Disassembling line for positive plate and negative plate in square shell / soft package battery

Abstract

The utility model relates to a disassembling line for positive and negative plates in a square-shell / soft-package battery, which comprises a tunnel-type drying oven, the feeding end of the tunnel-type drying oven is respectively connected with the discharging end of square-shell battery cell disassembling equipment and the discharging end of soft-package battery cell disassembling equipment, and the discharging end of the tunnel-type drying oven is connected with battery cell shunting equipment; the battery core shunting equipment is provided with a plurality of discharging ends, winding type battery core disassembling devices are arranged at part of the discharging ends of the battery core shunting equipment, and laminated type battery core disassembling devices are arranged at part of the discharging ends of the battery core shunting equipment; and positive and negative pole pieces separated by the winding type battery cell disassembling device and the laminated type battery cell disassembling device are conveyed into a pole piece drying oven through a positive and negative pole piece conveying line. The device has the beneficial effects that the square shell battery or the soft package battery is disassembled in a semi-automatic mode of man-machine combination, compared with complete manual disassembly, the efficiency is improved, in addition, all the devices are matched in order to form a production line, the turnover time can be shortened, the disassembly efficiency is improved, manual carrying can be reduced, and the labor intensity can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery recycling, specifically to a disassembly line for positive and negative electrode plates in prismatic / soft-pack batteries. Background Technology

[0002] The purpose of initial discharge of the battery pack is to better realize the physical recycling of materials. The fundamental reason is that the discharge action can cause most of the lithium ions to return from the negative electrode to the positive electrode. A large part of the value of the positive electrode sheet comes from the lithium content, and the return of lithium ions to the positive electrode is more conducive to the stability of the material structure.

[0003] Discharging a battery pack requires first disassembling it into cell modules. Then, the number of cells in each cell module is calculated by measuring the voltage. Based on the calculation, the cell modules are then discharged by connecting them to a cement resistor. Battery packs are divided into prismatic batteries and pouch batteries. Currently, the disassembly of prismatic and pouch batteries is mainly done manually, which is inefficient and the manual disassembly process is scattered, resulting in frequent turnover. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a disassembly line for the positive and negative electrode plates in a prismatic / soft-pack battery, so as to overcome the shortcomings of the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A disassembly line for positive and negative electrode sheets in a prismatic / soft-pack battery includes: a tunnel oven, the inlet of which is connected to the outlet of a prismatic cell disassembly device and a soft-pack cell disassembly device respectively, and the outlet of which is connected to a cell shunt device; the cell shunt device has multiple outlets, and a winding cell disassembly device is provided at some outlets of the cell shunt device, and a stacked cell disassembly device is provided at some outlets; the positive and negative electrode sheets separated by the winding cell disassembly device and the stacked cell disassembly device are fed into the electrode sheet oven via a positive and negative electrode sheet conveyor line.

[0006] The beneficial effects of this utility model are:

[0007] Square-shell battery cell dismantling equipment can dismantle square-shell batteries to obtain stacked cells; pouch battery cell dismantling equipment can dismantle pouch batteries to obtain wound cells.

[0008] Both stacked and wound battery cells can enter the tunnel oven and then enter the battery cell splitting equipment. During the operation of the production line, only one type of battery is disassembled at a time.

[0009] According to the type of battery cell, the battery cell splitting equipment sends the battery cells to the corresponding winding battery cell dismantling device or stacked battery cell dismantling device. Then, the workers manually install the winding battery cells on the winding battery cell dismantling device or the stacked battery cells on the stacked battery cell dismantling device.

[0010] Finally, the wound-type battery cell is disassembled by a wound-type battery cell disassembly device, or the stacked-type battery cell is disassembled by a stacked-type battery cell disassembly device.

[0011] The positive and negative electrode sheets separated by the winding-type cell dismantling device and the stacked-type cell dismantling device are sent into the electrode drying oven via the positive and negative electrode sheet conveyor line, and finally the dismantling of the square-shell battery or soft-pack cell is completed.

[0012] The semi-automatic method combining human and machine is used to disassemble square-shell batteries or soft-pack batteries. Compared with disassembly by manual means, efficiency is improved. In addition, the orderly coordination of all equipment to form a production line can reduce turnaround time, improve disassembly efficiency, and reduce manual handling and labor intensity.

[0013] Based on the above technical solution, the present invention can be further improved as follows.

[0014] Furthermore, the pouch cell dismantling equipment includes: a pouch battery feeding conveyor line, a pouch battery handling mechanism, a pouch battery double-sided cutting unit, a multi-degree-of-freedom robotic arm, a pouch battery single-sided cutting unit, and a pouch battery unloading conveyor line arranged sequentially along the production line flow direction; both the pouch battery handling mechanism and the multi-degree-of-freedom robotic arm are equipped with vacuum suction cup frames, and the pouch battery double-sided cutting unit and the pouch battery single-sided cutting unit together cut the three different sides of the pouch battery.

[0015] The further beneficial effects of adopting the above are as follows:

[0016] The soft-pack battery is placed on the soft-pack battery feeding conveyor line according to the predetermined position. The soft-pack battery feeding conveyor line sends the soft-pack battery to the soft-pack battery handling mechanism, and then the soft-pack battery handling mechanism is transported to the soft-pack battery double-sided cutting unit. The soft-pack battery double-sided cutting unit cuts the two opposite sides of the soft-pack battery at the specified position.

[0017] After the double-sided cutting unit of the pouch battery cuts two sides, a multi-degree-of-freedom robotic arm, in conjunction with a vacuum suction cup, sends the pouch battery with the two sides cut to the single-sided cutting unit. Then, the single-sided cutting unit cuts one of the two uncut sides of the pouch battery, thus cutting the three different sides of the pouch battery. The multi-degree-of-freedom robotic arm, in conjunction with a vacuum suction cup, transfers the pouch battery with the three sides cut off to the pouch battery unloading conveyor line. The multi-degree-of-freedom robotic arm controls the vacuum suction cup to vibrate, so that the wound cell of the pouch battery is detached from the aluminum film. The detached wound cell is sent away by the pouch battery unloading conveyor line, while the aluminum film is transferred to the designated storage position by the multi-degree-of-freedom robotic arm, in conjunction with the vacuum suction cup, thus completing one automatic pouch battery disassembly.

[0018] Using automated machinery for disassembly can effectively reduce labor intensity and improve work efficiency.

[0019] Furthermore, the double-sided cutting unit for pouch batteries includes: a first loading platform, a lifting punching mechanism, and a first spacing adjustment mechanism. Two lifting punching mechanisms are mounted across the first loading platform to cut the two sides of the pouch battery in the forward and backward directions. The first spacing adjustment mechanism is fixed to the two lifting punching mechanisms and is used to adjust the spacing between the two lifting punching mechanisms.

[0020] The further beneficial effects of adopting the above are as follows:

[0021] For pouch batteries of different sizes, the distance between the two lifting punching mechanisms can be adjusted by the first distance adjustment mechanism to meet different cutting needs and expand the application range. The pouch battery transport mechanism transfers the pouch battery to the first loading platform, and then the two lifting punching mechanisms work together to cut the two sides of the pouch battery in the forward and backward direction of the conveying direction. The mechanical automatic disassembly work can effectively reduce labor intensity and improve work efficiency.

[0022] Furthermore, the single-sided cutting unit for pouch batteries includes: a second loading platform, a blade, a blade holder, and a second telescopic mechanism. Both the second loading platform and the second telescopic mechanism are arranged at the outlet of the double-sided cutting unit for pouch batteries. The telescopic direction of the second telescopic mechanism is the same as the conveying direction of the pouch battery. The blade holder is fixed to the telescopic end of the second telescopic mechanism, and the blade is fixed on the blade holder. During the telescopic process, the second telescopic mechanism drives the blade on the blade holder to move, so as to perform single-sided cutting on one of the two uncut sides of the pouch battery on the second loading platform.

[0023] The further beneficial effects of adopting the above are as follows:

[0024] A multi-degree-of-freedom robotic arm, in conjunction with a vacuum suction cup, transports the pouch battery, after two sides have been cut off, from the pouch battery double-sided cutting unit onto the second loading platform. At this point, the pouch battery still has two sides that have not been cut. During the extension and retraction process, the second telescopic mechanism drives the blade on the blade holder to move, so as to cut one side of the two uncut sides of the pouch battery on the second loading platform, thereby cutting the three different sides of the pouch battery.

[0025] Using automated machinery for disassembly can effectively reduce labor intensity and improve work efficiency.

[0026] Furthermore, the prismatic battery cell dismantling equipment includes a prismatic battery feeding conveyor line, a prismatic battery double-sided cutting unit, a cell separation mechanism, and a prismatic battery unloading conveyor line arranged sequentially along the production line flow direction. The prismatic battery double-sided cutting unit is used to cut the two opposite sides of the prismatic battery in one direction. A prismatic battery handling mechanism is arranged between the prismatic battery feeding conveyor line and the prismatic battery double-sided cutting unit. The prismatic battery handling mechanism is used to send the prismatic batteries on the prismatic battery feeding conveyor line into the prismatic battery double-sided cutting unit, and to send the prismatic batteries with both sides cut off from the prismatic battery double-sided cutting unit into the cell separation mechanism.

[0027] The further beneficial effects of adopting the above are as follows:

[0028] The prismatic batteries are positioned according to a predetermined orientation on the prismatic battery feeding conveyor line. The prismatic battery feeding conveyor line sends the prismatic batteries to the discharge end. The prismatic battery handling mechanism then sends the prismatic batteries on the prismatic battery feeding conveyor line to the prismatic battery double-sided cutting unit. Then, the prismatic battery double-sided cutting unit cuts the prismatic batteries on two opposite sides in one direction. The prismatic batteries with the double sides cut off are then sent to the cell separation mechanism by the prismatic battery handling mechanism. Then, the cell separation mechanism separates the stacked cells and sends them to the prismatic battery unloading conveyor line.

[0029] Using automated machinery for disassembly can effectively reduce labor intensity and improve work efficiency.

[0030] Furthermore, the cell separation mechanism includes: an ejection mechanism, a flipping mechanism, and a pre-pressing mechanism. The ejection mechanism is arranged between the double-sided cutting unit of the square battery and the square battery unloading conveyor line. The pre-pressing mechanism is arranged above the flipping mechanism and presses down the square battery on the flipping mechanism. Then, the ejection mechanism pushes the cells inside the square battery toward the square battery unloading conveyor line along the cutting direction on both sides of the square battery.

[0031] The further beneficial effects of adopting the above are as follows:

[0032] After the two sides of the square battery are cut off, it is first placed on the flipping mechanism. Then the pre-pressing mechanism presses down on the square battery, and the ejection mechanism moves to push the stacked cells of the square battery out of the square shell and push them toward the square battery unloading conveyor line. The pre-pressing mechanism releases the square shell and resets. The flipping mechanism moves again to allow the square shell to slide off the flipping mechanism. The flipping mechanism resets again to prepare for the next separation of cells.

[0033] Using automated machinery for disassembly can effectively reduce labor intensity and improve work efficiency.

[0034] Furthermore, the flipping mechanism includes: a flipping motor, and a horizontally arranged carrier plate connected to the main shaft of the flipping motor.

[0035] The further beneficial effects of adopting the above are as follows:

[0036] After the two sides of the square battery are cut off, it is first placed on the carrier plate. After the stacked cells of the square battery are pushed out of the square shell, the flipping motor is activated to make the carrier plate rotate to a tilted or vertical state. The square shell on the carrier plate will slide off. The flipping motor then reverses to reset the carrier plate.

[0037] Furthermore, it also includes a dust extraction chamber, in which the cell splitting equipment, the winding cell dismantling device, the stacked cell dismantling device, and the positive and negative electrode sheet conveying lines are arranged. The discharge end of the tunnel oven is connected to the dust extraction chamber, and the feed end of the electrode sheet oven is connected to the dust extraction chamber. The side of the dust extraction chamber is provided with manual operation ports corresponding to each winding cell dismantling device and the stacked cell dismantling device.

[0038] The further beneficial effects of adopting the above are as follows:

[0039] Workers can manually load stacked or wound battery cells onto the stacked or wound battery cell dismantling device via a manual operating port for dismantling. The introduction of a dust extraction chamber can prevent dust and harmful gases generated during the dismantling process from posing a hazard to workers.

[0040] Furthermore, the battery cell diversion equipment includes: a battery cell conveying line, which is arranged above the winding battery cell dismantling device and the stacked battery cell dismantling device. A pushing mechanism is set on the battery cell conveying line at the corresponding winding battery cell dismantling device and the stacked battery cell dismantling device. A discharge bin is arranged on the side of the battery cell conveying line at the discharge end of each pushing mechanism.

[0041] The further beneficial effects of the above are as follows: after the stacked or wound battery cells are transported to the corresponding position on the battery cell conveyor line, the pushing mechanism is activated to push the stacked or wound battery cells to the corresponding dropping bin, and finally they fall into the stacked or wound battery cell dismantling device through the dropping bin, which can realize automatic material distribution.

[0042] Furthermore, a diaphragm conveyor line is arranged below the winding cell dismantling device.

[0043] The further beneficial effect of adopting the above is that the diaphragm disassembled by the winding cell disassembly device can fall onto the diaphragm conveying line and be uniformly sent to the collection box / vehicle by the diaphragm conveying line. Attached Figure Description

[0044] Figure 1 This is a structural diagram of the disassembly lines of the positive and negative electrode plates in the Chinese-cased / soft-pack battery of this utility model;

[0045] Figure 2 This is the first structural diagram of the equipment for dismantling square-shell battery cells;

[0046] Figure 3 This is the second structural diagram of the square-shell battery cell dismantling equipment;

[0047] Figure 4 This is the first structural diagram of the equipment for dismantling pouch cells;

[0048] Figure 5 This is the second structural diagram of the pouch cell dismantling equipment;

[0049] Figure 6 This is a first structural diagram of a double-sided cut unit for a pouch cell.

[0050] Figure 7 This is a second structural diagram of a double-sided cut unit for a pouch cell;

[0051] Figure 8 This is a structural diagram of a single-sided cut unit for a pouch battery.

[0052] Figure 9 First structural diagram of the device installed inside the dust removal and exhaust chamber;

[0053] Figure 10 The second structural diagram shows the device installed inside the dust extraction chamber.

[0054] The attached diagram lists the components represented by each number as follows:

[0055] 1. Square Battery Cell Dismantling Equipment: 110. Square Battery Feeding Conveyor Line; 120. Square Battery Double-Sided Cutting Unit; 121. Second Frame; 122. Cutting Machine; 123. Second Spacing Adjustment Mechanism; 124. Linear Movement Mechanism; 125. Second Positioning Mechanism; 130. Cell Separation Mechanism; 131. Ejection Mechanism; 132. Tilting Mechanism; 1321. Tilting Motor; 1322. Carrying Plate; 133. Pre-compression Mechanism; 140. Square Battery Unloading Conveyor Line; 150. Square Battery Handling Mechanism; 2. Pouch Battery Cell Dismantling Equipment: 210. Vacuum Suction Cup Frame; 220. Pouch Battery Feeding Conveyor Line; 230. Pouch Battery Handling Mechanism; 231. Linear Movement Mechanism; 232. First Lifting Mechanism; 233. First Positioning Mechanism; 240. Pouch Battery Double-Sided Cutting Unit; 241. First Carrying Platform; 242. Lifting Punching Mechanism. 2421. First frame; 2422. Second lifting mechanism; 2423. Mounting plate; 2424. Cutting blade; 2425. Pressure plate; 2426. Elastic mechanism; 243. First spacing adjustment mechanism; 250. Multi-degree-of-freedom robotic arm; 260. Single-sided cutting unit for soft-pack batteries; 261. Second loading platform; 262. Blade; 263. Blade holder; 264. Second telescopic mechanism; 265. Guide rail; 266. Slider. 267. Limit switch; 268. Third lifting mechanism; 270. Soft-pack battery unloading conveyor line; 3. Tunnel oven; 4. Cell diversion equipment; 410. Cell conveyor line; 420. Pushing mechanism; 430. Drop hopper; 5. Winding cell dismantling device; 6. Stacked cell dismantling device; 7. Positive and negative electrode sheet conveyor line; 8. Electrode drying oven; 9. Dust removal and exhaust chamber; 910. Manual operation port; 10. Diaphragm conveyor line. Detailed Implementation

[0056] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0057] Example 1

[0058] like Figures 1-10 As shown, a disassembly line for positive and negative electrode plates in a prismatic / pouch battery includes: a tunnel oven 3, the inlet of which is connected to the outlet of a prismatic cell disassembly device 1, which can disassemble prismatic batteries to obtain stacked cells; a pouch cell disassembly device 2, which can disassemble pouch batteries to obtain wound cells; and an outlet of the tunnel oven 3 connected to a cell shunt device 4, where both stacked and wound cells can enter the tunnel oven 3 and then pass through it into the cell shunt device 4. During operation, the production line disassembles only one type of battery at a time, such as a prismatic battery or a pouch battery, without disassembling both types of batteries simultaneously.

[0059] The battery cell splitting device 4 has multiple discharge ends. Some discharge ends of the device are equipped with a winding-type battery cell dismantling device 5, and some discharge ends are equipped with a stacked-type battery cell dismantling device 6. Depending on the battery cell type, the battery cell splitting device 4 sends the battery cells to the corresponding winding-type battery cell dismantling device 5 or stacked-type battery cell dismantling device 6. Then, workers manually install the winding-type battery cells onto the winding-type battery cell dismantling device 5, or the stacked-type battery cells onto the stacked-type battery cell dismantling device 6. The device disassembles 5 pairs of wound-type battery cells and 6 pairs of stacked-type battery cells. In this embodiment, both the wound-type battery cell disassembly device 5 and the stacked-type battery cell disassembly device 6 are existing technologies, so they will not be described in detail here. For details, please refer to application numbers 2019221427560 and 2019221211369 respectively. The positive and negative electrode sheets separated by the wound-type battery cell disassembly device 5 and the stacked-type battery cell disassembly device 6 are sent into the electrode drying oven 8 via the positive and negative electrode sheet conveying line 7.

[0060] Example 2

[0061] like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, this embodiment is a further improvement on embodiment 1, as detailed below:

[0062] The soft-pack battery cell dismantling equipment 2 includes: a soft-pack battery feeding conveyor line 220, a soft-pack battery handling mechanism 230, a soft-pack battery double-sided cutting unit 240, a multi-degree-of-freedom robotic arm 250, a soft-pack battery single-sided cutting unit 260, and a soft-pack battery unloading conveyor line 270 arranged sequentially along the production line flow direction.

[0063] A vacuum suction cup 210 is installed on the soft-pack battery handling mechanism 230, and a vacuum suction cup 210 is installed on the multi-degree-of-freedom robotic arm 250. The vacuum suction cup 210 can hold the soft-pack battery, realizing the picking and placing of the soft-pack battery. The soft-pack battery double-sided cutting unit 240 and the soft-pack battery single-sided cutting unit 260 together cut the three different sides of the soft-pack battery.

[0064] The pouch battery is positioned on the pouch battery feeding conveyor 220 according to a predetermined location. The pouch battery feeding conveyor 220 sends the pouch battery to the pouch battery handling mechanism 230. The pouch battery is first positioned at the pouch battery handling mechanism 230, and then it is transported by the pouch battery handling mechanism 230 to the pouch battery double-sided cutting unit 240. The pouch battery double-sided cutting unit 240 cuts the two opposite sides of the pouch battery at a specified position. For example, as shown in the figure, the two sides of the pouch battery before and after the conveying direction are cut.

[0065] After the double-sided cutting unit 240 of the pouch battery cuts two sides, the multi-degree-of-freedom robotic arm 250, in conjunction with the vacuum suction cup holder 210, sends the pouch battery with the two sides cut onto the single-sided cutting unit 260. Then, the single-sided cutting unit 260 cuts one of the two uncut sides of the pouch battery, for example, as shown in the figure, cutting the side outside the conveying direction of the pouch battery, thus cutting the three different sides of the pouch battery. The multi-degree-of-freedom robotic arm 250, in conjunction with the vacuum suction cup frame 210, transfers the pouch battery with three sides cut off to above the pouch battery unloading conveyor line 270. The multi-degree-of-freedom robotic arm 250 controls the vacuum suction cup frame 210 to vibrate, so that the wound battery cell of the pouch battery is detached from the aluminum film. The detached wound battery cell is sent away by the pouch battery unloading conveyor line 270, while the aluminum film is transferred to the designated storage position by the multi-degree-of-freedom robotic arm 250 in conjunction with the vacuum suction cup frame 210, thus completing one automatic pouch battery disassembly.

[0066] Example 3

[0067] like Figure 4 As shown, this embodiment is a further improvement on embodiment 2, as detailed below:

[0068] The soft-pack battery handling mechanism 230 includes: a linear movement mechanism 231, a first lifting mechanism 232 and a first positioning mechanism 233. The linear movement mechanism 231 can be a linear module in the prior art, and the first lifting mechanism 232 can be a cylinder or electric cylinder in the prior art.

[0069] The first positioning mechanism 233 is arranged at the outlet of the soft-pack battery feeding conveyor line 220, the linear movement mechanism 231 is arranged on one side of the soft-pack battery feeding conveyor line 220, the first lifting mechanism 232 is arranged on one side of the linear movement mechanism 231 and fixed to the linear movement mechanism 231, and the vacuum suction cup frame 210 is arranged below the first lifting mechanism 232 and fixed to the first lifting mechanism 232.

[0070] The soft-pack batteries on the soft-pack battery feeding conveyor line 220 are first fed into the first positioning mechanism 233. After the first positioning mechanism 233 senses that the soft-pack battery has entered the designated position, it feeds back the sensing signal to the controller. Then, the controller controls the first positioning mechanism 233 to move to position the soft-pack battery. After the positioning is completed, the first lifting mechanism 232 descends and works with the vacuum suction cup frame 210 to pick up the soft-pack battery. Then, the linear movement mechanism 231 is activated. The three mechanisms work together to transfer the soft-pack battery into the soft-pack battery double-sided cutting unit 240. Then, the linear movement mechanism 231, the first lifting mechanism 232, and the first positioning mechanism 233 are reset to prepare for the next positioning and handling.

[0071] Example 4

[0072] like Figure 6 , Figure 7 As shown, this embodiment is a further improvement on embodiment 2 or 3, as detailed below:

[0073] The double-sided cutting unit 240 for pouch batteries includes: a first loading platform 241, a lifting punching mechanism 242, and a first spacing adjustment mechanism 243. The first loading platform 241 is equipped with two lifting punching mechanisms 242 that cut the two sides of the pouch battery in the forward and backward directions. The first spacing adjustment mechanism 243 is fixed to the two lifting punching mechanisms 242 and is used to adjust the spacing between the two lifting punching mechanisms 242.

[0074] For pouch batteries of different sizes, the distance between the two lifting punching mechanisms 242 can be adjusted by the first distance adjustment mechanism 243 to meet different cutting requirements and expand the application range. The first distance adjustment mechanism 243 can adopt the combination of a hand-cranked linear module and two guide rails in the prior art. The pouch battery transport mechanism 230 transfers the pouch battery to the first loading table 241, and then the two lifting punching mechanisms 242 work together to cut the two sides of the pouch battery in the forward and backward direction of the transport direction.

[0075] The lifting punching mechanism 242 includes: a first frame 2421, a second lifting mechanism 2422, a mounting plate 2423, a cutting blade 2424, a pressure plate 2425, and an elastic mechanism 2426. The second lifting mechanism 2422 is fixed above the first frame 2421. The mounting plate 2423 is arranged below the first frame 2421 and fixed to the second lifting mechanism 2422. The cutting blade 2424 is vertically arranged on the lower end surface of the mounting plate 2423, and the cutting blade 2424 is arranged in the direction before or after the soft-pack battery conveying direction. The pressure plate 2425 is arranged below the mounting plate 2423. 25 is fixed to the mounting plate 2423 by the elastic mechanism 2426. The second lifting mechanism 2422 is electrically connected to the controller. The second lifting mechanism 2422 can be a cylinder, electric cylinder or hydraulic cylinder in the prior art. When the lifting punching mechanism 242 cuts the soft pack battery, the second lifting mechanism 2422 moves down and is first pressed down by the pressure plate 2425 and the elastic mechanism 2426. Then the cutting blade 2424 cuts the soft pack battery. After the cutting is completed, the second lifting mechanism 2422 moves up to reset. The pressure plate 2425 is also reset under the action of the elastic mechanism 2426, ready for the next cut.

[0076] Example 5

[0077] like Figure 8As shown, this embodiment is a further improvement on embodiment 2, as detailed below:

[0078] The single-sided cutting unit 260 for pouch batteries includes: a second loading platform 261, a blade 262, a blade holder 263, and a second telescopic mechanism 264. The second loading platform 261 and the second telescopic mechanism 264 are both arranged at the discharge port of the double-sided cutting unit 240 for pouch batteries. The telescopic direction of the second telescopic mechanism 264 is the same as the conveying direction of the pouch battery. The blade holder 263 is fixed to the telescopic end of the second telescopic mechanism 264, and the blade 262 is fixed on the blade holder 263. The second telescopic mechanism 264 is electrically connected to the controller. The second telescopic mechanism 264 can be a cylinder, electric cylinder, or hydraulic cylinder, etc., as used in the prior art.

[0079] The multi-degree-of-freedom robotic arm 250, in conjunction with the vacuum suction cup frame 210, transports the pouch battery with two sides cut off from the pouch battery double-sided cutting unit 240 onto the second loading platform 261. At this time, the pouch battery still has two sides that have not been cut. During the extension and retraction process, the second telescopic mechanism 264 drives the blade 262 on the blade holder 263 to move, so as to cut one of the two uncut sides of the pouch battery on the second loading platform 261, thereby cutting the three different sides of the pouch battery.

[0080] The single-sided cutting unit 260 for soft-pack batteries also includes: a guide rail 265, a slider 266, and a limit switch 267. The slider 266 is movably mounted on the guide rail 265. Limit switches 267 are provided at both ends of the guide rail 265. The blade holder 263 is connected to the telescopic end of the second telescopic mechanism 264 via the slider 266. The limit switches 267 are electrically connected to the controller. The limit switches 267 at both ends of the guide rail 265 are used to determine the two extreme positions of the slider 266 running on the guide rail 265. After the slider 266 touches the limit switch 267, the limit switch 267 sends a signal to the controller. Then, the controller sends an action command to the second telescopic mechanism 264 so that the second telescopic mechanism 264 drives the slider 266 to move in the opposite direction, thereby realizing the reciprocating motion of the slider 266 on the guide rail 265, so as to realize the reciprocating motion of the blade 262 and meet the continuous disassembly requirements.

[0081] The single-sided cutting unit 260 for pouch batteries also includes a third lifting mechanism 268. The blade holder 263 is fixed to the slider 266 via the third lifting mechanism 268. The third lifting mechanism 268 is electrically connected to the controller. The third lifting mechanism 268 can be an electric cylinder, pneumatic cylinder, or other existing technology. The third lifting mechanism 268 can adjust the height of the blade holder 263 and the blade 262 to meet the cutting requirements of pouch batteries of different thicknesses.

[0082] The soft-pack battery feeding conveyor line 220, the soft-pack battery handling mechanism 230, the soft-pack battery double-sided cutting unit 240, the multi-degree-of-freedom robotic arm 250, the soft-pack battery single-sided cutting unit 260, and the soft-pack battery unloading conveyor line 270 are all fixed on the frame. The frame is provided with a dropping port at the inlet and outlet of the soft-pack battery double-sided cutting unit 240, and a feeding port is provided at the outlet of the soft-pack battery double-sided cutting unit 240. The frame is provided with a collection box at the corresponding dropping port and feeding port. After the soft-pack battery double-sided cutting unit 240 cuts the two sides of the soft-pack battery, the cut edge material falls into the dropping port and then into the collection box. The aluminum film is fed into the feeding port by the multi-degree-of-freedom robotic arm 250 in conjunction with the vacuum suction cup frame 210 and then falls into the collection box / cart.

[0083] In addition, a foolproof carrier suitable for batteries is set at the inlet of the soft-pack battery feeding conveyor line 220 to ensure that the soft-pack batteries on the soft-pack battery feeding conveyor line 220 are all facing the same direction, so that the three different sides of the soft-pack battery can be cut according to the expected orientation during cutting.

[0084] Example 6

[0085] like Figure 2 , Figure 3 As shown, this embodiment is a further improvement on any one of embodiments 1 to 5, as detailed below:

[0086] The prismatic battery cell dismantling equipment 1 includes: a prismatic battery feeding conveyor line 110, a prismatic battery double-sided cutting unit 120, a cell separation mechanism 130, and a prismatic battery unloading conveyor line 140 arranged sequentially along the production line flow direction. The prismatic battery double-sided cutting unit 120 is used to cut the two opposite sides of the prismatic battery in one direction. A prismatic battery handling mechanism 150 is arranged between the prismatic battery feeding conveyor line 110 and the prismatic battery double-sided cutting unit 120. The prismatic battery handling mechanism 150 is used to send the prismatic batteries on the prismatic battery feeding conveyor line 110 into the prismatic battery double-sided cutting unit 120, and to send the prismatic batteries with the two sides cut off on the prismatic battery double-sided cutting unit 120 into the cell separation mechanism 130.

[0087] The prismatic batteries are positioned on the prismatic battery feeding conveyor line 110 according to a predetermined orientation. The prismatic battery feeding conveyor line 110 conveys the prismatic batteries to the discharge end. The prismatic battery handling mechanism 150 then sends the prismatic batteries on the prismatic battery feeding conveyor line 110 to the prismatic battery double-sided cutting unit 120. Then, the prismatic battery double-sided cutting unit 120 cuts two opposite sides of the prismatic battery in one direction, for example, along the two sides in the conveying direction of the prismatic battery feeding conveyor line 110. The prismatic batteries with both sides cut off are then sent by the prismatic battery handling mechanism 150 to the cell separation mechanism 130. Then, the cell separation mechanism 130 separates the stacked cells and sends them to the prismatic battery unloading conveyor line 140.

[0088] The prismatic battery double-sided cutting unit 120 includes: a second frame 121, a cutting machine 122, a second spacing adjustment mechanism 123, a linear movement mechanism 124, and a second positioning mechanism 125. The second spacing adjustment mechanism 123 is mounted on the second frame 121, and two cutting machines 122 are fixed below the second spacing adjustment mechanism 123. The second spacing adjustment mechanism 123 can adjust the spacing between the two cutting machines 122. For soft-pack batteries of different sizes, the spacing between the two cutting machines 122 can be adjusted by the second spacing adjustment mechanism 123 to meet different cutting requirements and expand the application range. The second spacing adjustment mechanism 123 can adopt the hand-cranked linear module in the prior art.

[0089] One end of the linear moving mechanism 124 is located between the two cutting machines 122, while the other end of the linear moving mechanism 124 is located outside the two cutting machines 122. The second positioning mechanism 125 is movably mounted on the linear moving mechanism 124. The second positioning mechanism 125 clamps the square battery, and then the linear moving mechanism 124 sends the second positioning mechanism 125 and the clamped square battery to the two cutting machines 122. The two cutting machines 122 cut the two sides of the square battery. After the cutting is completed, the linear moving mechanism 124 controls the second positioning mechanism 125 to reset, and then the second positioning mechanism 125 releases the square battery. The square battery transport mechanism 150 sends the cut square battery into the cell separation mechanism 130.

[0090] Example 7

[0091] like Figure 2 , Figure 3 As shown, this embodiment is a further improvement on embodiment 6, as detailed below:

[0092] The cell separation mechanism 130 includes: an ejection mechanism 131, a flipping mechanism 132, and a pre-pressing mechanism 133. The ejection mechanism 131 is arranged between the prismatic battery double-sided cutting unit 120 and the prismatic battery unloading conveyor line 140. The pre-pressing mechanism 133 is arranged above the flipping mechanism 132 and presses down the prismatic battery on the flipping mechanism 132. Then, the ejection mechanism 131 pushes the cells inside the prismatic battery toward the prismatic battery unloading conveyor line 140 along the cutting direction of the two sides of the prismatic battery.

[0093] After the two sides of the square battery are cut off, it is first placed on the flipping mechanism 132. Then the pre-pressing mechanism 133 presses down on the square battery. The ejection mechanism 131 is activated to push the stacked cells of the square battery out of the square shell and push them toward the square battery unloading conveyor line 140. The pre-pressing mechanism 133 releases the square shell and resets. The flipping mechanism 132 is activated again to allow the square shell to slide off the flipping mechanism 132. The flipping mechanism 132 is reset again to prepare for the next separation of cells.

[0094] Example 8

[0095] like Figure 3 As shown, this embodiment is a further improvement on embodiment 7, as detailed below:

[0096] The flipping mechanism 132 includes a flipping motor 1321 and a horizontally arranged carrier plate 1322 connected to the main shaft of the flipping motor 1321. The square-shell battery with both sides cut off is first placed on the carrier plate 1322. After the stacked cells of the square-shell battery are pushed out of the square shell, the flipping motor 1321 is activated to make the carrier plate 1322 rotate to a tilted or vertical state. The square shell on the carrier plate 1322 will slide off. The flipping motor 1321 then reverses its action to reset the carrier plate 1322.

[0097] The square battery feeding conveyor line 110, the square battery double-sided cutting unit 120, the cell separation mechanism 130 and the square battery unloading conveyor line 140 are all fixed on the frame. A discharge port is set on the frame below the cell separation mechanism 13, and a collection box / cart is set at the corresponding discharge port below the frame. The square batteries sliding off the loading plate 1322 will enter the collection box / cart through the discharge port.

[0098] In addition, a foolproof carrier suitable for batteries is set at the inlet of the square battery feeding conveyor line 110 to ensure that the square batteries on the square battery feeding conveyor line 110 are all facing the same direction, so as to ensure that the square batteries can be cut in the expected direction during cutting.

[0099] Example 9

[0100] like Figure 1As shown, this embodiment is a further improvement on any one of embodiments 1 to 8, as detailed below:

[0101] The dismantling line for positive and negative electrodes in prismatic / soft-pack batteries also includes a dust extraction chamber 9, a cell shunt device 4, a winding cell dismantling device 5, a stacked cell dismantling device 6, and a positive and negative electrode conveying line 7 arranged inside the dust extraction chamber 9. The discharge end of the tunnel oven 3 is connected to the dust extraction chamber 9, and the feed end of the electrode oven 8 is connected to the dust extraction chamber 9. The side of the dust extraction chamber 9 is provided with manual operation ports 910 corresponding to each winding cell dismantling device 5 and stacked cell dismantling device 6. Workers manually load the stacked cells or winding cells onto the stacked cell dismantling device 6 or winding cell dismantling device 5 through the manual operation ports 910 to dismantle the cells.

[0102] Example 10

[0103] like Figure 9 , Figure 10 As shown, this embodiment is a further improvement on embodiment 9, as detailed below:

[0104] The battery cell splitting device 4 includes: a battery cell conveying line 410, which is arranged above the winding battery cell dismantling device 5 and the stacked battery cell dismantling device 6. A pushing mechanism 420 is provided on the battery cell conveying line 410 at the corresponding location of each winding battery cell dismantling device 5 and stacked battery cell dismantling device 6. A dropping bin 430 is arranged on the side of the battery cell conveying line 410 at the discharge end of each pushing mechanism 420.

[0105] After the stacked or wound battery cells are transported to the corresponding position on the battery cell conveyor line 410, the pushing mechanism 420 is activated to push the stacked or wound battery cells to the corresponding dropping bin 430. Finally, the cells are dropped into the stacked battery cell dismantling device 6 or the wound battery cell dismantling device 5 through the dropping bin 430, which can realize automatic material distribution.

[0106] Example 11

[0107] like Figure 10 As shown, this embodiment is a further improvement on embodiment 10, as detailed below:

[0108] A diaphragm conveying line 10 is arranged below the winding cell dismantling device 5. The diaphragm dismantled by the winding cell dismantling device 5 can fall onto the diaphragm conveying line 10 and be uniformly sent to the collection box / vehicle by the diaphragm conveying line 10.

[0109] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A positive and negative electrode tab disassembly wire in a square case / pouch battery, characterized by, The application relates to a battery cell disassembling device. The soft package battery cell disassembling device (2) comprises a soft package battery loading conveying line (220), a soft package battery carrying mechanism (230), a soft package battery double-edge cutting unit (240), a multi-degree-of-freedom mechanical arm (250), a soft package battery single-edge cutting unit (260) and a soft package battery unloading conveying line (270) arranged in sequence along the production line.

2. The positive and negative electrode tab disassembly line for square case / pouch battery according to claim 1, characterized in that, The soft package battery double-edge cutting unit (240) comprises a first loading table (241), a lifting punching mechanism (242) and a first spacing adjusting mechanism (243), two lifting punching mechanisms (242) for cutting two edges of the soft package battery before and after the conveying direction are arranged on the first loading table (241); the first spacing adjusting mechanism (243) is fixed with the two lifting punching mechanisms (242) and is used for adjusting the spacing between the two lifting punching mechanisms (242).

3. The positive and negative electrode tab disassembly line in a square case / soft package battery according to claim 2, characterized by, The soft package battery single-edge cutting unit (260) comprises a second loading table (261), a blade (262), a blade holder (263) and a second telescopic mechanism (264), the second loading table (261) and the second telescopic mechanism (264) are arranged at the discharging port of the soft package battery double-edge cutting unit (240), the telescopic direction of the second telescopic mechanism (264) is the same as the conveying direction of the soft package battery, the blade holder (263) is fixed at the telescopic end of the second telescopic mechanism (264), and the blade (262) is fixed on the blade holder (263); the second telescopic mechanism (264) drives the blade (262) on the blade holder (263) to act in the telescopic process, so that one of the two uncut edges of the soft package battery on the second loading table (261) is cut.

4. The positive and negative electrode tab disassembly line for square case / pouch battery according to claim 2, characterized in that, ​ 5. The positive and negative electrode tab disassembly line for square case / pouch battery according to claim 1, characterized in that, The square shell battery cell disassembling equipment (1) comprises a square shell battery loading conveying line (110), a square shell battery double-edge cutting unit (120), a cell separating mechanism (130) and a square shell battery unloading conveying line (140) arranged in sequence along the production line, the square shell battery double-edge cutting unit (120) is used for cutting the two opposite edges of the square shell battery in one direction; the square shell battery carrying mechanism (150) is arranged between the square shell battery loading conveying line (110) and the square shell battery double-edge cutting unit (120), the square shell battery carrying mechanism (150) is used for sending the square shell battery on the square shell battery loading conveying line (110) into the square shell battery double-edge cutting unit (120), and sending the square shell battery after cutting the double edges in the square shell battery double-edge cutting unit (120) into the cell separating mechanism (130).

6. The positive and negative electrode tab disassembly line in a square case / soft package battery according to claim 5, characterized by, The cell separating mechanism (130) comprises an ejection mechanism (131), a turnover mechanism (132) and a pre-pressing mechanism (133), the ejection mechanism (131) is arranged between the square shell battery double-edge cutting unit (120) and the square shell battery unloading conveying line (140); the pre-pressing mechanism (133) is arranged above the turnover mechanism (132) and presses the square shell battery on the turnover mechanism (132), and then the cell in the square shell battery is pushed to the square shell battery unloading conveying line (140) by the ejection mechanism (131) along the direction of cutting the two edges of the square shell battery.

7. The positive and negative electrode tab disassembly line in a square case / soft package battery according to claim 6, characterized by, The turnover mechanism (132) comprises a turnover motor (1321) and a load carrying plate (1322) connected with the main shaft of the turnover motor (1321) and arranged horizontally. 8.The positive and negative electrode tab disassembling wire for a square case / soft package battery according to claim 1, wherein, Further comprising a dust removal air suction chamber (9), the cell shunting equipment (4), the winding type cell disassembling device (5), the laminated type cell disassembling device (6) and the positive and negative electrode sheet conveying line (7) are arranged in the dust removal air suction chamber (9), the discharge end of the tunnel type oven (3) is communicated with the dust removal air suction chamber (9), the feeding end of the electrode sheet oven (8) is communicated with the dust removal air suction chamber (9), and the side surface of the dust removal air suction chamber (9) is provided with a manual operation opening (910) corresponding to each winding type cell disassembling device (5) and laminated type cell disassembling device (6). 9.The positive and negative electrode tab disassembling line for a square case / pouch battery according to claim 8, wherein The cell shunting equipment (4) comprises a cell conveying line (410), the cell conveying line (410) is arranged above the winding type cell disassembling device (5) and the laminated type cell disassembling device (6), a pushing mechanism (420) is arranged on the cell conveying line (410) corresponding to each winding type cell disassembling device (5) and laminated type cell disassembling device (6), and a discharging bin (430) is arranged on the side surface of the cell conveying line (410) at the discharge end of each pushing mechanism (420). 10.The positive and negative electrode tab disassembling wire for a square case / soft package battery according to claim 1, wherein The lower part of the winding type cell disassembling device (5) is arranged with a diaphragm conveying line (10).

Images