Ceramic edge lithium battery positive plate cutting device

Abstract

The utility model discloses a ceramic edge lithium battery positive plate cutting device. The ceramic edge lithium battery positive plate cutting device comprises a cutting platform, a pressing plate installed on the cutting platform, a CCD recognizing and cutting device, a conveying chain and a rolling wheel. The positions of the boundaries of the ceramic material and the positive electrode material are recognized through the CCD material recognition instrument, a signal is transmitted to the cutter position adjusting motor to drive the cutter to rotate the lead screw to adjust the position of the cutter, and the ceramic material piece and the positive electrode material piece of the ceramic edge positive electrode piece are separated through the cutter; the separation of the ceramic material and the positive electrode material can be realized, and then the ceramic material and the positive electrode material are subjected to centralized classification treatment, so that the purity and value of recycled products are ensured, the battery recycling efficiency is improved, and the recycling cost of waste lithium batteries is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of recycling waste lithium batteries and relates to a device for cutting positive electrode sheets of ceramic-edged lithium batteries. Background Art

[0002] With the continuous development of new energy technologies, lithium-ion batteries have been widely used in consumer electronics, new energy vehicles and other fields. Lithium-ion battery positive electrode materials are an important component of lithium-ion batteries and also affect their performance. The main positive electrode materials of lithium-ion batteries are lithium iron phosphate positive electrodes, ternary positive electrodes, etc. However, lithium iron phosphate has the disadvantages of low energy density, poor low temperature resistance, and a large gap between high and low temperature charge and discharge rates. At the same time, ternary materials also have the disadvantages of poor high temperature resistance, short cycle life, and high cost. In order to overcome the defects of both, a new type of positive electrode sheet containing ceramic edges has been derived in recent years. Through the improvement of materials and structures, the electrochemical properties of lithium batteries are improved to a certain extent, showing high fracture toughness, high strength, and good high temperature / low temperature performance.

[0003] In recent years, lithium batteries with ceramic positive electrode materials have been widely used, which has led to the issue of their recycling and disposal. However, the existing recycling process does not have the technology and related process equipment that match the recycling of ceramic edge positive electrode sheets. If the current technology is used to recycle ceramic material sheets, ceramic impurities will inevitably be introduced into the recycled products, greatly reducing the quality and price of the recycled materials, and putting pressure on the back-end hydrometallurgical process. Therefore, in order to facilitate the separate recycling and processing of positive electrode sheet materials and ceramic sheet materials, it is urgent to develop a process that meets the recycling and processing of ceramic edge lithium battery positive electrode sheets, thereby improving battery recycling efficiency and saving the recycling cost of waste lithium batteries. Utility Model Content

[0004] The utility model aims to provide a device for cutting positive electrode sheets of lithium batteries with ceramic edges, so as to improve the battery recycling efficiency and save the recycling cost of waste lithium batteries.

[0005] In order to achieve the above utility model purpose, the utility model adopts the following technical solutions:

[0006] A ceramic edge lithium battery positive electrode sheet cutting device, comprising a cutting platform, a pressing plate installed on the cutting platform, a CCD recognition and cutting device, a transmission chain and a rolling wheel;

[0007] Two transmission chains are installed on both sides of the cutting platform respectively, and the chain motor is installed on one side of the cutting platform. The chain motor drives the two transmission chains to rotate through the chain transmission rod. The rolling wheel and the chain transmission rod are arranged parallel to each other on the cutting platform. The rolling wheel shaft of the rolling wheel is connected to the transmission chains on both sides. The rolling wheel is driven to rotate through the transmission chain to roll and unfold the rolled ceramic edge positive electrode sheet.

[0008] The CCD identification and cutting device comprises a cutter rotating motor, a cutter and a CCD material identification instrument. The cutter rotating motor and the CCD material identification instrument are fixed by a fixed rod on a straight line along the rolling direction of the rolling wheel, and the cutter is installed on the cutter rotating motor; the fixed rod is installed on a support frame, and a cutter rotating screw rod and two fixed rod moving shafts are also arranged in parallel on the support frame. The cutter rotating screw rod and the two fixed rod moving shafts pass through the fixed rod, and a cutter position adjustment motor for driving the cutter rotating screw rod to rotate is installed on one side of the support frame, and the fixed rod is driven to move along the two fixed rod moving shafts through the cutter rotating screw rod;

[0009] The support frame is installed on the cutting platform through the cutter height adjustment rods arranged on both sides of the cutting platform. The cutter height adjustment rods are respectively connected to the transmission chains on both sides. The transmission chains drive the entire support frame to move along the length direction of the cutting platform. The cutter height adjustment rods are used to adjust the height of the cutter and the CCD material identification instrument from the cutting surface.

[0010] The CCD material identification instrument is used to identify the position of the boundary between the ceramic material and the positive electrode material, thereby transmitting the signal to the cutter position adjustment motor to drive the cutter to rotate the lead screw to adjust the position of the cutter;

[0011] The pressing plate is installed on one side of the cutting platform near the end position, and the pressing plate is connected to a pressing plate motor, and the pressing plate is driven by the pressing plate motor to open and close.

[0012] Furthermore, a positive electrode material sheet robot arm and a ceramic material sheet robot arm are arranged on the cutting platform near the end position on the side opposite to the pressing plate. The positive electrode material sheet robot arm and the ceramic material sheet robot arm are respectively installed on the cutting platform through the robot arm rotating shaft. Suction cups are arranged at the bottom of the positive electrode material sheet robot arm and the ceramic material sheet robot arm for sucking the positive electrode material sheet and the ceramic material sheet for transfer respectively.

[0013] Furthermore, a slide groove is provided on the cutter height adjustment rod along the axial direction, and the cutter height adjustment rod is connected to the transmission chains on both sides through a screw rod penetrating the slide groove, and a cutter height adjustment rod nut is provided on the screw rod. After the cutter height adjustment rod is adjusted to a certain height, the cutter height adjustment rod and the screw rod are locked by the cutter height adjustment rod nut.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] This utility model patent provides a device for cutting ceramic edge lithium battery positive electrode sheets, which can roll and unfold the rolled ceramic edge lithium battery positive electrode sheets, and then identify the position of the boundary between the ceramic material and the positive electrode material through the CCD material identification instrument, transmit the signal to the cutter position adjustment motor to drive the cutter to rotate the screw rod to adjust the position of the cutter, and separate the ceramic material sheet and the positive electrode material sheet of the ceramic edge positive electrode sheet through the cutter. Finally, the ceramic material sheet and the positive electrode material sheet are transported separately by the mechanical arm. In addition, the CCD identification and cutting device and the rolling wheel can be reset through the transmission chain for cyclic operation. This utility model patent can realize the separation of ceramic materials and positive electrode materials, and then classify and process them in a centralized manner. Thereby ensuring the purity and value of the recycled products, improving the battery recycling efficiency, and saving the recycling cost of waste lithium batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the CCD intelligent identification roller cutting bed in the utility model;

[0017] Figure 2 This is a schematic diagram of the top structure of the CCD intelligent identification roller cutting bed of the utility model;

[0018] Figure 3 It is a side structural schematic diagram of the CCD intelligent identification roller cutting bed of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the pressing plate 1 of the CCD intelligent identification roller cutting machine of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the mechanical arm 2 of the CCD intelligent identification roller cutting machine of the utility model;

[0021] Figure 6 It is a schematic diagram of the structure of the transmission chain 4 of the CCD intelligent identification roller cutting bed of the utility model;

[0022] Description of reference numerals:

[0023] 1-Pressing plate; 2-Robotic arm;

[0024] 3-CCD recognition and cutting device; 4-Transmission chain;

[0025] 5-rolling wheel; 6-pressing plate motor

[0026] 7-chain motor 8-chain transmission rod

[0027] 9-Cutter position adjustment motor 10-Cutter rotation screw

[0028] 11-cutter rotation motor 12-cutter

[0029] 13-Fixed rod 14-Fixed rod moving axis

[0030] 15-CCD material identification instrument 16-Rolling wheel shaft

[0031] 17-Robotic arm rotation axis 18-Cutter height adjustment lever

[0032] 19-Positive electrode material sheet robot 20-Ceramic material sheet robot

[0033] 21-Cutter height adjustment rod nut. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0035] like Figure 1 As shown, the ceramic edge lithium battery positive electrode sheet cutting device of the utility model includes a cutting platform, a pressing plate 1 installed on the cutting platform, a mechanical arm 2, a CCD identification and cutting device 3, a transmission chain 4 and a rolling wheel 5. The pressing plate 1 is used to compact the open side of the rolled positive electrode sheet, so that the rolling wheel 5 can roll and unfold the rolled positive electrode sheet. The CCD identification and cutting device 3 is used to identify the ceramic material and the positive electrode material, and use a blade to cut and divide them at their boundaries to separate the ceramic material sheet and the positive electrode material sheet. The mechanical arm 2 is used to convey the ceramic material sheet and the positive electrode material sheet to the first conveyor 2 and the second conveyor 18 respectively for separate processing. The transmission chain 4 is used to realize the movement and resetting of the CCD identification and cutting device 3 and the rolling wheel 5.

[0036] See also Figure 2 and Figure 3 As shown, transmission chains 4 are respectively arranged on both sides of the cutting platform, and a chain motor 7 is installed on one side of the cutting platform. The chain motor 7 drives the chain transmission rod 8 and then drives the two transmission chains 4 to rotate, thereby pulling the rolling wheel shaft 16 to drive the rolling wheel 5 to rotate, and the rolled ceramic edge positive electrode sheet is rolled and unfolded.

[0037] The CCD identification and cutting device 3 includes a cutter rotating motor 11, a cutter 12 and a CCD material identification instrument 15. The cutter rotating motor 11 and the CCD material identification instrument 15 are fixed by a fixed rod 13 on a straight line along the rolling direction of the rolling wheel 5, and the cutter 12 is installed on the cutter rotating motor 11. The fixed rod 13 is installed on the support frame, and the support frame is also provided with a cutter rotating screw rod 10 and two fixed rod moving shafts 14 in parallel. The cutter rotating screw rod 10 and the two fixed rod moving shafts 14 penetrate the fixed rod 13. A cutter position adjustment motor 9 driving the cutter rotating screw rod 10 to rotate is installed on one side of the support frame. The fixed rod 13 is driven to move along the two fixed rod moving shafts 14 by the cutter rotating screw rod 10, so that the cutter position adjustment motor 9 controls the position adjustment of the cutter 12 and the CCD material identification instrument 15 along the width direction on the cutting platform by driving the cutter rotating screw rod 10.

[0038] The CCD material identification device 15 is used to identify the position of the boundary between the ceramic material and the positive electrode material, thereby transmitting a signal to the cutter position adjustment motor 9, thereby driving the cutter rotation screw 10 to adjust the position of the cutter 12. The cutter rotation motor 11 drives the cutter 12 to rotate, thereby completing the separation of the ceramic material sheet and the positive electrode material sheet.

[0039] The cutter height adjustment rod 18 is used to adjust the height of the cutter 12 and the CCD material identification device 15 from the cutting surface. The support frame is installed on the cutting platform through the cutter height adjustment rods 18 arranged on both sides of the cutting platform. The cutter height adjustment rods 18 are respectively connected to the transmission chains 4 on both sides, and the transmission chains 4 drive the entire support frame to move along the length direction of the cutting platform. The cutter height adjustment rod 18 is provided with a slide groove along the axial direction. The cutter height adjustment rod 18 is connected to the transmission chains 4 on both sides through a screw rod passing through the slide groove. The screw rod is provided with a cutter height adjustment rod nut 21. When the cutter height adjustment rod 18 is adjusted to a certain required height, the cutter height adjustment rod nut 21 is used to lock the cutter height adjustment rod 18 and the screw rod.

[0040] See also Figure 4 As shown, the pressing plate 1 is installed on one side of the cutting platform near the end position, and the pressing plate 1 is connected to the pressing plate motor 6. The pressing plate motor 6 drives the pressing plate 1 to open and close to compact the open side of the rolled positive electrode sheet.

[0041] See also Figure 5As shown, the robot arm 2 is divided into a positive electrode material sheet robot arm 19 and a ceramic material sheet robot arm 20, which are arranged on the cutting platform at a side opposite to the pressing plate 1 and close to the end position, and the positive electrode material sheet robot arm 19 and the ceramic material sheet robot arm 20 are respectively rotated on the cutting platform through the robot arm rotating shaft 17, and the two are rotated through the robot arm rotating shaft 17. Suction cups are arranged at the bottom of the positive electrode material sheet robot arm 19 and the ceramic material sheet robot arm 20, which can respectively suck the positive electrode material sheet and the ceramic material sheet for transfer.

[0042] See also Figure 6 As shown, the rolling wheel shaft 16 and the cutter height adjustment rod nut 21 are respectively connected to the transmission chain 4 on both sides of the cutting platform, and the rolling wheel shaft 16 and the cutter height adjustment rod nut 21 are driven by the transmission chain 4 to move to complete the rolling and cutting operations. The rolling wheel shaft 16 and the cutter height adjustment rod nut 21 are driven by the transmission chain 4 to reciprocate.

Claims

1. A device for cutting positive electrode sheets of lithium batteries with ceramic edges, characterized by: It comprises a cutting platform, a pressing plate (1) installed on the cutting platform, a CCD recognition and cutting device (3), a transmission chain (4) and a rolling wheel (5); Two transmission chains (4) are respectively installed on both sides of the cutting platform, a chain motor (7) is installed on one side of the cutting platform, the chain motor (7) drives the two transmission chains (4) to rotate through a chain transmission rod (8), a rolling wheel (5) and the chain transmission rod (8) are arranged parallel to each other on the cutting platform, a rolling wheel shaft (16) of the rolling wheel (5) is connected to the transmission chains (4) on both sides, and the rolling wheel (5) is driven to rotate by the transmission chain (4) to roll and unfold the rolled ceramic edge positive electrode sheet; The CCD identification and cutting device (3) comprises a cutter rotating motor (11), a cutter (12) and a CCD material identification instrument (15). The cutter rotating motor (11) and the CCD material identification instrument (15) are fixed by a fixed rod (13) on a straight line along the rolling direction of the rolling wheel (5). The cutter (12) is mounted on the cutter rotating motor (11); the fixed rod (13) is mounted on a support frame, and a cutter rotating screw rod (10) and two fixed rod moving shafts (14) are also arranged in parallel on the support frame. The cutter rotating screw rod (10) and the two fixed rod moving shafts (14) pass through the fixed rod (13). A cutter position adjustment motor (9) for driving the cutter rotating screw rod (10) to rotate is mounted on one side of the support frame. The fixed rod (13) is driven to move along the two fixed rod moving shafts (14) by the cutter rotating screw rod (10). The support frame is installed on the cutting platform through the cutter height adjustment rods (18) provided on both sides of the cutting platform. The cutter height adjustment rods (18) are respectively connected to the transmission chains (4) on both sides. The transmission chains (4) drive the entire support frame to move along the length direction of the cutting platform. The cutter height adjustment rods (18) are used to adjust the height of the cutter (12) and the CCD material identification device (15) from the cutting surface. The CCD material identification device (15) is used to identify the position of the boundary between the ceramic material and the positive electrode material, thereby transmitting a signal to the cutter position adjustment motor (9) to drive the cutter to rotate the screw rod (10) to adjust the position of the cutter (12); The pressing plate (1) is installed on one side of the cutting platform near the end position, and the pressing plate (1) is connected to the pressing plate motor (6), and the pressing plate motor (6) drives the pressing plate (1) to move to achieve opening and closing.

2. The device for cutting the positive electrode sheet of a lithium battery with a ceramic edge according to claim 1, characterized in that: A positive electrode material sheet mechanical arm (19) and a ceramic material sheet mechanical arm (20) are provided on the cutting platform at a side opposite to the pressing plate (1) near the end position. The positive electrode material sheet mechanical arm (19) and the ceramic material sheet mechanical arm (20) are respectively rotated on the cutting platform via mechanical arm rotating shafts (17). Suction cups are provided at the bottom of the positive electrode material sheet mechanical arm (19) and the ceramic material sheet mechanical arm (20) for sucking the positive electrode material sheet and the ceramic material sheet for transfer respectively.

3. The device for cutting the positive electrode sheet of a lithium battery with a ceramic edge according to claim 2, characterized in that: The cutter height adjustment rod (18) is provided with a sliding groove in the axial direction. The cutter height adjustment rod (18) is connected to the transmission chains (4) on both sides through a screw rod penetrating the sliding groove. A cutter height adjustment rod nut (21) is provided on the screw rod. After the cutter height adjustment rod (18) is adjusted to a certain height, the cutter height adjustment rod (18) and the screw rod are locked by the cutter height adjustment rod nut (21).

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