Battery membrane dismounting device and production system of single battery

Abstract

The utility model provides a battery film dismounting device and a production system of a battery monomer, the battery film dismounting device comprises a rack, a base assembly, a cover plate and a cutter, a first driving mechanism of the base assembly is arranged on the rack and used for driving a base to lift, the base is used for bearing a packaging film, the cover plate is configured to be capable of moving to the upper side of the base in a first direction, and the cutter is arranged on the cover plate. The first direction is perpendicular to the lifting direction of the base, and a cutter arranged above the base can cut the packaging film through a channel of the cover plate. The cover plate can move to the upper side of the base in the first direction, so that the base bearing the packaging film can be driven by the first driving mechanism to ascend to press the packaging film on the cover plate, and the packaging film can be conveniently cut. In the structure, the cover plate covers the base in a translation manner, so that the possibility that the cover plate interferes with other parts is reduced, and the battery membrane dismounting device is convenient to use and is beneficial to improving the production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of battery device production, and in particular to a battery film removal device and a battery monomer production system. Background Art

[0002] Battery devices have the advantages of high specific energy and high power density, and are widely used in electronic devices and transportation vehicles, such as mobile phones, laptops, electric vehicles, electric airplanes, electric ships, and electric tools.

[0003] As the market demand for battery devices continues to increase, how to improve the production efficiency of battery devices has attracted more and more attention from those skilled in the art. Utility Model Content

[0004] In view of the above problems, the present application provides a battery film removal device and a battery device production system. The battery film removal device is easy to use and is conducive to improving production efficiency.

[0005] In a first aspect, some embodiments of the present application provide a battery film removal device for cutting a packaging film containing an electrode assembly, the battery film removal device comprising a frame, a base assembly, a cover plate and a cutter, the base assembly comprising a base and a first driving mechanism, the first driving mechanism being arranged on the frame, the first driving mechanism being connected to the base and being used to drive the base to rise and fall, the base being used to carry the packaging film; the cover plate being movably connected to the frame along a first direction, the cover plate being configured to be able to move to the upper side of the base, the cover plate being provided with a channel, the first direction being perpendicular to the lifting direction of the base; the cutter being arranged above the base, the cutter being configured to cut the packaging film through the channel.

[0006] In the above structure, the cover plate can reach the upper side of the base by moving along the first direction, so that the base carrying the packaging film can rise under the drive of the first driving mechanism to press the packaging film onto the cover plate, so that the packaging film can be conveniently cut. Since the cover plate covers the base by translation, the possibility of interference between the cover plate and other components is reduced, making the battery film removal device easy to use and conducive to improving production efficiency.

[0007] According to the battery film removal device provided in some embodiments of the present application, a placement groove for carrying the packaging film is provided on the upper side of the base. By providing the placement groove on the side of the base to carry the packaging film, the packaging film can be fixed by the side wall of the placement groove when placed in the placement groove, and is not easy to fall out of the placement groove, which is conducive to reducing the possibility of movement of the packaging film during the cutting process of the packaging film, and is conducive to improving the quality of the cut packaging film.

[0008] According to the battery film removal device provided in some embodiments of the present application, multiple channels are provided, and the multiple channels are interconnected. By providing multiple interconnected channels on the cover plate, the cutter can move along the multiple channels, so that the cutter can cut a larger opening on the packaging film, so that the packaging film can be easily removed from the opening, which is conducive to improving the efficiency of removing the packaging film coated on the electrode assembly.

[0009] According to the battery film removal device provided in some embodiments of the present application, a groove is provided on the upper side of the base, and the groove is arranged around the outside of the placement groove. The groove reduces the contact between the packaging film and the base at the cut position, so that the cutter is not likely to cut the base when cutting the packaging film, which is beneficial to extending the service life of the battery film removal device.

[0010] According to the battery film removal device provided in some embodiments of the present application, the battery film removal device also includes a controller and a second driving mechanism, the second driving mechanism is arranged on the frame, the second driving mechanism is connected to the cover plate and is used to drive the cover plate to move, and the controller is communicatively connected with the first driving mechanism and the second driving mechanism.

[0011] According to the battery film removal device provided in some embodiments of the present application, the battery film removal device further includes a two-hand start switch, which is communicatively connected to the controller. By communicatively connecting the two-hand start switch to the controller, the battery film removal device can only be started by the operator's two hands at the same time, so that the battery film removal device can protect the safety of the operator.

[0012] According to the battery film removal device provided in some embodiments of the present application, the battery film removal device also includes a first guiding mechanism and a second guiding mechanism, the first guiding mechanism includes a first slider and a first guide rail that are slidably connected, the first slider is arranged on one of the frame and the base, and the first guide rail is arranged on the other of the frame and the base; the second guiding mechanism includes a second slider and a second guide rail that are slidably connected, the second slider is arranged on one of the frame and the cover plate, and the second guide rail is arranged on the other of the frame and the cover plate.

[0013] According to the battery film removal device provided in some embodiments of the present application, the base is provided with a first in-situ detector, and the detection end of the first in-situ detector faces the placement position of the packaging film, so that the first in-situ detector can detect whether there is a packaging film on the base.

[0014] According to the battery film removal device provided in some embodiments of the present application, the bottom wall of the placement groove is provided with a downwardly recessed recess, and the first in-situ detector is arranged in the recess.

[0015] According to the battery film removal device provided in some embodiments of the present application, a second in-situ detector is provided on the frame, and the second in-situ detector is used to detect the position of the cover plate.

[0016] According to the battery film removal device provided in some embodiments of the present application, the cover plate is detachably connected to the frame, and the base is detachably connected to the output end of the first driving mechanism, so that the battery film removal device can be suitable for cutting the packaging film of electrode assemblies of different sizes or models by replacing the base and the cover plate.

[0017] In a second aspect, some embodiments of the present application provide a battery cell production system, which includes a battery film removal device provided by any of the above-mentioned technical solutions, and the battery film removal device is used to cut the packaging film of the packaging electrode assembly.

[0018] The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0019] Some embodiments of the present application provide a battery film removal device, which includes a frame, a base assembly, a cover plate and a cutter. The first driving mechanism of the base assembly is arranged on the frame to drive the base to be lifted and lowered. The base is used to carry the packaging film. The cover plate is configured to be able to move to the upper side of the base along a first direction. The first direction is perpendicular to the lifting direction of the base. The cutter arranged above the base can cut the packaging film through the channel of the cover plate. The cover plate can reach the upper side of the base by moving along the first direction, so that the base carrying the packaging film can rise under the drive of the first driving mechanism to press the packaging film against the cover plate, so that the packaging film can be conveniently cut. In the above structure, since the cover plate is covered on the base by translation, the possibility of interference between the cover plate and other components is reduced, making the battery film removal device easy to use and conducive to improving production efficiency.

[0020] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0022] Figure 1 A schematic diagram of a battery film removal device provided in some embodiments of the present application in a state of waiting to be loaded with a packaging film at a first viewing angle;

[0023] Figure 2 A schematic diagram of a battery film removal device provided in some embodiments of the present application in a state where the packaging film is clamped at a first viewing angle;

[0024] Figure 3 A schematic diagram of a battery film removal device provided in some embodiments of the present application in a state of waiting to be loaded with a packaging film at a second viewing angle.

[0025] In the figure:

[0026] 1. Frame; 2. Base assembly; 21. Base; 211. Placement slot; 2111. Recess; 212. Groove; 22. First drive mechanism; 3. Cover plate; 31. Channel; 6. Second drive mechanism; 8. First guide mechanism; 9. Second guide mechanism; 10. First in-position detector; 101. Second in-position detector; 102. Limiting structure; X, first direction; Y, lifting direction. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are 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.

[0028] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0029] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0032] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0033] In the embodiments of the present application, "parallel" includes not only the absolutely parallel situation, but also the roughly parallel situation conventionally recognized in engineering; at the same time, "perpendicular" also includes not only the absolutely perpendicular situation, but also the roughly perpendicular situation conventionally recognized in engineering. For example, if the angle between two directions is 85°-90°, the two directions can be considered perpendicular; if the angle between two directions is 0°-5°, the two directions can be considered parallel.

[0034] The term “plurality” used in this application refers to two or more (including two).

[0035] At present, from the perspective of market development, the application of battery devices is becoming more and more extensive. Battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields.

[0036] The battery device mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include a plurality of battery cells, and the plurality of battery cells are connected in series, in parallel or in mixed connection through a busbar.

[0037] In some embodiments, the battery cell assembly is generally formed by arranging a plurality of battery cells; as an example, the battery cell assembly may be a battery module, which is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells by a cable tie.

[0038] In some embodiments, the battery device may be a battery pack, which includes a case and one or more battery cell assemblies, and the battery cell assembly is accommodated in the case. As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the case by fixing the battery module in the case. As an example, the battery cell assembly may also be accommodated in the case by directly fixing a plurality of battery cells to the case.

[0039] A battery cell generally includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode and a negative electrode. During the charge and discharge process of the battery cell, active ions (such as lithium ions) are embedded and released back and forth between the positive electrode and the negative electrode. The electrolyte plays the role of conducting ions between the positive and negative electrodes. This application does not have any specific restrictions on the type of electrolyte, which can be selected according to needs. The electrolyte can be liquid, gel or solid.

[0040] In the process of producing electrode assemblies of battery cells (especially solid-state battery cells), in order to improve the electrical properties of the electrode assemblies, it is usually necessary to perform warm isostatic pressing on the electrode assemblies. In the prior art, before performing warm isostatic pressing on the electrode assemblies, it is usually necessary to package the electrode assemblies with a packaging film, and after the warm isostatic pressing is completed, the packaging film is torn off so that the electrode assemblies can be further processed or treated.

[0041] At present, the solution of cutting the packaging film is usually adopted by flipping the cover plate over the base carrying the packaging film so as to sandwich the packaging film between the cover plate and the base. In this solution, since the cover plate is flipped over and covered on the base, the cover plate is easy to interfere with the device in the height direction during the flipping process, and it is inconvenient for the operator to flip the cover plate, which is not conducive to improving the efficiency of removing the packaging film.

[0042] In order to improve the convenience of using the battery film removal device and improve production efficiency, some embodiments of the present application provide a battery film removal device, which includes a frame, a base assembly, a cover plate and a cutter. The first driving mechanism of the base assembly is arranged on the frame to drive the base to rise and fall. The base is used to carry the packaging film. The cover plate is configured to be able to move to the upper side of the base along a first direction. The first direction is perpendicular to the lifting direction of the base. The cutter arranged above the base can cut the packaging film through the channel of the cover plate. The cover plate can reach the upper side of the base by moving along the first direction, so that the base carrying the packaging film can rise under the drive of the first driving mechanism to press the packaging film against the cover plate, so that the packaging film can be conveniently cut. In the above structure, since the cover plate covers the base by translation, the possibility of interference between the cover plate and other components is reduced, making the battery film removal device easy to use and conducive to improving production efficiency.

[0043] The battery film removal device disclosed in the embodiment of the present application can be used for but not limited to removing the packaging film encapsulating the electrode assembly, and can also be used to remove the packaging film covering other devices. The battery film removal device can remove the packaging film more conveniently, which is conducive to improving production efficiency.

[0044] Some embodiments of the present application provide a battery film removal device, referring to Figures 1 to 3 The battery film removal device is used to cut the packaging film containing the electrode assembly. The battery film removal device includes a frame 1, a base assembly 2, a cover plate 3 and a cutter (not shown in the figure). The base assembly 2 includes a base 21 and a first driving mechanism 22. The first driving mechanism 22 is arranged on the frame 1. The first driving mechanism 22 is connected to the base 21 and is used to drive the base 21 to rise and fall. The base 21 is used to carry the packaging film; the cover plate 3 is movably connected to the frame 1 along a first direction X. The cover plate 3 is configured to be able to move to the upper side of the base 21. The cover plate 3 is provided with a channel 31. The first direction X is perpendicular to the lifting direction Y of the base 21; the cutter is arranged above the base 21, and the cutter is configured to cut the packaging film through the channel 31.

[0045] The frame 1 may be a frame structure in the battery film removal device, which is used to support and carry other components and to keep the battery film removal device structurally stable.

[0046] The base assembly 2 may refer to a component for carrying a packaging film. The base 21 may be a base structure in the base assembly 2, which is used as a carrier for carrying a packaging film. The first driving mechanism 22 may be a mechanism for driving the base 21 to rise and fall. The first driving mechanism 22 is disposed on the frame 1, and the first driving mechanism 22 is connected to the base 21 and is used to drive the base 21 to rise and fall. The first driving mechanism 22 may be fixed at a fixed end of the first driving mechanism 22 to the frame 1, and the output end of the first driving mechanism 22 is transmission-connected to the base 21, so that the base 21 can move under the drive of the output end of the first driving mechanism 22.

[0047] Exemplarily, the output end of the first driving mechanism 22 is configured to be movable in the vertical direction, so that the output end of the first driving mechanism 22 can drive the base 21 to rise and fall, so that the packaging film carried on the base 21 can be driven to rise and fall, so that the packaging film can be subsequently pressed onto the cover plate 3 located above the base 21.

[0048] The cover plate 3 may be a plate structure for covering the top of the base 21, and it can be moved to the top corresponding to the base 21, so as to press the packaging film together with the base 21 to clamp the packaging film. The cover plate 3 is movably connected to the frame 1 along the first direction X, which may mean that the cover plate 3 can move relative to the frame 1 along the first direction X, so that the cover plate 3 can be translated to the top of the base 21 along the first direction X. By configuring the first direction X to be perpendicular to the lifting direction Y of the base 21, the cover plate 3 can be quickly moved to the top of the base 21 by moving along the first direction X.

[0049] The first direction X may be a horizontal direction perpendicular to the vertical direction, so that the cover plate 3 can be quickly moved to above the base 21 by moving in the horizontal direction.

[0050] The channel 31 may be a structure for allowing a cutter to pass through the cover plate 3 to cut the packaging film between the cover plate 3 and the base 21. The channel 31 is configured to penetrate the cover plate 3 along the thickness direction of the cover plate 3, so that the cutter can extend between the cover plate 3 and the base 21 through the channel 31.

[0051] The cutter may be a tool for cutting the packaging film. The cutter is arranged above the base 21, which may mean that the cutter is arranged above the cover plate 3, so that the cutter is not easy to interfere with the cover plate 3 and the base assembly 2. By arranging the cutter above the base 21, the cutter can cut the packaging film placed on the base 21. Exemplarily, the cutter may be a laser cutter or a ratchet cutter, and those skilled in the art may select the type of cutter according to actual conditions so that the cutter can quickly cut the packaging film.

[0052] In the above structure, the cover plate 3 can reach the upper side of the base 21 by moving along the first direction X, so that the base 21 carrying the packaging film can rise under the drive of the first driving mechanism 22 to press the packaging film onto the cover plate 3, so that the packaging film can be conveniently cut. Since the cover plate 3 covers the base 21 by translation, the possibility of interference between the cover plate 3 and other components is reduced, making the battery film removal device easy to use and conducive to improving production efficiency.

[0053] In some embodiments, a placement groove 211 for supporting the packaging film is provided on the upper side of the base 21 .

[0054] The placement groove 211 may be a concave structure formed by the side of the base 21 being concave inward, and is used to hold the packaging film. By providing the placement groove 211 on the side of the base 21 to carry the packaging film, the packaging film can be fixed by the side wall of the placement groove 211 when placed in the placement groove 211, and is not easy to fall out of the placement groove 211, which is conducive to reducing the possibility of the packaging film moving during the cutting process of the packaging film, and is conducive to improving the quality of the cut packaging film.

[0055] By opening a placement groove 211 on the upper side of the base 21 , the packaging film can be placed on the upper side of the base 21 through the placement groove 211 , so that the rising of the base 21 can clamp the packaging film between the base 21 and the cover plate 3 .

[0056] In some embodiments, a plurality of channels 31 are provided, and the plurality of channels 31 are interconnected.

[0057] By providing a plurality of interconnected channels 31 on the cover plate 3, the cutter can move along the plurality of channels 31, so that the cutter can cut a larger opening on the packaging film, so that the packaging film can be easily removed from the opening, which is beneficial to improving the efficiency of removing the packaging film coated on the electrode assembly.

[0058] Exemplarily, when the cover plate 3 is moved to the upper side of the base 21, a plurality of interconnected channels 31 are arranged around the outside of the placement groove 211, so that the packaging film can be cut along the circumferential edge, so that the cutter can cut a larger opening along the circumference of the electrode assembly on the packaging film, making it easy for the electrode assembly to be removed from the packaging film.

[0059] In some embodiments, a groove 212 is disposed on the upper side of the base 21 , and the groove 212 is disposed around the outer side of the placement slot 211 .

[0060] The groove 212 can be a recessed structure formed by the inward recess of the side of the base 21, which corresponds to the cut position of the packaging film in the vertical direction, and is used to reduce the contact between the packaging film and the base 21 at the cut position, so that the cutter is not likely to cut the base 21 when cutting the packaging film, which is beneficial to extending the service life of the battery film removal device.

[0061] When the cover plate 3 is moved to the upper side of the base 21 , the groove 212 and the channel 31 on the cover plate 3 are arranged opposite to each other along the thickness direction of the cover plate 3 , so that when the cutter cuts the packaging film through the channel 31 , it can fall into the groove 212 without easily damaging the base 21 .

[0062] In some embodiments, the battery film removal device also includes a controller (not shown in the figure) and a second driving mechanism 6, the second driving mechanism 6 is arranged on the frame 1, the second driving mechanism 6 is connected to the cover plate 3 and is used to drive the cover plate 3 to move, and the controller is communicatively connected with the first driving mechanism 22 and the second driving mechanism 6.

[0063] The second driving mechanism 6 may be a mechanism for driving the cover plate 3 to move. The second driving mechanism 6 is disposed on the frame 1, and the second driving mechanism 6 is connected to the cover plate 3 and is used to drive the cover plate 3 to move. The second driving mechanism 6 may be a fixed end of the second driving mechanism 6 fixed to the frame 1, and the output end of the second driving mechanism 6 is transmission-connected to the cover plate 3, so that the cover plate 3 can move under the drive of the output end of the second driving mechanism 6.

[0064] Exemplarily, the second drive mechanism 6 may include a servo motor and a ball screw in transmission connection, and the first drive mechanism 22 may include a servo motor and a ball screw in transmission connection. The controller is in communication connection with the first drive mechanism 22 and the second drive mechanism 6, which may mean that the controller is in communication connection with the servo motor in the first drive mechanism 22 and the servo motor in the second drive mechanism 6. Due to the high operating accuracy of the servo motor, under the control of the controller, the first drive mechanism 22 can more accurately drive the cover plate 3 to move to the preset position, and the second drive mechanism 6 can more accurately drive the base 21 to move to the preset position, so that the battery film removal device can realize its function.

[0065] In some embodiments, the controller can be a centralized or distributed controller. For example, the controller can be a single single-chip microcomputer or a plurality of distributed single-chip microcomputers. The control program can be run in the single-chip microcomputer to control the first drive mechanism 22 and the second drive mechanism 6 to realize their functions.

[0066] In some embodiments, the battery film removal device further includes a two-hand start switch (not shown in the figure), and the two-hand start switch is communicatively connected to the controller.

[0067] By connecting the two-hand start switch to the controller for communication, the battery film removal device can only be started by the operator's two hands at the same time, so that the battery film removal device can protect the safety of the operator.

[0068] For example, a control program may be run in the controller to monitor whether a single button in the two-hand start switch maintains a signal in a preset time period; if it is monitored that a single button in the two-hand start switch maintains a signal in the preset time period, the two-hand start switch is judged to be invalid, and the controller sends an alarm signal to alert surrounding staff. For example, the preset time period may be set to 10 seconds, 15 seconds, or 20 seconds.

[0069] In some embodiments, continue to refer to Figure 2 and Figure 3 The battery film removal device also includes a first guide mechanism 8 and a second guide mechanism 9. The first guide mechanism 8 includes a first slider and a first guide rail that are slidably connected. The first slider is set on one of the frame 1 and the base 21, and the first guide rail is set on the other of the frame 1 and the base 21; the second guide mechanism 9 includes a second slider and a second guide rail that are slidably connected. The second slider is set on one of the frame 1 and the cover plate 3, and the second guide rail is set on the other of the frame 1 and the cover plate 3.

[0070] The first guide mechanism 8 may be a mechanism for guiding the lifting of the base 21, which is used to enable the base 21 to stably move in the vertical direction and not easily deviate during the movement. The second guide mechanism 9 may be a mechanism for guiding the movement of the cover plate 3 along the first direction X, which is used to enable the cover plate 3 to stably move in the first direction X and not easily deviate during the movement.

[0071] The first slider and the first guide rail in the first guide mechanism 8 are slidably connected, and the first slider can be arranged on the frame 1, a sliding hole is provided in the first slider, the first guide rail is arranged on the base 21, and the first guide rail is slidably inserted in the sliding hole; or the first slider in the first guide mechanism 8 is arranged on the base 21, the first guide rail is arranged on the frame 1, a sliding groove or a sliding hole is provided on the first guide rail, and the first slider is slidably connected in the sliding groove or the sliding hole.

[0072] The second slider in the second guide mechanism 9 is slidably connected to the second guide rail. The second slider may be arranged on the frame 1, the second guide rail may be arranged on the cover plate 3, and the second guide rail may be slidably connected to the second slider. Alternatively, the second slider in the second guide mechanism 9 may be arranged on the base 21, the second guide rail may be arranged on the frame 1, and the second guide rail may be slidably connected to the second slider.

[0073] In some embodiments, the base 21 is provided with a first in-situ detector 10 , and a detection end of the first in-situ detector 10 faces the placement position of the packaging film.

[0074] The first on-site detector 10 may be a sensor for detecting whether a packaging film is carried on the base 21. By arranging the detection end of the first on-site detector 10 toward the placement position of the packaging film, the first on-site detector 10 can detect whether there is a packaging film on the base 21.

[0075] The first in-situ detector 10 is communicatively connected with the controller, so that if a packaging film is set on the base 21, the first in-situ detector 10 can transmit the information that the packaging film is set on the base 21 to the controller; if the packaging film is not set on the base 21, the first in-situ detector 10 can transmit the information that the packaging film is not set on the base 21 to the controller, so that the controller can control the operation of the battery film removal device according to whether there is a packaging film on the base 21.

[0076] Exemplarily, the first presence detector 10 may be a photoelectric sensor or a Hall sensor, and those skilled in the art may select the type of the first presence detector 10 according to actual conditions.

[0077] In some embodiments, a bottom wall of the placement groove 211 is provided with a recess 2111 that is recessed downward, and the first in-place detector 10 is disposed in the recess 2111 .

[0078] The recess 2111 may be a space provided on the placement groove 211 for accommodating the first in-place detector 10, which enables the first in-place detector 10 located therein to conveniently detect whether a packaging film is carried on the placement groove 211, which can not only reduce the possibility of the first in-place detector 10 being bumped by components such as the cover plate 3, but also reduce the space occupied between the cover plate 3 and the base 21.

[0079] By setting a downwardly recessed recess 2111 on the bottom wall of the placement groove 211 , the first in-position detector 10 is set in the recess 2111 with its detection end facing upward, so that the first in-position detector 10 can accurately detect whether the placement groove 211 carries a packaging film.

[0080] In some embodiments, continue to refer to Figure 2 A second in-position detector 101 is disposed on the frame 1 , and the second in-position detector 101 is used to detect the position of the cover plate 3 .

[0081] The cover plate 3 may move between the waiting position and the working position during the movement along the first direction X. The waiting position may be the position of the cover plate 3 when waiting for the base 21 to place the packaging film, and the cover plate 3 is away from the top of the base 21. The working position may be the position of the cover plate 3 when the cover plate 3 is located directly above the base 21, and the cover plate 3 can clamp the packaging film with the base 21.

[0082] The second in-position detector 101 may be a sensor for detecting whether the cover plate 3 is in the waiting position. By connecting the second in-position detector 101 to the frame 1 and arranging the detection end of the second in-position detector 101 toward the waiting position, the second in-position detector 101 can detect whether the cover plate 3 is in the waiting position.

[0083] The second in-place detector 101 is communicatively connected with the controller, so that the second in-place detector 101 can transmit information about whether the cover plate 3 is in the waiting position to the controller. If the cover plate 3 is in the waiting position, the second in-place detector 101 can transmit information about the cover plate 3 being in the waiting position to the controller, so that the controller can send a prompt signal to remind the operator that the cover plate 3 has arrived at the waiting position, thereby facilitating the operator to place the packaging film into the placement groove 211.

[0084] Exemplarily, the second presence detector 101 may be a photoelectric sensor or a Hall sensor, and those skilled in the art may select the type of the second presence detector 101 according to actual conditions.

[0085] In some embodiments, the cover plate 3 is detachably connected to the frame 1 , and the base 21 is detachably connected to the output end of the first driving mechanism 22 .

[0086] By detachably connecting the cover plate 3 to the frame 1 and detachably connecting the base 21 to the output end of the first driving mechanism 22, the cover plate 3 can be replaced by disassembly, and the base 21 can also be replaced by disassembly, so that the battery film removal device can be suitable for cutting the packaging film of electrode assemblies of different sizes or models by replacing the base 21 and the cover plate 3.

[0087] In some embodiments, continue to refer to Figure 3 A limiting structure 102 is provided on the cover plate 3, and the limiting structure 102 is connected between the cover plate 3 and the frame 1, and is used to limit the relative position of the cover plate 3 and the frame 1 in the vertical direction, so that when the base 21 clamps the packaging film on the cover plate 3, the limiting structure 102 can fix the cover plate 3 in the vertical direction, thereby reducing the possibility of the cover plate 3 being detached from the frame 1 due to the force.

[0088] Exemplarily, the working process of the battery film removal device is as follows:

[0089] The operator places the packaging film containing the electrode assembly into the placement groove 211 and presses the two-handed starting switch. The cover plate 3 translates along the first direction X to above the base 21. The base 21 rises to press the packaging film against the cover plate 3. The cutter cuts the packaging film through the channel 31. The operator presses the two-handed starting switch again. The cover plate 3 translates along the first direction X away from the base 21. The operator removes the packaging film and tears it off from the electrode assembly.

[0090] Some embodiments of the present application also provide a battery cell production system, the battery cell production system includes the battery film removal device provided by the above technical solution, the battery film removal device is used to cut the packaging film of the packaging electrode assembly.

[0091] Since the battery film removal device can conveniently cut the packaging film containing the electrode assembly, the battery film removal device has high production efficiency.

[0092] Some embodiments of the present application provide a battery film removal device such as Figure 1As shown, the battery film removal device includes a frame 1, a base assembly 2, a cover plate 3, a cutter, a controller, a two-hand start switch and a second drive mechanism 6. The base 21 in the base assembly 2 is provided with a placement groove 211 for carrying the packaging film. The first drive mechanism 22 is used to drive the base 21 to rise and fall. The cover plate 3 can be moved to the upper side of the base 21 along the first direction X under the drive of the second drive mechanism 6. The cover plate 3 is provided with a channel 31. The cutter is arranged above the base 21 and can cut the packaging film through the channel 31. A first in-position detector 10 is provided in the placement groove 211, and a second in-position detector 101 is provided on the frame 1. The first in-position detector 10, the second in-position detector 101, the two-hand start switch, the base assembly 2 and the second drive mechanism 6 are all connected to the controller for communication. In the above structure, since the cover plate 3 covers the base 21 by translation, the possibility of interference between the cover plate 3 and other components is reduced, making the battery film removal device easy to use and conducive to improving production efficiency.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery film removal device, used for cutting a packaging film containing an electrode assembly, characterized in that: include: frame; A base assembly, comprising a base and a first driving mechanism, wherein the first driving mechanism is disposed on the frame, the first driving mechanism is connected to the base and is used to drive the base to rise and fall, and the base is used to carry the packaging film; a cover plate movably connected to the frame along a first direction, the cover plate being configured to be movable to the upper side of the base, the cover plate being provided with a channel, the first direction being perpendicular to the lifting direction of the base; A cutter is disposed above the base, and the cutter is configured to cut the packaging film through the channel.

2. The battery film removal device according to claim 1, characterized in that: The upper side of the base is provided with a placement groove for carrying the packaging film.

3. The battery film removal device according to claim 1, characterized in that: There are a plurality of channels, and the plurality of channels are interconnected.

4. The battery film removal device according to claim 2, characterized in that: A groove is arranged on the upper side of the base, and the groove is arranged around the outer side of the placement groove.

5. The battery film removal device according to claim 1, characterized in that: The battery film removal device also includes a controller and a second driving mechanism, wherein the second driving mechanism is disposed on the frame, the second driving mechanism is connected to the cover plate and is used to drive the cover plate to move, and the controller is communicatively connected with the first driving mechanism and the second driving mechanism.

6. The battery film removal device according to claim 5, characterized in that: The battery film removal device also includes a two-hand start switch, and the two-hand start switch is communicatively connected with the controller.

7. The battery film removal device according to claim 1, characterized in that: The battery membrane removal device also includes a first guiding mechanism and a second guiding mechanism, the first guiding mechanism includes a first slider and a first guide rail that are slidably connected, the first slider is set at one of the frame and the base, and the first guide rail is set at the other of the frame and the base; the second guiding mechanism includes a second slider and a second guide rail that are slidably connected, the second slider is set at one of the frame and the cover plate, and the second guide rail is set at the other of the frame and the cover plate.

8. The battery film removal device according to claim 2, characterized in that: The base is provided with a first in-situ detector, and a detection end of the first in-situ detector faces the placement position of the packaging film.

9. The battery film removal device according to claim 8, characterized in that: The bottom wall of the placement groove is provided with a recessed portion sunken downwards, and the first in-position detector is arranged in the recessed portion.

10. The battery film removal device according to claim 1, characterized in that: The frame is provided with a second in-position detector, and the second in-position detector is used to detect the position of the cover plate.

11. The battery film removal device according to claim 1, characterized in that: The cover plate is detachably connected to the frame, and the base is detachably connected to the output end of the first driving mechanism.

12. A battery cell production system, characterized in that: It comprises a battery film removal device as described in any one of claims 1 to 11, wherein the battery film removal device is used to cut the packaging film of the packaging electrode assembly.

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