the first direction is equal to or greater than the length of the second edge, so that the second edge can be melted when the second driving member 31 drives the second hot melt knife body 321 to move and be crimped on the second edge, and the second hot melt knife body 321 has two ends opposite to each other along the first direction, and the target plane also passes through the ends.

[0086] Thus, the size of the hot melt track formed by the hot melt insulating film 210 of the second hot melt knife segment 2212 along the third direction can be wider. Compared with the first hot melt knife body 221 and the second hot melt knife body 321, both of which are in the shape of a straight line and have a uniform thickness of the part used for the hot melt insulating film 210, the position of the hot melt track formed by the hot melt insulating film 210 of the second hot melt knife body 321 along the third direction can be within the width range of the hot melt track formed by the second hot melt knife segment 2212, that is, it is only necessary to connect the hot melt track formed by the second hot melt knife body 321 with the hot melt track formed by the second hot melt knife segment 2212, so that the positions of the second hot melt knife body 321 and the second hot melt knife segment 2212 along the third direction can be inconsistent within a certain range, thereby reducing the requirements for the relative position relationship of the first hot melt knife 22 and the second hot melt knife 32 along the third direction, thereby greatly reducing the difficulty of installing the first hot melt knife 22 and the second hot melt knife 32 along the third direction.

[0087] Exemplarily, when the surface of the workbench 1 used to support the battery cell 20 is a horizontal surface, the first direction and the second direction are both horizontal directions, and the third direction is a vertical direction, the second hot melt knife segment 2212 and the second hot melt knife body 321 can be located at different heights relative to the surface of the workbench 1 supporting the battery cell 20, and the hot melt track formed by the hot melt insulating film 210 of the second hot melt knife body 321 is connected to the hot melt track formed by the hot melt insulating film 210 of the second hot melt knife segment 2212, so that the first hot melt knife body 221 and the second hot melt knife body 321 can be located at different heights relative to the surface of the workbench 1 supporting the battery cell 20, thereby effectively reducing the difficulty of installing the first hot melt knife 22 and the second hot melt knife 32 along the height direction relative to the surface of the workbench 1 supporting the battery cell 20.

[0088] It can be understood that the two ends of the fuse track formed by the first hot melt blade body 221 and the hot melt insulating film 210 along the second direction may overlap with the two ends of the fuse track formed by the second hot melt blade body 321 and the hot melt insulating film 210 along the first direction, or the edges of the fuse tracks are just connected.

[0089] The first direction and the second direction may be two horizontal directions perpendicular to each other, and the third direction may be a vertical direction. In this case, the battery cell 20 may be placed vertically on the workbench 1 .

[0090] In addition, the first hot melt blade 221 may have multiple implementations. In one possible implementation, Figure 5 As shown, the first hot melt knife body 221 extends along the second direction, and the thickness of the first hot melt knife body 221 gradually thickens from the middle to both ends along the second direction, so that the size of the second hot melt knife segment 2212 along the third direction is larger than the size of the first hot melt knife segment 2211 along the third direction. At the same time, the structure of the first hot melt knife body 221 can be made simpler and easier to implement.

[0091] In another implementation of the first hot melt blade 221, as Figure 6 and Figure 7 As shown, the total length of the first hot melt knife segment 2211 and the second hot melt knife segment 2212 along the second direction is equal to the length of the first edge, and the second hot melt knife segment 2212 is formed by bending the two ends of the first hot melt knife segment 2211 along the second direction along the third direction.

[0092] Therefore, when manufacturing the first hot melt knife body 221, the second hot melt knife segment 2212 can be obtained by bending the two sides of the first hot melt knife segment 2211 opposite to each other along the second direction along the third direction. There is no need to consider that the thickness of the second hot melt knife segment 2212 must be thicker than the thickness of the first hot melt knife segment 2211, thereby reducing the difficulty of manufacturing the first hot melt knife body 221 and reducing the cost.

[0093] Furthermore, if the thickness of the end portions of the first hot melt blade segment 2211 and the second hot melt blade segment 2212 used for hot-melt insulating film 210 are substantially the same, the weight of the first hot melt blade body 221 can be reduced, thereby reducing the cost.

[0094] Among them, the second hot melt knife segment 2212 is formed by bending the two ends of the first hot melt knife segment 2211 along the second direction along the third direction respectively. It can be understood that the two ends of the first hot melt knife segment 2211 along the second direction are roughly bent along the third direction to form the second hot melt knife segment 2212. For example, the bending angle between the first hot melt knife segment 2211 and the second hot melt knife segment 2212 can be any angle of 90°, 120°, 145°, etc., which is not limited here.

[0095] Preferably, the bending angle between the first hot melt knife segment 2211 and the second hot melt knife segment 2212 is 90°, so that the fuse track formed by the second hot melt knife segment 2212 can have a longer length in the third direction, thereby further reducing the difficulty of installing the first hot melt knife 22 and the second hot melt knife 32.

[0096] The structure of the second hot melt blade body 321 may be substantially the same as that of the first hot melt blade body 221 , and details may be referred to above, which will not be described again.

[0097] Alternatively, if Figure 4 and Figure 7 As shown, the first hot melt knife body 221 has a connecting end 2213 and a hot melt end 2214 opposite to each other along a first direction, the connecting end 2213 is connected to the first driving member 21, and the hot melt end 2214 is used to fuse the first edge when the first hot melt knife 22 is crimped onto the battery cell 20, and the thickness of the hot melt end 2214 is less than the thickness of the connecting end 2213.

[0098] Thus, the cross-section of the hot melt end 2214 of the first hot melt blade 221 for contacting the insulating film 210 can be made smaller. On the one hand, only a small area of ​​the first hot melt blade 221 needs to be heated to the melting temperature of the insulating film 210, thereby saving energy. On the other hand, the first hot melt blade 221 can have a smaller contact area with the insulating film 210 while melting the hot melt insulating film 210, thereby preventing the insulating film 210 from adhering to the first hot melt blade 221, thereby preventing the insulating film 210 from adhering to the first hot melt blade 221 and affecting the subsequent hot melting of the insulating film 210 by the first hot melt.

[0099] Among them, the thickness of the hot melt end 2214 of the first hot melt blade body 221 is less than the thickness of the connecting end 2213, and the thickness of the first hot melt blade body 221 gradually decreases from the connecting end 2213 to the hot melt end 2214, that is, the cross-sectional shape of the first hot melt blade body 221 may be a triangle or a trapezoid; or, the thickness of the connecting end 2213 of the first hot melt blade body 221 is relatively uniform, the thickness of the hot melt end 2214 is less than the thickness of the connecting end 2213, and the thickness of the hot melt end 2214 gradually thickens from the hot melt end 2214 to the connecting end 2213 to the thickness of the connecting end 2213, that is, the cross-sectional shape of the first hot melt blade body 221 may be a combination of a trapezoid and a rectangle, or a combination of a triangle and a rectangle.

[0100] Optionally, the first hot melt blade body 221 is made of at least one of tungsten steel, stainless steel, and alloy steel.

[0101] Therefore, the first hot melt blade 221 can be effectively prevented from adhering to the insulating film 210 when hot-melting the insulating film 210 , thereby avoiding the first hot melt blade 221 adhering to the insulating film 210 and affecting the subsequent hot-melting of the insulating film 210 by the first hot melt blade 221 .

[0102] Moreover, the material of the first hot melt blade body 221 is at least one of tungsten steel, stainless steel, and alloy steel, so that the first hot melt blade body 221 has the advantages of good thermal conductivity, high temperature resistance, and high mechanical strength. Therefore, the first hot melt blade body 221 can reach a higher temperature by passing lower electric energy, saving energy, and also allowing the first hot melt blade body 221 to withstand greater pressure, so that the first hot melt blade body 221 is not easily damaged by collision.

[0103] Optionally, the first hot melt knife 22 may also include a first knife holder 222, and the first driving member 21 is connected to the first hot melt knife body 221 through the first knife holder 222, and the first knife holder 222 can be detachably connected to the first hot melt knife body 221, which facilitates the disassembly and assembly between the first hot melt knife body 221 and the first knife holder 222, so that the first hot melt knife body 221 can be selected according to the size and model of the battery cell 20, so that the device 10 for removing the insulating film can process the insulating film 210 on battery cells 20 of different sizes and models.

[0104] Of course, the second hot melt knife 32 may also include a second knife holder 322, and the second driving member 31 can be connected to the second hot melt knife body 321 through the second knife holder 322, and the second knife holder 322 can be detachably connected to the second hot melt knife body 321, which facilitates the disassembly and assembly between the second hot melt knife body 321 and the second knife holder 322, so that the second hot melt knife body 321 can be selected according to the size and model of the battery cell 20, so that the device 10 for removing the insulating film can process the insulating film 210 of battery cells 20 of different sizes and models.

[0105] Regarding the number of the above-mentioned first hot melt cutters 22, in some embodiments, the number of the first hot melt cutter 22 may be one, and the first driving member 21 may drive the first hot melt cutter 22 to move along the first direction, firstly to fuse one of the two relative first edges connecting the insulating film 210 on the battery cell 20 and the top cover assembly 220, and then the first driving member 21 drives the first hot melt cutter 22 to move to the other first side wall 240 and move along the first direction, to fuse the other of the two relative first edges, thereby reducing the number of the first hot melt cutters 22 and reducing the cost.

[0106] In some other embodiments, the number of the first hot melt cutters 22 is two, and the two first hot melt cutters 22 are respectively located on two sides of the battery core 20 along the first direction.

[0107] Thus, the first driving member 21 can drive the two first hot melt tools 22 to fuse the two opposite first edges along the first direction, thereby simplifying the moving path of the first hot melt tools 22, making the fusing of the first edges easy to operate and improving the processing efficiency of the insulating film 210.

[0108] In addition, when there are two first driving members 21, and the two first driving members 21 respectively drive the two first hot melt knives 22 to move along the first direction, the two first hot melt knives 22 can simultaneously fuse two opposite first edges, further improving the processing efficiency of the insulating film 210.

[0109] Likewise, the number of the second hot melt cutters 32 may be one or two, which is not limited herein.

[0110] When there are two second hot melt cutters 32, the two second hot melt cutters 32 are respectively located on both sides of the battery core 20 along the second direction. Thus, the second driving member 31 can drive the two second hot melt cutters 32 to fuse two opposite second edges along the second direction, simplifying the moving path of the second hot melt cutters 32, making it easy to fuse the second edges, and improving the processing efficiency of the insulating film 210.

[0111] The number of the second driving members 31 may also be two, and the two second driving members 31 respectively drive the two second hot melt knives 32 to move along the second direction, so that the two second hot melt knives 32 simultaneously fuse the two opposite second edges, further improving the processing efficiency of the insulating film 210.

[0112] It should be understood that the number of the first hot melt cutter 22 and the second hot melt cutter 32 may be one or two, or one may be one and the other may be two, which is not limited here.

[0113] In some embodiments, Figure 3 , Figure 8-Figure 10 As shown, the insulating film 210 processing device also includes a fixing fixture 4 arranged on the workbench 1, and the fixing fixture 4 has a receiving groove 41, and the receiving groove 41 is used to receive the battery cell 20, and the bottom wall of the receiving groove 41 is used to support the end face of the battery cell 20 close to the top cover assembly 220, and the side wall of the receiving groove 41 facing the first hot melt tool 22 and the side wall facing the second hot melt tool 32 are provided with avoidance openings 42; clamping assemblies 5 are respectively provided on the two side walls of the receiving groove 41 opposite to each other along the second direction or on the two side walls of the receiving groove 41 opposite to each other along the first direction to clamp the battery cell 20 located in the receiving groove 41.

[0114] In this way, the battery cell 20 can be supported on the workbench 1 more firmly and stably, so that when the first hot melt tool 22 and the second hot melt tool 32 melt the insulating film 210, the battery cell 20 is not prone to shaking or moving, thereby effectively improving the fusing accuracy and stability of the insulating film 210 by the first hot melt tool 22 and the second hot melt tool 32.

[0115] Moreover, the receiving groove 41 can also play a certain positioning role for the battery cell 20 placed on the workbench 1, so that when placing the battery cell 20, the battery cell 20 with the insulating film 210 to be processed can be directly placed in the receiving groove 41 of the fixing fixture 4. The operation is simple and quick, which improves the processing efficiency of the insulating film 210.

[0116] Among them, the clamping assembly 5 may include a clamping cylinder and a clamping plate arranged on the piston rod of the clamping cylinder, and when the clamping assembly 5 is arranged on two side walls of the accommodating groove 41 opposite to each other along the first direction, the piston rod of the clamping cylinder extends along the first direction, and when the clamping assembly 5 is arranged on two side walls of the accommodating groove 41 opposite to each other along the second direction, the piston rod of the clamping cylinder extends along the second direction. The structure is simple and easy to implement.

[0117] Of course, the above-mentioned clamping assembly 5 may also include a clamping cylinder and a clamping claw arranged on the piston rod of the clamping cylinder, and when the clamping assembly 5 is arranged on the two side walls of the accommodating groove 41 opposite to each other along the first direction, the two clamping claws of the clamping claw are arranged relatively along the second direction to clamp or loosen the two side walls of the battery cell 20 opposite to each other along the second direction. When the clamping assembly 5 is arranged on the two side walls of the accommodating groove 41 opposite to each other along the second direction, the two clamping claws of the clamping claw are arranged relatively along the first direction to clamp or loosen the two side walls of the battery cell 20 opposite to each other along the first direction, so that the clamping assembly 5 can clamp the battery cell 20 more firmly and stably.

[0118] In some embodiments, Figure 2 As shown, the insulating film 210 processing device has a loading station (not shown in the figure) and an unloading station (not shown in the figure), and the insulating film 210 processing device also includes a transport component 6 and a transmission component, wherein the transport component 6 includes a transport drive module 61 and a picking module 62, the transport drive module 61 is transmission-connected to the picking module 62, and is used to drive the picking module 62 to move between the loading station and the workbench 1, and / or, is used to drive the picking module 62 to move between the workbench 1 and the unloading station; the transmission component is used to transport the battery cells 20 of the insulating film 210 to be processed to the loading station.

[0119] As a result, the efficiency of placing the battery cell 20 from the loading station onto the workbench 1, the efficiency of transporting the fused insulating film 210 from the workbench 1 to the unloading station, and the efficiency of transporting the battery cell 20 with the insulating film 210 removed from the workbench 1 to the unloading station are effectively improved, thereby effectively improving the processing efficiency of the insulating film 210.

[0120] Furthermore, compared with manually transporting the battery cells 20 with the insulating film 210 to be processed to the loading station, the transportation efficiency of the battery cells 20 with the insulating film 210 to be processed can be effectively improved, thereby further improving the processing efficiency of the insulating film 210 .

[0121] The transmission component may be any one of a belt conveyor, a roller conveyor, a mesh belt conveyor, etc., and is not limited here.

[0122] In addition, the transport drive module 61 is used to drive the picking module 62 to move between the loading station and the workbench 1, and / or to drive the picking module 62 to move between the workbench 1 and the unloading station. The transport drive module 61 can drive the picking module 62 to move between the loading station and the workbench 1; or the transport drive module 61 drives the picking module 62 to move between the workbench 1 and the unloading station; or the transport drive module 61 drives the picking module 62 to move between the loading station and the workbench 1, and drives the picking module 62 to move between the workbench 1 and the unloading station.

[0123] The above-mentioned picking module 62 can have multiple implementation methods. In one possible implementation method, the picking module 62 may include a picking member, and the transport drive module 61 is connected to the picking member to drive the picking member to move between the loading station and the workbench 1, and / or to drive the picking member to move between the workbench 1 and the unloading station.

[0124] In another possible implementation, Figure 2 As shown, the picking module 62 includes a first picking member 621 and a second picking member 622, and the transport driving module 61 is respectively connected to the first picking member 621 and the second picking member 622 for driving the first picking member 621 to move between the loading station and the workbench 1, and for driving the second picking member 622 to move between the workbench 1 and the unloading station; the unloading station includes an insulating film 210 recovery station and a battery cell disassembly station.

[0125] Thus, the battery cells 20 with the insulating film 210 to be processed can be transported by the first picking member 621 and the second picking member 622 respectively, and the fused insulating film 210 and the battery cells 20 with the insulating film 210 removed can be transported, thereby further improving the processing efficiency of the insulating film 210.

[0126] The first pick-up member 621 may be a mechanical claw or a suction member provided with a vacuum suction hole, which is not limited here. The second pick-up member 622 may have a structure substantially the same as that of the first pick-up member 621, so that the first pick-up member 621 and the second pick-up member 622 can be interchangeable, which facilitates the disassembly and assembly of the first pick-up member 621 and the second pick-up member 622. Moreover, when the second pick-up member 622 is provided with a vacuum suction hole, the second pick-up member 622 can directly adsorb and pick up the fused insulating film 210, which facilitates the separation of the fused insulating film 210 from other parts of the battery cell 20.

[0127] In addition, the transport drive module 61 may include a first transport drive member, a second transport drive member and a bracket. The first transport drive member is arranged on the bracket, and the first transport drive member is connected to the second transport drive member, and is used to drive the second transport drive member to move in the horizontal direction. The second transport drive member is movably arranged on the bracket, and the second transport drive member is connected to the picking module 62, and is used to drive the picking module 62 to rise and fall, so that the picking module 62 can be driven to move in the horizontal direction by the first transport drive member, and the picking module 62 can be driven to move in the vertical direction by the second transport drive member.

[0128] Furthermore, when the picking module 62 includes a first picking member 621 and a second picking member 622, in some embodiments, the number of the first transport driving member and the second transport driving member may both be one, and the second transport driving member may be connected to the first picking member 621 and the second picking member 622, respectively, so that the first transport driving member can drive the first picking member 621 and the second picking member 622 to move in the horizontal direction at the same time, and the second transport driving member can drive the first picking member 621 and the second picking member 622 to move in the vertical direction at the same time. Of course, the second transport driving member can also drive the first picking member 621 and the second picking member 622 to move in the vertical direction, respectively. In other embodiments, the number of the first transport driving member and the second transport driving member are both two, one first transport driving member and one second transport driving member are arranged corresponding to the first picking member 621, and another first transport driving member and another second transport driving member are arranged corresponding to the second picking member 622, so that the first picking member 621 and the second picking member 622 can move independently of each other, so that the transport rhythm of the battery cells 20 with the insulating film 210 to be processed and the battery cells 20 with the insulating film 210 removed can be compact, thereby effectively improving the efficiency.

[0129] The first transport drive member may be any one of a cylinder, an electric cylinder or a linear motor, etc., which is not limited here. The implementation method of the second transport drive member may be substantially the same as the implementation method of the first transport drive member, which will not be described in detail here.

[0130] Optionally, there is a first spacing along the horizontal direction between the loading station and the workbench 1, and there is a second spacing along the horizontal direction between the first picking member 621 and the second picking member 622, and between the workbench 1 and the battery cell disassembly station. The first spacing is the same as the second spacing. The transport drive module 61 is simultaneously connected to the first picking member 621 and the second picking member 622 for driving the first picking member 621 to move between the loading station and the workbench 1, and simultaneously driving the second picking member 622 to move between the workbench 1 and the battery cell disassembly station.

[0131] Thus, the transport driving module 61 can simultaneously drive the first picking member 621 and the second picking member 622 to move, that is, one driving member can simultaneously drive the first picking member 621 and the second picking member 622 to move, which effectively simplifies the structure of the transport driving module 61 and reduces the cost.

[0132] Exemplarily, the transport drive module 61 can drive the first picking member 621 to transport the battery cell 20 with the to-be-processed insulating film 210 from the loading station to the workbench 1, and then the first driving member 21 can drive the first hot melt tool 22 to fuse the first edge of the battery cell 20, and the second driving member 31 can drive the second hot melt tool 32 to fuse the second edge of the battery cell 20 to separate the insulating film 210 from the top cover assembly 220; then, the transport drive module 61 can drive the second picking member 622 to transport the fused insulating film 210 from the workbench 1 to the insulating film 210. The film 210 is at the recovery station; then, the transport drive module 61 drives the second picking component 622 again to transport the battery cell 20 with the insulating film 210 removed from the workbench 1 to the battery cell disassembly station. At the same time, the transport drive module 61 can drive the first picking component 621 to move to the loading station to pick up the battery cell 20 with the insulating film 210 to be processed, and transport the picked up battery cell 20 to the workbench 1, which can not only simplify the structure of the transport drive module 61, but also effectively save the transport time of the transport component 6, thereby effectively improving the processing efficiency of the insulating film 210.

[0133] The present application also provides a battery recycling device, comprising the device 10 for removing the insulating film according to any one of the above embodiments.

[0134] In this embodiment, the device 10 for removing the insulating film in the battery recycling equipment is the device 10 for removing the insulating film described in the above embodiments. Therefore, the device 10 for removing the insulating film in this embodiment has the technical effects of the device 10 for removing the insulating film in the above embodiments. Since the technical effects of the device 10 for removing the insulating film have been fully described in each embodiment, they will not be repeated here.

[0135] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A device for removing an insulating film, used to separate the insulating film of a battery cell from the top cover assembly of the battery cell, characterized in that: The device for removing the insulating film comprises: A workbench, the workbench is used to carry the battery cell with the insulating film to be processed; a first cutter assembly, the first cutter assembly comprising a first driving member and a first hot melt cutter, the first driving member being connected to the first hot melt cutter and being used to drive the first hot melt cutter to move closer to or away from the battery cell in a first direction, so as to fuse two opposite first edges of the insulating film on the battery cell and the top cover assembly when the first hot melt cutter is crimped onto the battery cell; A second tool assembly, the second tool assembly includes a second driving member and a second hot melt tool, the second driving member is connected to the second hot melt tool, and is used to drive the second hot melt tool to move closer to or away from the battery cell along a second direction, so as to fuse the two opposite second edges connecting the insulating film on the battery cell and the top cover assembly when the second hot melt tool is crimped onto the battery cell.

2. The device for removing an insulating film according to claim 1, characterized in that: The battery core has two first side walls opposite to each other along the first direction, and the first edge is located on the first side wall; The first hot melt tool comprises a first hot melt tool body, the length of which along the second direction is equal to or greater than the length of the first edge, so that the first edge is melted when the first driving member drives the first hot melt tool body to move and crimp onto the first edge.

3. The device for removing an insulating film according to claim 2, characterized in that: The first hot melt blade body comprises a first hot melt blade segment and a second hot melt blade segment, the first hot melt blade segment extends along the second direction, the second hot melt blade segment is located at two opposite sides of the first hot melt blade segment along the second direction, the size of the first hot melt blade segment along the third direction is smaller than the size of the second hot melt blade segment along the third direction, the second hot melt blade segment has a target plane passing through itself, the third direction is a direction perpendicular to both the first direction and the second direction, and the target plane is a plane parallel to both the first direction and the second direction; The battery core has two second side walls opposite to each other along the second direction, and the second edge is located on the second side wall; The second hot melt tool includes a second hot melt tool body, and the length of the second hot melt tool body along the first direction is equal to or greater than the length of the second edge, so that the second edge can be melted when the second driving member drives the second hot melt tool body to move and crimp on the second edge, and the second hot melt tool body has two ends opposite to each other along the first direction, and the target plane also passes through the ends.

4. The device for removing an insulating film according to claim 3, characterized in that: The total length of the first hot melt blade segment and the second hot melt blade segment along the second direction is equal to the length of the first edge, and the second hot melt blade segment is formed by bending both ends of the first hot melt blade segment along the second direction along the third direction.

5. The device for removing an insulating film according to claim 2, characterized in that: The first hot melt knife body has a connecting end and a hot melt end opposite to each other along a first direction, the connecting end is connected to the first driving member, the hot melt end is used to melt the first edge when the first hot melt knife is crimped onto the battery core, and the thickness of the hot melt end is smaller than the thickness of the connecting end.

6. The device for removing an insulating film according to claim 2, characterized in that: The material of the first hot melt blade body is at least one of tungsten steel, stainless steel and alloy steel.

7. The device for removing an insulating film according to claim 1, characterized in that: The battery core has two second side walls opposite to each other along the second direction, and the second edge is located on the second side wall; The second hot melt knife includes a second hot melt knife body, and the length of the second hot melt knife body along the first direction is equal to or greater than the length of the second edge, so that the second edge is melted when the second driving member drives the second hot melt knife body to move and crimp on the second edge.

8. The device for removing an insulating film according to any one of claims 1 to 7, characterized in that: The device for removing the insulating film further comprises a fixing fixture disposed on the workbench, the fixing fixture having a receiving groove, the receiving groove being used to receive the battery cell, the bottom wall of the receiving groove being used to support the end surface of the battery cell close to the top cover assembly, and the side wall of the receiving groove facing the first hot melt tool and the side wall facing the second hot melt tool are both provided with avoidance openings; Clamping assemblies are respectively arranged on two side walls of the accommodating groove that are opposite to each other along the second direction or on two side walls of the accommodating groove that are opposite to each other along the first direction to clamp the battery cell in the accommodating groove.

9. The device for removing an insulating film according to any one of claims 1 to 7, characterized in that: The number of the first hot melt cutters is two, and the two first hot melt cutters are respectively located on two sides of the battery core along the first direction; The number of the second hot-melt cutters is two, and the two second hot-melt cutters are respectively located at two sides of the battery core along the second direction.

10. The device for removing an insulating film according to any one of claims 1 to 7, characterized in that: The device for removing the insulating film comprises a loading station and an unloading station, and the device for removing the insulating film further comprises: A transport assembly, the transport assembly comprising a transport drive module and a pick-up module, the transport drive module being in transmission connection with the pick-up module and being used to drive the pick-up module to move between the loading station and the workbench, and / or being used to drive the pick-up module to move between the workbench and the unloading station; A conveying component is used to convey the battery cell with the insulating film to be processed to the loading station.

11. A battery recycling device, characterized in that: A device for removing an insulating film comprising the device described in any one of claims 1 to 10.

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