Lithium battery nondestructive recovery device and method

Abstract

The invention discloses a lithium battery lossless recovery device which comprises a battery cell separation device and a battery cell pole piece finish-milling device installed in the next procedure. The battery cell separation equipment comprises a first rack assembly and a first clamping and unloading assembly mounted on the first rack assembly, and the first rack assembly can separate a battery cell and a cover plate when the first clamping and unloading assembly clamps a lithium battery module to move; the battery cell pole piece finish milling equipment comprises a second rack assembly and a second clamping and discharging assembly installed on the second rack assembly, and the second rack assembly can conduct finish milling when the second clamping and discharging assembly clamps the battery cell to move. According to the invention, the battery cell separation equipment and the battery cell pole piece finish milling equipment are arranged, the aluminum row on the battery is cut by the battery cell separation equipment, the adjacent battery cells are separated, and then the divided aluminum row above the battery cell pole column is subjected to finish milling, so that the surfaces of the positive pole column and the negative pole column of the battery cell are not damaged, and the secondary utilization of the battery cell is facilitated; the problem of non-destructive recovery of the battery cell is solved, and the battery cell recovery efficiency and quality are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery manufacturing, and in particular to a non-destructive recycling device and method for lithium batteries. Background Art

[0002] In recent years, my country's new energy vehicle industry has maintained rapid growth. In 2022, my country's new energy vehicle production exceeded 7 million units, ranking first in the world for eight consecutive years. In the coming years, a peak in power battery scrappage is expected to gradually approach. Therefore, exploring lithium battery recycling technology has become a focus and a challenge for the new energy industry. Currently, the domestic new energy industry's lithium battery recycling technology and equipment are not yet mature, lithium battery recycling standards have not yet been established, and application directions are currently not unified.

[0003] For example, in the existing patent technology with the patent publication number "CN119407257A" and the patent name "A lithium battery cell disassembly and recycling device", it specifically discloses that "it includes a bottom plate, a transparent shell is provided on the top of the bottom plate, a baffle is slidably provided on the transparent shell, and a feeding mechanism is provided on the bottom plate, and the feeding mechanism is used to feed the waste lithium batteries into the transparent shell. The present invention fills the transparent shell with nitrogen through the gas transmission mechanism, and then feeds the waste lithium batteries into the transparent shell through the feeding mechanism, and then cooperates with the clamping conveyor, ceramic saw blade, push block, detection mechanism and absorption mechanism to realize automatic disassembly of the waste lithium batteries and automatic collection of the electrolyte, which not only saves time and labor but also has high efficiency". The above technology does not record the specific disassembly method for the aluminum busbar position. Ordinary disassembly will damage the aluminum busbar and make the battery cell unable to be used again.

[0004] Some existing methods of lithium battery recycling devices use machining principles to mill the welds between the aluminum bars and the battery cell poles, and then separate the battery cells. However, this method can easily damage the surface of the battery cell poles, causing the battery cells to be scrapped. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: how to solve the problem of lossless recycling of battery cells and improve the efficiency and quality of battery cell recycling.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A non-destructive recycling device for lithium batteries, comprising a cell separation device and a cell pole piece fine milling device installed in a subsequent process;

[0008] The cell separation device includes a first frame assembly and a first clamping and unloading assembly mounted thereon, wherein the first frame assembly is capable of separating the cell cover when the first clamping and unloading assembly clamps the lithium battery module and moves;

[0009] The battery cell pole piece fine milling equipment includes a second frame assembly and a second clamping and unloading assembly installed thereon. The second frame assembly can perform fine milling when the second clamping and unloading assembly clamps the battery cell and moves.

[0010] The present invention provides battery cell separation equipment and battery cell pole piece precision milling equipment, uses the battery cell separation equipment to cut the aluminum bars on the battery to separate adjacent battery cells, and then uses precision milling to process the separated aluminum bars above the battery cell poles. The above-mentioned arrangement does not damage the surface of the positive and negative poles of the battery cells, facilitates the secondary utilization of the battery cells, solves the problem of lossless recycling of battery cells, and greatly improves the efficiency and quality of battery cell recycling.

[0011] As a further solution of the present invention: an explosion-proof box is provided at one end of the first rack assembly, wherein the first clamping and unloading assembly can push the lithium battery module to move into the explosion-proof box.

[0012] This application sets up an explosion-proof box, and the burning battery module or battery cell can be pushed into the explosion-proof box through a cylinder. This series of explosion-proof mechanisms is fully automated to avoid danger caused by human participation. It has fire and explosion-proof functions, and solves the problem of explosion hazards that are prone to occur during disassembly using traditional methods.

[0013] As a further solution of the present invention: the first frame assembly includes a work table, which is connected to the laser through a multi-directional drive assembly, and CCD visual cameras, infrared temperature sensors and laser ranging sensors are provided on both sides of the laser, wherein the active surfaces of the CCD visual camera, infrared temperature sensor, laser ranging sensor and laser face the work table.

[0014] This application separates the module into individual cells without damaging the cells, and through the cooperation between the CCD visual camera and the laser ranging sensor, it can not only accurately identify the cutting position and depth, but also be compatible with the cell separation of multiple modules.

[0015] As a further solution of the present invention: the multi-directional drive assembly includes an X-axis screw module, a Y-axis screw module and a Z-axis screw module, wherein the X-axis screw module is arranged along the "X" axis direction of the work table;

[0016] Both ends of the Y-axis screw module are connected to the X-axis screw module through connecting brackets, and the Z-axis screw module is installed on the Y-axis screw module;

[0017] The CCD visual camera, infrared temperature sensor, laser distance sensor and laser are all installed on the Z-axis screw module.

[0018] This application sets up an X-axis screw module, a Y-axis screw module and a Z-axis screw module. Through the cooperation of the three, it can achieve multi-directional position adjustment of the CCD visual camera, infrared temperature sensor, laser ranging sensor and laser, which is more flexible.

[0019] As a further solution of the present invention: the Y-axis screw module is arranged parallel to the work table, and is arranged perpendicular to both the X-axis screw module and the Z-axis screw module.

[0020] As a further solution of the present invention: the first clamping and unloading assembly includes a module placement table, on which are disposed two sets of clamping plates movable along the Y-axis direction thereof, and above the module placement table and outside the two sets of clamping plates, a unloading plate movable along the X-axis direction thereof;

[0021] A driving mechanism capable of driving the module placement platform to move along its "X" axis is provided on the working table of the first frame assembly.

[0022] The present application sets a discharge plate and two sets of clamping plates, the positions of which are adjustable, and can clamp / relax the module in the center to make the positioning more accurate; and the discharge plate not only has the function of positioning the module, but also has the function of unloading.

[0023] As a further solution of the present invention: an explosion-proof box is provided at one end of the second rack assembly, wherein the second clamping and unloading assembly can push the lithium battery module to move into the corresponding explosion-proof box.

[0024] As a further solution of the present invention: the second frame assembly includes a work table B, wherein the work table B is connected to the vertical milling head through a multi-directional drive assembly B, and an infrared temperature sensor B is provided on one side of the vertical milling head, and the active surface of the vertical milling head and the infrared temperature sensor B faces the work table B.

[0025] The infrared temperature sensor B in this application can monitor the real-time temperature during the fine milling process of the battery cell pole. If a temperature abnormality occurs, the system explosion-proof mechanism will be activated, and the burning battery cell will be quickly pushed into the explosion-proof box under the action of two horizontal cylinders to avoid safety accidents.

[0026] As a further embodiment of the present invention, the second clamping and unloading assembly includes a cell placement table, the bottom of which is mounted on a work surface B via an "X"-axis drive mechanism B; the top of the cell placement table is provided with two sets of clamping plates B that can move along its "Y" axis;

[0027] A stripping plate B and a back baffle that can move along the "X" axis are provided above the battery cell placement table and outside the two sets of clamping plates B.

[0028] The vertical milling head of the present application can realize X / Y / Z axis movement. According to program control, the vertical milling head can perform fine milling and deburring on the surface of the battery cell pole.

[0029] The present invention also discloses a recycling method of a lithium battery non-destructive recycling device, comprising the following steps:

[0030] S1. Place the battery module on top of the first clamping and unloading assembly;

[0031] S2. Start the control switch of the battery cell separation equipment, the clamping plate clamps the battery module in the center, and uses the screw module 1 to move the battery module to the cutting station;

[0032] S3, CCD visual camera takes pictures of the battery module and captures the coordinate data of each rivet hole in the battery cell;

[0033] S4, laser ranging sensor measures the height of the battery module pole piece;

[0034] S5. The laser cuts the aluminum strip along the required path based on the measured height and rivet hole coordinates to separate adjacent cells.

[0035] If a fire occurs during the cutting process, proceed to steps S13 and S14: S13, the infrared temperature sensor detects abnormal temperature, and the screw module moves the battery module to the side of the explosion-proof box; S14, the clamping plate of the battery module is loosened, and two single-rod cylinders push the battery module into the explosion-proof box;

[0036] If the cutting process is working normally, proceed to step S6:

[0037] S6, screw module 1 moves the battery module to the initial position and manually separates the battery cells;

[0038] S7. Place the battery cells neatly above the second clamping and unloading assembly;

[0039] S8, start the control switch of the cell pole piece fine milling equipment, and clamp the left and right sides and the front and back sides of the cell at the same time;

[0040] S9, the cylinder controls the cell pressing plate to press the cell in the Z direction;

[0041] S10, transfer the battery cell to the fine milling station through the "X" axis drive mechanism;

[0042] S11, milling cutter finish mills the surface of the battery pole and removes burrs;

[0043] S12, take out the battery cell tray;

[0044] If the precision-milled battery cell catches fire, proceed to steps S15-S17: S15, the infrared temperature sensor B detects abnormal temperature, and the screw module 2 moves the battery cell to the side of the explosion-proof box; S16, the cylinder lowers the back baffle; S17, loosen the battery cell's clamping plate B and the battery cell pressure plate, and the two single-rod cylinders B push the battery cell into the explosion-proof box. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic structural diagram of a cell separation device according to an embodiment of the present invention;

[0046] Figure 2 This is a schematic structural diagram of a first rack assembly according to an embodiment of the present invention;

[0047] Figure 3 for Figure 2 A partial enlarged view of

[0048] Figure 4 This is a schematic structural diagram of a first clamping and unloading assembly according to an embodiment of the present invention;

[0049] Figure 5 This is a schematic structural diagram of a cell electrode fine milling device according to an embodiment of the present invention;

[0050] Figure 6 This is a schematic structural diagram of a second rack assembly according to an embodiment of the present invention;

[0051] Figure 7 This is a schematic structural diagram of a second clamping and unloading assembly according to an embodiment of the present invention;

[0052] Figure 8 This is a schematic diagram of the “#”-shaped cutting path of the battery module according to an embodiment of the present invention;

[0053] Figure 9 This is a schematic structural diagram of a single battery cell according to an embodiment of the present invention;

[0054] Figure 10 This is a flow chart of lossless recycling of lithium batteries according to an embodiment of the present invention;

[0055] Description of reference numerals:

[0056] 100. First rack assembly; 101. Work surface; 102. Connecting bracket; 103. X-axis screw module; 104. Y-axis screw module; 105. Z-axis screw module; 106. CCD vision camera; 107. Infrared temperature sensor; 108. Laser ranging sensor; 109. Laser;

[0057] 200, first clamping and unloading assembly; 201, screw module 1; 202, guide rail; 203, module placement table; 204, left and right rotating screw module; 205, clamping plate; 206, unloading plate; 207, single-rod cylinder;

[0058] 300, second frame assembly; 301, work surface B; 302, connecting bracket B; 303, X-axis screw module B; 304, Y-axis screw module B; 305, Z-axis screw module B; 306, infrared temperature sensor B; 307, vertical milling head;

[0059] 400, second clamping and unloading assembly; 401, screw module 2; 402, guide rail B; 403, battery cell placement table; 404, left and right rotating screw module B; 405, clamping plate B; 406, unloading plate B; 407, single-rod cylinder B; 408, back baffle; 409, cylinder 2; 410, cylinder 1; 411, battery cell pressure plate;

[0060] 3. Explosion-proof box;

[0061] 4. Battery module;

[0062] 5. Aluminum busbar;

[0063] 6. Battery cell. DETAILED DESCRIPTION

[0064] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0065] A lithium battery non-destructive recycling device, including a cell separation device (refer to Figure 1 ) and the cell pole piece finishing milling equipment installed in the subsequent process (such as Figure 5 ), the battery module 4 cover is cut by the battery cell separation equipment, the cover is separated from the battery, and the aluminum bars 5 connecting the adjacent battery cells are cut, and then the separated aluminum bars 5 remaining above the battery cell poles are processed by fine milling, instead of fine milling the welding points separately. The above setting does not damage the surface of the positive and negative poles of the battery cell, facilitates the secondary use of the battery cell, solves the problem of lossless recycling of the battery cell, and greatly improves the efficiency and quality of battery cell recycling.

[0066] Reference Figure 1 The cell separation equipment includes a first frame assembly 100 and a first clamping and unloading assembly 200 installed thereon. The first frame assembly 100 can separate the cell cover when the first clamping and unloading assembly 200 clamps the lithium battery module 4 and moves. An explosion-proof box 3 is provided at one end of the first frame assembly 100, wherein the first clamping and unloading assembly 200 can push the lithium battery module 4 to move into the explosion-proof box 3.

[0067] Reference Figure 2 and Figure 3 The first frame assembly 100 includes a work table 101, on which an X-axis screw module 103, a Y-axis screw module 104 and a Z-axis screw module 105 are provided, wherein the X-axis screw module 103 is arranged along the "X" axis direction of the work table 101; both ends of the Y-axis screw module 104 are connected to the X-axis screw module 103 through a connecting bracket 102, and the Z-axis screw module 105 is installed on the Y-axis screw module 104.

[0068] The CCD vision camera 106, infrared temperature sensor 107, laser ranging sensor 108 and laser 109 are all installed on the Z-axis screw module 105; CCD vision camera 106, infrared temperature sensor 107 and laser ranging sensor 108 are provided on both sides of the laser 109, wherein the active surfaces of the CCD vision camera 106, infrared temperature sensor 107, laser ranging sensor 108 and laser 109 face the work surface 101.

[0069] Specifically, slide rails are provided on both sides of the work table 101, and the two connecting brackets 102 can slide on the slide rails, which serve as a limiter. When in use, the connecting bracket 102, the Y-axis screw module 104, the Z-axis screw module 105 and the structures thereon can be adjusted by controlling the X-axis screw module 103 to simultaneously realize movement in the X-axis direction; and the Z-axis screw module 105 and the structure thereon can be adjusted by controlling the Y-axis screw module 104 to simultaneously realize movement in the Y-axis direction; and the Z-axis screw module 105 can be controlled to adjust the CCD vision camera 106, infrared temperature sensor 107, laser ranging sensor 108 and laser 109 and other structures arranged thereon to realize movement in the Z-axis direction.

[0070] Furthermore, the Y-axis screw module 104 is arranged parallel to the work table 101 , and is arranged perpendicular to both the X-axis screw module 103 and the Z-axis screw module 105 .

[0071] Reference Figure 4 The first clamping and unloading assembly 200 includes a screw module 201, a guide rail 202, a module placement platform 203, a left-right rotating screw module 204, a clamping plate 205, a unloading plate 206, and a single-rod cylinder 207. The module placement platform 203 is provided with two sets of clamping plates 205 that can move along its "Y" axis. The left-right rotating screw module 204 is installed below the module placement platform 203 for controlling the relative or opposite movement of the two sets of clamping plates 205. When the two sets of clamping plates 205 move relative to each other, they are used to clamp the battery module 4, and when they move in opposite directions, they are used to release the battery module 4.

[0072] A stripping plate 206 that can move along the "X" axis is provided above the module placement table 203 and outside the two groups of clamping plates 205. The initial position of the stripping plate 206 is located at the end of the two groups of clamping plates 205, and does not affect the relative or opposite movement of the two groups of clamping plates 205; slots are provided on the two ends of the stripping plate 206, which can just allow the two groups of clamping plates 205 to pass through; single-rod cylinders 207 are also installed at both ends of the stripping plate 206, and the single-rod cylinders 207 can be used to control the stripping plate 206 to move along the "X" axis of the module placement table 203, and control the single-rod cylinder 207 to push the battery module 4 between the two groups of clamping plates 205 out and push it into the explosion-proof box 3.

[0073] A screw module 201 capable of driving the module placement platform 203 to move along its "X" axis direction is provided on the work table 101 of the first frame assembly 100, and guide rails 202 are also installed on the work table 101 and on both sides of the screw module 201; sliders are provided at the bottom of both sides of the module placement platform 20, and the sliders can be slidably installed on the corresponding guide rails 202.

[0074] Reference Figure 5 The battery cell electrode finishing milling equipment includes a second frame assembly 300 and a second clamping and unloading assembly 400 mounted thereon. The second frame assembly 300 can perform finishing milling while the second clamping and unloading assembly 400 grips and moves the battery cells. An explosion-proof box is also installed at one end of the second frame assembly 300. In the event of a battery cell fire, the second clamping and unloading assembly 400 can push the lithium battery module 4 into the corresponding explosion-proof box.

[0075] Reference Figure 6 The second frame assembly 300 includes a work table B301, on which an X-axis screw module B303, a Y-axis screw module B304, and a Z-axis screw module B305 are set. The positions of the vertical milling head 307 and the infrared temperature sensor B306 are adjusted by the X-axis screw module B303, the Y-axis screw module B304, and the Z-axis screw module B305.

[0076] The X-axis screw module B303 is installed at the bottom of the work table B301 in the "X" axis direction, the two ends of the Y-axis screw module B304 are connected to the X-axis screw module B303 through the connecting bracket B302, and the Z-axis screw module B305 is installed on the Y-axis screw module B304.

[0077] The Z-axis screw module B305 is provided with a vertical milling head 307 , and an infrared temperature sensor B306 is provided on one side of the vertical milling head 307 . The working surfaces of the vertical milling head 307 and the infrared temperature sensor B306 face the work table B301 .

[0078] Specifically, slide rails are provided on both sides of the work table B301, and the two connecting brackets B302 can slide on the slide rails, which serve as a limiter; when in use, by controlling the X-axis screw module B303, the connecting bracket B302, the Y-axis screw module B304, the Z-axis screw module B305 and the structures thereon can be adjusted to simultaneously realize movement in the X-axis direction; and by controlling the Y-axis screw module B304, the Z-axis screw module B305 and the structure thereon can be adjusted to simultaneously realize movement in the Y-axis direction; and by controlling the Z-axis screw module B305, the structures such as the vertical milling head 307 and the infrared temperature sensor B306 arranged thereon can be adjusted to realize movement in the Z-axis direction.

[0079] Reference Figure 7 The second clamping and unloading assembly 400 includes a screw module 2 401, a guide rail B402, a battery cell placement table 403, a left and right rotating screw module B404, a clamping plate B405, a unloading plate B406, a single-rod cylinder B407, a back baffle 408, a cylinder 2 409, a cylinder 1 410 and a battery cell pressure plate 411. The bottom of the battery cell placement table 403 is provided with a screw module 2 401, and the bottom of the screw module 2 401 is installed on the work table B301. Guide rails B402 are provided on the top of the work table B301 and on both sides of the screw module 2 401. Sliders are provided on both sides of the bottom of the battery cell placement table 403, and the sliders can be slidably installed on the corresponding guide rails B402, and the sliders can slide along the guide rails B402.

[0080] The top of the battery cell placement platform 403 is provided with two groups of clamping plates B405 that can move along its "Y" axis direction. The left and right rotating screw modules B404 are set below the battery cell placement platform 403. The left and right rotating screw modules B404 can drive the two groups of clamping plates B405 to move relative or oppositely. The two groups of clamping plates B405 are used to clamp the battery cells when they move relative to each other, and are used to loosen the battery cells when they move oppositely.

[0081] A stripping plate B406 that can move along the "X" axis is provided above the battery cell placement table 403 and outside the two groups of clamping plates B405. The initial position of the stripping plate B406 is located at the end of the two groups of clamping plates B405 and does not affect the relative or opposite movement of the two groups of clamping plates B405; slots are provided on the two ends of the stripping plate B406, which can just allow the two groups of clamping plates B405 to pass through; single-rod cylinders B407 are also installed at both ends of the stripping plate B406, and the single-rod cylinder B407 can be used to control the stripping plate B406 to move along the "X" axis of the battery cell placement table 403, and control the single-rod cylinder B407 to push the battery cells between the two groups of clamping plates B405 out and into the explosion-proof box 3.

[0082] A back baffle 408 is provided above the battery cell placement table 403 and at the back of the two sets of clamping plates B405. The back direction is the direction away from the explosion-proof box 3. The back baffle 408 is used to position the rear side of the battery cell. The bottom of the back baffle 408 is installed to one side of the battery cell placement table 403 through cylinder 2 409; a battery cell pressure plate 411 is provided on the top of the two sets of clamping plates B405, and the bottom of the battery cell pressure plate 411 is connected to the two ends of the unloading plate B406 through cylinder 1 410.

[0083] The specific operating principles of this application are as follows:

[0084] The cell separation equipment includes a first rack assembly 100, a first clamping and unloading assembly 200, and an explosion-proof box 3. The battery module 4 to be separated is placed on the module placement table 203, with one side placed against the unloading plate 206. The cell separation equipment switch is turned on, and the screw module 204 rotates left and right to drive the clamping plate 205 to symmetrically clamp the battery module 4. The screw module 1 201 and the guide rail 202 drive the battery module 4 to the cutting station. The CCD visual camera 106 takes a picture of the battery module 4 and captures the battery cell rivet hole data.

[0085] The laser ranging sensor 108 measures the height data of the module pole piece. The laser 109 uses the X-axis screw module 103, the Y-axis screw module 104, and the Z-axis screw module 105 to move appropriately according to the measured data, and starts to perform a "#"-shaped path cutting on the aluminum row 5 cover of the battery module 4, cutting the aluminum row 5 connecting the adjacent battery cells. After cutting the aluminum row cover, the adjacent battery cells can be separated to achieve the effect of non-destructive disassembly; during the laser cutting process, the infrared temperature sensor 107 can monitor the temperature data in real time. If a battery cell catches fire, the screw module 201 moves the fire module to the side of the explosion-proof box 3, and the left and right rotating screw module 204 drives the clamping plate 205 to loosen the battery module 4; the unloading plate 206 pushes the fire module into the explosion-proof box under the action of the single-rod cylinder 207.

[0086] The cell pole piece fine milling equipment includes a second frame assembly 300, a second clamping and unloading assembly 400, and an explosion-proof box 3. The explosion-proof box can be added separately, or the explosion-proof box of the previous process can be used; the separated cells are neatly placed on the cell placement table 403, and the cylinder 2 409 controls the back baffle 408 to rise. The cells are placed against the back baffle 408, and the cell pole piece fine milling equipment switch is turned on. The single-rod cylinder B407 drives the unloading plate B406 to move, and the left and right rotating screw module B404 drives the clamping plate B405 to clamp the four sides of the cell; the cylinder 1 410 drives the cell pressing plate 411 to press the upper surface of the cell to achieve precise positioning and pressing of the cell, eliminate the gap between the cells, and improve the processing accuracy;

[0087] The vertical milling head 307 is controlled by the CNC program to perform overall fine milling and deburring of the aluminum row 5 on the upper surface of the battery cell pole, thereby achieving the effect of lossless battery cell recycling. During the fine milling process, the infrared temperature sensor B306 can monitor the temperature data in real time. If a battery cell catches fire, the screw module 2 401 will quickly move the fire module to the side of the explosion-proof box, and the screw module B404 will rotate left and right to drive the clamping plate B405 to release the battery module 4. The cylinder 2 409 controls the lowering of the back baffle 408. Under the action of the single-rod cylinder B407, the unloading plate B406 pushes the fire module into the explosion-proof box.

[0088] The recycling method of the lithium battery non-destructive recycling device of the present application comprises the following steps:

[0089] S1. Place the battery module 4 on top of the first clamping and unloading assembly 200;

[0090] S2. Start the control switch of the cell separation equipment, the clamping plate 205 clamps the battery module 4 in the center, and uses the screw module 1 201 to move the battery module 4 to the cutting station;

[0091] S3, the CCD visual camera 106 takes a picture of the battery module 4 and captures the coordinate data of each rivet hole of the battery cell;

[0092] S4, the laser ranging sensor 108 measures the height of the battery module 4 pole piece;

[0093] S5, the laser 109 performs the required path cutting according to the measured height and rivet hole coordinates;

[0094] If a fire occurs during the cutting process, proceed to steps S13 and S14: S13, the infrared temperature sensor 107 detects abnormal temperature, and the screw module 1 201 moves the battery module 4 to the side of the explosion-proof box 3; S14, the clamping plate 205 of the battery module 4 is released, and the two single-rod cylinders 207 push the battery module 4 into the explosion-proof box 3;

[0095] If the cutting process is working normally, proceed to step S6:

[0096] S6, the screw module 1 201 moves the battery module 4 to the initial position and manually separates the battery cell 6;

[0097] S7, neatly placing the battery cells above the second clamping and unloading assembly 400;

[0098] S8, start the control switch of the cell pole piece fine milling equipment, and clamp the left and right sides and the front and back sides of the cell 6 at the same time;

[0099] S9, the cylinder controls the cell pressing plate 411 to press the cell 6 in the Z direction;

[0100] S10, the battery cell 6 is transferred to the fine milling station through the screw module 2 401;

[0101] S11, the milling cutter finely mills the aluminum row 5 on the surface of the battery cell pole and removes burrs;

[0102] S12, take out the battery cell 6 and place it on a plate;

[0103] If the precision-milled battery cell catches fire, proceed to steps S15-S17: S15, the infrared temperature sensor B306 detects temperature abnormality, and the screw module 2 401 moves the battery cell to the side of the explosion-proof box; S16, the cylinder lowers the back baffle 408; S17, loosen the battery cell clamping plate B405 and the battery cell pressure plate 411, and the two single-rod cylinders B407 push the battery cell into the explosion-proof box.

[0104] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A lithium battery lossless recycling device, characterized in that: Including battery cell separation equipment and battery cell pole piece finishing milling equipment installed in the subsequent process; The battery cell separation device comprises a first frame assembly (100) and a first clamping and unloading assembly (200) mounted thereon, wherein the first frame assembly (100) is capable of separating the battery cell cover plates when the first clamping and unloading assembly (200) clamps the lithium battery module and moves. The battery cell pole piece fine milling equipment comprises a second frame assembly (300) and a second clamping and unloading assembly (400) mounted thereon. The second frame assembly (300) can perform fine milling when the second clamping and unloading assembly (400) clamps the battery cell and moves.

2. The lithium battery non-destructive recycling device according to claim 1, characterized in that: An explosion-proof box (3) is provided at one end of the first frame assembly (100), wherein the first clamping and unloading assembly (200) is capable of pushing the lithium battery module to move into the explosion-proof box (3).

3. The lithium battery non-destructive recycling device according to claim 1, characterized in that: The first frame assembly (100) includes a work surface (101), which is connected to a laser (109) via a multi-directional drive assembly. A CCD visual camera (106), an infrared temperature sensor (107), and a laser distance sensor (108) are provided on both sides of the laser (109), wherein the active surfaces of the CCD visual camera (106), the infrared temperature sensor (107), the laser distance sensor (108), and the laser (109) face the work surface (101).

4. The non-destructive lithium battery recycling device according to claim 3, characterized in that: The multi-directional drive assembly includes an X-axis screw module (103), a Y-axis screw module (104), and a Z-axis screw module (105), wherein the X-axis screw module (103) is arranged along the "X" axis direction of the work table (101); The two ends of the Y-axis screw module (104) are connected to the X-axis screw module (103) through a connecting bracket (102), and the Z-axis screw module (105) is installed on the Y-axis screw module (104); The CCD visual camera (106), infrared temperature sensor (107), laser distance sensor (108) and laser (109) are all mounted on the Z-axis screw module (105).

5. The non-destructive lithium battery recycling device according to claim 4, characterized in that: The Y-axis screw module (104) is arranged parallel to the work table (101), and is arranged perpendicular to both the X-axis screw module (103) and the Z-axis screw module (105).

6. The non-destructive lithium battery recycling device according to claim 1, characterized in that: The first clamping and unloading assembly (200) includes a module placement platform (203), on which two groups of clamping plates (205) capable of moving along the "Y" axis are provided, and above the module placement platform (203) and outside the two groups of clamping plates (205), a unloading plate (206) capable of moving along the "X" axis is provided; A driving mechanism capable of driving the module placement platform (203) to move along its "X" axis direction is provided on the working table (101) of the first frame assembly (100).

7. The non-destructive lithium battery recycling device according to claim 1, characterized in that: An explosion-proof box is provided at one end of the second frame assembly (300), wherein the second clamping and unloading assembly (400) is capable of pushing the lithium battery module to move into the corresponding explosion-proof box.

8. The non-destructive lithium battery recycling device according to claim 1, characterized in that: The second frame assembly (300) includes a work surface B (301), wherein the work surface B (301) is connected to the vertical milling head (307) through a multi-directional drive assembly B, an infrared temperature sensor B (306) is provided on one side of the vertical milling head (307), and the action surfaces of the vertical milling head (307) and the infrared temperature sensor B (306) face the work surface B (301).

9. The non-destructive lithium battery recycling device according to claim 8, characterized in that: The second clamping and unloading assembly (400) includes a cell placement platform (403), the bottom of which is mounted on a work surface B (301) via an "X" axis driving mechanism B; the top of the cell placement platform (403) is provided with two groups of clamping plates B (405) that can move along its "Y" axis. A stripping plate B (406) and a back baffle (408) that can move along the "X" axis are provided above the battery cell placement platform (403) and outside the two sets of clamping plates B (405).

10. A recycling method using the non-destructive recycling device for lithium batteries according to any one of claims 1 to 9, characterized in that: The steps include: S1. Place the battery module on top of the first clamping and unloading assembly; S2. Start the control switch of the battery cell separation equipment, the first clamping and unloading assembly clamps the battery module, and moves the battery module to the cutting station; S3. During this process, the coordinate data of each rivet hole of the battery cell is captured and the height of the battery module electrode is measured; S4. Cut the required path according to the measured height and rivet hole coordinates; If a fire occurs during the cutting process, the first clamping and unloading assembly will move the battery module to the explosion-proof box; If the cutting process works normally, move the battery module to the initial position and manually separate the battery cells; S5, then neatly place the separated cells above the second clamping and unloading assembly; S6. Start the control switch of the cell pole piece fine milling equipment, and the left and right sides, front and back sides, and top of the cell are clamped at the same time; S7, the second clamping and unloading assembly moves the battery cell to the fine milling station, and the milling cutter fine mills the surface of the battery cell pole and removes burrs; then the battery cell pendulum plate is removed; If the precision-milled battery cell catches fire, the second clamping and unloading assembly will move the battery cell to an explosion-proof box.

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