A high-efficiency recycling and processing device and processing method for waste lithium iron phosphate batteries

Abstract

The present invention belongs to the field of battery processing technology, and relates to an efficient recycling and processing device and processing method for waste lithium iron phosphate batteries, including: a driving component 1 is used to drive a container to move to a dissolution tank, and a partition is provided inside the container; the side wall of the partition is provided with a plurality of through holes, and the bottom side of the partition is provided with a penetration groove, and the penetration groove at the bottom of the partition passes through the bottom of the container; the upper and lower ends of the container are both open, and the lower end of the container has a protruding support portion, and the partition is slidably arranged inside the container, and the bottom of the partition is connected to a bottom plate suitable for supporting on the support portion of the container and closing the lower end of the container. The through holes of the partition will quickly and effectively penetrate the organic solvent in the dissolution tank into the inner positive electrode sheets in the container, so that the organic solvent is not only dissolved from the outer positive electrode sheet by immersion, but also dissolved from the inner positive electrode sheet by penetration, thereby improving the efficiency of recycling and processing.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery processing, and in particular, relates to a highly efficient recycling and processing device and a processing method for waste lithium iron phosphate batteries. Background Art

[0002] Lithium iron phosphate battery is a lithium-ion battery that uses lithium iron phosphate as the positive electrode material. This type of battery has been widely used in electric vehicles, energy storage systems, power tools and other fields due to its high safety, long cycle life and relatively low cost.

[0003] In the recycling of waste lithium iron phosphate batteries, it is usually necessary to disassemble the positive and negative electrode materials of the battery and treat them separately. The treatment methods are divided into physical and chemical methods. The physical method is to crush the waste electrodes, and then use different sorting methods to separate the materials and recover the resources. The chemical method is to directly separate and purify the metal elements such as lithium, aluminum, and iron in the electrode materials through roasting, acid leaching, etc., among which the recovery rate of the chemical method is higher than that of the physical method.

[0004] In the existing devices for recycling waste lithium iron phosphate batteries by chemical methods, for example, a patent with a publication number of CN116979172B and a publication date of 2023-12-22 discloses a lithium iron phosphate waste recycling device and a method for preparing battery-grade lithium phosphate. The lithium iron phosphate waste recycling device places a positive electrode sheet in a container, and then immerses the container in an organic solvent in a dissolution tank, so that the contact portion of the adhesive with the organic solvent swells, so that the positive electrode material is peeled off from the surface of the aluminum foil;

[0005] However, when more positive electrode sheets are placed in the above container, the outer positive electrode sheets are easily squeezed toward the inner positive electrode sheets and adhered together under the squeezing pressure of the solvent, so that the solvent cannot effectively penetrate between the multiple positive electrode sheets, thereby reducing the recovery efficiency. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and to provide a highly efficient recycling and processing device and method for waste lithium iron phosphate batteries.

[0007] In order to solve the above technical problems, the present invention provides a high-efficiency recycling and processing device for waste lithium iron phosphate batteries, comprising a frame and a dissolving tank located at the bottom of the frame, a universal wheel is installed on the bottom side of the dissolving tank, an ultrasonic device for generating ultrasonic vibration and a heating device for heating an organic solvent are built into the dissolving tank, a driving component 1 is provided on the frame, a movable end of the driving component 1 is provided with a container with a plurality of through holes on the side wall, the driving component 1 is used to drive the container to move to the dissolving tank, and a partition is provided inside the container; a plurality of through holes are opened on the side wall of the partition, and a penetration groove is opened on the bottom side of the partition for the organic solvent in the dissolving tank to penetrate into the partition, and the penetration groove at the bottom of the partition passes through the bottom of the container; the upper and lower ends of the container are both open, the lower end of the container has a protruding support portion, the partition is slidably arranged inside the container, and the bottom of the partition is connected to a bottom plate suitable for supporting on the support portion of the container and closing the lower end of the container.

[0008] Preferably, a top plate is also included, and the top of the partition is connected to the top plate suitable for closing the upper end of the container.

[0009] Preferably, there are multiple partitions, the side walls of the multiple partitions are provided with a plurality of through holes, the bottom sides of the multiple partitions are provided with penetration grooves for the organic solvent in the dissolution tank to penetrate into the partitions, and the bottom plate is connected between the bottoms of the multiple partitions.

[0010] Preferably, driving component 1 includes an electric lifting module, and electric lifting modules are installed on the front and rear sides of the frame. The sliders of the electric lifting modules on the front and rear sides are respectively installed with electric translation modules and support rails. The container is arranged on the slider of the electric translation module, and the container slides on the support rails.

[0011] Preferably, driving component 1 also includes a mounting seat, the mounting seat is connected to the slider of the electric translation module, a rotating frame sliding on the supporting rail is rotatable on the mounting seat, a roller sleeve sliding on the supporting rail is rotatable at the rear end of the rotating frame, the rotating frame slides on the supporting rail through the roller sleeve, the container is connected to the rotating frame, the length of the support rail is less than the length of the electric translation module, and a driving component 2 for driving the rotating frame to rotate is provided on the mounting seat.

[0012] Preferably, drive component 2 includes a driven gear, and the front end of the rotating frame is connected to two left and right opposite driven gears. A servo motor is installed on one side of the mounting seat, and the output shaft of the servo motor is connected to two driving gears that are respectively meshed with the two driven gears through a transmission shaft.

[0013] Preferably, a support plate is also included. The lower part of the frame is connected to two left and right opposing support plates. The support plates are suitable for supporting the container after rotation and tilting, so as to share the torque for the servo motor and improve stability.

[0014] Preferably, it also includes a connecting frame, the upper side of the partition is connected to the connecting frame, the upper side of the mounting seat is connected to a supporting seat, the upper part of the supporting seat is provided with a rotating shaft, the left and right ends of the rotating shaft are respectively connected to a spur gear and an eccentric wheel suitable for lifting the connecting frame, the first end of the connecting frame extends to the upper side of the eccentric wheel; the front upper part of the frame is connected to a spur rack 1 suitable for meshing with the spur gear, and the spur rack 1 is located above the dissolution tank.

[0015] Preferably, it also includes a crossbeam, the frame is connected to the crossbeam, two inclined blocks suitable for extruding the connecting frame are connected to the crossbeam, the inclined surface of the inclined block is located on the upper side of the inclined block, and the second end of the connecting frame extends between the two inclined blocks.

[0016] Preferably, it also includes a spur rack 2, and the upper part of the frame is connected to two spur racks 2 suitable for meshing with the spur gear. The structure of the spur rack 2 is the same as that of the spur rack 1. The two spur racks 2 are respectively located on the left and right sides of the spur rack 1. The spur rack 2 is away from the dissolution tank, so that the container can be moved from the inside of the dissolution tank.

[0017] Preferably, a connecting column is also included, a strip groove is opened on one side of the container, the bottom of the partition is connected to a resistance part slidably arranged on the strip groove, the resistance part is in the shape of an arc, and two connecting columns opposite to each other on the left and right are connected to the frame, and a resistance rod is connected to the connecting column, and the resistance rod is suitable for passing through the strip groove on the container and squeezing the resistance part on the partition.

[0018] Preferably, a connecting pipe is also included. The abutment rod is a hollow structure with a plurality of through holes on it, the through holes facing the inner wall of the container, and a connecting pipe connected to the abutment rod is provided on the connecting column, and the connecting pipe is used for external cleaning water.

[0019] Preferably, there are two containers, which are driven by a driving assembly to move synchronously. When one container is immersed in the dissolving tank, the other container is located outside the dissolving tank, which is suitable for alternating use of the two containers.

[0020] The present invention also provides a treatment method according to the above-mentioned waste lithium iron phosphate battery efficient recycling and treatment device, comprising:

[0021] S1) placing the positive electrode sheets taken out from the waste lithium iron phosphate battery in a container, and using the partition in the container to separate the multiple positive electrode sheets;

[0022] S2) immersing the container containing the positive electrode sheet in a dissolution tank containing an organic solvent;

[0023] S3) the organic solvent penetrates into the outer positive electrode sheet through the through hole on the container, and the organic solvent penetrates into the inner positive electrode sheet through the through hole on the separator;

[0024] S4) peeling the positive electrode material from the surface of the aluminum foil by using an organic solvent;

[0025] S5) Slide the partition to open the container and push out the positive electrode piece synchronously through the bottom plate on the partition.

[0026] The present invention overcomes the shortcomings of the prior art and can achieve the following beneficial effects:

[0027] 1. The through holes of the interlayer will quickly and effectively penetrate the organic solvent in the dissolution tank into the inner positive electrode sheets in the container, so that the organic solvent is dissolved not only from the outer positive electrode sheets by immersion, but also from the inner positive electrode sheets by penetration, thereby improving the efficiency of recycling and processing.

[0028] 2. Control the second drive component to drive the rotating frame to drive the container to rotate, so that the container is tilted to facilitate the removal of the recycled positive electrode plates in the container; during the rotation of the container, the interlayer and the bottom plate are lifted up by the resistance rod, so as to automatically and synchronously rotate and tilt, open the container, and push out the positive electrode plates.

[0029] 3. Through the extrusion of the eccentric wheel, the bottom plate drives the positive electrode plate to shake off the excess organic solvent attached to the positive electrode plate, reducing the loss of organic solvent and facilitating the subsequent treatment of the positive electrode plate after immersion; and the excess organic solvent can be shaken off for a second time when it is removed from the dissolution tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an assembly schematic diagram of the present invention.

[0031] Figure 2 It is a schematic diagram of the electric translation module, support rails and container of the present invention.

[0032] Figure 3 It is a bottom view of the container of the present invention.

[0033] Figure 4 The present invention is based on Figure 3 Container cross-section view.

[0034] Figure 5 It is a schematic diagram of the present invention when there are multiple partitions.

[0035] Figure 6 It is a schematic diagram of the rear side of the mounting seat, rotating frame and container of the present invention.

[0036] Figure 7 The present invention is based on Figure 6 Structural separation diagram.

[0037] Figure 8 This is a schematic diagram of the positional relationship between the connecting frame and the eccentric wheel of the present invention. In order to save views and highlight key parts, only the connecting frame is shown.

[0038] Fig. 9 It is a left view of the present invention.

[0039] Fig.10 It is a schematic diagram of the rear side of the present invention, wherein the container is located in the dissolution tank.

[0040] Fig.11 The figure is a schematic diagram of the positional relationship among the cross beam, the inclined block and the connecting frame of the present invention, wherein only the part of the connecting frame is shown.

[0041] Fig.12 It is a schematic diagram of the present invention when the container has two.

[0042] Fig.13 For the present invention Fig.12 Enlarged view of point A.

[0043] Fig.14 It is a schematic diagram of the state of the container of the present invention when it is rotated and tilted.

[0044] Fig.15 For the present invention Fig.14 A cross-sectional view of the container during rotation and tilting.

[0045] The marks in the accompanying drawings provided by the present invention are:

[0046] 1-frame, 2-dissolution tank, 31-electric lifting module, 32-electric translation module, 33-support rail, 34-mounting seat, 35-rotating frame, 36-driven gear, 37-servo motor, 38-driving gear, 39-support plate, 41-container, 42-interlayer, 421-resistance part, 43-infiltration groove, 44-support part, 45-bottom plate, 46-top plate, 51-connecting frame, 52-support seat, 53-rotating shaft, 54-eccentric wheel, 55-spur gear, 56-spur rack 1, 57-spur rack 2, 61-crossbeam, 62-oblique block, 71-connecting column, 72-resistance rod, 73-connecting pipe. DETAILED DESCRIPTION

[0047] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0048] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. It should be noted that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0049] A high-efficiency recycling and processing device for waste lithium iron phosphate batteries, such as Figure 1-Figure 4 As shown, the machine comprises a frame 1 and a dissolving tank 2 located at the bottom of the frame 1, a universal wheel is installed at the bottom side of the dissolving tank 2, an ultrasonic device for generating ultrasonic vibration and a heating device for heating an organic solvent are built in the dissolving tank 2, a driving component 1 is provided on the frame 1, a container 41 with a plurality of through holes on the side wall is provided at the moving end of the driving component 1, and the driving component 1 is used to drive the container 41 to move to the dissolving tank 2 for immersion (such as Fig.10 ), the adhesive in the positive electrode sheet is dissolved by the organic solvent in the dissolving tank 2, so that the positive electrode material is peeled off from the surface of the aluminum foil, so as to recycle the positive electrode sheet of the waste lithium iron phosphate battery. The container 41 is provided with a partition 42 inside, and the positive electrode sheets are placed regularly layer by layer in the container 41 by using the partition 42; the side wall of the partition 42 is provided with a plurality of through holes, and the bottom side of the partition 42 is provided with a penetration groove 43 for the organic solvent in the dissolving tank 2 to penetrate into the partition 42, and the penetration groove 43 at the bottom of the partition 42 runs through the bottom of the container 41. When the container 41 is immersed in the dissolving tank 2, the organic solvent in the dissolving tank 2 will gradually penetrate into the partition 42 through the penetration groove 43 at the bottom of the partition 42, and the through holes of the partition 42 will quickly and effectively penetrate the organic solvent into the container 41. The container 41 is provided with a plurality of positive electrodes 46 disposed between the positive electrodes 46 and 47. The container 41 is provided with a plurality of positive electrodes 46 disposed between the positive electrodes 46 and 47. The positive electrodes 46 are disposed between the positive electrodes 46 and 47. The positive electrodes 46 are disposed between the positive electrodes 46 and 47. The positive electrodes 46 are disposed between the positive electrodes 46 and 47. The positive electrodes 46 are disposed between the positive electrodes 46 and 47. The positive electrodes 46 are disposed between the positive electrodes 46 and 47. The positive electrodes 46 are disposed between the positive electrodes 46 and 47. The positive electrodes 46 are disposed between the positive electrodes 46 and 47.

[0050] like Figure 2 , Figure 4 and Figure 5 As shown, it also includes a top plate 46. The top of the partition 42 is connected to the top plate 46 suitable for closing the upper end of the container 41. The positive electrode sheet is kept in the container 41 through the top plate 46, and the upward movement of the partition 42 will drive the top plate 46 to move up and open synchronously.

[0051] like Figure 5 As shown, there are multiple partitions 42, and the side walls of the multiple partitions 42 are provided with a plurality of through holes. The bottom sides of the multiple partitions 42 are provided with penetration grooves 43 for the organic solvent in the dissolution tank 2 to penetrate into the partitions 42, and the bottom plate 45 is connected between the bottoms of the multiple partitions 42; thereby, the multiple partitions 42 are further utilized to place the positive electrode plates in regular layers in the container 41, and the organic solvent is more effectively and fully penetrated between the multiple positive electrode plates during immersion.

[0052] like Figure 1 and Figure 2 As shown, the driving component 1 includes an electric lifting module 31, and the electric lifting module 31 is installed on the front and rear sides of the frame 1. The sliders of the electric lifting modules 31 on the front and rear sides are respectively installed with electric translation modules 32 and support rails 33. The container 41 is arranged on the slider of the electric translation module 32, and the container 41 slides on the support rails 33. The electric lifting module 31 is controlled to drive the electric translation module 32 and the support rails 33 to synchronously drive the container 41 to rise and fall, so that the container 41 above the dissolution tank 2 can be lowered into the dissolution tank 2. When the container 41 is lowered into the dissolution tank 2, the electric translation module 32 can also be controlled to make the container 41 shake left and right, so as to improve the dissolution effect during immersion; the electric translation module 32 is controlled to drive the container 41 to move left and right along the support rails 33, so that the lifted container 41 is translated away from the dissolution tank 2, so as to facilitate the placement of the positive electrode plate on the container 41.

[0053] like Figure 2 , Figure 6 and Figure 7 As shown, the driving component 1 also includes a mounting seat 34, and the slider of the electric translation module 32 is connected to the mounting seat 34. A rotating frame 35 that slides on the support rail 33 is rotatable on the mounting seat 34. A roller sleeve that slides on the support rail 33 is rotatable at the rear end of the rotating frame 35. The rotating frame 35 slides on the support rail 33 through the roller sleeve, and the loss caused by friction is reduced by the roller sleeve. The container 41 is connected to the rotating frame 35, so that the electric translation module 32 can be controlled to drive the mounting seat 34 to drive the container 41 to move left and right through the rotating frame 35. The length of the support rail 33 is less than the length of the electric translation module 32. After the electric translation module 32 is controlled to drive the mounting seat 34 to drive the rotating frame 35 to move away from the support rail 33, the rotating frame 35 can be rotated to drive the container 41 to rotate and tilt. A driving component 2 for driving the rotating frame 35 to rotate is provided on the mounting seat 34. After the positive electrode sheet in the container 41 is soaked and dissolved, the electric lifting module 31 and the electric translation module 32 are controlled to drive the container 41 to move to the right side of the dissolution tank 2 (as shown in FIG. Fig.12As shown; it needs to be explained that the position can also be the left side of the dissolution tank 2, the principle is the same, but this embodiment mainly takes the right side as an example), and then controls the drive component 2 to drive the rotating frame 35 to drive the container 41 to rotate, so that the container 41 is tilted to facilitate the removal of the recovered positive electrode plate in the container 41.

[0054] like Figure 6 and Figure 7 As shown, the driving component 2 includes a driven gear 36, and the front end of the rotating frame 35 is connected to two left and right opposite driven gears 36, and a servo motor 37 is installed on one side of the mounting seat 34. The output shaft of the servo motor 37 is respectively connected to two driving gears 38 meshing with the two driven gears 36 through a transmission shaft. The servo motor 37 is controlled to drive the driving gear 38 to rotate and mesh with the driven gear 36 to drive the rotating frame 35 to rotate; in another scheme, the motor can also be directly connected to the front end of the rotating frame 35 to achieve driving, or the motor drives the worm to mesh with the worm wheel connected to the front end of the rotating frame 35 to drive the rotating frame 35 to rotate; finally, the driving component 2 can realize the driving rotation of the rotating frame 35.

[0055] like Fig.14 As shown, the frame 1 further includes a support plate 39. The lower part of the frame 1 is connected to two support plates 39 opposite to each other. The support plates 39 are suitable for supporting the container 41 (such as Fig.14 ), so as to share the torque of the servo motor 37 and also improve the stability.

[0056] like Figure 1 , Figure 7 , Figure 8 and Fig. 9As shown, it also includes a connecting frame 51, the upper side of the interlayer 42 is connected to the connecting frame 51, the interlayer 42 is driven to slide along the container 41 by the connecting frame 51, the upper side of the mounting seat 34 is connected to a supporting seat 52, the upper part of the supporting seat 52 is rotatably provided with a rotating shaft 53, the left and right ends of the rotating shaft 53 are respectively connected with a spur gear 55 and an eccentric wheel 54 suitable for lifting the connecting frame 51, and the first end of the connecting frame 51 extends to the upper side of the eccentric wheel 54; when the container 41 moves down and is immersed in the dissolving tank 2, the eccentric wheel 54 is driven to rotate by the rotating shaft 53 to continuously lift up the connecting frame 51, and the connecting frame 51 will drive the bottom plate 45 to continuously shake up and down under the action of gravity through the interlayer 42, so as to loosen the positive electrode sheets when the positive electrode sheets are recycled, so as to facilitate the penetration of the organic solvent into the positive electrode sheets; and in the container 4 When the container 41 is moved out of the dissolution tank 2, the bottom plate 45 can drive the electrode plate to shake through the squeezing of the eccentric wheel 54 to shake off the excess organic solvent attached to the positive electrode plate, thereby reducing the loss of the organic solvent and facilitating the subsequent treatment of the positive electrode plate after immersion; the front upper part of the frame 1 is connected with a spur rack 56 suitable for meshing with the spur gear 55, and the spur rack 56 is located above the dissolution tank 2. When the container 41 is located directly above the dissolution tank 2, the lifting and lowering of the mounting seat 34 will cause the spur gear 55 to mesh with the spur rack 56, and the spur gear 55 will then drive the eccentric wheel 54 to rotate through the rotating shaft 53, so that the lifting and shaking steps are interrelated, with a high degree of automation, and the spur gear 55 when moving up to the threshold value and the spur gear 55 when moving down to the threshold value will not mesh with the spur rack 56.

[0057] like Fig.11 and Fig.12 As shown, it also includes a crossbeam 61, and the frame 1 is connected to the crossbeam 61. Two inclined blocks 62 suitable for squeezing the connecting frame 51 are connected to the crossbeam 61. The inclined surface of the inclined block 62 is located on the upper side of the inclined block 62, and the second end of the connecting frame 51 extends between the two inclined blocks 62. When the container 41 moves down into the dissolving tank 2, the connecting frame 51 will also move between the upper parts of the two inclined blocks 62. When the electric translation module 32 is controlled to make the container 41 immersed in the dissolving tank 2 shake left and right, the connecting frame 51 will alternately contact and cooperate with the two inclined blocks 62. The left inclined block 62 will squeeze the left-moving connecting frame 51 to move up, and the right inclined block 62 will squeeze the right-moving connecting frame 51 to move up, so that when the container 41 shakes left and right, the connecting frame 51 automatically drives the partition 42 and the bottom plate 45 to shake up and down, thereby further improving the dissolution effect during immersion.

[0058] like Fig.10 and Fig.12As shown, it also includes a straight rack 57. The upper part of the frame 1 is connected to two straight racks 57 suitable for meshing with the straight gear 55. The structure of the straight rack 57 is the same as that of the straight rack 1 56. The two straight racks 57 are respectively located on the left and right sides of the straight rack 1 56. The straight rack 2 57 is away from the dissolution tank 2, so that when the container 41 moves from the inside of the dissolution tank 2 to the right side of the dissolution tank 2 (such as Fig.12 ), the spur gear 55 first moves up and meshes with the spur rack 1 56, so that the excess organic solvent in the container 41 is shaken off back into the dissolution tank 2, and then the spur gear 55 moves right from the upper part of the spur rack 1 56 to the upper part of the spur rack 2 57. At this time, the spur rack moves down and meshes with the spur rack 2 57, so that the excess organic solvent is automatically and synchronously shaken off for a second time when the positive electrode plate in the container 41 needs to be taken in and placed.

[0059] like Figure 12-14 As shown, it also includes a connecting column 71, a strip groove is opened on one side of the container 41, and the bottom of the partition 42 is connected to a resistance part 421 slidably arranged on the strip groove, and the shape of the resistance part 421 is arc-shaped. Two left and right opposite connecting columns 71 are connected to the frame 1, and a resistance rod 72 is connected to the connecting column 71. When the rotating frame 35 drives the container 41 on the right (left) side of the dissolution tank 2 to rotate, the container 41 will drive the resistance part 421 on the partition 42 to contact the resistance rod 72, and the resistance rod 72 is suitable for passing through the strip groove on the container 41 and squeezing the resistance part 421 on the partition 42, so that the partition 42 and the bottom plate 45 (such as the bottom plate 45) are automatically and synchronously pushed out when the container 41 is tilted. Fig.14 ), further facilitating the operation of taking and placing the positive electrode sheet in the container 41, with high synchronization, eliminating the step of manually pushing out the partition 42 and the bottom plate 45.

[0060] like Fig.14 and Fig.15 As shown, a connecting pipe 73 is also included. The resistance rod 72 is a hollow structure. A plurality of through holes are opened on the resistance rod 72, and the through holes face the inner wall of the container 41. A connecting pipe 73 connected to the resistance rod 72 is provided on the connecting column 71. The connecting pipe 73 is used for external cleaning water. When the resistance rod 72 passes through the strip groove on the container 41 and pushes out the partition 42 and the bottom plate 45, the resistance rod 72 is located in the container 41 at this time, so that the cleaning water connected to the connecting pipe 73 is sprayed out from the through holes on the resistance rod 72 into the container 41, so as to clean the container 41 and also flush the positive electrode sheet attached to the container 41.

[0061] like Fig.12As shown, there are two containers 41, which are driven by a driving component 1 to move synchronously. When one container 41 is immersed in the dissolution tank 2, the other container 41 is located outside the dissolution tank 2. This is suitable for alternating the use of the two containers 41 for work. When one of the containers 41 is recycling the positive electrode sheets, the positive electrode sheets can be loaded or removed from the other container 41, thereby improving the continuity of the work and further improving the work efficiency.

[0062] A treatment method according to the above-mentioned waste lithium iron phosphate battery efficient recycling and treatment device includes:

[0063] S1) placing the positive electrode sheets taken out from the waste lithium iron phosphate battery in a container 41, and separating a plurality of positive electrode sheets by using a partition 42 in the container 41;

[0064] S2) immersing the container 41 containing the positive electrode sheet in a dissolution tank 2 filled with an organic solvent;

[0065] S3) the organic solvent penetrates into the outer positive electrode sheet through the through hole on the container 41, and the organic solvent penetrates into the inner positive electrode sheet through the through hole on the spacer 42;

[0066] S4) peeling the positive electrode material from the surface of the aluminum foil by using an organic solvent;

[0067] S5) Slide the partition 42 to open the container 41 and simultaneously push out the positive electrode sheet through the bottom plate 45 on the partition 42.

[0068] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. They only express the preferred implementation modes of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention.

[0069] It should be pointed out that, for ordinary technicians in this field, several modifications, increases and decreases in quantity, improvements and substitutions can be made without departing from the concept of the present invention. Therefore, based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

Claims

1. A waste lithium iron phosphate battery high-efficiency recycling and processing device, comprising a frame (1) and a dissolution tank (2), wherein a driving component 1 is provided on the frame (1), a container (41) having a plurality of through holes on the side wall is provided at the moving end of the driving component 1, the driving component 1 is used to drive the container (41) to move to the dissolution tank (2), and a partition (42) is provided inside the container (41); characterized in that: The container (41) further comprises a bottom plate (45), a plurality of through holes are formed on the side wall of the partition (42), a penetration groove (43) is formed on the bottom side of the partition (42), and the penetration groove (43) at the bottom of the partition (42) penetrates the bottom of the container (41); the upper and lower ends of the container (41) are both open, the lower end of the container (41) has a protruding support portion (44), the partition (42) is slidably arranged inside the container (41), and the bottom of the partition (42) is connected to a bottom plate (45) suitable for being supported on the support portion (44) of the container (41) and sealing the lower end of the container (41); The driving component 1 comprises an electric lifting module (31), the electric lifting modules (31) are installed on both sides of the frame (1), the electric translation modules (32) and the support rails (33) are installed on the sliders of the electric lifting modules (31) on both sides, respectively, the container (41) is arranged on the sliders of the electric translation module (32), and the container (41) slides on the support rails (33); The driving assembly 1 further comprises a mounting seat (34), the mounting seat (34) being connected to the slider of the electric translation module (32), a rotating frame (35) sliding on the support rail (33) being rotatable on the mounting seat (34), the container (41) being connected to the rotating frame (35), the length of the support rail (33) being shorter than the length of the electric translation module (32), and a driving assembly 2 for driving the rotating frame (35) to rotate being provided on the mounting seat (34); It also includes a connecting frame (51), the upper side of the partition (42) is connected to the connecting frame (51), the mounting seat (34) is connected to a support seat (52), the upper part of the support seat (52) is provided with a rotating shaft (53), the two ends of the rotating shaft (53) are respectively connected to a spur gear (55) and an eccentric wheel (54) suitable for lifting the connecting frame (51), and the first end of the connecting frame (51) extends to the upper side of the eccentric wheel (54); the frame (1) is connected to a spur rack (56) suitable for meshing with the spur gear (55), and the spur rack (56) is located above the dissolution tank (2); It also includes a crossbeam (61), the frame (1) is connected to the crossbeam (61), and the crossbeam (61) is connected to an inclined block (62) suitable for extruding the connecting frame (51); It also includes a second spur rack (57). The frame (1) is connected to the second spur rack (57) suitable for meshing with the spur gear (55). The structure of the second spur rack (57) is the same as that of the first spur rack (56). The second spur rack (57) is far away from the dissolution tank (2).

2. The high-efficiency recycling and processing device for waste lithium iron phosphate batteries according to claim 1 is characterized in that: The invention also comprises a connecting column (71), a strip groove is formed on one side of the container (41), a bottom of the partition (42) is connected to a resisting portion (421) slidably arranged on the strip groove, the frame (1) is connected to the connecting column (71), and a resisting rod (72) is connected to the connecting column (71), and the resisting rod (72) is suitable for passing through the strip groove on the container (41) and squeezing the resisting portion (421) on the partition (42).

3. The high-efficiency recycling and processing device for waste lithium iron phosphate batteries according to claim 2 is characterized in that: It also includes a connecting pipe (73). The abutment rod (72) is a hollow structure. A plurality of through holes are formed on the abutment rod (72). The through holes face the inner wall of the container (41). The connecting column (71) is provided with a connecting pipe (73) connected to the abutment rod (72).

4. The high-efficiency recycling and processing device for waste lithium iron phosphate batteries according to claim 1 is characterized in that: There are two containers (41), and the two containers (41) are driven by a driving component 1 to move synchronously. When one container (41) is immersed in the dissolution tank (2), the other container (41) is located outside the dissolution tank (2), so that the two containers (41) are used alternately.

5. A method for efficiently recycling and treating waste lithium iron phosphate batteries according to claim 1, characterized in that: Included are: S1) placing the positive electrode sheets taken out from the waste lithium iron phosphate battery in a container (41), and using a partition (42) in the container (41) to separate a plurality of positive electrode sheets; S2) immersing the container (41) containing the positive electrode sheet in a dissolution tank (2) containing an organic solvent; S3) the organic solvent penetrates into the outer positive electrode sheet through the through hole on the container (41), and the organic solvent penetrates into the inner positive electrode sheet through the through hole on the spacer (42); S4) peeling the positive electrode material from the surface of the aluminum foil by using an organic solvent; S5) Sliding the partition (42) to open the container (41) and simultaneously pushing out the positive electrode sheet through the bottom plate (45) on the partition (42).

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