A process method for battery separation

Abstract

The present invention relates to the technical field of waste battery recycling, and discloses a battery separator and its process method, which includes a feeding device, a separating device, a winding device, a grasping device and a blanking device; the feeding device includes a material plate and a fixing mechanism; the separating device includes a separating station, a first driving mechanism, a power roller and a scraper. The two scrapers are respectively located on opposite sides of the separating station, and the cutting edges of the scrapers face the separating station. The first driving mechanism drives the two scrapers and the power roller to cut into or out of the separating station, and the power roller rotates relative to the scraper; the winding device includes a second driving mechanism and a winding rod, and the second driving mechanism drives the winding rod to rotate; the grasping device includes a robotic arm and a grasping claw, and the robotic arm drives the grasping claw to pass through the material plate, the separating station and the winding rod in sequence; the blanking device includes a clamping claw and a third driving mechanism, and the third driving mechanism drives the clamping claw to translate. The winding rod is located on the moving path of the clamping claw, realizing the automatic separation of battery cores.

Description

Technical Field

[0001] The present invention relates to the technical field of waste battery recycling, and particularly to a process method for battery separation. Background Art

[0002] At present, with the rapid development of new energy vehicles and grid energy storage related industries in China, the production and sales volume of power batteries continue to grow rapidly, and a large number of power batteries will face retirement and scrapping in the future. Waste power batteries are both an "urban mine" and an environmental disaster. In the face of the needs of ecological environmental protection, battery pollutant prevention and control, and the recycling of scarce lithium and cobalt resources, the research and development of advanced technologies and equipment for the environmental protection recycling and regeneration of power battery resources are very necessary and urgent.

[0003] In the existing technology, many enterprises adopt the processing technology of overall crushing, re-extraction, separation and purification of power batteries. However, due to the complex composition of the mixed materials of battery cores and the long separation process flow, it is difficult and costly to recover material resources. Moreover, this separation process has a low degree of automation, relies heavily on manual work, has a risk of explosion during the separation process, is prone to endanger personal safety, and the dust, waste gas and waste liquid are prone to leakage, resulting in serious environmental pollution. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing battery separation and purification processing technology has a large recovery difficulty, relies heavily on manual work, and is prone to generate danger.

[0005] To solve the above technical problem, the present invention provides a battery separator, which includes a feeding device, a separation device, a winding device, a grasping device and a blanking device; the feeding device includes a material plate and a fixing mechanism for fixing the battery, and the fixing mechanism is located on one side of the material plate; the separation device includes a separation station, a first driving mechanism, at least one power roller and a pair of scraping plates, the separation station is located above the material plate, the two scraping plates are respectively located on opposite sides of the separation station, the cutting edges of the scraping plates face the separation station, the first driving mechanism is respectively connected to the two scraping plates and the power roller, the first driving mechanism drives the two scraping plates and the power roller to cut into or out of the separation station, and the power roller rotates relative to the scraping plates; the winding device includes a second driving mechanism and a winding rod, the winding rod is located on the side of the separation station away from the feeding device, and the second driving mechanism is connected to the winding rod and drives the winding rod to rotate; the grasping device includes a robotic arm and a grasping claw, the robotic arm is connected to the grasping claw, and the robotic arm is used to drive the grasping claw to sequentially pass through the material plate, the separation station and the winding rod; the blanking device includes a clamping claw and a third driving mechanism, the third driving mechanism is connected to the clamping claw and drives the clamping claw to translate, and the winding rod is located on the moving path of the clamping claw.

[0006] Further, the power rollers include an upper power roller and a lower power roller, the upper power roller and the lower power roller are respectively located on opposite sides of the separation station, the two scrapers are divided into an upper scraper and a lower scraper, the curved surface of the upper power roller is arranged facing the edge of the upper scraper, the curved surface of the lower power roller is arranged facing the edge of the lower scraper, and the first driving mechanism drives the upper power roller and the upper scraper to move towards each other, and the first driving mechanism drives the lower power roller and the lower scraper to move towards each other.

[0007] Further, the upper scraper is above the lower scraper, the first driving mechanism drives the upper scraper to move horizontally, the separation device further includes a first upper guide roller and a second upper guide roller, the first upper guide roller and the second upper guide roller are respectively located on opposite sides of the separation station, the first upper guide roller moves as the upper scraper moves, one side of the first upper guide roller facing the second upper guide roller is aligned with the edge of the upper scraper in the vertical direction, the second upper guide roller moves as the upper power roller moves, and one side of the upper power roller facing the upper scraper is aligned with one side of the second upper guide roller facing the first upper guide roller in the vertical direction.

[0008] Further, the lower scraper is below the upper scraper, the first driving mechanism drives the lower scraper to move horizontally, the separation device further includes a first lower guide roller and a second lower guide roller, the first lower guide roller and the second lower guide roller are respectively located on opposite sides of the separation station, the first lower guide roller moves as the lower power roller moves, one side of the first lower guide roller facing the second lower guide roller is aligned with one side of the lower power roller facing the lower scraper in the vertical direction, the second lower guide roller moves as the lower scraper moves, and the edge of the lower scraper is aligned with one side of the second lower guide roller facing the first lower guide roller in the vertical direction.

[0009] Further, the fixing mechanism is a suction cup, a notch is formed on the material plate, the suction cup corresponds to the notch, and the suction cup is used for adsorbing the battery on the material plate.

[0010] Further, the feeding device further includes a bracket and a flipping cylinder, the material plate is hinged to the bracket, the cylinder head of the flipping cylinder is installed on the bracket, and the piston rod of the flipping cylinder is hinged to the bottom surface of the material plate.

[0011] Further, the feeding device further includes a feeding guide rail, a film pressing cylinder and a film pressing clamp, the film pressing clamp is located on one side of the material plate, the film pressing clamp, the film pressing cylinder, the material plate and the fixing mechanism slide along the feeding guide rail, the film pressing cylinder is connected to the film pressing clamp, and the film pressing cylinder drives the film pressing clamp to open and close.

[0012] Further, it further includes a first collection box, a second collection box and a blanking box. The blanking box is located directly below the separation station, and the blanking box is located between the first collection box and the second collection box. The first collection box is on the same side as one of the scraping plates, and the second collection box is on the same side as the other scraping plate.

[0013] Further, the blanking device further includes a blanking plate and a swing cylinder. The blanking plate is located below the grasping claws, the swing cylinder is connected to the blanking plate, and the swing cylinder drives the blanking plate to cover or open the opening of the second collection box. When the blanking plate covers the opening of the second collection box, the blanking plate is inclined relative to the horizontal plane and the bottom end of the blanking plate faces the blanking box.

[0014] A process method using a battery separator includes the following steps:

[0015] S01. Remove the outer shell of the battery in advance, remove the electrolyte in the battery, and expose the end of the diaphragm of the battery from the battery cell;

[0016] S02. Place the battery on the material plate, and the fixing mechanism fixes the battery;

[0017] S03. The robotic arm moves the grasping claws to the diaphragm of the battery, and the grasping claws grip the end of the diaphragm;

[0018] S04. The robotic arm moves the grasping claws to the separation station, the grasping claws pull the end of the diaphragm to the separation station, the power roller and the two scraping plates extend into the separation station in sequence or simultaneously and both adhere to the diaphragm, the grasping claws continue to rise, the power roller starts to rotate, and each scraping plate scrapes off the electrode on one side of the diaphragm;

[0019] S05. The grasping claws grip the end of the diaphragm and rise above the separation station, the second driving mechanism extends the winding rod towards the diaphragm and drives the winding rod to rotate, the winding rod winds up the diaphragm, and the grasping claws release the diaphragm;

[0020] S06. After the winding rod winds up the diaphragm, the third driving mechanism extends the clamping claws towards the winding rod, the clamping claws clamp the diaphragm and take the diaphragm away from the winding rod.

[0021] Compared with the prior art, an embodiment of the battery separator of the present invention and its process method have the following beneficial effects: realizing the automatic feeding of power battery cells, the automatic separation of positive and negative electrode sheets, the automatic sorting and blanking of positive and negative electrode sheets and diaphragms, and realizing the fully automated production of battery cell separation. Compared with using chemical methods to decompose battery cells, the present invention disassembles and separates the positive, negative, and diaphragm materials of the cell through physical means, which is beneficial to simplifying the composition of the mixed materials, shortening the chemical purification process flow, significantly improving the production efficiency and resource recovery rate, reducing the dependence on labor, protecting the personal safety of workers, effectively sealing and isolating dust, waste gas, and noise, preventing the leakage and pollution of dust and waste gas from power battery cells to the environment, being conducive to large-scale industrial production, and having good practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the machine device;

[0023] Figure 2 is a schematic internal structural diagram of an embodiment of the present invention;

[0024] Figure 3 is a schematic structural diagram of the feeding device;

[0025] Figure 4 is a schematic structural diagram of the separation device;

[0026] Figure 5 is a schematic back view of the separation device;

[0027] Figure 6 is a schematic structural diagram of the winding device;

[0028] Figure 7 is a schematic structural diagram of the grasping device;

[0029] Figure 8 is a schematic structural diagram of the blanking device.

[0030] In the figure, 1 is the machine device; 11 is the frame table; 12 is the frame outer cover; 13 is the exhaust gas pipeline; 14 is the operation control box; 2 is the feeding device; 21 is the material plate; 22 is the fixing mechanism; 23 is the bracket; 24 is the flipping cylinder; 25 is the feeding guide rail; 26 is the feeding cylinder; 27 is the film pressing cylinder; 28 is the film pressing clamp; 3 is the separating device; 31 is the processing frame; 32 is the separating station; 331 is the first upper cylinder; 332 is the second upper cylinder; 333 is the first lower cylinder; 334 is the second lower cylinder; 34 is the upper power roller; 35 is the lower power roller; 36 is the upper scraper; 37 is the lower scraper; 381 is the first upper guide roller; 382 is the second upper guide roller; 383 is the first lower guide roller; 384 is the second lower guide roller; 4 is the winding device; 41 is the winding mounting plate; 42 is the winding guide rail; 43 is the rotating motor; 44 is the translation motor; 45 is the winding rod; 46 is the turntable; 5 is the grasping device; 51 is the grasping mounting plate; 52 is the grasping guide rail; 53 is the robotic arm; 531 is the grasping cylinder; 54 is the grasping claw; 6 is the blanking device; 61 is the blanking mounting plate; 62 is the clamping claw; 63 is the blanking guide rail; 64 is the rack; 65 is the blanking motor; 66 is the connecting frame; 661 is the clamping cylinder; 67 is the blanking plate; 68 is the swinging cylinder; 7 is the first collection box; 8 is the second collection box; 9 is the blanking box; 100 is the battery cell; 101 is the separator. Detailed implementation manners

[0031] The following will further describe in detail the specific implementation manners of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", etc. in the present invention are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0033] As Figure 1-2 shown, a battery separator in a preferred embodiment of an embodiment of the present invention is mainly used for separating the battery cells 100 of power batteries after removing the outer shell and electrolyte. Before separating the battery cells 100 using the battery separator of the present invention, the end of the separator 101 of the battery cell 100 needs to be exposed from the battery cell 100. Preferably, the battery separator of the present invention can separate the battery cells 100 of stacked power batteries.

[0034] As Figure 1-2As shown in the figure, the battery separator includes a machine platform device 1, a feeding device 2, a separating device 3, a winding device 4, a grasping device 5, and a blanking device 6. The machine platform device 1 includes a machine frame platform 11, a machine frame outer cover 12, an exhaust gas pipeline 13, and an operation control box 14. The feeding device 2, the separating device 3, the winding device 4, the grasping device 5, and the blanking device 6 are installed on the machine frame platform 11, and only the machine frame platform 11 occupies the site space, saving the use of site space. The machine frame outer cover 12 is fixed on the machine frame platform 11, and the separating device 3, the winding device 4, the grasping device 5, and the blanking device 6 are inside the machine frame outer cover 12. The waste pipeline is installed on the machine frame outer cover 12, and the waste pipeline is used to centrally discharge the harmful gases generated by separating the battery cells 100, effectively sealing and isolating dust, waste gas, and noise, and preventing the leakage and pollution of the dust and waste gas of the power battery cells 100 to the environment. The operation control box 14 is used to control the operation of the battery separator.

[0035] As Figure 1-3 shown in the figure, the feeding device 2 includes a material plate 21 and a fixing mechanism 22 for fixing the battery. The fixing mechanism 22 is located on one side of the material plate 21. Part of the feeding device 2 is outside the machine frame outer cover 12. During use, the battery cells 100 can be placed on the material plate 21 by hand or an external manipulator. After the battery cells 100 are placed on the material plate 21, the battery cells 100 can be fixed on the material plate 21 by the fixing mechanism 22. The fixing mechanism 22 is a suction cup or a holding member that can hold the battery cells 100.

[0036] As Figure 1-5As shown, the separating device 3 includes a processing frame 31, a separating station 32, a first driving mechanism, at least one power roller and a pair of scraping plates. The first driving mechanism, the power roller and the scraping plates are installed on the processing frame 31, and the processing frame 31 is installed on the machine frame table 11. The separating station 32 is located above the material plate 21. The two scraping plates are respectively located on the left and right sides opposite to the separating station 32, and the cutting edges of the scraping plates are horizontally oriented towards the separating station 32. The first driving mechanism is respectively connected to the two scraping plates and the power roller. In this embodiment, there are two power rollers. The first driving mechanism includes a first upper air cylinder 331, a second upper air cylinder 332, a first lower air cylinder 333, and a second lower air cylinder 334. Among them, the first upper air cylinder 331 is used to drive one of the scraping plates to translate and cut into or out of the separating station 32, and the first lower air cylinder 333 is used to drive the other scraping plate to translate and cut into or out of the separating station 32. The second upper air cylinder 332 is used to drive one of the power rollers to cut into or out of the separating station 32, and the second lower air cylinder 334 is used to drive the other power roller to cut into or out of the separating station 32. Each power roller is equipped with a motor that can drive the power roller to rotate around its central axis. When the diaphragm 101 passes through the separating station 32, the power roller can stick to the diaphragm 101 and drive the diaphragm 101 to be transmitted upward. The two scraping plates are both used to scrape the motor on the diaphragm 101. One of the scraping plates can scrape off the positive electrode plate of the battery cell 100, and the other scraping plate can scrape off the negative electrode plate of the battery cell 100.

[0037] As Figure 2-6 shown, the winding device 4 includes a winding mounting plate 41, a second driving mechanism and two winding rods 45. The second driving mechanism includes a winding guide rail 42, a rotating motor 43 and a translation motor 44. The winding guide rail 42 is located on the winding mounting plate 41, and the winding guide rail 42 extends in the horizontal direction. The rotating motor 43 is installed on the translation motor 44, and the translation motor 44 can drive the rotating motor 43 to translate along the winding guide rail 42. The rotor of the rotating motor 43 is equipped with a turntable 46, and the rotating motor 43 drives the turntable 46 to rotate around the center of the turntable 46. The two winding rods 45 are fixed on the turntable 46, and the two winding rods 45 are respectively located on the two sides opposite to the center of the turntable 46, and the winding rods 45 extend in the horizontal direction. The winding rods 45 are located above the separating station 32. When the diaphragm 101 passes between the two winding rods 45, the rotating motor 43 can drive the turntable 46 to rotate, so that the two winding rods 45 wind the diaphragm 101 around the winding rods 45.

[0038] As Figure 2 、 Figure 6 and Figure 7As shown, the grasping device 5 includes a grasping mounting plate 51, a grasping guide rail 52, a robotic arm 53, and a grasping claw 54. The grasping mounting plate 51 is fixed on the frame table 11. The grasping guide rail 52 is fixed on the grasping mounting plate 51 and extends in the vertical direction. The robotic arm 53 is mounted on the grasping guide rail 52 and can move up and down along the grasping guide rail 52. The robotic arm 53 is connected to the grasping claw 54, and the grasping claw 54 moves vertically as the robotic arm 53 moves up and down. The robotic arm 53 is used to drive the grasping claw 54 to pass successively through the material plate 21, the separation station 32, and the winding rod 45. A grasping cylinder 531 is provided on the robotic arm 53, and the grasping cylinder 531 drives the grasping claw 54 to clamp or release the diaphragm 101.

[0039] As Figure 2-8 shown, the blanking device 6 includes a blanking mounting plate 61, a clamping claw 62, and a third driving mechanism. The third driving mechanism includes a blanking guide rail 63, a rack 64, a blanking motor 65, and a connecting frame 66. The blanking guide rail 63 is mounted on the blanking mounting plate 61, and the blanking mounting plate 61 is mounted on the frame table 11. The blanking guide rail 63 extends in the horizontal direction. The extending direction of the rack 64 is the same as that of the blanking guide rail 63. The rotor of the blanking motor 65 is mounted on the blanking gear, and the blanking gear meshes with the rack 64. The blanking motor 65 moves along the blanking guide rail 63 by rotating the rotor. The connecting frame 66 is fixed to the blanking motor 65. A clamping cylinder 661 is provided at one end of the connecting frame 66. The clamping claw 62 is mounted on the clamping cylinder 661. The clamping claw 62 includes a left clamping claw and a right clamping claw. The clamping cylinder 661 drives the left clamping claw and the right clamping claw to close or open. The left clamping claw and the right clamping claw clamp or release the diaphragm 101 on the winding rod 45 by closing or opening. The clamping claw 62 moves as the blanking motor 65 moves, and the winding rod 45 is located on the moving path of the clamping claw 62.

[0040] As Figure 2-5As shown, the driving rollers include an upper driving roller 34 and a lower driving roller 35. The upper driving roller 34 and the lower driving roller 35 are respectively located on opposite sides of the separating station 32. The two scrapers are divided into an upper scraper 36 and a lower scraper 37. The curved surface of the upper driving roller 34 faces the cutting edge of the upper scraper 36, and the curved surface of the lower driving roller 35 faces the cutting edge of the lower scraper 37. The first driving mechanism drives the upper driving roller 34 and the upper scraper 36 to move towards each other, and the first driving mechanism drives the lower driving roller 35 and the lower scraper 37 to move towards each other. When the diaphragm 101 passes through the separating station 32, the curved surface of the lower driving roller 35 abuts against the left side of the diaphragm 101, and the cutting edge of the lower scraper 37 is directly above the electrode on one side of the diaphragm 101. The diaphragm 101 is driven to move upwards by the lower driving roller 35. At the same time, the lower scraper 37 can scrape off the electrode on the diaphragm 101. By making the diaphragm 101 move upwards while adhering to the lower driving roller 35, the diaphragm 101 will not shake when the lower scraper 37 scrapes the electrode, and the process of scraping the electrode is smoother. Similarly, when the diaphragm 101 continues to move upwards, the curved surface of the upper driving roller 34 abuts against the right side of the diaphragm 101, and the cutting edge of the upper scraper 36 is directly above the electrode on the other side of the diaphragm 101. The upper scraper 36 can smoothly scrape off the electrode on the other side of the diaphragm 101.

[0041] As Figure 2-5As shown, the upper scraper 36 is above the lower scraper 37. The piston rod of the first upper air cylinder 331 is connected to the upper scraper 36 through a first upper connecting member. The first upper air cylinder 331 drives the upper scraper 36 to move horizontally. The separating device 3 further includes a first upper guide roller 381 and a second upper guide roller 382. The first upper guide roller 381 and the second upper guide roller 382 are respectively located on opposite sides of the separating station 32. The first upper guide roller 381 is rotatably mounted on the first upper connecting member. The first upper guide roller 381 moves as the upper scraper 36 moves. The side of the first upper guide roller 381 facing the second upper guide roller 382 is aligned with the cutting edge of the upper scraper 36 in the vertical direction. The piston rod of the second upper air cylinder 332 is connected to the upper power roller 34 through a second upper connecting member. The second upper air cylinder 332 drives the upper power roller 34 to translate. The second upper guide roller 382 is rotatably mounted on the second upper connecting member. The second upper guide roller 382 moves as the upper power roller 34 moves. The side of the upper power roller 34 facing the upper scraper 36 is aligned with the side of the second upper guide roller 382 facing the first upper guide roller 381 in the vertical direction. When using the upper scraper 36 in cooperation with the upper power roller 34 to scrape off the electrodes on the diaphragm 101, the diaphragm 101 can be clamped and guided by the first upper guide roller 381 and the second upper guide roller 382, so that the diaphragm 101 can maintain a vertically upward posture when being transmitted upward, further improving the smoothness of the upper scraper 36 in scraping off the electrodes.

[0042] As Figure 2-5As shown, the separating device 3 further includes a first lower guide roller 383 and a second lower guide roller 384. The first lower guide roller 383 and the second lower guide roller 384 are respectively located on opposite sides of the separating station 32. The piston rod of the second lower cylinder 334 is connected to the lower power roller 35 through a second lower connecting member. The second lower cylinder 334 drives the lower power roller 35 to translate. The first lower guide roller 383 is rotatably mounted on the second lower connecting member. The first lower guide roller 383 moves as the lower power roller 35 moves. One side of the first lower guide roller 383 facing the second lower guide roller 384 is aligned with one side of the lower power roller 35 facing the lower scraper 37 in the vertical direction. The piston rod of the first lower cylinder 333 is connected to the lower scraper 37 through a first lower connecting member. The first lower cylinder 333 drives the lower scraper 37 to move horizontally. The second lower guide roller 384 is rotatably mounted on the first lower connecting member. The second lower guide roller 384 moves as the lower scraper 37 moves. The cutting edge of the lower scraper 37 is aligned with one side of the second lower guide roller 384 facing the first lower guide roller 383 in the vertical direction. When using the lower scraper 37 to cooperate with the lower power roller 35 to scrape off the electrodes on the diaphragm 101, the diaphragm 101 can be clamped and guided by the first lower guide roller 383 and the second lower guide roller 384, so that the diaphragm 101 can maintain a vertically upward posture when being transmitted upward, further improving the smoothness of the lower scraper 37 in scraping off the electrodes, and cooperating with the first upper guide roller 381 and the second upper guide roller 382 to guide both the upper and lower ends of the diaphragm 101 located at the separating station 32, so as to always maintain a vertically upward posture when scraping off the electrodes on both sides of the diaphragm 101.

[0043] As Figure 2-6 shown, the fixing mechanism 22 is a suction cup. A notch is formed on the material plate 21. The suction cup corresponds to the notch. The suction cup is externally connected to an air extraction pump. The suction cup can fix the battery on the material plate 21 by negative pressure adsorption. In addition, the suction cup can also be used to detect whether the battery cell 100 is on the material plate 21, so as to understand whether the battery cell 100 is stably fixed on the material plate 21 before separating the battery cell 100; or so as to understand whether the winding rod 45 has finished winding the diaphragm 101. In actual use, only a barometer or a flow meter needs to be set on the air pipe connecting the suction cup to know whether the suction cup has adsorbed an object.

[0044] As Figure 2-3As shown in the figure, the feeding device 2 further includes a bracket 23 and a tipping cylinder 24. The material plate 21 is hinged to the bracket 23. The cylinder head of the tipping cylinder 24 is mounted on the bracket 23, and the piston rod of the tipping cylinder 24 is hinged to the bottom surface of the material plate 21. After the diaphragm 101 is taken away from the winding rod 45, one side of the material plate 21 can be lifted by the tipping cylinder 24, so that the upper surface of the material plate 21 is inclined relative to the horizontal plane, and the residues on the material plate 21 slide down along the upper surface of the material plate 21, thereby pouring out the remaining residues of the battery cell 100 on the material plate 21.

[0045] As Figure 2-3 shown in the figure, the feeding device 2 further includes a feeding guide rail 25, a feeding cylinder 26, a film pressing cylinder 27 and a film pressing clamp 28. The initial end of the feeding guide rail 25 is located outside the machine frame housing 12, and the end of the feeding guide rail 25 is located directly below the separation station 32. The material plate 21 moves along the feeding guide rail 25 under the push of the feeding cylinder 26. When the material plate 21 is at the initial end, the battery cell 100 can be placed on the material plate 21, and then the feeding cylinder 26 moves the material plate 21 into the machine frame housing 12 to isolate the separation process of the battery cell 100 from the outside world and ensure the safety of the staff. The film pressing clamp 28 is located on one side of the material plate 21. The film pressing clamp 28, the film pressing cylinder 27 and the fixing mechanism 22 slide along the feeding guide rail 25. The film pressing cylinder 27 is connected to the film pressing clamp 28, and the film pressing cylinder 27 drives the film pressing clamp 28 to open and close. When the material plate 21 is at the initial end of the feeding guide rail 25, the battery cell 100 is placed on the material plate 21. The suction cup can adsorb the battery cell 100 to fix the battery cell 100, while the film pressing clamp 28 clamps the end of the diaphragm 101 of the battery cell 100, thereby fixing the end of the diaphragm 101 of the battery cell 100 until the material plate 21 transports the battery cell 100 to the end of the feeding guide rail 25 and the gripping claw 54 is ready to grip the end of the diaphragm 101, then the film pressing clamp 28 releases the end of the diaphragm 101. By clamping the end of the diaphragm 101 with the film pressing clamp 28, the position of the end of the diaphragm 101 remains unchanged when the battery cell 100 is transferred, ensuring that the gripping claw 54 can accurately grip the end of the diaphragm 101.

[0046] As Figure 1-4As shown in the figure, the battery separator further includes a first collection box 7, a second collection box 8, and a blanking box 9. The blanking box 9 is located directly below the separation station 32 and between the first collection box 7 and the second collection box 8. The first collection box 7 is on the same side as the upper scraper 36 and is located on the left side of the blanking box 9. The second collection box 8 is on the same side as the lower scraper 37 and is located on the right side of the blanking box 9. The electrodes scraped from the separator 101 by the upper scraper 36 can fall into the first collection box 7, and the electrodes scraped from the separator 101 by the lower scraper 37 can fall into the second collection box 8. The blanking box 9 can receive the separator 101 dropped from the clamping claws 62. By providing the first collection box 7, the second collection box 8, and the blanking box 9, it is convenient to classify and recycle the separator 101, the positive and negative plates on the separator 101.

[0047] As Figure 2-8 shown in the figure, the blanking device 6 further includes a blanking plate 67 and a swing cylinder 68. The blanking plate 67 is located below the grasping claws 54. The swing cylinder 68 is connected to the blanking plate 67, and the swing cylinder 68 drives the blanking plate 67 to cover or open the opening of the second collection box 8. When the blanking plate 67 covers the opening of the second collection box 8, the blanking plate 67 is inclined relative to the horizontal plane and the bottom end of the blanking plate 67 faces the blanking box 9. When the lower scraper 37 scrapes the electrodes on the separator 101, the swing cylinder 68 controls the blanking plate 67 to open the opening of the second collection box 8, and the electrodes scraped by the lower scraper 37 can fall into the second collection box 8. When the winding rod 45 has wound up the separator 101 and the electrodes have been scraped off at this time, the blanking plate 67 covers the opening of the second collection box 8, and the blanking plate 67 is inclined relative to the horizontal plane and the bottom end of the blanking plate 67 faces the blanking box 9. The clamping claws 62 clamp away the wound-up separator 101 on the winding rod 45, and the clamping claws 62 then release the separator 101 directly above the blanking plate 67. The separator 101 falls on the blanking plate 67 and then slides down the blanking plate 67 into the blanking box 9, realizing the precise classification of the separator 101 and the electrodes.

[0048] A process method using a battery separator includes the following steps:

[0049] S01. Remove the outer shell of the battery in advance, remove the electrolyte in the battery, expose the end of the separator 101 of the battery from the battery cell 100, and initialize the feeding device 2, the separation device 3, the winding device 4, the grasping device 5, and the blanking device 6.

[0050] S02. Place the battery on the material plate 21 at the initial end of the feeding guide rail 25. The suction cup adsorbs the battery cell 100 through negative pressure, and determines whether the battery cell 100 is successfully loaded onto the material plate 21 by detecting the negative pressure vacuum degree of the suction cup. If the loading is successful, the film pressing cylinder 27 drives the film pressing clamp 28 to clamp the end of the separator 101, and the feeding cylinder 26 pulls the material plate 21 at the initial end to the end of the feeding guide rail 25, so that the battery cell 100 is located directly below the separation station 32.

[0051] S03. The film pressing clamp 28 releases the end of the separator 101, and the robotic arm 53 moves downward along the grasping guide rail 52, so that the grasping claw 54 is moved to the separator 101 of the battery, and the grasping claw 54 clamps the end of the separator 101.

[0052] S04. The robotic arm 53 rises along the grasping guide rail 52, and the grasping claw 54 is moved to the separation station 32. The grasping claw 54 pulls the end of the separator 101 to the separation station 32, and the separator 101 in the battery cell 100 gradually unfolds from the folded state. When the end of the separator 101 is higher than the top of the lower scraper 37, the lower power roller 35 starts to rotate, and the first lower cylinder 333 drives the lower scraper 37 to cut into the separation station 32. The second lower cylinder 334 simultaneously drives the lower power roller 35 to cut into the separation station 32 until the lower power roller 35 abuts against the separator 101, and the cutting edge of the lower scraper 37 is in the driving direction of the electrode on the separator 101. Then, the lower power roller 35 cooperates with the grasping claw 54 to drive the separator 101 upward, and the lower scraper 37 scrapes off the electrode on one side of the separator 101, and the scraped electrode falls into the second collection box 8. After the end of the separator 101 is higher than the cutting edge of the upper scraper 36, the upper power roller 34 starts to rotate, and the first upper cylinder 331 drives the upper scraper 36 to cut into the separation station 32. The second upper cylinder 332 simultaneously drives the upper power roller 34 to cut into the separation station 32 until the upper power roller 34 abuts against the separator 101, and the cutting edge of the upper scraper 36 is in the driving direction of the electrode on the separator 101. Then, the upper power roller 34 cooperates with the lower power roller 35 and the grasping claw 54 to drive the separator 101 upward, and the upper scraper 36 scrapes off the electrode on the other side of the separator 101, and the scraped electrode falls into the first collection box 7.

[0053] S05. The grasping claw 54 clamps the end of the separator 101 and rises above the separation station 32. After detecting that the end of the separator 101 reaches the winding device 4 through the photoelectric detection switch, the translation motor 44 starts to work. The translation motor 44 translates itself and the rotation motor 43 along the winding guide rail 42 toward the separator 101 until the two winding rods 45 pass through the opposite sides of the separator 101 respectively. After the separator 101 is located between the two winding rods 45, the rotation motor 43 drives the winding rods 45 to rotate around the center of the turntable 46, and the winding rods 45 start to wind up the separator 101. After the turntable 46 rotates a specific number of turns, the grasping claw 54 releases the separator 101;

[0054] S06. When the negative pressure vacuum degree of the suction cup detects that the suction cup does not adsorb an object, and the photoelectric detection switch detects that the winding rod 45 has finished winding the diaphragm 101, the rotation motor 43 controls the two winding rods 45 to be in a position relationship with one on top and the other below and stops rotating. The blanking motor 65 drives the connecting frame 66 to move along the blanking guide rail 63, so that the left clamping jaw and the right clamping jaw are respectively located on the left and right sides of the winding rod 45. The left clamping jaw and the right clamping jaw approach each other and clamp the wound diaphragm 101, and the separating device 3 resets. The flipping cylinder 24 drives the material plate 21 to flip, and the remaining residues on the material plate 21 fall from the material plate 21. The flipping cylinder 24 then makes the material plate 21 flip back and makes the upper plate surface of the material plate 21 in a horizontal state. Then the feeding device 2 resets. The translation motor 44 drives the winding rod 45 to reset, the blanking motor 65 drives the clamping jaw 62 away from the winding rod 45, and the swinging cylinder 68 controls the blanking plate 67 to cover the opening of the second collection box 8, so that the blanking plate 67 is inclined relative to the horizontal plane and the bottom end of the blanking plate 67 faces the blanking box 9. At this time, the clamping jaw 62 is located directly above the blanking plate 67, and the clamping jaw 62 releases the diaphragm 101. After the diaphragm 101 falls onto the blanking plate 67, it falls into the blanking box 9 along the blanking plate 67. Then the blanking device 6 resets, that is, the separation work of one power battery cell 100 is completed. When the separation work of multiple power battery cells 100 needs to be carried out, the above steps can be repeated.

[0055] In summary, the embodiment of the present invention provides a process method using a battery separator, which realizes the automatic feeding of the power battery cell 100, the automatic separation of the positive and negative plates, the automatic sorting and blanking of the positive and negative plates and the diaphragm 101, and realizes the fully automated production of the separation of the battery cell 100. Compared with using a chemical method to decompose the battery cell 100, the present invention disassembles and separates the positive electrode, negative electrode and diaphragm 101 materials of the cell 100 by a physical method, which is beneficial to simplifying the composition of the mixed materials, shortening the chemical purification process flow, significantly improving the production efficiency and resource recovery rate, reducing the dependence on labor, protecting the personal safety of the staff, effectively sealing and isolating dust, waste gas and noise, preventing the leakage and pollution of dust and waste gas of the power battery cell 100 to the environment, being beneficial to large-scale industrial production, and having good practical application value.

[0056] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A process method for battery separation, characterized in that, Including: S01. First, remove the outer shell of the battery, remove the electrolyte inside the battery, expose the end of the diaphragm of the battery from the battery cell, and initialize the feeding device, separating device, winding device, grasping device, and blanking device; S02. Place the battery on the material plate at the initial end of the feeding guide rail. After successful feeding, the film pressing cylinder drives the film pressing clamp to clamp the end of the diaphragm, and the feeding cylinder pulls the material plate at the initial end to the end of the feeding guide rail, so that the battery cell is directly below the separating station; S03. The robotic arm moves the grasping claw to the diaphragm of the battery, and the grasping claw clamps the end of the diaphragm; S04. The robotic arm rises along the grasping guide rail, and the robotic arm moves the grasping claw to the separating station. The grasping claw pulls the end of the diaphragm to the separating station. When the end of the diaphragm in the cell is higher than the top of the lower scraper, the lower power roller starts to rotate. The first lower cylinder drives the lower scraper to cut into the separating station, and the second lower cylinder simultaneously drives the lower power roller to cut into the separating station until the lower power roller abuts against the diaphragm. The cutting edge of the lower scraper is in the transmission direction of the electrode on the diaphragm. The lower power roller cooperates with the grasping claw to drive the diaphragm upward, and the lower scraper scrapes off the electrode on one side of the diaphragm. The scraped electrode falls into the second collection box. When the end of the diaphragm is higher than the cutting edge of the upper scraper, the upper power roller starts to rotate. The first upper cylinder drives the upper scraper to cut into the separating station, and the second upper cylinder simultaneously drives the upper power roller to cut into the separating station until the upper power roller abuts against the diaphragm. The cutting edge of the upper scraper is in the transmission direction of the electrode on the diaphragm. Then the upper power roller cooperates with the lower power roller and the grasping claw to drive the diaphragm upward, and the upper scraper scrapes off the electrode on the other side of the diaphragm. The scraped electrode falls into the first collection box; S05. The grasping claw clamps the end of the diaphragm and rises above the separating station. The second driving mechanism extends the winding rod towards the diaphragm and drives the winding rod to rotate. The winding rod winds the diaphragm, and the grasping claw releases the diaphragm; S06. After the winding rod winds up the diaphragm, the rotating motor controls the two winding rods to be in a position relationship with one above the other and stops rotating. The blanking motor drives the connecting frame to move along the blanking guide rail, so that the left clamping claw and the right clamping claw are respectively located on the left and right sides of the winding rod. The left clamping claw and the right clamping claw approach each other and clamp the wound diaphragm. The separating device resets. The flipping cylinder drives the material plate to flip, and the remaining residue on the material plate falls from the material plate. The flipping cylinder then rotates the material plate back to a state where its upper surface is horizontal, and then the feeding device resets.

2. The process method for battery separation according to claim 1, characterized in that: Including a feeding device, a separating device, a winding device, a grasping device, and a blanking device; The feeding device includes a material plate and a fixing mechanism for fixing the battery. The fixing mechanism is located on one side of the material plate; The separating device includes a separating station, a first driving mechanism, at least one power roller, and a pair of scrapers. The separating station is located above the material plate. The two scrapers are respectively located on opposite sides of the separating station. The cutting edge of the scraper faces the separating station. The first driving mechanism is respectively connected to the two scrapers and the power roller. The first driving mechanism drives the two scrapers and the power roller to cut into or out of the separating station, and the power roller rotates relative to the scraper; The winding device includes a second driving mechanism and a winding rod. The winding rod is located on the side of the separation station away from the feeding device, and the second driving mechanism is connected to the winding rod and drives the winding rod to rotate; The grasping device includes a robotic arm and a grasping claw. The robotic arm is connected to the grasping claw, and the robotic arm is used to drive the grasping claw to sequentially pass through the material plate, the separation station, and the winding rod; The blanking device includes a clamping claw and a third driving mechanism. The third driving mechanism is connected to the clamping claw and drives the clamping claw to translate. The winding rod is located on the moving path of the clamping claw.

3. The process method for battery separation according to claim 2, characterized in that: The power rollers include an upper power roller and a lower power roller. The upper power roller and the lower power roller are respectively located on opposite sides of the separation station. The two scraping plates are divided into an upper scraping plate and a lower scraping plate. The curved surface of the upper power roller faces the cutting edge of the upper scraping plate, and the curved surface of the lower power roller faces the cutting edge of the lower scraping plate. The first driving mechanism drives the upper power roller and the upper scraping plate to move towards each other, and the first driving mechanism drives the lower power roller and the lower scraping plate to move towards each other.

4. The process method for battery separation according to claim 3, characterized in that: The upper scraping plate is above the lower scraping plate. The first driving mechanism drives the upper scraping plate to move horizontally. The separation device further includes a first upper guiding roller and a second upper guiding roller. The first upper guiding roller and the second upper guiding roller are respectively located on opposite sides of the separation station. The first upper guiding roller moves with the upper scraping plate, and the side of the first upper guiding roller facing the second upper guiding roller is aligned with the cutting edge of the upper scraping plate in the vertical direction. The second upper guiding roller moves with the upper power roller, and the side of the upper power roller facing the upper scraping plate is aligned with the side of the second upper guiding roller facing the first upper guiding roller in the vertical direction.

5. The process method for battery separation according to claim 3, characterized in that: The lower scraping plate is below the upper scraping plate. The first driving mechanism drives the lower scraping plate to move horizontally. The separation device further includes a first lower guiding roller and a second lower guiding roller. The first lower guiding roller and the second lower guiding roller are respectively located on opposite sides of the separation station. The first lower guiding roller moves with the lower power roller, and the side of the first lower guiding roller facing the second lower guiding roller is aligned with the side of the lower power roller facing the lower scraping plate in the vertical direction. The second lower guiding roller moves with the lower scraping plate, and the cutting edge of the lower scraping plate is aligned with the side of the second lower guiding roller facing the first lower guiding roller in the vertical direction.

6. The process method for battery separation according to claim 2, wherein: The fixing mechanism is a suction cup. A notch is formed on the material plate, and the suction cup corresponds to the notch. The suction cup is used to adsorb the battery on the material plate.

7. The process method for battery separation according to claim 2, characterized in that: The feeding device further includes a bracket and a flipping cylinder. The material plate is hinged to the bracket. The cylinder head of the flipping cylinder is installed on the bracket, and the piston rod of the flipping cylinder is hinged to the bottom surface of the material plate.

8. The process method for battery separation according to claim 2, characterized in that: The feeding device further includes a feeding guide rail, a film pressing cylinder, and a film pressing clamp. The film pressing clamp is located on one side of the material plate. The film pressing clamp, the film pressing cylinder, the material plate, and the fixing mechanism slide along the feeding guide rail. The film pressing cylinder is connected to the film pressing clamp, and the film pressing cylinder drives the film pressing clamp to open and close.

9. The process method for battery separation according to claim 2, characterized in that: It further includes a first collection box, a second collection box, and a blanking box. The blanking box is located directly below the separation station, and the blanking box is located between the first collection box and the second collection box. The first collection box is on the same side as one of the scrapers, and the second collection box is on the same side as the other scraper.

10. The process method for battery separation according to claim 9, characterized in that: The blanking device further includes a blanking plate and a swing cylinder. The blanking plate is located below the gripping claws. The swing cylinder is connected to the blanking plate, and the swing cylinder drives the blanking plate to cover or open the opening of the second collection box. When the blanking plate covers the opening of the second collection box, the blanking plate is inclined relative to the horizontal plane and the bottom end of the blanking plate faces the blanking box.

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