Battery film removal device and battery cell production system

Abstract

Provided in the present application are a battery film removal device and a battery cell production system. The battery film removal device comprises a frame, a base assembly, a cover plate and a cutting blade, wherein a first driving mechanism of the base assembly is arranged on the frame for driving a base to move vertically, the base being used for carrying a packaging film; the cover plate is configured to move to the upper side of the base in a first direction, the first direction being perpendicular to the vertical movement of the base; and the cutting blade arranged above the base can cut the packaging film through a passage in the cover plate. The cover plate can move to the upper side of the base in the first direction, such that the base carrying the packaging film can be driven upward by the first driving mechanism to press the packaging film against the cover plate, enabling the packaging film to be cut easily. In this structure, since the cover plate covers the base by means of translational movement, the possibility of interference between the cover plate and other components is reduced, making the battery film removal device easy to use, facilitating improvement to production efficiency.

Description

Battery film removing device and battery cell production system

[0001] Cross Reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202422318929.0, filed on September 23, 2024, entitled “Battery film removing device and battery cell production system”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of battery device production, in particular to a battery film removing device and a battery cell production system. BACKGROUND

[0004] Battery devices have high specific energy, high power density and other advantages, and are widely used in electronic devices and vehicles, such as mobile phones, notebook computers, electric vehicles, electric cars, electric planes, electric ships and electric tools, etc.

[0005] With the increasing demand for battery devices, how to improve the production efficiency of battery devices has attracted more and more attention of those skilled in the art.

[0006] SUMMARY

[0007] In view of the above problems, the present application provides a battery film removing device and a battery device production system, which is convenient to use and helps to improve production efficiency.

[0008] In a first aspect, some embodiments of the present application provide a battery film removing device for cutting a packaging film containing an electrode assembly, the battery film removing device comprising a rack, 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 rack, the first driving mechanism being connected to the base and being used to drive the base to lift, the base being used to carry the packaging film; the cover plate being movably connected to the rack 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 passage, 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 passage.

[0009] 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 be lifted by the first driving mechanism to press the packaging film on 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, so that the battery film removing device is convenient to use and helps to improve production efficiency.

[0010] According to the battery film removing device provided by some embodiments of the present application, the upper side of the base is provided with a placing groove for carrying the packaging film. The packaging film is carried by the placing groove on the side of the base, so that the packaging film can be fixed by the side wall of the placing groove when placed in the placing groove and is not easy to fall out of the placing groove, which is beneficial to reduce the possibility of movement of the packaging film in the process of cutting the packaging film and improve the quality of cutting the packaging film.

[0011] According to the battery film removing device provided by some embodiments of the present application, a plurality of channels are arranged and the plurality of channels are communicated with each other. The plurality of channels are arranged on the cover plate and communicated with each other, so that the cutter can move along the plurality of channels and cut a larger opening on the packaging film, so that the packaging film can be conveniently removed from the opening, which is beneficial to improve the efficiency of removing the packaging film covering the electrode assembly.

[0012] According to the battery film removing device provided by some embodiments of the present application, the upper side of the base is provided with a groove, the groove is arranged outside the placing groove, and the groove reduces the contact between the packaging film at the cutting position and the base, so that the cutter is not easy to cut the base when cutting the packaging film, which is beneficial to prolong the service life of the battery film removing device.

[0013] According to the battery film removing device provided by some embodiments of the present application, the battery film removing device further comprises a controller and a second driving mechanism, the second driving mechanism is arranged on the rack, the second driving mechanism is connected to the cover plate and is used to drive the cover plate to move, and the controller is in communication connection with the first driving mechanism and the second driving mechanism.

[0014] According to the battery film removing device provided by some embodiments of the present application, the battery film removing device further comprises a double-hand starting switch, and the double-hand starting switch is in communication connection with the controller. The double-hand starting switch is in communication connection with the controller, so that the starting of the battery film removing device must be operated by the double hands of the operator, which can protect the safety of the operator.

[0015] According to the battery film removing device provided by some embodiments of the present application, the battery film removing device further comprises a first guide mechanism and a second guide mechanism, the first guide mechanism comprises a first sliding block and a first guide rail in sliding connection, the first sliding block is arranged on one of the rack and the base, and the first guide rail is arranged on the other one of the rack and the base; the second guide mechanism comprises a second sliding block and a second guide rail in sliding connection, the second sliding block is arranged on one of the rack and the cover plate, and the second guide rail is arranged on the other one of the rack and the cover plate.

[0016] According to the battery film removing device provided by some embodiments of the present application, the base is provided with a first in-place detector, and the detection end of the first in-place detector faces the placing position of the packaging film, so that the first in-place detector can detect whether there is a packaging film on the base.

[0017] According to the battery film removing device provided by some embodiments of the present application, the bottom wall of the placing groove is provided with a downwardly recessed recess, and the first in-place detector is arranged in the recess.

[0018] According to the battery film removing device provided by some embodiments of the present application, the rack is provided with a second in-place detector, and the second in-place detector is used to detect the position of the cover plate.

[0019] According to the battery film removing device provided by some embodiments of the present application, the cover plate is detachably connected to the rack, and the base is detachably connected to the output end of the first driving mechanism, so that the battery film removing device can be adapted to cut the packaging film of electrode assemblies of different sizes or models by replacing the base and the cover plate.

[0020] In a second aspect, some embodiments of the present application provide a battery monomer production system, which comprises the battery film removing device provided by any of the technical solutions above, and the battery film removing device is used to cut the packaging film of an electrode assembly.

[0021] The technical solutions provided by the embodiments of the present application at least bring the following beneficial effects:

[0022] Some embodiments of the present application provide a battery film removing device, which comprises a rack, a base assembly, a cover plate and a cutter. The first driving mechanism of the base assembly is arranged on the rack and is used to drive the base to ascend and descend. The base is used to carry a packaging film. The cover plate is configured to be movable to the upper side of the base along a first direction, and the first direction is perpendicular to the ascending and descending direction of the base. The cutter arranged above the base can cut the packaging film through the passage 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 be lifted to press the packaging film on the cover plate under the driving of the first driving mechanism, and 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, so that the battery film removing device is convenient to use, and the production efficiency is improved.

[0023] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clearly understood, and to be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0024] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are intended to depict only preferred embodiments of the application, and therefore should not be considered to limit the scope of the application in any way. Furthermore, the drawings are merely intended to show preferred embodiments of the application, and should not be considered to limit the scope of the application in any way. In the drawings:

[0025] Fig. 1 is a schematic diagram of a battery film-removing device provided by some embodiments of the present application in a state of waiting for loading of a packaging film from a first perspective;

[0026] Fig. 2 is a schematic diagram of a battery film-removing device provided by some embodiments of the present application in a state of clamping a packaging film from a first perspective;

[0027] Fig. 3 is a schematic diagram of a battery film-removing device provided by some embodiments of the present application in a state of waiting for loading of a packaging film from a second perspective.

[0028] In the drawings:

[0029] 1, rack; 2, base assembly; 21, base; 211, placing groove; 2111, recess; 212, groove; 22, first driving mechanism; 3, cover plate; 31, channel; 6, second driving mechanism; 8, first guide mechanism; 9, second guide mechanism; 10, first in-place detector; 101, second in-place detector; 102, limiting structure; X, first direction; Y, lifting direction. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0031] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as those commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, not to describe a particular order or primary and secondary relationship.

[0032] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to other embodiments.

[0033] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection", "attached" should be broadly interpreted, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The term "and / or" in the present application is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents that the front and rear associated objects have an "or" relationship.

[0035] In the embodiments of the present application, the same reference signs represent the same parts, and for the sake of brevity, the detailed description of the same parts is omitted in different embodiments. It should be understood that the thickness, length and width of various components in the embodiments of the present application shown in the drawings, and the overall thickness, length and width of the integrated device are only exemplary and should not constitute any limitation on the present application.

[0036] In the embodiments of the present application, "parallel" not only includes the case of absolute parallel, but also includes the case of approximate parallel which is generally recognized in engineering; at the same time, "perpendicular" not only includes the case of absolute perpendicular, but also includes the case of approximate perpendicular which is generally recognized in engineering. For example, the included angle between two directions is 85°-90°, which can be considered as perpendicular; the included angle between two directions is 0°-5°, which can be considered as parallel.

[0037] "Multiple" appearing in the present application refers to two or more (including two).

[0038] At present, from the development of market situation, the application of battery device is more and more extensive. The battery device is not only applied to the energy storage power supply system of hydropower, thermal power, wind power and solar power station, but also widely applied to electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, military equipment, aerospace and other fields.

[0039] The battery device mentioned in the embodiments of the present application can include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly can include a plurality of battery cells connected in series, parallel or mixed connection through a busbar component.

[0040] In some embodiments, the battery cell assembly is typically formed by arranging a plurality of battery cells; as an example, the battery cell assembly can be a battery module, which is formed by arranging and fixing a plurality of battery cells into one independent module. As an example, the battery module can be formed by bundling a plurality of battery cells by a cable tie.

[0041] In some embodiments, the battery device can be a battery pack, which includes a box and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the box. As an example, the battery cell assembly can be a battery module, which can be accommodated in the box by fixing the battery module in the box. As an example, the battery cell assembly can also be accommodated in the box by fixing a plurality of battery cells directly in the box.

[0042] The battery cell generally includes an electrode assembly and an electrolyte. The electrode assembly includes a cathode and an anode. During the charging and discharging of the battery cell, active ions (e.g., lithium ions) are embedded and extracted between the cathode and the anode. The electrolyte serves to conduct ions between the cathode and the anode. The type of electrolyte is not specifically limited in the present application and can be selected as needed. The electrolyte can be liquid, gel or solid.

[0043] In the process of producing the electrode assembly of the battery cell (especially the solid-state battery cell), in order to improve the electrical performance of the electrode assembly, it is usually necessary to perform warm isostatic pressing on the electrode assembly. In the prior art, before performing warm isostatic pressing on the electrode assembly, the electrode assembly is usually packaged with a packaging film, and after the warm isostatic pressing is completed, the packaging film is torn to facilitate further processing or treatment of the electrode assembly.

[0044] Currently, the scheme of flipping a cover plate onto a base carrying a packaging film to clamp the packaging film between the cover plate and the base is usually used to cut the packaging film. In this scheme, since the cover plate is flipped onto the base, the cover plate is prone 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.

[0045] In order to improve the convenience of use of the battery film removing device and improve production efficiency, some embodiments of the present application provide a battery film removing device, which comprises a rack, a base assembly, a cover plate and a cutter. The first driving mechanism of the base assembly is arranged on the rack for driving the base to lift. The base is used for carrying the packaging film. The cover plate is configured to be movable to the upper side of the base along the 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 passage 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 be lifted by the driving of the first driving mechanism to press the packaging film on 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, so that the battery film removing device is convenient to use and is beneficial to improve production efficiency.

[0046] The battery film removing device disclosed by the embodiments of the present application can be used for removing the packaging film of the electrode assembly, but is not limited to this. It can also be used for removing the packaging film of other devices. The battery film removing device can conveniently remove the packaging film and is beneficial to improve production efficiency.

[0047] Some embodiments of the present application provide a battery film removing device for cutting the packaging film containing the electrode assembly. Referring to FIGS. 1 to 3, the battery film removing device comprises a rack 1, a base assembly 2, a cover plate 3 and a cutter (not shown in the figure). The base assembly 2 comprises a base 21 and a first driving mechanism 22. The first driving mechanism 22 is arranged on the rack 1. The first driving mechanism 22 is connected to the base 21 and is used for driving the base 21 to lift. The base 21 is used for carrying the packaging film. The cover plate 3 is movably connected to the rack 1 along the first direction X. The cover plate 3 is configured to be movable to the upper side of the base 21. The cover plate 3 is provided with a passage 31. The first direction X is perpendicular to the lifting direction Y of the base 21. The cutter is arranged above the base 21. The cutter is configured to cut the packaging film through the passage 31.

[0048] The rack 1 can be the frame structure in the battery film removing device. It is used for supporting and carrying other components and is used for keeping the structure of the battery film removing device stable.

[0049] The base assembly 2 can refer to the assembly used for carrying the packaging film. The base 21 can be the seat structure in the base assembly 2. It is used as the carrier for carrying the packaging film. The first driving mechanism 22 can be the mechanism used for driving the base 21 to lift. The first driving mechanism 22 is arranged on the rack 1. The first driving mechanism 22 is connected to the base 21 and is used for driving the base 21 to lift. The fixed end of the first driving mechanism 22 can be fixed to the rack 1. The output end of the first driving mechanism 22 can be drivingly connected to the base 21, so that the base 21 can move under the driving of the output end of the first driving mechanism 22.

[0050] 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 ascend and descend, so that the packaging film carried on the base 21 can be driven to ascend and descend, facilitating the subsequent compression of the packaging film on the cover plate 3 above the base 21.

[0051] The cover plate 3 can be a plate structure used to cover above the base 21, which can be moved to the upper side corresponding to the base 21 to press the packaging film together with the base 21, so as to clamp the packaging film. The cover plate 3 is movably connected to the rack 1 along the first direction X, that is, the cover plate 3 can move relative to the rack 1 along the first direction X, so that the cover plate 3 can be translated to above the base 21 along the first direction X. By configuring the first direction X to be perpendicular to the ascending and descending direction Y of the base 21, the cover plate 3 can be quickly moved to above the base 21 by moving along the first direction X.

[0052] The first direction X can 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 along the horizontal direction.

[0053] The channel 31 can be a structure for the cutter 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 into the cover plate 3 and the base 21 through the channel 31.

[0054] The cutter can be a tool for cutting the packaging film. The tool is arranged above the base 21, that is, 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 arranged on the base 21. Exemplarily, the cutter can be a laser cutter or a ratchet cutter. Those skilled in the art can select the type of cutter according to the actual situation, so that the cutter can quickly cut the packaging film.

[0055] 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 be driven by the first driving mechanism 22 to ascend and press the packaging film on 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, so that the battery film removing device is convenient to use, which is beneficial to improve the production efficiency.

[0056] In some embodiments, the upper side of the base 21 is provided with a placing groove 211 for carrying the packaging film.

[0057] The placing groove 211 can be a recess structure formed by inwardly recessing the side surface of the base 21, which is used for containing the packaging film. By arranging the placing groove 211 on the side surface of the base 21 to carry the packaging film, the packaging film can be fixed by the side wall of the placing groove 211 when placed in the placing groove 211 and is not easy to fall out of the placing groove 211, which is beneficial to reduce the possibility of the packaging film moving during cutting and improve the cutting quality of the packaging film.

[0058] By arranging the placing 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 placing groove 211, so that the packaging film can be clamped between the base 21 and the cover plate 3 by the lifting of the base 21.

[0059] In some embodiments, the plurality of channels 31 are arranged to be in communication with each other.

[0060] By arranging the plurality of channels 31 in communication with each other 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, and the packaging film can be conveniently removed from the opening, which is beneficial to improve the efficiency of removing the packaging film covering the electrode assembly.

[0061] For example, in the state that the cover plate 3 is moved to the upper side of the base 21, the plurality of channels 31 in communication with each other are arranged outside the placing groove 211, so that the packaging film can be cut along the circumferential edge, and the cutter can cut a larger opening along the circumference of the electrode assembly, which is convenient for the electrode assembly to fall out of the packaging film.

[0062] In some embodiments, the upper side of the base 21 is provided with a groove 212, and the groove 212 is arranged outside the placing groove 211.

[0063] The groove 212 can be a recess structure formed by inwardly recessing the side surface of the base 21, which corresponds to the cutting position of the packaging film in the vertical direction and is used for reducing the contact between the cutting position of the packaging film and the base 21, so that the cutter is not easy to cut the base 21 when cutting the packaging film, which is beneficial to prolong the service life of the battery film removing device.

[0064] In the case that 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 in the thickness direction of the cover plate 3, so that the cutter can fall into the groove 212 when cutting the packaging film through the channel 31 and is not easy to damage the base 21.

[0065] In some embodiments, the battery film removing device further comprises a controller (not shown in the figure) and a second driving mechanism 6, the second driving mechanism 6 is arranged on the rack 1, the second driving mechanism 6 is connected to the cover plate 3 and is used for driving the cover plate 3 to move, and the controller is in communication connection with the first driving mechanism 22 and the second driving mechanism 6.

[0066] The second driving mechanism 6 can be a mechanism for driving the cover plate 3 to move. The second driving mechanism 6 is arranged on the rack 1, and is connected to the cover plate 3 and used for driving the cover plate 3 to move. The second driving mechanism 6 can be fixed at a fixed end thereof to the rack 1, and an output end thereof is drivingly connected to the cover plate 3, so that the cover plate 3 can be driven by the output end of the second driving mechanism 6 to move.

[0067] Exemplarily, the second driving mechanism 6 can include a servo motor and a ball screw drivingly connected, and the first driving mechanism 22 can include a servo motor and a ball screw drivingly connected. The controller is communicatively connected to the servo motor in the first driving mechanism 22 and the servo motor in the second driving mechanism 6. Since the servo motor has high operation accuracy, under the control of the controller, the first driving mechanism 22 can drive the cover plate 3 to move to a preset position more accurately, and the second driving mechanism 6 can drive the base 21 to move to a preset position more accurately, so that the battery film removing device can realize its functions.

[0068] In some embodiments, the controller can be a centralized or distributed controller. For example, the controller can be a single microcontroller or composed of multiple distributed microcontrollers. The microcontroller can run a control program to control the first driving mechanism 22 and the second driving mechanism 6 to realize their functions.

[0069] In some embodiments, the battery film removing device further includes a two-hand starting switch (not shown in the figure), which is communicatively connected to the controller.

[0070] By communicatively connecting the two-hand starting switch to the controller, the starting of the battery film removing device must be operated by the two hands of the operator at the same time, so that the battery film removing device can protect the safety of the operator.

[0071] Exemplarily, the control program can be run in the controller to monitor whether a single button in the two-hand starting switch maintains a signal in a preset time period. If it is monitored that the single button in the two-hand starting switch maintains a signal in the preset time period, it is judged that the two-hand starting switch is invalid, and the controller sends an alarm signal to remind the surrounding workers. Exemplarily, the preset time period can be set to 10 seconds, 15 seconds or 20 seconds.

[0072] In some embodiments, with reference to Figures 2 and 3, the battery film stripping device further comprises a first guide mechanism 8 and a second guide mechanism 9. The first guide mechanism 8 comprises a first sliding block and a first guide rail in sliding connection, the first sliding block is arranged on one of the rack 1 and the base 21, and the first guide rail is arranged on the other one of the rack 1 and the base 21. The second guide mechanism 9 comprises a second sliding block and a second guide rail in sliding connection, the second sliding block is arranged on one of the rack 1 and the cover plate 3, and the second guide rail is arranged on the other one of the rack 1 and the cover plate 3.

[0073] The first guide mechanism 8 can be a mechanism for guiding the lifting of the base 21, which is used to enable the base 21 to move stably in the vertical direction without being easily deviated during movement. The second guide mechanism 9 can be a mechanism for guiding the movement of the cover plate 3 in the first direction X, which is used to enable the cover plate 3 to move stably in the first direction X without being easily deviated during movement.

[0074] The first sliding block and the first guide rail in the first guide mechanism 8 can be in sliding connection, in which the first sliding block is arranged on the rack 1, the first sliding block is provided with a sliding hole, the first guide rail is arranged on the base 21, and the first guide rail is slidingly inserted into the sliding hole. Alternatively, the first sliding block in the first guide mechanism 8 is arranged on the base 21, the first guide rail is arranged on the rack 1, and the first guide rail is provided with a sliding groove or a sliding hole, and the first sliding block is slidingly connected in the sliding groove or the sliding hole.

[0075] The second sliding block and the second guide rail in the second guide mechanism 9 can be in sliding connection, in which the second sliding block is arranged on the rack 1, the second guide rail is arranged on the cover plate 3, and the second guide rail is slidingly connected to the second sliding block. Alternatively, the second sliding block in the second guide mechanism 9 is arranged on the base 21, the second guide rail is arranged on the rack 1, and the second guide rail is slidingly connected to the second sliding block.

[0076] In some embodiments, the base 21 is provided with a first in-place detector 10, and a detection end of the first in-place detector 10 faces the placement position of the packaging film.

[0077] The first in-place detector 10 can be a sensor for detecting whether the packaging film is carried on the base 21. By arranging the detection end of the first in-place detector 10 to face the placement position of the packaging film, the first in-place detector 10 can detect whether the packaging film is on the base 21.

[0078] The first in-place detector 10 is in communication connection with the controller, so that if a packaging film is arranged on the base 21, the first in-place detector 10 can transmit information that the packaging film is arranged on the base 21 to the controller, and if no packaging film is arranged on the base 21, the first in-place detector 10 can transmit information that no packaging film is arranged on the base 21 to the controller, so that the controller can control the operation of the battery film stripping device according to whether the packaging film is arranged on the base 21.

[0079] Exemplarily, the first in-place detector 10 can be a photoelectric sensor or a Hall sensor, and a person skilled in the art can select the type of the first in-place detector 10 according to the actual situation.

[0080] In some embodiments, the bottom wall of the placing groove 211 is provided with a downwardly recessed recess 2111, and the first in-place detector 10 is arranged in the recess 2111.

[0081] The recess 2111 can be a space arranged on the placing groove 211 for accommodating the first in-place detector 10, which makes the first in-place detector 10 located therein can conveniently detect whether the packaging film is carried on the placing groove 211, not only can reduce the possibility of the first in-place detector 10 being bumped by the cover plate 3 and other components, but also can reduce the occupation of the space between the cover plate 3 and the base 21.

[0082] By arranging the downwardly recessed recess 2111 on the bottom wall of the placing groove 211, and arranging the first in-place detector 10 in the recess 2111 and setting the detection end thereof upwardly, the first in-place detector 10 can accurately detect whether the packaging film is carried on the placing groove 211.

[0083] In some embodiments, continuing to refer to FIG. 2, the rack 1 is provided with a second in-place detector 101, and the second in-place detector 101 is used to detect the position of the cover plate 3.

[0084] The cover plate 3 can be moved between a waiting position and a working position in the process of moving along the first direction X. The waiting position can be the position of the cover plate 3 when waiting for the base 21 to place the packaging film, at which time the cover plate 3 is away from above the base 21. The working position can be the position of the cover plate 3 when the cover plate 3 is located directly above the base 21, at which time the cover plate 3 can clamp the packaging film with the base 21.

[0085] The second in-place detector 101 can be a sensor for detecting whether the cover plate 3 is located at the waiting position. By connecting the second in-place detector 101 to the rack 1 and setting the detection end of the second in-place detector 101 toward the waiting position, the second in-place detector 101 can detect whether the cover plate 3 is on the waiting position.

[0086] The second in-position detector 101 is in communication connection with the controller, so that the second in-position detector 101 can transmit information to the controller whether the cover plate 3 is in the waiting position, and if the cover plate 3 is in the waiting position, the second in-position detector 101 can transmit information to the controller that the cover plate 3 is in the waiting position, so that the controller can issue a prompt signal to remind the operator that the cover plate 3 has reached the waiting position, facilitating the operator to place the packaging film into the placing groove 211.

[0087] Exemplarily, the second in-position detector 101 can be a photoelectric sensor or a Hall sensor, and a person skilled in the art can select the type of the second in-position detector 101 according to the actual situation.

[0088] In some embodiments, the cover plate 3 is detachably connected to the rack 1, and the base 21 is detachably connected to the output end of the first driving mechanism 22.

[0089] By detachably connecting the cover plate 3 to the rack 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 removing device can be suitable for cutting packaging films of electrode assemblies of different sizes or models by replacing the base 21 and the cover plate 3.

[0090] In some embodiments, continuing to refer to FIG. 3, a limiting structure 102 is arranged on the cover plate 3, the limiting structure 102 is connected between the cover plate 3 and the rack 1, and is used for limiting the relative position of the cover plate 3 and the rack 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, reducing the possibility that the cover plate 3 is detached from the rack 1 due to an acting force.

[0091] Exemplarily, the working process of the battery film removing device is as follows:

[0092] After the operator puts the packaging film containing the electrode assembly into the placing groove 211, the operator presses the double-hand starting switch, the cover plate 3 translates in the first direction X to above the base 21, the base 21 rises to press the packaging film tightly on the cover plate 3, the cutter cuts the packaging film through the passage 31, the operator presses the double-hand starting switch again, the cover plate 3 translates in the first direction X away from the base 21, and the operator takes down the packaging film and tears it from the electrode assembly.

[0093] Some embodiments of the present application also provide a battery monomer production system, which comprises the battery film removing device provided in the above technical solution, and the battery film removing device is used for cutting the packaging film containing the electrode assembly.

[0094] Since the battery film removing device can conveniently cut the packaging film containing the electrode assembly, the battery film removing device has high production efficiency.

[0095] The battery film removing device provided by some embodiments of the present application is shown in FIG. 1, which comprises a rack 1, a base assembly 2, a cover plate 3, a cutter, a controller, a two-hand starting switch and a second driving mechanism 6. The base 21 in the base assembly 2 is provided with a placing groove 211 for bearing the packaging film. The first driving mechanism 22 is used to drive the base 21 to lift. 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 driving mechanism 6. The cover plate 3 is provided with a passage 31. The cutter is arranged above the base 21 and can cut the packaging film through the passage 31. The first in-place detector 10 is arranged in the placing groove 211. The second in-place detector 101 is arranged on the rack 1. The first in-place detector 10, the second in-place detector 101, the two-hand starting switch, the base assembly 2 and the second driving mechanism 6 are all in communication connection with the controller. In the above structure, the cover plate 3 is covered on the base 21 by the way of translation, which reduces the possibility of interference between the cover plate 3 and other components, so that the battery film removing device is convenient to use and is beneficial to improve the production efficiency.

[0096] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; 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 covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery film cutting device for cutting a packaging film containing an electrode assembly, comprising: a frame; a 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 configured to drive the base to move up and down, the base being configured to carry the packaging film; a cover plate movably connected to the frame in a first direction, the cover plate being configured to move to an upper side of the base, the cover plate being provided with a passage, the first direction being perpendicular to the up-and-down direction of the base; a cutter arranged above the base, the cutter being configured to cut the packaging film through the passage.

2. The battery film removing apparatus according to claim 1, wherein The upper side of the base is provided with a placing groove for carrying the packaging film.

3. The battery film removing apparatus according to claim 1 or 2, wherein The passage is provided with a plurality of passages, and the plurality of passages are connected to each other.

4. The battery film removing apparatus according to claim 2, wherein The upper side of the base is provided with a groove, and the groove is arranged on the outer side of the placing groove.

5. The battery film removing apparatus according to any one of claims 1 to 4, wherein The battery film cutting device further comprises a controller and a second driving mechanism, the second driving mechanism being arranged on the frame, the second driving mechanism being connected to the cover plate and configured to drive the cover plate to move, and the controller being in communication connection with the first driving mechanism and the second driving mechanism.

6. The battery film removing apparatus according to claim 5, wherein The battery film cutting device further comprises a two-hand starting switch, the two-hand starting switch being in communication connection with the controller.

7. The battery film removing apparatus according to any one of claims 1 to 6, wherein The battery film cutting device further comprises a first guide mechanism and a second guide mechanism, the first guide mechanism comprising a first sliding block and a first guide rail in sliding connection, the first sliding block being arranged on one of the frame and the base, and the first guide rail being arranged on the other one of the frame and the base; the second guide mechanism comprising a second sliding block and a second guide rail in sliding connection, the second sliding block being arranged on one of the frame and the cover plate, and the second guide rail being arranged on the other one of the frame and the cover plate.

8. The battery film removing apparatus according to claim 2, wherein The base is provided with a first in-place detector, and a detection end of the first in-place detector faces a placing position of the packaging film.

9. The battery film removing apparatus according to claim 8, wherein A bottom wall of the placing groove is provided with a downwardly recessed recess, and the first in-place detector is arranged in the recess.

10. The battery film removal device of any one of claims 1 to 9, wherein, The frame is provided with a second in-place detector, and the second in-place detector is configured to detect a position of the cover plate.

11. The battery film removing apparatus according to any one of claims 1 to 10, wherein The cover plate is detachably connected to the frame, and the base is detachably connected to an output end of the first driving mechanism. 12.A battery production system, comprising the battery film cutting device according to any one of claims 1 to 11, the battery film cutting device being configured to cut a packaging film containing an electrode assembly.

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