Lithium battery electrolyte recovery device

Abstract

The utility model discloses a lithium battery electrolyte recovery device relates to lithium battery recovery technical field, include: cutting edge device for cutting open the edge of battery, fixed outer tube has outer tube inner chamber and outer tube opening, rotate inner tube is located fixed outer tube, rotate inner tube is connected with rotating electrical machine, the fixed groove is set up on rotate inner tube lateral wall, the battery can be inserted into the fixed groove, be provided with battery fixing device on rotate inner tube, battery fixing device can fix the battery of fixed groove, first through cutting edge device cutting open the edge of battery, then battery is moved into outer tube inner chamber from the outer tube opening of fixed outer tube and is inserted into the fixed groove on rotate inner tube, then battery fixing device holds the battery, then rotating electrical machine drives rotate inner tube high -speed rotation activity, like this can efficiently complete the separation recovery work of electrolyte.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery recycling technology, and in particular to a lithium battery electrolyte recycling device. Background Technology

[0002] With the promotion and application of new energy technologies, lithium-ion batteries, as the mainstream electrochemical energy storage device, are being used in increasing quantities, making lithium battery recycling increasingly important. Among these processes, the recycling of lithium battery electrolyte has become a crucial step in lithium battery recycling.

[0003] The main organic solvents in electrolytes are mostly flammable liquids, and lithium salts (such as lithium hexafluorophosphate) readily decompose and volatilize upon contact with water or moisture, producing highly toxic and corrosive gases such as hydrogen fluoride (HF). This poses significant safety risks to electrolyte recycling. Existing commonly used recycling methods, such as whole-cell crushing recycling, explosion-proof valve-perforated inverted storage recycling, and needle-puncture perforation recycling, are insufficient in addressing electrolyte risks. In particular, damaging the battery casing can easily generate sparks that ignite the electrolyte, and pouring out the electrolyte can lead to the inhalation of moisture, causing further evaporation and other accidents. Therefore, lithium battery recycling remains inherently risky. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a lithium battery electrolyte recovery device.

[0005] A lithium battery electrolyte recycling device according to an embodiment of the present invention includes: a trimming device for trimming the edges of the battery; a fixed outer cylinder having an inner cavity and an opening; and a rotating inner cylinder located inside the fixed outer cylinder. The rotating inner cylinder is connected to a rotating motor, and a fixing groove is provided on the side wall of the rotating inner cylinder. The battery can pass through the opening of the outer cylinder and be inserted into the fixing groove. A battery fixing device is provided on the rotating inner cylinder, and the battery fixing device can fix the battery located in the fixing groove.

[0006] According to some embodiments of this utility model, an external output opening and an external input opening are respectively provided on the left and right sides of the outer wall of the fixed outer cylinder, and the external output opening and the external input opening serve as the outer cylinder opening of the fixed outer cylinder; an output station is provided on the left side of the fixed outer cylinder, and an input station is provided on the right side of the fixed outer cylinder. A conveying device is provided on both the output station and the input station, and the conveying device is capable of conveying the battery; a station frame, a station limiting device, and the trimming device are provided on the input station, and the station limiting device is capable of fixing the battery on the station frame.

[0007] According to some embodiments of the present invention, the upper side of the workstation frame has a battery placement position, the lower side of the workstation frame has a trimming guide surface, a trimming hole is provided between the battery placement position and the trimming guide surface, the trimming hole can hold the edge to be trimmed on the battery; the trimming device includes a trimming cylinder and a trimming knife, the trimming cylinder can drive the trimming knife to reciprocate along the trimming guide surface.

[0008] According to some embodiments of the present invention, a limiting vertical plate is provided on the upper side of the workstation frame, and the limiting vertical plate has a limiting vertical surface; the workstation limiting device includes a limiting cylinder and a limiting top block, the limiting cylinder can drive the limiting top block to reciprocate, and the limiting top block and the limiting vertical surface can clamp the battery.

[0009] According to some embodiments of the present invention, the rotary motor has a rotating shaft on its lower side, the rotating shaft is connected to the rotating inner cylinder, and a rotating support frame is connected to the outer wall of the rotary motor; an outer cylinder inner support frame is provided on the upper part of the inner cavity of the fixed outer cylinder, and the rotating support frame is connected to the outer cylinder inner support frame.

[0010] According to some embodiments of the present invention, the rotating inner cylinder includes an inner cylinder body, an inner cylinder support column is provided in the middle of the inner bottom wall of the inner cylinder body, the inner cylinder support column is connected to the rotating shaft of the rotating motor, so that the rotating motor can drive the inner cylinder body to rotate; a battery receiving part is provided between the outer wall of the inner cylinder support column and the inner wall of the inner cylinder body, and the fixing groove is located in the battery receiving part.

[0011] According to some embodiments of the present invention, the battery fixing device includes a longitudinal cylinder and a transverse cylinder. The longitudinal cylinder is provided with a longitudinal top block, and the transverse cylinder is provided with a transverse top block. The longitudinal cylinder is located on the upper side of the battery receiving part, and the transverse cylinder is located on the outer wall of the battery receiving part. The longitudinal cylinder can drive the longitudinal top block to press against the upper side of the battery, and the transverse cylinder can drive the transverse top block to press against the outer wall of the battery.

[0012] According to some embodiments of this utility model, the battery fixing device includes a corner cylinder and a stop bar. The corner cylinder is located outside the battery receiving part, and the corner cylinder can drive the stop bar to rotate and reciprocate. A stop bar receiving hole is provided on the outer wall of the inner cylinder. When the stop bar is in the retracted state, the stop bar is driven to rotate by the corner cylinder and retract into the stop bar receiving hole. When the stop bar is in the extended state, the stop bar is driven to extend out of the stop bar receiving hole by the corner cylinder and rotate to lock the battery in the fixing groove.

[0013] According to some embodiments of the present invention, the lower side wall of the fixed outer cylinder has an inverted conical surface, and a liquid pump is connected to the lower end of the inverted conical surface.

[0014] According to some embodiments of this utility model, the handling device includes a horizontal handling guide rail, a horizontal handling frame, a vertical handling guide rail, a vertical handling frame, a gripper rotating part, and a handling gripper; the horizontal handling guide rail can guide the horizontal handling frame to move horizontally, the vertical handling guide rail is located on the horizontal handling frame, and the vertical handling guide rail can guide the vertical handling frame to move up and down; the gripper rotating part is located on the vertical handling frame, the gripper rotating part can rotate, the handling gripper is located on the gripper rotating part, and the handling gripper can clamp the battery.

[0015] The lithium battery electrolyte recovery device according to the embodiments of this utility model has at least the following technical effects: 1. First, the edges of the battery are cut open by the edge-cutting device. Then, the battery is moved from the opening of the outer cylinder of the fixed outer cylinder into the inner cavity of the outer cylinder and inserted into the fixed groove on the rotating inner cylinder. Then, the battery fixing device fixes the battery. Then, the rotating motor drives the rotating inner cylinder to rotate at high speed. In this way, the separation and recycling of electrolyte can be completed efficiently even when only a small cut is made in the battery. 2. The cut in the battery does not need to be large, nor does it need to damage the battery casing extensively. This allows the electrolyte to be recycled without compromising the rigidity of the battery casing, improving the safety of the battery casing cutting operation and avoiding risks such as the battery not deforming during clamping and cutting, or sparks igniting electrolyte overflow during battery cutting. 3. The battery only needs to be trimmed at the edges. During the trimming process, only a small amount of electrolyte can flow out from the edge cut. When the battery is stationary, there is basically no electrolyte seeping out and sticking to the battery casing. It can only be thrown out by the centrifugal force of the rotating inner cylinder. This not only has extremely low environmental pollution, but also reduces the requirements for back-end processing equipment. 4. The method of recovering electrolyte after cutting off the edges of the battery reduces the battery powder generated during battery cutting, thus improving the purity of the recovered electrolyte.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a perspective view of the lithium battery electrolyte recovery device of this utility model; Figure 2 This is a three-dimensional sectional view of the fixed outer cylinder of this utility model; Figure 3 This is a three-dimensional sectional view of the rotating inner cylinder of this utility model; Figure 4 This is a schematic diagram of the battery fixing device of this utility model when fixing the battery; Figure 5 This is a perspective view of the input station of this utility model; Figure 6 This is an exploded view of the input station of this utility model; Figure 7 This is a perspective view of the conveying device of this utility model.

[0018] Figure label: Edge trimming device 100, edge trimming cylinder 110, edge trimming blade 120; fixed outer cylinder 200, external output opening 201, external input opening 202, outer cylinder inner cavity 203, outer cylinder inner support frame 210, inverted conical surface 220, liquid pump 230, column 240, base frame 250, end cap 260; rotating inner cylinder 300, rotary motor 310, absolute encoder 311, battery housing 320, fixing groove 321, inner cylinder body 330, stop bar receiving hole 331, inner cylinder body support column 340, rotating support frame 350; battery fixing device 400, longitudinal cylinder 410, longitudinal top block 411, transverse cylinder 420, transverse top... Block 421, corner cylinder 430, stop bar 431; output station 510, input station 520, battery conveyor line 521, edge cutting conveyor line 522; conveying device 600, conveying horizontal guide rail 610, conveying horizontal frame 620, conveying vertical guide rail 630, conveying vertical frame 640, gripper rotating part 650, conveying gripper 660; station frame 700, battery placement position 710, edge cutting guide surface 720, edge cutting hole 730, limiting vertical plate 740, limiting vertical surface 741, air-proof cylinder 742; station limiting device 800, limiting cylinder 810, limiting top block 820; battery 900, edge 910. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "multiple" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] The following is for reference. Figure 1 and Figure 2 This invention describes a lithium battery electrolyte recovery device according to an embodiment of the present invention.

[0024] like Figure 1 and Figure 2 As shown, the lithium battery electrolyte recycling device according to an embodiment of the present invention includes a trimming device 100, a fixed outer cylinder 200, and a rotating inner cylinder 300.

[0025] The trimming device 100 is used to cut the edges 910 of the battery 900; the fixed outer cylinder 200 has an inner cavity 203 and an outer cylinder opening; the rotating inner cylinder 300 is located inside the fixed outer cylinder 200, and the rotating inner cylinder 300 is connected to a rotating motor 310, see reference. Figure 3 , Figure 4 A fixing groove 321 is provided on the side wall of the rotating inner cylinder 300. The battery 900 can be inserted into the fixing groove 321 through the opening of the outer cylinder. A battery fixing device 400 is provided on the rotating inner cylinder 300. The battery fixing device 400 can fix the battery 900 located in the fixing groove 321.

[0026] For example, such as Figure 1 and Figure 2 As shown, the trimming device 100 is used to cut open the edges 910 of the battery 900, allowing the electrolyte inside the battery 900 to flow out from the cut. The fixed outer cylinder 200 has an inner cavity 203 and an outer cylinder opening, and the fixed outer cylinder 200 remains relatively stationary during operation. The rotating inner cylinder 300 is located inside the fixed outer cylinder 200, that is, the rotating inner cylinder 300 operates within the inner cavity 203 of the outer cylinder. The rotating inner cylinder 300 is connected to a rotary motor 310, which drives the rotating inner cylinder 300 to rotate. (Refer to...) Figure 3 , Figure 4A fixing groove 321 is provided on the side wall of the rotating inner cylinder 300. The battery 900 can pass through the opening of the outer cylinder of the fixing outer cylinder 200 and be inserted into the fixing groove 321, that is, the battery 900 can rotate together with the rotating inner cylinder 300 in the fixing groove 321. A battery fixing device 400 is provided on the rotating inner cylinder 300. When the battery 900 is located in the fixing groove 321, the battery fixing device 400 can fix the battery 900 and ensure that the battery 900 will not be thrown out when rotating together with the rotating inner cylinder 300.

[0027] In practical work, refer to Figure 1 First, the edge 910 of the battery 900 is cut open by the edge trimming device 100, creating a narrow, elongated slit in the battery 900's casing. This cutting method causes less damage to the battery casing, thus avoiding the risk of sparks igniting the electrolyte if the casing is damaged, without compromising its rigidity. However, this narrow, elongated slit in the battery 900 alone is insufficient to directly pour out the electrolyte from inside the battery 900.

[0028] Reference Figure 2 , Figure 3 The cut battery 900 is moved from the outer cylinder opening of the fixed outer cylinder 200 into the inner cavity 203 of the outer cylinder by manual or mechanical handling, and then inserted into the fixing groove 321 on the rotating inner cylinder 300. Then the battery fixing device 400 fixes the battery 900 in the fixing groove 321.

[0029] Then, the rotary motor 310 drives the inner cylinder 300 to rotate at high speed, causing the battery 900 in the fixed tank 321 to rotate at high speed as well. In this way, the electrolyte in the battery 900 is thrown out from the cut of the battery 900 under the action of centrifugal force and collected in the inner cavity 203 of the outer cylinder. This completes the separation of the electrolyte from the battery 900 and realizes the electrolyte recycling.

[0030] The above recycling method allows the cut in the battery 900 to be smaller and avoids extensive damage to the battery 900 casing. This allows the electrolyte to be recycled without compromising the rigidity of the battery 900 casing, improving the safety of the battery 900 casing cutting operation and avoiding risks such as the battery 900 not deforming during clamping and cutting, or sparks igniting electrolyte overflow during the cutting process.

[0031] Moreover, the battery 900 only requires cutting the edge 910. During the cutting process, only a small amount of electrolyte can flow out from the edge cut, meaning that only a small amount of electrolyte adheres to the casing of the battery 900. This not only results in extremely low environmental pollution but also reduces the requirements for back-end processing equipment.

[0032] The method of recovering electrolyte after cutting the edges 910 of the battery 900 described above reduces the battery powder generated during the cutting of the battery 900, thereby improving the purity of the recovered electrolyte.

[0033] It is conceivable that the electrolyte accumulated in the inner cavity 203 of the outer cylinder can be removed at any time by a suction device, or by opening a drain port in the inner cavity 203 of the outer cylinder, or by manually or mechanically discharging the electrolyte after it has accumulated to a certain amount. All of the above methods fall within the scope of protection of this patent.

[0034] In practice, since the electrolyte has a certain degree of volatility and corrosiveness, the lithium battery electrolyte recovery device of this utility model embodiment is preferably operated in a shielded cover or shielded room. The shielded cover / shielded room is connected to an exhaust device, so that the small amount of volatile gas generated in the above process can be extracted.

[0035] In some embodiments of this utility model, an external output opening 201 and an external input opening 202 are respectively provided on the left and right sides of the outer wall of the fixed outer cylinder 200. The external output opening 201 and the external input opening 202 serve as the outer cylinder openings of the fixed outer cylinder 200. An output station 510 is provided on the left side of the fixed outer cylinder 200, and an input station 520 is provided on the right side of the fixed outer cylinder 200. A conveying device 600 is provided on both the output station 510 and the input station 520. The conveying device 600 can convey the battery 900. A station frame 700, a station limiting device 800, and a trimming device 100 are provided on the input station 520. The station limiting device 800 can fix the battery 900 on the station frame 700.

[0036] The fixed outer cylinder 200 has an external output opening 201 and an external input opening 202, which serve as the main outer cylinder opening structures and communicate with the inner cavity 203 of the outer cylinder. On the left side of the fixed outer cylinder 200, an output station 510 is specifically provided corresponding to the external output opening 201 for the output of the finished battery 900. On the right side of the fixed outer cylinder 200, an input station 520 is provided corresponding to the external input opening 202 for the input of the battery 900. Both stations are equipped with a conveying device 600, which, in conjunction with automated intelligent control, can efficiently complete the conveying operations of the battery 900 from the input station 520 through the external input opening 202 into the inner cavity 203 of the outer cylinder, and the battery 900 from the fixed outer cylinder 200 through the external output opening 201 to the output station 510.

[0037] At input station 520, a station frame 700 for supporting the battery 900, a station limiting device 800 for fixing the battery position, and a trimming device 100 for edge processing of the battery complete the trimming of the battery's edges 910. The station limiting device 800 uses a mechanical clamping method to firmly fix the battery 900 onto the station frame 700, ensuring the stability of subsequent processing. This automates and simplifies the entire battery trimming process.

[0038] It is conceivable that as long as the external output opening 201 and external input opening 202 on the fixed outer cylinder 200 are horizontally offset from the fixed groove 321 on the rotating inner cylinder 300, it can be ensured that the electrolyte in the battery 900 will not be thrown out of the fixed outer cylinder 200 from the external output opening 201 and external input opening 202 when it is thrown out by centrifugal force. In addition, door plates can also be installed on the external output opening 201 and external input opening 202 to ensure that the electrolyte will not be thrown out of the fixed outer cylinder 200 from the external output opening 201 and external input opening 202.

[0039] Because the cut in battery 900 is small, the electrolyte inside battery 900 is flung out under centrifugal force. The electrolyte adheres to the inner wall of the fixed outer cylinder 200, forming a ring-like electrolyte adhesion trajectory, which is usually lower than the horizontal height of the battery cut in battery 900 within the fixed tank 321. This trajectory can be determined through calculation or experimentation. Therefore, it is only necessary to raise the opening height of the external output opening 201 and external input opening 202 on the fixed outer cylinder 200. For example, if the highest point of the electrolyte adhesion trajectory is equivalent to 50cm above the bottom wall of the inner cavity of the fixed outer cylinder 200, then it is only necessary to ensure that the lowest point of the external output opening 201 and external input opening 202 is above 50cm above the bottom wall of the inner cavity of the fixed outer cylinder 200.

[0040] When it is necessary to insert the battery 900 into the fixing slot 321, the transport device 600 clamps the battery 900 and inserts it into the corresponding fixing slot 321 through the external input opening 202. For example, the battery 900 first enters the external input opening 202 horizontally, then descends to a suitable height, and then moves horizontally to insert into the fixing slot 321. Alternatively, the battery 900 passes through the external input opening 202 along a downward inclined path and is then inserted into the fixing slot 321, and so on. Similarly, when it is necessary to remove the battery 900, the transport device 600 extends into the external output opening 201, grabs the battery 900 from the corresponding fixing slot 321, and then removes it through the external output opening 201. This completes the battery transport operation.

[0041] Provided that the horizontal height of the lowest point of the external output opening 201 and the external input opening 202 is not higher than the highest point of the fixed groove 321, and the height difference between the lowest point of the external output opening 201 and the external input opening 202 and the highest point of the fixed groove 321 is not too large, the above battery handling operation can be guaranteed to proceed normally. The specific details depend on the size of the battery and the equipment, which will not be elaborated here.

[0042] Furthermore, the door panels on the external output opening 201 and external input opening 202 preferably employ automatic control devices to control their opening and closing. For example, the door panels can be connected to the fixed outer cylinder 200 using a hinge structure, and the flipping movement of the door panels can be controlled by a cylinder. Alternatively, the door panels can be connected to the fixed outer cylinder 200 using a slide rail structure, and the telescopic movement of the door panels can be controlled by a cylinder, and so on.

[0043] In some embodiments of this utility model, a battery conveyor line 521 is provided next to the input station 520, which is used to convey the battery 900 to the input station 520. An edge cutting conveyor line 522 is provided under the station frame 700, which is used to receive the cut edge 910 and transport the edge 910 away.

[0044] In some embodiments of this utility model, reference is made to Figure 5 , Figure 6 The workstation frame 700 has a battery placement position 710 on the upper side and a trimming guide surface 720 on the lower side. A trimming hole 730 is provided between the battery placement position 710 and the trimming guide surface 720. The trimming hole 730 can hold the edge 910 to be trimmed on the battery 900. The trimming device 100 includes a trimming cylinder 110 and a trimming knife 120. The trimming cylinder 110 can drive the trimming knife 120 to reciprocate along the trimming guide surface 720 to complete the trimming of the edge 910 of the battery 900.

[0045] In the actual cutting process, the battery 900 to be cut is first placed on the battery placement position 710 of the workstation frame 700, and the battery 900 is aligned so that the edge 910 to be cut on the battery 900 is engaged with the cutting hole 730, and the edge 910 to be cut protrudes from the cutting hole 730 onto the cutting guide surface 720. Then, the cutting cylinder 110 drives the cutting blade 120 to reciprocate along the cutting guide surface 720. Specifically, when the cutting cylinder 110 drives the cutting blade 120 to extend, the cutting blade 120 can cut out the edge 910 protruding from the cutting guide surface 720. Then, when the cutting cylinder 110 drives the cutting blade 120 to retract, the cutting blade 120 returns to its original position, exposing the cut edge of the battery 900. In this way, the cutting of the edge 910 of the battery 900 can be completed efficiently and accurately.

[0046] In some embodiments of this utility model, a limiting vertical plate 740 is provided on the upper side of the workstation frame 700, and the limiting vertical plate 740 has a limiting vertical surface 741; the workstation limiting device 800 includes a limiting cylinder 810 and a limiting top block 820, the limiting cylinder 810 can drive the limiting top block 820 to reciprocate, and the limiting top block 820 and the limiting vertical surface 741 can clamp the battery 900.

[0047] After the battery 900 to be cut is placed on the workstation frame 700, one side of the battery 900 is positioned against the limiting vertical surface 741 of the limiting vertical plate 740. Then, the limiting cylinder 810 drives the limiting top block 820 to extend, so that the limiting top block 820 and the limiting vertical surface 741 cooperate to clamp the battery 900. This conveniently and quickly completes the clamping and fixing of the battery 900, facilitating subsequent cutting. When the limiting cylinder 810 drives the limiting top block 820 to retract, the battery 900 is no longer clamped and can be moved away from the workstation.

[0048] In some embodiments of this utility model, a clearance cylinder 742 is provided on the upper side of the limiting vertical plate 740. The clearance cylinder 742 can facilitate manual or mechanical clamping of the battery 900 on the workstation frame 700, making it easier to transport the battery 900.

[0049] In some embodiments of this utility model, reference is made to Figure 2 , Figure 3 The rotary motor 310 has a rotating shaft on its lower side, which is connected to the rotating inner cylinder 300. A rotating support frame 350 is connected to the outer wall of the rotary motor 310. An inner support frame 210 is provided on the upper part of the inner cavity of the fixed outer cylinder 200, and the rotating support frame 350 is connected to the inner support frame 210. This ensures that the rotating inner cylinder 300 is sufficiently stable and reliable within the fixed outer cylinder 200, and also ensures the smoothness of the rotation process of the rotating inner cylinder 300.

[0050] In some specific embodiments of this utility model, the rotating shaft of the rotary motor 310 extends in the vertical direction, and the lower end of the rotating shaft is connected to the rotating inner cylinder 300.

[0051] In a further embodiment of this utility model, an absolute encoder 311 is provided on the rotary motor 310. The absolute encoder 311 serves as a device for measuring and recording the angular changes of the rotating inner cylinder 300, and is used to record the rotational position of the rotating inner cylinder 300, thereby achieving precise control of the rotational position of the rotating inner cylinder 300.

[0052] In some embodiments of this utility model, reference is made to Figure 3 , Figure 4The rotating inner cylinder 300 includes an inner cylinder body 330. An inner cylinder support column 340 is provided in the middle of the inner bottom wall of the inner cylinder body 330. The inner cylinder support column 340 is connected to the rotation shaft of the rotating motor 310, so that the rotating motor 310 can drive the inner cylinder body 330 to rotate. A battery receiving part 320 is provided between the outer side wall of the inner cylinder support column 340 and the inner side wall of the inner cylinder body 330. A fixing groove 321 is located in the battery receiving part 320.

[0053] The rotating inner cylinder 300 mainly consists of an inner cylinder body 330 as the rotating main body, which has an inner cavity. The inner cavity of the inner cylinder body 330 can accommodate the battery receiving part 320, which is specifically used to place the battery 900. The fixing groove 321 has sufficient depth in the battery receiving part 320 to ensure that the battery 900 can be securely fixed in the predetermined position.

[0054] The inner cylinder support column 340, located at the center of the inner bottom wall of the inner cylinder 330, is reliably connected to the rotating shaft of the rotary motor 310, ensuring sufficient stability when the inner cylinder 330 rotates at high speed.

[0055] The entire design ensures both the high-speed rotation of the inner cylinder 330 and the safe storage of the battery 900 on the inner cylinder 330.

[0056] In a further embodiment of the present invention, there are a plurality of battery receiving portions 320 between the outer side wall of the inner cylinder support column 340 and the inner side wall of the inner cylinder 330, and each battery receiving portion 320 is arranged in a ring around the inner cylinder support column 340.

[0057] In some embodiments of this utility model, the battery fixing device 400 includes a longitudinal cylinder 410 and a transverse cylinder 420. The longitudinal cylinder 410 is provided with a longitudinal top block 411, and the transverse cylinder 420 is provided with a transverse top block 421. The longitudinal cylinder 410 is located on the upper side of the battery receiving part 320, and the transverse cylinder 420 is located on the outer wall of the battery receiving part 320. The longitudinal cylinder 410 can drive the longitudinal top block 411 to press against the upper side of the battery 900, and the transverse cylinder 420 can drive the transverse top block 421 to press against the outer wall of the battery 900.

[0058] After the battery 900 is moved from the outside of the rotating inner cylinder 300 into the fixing groove 321, the longitudinal cylinder 410 drives the longitudinal top block 411 to extend into the fixing groove 321 and press against the upper side of the battery 900, and the transverse cylinder 420 drives the transverse top block 421 to extend into the fixing groove 321 and press against the outer side wall of the battery 900. In this way, the fixing of the battery 900 can be completed quickly.

[0059] In some specific embodiments of this utility model, the longitudinal top block 411 and the transverse top block 421 can be located inside or outside the fixing groove 321 when in the retracted state. When in the extended state, the longitudinal top block 411 and the transverse top block 421 are both located inside the fixing groove 321 to ensure that the battery 900 can be held in place.

[0060] In some embodiments of this utility model, the battery fixing device 400 includes a rotary cylinder 430 and a stop bar 431. The rotary cylinder 430 is located outside the battery receiving part 320, and the rotary cylinder 430 can drive the stop bar 431 to rotate and reciprocate. A stop bar receiving hole 331 is provided on the outer wall of the inner cylinder 330. When the stop bar 431 is in the retracted state, the stop bar 431 is driven to rotate by the rotary cylinder 430 and retract into the stop bar receiving hole 331. When the stop bar 431 is in the extended state, the stop bar 431 is driven to extend out of the stop bar receiving hole 331 by the rotary cylinder 430 and rotate to lock the battery 900 in the fixing groove 321.

[0061] The angle cylinder 430 can be driven by pneumatic or hydraulic pressure. When the angle cylinder 430 is working, the piston of the angle cylinder 430 can first complete the rotation stroke, that is, the stop rod 431 rotates with the piston, and then complete the clamping stroke, that is, the stop rod 431 moves linearly with the piston. In this way, the angle cylinder 430 can drive the stop rod 431 to rotate and reciprocate.

[0062] Reference Figure 3 When it is necessary to move the battery 900 into the fixing slot 321, the stop bar 431 is located in the stop bar receiving hole 331. In this way, the stop bar 431 will not extend out of the inner cylinder 330, nor will it block the fixing slot 321, thus avoiding obstructing the installation of the battery and allowing the battery 900 to be inserted into the fixing slot 321.

[0063] Reference Figure 4 When the battery 900 is inserted into the fixing slot 321, the stop rod 431 extends out of the stop rod receiving hole 331 and rotates to lock the battery 900 in the fixing slot 321. This can prevent the battery 900 from being thrown out when the inner cylinder 330 rotates at high speed, thus preventing damage to the battery 900.

[0064] In some embodiments of this utility model, reference is made to Figure 2 The lower side wall of the fixed outer cylinder 200 has an inverted conical surface 220, and a liquid pump 230 is connected to the lower end of the inverted conical surface 220. The separated electrolyte is collected at the position of the inverted conical surface 220 of the fixed outer cylinder 200 and is extracted by the liquid pump 230 for subsequent processing.

[0065] In a further embodiment of this utility model, a column 240 is connected to the outer wall of the fixed outer cylinder 200, and the column 240 serves as a support structure for the fixed outer cylinder 200. A base frame 250 is provided below the fixed outer cylinder 200, and the base frame 250 is connected to the column 240. The liquid pump 230 is connected to the base frame 250, making the fixed outer cylinder 200 sufficiently stable and reliable.

[0066] In some embodiments of this utility model, the fixed outer cylinder 200 has an upper opening, and the upper opening of the fixed outer cylinder 200 is covered by an end cap 260.

[0067] In some embodiments of this utility model, the fixed outer cylinder 200 is connected to an exhaust gas treatment device to promptly remove the exhaust gas inside the fixed outer cylinder 20.

[0068] In some embodiments of this utility model, reference is made to Figure 1 , Figure 7 The conveying device 600 includes a horizontal conveying guide rail 610, a horizontal conveying frame 620, a vertical conveying guide rail 630, a vertical conveying frame 640, a gripper rotating part 650, and a conveying gripper 660. The horizontal conveying guide rail 610 can guide the horizontal conveying frame 620 to move horizontally. The vertical conveying guide rail 630 is located on the horizontal conveying frame 620 and can guide the vertical conveying frame 640 to move up and down. The gripper rotating part 650 is located on the vertical conveying frame 640 and can rotate. The conveying gripper 660 is located on the gripper rotating part 650 and can grip the battery 900.

[0069] After the transport gripper 660 clamps the battery 900, the battery 900 can be lifted along the vertical transport guide rail 630 and transported along the horizontal transport guide rail 610. Furthermore, after the transport gripper 660 clamps the battery 900, the angle can be adjusted by rotating the gripper rotating part 650 to adjust the orientation of the battery 900. This ensures that the battery 900 can pass through the external output opening 201 and external input opening 202 of the fixed outer cylinder 200, and also ensures that when the battery 900 is transported into the fixed groove 321, the cut of the battery 900 faces the outside of the rotating inner cylinder 300, making it easier for the electrolyte to be separated.

[0070] The battery recycling and processing apparatus according to other embodiments of the present invention includes the lithium battery electrolyte recycling apparatus according to the above embodiments of the present invention.

[0071] The battery recycling device according to the present invention reduces the processing difficulty of the battery recycling device by adopting the above-mentioned lithium battery electrolyte recycling device, facilitates the integrated design of the battery recycling device, and can improve the safety of battery recycling and processing, thereby enhancing the safety of the working environment.

[0072] Other components and operations of the battery recycling and processing device according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0073] The following is for reference. Figure 1 and Figure 2 A lithium battery electrolyte recovery device according to an embodiment of the present invention is described in detail below with reference to a specific example. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0074] like Figure 1 and Figure 2 As shown, the lithium battery electrolyte recycling device according to an embodiment of the present invention includes a trimming device 100, a fixed outer cylinder 200 and a rotating inner cylinder 300, a battery fixing device 400, a conveying device 600, a workstation frame 700 and a workstation limiting device 800, used to trim the edges 910 of the battery 900 and separate the electrolyte inside the battery 900.

[0075] The input station 520 is equipped with a battery conveyor line 521, an edge-cutting conveyor line 522, an edge-cutting device 100, a conveying device 600, a station frame 700, and a station limiting device 800. The edge-cutting device 100 includes an edge-cutting cylinder 110 and an edge-cutting blade 120. The conveying device 600 includes a conveying horizontal guide rail 610, a conveying horizontal frame 620, a conveying vertical guide rail 630, a conveying vertical frame 640, a gripper rotating part 650, and a conveying gripper 660. The station frame 700 includes a battery placement position 710, an edge-cutting guide surface 720, an edge-cutting hole 730, a limiting vertical plate 740, a limiting vertical surface 741, and a clearance cylinder 742. The station limiting device 800 includes a limiting cylinder 810 and a limiting top block 820.

[0076] The fixed outer cylinder 200 has an external output opening 201, an external input opening 202, and an inner cavity 203. The fixed outer cylinder 200 is equipped with an inner support frame 210, an inverted conical surface 220, a liquid pump 230, a column 240, a base frame 250, and an end cap 260. The fixed outer cylinder 200 houses a rotating inner cylinder 300 and a battery fixing device 400. The rotating inner cylinder 300 includes a rotary motor 310, an absolute encoder 311, a battery housing 320, a fixing groove 321, an inner cylinder body 330, a stop rod receiving hole 331, an inner cylinder body support column 340, and a rotating support frame 350. The battery fixing device 400 includes a longitudinal cylinder 410, a longitudinal top block 411, a transverse cylinder 420, a transverse top block 421, a corner cylinder 430, and a stop rod 431. The fixed outer cylinder 200, the rotating inner cylinder 300, and the battery fixing device 400 constitute a centrifugal recovery mechanism.

[0077] The output station 510 is also equipped with a conveying device 600.

[0078] In this embodiment, the lithium battery electrolyte recovery device of this utility model also has a system control module. The system control module is used to control the battery conveyor line 521, the edge cutting conveyor line 522, the handling device 600, the edge trimming device 100, and the centrifugal recovery mechanism to closely coordinate and achieve automated and intelligent operation.

[0079] According to the lithium battery electrolyte recovery device of this utility model embodiment, by setting it up in this way, at least the following effects can be achieved: first, the edge 910 of the battery 900 is cut open by the edge trimming device 100; then, the battery 900 is moved from the outer cylinder opening of the fixed outer cylinder 200 into the inner cavity 203 of the outer cylinder and inserted into the fixing groove 321 on the rotating inner cylinder 300; then, the battery fixing device 400 fixes the battery 900; then, the rotating motor 310 drives the rotating inner cylinder 300 to rotate at high speed, thus completing the separation of the electrolyte from the battery 900 and realizing the recovery of the electrolyte.

[0080] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0081] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A lithium battery electrolyte recovery device, characterized in that, include: A trimming device (100) is used to cut the edges (910) of the battery (900); A fixed outer cylinder (200) has an inner cavity (203) and an opening. A rotating inner cylinder (300) is located inside the fixed outer cylinder (200). The rotating inner cylinder (300) is connected to a rotating motor (310). A fixing groove (321) is provided on the side wall of the rotating inner cylinder (300). The battery (900) can pass through the opening of the outer cylinder and be inserted into the fixing groove (321). A battery fixing device (400) is provided on the rotating inner cylinder (300). The battery fixing device (400) can fix the battery (900) located in the fixing groove (321).

2. The lithium battery electrolyte recovery device according to claim 1, characterized in that, The outer wall of the fixed outer cylinder (200) is provided with an external output opening (201) and an external input opening (202) on the left and right sides respectively. The external output opening (201) and the external input opening (202) serve as the outer cylinder openings of the fixed outer cylinder (200). An output station (510) is provided on the left side of the fixed outer cylinder (200), and an input station (520) is provided on the right side of the fixed outer cylinder (200). Both the output station (510) and the input station (520) are provided with a conveying device (600), which is capable of conveying the battery (900). The input station (520) is equipped with a station frame (700), a station limiting device (800) and the trimming device (100). The station limiting device (800) can fix the battery (900) on the station frame (700).

3. The lithium battery electrolyte recovery device according to claim 2, characterized in that, The workstation frame (700) has a battery placement position (710) on its upper side and a trimming guide surface (720) on its lower side. A trimming hole (730) is provided between the battery placement position (710) and the trimming guide surface (720). The trimming hole (730) can hold the edge (910) to be trimmed on the battery (900). The trimming device (100) includes a trimming cylinder (110) and a trimming blade (120). The trimming cylinder (110) can drive the trimming blade (120) to reciprocate along the trimming guide surface (720).

4. The lithium battery electrolyte recovery device according to claim 2, characterized in that, The upper side of the workstation frame (700) is provided with a limiting vertical plate (740), and the limiting vertical plate (740) has a limiting vertical surface (741). The station limiting device (800) includes a limiting cylinder (810) and a limiting top block (820). The limiting cylinder (810) can drive the limiting top block (820) to reciprocate. The limiting top block (820) and the limiting vertical surface (741) can clamp the battery (900).

5. The lithium battery electrolyte recovery device according to claim 1, characterized in that, The rotary motor (310) has a rotating shaft on its lower side, which is connected to the rotating inner cylinder (300). A rotating support frame (350) is connected to the outer wall of the rotary motor (310). The upper part of the inner cavity of the fixed outer cylinder (200) is provided with an inner support frame (210), and the rotating support frame (350) is connected to the inner support frame (210).

6. The lithium battery electrolyte recovery device according to claim 1 or 5, characterized in that, The rotating inner cylinder (300) includes an inner cylinder body (330), and an inner cylinder support column (340) is provided in the middle of the inner bottom wall of the inner cylinder body (330). The inner cylinder support column (340) is connected to the rotating shaft of the rotating motor (310), so that the rotating motor (310) can drive the inner cylinder body (330) to rotate. A battery receiving portion (320) is provided between the outer wall of the inner cylinder support column (340) and the inner wall of the inner cylinder (330), and the fixing groove (321) is located inside the battery receiving portion (320).

7. The lithium battery electrolyte recovery device according to claim 6, characterized in that, The battery fixing device (400) includes a longitudinal cylinder (410) and a transverse cylinder (420). The longitudinal cylinder (410) is provided with a longitudinal top block (411), and the transverse cylinder (420) is provided with a transverse top block (421). The longitudinal cylinder (410) is located on the upper side of the battery receiving part (320), and the transverse cylinder (420) is located on the outer side wall of the battery receiving part (320). The longitudinal cylinder (410) can drive the longitudinal top block (411) to press against the upper side of the battery (900), and the transverse cylinder (420) can drive the transverse top block (421) to press against the outer side wall of the battery (900).

8. The lithium battery electrolyte recovery device according to claim 6, characterized in that, The battery fixing device (400) includes a corner cylinder (430) and a stop bar (431). The corner cylinder (430) is located outside the battery receiving part (320). The corner cylinder (430) can drive the stop bar (431) to rotate and reciprocate. The inner cylinder (330) has a stop rod receiving hole (331) on its outer side wall. When the stop rod (431) is in the retracted state, the stop rod (431) is driven to rotate by the corner cylinder (430) and retract into the stop rod receiving hole (331). When the stop lever (431) is in the extended state, the stop lever (431) is driven by the angle cylinder (430) to extend out of the stop lever receiving hole (331) and rotate to lock the battery (900) in the fixing groove (321).

9. The lithium battery electrolyte recovery device according to claim 1, characterized in that, The lower side wall of the fixed outer cylinder (200) has an inverted conical surface (220), and a liquid pump (230) is connected to the lower end of the inverted conical surface (220).

10. The lithium battery electrolyte recovery device according to claim 2, characterized in that, The transport device (600) includes a transport horizontal guide rail (610), a transport horizontal frame (620), a transport vertical guide rail (630), a transport vertical frame (640), a gripper rotating part (650), and a transport gripper (660). The transverse transport guide rail (610) can guide the transverse transport frame (620) to move horizontally, the vertical transport guide rail (630) is located on the transverse transport frame (620), and the vertical transport guide rail (630) can guide the vertical transport frame (640) to move up and down. The gripper rotating part (650) is located on the transport vertical frame (640), the gripper rotating part (650) is rotatable, the transport gripper (660) is located on the gripper rotating part (650), and the transport gripper (660) is able to grip the battery (900).

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