An electrode sheet separating device and a stacked electrode cell recycling apparatus
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- MIRATTERY CO LTD
- Filing Date
- 2023-06-06
- Publication Date
- 2026-06-26
Smart Images
Figure CN116979167B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of lithium battery recycling technology, and more specifically, to an electrode separation device and a stacked cell recycling equipment. Background Technology
[0002] Currently, most companies use a mixed-then-separated recycling method for retired lithium batteries. This involves first crushing and mixing the positive electrode, negative electrode, separator, and electrolyte together, and then separating them sequentially. However, this recycling method has high requirements for the separation of various resources in the later stages, making it difficult to implement and resulting in high separation costs and long separation times. Furthermore, the crushing of the positive and negative electrode sheets can easily cause loss of battery materials, leading to a low battery material recovery rate.
[0003] In view of this, designing and manufacturing an electrode separation device with high separation efficiency and a stacked cell recycling device is particularly important, especially in lithium battery recycling. Summary of the Invention
[0004] The purpose of this invention is to provide an electrode separation device that can achieve rapid separation of electrode and separator, improve separation efficiency, reduce separation cost, and avoid loss of battery materials, thus ensuring battery material recycling rate.
[0005] Another objective of this invention is to provide a stacked battery cell recycling device that can achieve rapid separation of electrode sheets and separators, improve separation efficiency, reduce separation costs, and avoid battery material loss, thereby ensuring battery material recycling rate.
[0006] The present invention is achieved by the following technical solution.
[0007] An electrode separation device includes a frame, a material platform, a positioning mechanism, a film pulling mechanism, a clamping mechanism, and an electrode roller mechanism. The positioning mechanism is mounted on the material platform and is used to position the stacked battery cells placed on the material platform. The film pulling mechanism, the clamping mechanism, and the electrode roller mechanism are all mounted on the frame. The film pulling mechanism is used to pull the separator of the stacked battery cells to a preset length to form a preset separator segment with a first electrode attached. The clamping mechanism is used to clamp and fix the end of the preset separator segment away from the film pulling mechanism. The electrode roller mechanism is used to roll relative to the preset separator segment so that the first electrode is detached from the preset separator segment.
[0008] Optionally, the electrode roller mechanism includes a first driving member, a sliding shaft, and a roller. The first driving member is mounted on the frame and is connected to the sliding shaft. The roller is rotatably sleeved on the sliding shaft. The frame has a clearance groove for the first electrode to fall. A first slide rail and a second slide rail are arranged opposite to each other on both sides of the clearance groove. One end of the sliding shaft is slidably engaged with the first slide rail, and the other end is slidably engaged with the second slide rail. The first driving member is used to drive the sliding shaft to slide back and forth along the extension direction of the first and second slide rails. The roller is used to roll relative to a preset diaphragm section.
[0009] Optionally, there are multiple sliding shafts and rollers, each roller is rotatably fitted around a sliding shaft, and the multiple sliding shafts are arranged in parallel and spaced apart, with adjacent sliding shafts fixedly connected by a connecting rod.
[0010] Optionally, the positioning mechanism includes a second driving member, a movable clamping block, and a fixed clamping block. The second driving member is mounted on the material platform and is connected to the movable clamping block in a driving manner. The fixed clamping block is fixedly connected to the material platform. The second driving member is used to drive the movable clamping block closer to the fixed clamping block so as to clamp the stacked battery cells between the movable clamping block and the fixed clamping block.
[0011] Optionally, the membrane stretching mechanism includes a third drive unit, a lifting platform, a fourth drive unit, a mounting platform, and a first electric gripper. The third drive unit is mounted on the frame and connected to the lifting platform. The third drive unit is used to drive the lifting platform to rise or fall in a first direction. The fourth drive unit is mounted on the lifting platform and connected to the mounting platform. The first electric gripper is mounted on the mounting platform. The fourth drive unit is used to drive the first electric gripper to move in a second direction through the mounting platform to move away from the stacked battery cells. The first direction and the second direction are perpendicular to each other. The first electric gripper is used to hold a preset diaphragm segment.
[0012] Optionally, the clamping mechanism includes a fifth drive member, a telescopic platform, and a second electric gripper. The fifth drive member is mounted on the frame and connected to the telescopic platform. The second electric gripper is mounted on the telescopic platform. The fifth drive member is used to drive the second electric gripper to move in a third direction via the telescopic platform. The second electric gripper is used to clamp a preset diaphragm segment.
[0013] Optionally, the electrode separation device further includes a cutting mechanism, which includes a sixth drive member and a cutter. The sixth drive member is mounted on the frame and is connected to the cutter drive. The sixth drive member is used to drive the cutter down to cut the preset diaphragm segment off the diaphragm.
[0014] Optionally, the electrode separation device further includes a first robotic arm, a vacuum suction cup, a film-tearing mechanism, and a collection box. The first robotic arm is mounted on the frame and connected to the vacuum suction cup. The vacuum suction cup is used to adsorb the second electrode adhered to the preset diaphragm segment. The first robotic arm is used to drive the second electrode and the preset diaphragm segment to a preset position via the vacuum suction cup. The film-tearing mechanism is mounted on the frame and is used to tear the preset diaphragm segment off the second electrode. The first robotic arm is also used to drive the second electrode to move above the collection box via the vacuum suction cup. The vacuum suction cup is also used to release the second electrode so that it falls into the collection box.
[0015] Optionally, the film-tearing mechanism includes a second robotic arm and a third electric gripper. The second robotic arm is mounted on the frame and connected to the third electric gripper, which is used to hold one end of a preset diaphragm segment.
[0016] A stacked battery cell recycling device includes the aforementioned electrode separation device. The electrode separation device includes a frame, a material platform, a positioning mechanism, a film pulling mechanism, a clamping mechanism, and an electrode roller mechanism. The positioning mechanism is mounted on the material platform and is used to position the stacked battery cells placed on the material platform. The film pulling mechanism, clamping mechanism, and electrode roller mechanism are all mounted on the frame. The film pulling mechanism is used to pull the diaphragm of the stacked battery cell to a preset length to form a preset diaphragm segment with a first electrode attached. The clamping mechanism is used to clamp and fix the end of the preset diaphragm segment away from the film pulling mechanism. The electrode roller mechanism is used to roll relative to the preset diaphragm segment so that the first electrode falls off the preset diaphragm segment.
[0017] The electrode separation device and the stacked battery cell recycling equipment provided by this invention have the following beneficial effects:
[0018] The electrode separation device provided by this invention includes a positioning mechanism mounted on a material platform for positioning stacked battery cells placed on the platform. A film-pulling mechanism, a clamping mechanism, and an electrode roller mechanism are all mounted on a frame. The film-pulling mechanism pulls the separator of the stacked battery cells to a preset length to form a preset separator segment with a first electrode adhered to it. The clamping mechanism clamps and fixes the end of the preset separator segment away from the film-pulling mechanism. The electrode roller mechanism rolls relative to the preset separator segment to detach the first electrode from it. Compared with the prior art, the electrode separation device provided by this invention, due to the use of a film-pulling mechanism mounted on the frame and an electrode roller mechanism rolling relative to the preset separator segment, can achieve rapid separation of the electrode and separator, improve separation efficiency, reduce separation costs, and avoid battery material loss, thus ensuring battery material recovery rate.
[0019] The stacked battery cell recycling equipment provided by this invention includes an electrode separation device, which can realize the rapid separation of electrode and separator, improve separation efficiency, reduce separation cost, and avoid battery material loss, thus ensuring battery material recycling rate. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the electrode separation device provided in an embodiment of the present invention from a first-view perspective;
[0022] Figure 2 This is a schematic diagram of the electrode separation device provided in an embodiment of the present invention from a second perspective.
[0023] Figure 3 This is a schematic diagram of the electrode separation device provided in an embodiment of the present invention from a third perspective.
[0024] Figure 4 A schematic diagram of the structure of the stacked battery cell when the preset diaphragm section is pulled out in the electrode separation device provided in the embodiment of the present invention;
[0025] Figure 5 This is a schematic diagram of the electrode roller mechanism in the electrode separation device provided in an embodiment of the present invention;
[0026] Figure 6 This is a schematic diagram of the positioning mechanism in the electrode separation device provided in an embodiment of the present invention;
[0027] Figure 7 This is a schematic diagram of the film-pulling mechanism in the electrode separation device provided in an embodiment of the present invention;
[0028] Figure 8 This is a schematic diagram of the clamping mechanism in the electrode separation device provided in an embodiment of the present invention;
[0029] Figure 9 This is a schematic diagram of the cutting mechanism in the electrode separation device provided in an embodiment of the present invention;
[0030] Figure 10 This is a schematic diagram of the film-tearing mechanism in the electrode separation device provided in an embodiment of the present invention.
[0031] Icons: 100 - Electrode separation device; 110 - Frame; 111 - Clearance groove; 112 - First slide rail; 113 - Second slide rail; 120 - Material table; 130 - Positioning mechanism; 131 - Second drive component; 132 - Moving clamp; 133 - Fixed clamp; 140 - Film pulling mechanism; 141 - Third drive component; 142 - Lifting platform; 143 - Fourth drive component; 144 - Mounting platform; 145 - First electric gripper; 150 - Clamping mechanism; 151 - Fifth drive component; 152 - Telescopic platform; 153 - Second electric gripper; 160 - Electrode Roller mechanism; 161-First driving component; 162-Sliding shaft; 163-Roller; 164-Connecting rod; 170-Cutter mechanism; 171-Sixth driving component; 172-Cutter; 180-First robotic arm; 190-Vacuum suction cup; 200-Tearing film mechanism; 201-Second robotic arm; 202-Third electric gripper; 210-Collection box; 220-Lifting mechanism; 221-Seventh driving component; 222-Lifting rod; 300-Stacked cell; 310-Separator; 320-First electrode; 330-Second electrode; 340-Preset separator section. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0035] In the description of this invention, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0036] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0037] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, features in the following embodiments can be combined with each other.
[0038] Please refer to the reference. Figures 1 to 4 This invention provides a stacked battery cell recycling device (not shown) for recycling stacked battery cells 300. It enables rapid separation of the electrode and separator 310, improving separation efficiency, reducing separation costs, and preventing battery material loss, thus ensuring a high battery material recycling rate.
[0039] It should be noted that the laminated battery cell recycling equipment is used in the recycling process of the laminated battery cell 300. The laminated battery cell 300 includes a separator 310, multiple positive electrode plates, and multiple negative electrode plates. The separator 310 is folded in a Z-shape to form multiple layers of folded cavities. Multiple positive electrode plates and multiple negative electrode plates are alternately pasted into the multiple layers of folded cavities. The laminated battery cell recycling equipment is used to pull out and straighten the separator 310 to form a preset separator section 340. During this process, the separator 310... The positive and negative electrode plates are brought out so that multiple positive electrode plates are attached to one side of the preset separator section 340 in parallel and at equal intervals, and multiple negative electrode plates are attached to the other side of the preset separator section 340 in parallel and at equal intervals. The multiple positive electrode plates and multiple negative electrode plates are staggered. The stacked cell recycling equipment is also used to apply force to the positive and negative electrode plates so that the positive and negative electrode plates are detached from the preset separator section 340, thereby realizing the separation of the positive and negative electrode plates and completing the recycling operation of the stacked cell 300.
[0040] In this embodiment, the first electrode 320 is a negative electrode and the second electrode 330 is a positive electrode. When the stacked cell recycling device pulls out and straightens the separator 310, the preset separator section 340 is located on a horizontal plane. At this time, multiple first electrodes 320 are attached to the lower side of the preset separator section 340 in parallel and at equal intervals, and multiple second electrodes 330 are attached to the upper side of the preset separator section 340 in parallel and at equal intervals, so as to facilitate the removal of the first electrodes 320 and the second electrodes 330 from the separator 310.
[0041] The laminated battery cell recycling equipment includes an electrode separation device 100 and a tape cutting device (not shown). The tape cutting device is connected to the electrode separation device 100; the tape cutting device is used to cut the tape on the surface of the laminated battery cell 300 so that the free end of the separator 310 of the laminated battery cell 300 is no longer subject to the adhesion of the tape, making it easier for the electrode separation device 100 to pull out the separator 310 of the laminated battery cell 300 to form a preset separator segment 340; the electrode separation device 100 is used to separate the first electrode 320 and the second electrode 330 from the preset separator segment 340 to achieve rapid separation of the first electrode 320 and the second electrode 330 from the separator 310, thereby realizing the dismantling and recycling of the laminated battery cell 300.
[0042] The electrode separation device 100 includes a frame 110, a material platform 120, a positioning mechanism 130, a film pulling mechanism 140, a clamping mechanism 150, an electrode roller mechanism 160, a cutting mechanism 170, a first robotic arm 180, a vacuum suction cup 190, a film tearing mechanism 200, and a collection box 210. A tape cutting device is used to place the stacked battery cells 300, after tape cutting, onto the material platform 120, ensuring that the free end of the diaphragm 310 is positioned on top of the stacked battery cells 300. The positioning mechanism 130 is mounted on the material platform 120 and is used to position the stacked battery cells 300 placed on the material platform 120 to prevent them from detaching from the material platform 120. The film-pulling mechanism 140, the clamping mechanism 150, and the electrode roller mechanism 160 are all mounted on the frame 110. The film-pulling mechanism 140 is used to pull the diaphragm 310 of the stacked battery cell 300 to a preset length through the free end of the diaphragm 310 to form a preset diaphragm segment 340 with the first electrode 320 attached. At this time, because the film-pulling mechanism 140 continuously applies a pulling force to the preset diaphragm segment 340, the preset diaphragm segment 340 is always in a taut state. The taut preset diaphragm segment 340 is located on a horizontal plane. The first electrode 320 is attached to the lower side of the preset diaphragm segment 340, and the second electrode 330 is attached to the upper side of the preset diaphragm segment 340. The clamping mechanism 150 is used to clamp and fix the end of the preset diaphragm segment 340 away from the film-pulling mechanism 140 to prevent the film-pulling mechanism 140 from continuing to pull the stacked battery cell. The separator 310 of 300 is pulled out to ensure that the length of the preset separator section 340 is maintained at the preset length; the electrode roller mechanism 160 is set below the preset separator section 340. The electrode roller mechanism 160 is used to roll relative to the preset separator section 340 to apply a pushing force to the first electrode 320, so that the first electrode 320 falls off the preset separator section 340. The first electrode 320, which is separated from the preset separator section 340, falls downward under the action of gravity, so as to facilitate the collection and storage of the first electrode 320. In this way, the first electrode 320 and the separator 310 can be separated quickly, improving the separation efficiency and reducing the separation cost. Since the first electrode 320 will not be damaged in this process, the battery material in the first electrode 320 will not be lost, which can effectively ensure the battery material recycling rate.
[0043] It is worth noting that the cutting mechanism 170 is mounted on the frame 110. The cutting mechanism 170 is used to cut the preset diaphragm segment 340 from the diaphragm 310, so as to facilitate the subsequent removal of the second electrode 330 from the preset diaphragm segment 340. The first robotic arm 180 and the film-tearing mechanism 200 are both mounted on the frame 110 and connected to the vacuum suction cup 190. The vacuum suction cup 190 is positioned above the preset diaphragm segment 340, and the collection box 210 is placed on the frame 110. The vacuum suction cup 190 is used to adsorb the second electrode 330 adhering to the preset diaphragm segment 340. Because there is an adhesive force between the second electrode 330 and the preset diaphragm segment 340, the vacuum suction cup 190 can lift the preset diaphragm segment 340 through the second electrode 330. The first robotic arm 180 is used to move the second electrode 330 and the preset diaphragm segment 340 to a preset position through the vacuum suction cup 190; film tearing. Mechanism 200 is used to peel the preset separator segment 340 from the second electrode 330. During this process, the second electrode 330 remains stationary under the action of the vacuum suction cup 190 to ensure the separation effect between the second electrode 330 and the preset separator segment 340. The first robotic arm 180 is also used to move the second electrode 330 to above the collection box 210 via the vacuum suction cup 190, so that the position of the second electrode 330 corresponds to the position of the collection box 210. The vacuum suction cup 190 is also used to release the second electrode 330, so that the second electrode 330 falls into the collection box 210 under the action of gravity, so as to realize the collection and storage of the second electrode 330. In this way, the second electrode 330 and the separator 310 can be separated quickly, improving the separation efficiency and reducing the separation cost. Moreover, since the second electrode 330 is not damaged during this process, there is no loss of battery materials in the second electrode 330, which can effectively ensure the battery material recycling rate.
[0044] Please refer to Figure 5 The electrode roller mechanism 160 includes a first driving member 161, a sliding shaft 162, and a roller 163. The first driving member 161 is mounted on the frame 110 and is drively connected to the sliding shaft 162, and is used to drive the sliding shaft 162 to move. The roller 163 is rotatably sleeved on the sliding shaft 162, and can rotate relative to the sliding shaft 162. The sliding shaft 162 can limit the movement of the roller 163. Specifically, the first driving member 161 can drive the roller 163 to move through the sliding shaft 162, so that the roller 163 rolls relative to the preset diaphragm section 340, thereby facilitating the removal of the first electrode 320 from the preset diaphragm section 340.
[0045] In this embodiment, the frame 110 is provided with a clearance groove 111, which is used for the first electrode 320 to fall into, so as to facilitate the collection and storage of the first electrode 320. A first slide rail 112 and a second slide rail 113 are arranged opposite to each other on both sides of the clearance groove 111, and the extending direction of the first slide rail 112 and the second slide rail 113 is the same as the length direction of the preset diaphragm segment 340. Specifically, one end of the sliding shaft 162 is slidably engaged with the first slide rail 112, and the other end is slidably engaged with the second slide rail 113. The sliding shaft 162 can slide synchronously relative to the first slide rail 112 and the second slide rail 113. Both the first slide rail 112 and the second slide rail 113 can guide and limit the sliding shaft 162. The first driving member 161 is used to drive the sliding shaft 162 to slide back and forth along the extension direction of the first slide rail 112 and the second slide rail 113, so as to drive the roller 163 to roll back and forth relative to the preset diaphragm section 340. During the rolling process, the roller 163 will apply a pushing force to the first electrode 320 adhered to the preset diaphragm section 340, so that the first electrode 320 will fall off the preset diaphragm section 340 and fall into the relief groove 111.
[0046] It is worth noting that since the adhesion between the first electrode 320 and the preset diaphragm section 340 is relatively weak, the first electrode 320 can be pushed off the preset diaphragm section 340 by the roller 163 rolling relative to the preset diaphragm section 340, so as to separate the first electrode 320 from the preset diaphragm section 340, which is convenient and quick.
[0047] Furthermore, there are multiple sliding shafts 162 and rollers 163. Each roller 163 is rotatably mounted on a sliding shaft 162. The multiple sliding shafts 162 are arranged in parallel and spaced apart. Adjacent sliding shafts 162 are fixedly connected by a connecting rod 164. The drive motor can synchronously drive the multiple sliding shafts 162 to slide, so that the multiple rollers 163 roll synchronously relative to the preset diaphragm section 340. Specifically, depending on the preset length, a different number of first electrode plates 320 are adhered to the preset diaphragm section 340. The number of sliding shafts 162 and rollers 163 is the same as the number of first electrode plates 320 adhered to the preset diaphragm section 340. Each roller 163 is used to push one first electrode plate 320 away from the preset diaphragm section 340.
[0048] In this embodiment, three first electrode plates 320 are adhered to the preset diaphragm section 340. There are three sliding shafts 162 and three rollers 163. The drive motor synchronously drives the three sliding shafts 162 to slide, so that the three rollers 163 roll synchronously relative to the preset diaphragm section 340. The three rollers 163 work together to push all three first electrode plates 320 away from the preset diaphragm section 340, resulting in high separation efficiency. However, this is not the only embodiment. In other embodiments, the number of sliding shafts 162 and rollers 163 can be two or four; the specific number of sliding shafts 162 and rollers 163 is not limited.
[0049] Similarly, depending on the preset length, a different number of second electrode plates 330 are adhered to the preset diaphragm segment 340. The number of first robotic arms 180 and vacuum suction cups 190 is the same as the number of second electrode plates 330 adhered to the preset diaphragm segment 340. Each vacuum suction cup 190 is used to adsorb one second electrode plate 330, and each first robotic arm 180 is used to drive one vacuum suction cup 190 to move.
[0050] In this embodiment, three second electrode plates 330 are adhered to the preset diaphragm segment 340. There are three first robotic arms 180 and three vacuum suction cups 190. The three first robotic arms 180 and three vacuum suction cups 190 work together to synchronously drive the three second electrode plates 330, enabling the film-tearing mechanism 200 to tear the preset diaphragm segment 340 away from the three second electrode plates 330 in one go, resulting in high separation efficiency. However, this is not the only embodiment. In other embodiments, the number of first robotic arms 180 and vacuum suction cups 190 can be two or four; the specific number of first robotic arms 180 and vacuum suction cups 190 is not limited.
[0051] Please refer to Figure 6 The positioning mechanism 130 includes a second driving member 131, a movable clamping block 132, and a fixed clamping block 133. The second driving member 131 is mounted on the material table 120 and is connected to the movable clamping block 132 in a transmission manner. The second driving member 131 is used to drive the movable clamping block 132 to move. The fixed clamping block 133 is fixedly connected to the material table 120. The second driving member 131 is used to drive the movable clamping block 132 closer to the fixed clamping block 133 to clamp the laminated battery cell 300 between the movable clamping block 132 and the fixed clamping block 133. The second driving member 131 is also used to drive the movable clamping block 132 away from the fixed clamping block 133 to release the laminated battery cell 300, so as to facilitate the clamping and disassembly of the laminated battery cell 300.
[0052] In this embodiment, the movable clamping block 132 is provided with a first anti-slip stripe (not shown) on the side near the fixed clamping block 133, and the fixed clamping block 133 is provided with a second anti-slip stripe (not shown) on the side near the movable clamping block 132. Both the first and second anti-slip stripes are used to contact the side of the stacked cell 300 to increase the friction between the movable clamping block 132 or the fixed clamping block 133 and the stacked cell 300. In this way, it can prevent the film pulling mechanism 140 from pulling out the multilayer diaphragm 310 (the diaphragm 310 is folded in a Z-shape) at one time, and avoid serious fluctuations in the tension of the diaphragm 310.
[0053] Please refer to Figure 7 The membrane stretching mechanism 140 includes a third drive member 141, a lifting platform 142, a fourth drive member 143, a mounting platform 144, and a first electric gripper 145. The third drive member 141 is mounted on the frame 110 and connected to the lifting platform 142. The third drive member 141 drives the lifting platform 142 to rise or fall along a first direction. The fourth drive member 143 is mounted on the lifting platform 142 and connected to the mounting platform 144. The first electric gripper 145 is mounted on the mounting platform 144. The fourth drive member 143 drives the first electric gripper 145 to move along a second direction via the mounting platform 144, moving it away from the stacked battery cells 300. The first direction is perpendicular to the second direction. The extension direction of the first slide rail 112 and the second slide rail 113 is the second direction. The first electric gripper 145 is used to grip a preset diaphragm segment 340.
[0054] Specifically, during the process of the film-pulling mechanism 140 pulling out the diaphragm 310 of the stacked battery cell 300, the third drive member 141 and the fourth drive member 143 first cooperate to drive the first electric gripper 145 to move to the top position of the stacked battery cell 300, and feed the free end of the diaphragm 310 of the stacked battery cell 300 into the clamping range of the first electric gripper 145; then the first electric gripper 145 clamps the free end of the diaphragm 310; then the third drive member 141 drives the first electric gripper 145 to rise a certain distance in the first direction. To avoid interference between the film pulling mechanism 140 and the electrode roller mechanism 160, the fourth driving member 143 drives the first electric gripper 145 to move along the second direction to pull the diaphragm 310 out of the stacked cell 300, and simultaneously bring out the first electrode 320 and the second electrode 330; when the pulled-out length of the diaphragm 310 is the preset length, a preset diaphragm segment 340 is formed. At this time, the third driving member 141 drives the first electric gripper 145 to descend and reset along the first direction so that the preset diaphragm segment 340 is located on the horizontal plane.
[0055] Please refer to Figure 8The clamping mechanism 150 includes a fifth drive member 151, a telescopic platform 152, and a second electric gripper 153. The fifth drive member 151 is mounted on the frame 110 and connected to the telescopic platform 152. The second electric gripper 153 is mounted on the telescopic platform 152. The fifth drive member 151 drives the second electric gripper 153 to move along a third direction via the telescopic platform 152. The second electric gripper 153 is used to clamp a preset diaphragm segment 340. Specifically, the first direction, the second direction, and the third direction are perpendicular to each other. The fifth drive member 151 can drive the second electric gripper 153 closer to the preset diaphragm segment 340 so that the second electric gripper 153 can clamp the preset diaphragm segment 340. The fifth drive member 151 can also drive the second electric gripper 153 away from the preset diaphragm segment 340 to avoid the second electric gripper 153 causing obstruction or friction to the diaphragm 310 during the process of the film pulling mechanism 140 pulling out the diaphragm 310.
[0056] In this embodiment, there are two clamping mechanisms 150. The two clamping mechanisms 150 are arranged opposite to each other on both sides of the relief groove 111. The two clamping mechanisms 150 are used to clamp the two sides of the preset diaphragm section 340 in the width direction to improve the fixing effect of the preset diaphragm section 340 and further prevent the film pulling mechanism 140 from continuing to pull out the diaphragm 310 of the stacked cell 300, so as to ensure that the length of the preset diaphragm section 340 is kept at the preset length.
[0057] Please refer to Figure 9 The cutting mechanism 170 includes a sixth driving member 171 and a cutter 172. The sixth driving member 171 is mounted on the frame 110 and is connected to the cutter 172. The sixth driving member 171 drives the cutter 172 to descend in a first direction to cut the preset diaphragm segment 340 from the diaphragm 310, facilitating subsequent repositioning of the preset diaphragm segment 340 and allowing the film pulling mechanism 140 to pull the next preset diaphragm segment 340 out of the stacked battery cell 300. Specifically, the cutter 172 is located between the stacked battery cell 300 and the clamping mechanism 150. Driven by the sixth driving member 171, the cutter 172 can cut the diaphragm 310 between the stacked battery cell 300 and the clamping mechanism 150, so that the preset diaphragm segment 340 is completely separated from the stacked battery cell 300.
[0058] It is worth noting that, since the adhesion between the second electrode 330 and the preset diaphragm section 340 is strong, the film-tearing mechanism 200 is needed to peel the preset diaphragm section 340 off the second electrode 330 to ensure a stable and reliable separation effect between the second electrode 330 and the preset diaphragm section 340.
[0059] Please refer to Figure 10The film-tearing mechanism 200 includes a second robotic arm 201 and a third electric gripper 202. The second robotic arm 201 is mounted on the frame 110 and connected to the third electric gripper 202, which is used to grip one end of a preset diaphragm segment 340. Specifically, the second robotic arm 201 can drive the third electric gripper 202 to approach the preset diaphragm segment 340 at a preset position, so that the third electric gripper 202 can clamp one end of the preset diaphragm segment 340. The second robotic arm 201 can also drive the third electric gripper 202 to move the preset diaphragm segment 340 below the vacuum suction cup 190, so as to tear the preset diaphragm segment 340 off the second electrode 330, thereby achieving rapid separation of the second electrode 330 and the preset diaphragm segment 340.
[0060] Please continue to refer to Figure 3 It should be noted that the electrode separation device 100 also includes a lifting mechanism 220. The lifting mechanism 220 includes a seventh drive member 221 and a lifting rod 222. The seventh drive member 221 is mounted on the frame 110 and connected to the lifting rod 222. The end of the lifting rod 222 away from the seventh drive member 221 is connected to the material platform 120. The seventh drive member 221 is used to drive the material platform 120 to rise in the first direction through the lifting rod 222 to compensate for the height of the stacked cells 300 and ensure the stability of the membrane pulling mechanism 140 pulling out the diaphragm 310 and forming the preset diaphragm segment 340 each time.
[0061] Specifically, during the process of the film-pulling mechanism 140 pulling the diaphragm 310 out of the stacked battery cell 300, the height of the stacked battery cell 300 will continue to decrease until a preset diaphragm segment 340 is formed. After that, the cutting mechanism 170 cuts the preset diaphragm segment 340. The first robotic arm 180 transports the second electrode 330 and the preset diaphragm segment 340 to a preset position through the vacuum suction cup 190. The film-pulling mechanism 140 moves again to the top position of the stacked battery cell 300 so as to pull the diaphragm 310 of the stacked battery cell 300 to a preset length through the free end of the diaphragm 310 and form the next preset diaphragm segment 340. In this application, in order to ensure that the film pulling mechanism 140 can accurately clamp the free end of the diaphragm 310 each time, during the process of the film pulling mechanism 140 pulling the diaphragm 310 out of the stacked battery cell 300, the lifting mechanism 220 is used to drive the material platform 120 and the stacked battery cell 300 to rise continuously to compensate for the height of the stacked battery cell 300, and to ensure that the height of the top of the stacked battery cell 300 pulling out the diaphragm 310 remains unchanged, thereby ensuring the stability of the diaphragm 310 pulling out process.
[0062] In this embodiment, the first driving member 161, the second driving member 131, the third driving member 141, the fourth driving member 143, the fifth driving member 151, the sixth driving member 171, and the seventh driving member 221 are all electric cylinders, but they are not limited to this. In other embodiments, the first driving member 161, the second driving member 131, the third driving member 141, the fourth driving member 143, the fifth driving member 151, the sixth driving member 171, and the seventh driving member 221 can all be hydraulic cylinders or pneumatic cylinders. The driving method of the first driving member 161, the second driving member 131, the third driving member 141, the fourth driving member 143, the fifth driving member 151, the sixth driving member 171, and the seventh driving member 221 is not specifically limited.
[0063] It is worth noting that during the operation of the electrode separation device 100, the stacked battery cells 300 after the tape is cut are first placed on the material table 120, and the stacked battery cells 300 are clamped and positioned by the positioning mechanism 130; then, the membrane pulling mechanism 140 pulls the diaphragm 310 of the stacked battery cells 300 to a preset length through the free end of the diaphragm 310, so as to form a preset diaphragm segment 340 on the horizontal plane. The preset diaphragm segment 340 is located above the relief groove 111, the first electrode 320 is adhered to the lower side of the preset diaphragm segment 340, and the second electrode 330 is adhered to the lower side of the preset diaphragm segment 340. Above the preset diaphragm section 340, during this process, the lifting mechanism 220 drives the stacked battery cell 300 to rise via the material table 120 to compensate for the height of the stacked battery cell 300; then, the clamping mechanism 150 clamps and fixes the end of the preset diaphragm section 340 away from the film pulling mechanism 140 to prevent the diaphragm 310 from being pulled out of the stacked battery cell 300; then, the electrode roller mechanism 160 rolls back and forth below the preset diaphragm section 340 relative to the preset diaphragm section 340 to make the first electrode 320 detach from the preset diaphragm section 340. Under the influence of gravity, the electrode 320 falls into the clearance groove 111, thus collecting and storing the first electrode 320. Then, the first robotic arm 180 drives the vacuum suction cup 190 to move above the preset diaphragm section 340, and the vacuum suction cup 190 adsorbs the second electrode 330. Next, the cutting mechanism 170 cuts the preset diaphragm section 340 from the diaphragm 310, and the film pulling mechanism 140 and clamping mechanism 150 release the preset diaphragm section 340. Then, the first robotic arm 180, through the vacuum suction cup 190, moves the second electrode 330 and the preset diaphragm section 340 to... The system first sets a preset position; then, using the film-tearing mechanism 200, one end of the preset separator segment 340 is clamped and pulled to tear it off from the second electrode 330, thus separating the second electrode 330 from the preset separator segment 340. Next, the first robotic arm 180 uses a vacuum suction cup 190 to move the second electrode 330 to above the collection box 210. Finally, the vacuum suction cup 190 releases the second electrode 330, allowing it to fall into the collection box 210 under gravity, thus collecting and storing the second electrode 330. In this way, the separation operation of one preset separator segment 340 is completed. By repeating the above steps, the separation operation of multiple preset separator segments 340 can be performed continuously until the entire stacked cell 300 is completely separated. This method features high automation, high separation efficiency, good separation effect, low separation cost, and no loss of battery materials during the separation process, ensuring a high battery material recovery rate.
[0064] The electrode separation device 100 provided in this embodiment of the invention has a positioning mechanism 130 mounted on a material platform 120. The positioning mechanism 130 is used to position the stacked battery cells 300 placed on the material platform 120. The film pulling mechanism 140, the clamping mechanism 150, and the electrode roller mechanism 160 are all mounted on a frame 110. The film pulling mechanism 140 is used to pull the diaphragm 310 of the stacked battery cells 300 to a preset length to form a preset diaphragm segment 340 with the first electrode 320 adhered to it. The clamping mechanism 150 is used to clamp and fix the end of the preset diaphragm segment 340 away from the film pulling mechanism 140. The electrode roller mechanism 160 is used to roll relative to the preset diaphragm segment 340 so that the first electrode 320 falls off the preset diaphragm segment 340. Compared with existing technologies, the electrode separation device 100 provided by this invention, due to the use of a film pulling mechanism 140 mounted on a frame 110 and an electrode roller mechanism 160 rolling relative to a preset separator section 340, can achieve rapid separation of the electrode and separator 310, improve separation efficiency, reduce separation costs, and avoid battery material loss, thus ensuring battery material recovery rate. This results in high recovery efficiency and good recovery effect for the stacked battery cell recycling equipment.
[0065] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. An electrode separation device, characterized in that, The device includes a frame (110), a material table (120), a positioning mechanism (130), a film pulling mechanism (140), a clamping mechanism (150), and an electrode roller mechanism (160). The positioning mechanism (130) is mounted on the material table (120) and is used to position the stacked cells (300) placed on the material table (120). The film pulling mechanism (140), the clamping mechanism (150), and the electrode roller mechanism (160) are all mounted on the frame (110). The film-pulling mechanism (140) is used to pull the separator (310) of the stacked cell (300) to a preset length to form a preset separator segment (340) with the first electrode (320) attached thereto. The clamping mechanism (150) is used to clamp and fix the end of the preset separator segment (340) away from the film-pulling mechanism (140). The electrode roller mechanism (160) is used to roll relative to the preset separator segment (340) so that the first electrode (320) falls off the preset separator segment (340). The electrode roller mechanism (160) includes a first driving member (161), a sliding shaft (162), and a roller (163). The first driving member (161) is mounted on the frame (110) and is connected to the sliding shaft (162) in a driving manner. The roller (163) is rotatably sleeved on the sliding shaft (162). The frame (110) has a relief groove (111) for the first electrode (320) to fall into. 1) A first slide rail (112) and a second slide rail (113) are arranged opposite to each other on both sides. One end of the sliding shaft (162) is slidably engaged with the first slide rail (112), and the other end is slidably engaged with the second slide rail (113). The first driving member (161) is used to drive the sliding shaft (162) to slide back and forth along the extension direction of the first slide rail (112) and the second slide rail (113). The roller (163) is used to roll relative to the preset diaphragm section (340). The membrane pulling mechanism (140) includes a third drive member (141), a lifting platform (142), a fourth drive member (143), a mounting platform (144), and a first electric gripper (145). The third drive member (141) is mounted on the frame (110) and connected to the lifting platform (142). The third drive member (141) is used to drive the lifting platform (142) to rise or fall in a first direction. The fourth drive member (143) is mounted on the lifting platform (142) and connected to the mounting platform (144). The first electric gripper (145) is mounted on the mounting platform (144). The fourth drive member (143) is used to drive the first electric gripper (145) to move in a second direction through the mounting platform (144) to move away from the stacked battery cell (300). The first direction is perpendicular to the second direction. The first electric gripper (145) is used to hold the preset diaphragm segment (340).
2. The electrode separation device according to claim 1, characterized in that, There are multiple sliding shafts (162) and multiple rollers (163). Each roller (163) is rotatably sleeved on one of the sliding shafts (162). The multiple sliding shafts (162) are arranged in parallel and spaced apart. Adjacent sliding shafts (162) are fixedly connected by a connecting rod (164).
3. The electrode separation device according to claim 1, characterized in that, The positioning mechanism (130) includes a second driving member (131), a movable clamping block (132), and a fixed clamping block (133). The second driving member (131) is mounted on the material table (120) and is connected to the movable clamping block (132) in a transmission manner. The fixed clamping block (133) is fixedly connected to the material table (120). The second driving member (131) is used to drive the movable clamping block (132) closer to the fixed clamping block (133) so as to clamp the stacked battery cell (300) between the movable clamping block (132) and the fixed clamping block (133).
4. The electrode separation device according to claim 1, characterized in that, The clamping mechanism (150) includes a fifth drive member (151), a telescopic platform (152), and a second electric gripper (153). The fifth drive member (151) is mounted on the frame (110) and connected to the telescopic platform (152). The second electric gripper (153) is mounted on the telescopic platform (152). The fifth drive member (151) is used to drive the second electric gripper (153) to move in a third direction through the telescopic platform (152). The second electric gripper (153) is used to clamp the preset diaphragm segment (340).
5. The electrode separation device according to claim 1, characterized in that, The electrode separation device further includes a cutting mechanism (170), which includes a sixth drive member (171) and a cutter (172). The sixth drive member (171) is mounted on the frame (110) and is connected to the cutter (172) in a transmission manner. The sixth drive member (171) is used to drive the cutter (172) to descend so as to cut the preset diaphragm segment (340) from the diaphragm (310).
6. The electrode separation device according to claim 5, characterized in that, The electrode separation device further includes a first robotic arm (180), a vacuum suction cup (190), a film-tearing mechanism (200), and a collection box (210). The first robotic arm (180) is mounted on the frame (110) and connected to the vacuum suction cup (190). The vacuum suction cup (190) is used to adsorb the second electrode (330) adhered to the preset diaphragm segment (340). The first robotic arm (180) is used to drive the second electrode (330) and the preset diaphragm segment (340) through the vacuum suction cup (190). The first robotic arm (180) moves to a preset position, and the film-tearing mechanism (200) is installed on the frame (110). The film-tearing mechanism (200) is used to tear the preset diaphragm segment (340) off the second electrode (330). The first robotic arm (180) is also used to drive the second electrode (330) to move above the collection box (210) through the vacuum suction cup (190). The vacuum suction cup (190) is also used to release the second electrode (330) so that the second electrode (330) falls into the collection box (210).
7. The electrode separation device according to claim 6, characterized in that, The film-tearing mechanism (200) includes a second robotic arm (201) and a third electric gripper (202). The second robotic arm (201) is mounted on the frame (110) and connected to the third electric gripper (202). The third electric gripper (202) is used to hold one end of the preset diaphragm segment (340).
8. A device for recycling stacked battery cells, characterized in that, Includes the electrode separation device as described in any one of claims 1 to 7.
Citation Information
Patent Citations
Pole piece separation device and laminated battery cell recovery equipment
CN220021247U