Pole piece recovery device

Abstract

This application discloses an electrode recovery device, comprising: a base, a conveying mechanism, a cooling mechanism, a heating mechanism, and a material box; the conveying mechanism includes a first conveying component disposed on the base, and the material box is disposed on the first conveying component, the material box being used to hold the electrode; the base is provided with a cooling zone and a heating zone; the cooling mechanism is disposed in the cooling zone, and the heating mechanism is disposed in the heating zone; the first conveying component can circulate between the cooling zone and the heating zone to cool the electrode in the material box through the cooling mechanism and heat the electrode in the material box through the heating mechanism. Thus, through the circulatory movement of the first conveying component between the cooling zone and the heating zone, the electrode is subjected to alternating action of the heating mechanism and the cooling mechanism, thereby utilizing the difference in thermal expansion coefficients between the current collector and the active material layer in the electrode to promote the delamination of the bonding interface between the current collector and the active material layer, thereby improving the separation rate.

Description

Technical Field

[0001] This application belongs to the field of electrode recycling technology, specifically relating to an electrode recycling device. Background Technology

[0002] With the development of new energy technologies, the demand for batteries has surged. However, due to the short lifespan of batteries, the number of discarded batteries has also increased dramatically. Directly discarding discarded batteries pollutes the environment. At the same time, the metals such as nickel, cobalt, manganese, lithium, iron, copper, and aluminum in discarded batteries have high recycling value, so discarded batteries are recycled.

[0003] In related technologies, mechanical crushing, pyrolysis, and organic solvent dissolution are commonly used to separate electrode sheets. However, due to inherent technological limitations, these methods suffer from problems such as low separation rates during the electrode separation process. Utility Model Content

[0004] This application aims to provide an electrode recovery device that can solve the problem of low electrode separation rate in the prior art.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] This application provides an electrode recycling device, comprising: a base, a conveying mechanism, a cooling mechanism, a heating mechanism, and a material box; the conveying mechanism includes a first conveying component disposed on the base, the material box being disposed on the first conveying component, and the material box being used to hold electrode sheets; the base is provided with a cooling zone and a heating zone; the cooling mechanism is disposed in the cooling zone, the heating mechanism is disposed in the heating zone, and the first conveying component is capable of cyclically moving between the cooling zone and the heating zone to cool the electrode sheets in the material box via the cooling mechanism and to heat the electrode sheets in the material box via the heating mechanism.

[0007] Optionally, the cooling mechanism includes a cooling component and a first housing; the first housing is installed in the cooling zone, and a cooling chamber is provided in the first housing; the cooling component is disposed in the cooling chamber, and the cooling component is used to cool the material box passing through the cooling chamber.

[0008] Optionally, the cooling assembly includes a spray element, a drive pump, and a storage tank; the storage tank and the drive pump are respectively located in the cooling zone, the input end of the drive pump is connected to the storage tank, the output end of the drive pump is connected to the spray element, and the spray element is installed on the cavity wall of the cooling chamber; the storage tank contains a cooling medium, and the drive pump is used to pressurize the cooling medium so that it is sprayed by the spray element onto the electrode in the material box.

[0009] Optionally, the cooling mechanism further includes a first detection element and a blocking element; the first detection element and the blocking element are disposed in the first housing and are electrically connected; when the material box passes the first detection element, the blocking element moves relative to the material box to block the material box.

[0010] Optionally, the cooling mechanism further includes a first gate and a second detection element; one end of the first housing is provided with a first inlet, and the first gate is located at the first inlet; the second detection element is located at the first transmission assembly near the first inlet, and the second detection element is electrically connected to the first gate; the second detection element is used to detect whether the material box has passed through the second detection element, and the first gate can open or close based on the detection status of the second detection element; and / or, the cooling mechanism further includes a second gate and a third detection element, the other end of the first housing is provided with a first outlet, the second gate is located at the first outlet, the third detection element is located in the first housing near the first outlet, and the third detection element is electrically connected to the second gate; the third detection element is used to detect whether the material box has passed through the third detection element, and the second gate can open or close based on the detection status of the third detection element.

[0011] Optionally, the heating mechanism includes a second housing and a heating component; the second housing is installed in the heating zone, the second housing has a heating chamber, the heating component is disposed in the heating chamber, and the heating component is used to heat the material box passing through the heating chamber.

[0012] Optionally, the heating mechanism further includes a third gate and a fourth detection element. One end of the second housing has a second inlet, and the third gate is located at the second inlet. The fourth detection element is located near the second inlet on the first transmission assembly and is electrically connected to the third gate. The fourth detection element is used to detect whether the material box has passed through it, and the third gate can open or close based on the detection status of the fourth detection element. Alternatively, the heating mechanism further includes a fourth gate and a fifth detection element. The other end of the second housing has a second outlet, and the fourth gate is located at the second outlet. The fifth detection element is located near the second outlet in the second housing and is electrically connected to the fourth gate. The fifth detection element is used to detect whether the material box has passed through it, and the fourth gate can open or close based on the detection status of the fifth detection element.

[0013] Optionally, the first transmission component includes a first transmission element and a second transmission element other than the first transmission element; the first transmission component is annular, and the base is further provided with a pushing area located between the cooling area and the heating area, the first transmission element is disposed in the pushing area, the first transmission element is movable relative to the second transmission element, and the second transmission element is disposed in the cooling area and the heating area.

[0014] Optionally, it further includes a first pushing mechanism and a screening mechanism; the first pushing mechanism is disposed on one side of the first transmission member; the transmission mechanism further includes a second transmission component; the second transmission component includes a third transmission member, the third transmission member is disposed on the other side of the first transmission member, and the screening mechanism is located on the side of the third transmission member away from the first transmission member; the first pushing mechanism is used to push the first transmission member toward the screening mechanism, so that the material box located on the first transmission member is transferred to the third transmission member, and then transferred to the screening mechanism.

[0015] Optionally, it also includes a counter and a controller; the counter is located in the pushing area to count the material boxes passing through the pushing area, and the controller is electrically connected to the counter; when the counter counts a preset number of times, the controller controls the first pushing mechanism to work based on the counter counts.

[0016] Optionally, the first pushing mechanism further includes a support platform and a pushing component; the support platform is disposed on the side of the first transmission member near the base, the first transmission member is slidably connected to the support platform, the pushing component is disposed on the support platform and connected to the first transmission member, and the pushing component is used to push the first transmission member to slide toward the screening mechanism.

[0017] Optionally, the pushing assembly includes a driving member, a pushing frame, a cam, and a fixing member; the fixing member, the driving member, and the pushing frame are respectively disposed on the support platform; the cam and the fixing member are rotatably connected, and the driving member and the cam are connected; the cam is disposed in the pushing frame, and the pushing frame is movably connected to the first transmission member; the driving member is used to drive the cam to rotate, so that the cam drives the pushing frame to move.

[0018] Optionally, the screening mechanism includes a screening element and a screening cylinder; the screening cylinder is located on the other side of the first transmission element, the screening element is located in the screening cylinder, and the screening element has a plurality of screening holes arranged at intervals, the screening element being used to separate the electrode sheets.

[0019] Optionally, it also includes a feeding mechanism; the base is provided with a pouring area, the feeding mechanism includes a feeding platform and an electromagnetic component, the feeding platform is provided in the pouring area, and the electromagnetic component is provided on the side of the feeding platform close to the base; the material box includes a material box body and a fifth gate, the material box body is provided with a discharge port, the fifth gate is provided at the discharge port, and the fifth gate is movably connected to the material box body;

[0020] When the material bin is located in the unloading area, the electromagnetic component operates to move the fifth gate relative to the material bin body, so that the electrode in the material bin is transferred to the screening mechanism.

[0021] Optionally, it further includes a second pushing mechanism; the second pushing mechanism is disposed on one side of the third transmission member, and the second transmission assembly further includes a fourth transmission member disposed between the third transmission member and the second transmission member; the second pushing mechanism is used to push the material box in the pouring area onto the fourth transmission member, and transport the material box to the cooling area through the fourth transmission member.

[0022] In this embodiment, the first transmission component cyclically moves between the cooling and heating zones, causing the electrode to be subjected to alternating heating and cooling mechanisms. This utilizes the difference in thermal expansion coefficients between the current collector and the active material layer within the electrode to generate periodic stress changes, prompting the delamination of the interface between the current collector and the active material layer. Compared to single-temperature processing methods, the hot-cold cycle overcomes the temperature control bottleneck of traditional pyrolysis methods, significantly improving the separation integrity of the electrode material and thus increasing the separation rate.

[0023] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a top view of an electrode recycling apparatus according to an embodiment of this application;

[0026] Figure 2 yes Figure 1 Top view of the intermediate cooling mechanism;

[0027] Figure 3 yes Figure 1 Side view of the intermediate cooling mechanism;

[0028] Figure 4 yes Figure 1Top view of the heating mechanism;

[0029] Figure 5 yes Figure 1 Side view of the heating mechanism

[0030] Figure 6 yes Figure 1 A top view of the first propulsion mechanism;

[0031] Figure 7 yes Figure 1 Side view of the first propulsion mechanism;

[0032] Figure 8 yes Figure 1 A top view of the second propulsion mechanism, screening mechanism, and material receiving mechanism;

[0033] Figure 9 yes Figure 1 Side view of the screening mechanism and the feeding mechanism.

[0034] Figure label:

[0035] 1. Transmission mechanism; 11. First transmission component; 111. First transmission element; 12. Second transmission component; 121. Third transmission element; 122. Fourth transmission element;

[0036] 2. Cooling mechanism; 21. First housing; 22. Cooling assembly; 221. Spray component; 222. Drive pump; 223. Liquid storage tank; 23. First detection component; 24. Blocking component; 25. First gate; 26. Second detection component; 27. Second gate; 28. Third detection component;

[0037] 3. Heating mechanism; 31. Second chamber; 32. Heating assembly; 33. Third gate; 34. Fourth inspection piece; 35. Fourth gate; 36. Fifth inspection piece;

[0038] 4. Material box; 41. Material box body; 42. Fifth gate;

[0039] 5. First pushing mechanism; 51. Slider; 52. Slide rail; 53. Support platform; 54. Pushing assembly; 541. Driving component; 542. Pushing frame; 543. Cam; 544. Fixing component;

[0040] 6. Screening mechanism; 61. Screening component; 62. Screening cylinder;

[0041] 7. Feeding mechanism; 71. Feeding platform; 72. Electromagnetic components;

[0042] 8. Second driving body;

[0043] 9. Base;

[0044] 10. Counter. Detailed Implementation

[0045] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated 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 application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0046] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] The electrode recycling device provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0050] like Figure 1As shown in the embodiment of this application, an electrode recycling device is proposed, including: a base 9, a transmission mechanism 1, a cooling mechanism 2, a heating mechanism 3, and a material box 4; the transmission mechanism 1 includes a first transmission component 11, which is disposed on the base 9, and the material box 4 is disposed on the first transmission component 11, and the material box 4 is used to place the electrode; the base 9 is provided with a cooling zone and a heating zone; the cooling mechanism 2 is disposed in the cooling zone, and the heating mechanism 3 is disposed in the heating zone; the first transmission component 11 can circulate between the cooling zone and the heating zone to cool the electrode in the material box 4 through the cooling mechanism 2 and to heat the electrode in the material box 4 through the heating mechanism 3.

[0051] It is understandable that the electrode includes a current collector and an active material layer, with the active material layer located on both sides of the current collector. The current collector and the active material layer have different coefficients of thermal expansion.

[0052] In this embodiment, the first transmission component 11 cyclically moves between the cooling zone and the heating zone, causing the electrode to be subjected to alternating action of the heating mechanism 3 and the cooling mechanism 2. This utilizes the difference in thermal expansion coefficients between the current collector and the active material layer in the electrode to generate periodic stress changes within the electrode, causing the bonding interface between the current collector and the active material layer to peel off. Compared to a single-temperature treatment method, the hot-cold cycle overcomes the temperature control bottleneck of traditional pyrolysis methods, significantly improving the separation integrity of the electrode material and thus increasing the separation rate.

[0053] Specifically, such as Figure 1 As shown, the cooling zone and heating zone are arranged alternately on the base 9. The first transmission component 11 is provided with corresponding transmission components in the corresponding cooling zone and heating zone to facilitate the transmission of the material box 4 to the cooling zone and heating zone.

[0054] In some embodiments, the first transmission component 11 may be as follows: Figure 1 The ring-shaped transmission component shown can also be a linear transmission component with round-trip function; this application embodiment does not impose any limitations on it.

[0055] It is understood that the material box 4 has an open receiving cavity in which the electrode is placed. The opening of the receiving cavity faces the heating mechanism 3 and the cooling mechanism 2 so that the heating mechanism 3 and the cooling mechanism 2 can heat and cool the electrode.

[0056] Optionally, such as Figure 2 and Figure 3 As shown, the cooling mechanism 2 includes a cooling component 22 and a first housing 21; the first housing 21 is installed in the cooling zone, and a cooling chamber is provided in the first housing 21. The cooling component 22 is located in the cooling chamber and is used to cool the material box 4 that has passed through the cooling chamber.

[0057] In this embodiment, by integrating the cooling component 22 into the cooling cavity of the first housing 21, a closed heat exchange environment is formed. This causes the current collector and the active material layer to undergo differentiated shrinkage deformation during the rapid cooling process, further amplifying the interfacial thermal stress, overcoming the heat conduction limitations of traditional natural cooling, and significantly improving the interlayer peeling efficiency.

[0058] It is understood that the first housing 21 can be installed at the position corresponding to the first transmission component 11 and the cooling zone, or it can be installed on the base 9. This embodiment of the application does not impose any restrictions here.

[0059] Optionally, such as Figure 2 and Figure 3 As shown, the cooling assembly 22 includes a spray element 221, a drive pump 222, and a storage tank 223. The storage tank 223 and the drive pump 222 are respectively located in the cooling zone. The input end of the drive pump 222 is connected to the storage tank 223, and the output end of the drive pump 222 is connected to the spray element 221. The spray element 221 is installed on the cavity wall of the cooling chamber. The storage tank 223 contains a cooling medium, and the drive pump 222 is used to pressurize the cooling medium so that it is sprayed by the spray element 221 onto the electrode in the material box 4.

[0060] In this embodiment, a closed-loop pressurized cooling circuit is formed by the spray element 221, the drive pump 222, and the storage tank 223. The drive pump 222 pressurizes the cooling medium to form a high-speed jet, which is then directionally covered by the spray element 221 on the electrode surface. This allows the dynamic fluid impact force to force the cooling medium to penetrate into the gaps between the electrode layers, increasing the non-uniform contraction between the fluid and the active material layers, thereby generating directional shear stress at the interface and significantly improving the interlayer separation efficiency.

[0061] In specific applications, the cooling medium is liquid carbon dioxide, liquid nitrogen, etc., and this application does not limit the specific applications.

[0062] In another embodiment, the cooling component 22 can also be an air-cooled component, which includes a fan and an evaporator. The fan is located on the cavity wall of the cooling chamber, and the evaporator and the fan are connected. The evaporator is used to convert hot air into cold air and provide it to the fan. The fan blows the cold air toward the electrode.

[0063] In some other embodiments, the cooling assembly 22 includes a liquid nitrogen injection module and a liquid nitrogen tank: the liquid nitrogen injection module and the liquid nitrogen tank are connected, the liquid nitrogen tank contains liquid nitrogen, the liquid nitrogen injection module includes an annular distributor and an atomizing nozzle, the annular distributor is disposed on the cavity wall of the cooling chamber, and the nozzle cools the electrode with liquid nitrogen from the liquid nitrogen tank.

[0064] Optionally, such as Figure 2 and Figure 3As shown, the cooling mechanism 2 also includes a first detection element 23 and a blocking element 24; the first detection element 23 and the blocking element 24 are disposed in the first housing 21 and are electrically connected; when the material box 4 passes the first detection element 23, the blocking element 24 moves relative to the material box 4 to block the material box 4.

[0065] In this embodiment, a closed-loop feedback system is formed by the first detection element 23 and the blocking element 24 to sense the displacement state of the material box 4 in the cooling chamber in real time and trigger the adaptive movement of the blocking element 24. This ensures that the electrode is within the spray range of the spraying element 221 so that the electrode is fully sprayed, the heat stress of the current collector and the active material layer is fully released, and the interface residue adhesion caused by incomplete cooling is avoided.

[0066] Specifically, the first detection element 23 is disposed on one side of the spray element 221, and the blocking element 24 is disposed on the other side of the spray element 221. After the material box 4 passes the first detection element 23, the blocking element 24 moves relative to the material box 4 to block the material box 4, so that the material box 4 is within the spray range of the spray element 221.

[0067] It should be noted that the first detection element 23 can be a photoelectric sensor, a proximity switch, an ultrasonic sensor, etc.; the blocking element 24 can be a pneumatic push rod, an electric telescopic rod, a mechanical baffle, a servo-driven rotating baffle, etc., and the embodiments of this application are not limited here.

[0068] Optionally, such as Figure 2 and Figure 3 As shown, the cooling mechanism 2 also includes a first gate 25 and a second detection element 26; one end of the first housing 21 is provided with a first inlet, and the first gate 25 is provided at the first inlet; the second detection element 26 is provided at the first transmission assembly 11 near the first inlet, and the second detection element 26 is electrically connected to the first gate 25; the second detection element 26 is used to detect whether the material box 4 has passed through the second detection element 26, and the first gate 25 can be opened or closed based on the detection status of the second detection element 26.

[0069] In this embodiment, the second detection element 26 and the first gate 25 form an inlet closed-loop feedback system to sense the approach status of the material box 4 in real time, thereby precisely controlling the opening and closing sequence of the first gate 25. In this way, the first gate 25 remains closed when the material box 4 has not arrived, blocking the heat convection between the cooling chamber and the external environment, reducing the cold energy loss of the cooling medium, maintaining the stability of the low temperature field in the cooling chamber, and ensuring the consistency of the rapid cooling effect between the current collector and the active material layer.

[0070] Specifically, the cooling mechanism 2 also includes a first electromagnetic module, which is located above the first gate 25. After the material box 4 passes the second detection element 26, the first electromagnetic module is energized to generate magnetic force to attract the first gate 25. After the material box 4 enters the cooling chamber, the first electromagnetic module is de-energized, and the first gate 25 falls down to close the first inlet.

[0071] Optionally, such as Figure 2 and Figure 3 As shown, the cooling mechanism 2 also includes a second gate 27 and a third detection element 28. The other end of the first housing 21 is provided with a first outlet. The second gate 27 is located at the first outlet. The third detection element 28 is located in the first housing 21 near the first outlet. The third detection element 28 is electrically connected to the second gate 27. The third detection element 28 is used to detect whether the material box 4 has passed through the third detection element 28. The second gate 27 can be opened or closed based on the detection status of the third detection element 28.

[0072] In this embodiment, an outlet closed-loop control system is formed by the third detection element 28 and the second gate 27 to precisely control the opening and closing sequence of the second gate 27 by detecting the removal status of the material box 4 in real time. In this way, the second gate 27 is kept closed when the material box 4 is not removed, blocking the heat convection between the cooling chamber and the external environment, reducing the cold energy loss of the cooling medium, maintaining the stability of the low temperature field in the cooling chamber, and saving energy.

[0073] Specifically, the cooling mechanism 2 also includes a second electromagnetic module, which is located above the second gate 27. After the material box 4 passes the third detection element 28, the second electromagnetic module is energized to generate magnetic force to attract the first gate 25. After the material box 4 leaves the cooling chamber, the second electromagnetic module is de-energized, and the second gate 27 falls to close the first outlet.

[0074] It should be noted that the second detection element 26 and the third detection element 28 may be the same as or different from the first detection element 23. This application embodiment does not impose any restrictions here.

[0075] Optionally, such as Figure 4 and Figure 5 As shown, the heating mechanism 3 includes a second housing 31 and a heating component 32; the second housing 31 is installed in the heating zone, and a heating chamber is provided in the second housing 31. The heating component 32 is located in the heating chamber and is used to heat the material box 4 that passes through the heating chamber.

[0076] In this embodiment, the heat conduction path is constrained by the enclosed heating cavity in the second housing 31, and a closed heat exchange environment is formed in conjunction with the distributed layout of the heating components 32. This causes directional shear stress to be generated between the current collector and the active material layer due to the difference in their thermal expansion coefficients, overcoming the insufficient interfacial peeling force of traditional uniform heating and promoting efficient separation of the two at the interface.

[0077] Specifically, the heating component 32 can be an infrared radiation plate, an electromagnetic induction coil, an eddy current heating coil, etc., and this application embodiment does not impose any limitations. For example, the heating component 32 is an eddy current heating coil, which is arranged to extend longitudinally along the second housing 31 so that the electrode in the material box 4 can be heated at any position in the heating cavity.

[0078] It is understood that the second housing 31 can be installed at the position corresponding to the first transmission component 11 and the cooling zone, or it can be installed on the base 9. This application embodiment does not impose any restrictions here.

[0079] Optionally, such as Figure 4 and Figure 5 As shown, the heating mechanism 3 also includes a third gate 33 and a fourth detection element 34. One end of the second housing 31 is provided with a second inlet, and the third gate 33 is located at the second inlet. The fourth detection element 34 is located near the second inlet of the first transmission component 11, and the fourth detection element 34 is electrically connected to the third gate 33. The fourth detection element 34 is used to detect whether the material box 4 has passed through the fourth detection element 34, and the third gate 33 can be opened or closed based on the detection status of the fourth detection element 34.

[0080] In this embodiment, the fourth detection element 34 and the third gate 33 constitute a closed-loop control system for the heating zone entrance, which senses the approach status of the material box 4 in real time and precisely controls the opening and closing sequence of the third gate 33. Thus, the third gate 33 remains closed until the material box 4 arrives, blocking heat exchange between the heating chamber and the external environment, improving the stability of the high-temperature field within the heating chamber, avoiding uneven softening of the binder in the active material layer due to temperature fluctuations, and ensuring the synchronous thermal expansion of the current collector and the active material layer.

[0081] Specifically, the heating mechanism 3 also includes a third electromagnetic module, which is located above the third gate 33. After the material box 4 passes the fourth detection element 34, the third electromagnetic module is energized to generate magnetic force to attract the third gate 33. After the material box 4 enters the heating chamber, the third electromagnetic module is de-energized, and the third gate 33 falls down to close the second inlet.

[0082] Optionally, such as Figure 4 and Figure 5 As shown, the heating mechanism 3 also includes a fourth gate 35 and a fifth detection element 36. The other end of the second housing 31 is provided with a second outlet, and the fourth gate 35 is located at the second outlet. The fifth detection element 36 is located in the second housing 31 near the second outlet, and the fifth detection element 36 is electrically connected to the fourth gate 35. The fifth detection element 36 is used to detect whether the material box 4 has passed through the fifth detection element, and the fourth gate 35 can be opened or closed based on the detection status of the fifth detection element 36.

[0083] In this embodiment, the fifth detection element 36 and the fourth gate 35 constitute a closed-loop feedback system for the heating zone outlet, which senses the removal status of the material box 4 in real time and controls the staged closing action of the fourth gate 35. In this way, when the tail of the material box 4 leaves the heating chamber, the fourth gate 35 closes, blocking the heat convection between the heating chamber and the external environment, reducing heat loss, and saving energy.

[0084] Specifically, the heating mechanism 3 also includes a fourth electromagnetic module, which is located above the fourth gate 35. After the material box 4 passes the fifth detection element 36, the fourth electromagnetic module is energized to generate magnetic force to attract the fourth gate 35. After the material box 4 leaves the heating chamber, the fourth electromagnetic module is de-energized, and the fourth gate 35 falls down to close the second outlet.

[0085] Optionally, such as Figure 1 As shown, the first transmission component 11 includes a first transmission element 111 and a second transmission element other than the first transmission element 111; the first transmission component 11 is annular, and the base 9 is also provided with a pushing area located between the cooling area and the heating area. The first transmission element 111 is located in the pushing area and can move relative to the second transmission element. The second transmission element is located in the cooling area and the heating area.

[0086] In this embodiment, a split-type ring-shaped transmission system is formed by the first transmission element 111 and the second transmission element, with the first transmission element 111 moving independently in the pushing zone. This facilitates dynamic rate switching of the material box 4 between the cooling zone and the heating zone, ensuring that the residence time of the material box 4 in each processing zone strictly matches the preset process curve, guaranteeing the full release of thermal stress between the current collector and the active material layer, and improving separation efficiency.

[0087] Specifically, the second transmission element is a "C"-shaped transmission element, and the first transmission element 111 is a straight transmission element. The first transmission element 111 is located at the notch of the second transmission element so as to form a ring-shaped first transmission assembly 11.

[0088] In specific applications, the first transmission component 111 and the second transmission component can be a heat-resistant chain conveyor, a roller conveyor, etc., and the embodiments of this application are not limited to these.

[0089] Optionally, such as Figures 6 to 9As shown, it also includes a first pushing mechanism 5 and a screening mechanism 6; the first pushing mechanism 5 is located on one side of the first transmission member 111; the transmission mechanism 1 also includes a second transmission component 12; the second transmission component 12 includes a third transmission member 121, the third transmission member 121 is located on the other side of the first transmission member 111, and the screening mechanism 6 is located on the side of the third transmission member 121 away from the first transmission member 111; the first pushing mechanism 5 is used to push the first transmission member 111 toward the screening mechanism 6 so that the material box 4 located on the first transmission member 111 is transferred to the third transmission member 121, and then transferred to the screening mechanism 6.

[0090] Understandably, after a certain number of hot and cold treatments, the current collector and the active material layer in the electrode separate. Since the current collector is generally metal, it remains in a sheet-like structure, while the active material layer changes from a sheet-like structure to a block structure after the hot and cold treatments.

[0091] In this embodiment, the third transmission member 121 is positioned on the other side of the first transmission member 111, and the screening mechanism 6 is located on the side of the third transmission member 121 away from the first transmission member 111. This facilitates the use of the first pushing mechanism 5 to directionally push the material box 4 from the first transmission member 111 into the processing area of ​​the screening mechanism 6, thereby achieving separation between the current collector and the active material layer.

[0092] like Figure 1 As shown, the transmission direction of the first transmission component 111 intersects with the transmission direction of the third transmission component 121. After the first pushing mechanism 5 pushes the first transmission component 111, it can transport the material box 4 on the first transmission component 111 to the third transmission component 121, and then the third transmission component 121 will transport it to the screening mechanism 6.

[0093] In some embodiments, the third transmission member 121 has a transition section, an ascending section, and a descending section connected in sequence. The transition section is located on the side closer to the first transmission member 111, the descending section is located on the side closer to the screening mechanism 6, and the ascending section is located between the transition section and the descending section. In this way, when the material box 4 is located in the descending section, the electrode sheet can be transported to the screening mechanism 6 by its own gravity.

[0094] Optionally, such as Figure 6 and Figure 7 As shown, it also includes a counter 10 and a controller; the counter 10 is located in the pushing area to count the material boxes 4 passing through the pushing area, and the controller is electrically connected to the counter 10; when the number of counts of the counter 10 meets the preset number, the controller controls the first pushing mechanism 5 to work based on the number of counts of the counter 10.

[0095] In this embodiment, the controller and counter 10 are electrically connected to form a closed-loop feedback system, thereby counting the number of times the material box 4 passes through the push zone in real time. When a preset threshold is reached, the first push mechanism 5 is automatically triggered. This avoids the reliance on manual observation of start and stop processes, thus enabling continuous operation and improving production efficiency.

[0096] Specifically, such as Figure 1 As shown, the preset number of cycles can be set to 3, meaning that after the material box 4 undergoes three hot and cold cycles, it reaches the pushing area again. At this time, the controller controls the first pushing mechanism 5 to work, so that...

[0097] Optionally, such as Figure 6 and Figure 7 As shown, the first pushing mechanism 5 also includes a support platform 53 and a pushing component 54; the support platform 53 is located on the side of the first transmission member 111 near the base 9, the first transmission member 111 is slidably connected to the support platform 53, the pushing component 54 is located on the support platform 53 and connected to the first transmission member 111, and the pushing component 54 is used to push the first transmission member 111 to slide toward the screening mechanism 6.

[0098] In this embodiment, the support platform 53 is disposed on the side of the first transmission member 111 near the base 9, and the first transmission member 111 is slidably connected to the support platform 53. The pushing component 54 is disposed on the support platform 53 and connected to the first transmission member 111. In this way, the support platform 53 and the first transmission member 111 form a high-rigidity sliding pair, and the pushing component 54 linearly drives the first transmission member 111 to slide along a preset trajectory.

[0099] In some embodiments, such as Figure 6 and Figure 7 As shown, the first pushing mechanism 5 also includes a slider 51 and a slide rail 52; the slide rail 52 is fixed on the support platform 53, the slider 51 is fixedly connected to the first transmission member 111, and the slider 51 is slidably connected to the slide rail 52. In this way, when the pushing assembly 54 pushes the first transmission member 111, the first transmission member 111 can slide along the slide rail 52, thereby reducing the power requirement of the pushing assembly 54.

[0100] In specific applications, the first pushing component 54 can be a linear motor, a drive cylinder, or a hydraulic cylinder, etc., and this application embodiment does not impose any limitations.

[0101] Optionally, such as Figure 6 and Figure 7As shown, the pushing assembly 54 includes a driving member 541, a pushing frame 542, a cam 543, and a fixing member 544; the fixing member 544, the driving member 541, and the pushing frame 542 are respectively disposed on the support platform 53, the cam 543 and the fixing member 544 are rotatably connected, and the driving member 541 and the cam 543 are connected; the cam 543 is disposed in the pushing frame 542, and the pushing frame 542 and the first transmission member 111 are movably connected; the driving member 541 is used to drive the cam 543 to rotate, so that the cam 543 drives the pushing frame 542 to move.

[0102] In this embodiment, the cam 543 and the fixing member 544 are rotatably connected, and the driving member 541 and the cam 543 are connected. The cam 543 is disposed in the push frame 542, and the push frame 542 and the first transmission member 111 are movably connected. In this way, the cam 543 cooperates with the sliding pair of the push frame 542 through a preset variable curvature profile surface, converting the rotation of the driving member 541 into the linear motion of the push frame 542, thereby pushing the first output member.

[0103] Specifically, the pushing component 54 further includes a rotating shaft, a first gear, and a second gear; the rotating shaft passes through the fixed member 544, the cam 543, and the first gear, and is rotatably connected to the fixed member 544, and fixedly connected to the first gear and the cam 543; the driving member 541 has an output shaft, which is fixedly connected to the second gear, and the second gear meshes with the first gear. When the driving member 541 rotates, the second gear drives the first gear to rotate, which in turn drives the cam 543 to rotate in the pushing frame 542, and the pushing frame 542 moves linearly under the action of the cam 543.

[0104] Furthermore, the pushing component 54 also includes a fixing block and a guide shaft; the fixing block is located on one side of the pushing frame 542, and the guide shaft passes through the fixing block and is movably connected to the fixing block; a pushing shaft is also provided between the pushing frame 542 and the first transmission member 111, the pushing shaft connects the pushing frame 542 and the first transmission member 111, and the pushing frame 542 pushes the first transmission member 111 through the pushing shaft.

[0105] In specific applications, the driving component 541 can be a motor, cylinder, etc., and this application embodiment does not impose any limitations.

[0106] Optionally, such as Figure 8 and Figure 9 As shown, the screening mechanism 6 includes a screening element 61 and a screening cylinder 62; the screening cylinder 62 is located on the other side of the first transmission element 111, and the screening element 61 is located in the screening cylinder 62. The screening element 61 has a plurality of screening holes arranged at intervals, and the screening element 61 is used to separate the electrode sheets.

[0107] In this embodiment, the screening element 61 forms a gradient screen array with decreasing pore size through spaced-apart screening holes, achieving step-by-step separation by utilizing the particle size difference between the current collector and the active material layer fragments. This improves the separation accuracy between the current collector and the active material layer, meeting the purity requirements of power battery-grade recycled materials.

[0108] In specific applications, the screening component 61 can be a woven wire screen, a perforated plate screen, an electroformed screen, etc., and this application embodiment does not impose any limitations.

[0109] Optionally, such as Figure 8 and Figure 9 As shown, it also includes a feeding mechanism 7; a pouring area is provided on the base 9, and the feeding mechanism includes a feeding platform 71 and an electromagnetic component 72. The feeding platform 71 is located in the pouring area, and the electromagnetic component 72 is located on the side of the feeding platform 71 near the base 9; the material box 4 includes a material box body 41 and a fifth gate 42. The material box body 41 is provided with a discharge port, and the fifth gate 42 is located at the discharge port. The fifth gate 42 is movably connected to the material box body 41; when the material box 4 is located in the pouring area, the electromagnetic component 72 works to make the fifth gate 42 move relative to the material box body 41, so that the electrode in the material box 4 is transferred to the screening mechanism 6.

[0110] In this embodiment, the electromagnetic component 72 is positioned on the side of the material receiving platform 71 near the base 9, and the fifth gate 42 is positioned at the discharge port of the material box body 41, with the fifth gate 42 movably connected to the material box body 41. Thus, when the material box 4 is located in the unloading area, the electromagnetic component 72 and the fifth gate 42 form a closed-loop magnetic control system. Electromagnetic force drives the fifth gate 42 to perform contactless opening and closing actions, achieving fully automated operation from transmission to sorting and improving unloading efficiency.

[0111] Optionally, such as Figure 1 and Figure 8 As shown, it also includes a second pushing mechanism 8; the second pushing mechanism 8 is located on one side of the third transmission member 121, and the second transmission assembly 12 also includes a fourth transmission member 122 located between the third transmission member 121 and the second transmission member; the second pushing mechanism 8 is used to push the material box 4 in the pouring area onto the fourth transmission member 122, and transport the material box 4 to the cooling area through the fourth transmission member 122.

[0112] In this embodiment, a fourth transmission member 122 is provided between the third transmission member 121 and the second transmission member. In this way, the second pusher transports the unloaded material box 4 to the cooling zone via the fourth transmission member 122, realizing an automated, fully cyclical electrode processing flow.

[0113] Specifically, such as Figure 1As shown, the fourth transmission component 122 is "L" shaped. A robotic arm can be installed on one side of the fourth transmission component 122. When the material box 4 is located in the fourth transmission component 122, the robotic arm can place new unprocessed electrode sheets into the material box 4, thereby starting a new round of electrode sheet processing.

[0114] In specific applications, the structures of the second pushing mechanism 8 and the first pushing mechanism 5 may be the same or different, and this application embodiment does not impose any restrictions.

[0115] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., 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 this application. In this specification, the 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.

[0116] Although embodiments of this application 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 this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A pole piece recycling device characterized by, include: The base (9), the transmission mechanism (1), the cooling mechanism (2), the heating mechanism (3), and the material box (4) are all included. The transmission mechanism (1) includes a first transmission component (11), which is disposed on the base (9). The material box (4) is disposed on the first transmission component (11) and is used to place the electrode sheet. The base (9) is provided with a cooling zone and a heating zone; the cooling mechanism (2) is provided in the cooling zone, the heating mechanism (3) is provided in the heating zone, and the first transmission component (11) is capable of circulating between the cooling zone and the heating zone to cool the electrode in the material box (4) through the cooling mechanism (2) and to heat the electrode in the material box (4) through the heating mechanism (3).

2. The electrode recycling device according to claim 1, characterized in that, The cooling mechanism (2) includes a cooling assembly (22) and a first housing (21); The first housing (21) is installed in the cooling zone. The first housing (21) is provided with a cooling chamber. The cooling assembly (22) is provided in the cooling chamber. The cooling assembly (22) is used to cool the material box (4) passing through the cooling chamber.

3. The electrode recycling device according to claim 2, characterized in that, The cooling assembly (22) includes a spray element (221), a drive pump (222), and a liquid storage tank (223); The liquid storage tank (223) and the drive pump (222) are respectively located in the cooling zone. The input end of the drive pump (222) is connected to the liquid storage tank (223), and the output end of the drive pump (222) is connected to the spray element (221). The spray element (221) is installed on the cavity wall of the cooling chamber. The storage tank (223) contains a cooling medium, and the drive pump (222) is used to pressurize the cooling medium so that it is sprayed by the spray element (221) onto the electrode in the material box (4).

4. The electrode recycling device according to claim 2, characterized in that, The cooling mechanism (2) further includes a first detection element (23) and a blocking element (24); The first detection element (23) and the blocking element (24) are disposed in the first housing (21) and are electrically connected; when the material box (4) passes the first detection element (23), the blocking element (24) moves relative to the material box (4) to block the material box (4).

5. The electrode recycling device according to claim 2, characterized in that, The cooling mechanism (2) further includes a first gate (25) and a second detection element (26); one end of the first housing (21) is provided with a first inlet, and the first gate (25) is located at the first inlet; the second detection element (26) is located near the first inlet of the first transmission component (11), and the second detection element (26) is electrically connected to the first gate (25); the second detection element (26) is used to detect whether the material box (4) has passed through the second detection element (26), and the first gate (25) can be opened or closed based on the detection status of the second detection element (26); And / or, the cooling mechanism (2) further includes a second gate (27) and a third detection element (28). The other end of the first housing (21) is provided with a first outlet. The second gate (27) is located at the first outlet. The third detection element (28) is located in the first housing (21) near the first outlet. The third detection element (28) is electrically connected to the second gate (27). The third detection element (28) is used to detect whether the material box (4) has passed through the third detection element (28). The second gate (27) can be opened or closed based on the detection status of the third detection element (28).

6. The electrode recycling device according to claim 1, characterized in that, The heating mechanism (3) includes a second housing (31) and a heating component (32); The second box (31) is installed in the heating zone. The second box (31) is provided with a heating chamber. The heating component (32) is provided in the heating chamber. The heating component (32) is used to heat the material box (4) passing through the heating chamber.

7. The electrode recycling device according to claim 6, characterized in that, The heating mechanism (3) further includes a third gate (33) and a fourth detection element (34). One end of the second housing (31) is provided with a second inlet, and the third gate (33) is located at the second inlet. The fourth detection element (34) is located near the second inlet of the first transmission component (11), and the fourth detection element (34) is electrically connected to the third gate (33). The fourth detection element (34) is used to detect whether the material box (4) has passed through the fourth detection element (34), and the third gate (33) can be opened or closed based on the detection status of the fourth detection element (34). And / or, the heating mechanism (3) further includes a fourth gate (35) and a fifth detection element (36), the other end of the second housing (31) is provided with a second outlet, the fourth gate (35) is provided at the second outlet; the fifth detection element (36) is provided in the second housing (31) near the second outlet, the fifth detection element (36) is electrically connected to the fourth gate (35); the fifth detection element (36) is used to detect whether the material box (4) has passed through the fifth detection element (36), and the fourth gate (35) can be opened or closed based on the detection status of the fifth detection element (36).

8. The electrode recycling apparatus according to any one of claims 1-7, characterized in that, The first transmission component (11) includes a first transmission element (111) and a second transmission element other than the first transmission element (111); The first transmission component (11) is ring-shaped, and the base (9) is also provided with a pushing area located between the cooling area and the heating area. The first transmission member (111) is located in the pushing area. The first transmission member (111) can move relative to the second transmission member. The second transmission member is located in the cooling area and the heating area.

9. The electrode recycling device according to claim 8, characterized in that, It also includes the first driving body (5) and the screening body (6); The first pushing mechanism (5) is located on one side of the first transmission member (111); the transmission mechanism (1) further includes a second transmission component (12); the second transmission component (12) includes a third transmission member (121), the third transmission member (121) is located on the other side of the first transmission member (111), and the screening mechanism (6) is located on the side of the third transmission member (121) away from the first transmission member (111); The first pushing mechanism (5) is used to push the first transmission member (111) toward the screening mechanism (6) so that the material box (4) located on the first transmission member (111) is transferred to the third transmission member (121) and then to the screening mechanism (6).

10. The electrode recycling device according to claim 9, characterized in that, It also includes a counter (10) and a controller; The counter (10) is located in the pushing area to count the material boxes (4) passing through the pushing area, and the controller is electrically connected to the counter (10); When the counter (10) counts a number of times, the controller controls the first push mechanism (5) to work based on the count of the counter (10).

11. The electrode recycling device according to claim 9, characterized in that, The first pushing mechanism (5) also includes a support platform (53) and a pushing component (54); The support platform (53) is located on the side of the first transmission member (111) near the base (9). The first transmission member (111) is slidably connected to the support platform (53). The pushing component (54) is located on the support platform (53) and connected to the first transmission member (111). The pushing component (54) is used to push the first transmission member (111) to slide towards the screening mechanism (6).

12. The electrode recycling device according to claim 11, characterized in that, The pushing assembly (54) includes a driving member (541), a pushing frame (542), a cam (543), and a fixing member (544); The fixing member (544), the driving member (541), and the pushing frame (542) are respectively disposed on the support platform (53). The cam (543) and the fixing member (544) are rotatably connected, and the driving member (541) and the cam (543) are connected. The cam (543) is disposed in the pushing frame (542), and the pushing frame (542) and the first transmission member (111) are movably connected. The drive unit (541) is used to drive the cam (543) to rotate, so that the cam (543) drives the push frame (542) to move.

13. The electrode recycling device according to claim 9, characterized in that, The screening mechanism (6) includes a screening element (61) and a screening cylinder (62); The screening cylinder (62) is located on the other side of the first transmission member (111), and the screening member (61) is located in the screening cylinder (62). The screening member (61) has a plurality of screening holes arranged at intervals. The screening member (61) is used to separate the electrode sheets.

14. The electrode recycling device according to claim 9, characterized in that, It also includes the material feeding mechanism (7); The base (9) is provided with a material pouring area. The material feeding mechanism includes a material feeding platform (71) and an electromagnetic component (72). The material feeding platform (71) is located in the material pouring area, and the electromagnetic component (72) is located on the side of the material feeding platform (71) close to the base (9). The material box (4) includes a material box body (41) and a fifth gate (42). The material box body (41) is provided with a discharge port, and the fifth gate (42) is located at the discharge port. The fifth gate (42) is movably connected to the material box body (41). When the material box (4) is located in the unloading area, the electromagnetic component (72) operates to move the fifth gate (42) relative to the material box body (41) so that the electrode in the material box (4) is transferred to the screening mechanism (6).

15. The electrode recycling device according to claim 14, characterized in that, It also includes a second propulsion mechanism (8); The second pushing mechanism (8) is located on one side of the third transmission member (121), and the second transmission assembly (12) further includes a fourth transmission member (122) located between the third transmission member (121) and the second transmission member; The second pushing mechanism (8) is used to push the material box (4) in the pouring area onto the fourth transmission member (122) and transport the material box (4) to the cooling area through the fourth transmission member (122).

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