A disassembly device and method for disassembling laminated battery core

Abstract

The present invention discloses a stacked battery cell disassembly device and a disassembly method thereof, and relates to the field of lithium battery recycling technology. The stacked battery cell disassembly device includes a frame, a rotating mechanism, a rotating table, a positioning mechanism and a winding mechanism. The rotating mechanism is installed on the frame and connected to the rotating table. The rotating table is used to carry the stacked battery cells. The positioning mechanism is installed on the rotating table. The positioning mechanism is used to position the stacked battery cells. The winding mechanism is installed on the frame and is spaced above the rotating table. Compared with the prior art, the stacked battery cell disassembly device provided by the present invention adopts a winding mechanism installed on the frame and a rotating mechanism connected to the rotating table. Therefore, it can realize the rapid disassembly of the stacked battery cells, has high disassembly efficiency, good disassembly effect, high degree of automation, saves time and effort, and saves labor costs.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery recycling, and in particular to a device and method for disassembling a laminated battery cell. Background Art

[0002] As sales of new energy vehicles continue to climb, the amount of retired batteries is about to enter a period of rapid growth. The current method of recycling batteries generally involves direct crushing and disassembling lithium batteries, first crushing and mixing the positive electrode, negative electrode, separator, and electrolyte together, and then separating them in sequence. This method has a low degree of automation, serious pollution, and high disassembly costs. Therefore, it is necessary to develop an automated and non-destructive disassembly technology to separate the positive and negative electrodes of batteries. In the disassembly process of laminated battery cells, the non-destructive removal of the positive and negative electrodes is a key technical point.

[0003] In view of this, it is particularly important to design and manufacture a stacked cell disassembly device and a disassembly method with high disassembly efficiency, especially in lithium battery recycling. Summary of the Invention

[0004] The object of the present invention is to provide a device for disassembling laminated battery cells, which can realize rapid disassembly of laminated battery cells, has high disassembly efficiency, good disassembly effect, high degree of automation, saves time and effort, and saves labor costs.

[0005] Another object of the present invention is to provide a disassembly method for a laminated battery core disassembly device, which can achieve rapid disassembly of laminated battery cells, has high disassembly efficiency, good disassembly effect, high degree of automation, saves time and effort, and saves labor costs.

[0006] The present invention is achieved by adopting the following technical solutions.

[0007] A stacked battery cell disassembly device comprises a frame, a rotating mechanism, a rotating table, a positioning mechanism and a winding mechanism. The rotating mechanism is installed on the frame and connected to the rotating table. The rotating table is used to carry the stacked battery cells. The positioning mechanism is installed on the rotating table. The positioning mechanism is used to position the stacked battery cells. The winding mechanism is installed on the frame and is spaced above the rotating table. The winding mechanism is used to wind up the diaphragm of the stacked battery cells to expose the positive electrode sheet or the negative electrode sheet compounded in the diaphragm. The rotating mechanism is used to drive the stacked battery cells to rotate in a first direction through the rotating table when the positive electrode sheet is exposed to increase the exposure angle of the positive electrode sheet. The rotating mechanism is also used to drive the stacked battery cells to rotate in a second direction through the rotating table when the negative electrode sheet is exposed to increase the exposure angle of the negative electrode sheet. The first direction is opposite to the second direction.

[0008] Optionally, the rotating mechanism includes a first driving motor, a reducer and a rotating frame, the reducer is fixedly connected to the rotating frame, the first driving motor is connected to the rotating table through the reducer, and the rotating table is rotatably mounted on the rotating frame.

[0009] Optionally, the rotating frame includes a supporting portion, an extension portion and a protrusion portion, the supporting portion is connected to the protrusion portion through the extension portion, the reducer is fixedly connected to the supporting portion, a hinge hole is provided on the protrusion portion, a first rotating shaft is provided at one end of the rotating table, and a second rotating shaft is provided at the other end, the first rotating shaft and the second rotating shaft are coaxially arranged and are both located in the middle of the rotating table, the first rotating shaft is rotatably matched with the hinge hole, and the second rotating shaft is connected to the reducer.

[0010] Optionally, the positioning mechanism includes a driving cylinder, a movable clamping block and a fixed clamping block. The driving cylinder is installed on the rotating table and connected to the movable clamping block. The fixed clamping block is fixedly connected to the rotating table. The driving cylinder is used to drive the movable clamping block close to the fixed clamping block to clamp the laminated battery cell between the movable clamping block and the fixed clamping block.

[0011] Optionally, a first anti-slip stripe is provided on one side of the movable clamping block close to the fixed clamping block, and a second anti-slip stripe is provided on one side of the fixed clamping block close to the movable clamping block. Both the first anti-slip stripe and the second anti-slip stripe are used to increase friction.

[0012] Optionally, the winding mechanism includes a second drive motor and a winding roller, the second drive motor is connected to the winding roller, and the axis of the winding roller and the rotation center line of the rotating platform are located on the same vertical plane.

[0013] Optionally, the winding mechanism also includes an air pump, a ventilation cavity is provided in the winding roller, the air pump is connected to the ventilation cavity, and the circumferential surface of the winding roller is provided with adsorption holes connected to the ventilation cavity. The air pump is used to adsorb the diaphragm on the circumferential surface of the winding roller through the ventilation cavity and the adsorption holes.

[0014] Optionally, the stacked battery cell disassembly device also includes a lifting mechanism and a lifting platform. The lifting mechanism is installed on the frame and connected to the lifting platform. The rotating mechanism is installed on the lifting platform. The lifting mechanism is used to drive the rotating platform to rise through the lifting platform and the rotating mechanism so that the suspended length of the diaphragm remains unchanged.

[0015] Optionally, the stacked battery cell disassembly device also includes a manipulator and a collection box. The manipulator is installed on the frame, and the position of the manipulator corresponds to the position of the collection box. The manipulator is used to remove the positive electrode sheet or the negative electrode sheet when the positive electrode sheet or the negative electrode sheet is exposed and place it in the collection box.

[0016] A disassembly method for a laminated battery cell disassembly device is used for using the above-mentioned laminated battery cell disassembly device, and the disassembly method for the laminated battery cell disassembly device includes: placing the laminated battery cell on a rotating table and positioning the laminated battery cell using a positioning mechanism; leading the diaphragm located on one side of the laminated battery cell to a winding mechanism; winding the diaphragm using the winding mechanism to expose the positive electrode sheet or the negative electrode sheet compounded in the diaphragm; when the positive electrode sheet is exposed, driving the rotating table to rotate in a first direction using the rotating mechanism, and removing the positive electrode sheet; when the negative electrode sheet is exposed, driving the rotating table to rotate in a second direction using the rotating mechanism, and removing the negative electrode sheet.

[0017] The laminated battery core disassembly device and disassembly method provided by the present invention have the following beneficial effects:

[0018] The present invention provides a stacked battery cell disassembly device, wherein a rotating mechanism is mounted on a frame and connected to a rotating table, the rotating table is used to carry the stacked battery cells, a positioning mechanism is mounted on the rotating table, the positioning mechanism is used to position the stacked battery cells, a winding mechanism is mounted on the frame and spaced above the rotating table, the winding mechanism is used to wind up the separator of the stacked battery cells to expose the positive electrode sheet or the negative electrode sheet compounded in the separator, the rotating mechanism is used to drive the stacked battery cells to rotate in a first direction via the rotating table when the positive electrode sheet is exposed, thereby increasing the exposure angle of the positive electrode sheet, and the rotating mechanism is also used to drive the stacked battery cells to rotate in a second direction via the rotating table when the negative electrode sheet is exposed, thereby increasing the exposure angle of the negative electrode sheet, the first direction being opposite to the second direction. Compared with the prior art, the stacked battery cell disassembly device provided by the present invention can achieve rapid disassembly of the stacked battery cells due to the use of the winding mechanism mounted on the frame and the rotating mechanism connected to the rotating table, thereby achieving high disassembly efficiency, good disassembly effect, high degree of automation, saving time and effort, and saving labor costs.

[0019] The disassembly method of the laminated battery core disassembly device provided by the present invention can realize the rapid disassembly of the laminated battery core, has high disassembly efficiency, good disassembly effect, high degree of automation, saves time and labor, and saves labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of a device for disassembling a laminated battery cell according to an embodiment of the present invention;

[0022] Figure 2A schematic structural diagram of a laminated battery cell used in the laminated battery cell disassembly device provided in an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of the stacked cell disassembly device provided in an embodiment of the present invention, wherein the lifting mechanism is connected to the rotating mechanism via a lifting platform;

[0024] Figure 4 A schematic diagram of the structure of the laminated battery core disassembly device provided in an embodiment of the present invention when the positive electrode sheet of the laminated battery core is exposed;

[0025] Figure 5 A schematic diagram of the structure of the laminated battery cell disassembly device provided in an embodiment of the present invention when the negative electrode sheet of the laminated battery cell is exposed;

[0026] Figure 6 A schematic diagram of the structure of the connection between the rotating mechanism and the rotating table in the laminated battery core disassembly device provided by an embodiment of the present invention;

[0027] Figure 7 A schematic structural diagram of a positioning mechanism in a laminated battery core disassembly device provided in an embodiment of the present invention;

[0028] Figure 8 A schematic structural diagram of a winding mechanism from one perspective in a stacked battery core disassembly device provided in an embodiment of the present invention;

[0029] Figure 9 A schematic structural diagram of a winding mechanism from another perspective in a laminated battery core disassembly device provided in an embodiment of the present invention;

[0030] Figure 10 A flowchart of the steps of the disassembly method of the laminated battery core disassembly device provided in an embodiment of the present invention.

[0031] Icons: 100-Laminated cell disassembly device; 110-Frame; 120-Rotation mechanism; 121-First drive motor; 122-Reducer; 123-Rotation frame; 1231-Supporting portion; 1232-Extension portion; 1233-Protrusion; 1234-Hinged hole; 130-Rotation table; 131-First rotating shaft; 132-Second rotating shaft; 140-Positioning mechanism; 141-Drive cylinder; 142-Moving clamp; 143- Fixed clamping block; 144-first anti-slip stripe; 145-second anti-slip stripe; 150-winding mechanism; 151-second drive motor; 152-winding roller; 153-air pump; 154-ventilation cavity; 155-adsorption hole; 160-lifting mechanism; 170-lifting platform; 180-manipulator; 190-collection box; 200-laminated battery cell; 210-diaphragm; 220-positive electrode sheet; 230-negative electrode sheet; 240-folding cavity. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] In the description of the present invention, it should be noted that the terms "inner," "outer," "upper," "lower," and "horizontal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0036] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0038] Please refer to Figures 1 to 5The embodiment of the present invention provides a laminated battery cell disassembly device 100 for disassembling and recycling laminated battery cells 200. The device can quickly disassemble the laminated battery cells 200, with high disassembly efficiency, good disassembly effect, high degree of automation, and save time, labor, and labor costs.

[0039] It should be noted that the laminated battery disassembly device 100 is used in the disassembly process of the laminated battery 200. The laminated battery 200 includes a diaphragm 210, multiple positive electrode sheets 220 and multiple negative electrode sheets 230, wherein the diaphragm 210 is folded in a Z shape to form a multi-layer folded cavity 240, and multiple positive electrode sheets 220 and multiple negative electrode sheets 230 are alternately pasted in the multi-layer folded cavity 240. The laminated battery disassembly device 100 is used to roll up the diaphragm 210 and take out the positive electrode sheet 220 and the negative electrode sheet 230 located in the folding cavity 240 to realize the detachment and recovery of the diaphragm 210, the positive electrode sheet 220 and the negative electrode sheet 230, thereby realizing the rapid disassembly of the laminated battery 200 and further realizing the efficient recovery of the lithium battery.

[0040] The stacked battery cell disassembly device 100 includes a frame 110, a rotating mechanism 120, a rotating table 130, a positioning mechanism 140, a winding mechanism 150, a lifting mechanism 160, a lifting table 170, a manipulator 180, and a collection box 190. The rotating mechanism 120 is mounted on the frame 110 and connected to the rotating table 130. The rotating table 130 is used to support the stacked battery cells 200, and the rotating mechanism 120 can drive the stacked battery cells 200 to rotate through the rotating table 130. The positioning mechanism 140 is mounted on the rotating table 130 and is used to position the stacked battery cells 200 to prevent them from falling off the rotating table 130. The winding mechanism 150 is installed on the frame 110 and is spaced above the rotating table 130. The winding mechanism 150 is used to wind the diaphragm 210 of the laminated battery cell 200 to expose the positive electrode sheet 220 or the negative electrode sheet 230 compounded in the diaphragm 210. The rotating mechanism 120 is used to drive the laminated battery cell 200 to rotate in a first direction through the rotating table 130 when the positive electrode sheet 220 is exposed, so as to increase the exposure angle of the positive electrode sheet 220 and facilitate the removal of the positive electrode sheet 220; the rotating mechanism 120 is also used to drive the laminated battery cell 200 to rotate in a second direction through the rotating table 130 when the negative electrode sheet 230 is exposed, so as to increase the exposure angle of the negative electrode sheet 230 and facilitate the removal of the negative electrode sheet 230; the first direction is opposite to the second direction, and the rotating mechanism 120 first drives the laminated battery cell 200 to rotate in the first direction through the rotating table 130. After the positive electrode sheet 220 is removed, the rotating mechanism 120 drives the laminated battery cell 200 to rotate in the second direction through the rotating table 130 to facilitate the removal of the negative electrode sheet 230. This cycle is repeated to achieve rapid disassembly of the laminated battery cell 200, high disassembly efficiency, good disassembly effect, high degree of automation, saving time and effort, and saving labor costs.

[0041] It is worth noting that the manipulator 180 is installed on the frame 110, and the position of the manipulator 180 corresponds to the position of the collection box 190. The manipulator 180 is used to take out the positive electrode sheet 220 or the negative electrode sheet 230 when the positive electrode sheet 220 or the negative electrode sheet 230 is exposed and place it in the collection box 190, so as to realize the automated and non-destructive disassembly of the positive electrode sheet 220 and the negative electrode sheet 230 and improve the disassembly efficiency. Specifically, there are two manipulators 180 and two collection boxes 190. Both manipulators 180 are installed on the frame 110 and are arranged on both sides of the rotating table 130. The position of each manipulator 180 corresponds to the position of a collection box 190. One manipulator 180 is used to take out the positive electrode sheet 220 when the positive electrode sheet 220 is exposed and place it in a collection box 190. The other manipulator 180 is used to take out the negative electrode sheet 230 when the negative electrode sheet 230 is exposed and place it in another collection box 190. In this way, the positive electrode sheet 220 and the negative electrode sheet 230 are neatly stacked after disassembly, which is convenient for subsequent processing.

[0042] In this embodiment, the robot 180 uses a suction cup to vacuum the electrode sheet (positive electrode sheet 220 or negative electrode sheet 230) to remove the electrode sheet from the diaphragm 210 and transfer and collect it. However, this is not limited to this. In other embodiments, the robot 180 can also clamp the electrode sheet to achieve removal, transfer and collection of the electrode sheet. The type of robot 180 is not specifically limited.

[0043] It should be noted that the lifting mechanism 160 is installed on the frame 110 and connected to the lifting platform 170. The rotating mechanism 120 is installed on the lifting platform 170. The lifting mechanism 160 is used to drive the rotating platform 130 to rise through the lifting platform 170 and the rotating mechanism 120, thereby driving the laminated battery cell 200 to rise, so that the suspended length of the diaphragm 210 remains unchanged. Specifically, during the disassembly of the laminated battery cell 200, the winding mechanism 150 continuously winds the diaphragm 210, and the manipulator 180 continuously removes the positive electrode sheet 220 and the negative electrode sheet 230, so that the thickness of the laminated battery cell 200 on the rotating table 130 is continuously reduced. In order to ensure that the suspended length of the diaphragm 210 between the winding mechanism 150 and the laminated battery cell 200 remains unchanged, the lifting mechanism 160 is controlled to drive the laminated battery cell 200 to continuously rise, and the rising speed is equal to the thickness reduction speed of the laminated battery cell 200, so as to ensure that each time the rotating mechanism 120 drives the laminated battery cell 200 to rotate along the first direction or the second direction, the exposed angle of each positive electrode sheet 220 or negative electrode sheet 230 is the same, so that the manipulator 180 can remove the positive electrode sheet 220 or negative electrode sheet 230 from the same position each time, prevent the manipulator 180 from interfering with the diaphragm 210, and ensure the disassembly effect.

[0044] In this embodiment, the lifting mechanism 160 drives the lifting platform 170 to move up and down by cooperating with the motor and the screw nut transmission structure, but it is not limited to this. In other embodiments, the lifting mechanism 160 can be a hydraulic cylinder or a pneumatic cylinder, and the type of the lifting mechanism 160 is not specifically limited.

[0045] Please refer to Figure 6 The rotating mechanism 120 includes a first drive motor 121, a reducer 122 and a rotating frame 123. The reducer 122 is fixedly connected to the rotating frame 123. The first drive motor 121 is connected to the rotating table 130 through the reducer 122. The first drive motor 121 is used to drive the rotating table 130 to rotate, and the reducer 122 is used to increase the torque and reduce the speed. The rotating table 130 is rotatably mounted on the rotating frame 123. The rotating frame 123 can limit the rotating table 130 to prevent the rotating table 130 from detaching from the reducer 122. The rotating frame 123 is fixedly connected to the lifting platform 170. The lifting mechanism 160 can drive the rotating frame 123 to rise and fall through the lifting platform 170, thereby driving the entire rotating mechanism 120 and the rotating table 130 to rise and fall.

[0046] The rotating frame 123 includes a support portion 1231, an extension portion 1232, and a protrusion 1233. The support portion 1231 is connected to the protrusion 1233 via the extension portion 1232. In this embodiment, the support portion 1231, the extension portion 1232, and the protrusion 1233 are integrally formed to enhance connection strength. The reducer 122 is fixedly connected to the support portion 1231, which is in turn fixedly connected to the lifting platform 170. The support portion 1231 supports and secures the reducer 122 and the first drive motor 121. The raised portion 1233 is provided with a hinge hole 1234, and a first rotating shaft 131 is provided at one end of the rotating table 130, and a second rotating shaft 132 is provided at the other end. The first rotating shaft 131 and the second rotating shaft 132 are coaxially arranged and are both located in the middle of the rotating table 130. The first rotating shaft 131 rotates in coordination with the hinge hole 1234, and the second rotating shaft 132 is connected to the reducer 122. The first driving motor 121 can drive the second rotating shaft 132 to rotate through the reducer 122, thereby driving the laminated battery cell 200 to rotate through the rotating table 130, and then driving the first rotating shaft 131 to rotate relative to the hinge hole 1234. The raised portion 1233 can limit the rotating table 130 through the cooperation of the first rotating shaft 131 and the hinge hole 1234 to ensure that the rotation process of the rotating table 130 is stable and reliable.

[0047] Please refer to Figure 7The positioning mechanism 140 includes a driving cylinder 141, a dynamic clamping block 142 and a fixed clamping block 143. The driving cylinder 141 is installed on the rotating table 130 and is connected to the dynamic clamping block 142. The driving cylinder 141 can drive the dynamic clamping block 142 to move relative to the rotating table 130. The fixed clamping block 143 is fixedly connected to the rotating table 130. The driving cylinder 141 is used to drive the dynamic clamping block 142 to approach the fixed clamping block 143, so as to clamp the laminated battery core 200 between the dynamic clamping block 142 and the fixed clamping block 143, thereby achieving the positioning of the laminated battery core 200 and preventing the laminated battery core 200 from escaping from the rotating table 130. Specifically, the height of the dynamic clamping block 142 and the fixed clamping block 143 is greater than or equal to the initial thickness of the laminated battery core 200, so as to better position the laminated battery core 200 and further prevent the laminated battery core 200 from escaping from the rotating table 130.

[0048] In this embodiment, a first anti-slip stripe 144 is provided on the side of the movable clamping block 142 close to the fixed clamping block 143, and a second anti-slip stripe 145 is provided on the side of the fixed clamping block 143 close to the movable clamping block 142. The first anti-slip stripe 144 and the second anti-slip stripe 145 are both used to contact the side of the laminated battery cell 200 to increase the friction between the movable clamping block 142 or the fixed clamping block 143 and the laminated battery cell 200. In this way, firstly, it can prevent the diaphragm 210 from pulling up multiple layers of pole pieces at once due to excessive tension during the winding process, and secondly, it can prevent the diaphragm 210 or the pole piece from slipping during the rotation and tilting process of the laminated battery cell 200.

[0049] In this embodiment, the number of driving cylinders 141, movable clamping blocks 142 and fixed clamping blocks 143 are all two, wherein each driving cylinder 141 is connected to a movable clamping block 142, one movable clamping block 142 and a fixed clamping block 143 are arranged opposite to each other, and another movable clamping block 142 and another fixed clamping block 143 are arranged opposite to each other, and the connecting line between one movable clamping block 142 and a fixed clamping block 143 is perpendicular to the connecting line between the other movable clamping block 142 and the other fixed clamping block 143 to improve the positioning effect.

[0050] Please refer to Figure 8 and Figure 9The winding mechanism 150 includes a second drive motor 151, a winding roller 152, and an air pump 153. The second drive motor 151 is connected to the winding roller 152 and is used to drive the winding roller 152 to rotate so that the diaphragm 210 is wound around the winding roller 152, thereby achieving the winding and recovery of the diaphragm 210. Specifically, the axis of the winding roller 152 and the rotation center line of the rotating table 130 are located on the same vertical plane, and the laminated battery cell 200 is located in the middle of the rotating table 130 to ensure that the winding roller 152 is always located directly above the laminated battery cell 200. In this way, when the rotating mechanism 120 drives the laminated battery cell 200 to rotate along the first direction to the first extreme position, the exposed angle of the positive electrode sheet 220 is the same as the exposed angle of the negative electrode sheet 230 when the rotating mechanism 120 drives the laminated battery cell 200 to rotate along the second direction to the second extreme position, so that the entire disassembly process is balanced and stable, and it is convenient to remove the positive electrode sheet 220 and the negative electrode sheet 230.

[0051] In this embodiment, a ventilation cavity 154 is provided in the winding roller 152, the air pump 153 is connected to the ventilation cavity 154, and the circumferential surface of the winding roller 152 is provided with adsorption holes 155 connected to the ventilation cavity 154. The air pump 153 is used to suck air to adsorb the diaphragm 210 on the circumferential surface of the winding roller 152 through the ventilation cavity 154 and the adsorption holes 155, thereby realizing vacuum adsorption of the innermost layer of the diaphragm 210 wound around the winding roller 152, thereby fixing the relative position of the diaphragm 210 and the winding roller 152, preventing the diaphragm 210 from being displaced relative to the winding roller 152, and ensuring that the winding process is stable and reliable.

[0052] Please refer to Figure 10 , an embodiment of the present invention further provides a disassembly method of a laminated battery core disassembly device, comprising the following steps:

[0053] Step S110 : placing the laminated battery core 200 on the rotating table 130 , and positioning the laminated battery core 200 using the positioning mechanism 140 .

[0054] It should be noted that in step S110, the rotating table 130 is first rotated to a horizontal position, and the laminated battery cell 200 is placed in the middle of the rotating table 130 so that one side of the laminated battery cell 200 is against the fixed clamping block 143; then the driving cylinder 141 is started to drive the dynamic clamping block 142 to approach the fixed clamping block 143, so as to clamp the laminated battery cell 200 between the dynamic clamping block 142 and the fixed clamping block 143, thereby completing the positioning of the laminated battery cell 200.

[0055] Step S120 : Leading the separator 210 located on one side of the laminated battery core 200 to the winding mechanism 150 .

[0056] It should be noted that in step S120, the diaphragm 210 is first pulled out from the side of the laminated battery cell 200 away from the rotating table 130, and the diaphragm 210 is pulled out to one circle outside the winding roller 152. During this process, the positive electrode sheet 220 and the negative electrode sheet 230 clamped in the pulled-out part of the diaphragm 210 are manually removed; then the air pump 153 is started to generate negative pressure to vacuum adsorb the diaphragm 210 and fix the relative position of the diaphragm 210 and the winding roller 152.

[0057] Step S130 : The separator 210 is rolled up by the rolling mechanism 150 so as to expose the positive electrode sheet 220 or the negative electrode sheet 230 compounded in the separator 210 .

[0058] It should be noted that in step S130, the second drive motor 151 is started to drive the winding roller 152 to rotate, thereby winding the diaphragm 210. During this process, the winding roller 152 continuously pulls the diaphragm 210 out of the laminated battery cell 200, so that the multi-layer folded cavity 240 is opened in sequence, thereby exposing the multiple positive electrode sheets 220 and the multiple negative electrode sheets 230 sandwiched in the diaphragm 210 in sequence, making it easier to remove and recycle them. At the same time, the lifting mechanism 160 continuously drives the laminated battery cell 200 to rise, and the rising speed is equal to the thickness reduction speed of the laminated battery cell 200, so as to ensure that the suspended length of the diaphragm 210 between the winding mechanism 150 and the laminated battery cell 200 remains unchanged.

[0059] Step S140: When the positive electrode sheet 220 is exposed, the rotating mechanism 120 drives the rotating table 130 to rotate along the first direction and remove the positive electrode sheet 220; when the negative electrode sheet 230 is exposed, the rotating mechanism 120 drives the rotating table 130 to rotate along the second direction and remove the negative electrode sheet 230.

[0060] It should be noted that in step S140, when the diaphragm 210 is wound up by the winding roller 152 to expose the positive electrode sheet 220, the rotating mechanism 120 is used to drive the rotating table 130 to rotate in the first direction to increase the exposure angle of the positive electrode sheet 220. When the rotating mechanism 120 drives the laminated battery cell 200 to rotate to the first extreme position, the exposure angle of the positive electrode sheet 220 is the largest. At this time, the positive electrode sheet 220 is removed from the diaphragm 210 by the manipulator 180 and placed in the collection box 190, completing the disassembly and recycling of one positive electrode sheet 220; when the diaphragm 210 is wound up by the winding roller 152, In the process of exposing the negative electrode sheet 230, the rotating mechanism 120 is used to drive the rotating table 130 to rotate in the second direction to increase the exposure angle of the negative electrode sheet 230. When the rotating mechanism 120 drives the laminated battery cell 200 to rotate to the second extreme position, the exposure angle of the negative electrode sheet 230 is the largest. At this time, the robot 180 is used to remove the negative electrode sheet 230 from the diaphragm 210 and place it in the collection box 190, completing the disassembly and recycling of one negative electrode sheet 230; this cycle is repeated until all the positive electrode sheets 220 and negative electrode sheets 230 in the entire laminated battery cell 200 are taken out, thereby realizing the rapid disassembly and recycling of the laminated battery cell 200.

[0061] The stacked cell disassembly device 100 provided in the embodiment of the present invention comprises a rotating mechanism 120 mounted on a frame 110 and connected to a rotating platform 130. The rotating platform 130 is used to carry the stacked cell 200. The positioning mechanism 140 is mounted on the rotating platform 130. The positioning mechanism 140 is used to position the stacked cell 200. The winding mechanism 150 is mounted on the frame 110 and spaced above the rotating platform 130. The winding mechanism 150 is used to roll the diaphragm 210 of the stacked cell 200. The stacked battery cell 200 is wound up to expose the positive electrode sheet 220 or the negative electrode sheet 230 compounded within the diaphragm 210. The rotating mechanism 120 is used to drive the stacked battery cell 200 to rotate in a first direction via the rotating table 130 when the positive electrode sheet 220 is exposed, thereby increasing the exposure angle of the positive electrode sheet 220. The rotating mechanism 120 is also used to drive the stacked battery cell 200 to rotate in a second direction via the rotating table 130 when the negative electrode sheet 230 is exposed, thereby increasing the exposure angle of the negative electrode sheet 230. The first direction is opposite to the second direction. Compared with the prior art, the stacked battery cell disassembly device 100 provided by the present invention utilizes a winding mechanism 150 mounted on the frame 110 and a rotating mechanism 120 connected to the rotating table 130. Therefore, the stacked battery cell 200 can be quickly disassembled, with high disassembly efficiency, good disassembly effect, a high degree of automation, and time and labor savings, thereby saving labor costs. This makes the disassembly method of the stacked battery cell disassembly device automatic and efficient, and can effectively improve the efficiency of lithium battery recycling.

[0062] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for disassembling laminated battery cells, characterized in that: The invention comprises a frame (110), a rotating mechanism (120), a rotating platform (130), a positioning mechanism (140) and a winding mechanism (150), wherein the rotating mechanism (120) is mounted on the frame (110) and connected to the rotating platform (130), the rotating platform (130) is used to carry the laminated battery core (200), the positioning mechanism (140) is mounted on the rotating platform (130), the positioning mechanism (140) is used to position the laminated battery core (200), the winding mechanism (150) is mounted on the frame (110) and is spaced above the rotating platform (130), the winding mechanism (150) is used to position the laminated battery core (200), The diaphragm (210) of the battery cell (200) is rolled up to expose the positive electrode sheet (220) or the negative electrode sheet (230) compounded in the diaphragm (210); the rotating mechanism (120) is used to drive the laminated battery cell (200) to rotate in a first direction via the rotating platform (130) when the positive electrode sheet (220) is exposed, so as to increase the exposure angle of the positive electrode sheet (220); the rotating mechanism (120) is also used to drive the laminated battery cell (200) to rotate in a second direction via the rotating platform (130) when the negative electrode sheet (230) is exposed, so as to increase the exposure angle of the negative electrode sheet (230); the first direction is opposite to the second direction; The positioning mechanism (140) includes a driving cylinder (141), a dynamic clamping block (142) and a fixed clamping block (143). The heights of the dynamic clamping block (142) and the fixed clamping block (143) are greater than or equal to the initial thickness of the laminated battery core (200). The driving cylinder (141) is installed on the rotating table (130) and connected to the dynamic clamping block (142). The fixed clamping block (143) is fixedly connected to the rotating table (130). The driving cylinder (141) is used to drive the dynamic clamping block (142) to rotate. 42) close to the fixed clamping block (143) to clamp the laminated battery core (200) between the movable clamping block (142) and the fixed clamping block (143); a first anti-slip stripe (144) is provided on a side of the movable clamping block (142) close to the fixed clamping block (143), and a second anti-slip stripe (145) is provided on a side of the fixed clamping block (143) close to the movable clamping block (142), and both the first anti-slip stripe (144) and the second anti-slip stripe (145) are used to increase friction; The stacked battery core disassembly device further comprises a lifting mechanism (160) and a lifting platform (170), wherein the lifting mechanism (160) is mounted on the frame (110) and connected to the lifting platform (170), and the rotating mechanism (120) is mounted on the lifting platform (170). The lifting mechanism (160) is used to drive the rotating platform (130) to rise via the lifting platform (170) and the rotating mechanism (120), so as to keep the suspended length of the diaphragm (210) unchanged.

2. The stacked battery core disassembly device according to claim 1, characterized in that: The rotating mechanism (120) includes a first driving motor (121), a reducer (122) and a rotating frame (123), wherein the reducer (122) is fixedly connected to the rotating frame (123), the first driving motor (121) is connected to the rotating platform (130) via the reducer (122), and the rotating platform (130) is rotatably mounted on the rotating frame (123).

3. The stacked battery core disassembly device according to claim 2, characterized in that: The rotating frame (123) includes a supporting portion (1231), an extending portion (1232) and a protruding portion (1233); the supporting portion (1231) is connected to the protruding portion (1233) via the extending portion (1232); the reducer (122) is fixedly connected to the supporting portion (1231); the protruding portion (1233) is provided with a hinge hole (1234); a first rotating shaft (131) is provided at one end of the rotating platform (130); and a second rotating shaft (132) is provided at the other end; the first rotating shaft (131) and the second rotating shaft (132) are coaxially arranged and are both located in the middle of the rotating platform (130); the first rotating shaft (131) is rotatably engaged with the hinge hole (1234); and the second rotating shaft (132) is connected to the reducer (122).

4. The device for disassembling laminated battery cells according to claim 1, wherein: The winding mechanism (150) comprises a second drive motor (151) and a winding roller (152), wherein the second drive motor (151) is connected to the winding roller (152), and the axis of the winding roller (152) and the rotation center line of the rotating platform (130) are located on the same vertical plane.

5. The stacked battery core disassembly device according to claim 4, characterized in that: The winding mechanism (150) further includes an air pump (153), a ventilation cavity (154) is provided in the winding roller (152), the air pump (153) is communicated with the ventilation cavity (154), and an adsorption hole (155) is provided on the circumference of the winding roller (152) and is communicated with the ventilation cavity (154). The air pump (153) is used to adsorb the diaphragm (210) on the circumference of the winding roller (152) through the ventilation cavity (154) and the adsorption hole (155).

6. The device for disassembling laminated battery cells according to claim 1, characterized in that: The stacked battery core disassembly device further comprises a manipulator (180) and a collection box (190); the manipulator (180) is mounted on the frame (110); the position of the manipulator (180) corresponds to the position of the collection box (190); the manipulator (180) is used to remove the positive electrode sheet (220) or the negative electrode sheet (230) when the positive electrode sheet (220) or the negative electrode sheet (230) is exposed and place the positive electrode sheet (220) or the negative electrode sheet (230) in the collection box (190).

7. A method for disassembling a laminated battery core disassembly device, characterized in that: A device for disassembling a laminated battery cell according to any one of claims 1 to 6, comprising: Placing the laminated battery core (200) on the rotating platform (130), and positioning the laminated battery core (200) using the positioning mechanism (140); Leading the diaphragm (210) located on one side of the laminated battery core (200) to the winding mechanism (150); Utilizing the winding mechanism (150) to wind up the diaphragm (210) so as to expose the positive electrode sheet (220) or the negative electrode sheet (230) compounded in the diaphragm (210); When the positive electrode sheet (220) is exposed, the rotating mechanism (120) is used to drive the rotating platform (130) to rotate along the first direction, and the positive electrode sheet (220) is taken out; when the negative electrode sheet (230) is exposed, the rotating mechanism (120) is used to drive the rotating platform (130) to rotate along the second direction, and the negative electrode sheet (230) is taken out.

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