Rapid stripping and recycling device for anode current collector and active substance of flash heat type lithium battery

Abstract

The invention discloses a flash heat type lithium battery positive electrode current collector and active substance rapid stripping and recycling device which comprises a transversely-arranged main body supporting frame, a drying box is arranged at the front end of the main body supporting frame, and a residual electrolyte steam treatment air pump is arranged on the right side of the drying box; a continuous transmission device is arranged in the drying box and extends from the front end to the middle of the main body supporting frame. The part, located in the main body supporting frame, of the transmission device comprises a plurality of roller set units arranged at equal intervals in the transverse direction, heating resistors are arranged between the roller set units, electrode powder is scraped away and collected through an upper scraper and a lower scraper after electrode plates are flashed and heated, and aluminum foil is collected through an aluminum foil collecting winding drum. According to the device, the electrode powder stripping efficiency can be remarkably improved, the integrity of the aluminum foil and the active structure of the electrode powder are completely reserved, the energy consumption and the process cost are reduced, and a low-carbon and efficient solution is provided for high-value recovery of electrode waste and retired batteries.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste lithium battery recycling, relates to a lithium battery positive electrode recycling device, and particularly relates to a flash-heat type rapid stripping and recycling device for a lithium battery positive electrode current collector and active substances. Background Art

[0002] With the wide application of lithium-ion batteries in the new energy field, the global demand for lithium metal resources has surged, leading to tight raw material supply and price fluctuations. At the same time, the recycling of about 10% of electrode waste and retired battery positive electrode materials in the battery manufacturing process has become an industry problem. Compared with traditional high-pollution and high-energy-consuming processes such as pyrometallurgy and hydrometallurgy, physical recycling has attracted attention due to its low-carbon characteristics. However, existing technologies, including the air flow stripping method, use high-speed air flow to impact the crushed aluminum foil to separate the electrode powder from the surface of the aluminum foil; the dry stripping machine separates the electrode powder by the mechanical action of the hammers in the grinding chamber to reduce the mixing of copper and aluminum scraps to achieve the purpose of separating the electrode powder; and the microwave sintering method mixes the positive electrode sheet with anhydrous calcium chloride and then performs microwave sintering, and directly separates the aluminum foil and the positive electrode material after cooling and screening. For the above currently commonly used physical stripping technologies, the stripping efficiency of the electrode powder and the aluminum foil is low, and high-temperature treatment causes melting loss of the aluminum foil and damage to the structure of the active material. Although the electrode waste has advantages such as complete active materials and clear chemical components, at low temperatures, it is difficult to strip the current collector and the active substances, and long-term high temperatures will cause the decomposition of lithium iron phosphate and ternary positive electrode materials. Therefore, there is an urgent need to develop a synergistic treatment technology that takes into account the instantaneous cracking of the binder, the complete recovery of the aluminum foil, and the preservation of the structure of the electrode powder, and uses the instantaneous high-temperature technology to break through the energy efficiency and material integrity bottlenecks of physical recycling. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a flash-heat type rapid stripping and recycling device for a lithium battery positive electrode current collector and active substances, which improves the stripping efficiency of the electrode powder, completely retains the integrity of the aluminum foil and the active structure of the electrode powder, significantly reduces energy consumption and process costs, and provides a low-carbon and high-efficiency solution for the high-value recycling of electrode waste and retired batteries.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions to implement:

[0005] A flash-heat type rapid stripping and recycling device for a lithium battery positive electrode current collector and active substances includes a horizontally arranged main body support frame. A drying box is arranged at the front end of the main body support frame, and a residual electrolyte vapor treatment air pump is arranged on the right side of the drying box;

[0006] A continuous transmission device is arranged in the drying box and extends from the front end to the middle of the main body support frame;

[0007] The part of the transmission device located inside the drying oven includes a hollowed-out backing plate arranged parallel to the bottom surface of the drying oven, and multiple groups of pressing and conveying wheels are arranged above the hollowed-out backing plate;

[0008] The part of the transmission device located in the main body support frame includes a first roller group unit, a second roller group unit, and a third roller group unit arranged at equal intervals along the transverse direction, and a fourth roller group unit arranged at the lower rear of the third roller group unit;

[0009] Both the first roller group unit, the second roller group unit, and the fourth roller group unit include two cylindrical rollers arranged longitudinally in parallel, and a gap is reserved between the two rollers; the third roller group unit includes a cylindrical roller located at the lower part and a cam located at the upper part;

[0010] Guide support plates with upper surfaces flush with the hollowed-out backing plate are arranged between the first roller group unit and the second roller group unit and between the second roller group unit and the third roller group unit. An installation groove is preset in the middle of the guide support plate between the second roller group unit and the third roller group unit, and a heating resistor is installed in the installation groove;

[0011] A lower pole powder scraper is arranged below the electrode sheet conveying plane between the third roller group unit and the fourth roller group unit; an upper pole powder scraper is arranged above the electrode sheet conveying plane at the rear of the fourth roller group unit;

[0012] Pole powder collection boxes are arranged at the lower parts of both the lower pole powder scraper and the upper pole powder scraper; an aluminum foil collection reel is arranged at the rear of the upper pole powder scraper;

[0013] One protective gas cylinder for continuously conveying protective gas is arranged on the outer right side of each of the drying oven and the main body support frame, and is connected to the inside of the drying oven and the main body support frame through pipelines respectively;

[0014] A temperature and air pressure monitoring controller and an X-ray fluorescence analyzer are arranged inside the drying oven and the main body support frame;

[0015] A power system for providing power to the transmission device and a display control system for monitoring and controlling the internal operation conditions are also arranged outside the main body support frame.

[0016] The present invention also has the following technical features:

[0017] Preferably, heat insulation layers are arranged on the left and right side walls, the top wall, and the bottom wall of the drying oven, and a group of heating tubes are arranged on each of the heat insulation layers close to the top wall and the bottom wall.

[0018] Preferably, the transmission device is coupled to the drive shafts of the pressing and conveying wheels, the first roller group unit, the second roller group unit, the third roller group unit, and the fourth roller group unit through a rigid linkage mechanism.

[0019] Preferably, a fan with an air supply direction opposite to the feeding direction is provided at the upper part of the rear end of the main body support frame.

[0020] Preferably, the upper pole powder scraper forms an angle of 45±5° with the conveying direction of the electrode sheet, and a gap of 0.1 - 0.3 mm is formed between the cutting edge and the upper surface of the electrode sheet.

[0021] Preferably, the lower pole powder scraper forms an angle of 30±5° with the vertical plane, and a gap of 0.1 - 0.3 mm is formed between the cutting edge and the lower surface of the electrode sheet.

[0022] Preferably, the cam is a cylindrical eccentric cam.

[0023] Preferably, the gap between the roller wheels is an elastic clamping gap of 0.1 - 2 mm.

[0024] Preferably, multiple groups of pressing and conveying wheels are arranged at equal distances relative to each other along the left and right sides of the hollow backing plate.

[0025] Compared with the prior art, the present invention has the following technical effects:

[0026] The present invention pre-evaporates and recovers the electrolyte on the electrode sheet, and then through the instantaneous heating technology with precise temperature control, while avoiding the melting of the aluminum foil, it promotes the rapid decomposition of the binder. Combining multi-roller constant-speed transmission and mechanical oscillation stripping structure, it ensures the efficient separation of the pole powder layer and the aluminum foil interface, improves the efficiency of pole powder stripping, completely retains the integrity of the aluminum foil and the active structure of the pole powder, significantly reduces energy consumption and process costs, and provides a low-carbon and efficient solution for the high-value recycling of electrode waste and retired batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a front structural schematic diagram of the present invention;

[0028] Figure 2 is a back structural schematic diagram of the present invention;

[0029] Figure 3 is a content structural schematic diagram of the present invention;

[0030] Figure 4 is an internal structural schematic diagram of the drying oven;

[0031] Figure 5 is a structural schematic diagram of the internal heating tube of the drying oven;

[0032] The meanings of the reference numerals in the figure are as follows: 1 - main body support frame, 2 - drying oven, 3 - residual electrolyte vapor treatment air pump, 4 - pressing transmission wheel, 5 - first roller group unit, 6 - second roller group unit, 7 - third roller group unit, 701 - cam, 8 - fourth roller group unit, 9 - guiding and supporting plate, 10 - heating resistor, 11 - lower pole powder scraper, 12 - upper pole powder scraper, 13 - pole powder collection box, 14 - aluminum foil collection reel, 15 - protective gas cylinder, 16 - power system, 17 - heat preservation layer, 18 - heating tube, 19 - fan, 20 - hollow backing plate. Detailed implementation mode

[0033] The following further elaborates on the specific content of the present invention in conjunction with embodiments.

[0034] As Figures 1 to 5 shown, this embodiment provides a rapid stripping and recovery device for the positive electrode current collector and active material of a flash heat lithium battery, including a horizontally arranged main body support frame 1. A drying oven 2 is arranged at the front end of the main body support frame 1, and a residual electrolyte vapor treatment air pump 3 is arranged on the right side of the drying oven 2. The electrode sheet first passes through the drying oven 2 to dry the residual electrolyte on the electrode sheet, and a directional air flow is formed through the residual electrolyte vapor treatment air pump 30 to collect the electrolyte volatilization gas.

[0035] A continuous transmission device is arranged in the drying oven 2 from the front end to the middle of the main body support frame 1 to flatten and convey the electrode sheet for further heating, separation, and collection.

[0036] The part of the transmission device located in the drying oven 2 includes a hollow backing plate 20 arranged parallel to the bottom surface of the drying oven 2, and multiple groups of pressing transmission wheels 4 are arranged above the hollow backing plate 20. The surface of the hollow backing plate 20 is provided with hollow holes to form a two-way breathable electrolyte desorption channel. Multiple groups of pressing transmission wheels 4 are arranged at equal distances and oppositely on the left and right sides of the hollow backing plate 20.

[0037] The part of the transmission device located in the main body support frame 1 includes a first roller group unit 5, a second roller group unit 6, and a third roller group unit 7 arranged at equal distances in the horizontal direction, and a fourth roller group unit 8 arranged at the lower part behind the third roller group unit 7.

[0038] The first roller group unit 5, the second roller group unit 6 and the fourth roller group unit 8 each include two cylindrical rollers arranged longitudinally in parallel, with a gap reserved between the two rollers; the third roller group unit 7 includes a cylindrical roller at the lower part and a cam 701 at the upper part; the central axes of the cylindrical roller and the cam 701 are connected to the power system 16. The cylindrical rollers of the first roller group unit 5, the second roller group unit 6 and the fourth roller group unit 8 are divided into upper pressing rollers and lower supporting rollers, and their axis directions are arranged orthogonally to the advancing direction of the electrode sheet; the gap between the rollers is an elastic clamping gap of 0.1 - 2 mm. The electrode sheet is in planar contact coupling with the upper and lower roller surfaces simultaneously. The upper pressing roller rotates clockwise around its own axis, and the lower supporting roller rotates counterclockwise. The coordinated rotation of the double rollers generates a tangential friction force vector with the same direction at the contact interface, and the resultant force direction is the same as the transmission direction of the electrode sheet.

[0039] The cam 701 is a cylindrical eccentric cam. The diameter of the cam 701 is 10 mm, the rotation axis is arranged orthogonally to the transmission direction of the electrode sheet, and the eccentricity is 3 ± 0.1 mm. When the cam 701 rotates at a speed of 60 - 100 rpm, a mechanical oscillation with a period of 1.0 - 1.7 s will be formed at its outer edge, causing interfacial peeling of the electrode powder layer on the surface of the electrode sheet.

[0040] A guide plate 9 with an upper surface flush with the hollow backing plate 20 is provided between the first roller group unit 5 and the second roller group unit 6 and between the second roller group unit 6 and the third roller group unit 7. A mounting groove is preset in the middle of the guide plate 9 between the second roller group unit 6 and the third roller group unit 7, and a heating resistor 10 is installed in the mounting groove. The guide plate 9 guides the electrode sheet from the first roller group unit 5 to the second roller group unit 6 and the third roller group unit 7. Through the cascaded configuration of multiple roller group units, a continuous progressive friction drive is formed to realize the non-slip constant-speed transmission of the electrode sheet.

[0041] The heating resistor 10 generates a temperature control range of 1500 ± 200 °C based on the Joule heat effect, and adjusts the temperature according to the recognition result of the recognition system. When the electrode sheet is transmitted to the heating station, a radiation-conduction composite heat transfer interface is formed between its lower surface and the heating resistor 10, causing a high-temperature cracking reaction of the adhesive layer, and the metal foil and electrode powder are separated from the surface of the electrode sheet.

[0042] A lower electrode powder scraper 11 is provided below the electrode sheet conveying plane between the third roller group unit 7 and the fourth roller group unit 8; an upper electrode powder scraper 12 is provided above the electrode sheet conveying plane behind the fourth roller group unit 8.

[0043] A cathode powder scraper 11 and the lower part of an anode powder scraper 12 are both provided with cathode powder collection boxes 13; a foil collection reel 14 is arranged at the rear side of the anode powder scraper 12; the foil after the cathode powder is peeled off contacts with the roller shaft of the foil collection reel 14, and the foil is wound by using the friction between the foil and the roller shaft; an opening for the cathode powder collection box 13 to be drawn out is arranged on the side wall of the main body support frame 1, and a handle is arranged on the outer side wall of the cathode powder collection box 13.

[0044] A drying oven 2 and the outer right side of the main body support frame 1 are each provided with a protective gas cylinder 15 which is respectively connected to the inside of the drying oven 2 and the main body support frame 1 through pipelines for continuously conveying protective gas; the protective gas cylinder 15 conveys inert gas, such as nitrogen or argon, to ensure that the inside of the drying oven 2 and the main body support frame 1 is in a low-oxygen environment and prevent the cathode powder from being oxidized. A baffle and a flexible sealing plate are arranged on the front side of the drying oven 2 to prevent the inert gas inside the drying oven 2 and the main body support frame 1 from overflowing from the material inlet; the flexible sealing plate allows the electrode sheet to enter the drying oven 2 from a single direction.

[0045] A temperature and air pressure monitoring controller and an X-ray fluorescence analyzer are arranged inside the drying oven 2 and the main body support frame 1; the temperature and air pressure monitoring controller conducts temperature and air pressure safety monitoring on the whole device and transmits the temperature and pressure signals to the display control system in the form of electrical signals. When the temperature or pressure is abnormal, the display control system will stop the operation of the whole device and take emergency measures.

[0046] The X-ray fluorescence analyzer identifies the surface material of the positive electrode; its model is PM450 / 350X or TrueX TCB. High-energy X-rays are emitted by an X-ray tube and irradiated on the surface of the positive electrode material. The high-energy photons interact with atoms, knock out inner-layer electrons and form holes. When outer-layer electrons jump to the inner layer to fill the holes, X-ray photons with specific energies are released. The detector converts the captured X-ray photons into electrical pulse signals, and then the multi-channel pulse analyzer generates an energy spectrum diagram according to the pulse energy, determines the electrode sheet material through the energy spectrum diagram, and correspondingly controls the heating temperature.

[0047] A power system 16 for providing power for the transmission device and a display control system for monitoring and controlling the internal operation conditions are also arranged outside the main body support frame 1. The power system 16 is arranged below the device, provides the electric energy and mechanical energy required by the device, and the overall structure layout of the equipment is compact and the space is reasonable.

[0048] The left and right side walls, the top wall and the bottom wall of the drying oven 2 are all provided with a heat insulation layer 17, and a set of heating tubes 18 are respectively arranged near the heat insulation layer 17 of the top wall and the bottom wall. The heat insulation layer 17 is closely attached to the left and right side walls, the top wall and the bottom wall of the drying oven 2, covering the heating tubes 18. The heat insulation layer 17 is made of a heat insulation material with a thermal resistance coefficient not less than 0.12 W / (m·K), which is used to construct a semi-closed heat conduction barrier to reduce the system heat loss; the heating tubes 18 are symmetrically arranged inside the top wall and the bottom wall to maintain the desorption temperature inside the system;

[0049] The transmission device is coupled to the drive shafts of the compression transmission wheel 4, the first roller group unit 5, the second roller group unit 6, the third roller group unit 7 and the fourth roller group unit 8 through a rigid linkage mechanism. The power system 16 is connected to the roller and the cam of the transmission device through a shaft, which is used to drive the operation of the roller and the cam, and control the continuous peeling and collection of the positive electrode current collector and the active material of the whole device.

[0050] A fan 19 with an air supply direction opposite to the feeding direction is arranged at the upper part of the rear end of the main body support frame 1. The fan 19 cools the metal foil in the 1500 °C heating area and guides the waste heat to the drying system to promote the pre-volatilization and degradation of the electrolyte on the surface of the electrode sheet.

[0051] The upper electrode powder scraper 12 forms an angle of 45±5° with the conveying direction of the electrode sheet, and a gap of 0.1-0.3 mm is formed between the cutting edge and the upper surface of the electrode sheet. After being peeled off, the electrode powder is guided along the inclined surface of the upper electrode powder scraper 12 and under the action of gravity acceleration, and is introduced into the electrode powder collection box 13 below the upper electrode powder scraper 12;

[0052] The lower electrode powder scraper 11 forms an angle of 30±5° with the vertical plane, and a gap of 0.1-0.3 mm is formed between the cutting edge and the lower surface of the electrode sheet. After being peeled off, the electrode powder is guided along the inclined surface of the lower electrode powder scraper 11 and under the action of gravity acceleration, and is introduced into the electrode powder collection box 13 below the lower electrode powder scraper 11;

[0053] The working method of the flash heat type rapid peeling and recycling device for the positive electrode current collector and the active material of the lithium battery of the present invention is as follows:

[0054] First, start the power system 16, and the electrode sheet enters the drying oven 2; the X-ray fluorescence analyzer emits X-rays to the electrode sheet, the detector captures the reflected X-ray photons, converts them into pulse signals, and determines the type of the electrode sheet according to the generated energy spectrum diagram. When it is detected that the electrode sheet is a lithium iron phosphate electrode sheet, set the heating temperature of the heating resistor to 1500-1600 °C, and set the cam to rotate at a speed of 60-100 rpm; when it is detected that the electrode sheet is a ternary electrode sheet, set the heating temperature of the heating resistor to 1400-1500 °C, and set the cam to rotate at a speed of 30-60 rpm;

[0055] The protective gas is introduced to form an inert atmosphere inside the drying oven 2 and inside the main body support frame 1;

[0056] The electrode sheet enters the drying oven 2 and is flattened under the action of the hollow backing plate 20 and the pressing transmission wheel 4. At the same time, the heating tube 18 heats up the temperature inside the drying oven 2, and the volatilized gas of the electrolyte of the electrode sheet is sucked and collected by the residual electrolyte vapor treatment air pump. After drying is completed, the electrode sheet enters the transmission device, and the guiding support plate 9 guides the electrode sheet from the first roller group unit 5 to the second roller group unit 6, and then enters the third roller group unit 7. The heating resistor 10 between the second roller group unit 6 and the third roller group unit 7 heats the electrode sheet. At the same time, the fan 19 cools the metal foil in the 1500 °C heating zone. Instantaneous heating avoids melting of the aluminum foil while promoting rapid decomposition of the binder, and guides the waste heat to the drying system to promote pre-volatilization and degradation of the electrolyte on the surface of the electrode sheet.

[0057] When the cam 701 on the upper part of the third roller group unit 7 rotates at a speed of 60 - 100 rpm, a mechanical oscillation with a period of 1.0 - 1.7 s will be formed on its outer edge, causing interfacial peeling of the electrode powder layer on the surface of the electrode sheet; the lower electrode powder scraper 11 between the third roller group unit 7 and the fourth roller group unit 8 scrapes off the electrode powder at the lower part of the electrode sheet. The lower electrode powder scraper 11 forms an angle of 30 ± 5° with the vertical plane, and the edge forms a gap of 0.1 - 0.3 mm with the lower surface of the electrode sheet. The peeled electrode powder is guided along the inclined surface of the lower electrode powder scraper 11 and under the action of gravity acceleration, and is introduced into the electrode powder collection box 13 below the lower electrode powder scraper 11; then it passes through the upper electrode powder scraper 12 at the rear of the fourth roller group unit 8; the upper electrode powder scraper 12 forms an angle of 45 ± 5° with the conveying direction of the electrode sheet, and the edge forms a gap of 0.1 - 0.3 mm with the upper surface of the electrode sheet. The peeled electrode powder is guided along the inclined surface of the upper electrode powder scraper 12 and under the action of gravity acceleration, and is introduced into the electrode powder collection box 13 below the upper electrode powder scraper 12; the aluminum foil after peeling the electrode powder contacts the roller shaft of the aluminum foil collection reel 14, and the aluminum foil is wound by using the friction between the aluminum foil and the roller shaft;

[0058] During operation, the temperature sensor air pressure monitoring and control system monitors the temperature and pressure on the surface of the electrode sheet and inside the device in real time, and realizes data analysis and feedback through the display control system. When it is detected that the temperature or pressure exceeds the set threshold, the control center triggers the emergency device, immediately cuts off the power system 16 and terminates the operation of the equipment, and at the same time starts the forced heat dissipation mechanism to ensure the operation safety under high-temperature conditions.

[0059] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "top", "bottom", "lateral", "vertical", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0061] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rapid stripping and recycling device for the positive current collector and active material of a flash heat lithium battery, characterized in that, It comprises a transversely arranged main body support frame (1), a drying box (2) is arranged at the front end of the main body support frame (1), and a residual electrolyte vapor treatment air pump (3) is arranged on the right side of the drying box (2); A continuous transmission device is provided in the drying box (2) extending from the front end to the middle of the main support frame (1); The part of the transmission device located in the drying box (2) comprises a hollow pad (20) arranged parallel to the bottom surface of the drying box (2), and a plurality of groups of compression transmission wheels (4) are arranged on the upper part of the hollow pad (20); The part of the transmission device located in the main support frame (1) comprises a first roller group unit (5), a second roller group unit (6) and a third roller group unit (7) arranged equidistantly in a transverse direction, and a fourth roller group unit (8) arranged at a lower rear side of the third roller group unit (7); The first roller assembly unit (5), the second roller assembly unit (6) and the fourth roller assembly unit (8) each comprise two cylindrical rollers arranged in parallel in the longitudinal direction, with a gap reserved between the two rollers; the third roller assembly unit (7) comprises a cylindrical roller at the bottom and a cam (701) at the top; A guide support plate (9) whose upper surface is flush with the hollow pad (20) is provided between the first roller assembly unit (5) and the second roller assembly unit (6) and between the second roller assembly unit (6) and the third roller assembly unit (7); a mounting groove is preset in the middle of the guide support plate (9) between the second roller assembly unit (6) and the third roller assembly unit (7), and a heating resistor (10) is installed in the mounting groove; A lower electrode powder scraper (11) is arranged below the electrode sheet conveying plane between the third roller group unit (7) and the fourth roller group unit (8); an upper electrode powder scraper (12) is arranged above the electrode sheet conveying plane on the rear side of the fourth roller group unit (8); A powder collecting box (13) is provided at the lower part of the lower powder scraper (11) and the upper powder scraper (12); an aluminum foil collecting reel (14) is provided at the rear side of the upper powder scraper (12); The drying box (2) and the main support frame (1) are each provided with a protective gas cylinder (15) on the right side of the outside thereof, which is connected to the inside of the drying box (2) and the main support frame (1) through a pipeline and is used for continuously conveying protective gas; The drying box (2) and the main support frame (1) are provided with a temperature and air pressure monitoring controller and an X-ray fluorescence analyzer; The main support frame (1) is also provided with a power system (16) for providing power to the transmission device and a display control system for monitoring and controlling the internal operation status outside.

2. The rapid stripping and recycling device for the positive current collector and active material of the flash heat lithium battery according to claim 1, wherein, The left and right side walls, the top wall and the bottom wall of the drying box (2) are all provided with a heat preservation layer (17), and a group of heating pipes (18) are respectively provided near the heat preservation layer (17) of the top wall and the bottom wall.

3. The rapid stripping and recycling device for the positive current collector and active material of the flash heat type lithium battery according to claim 1, characterized in that, The transmission device couples the drive shafts of the compression transmission wheel (4), the first roller group unit (5), the second roller group unit (6), the third roller group unit (7) and the fourth roller group unit (8) through a rigid linkage mechanism.

4. The flash-heat type lithium battery positive electrode current collector and active material rapid stripping and recycling device according to claim 1, wherein A fan (19) whose air supply direction is opposite to the material supply direction is arranged at the upper rear end of the main support frame (1).

5. The rapid stripping and recycling device for the positive current collector and active material of a flash heat lithium battery according to claim 1, wherein, The upper pole powder scraper (12) is inclined at an angle of 45 ± 5° with respect to the electrode sheet conveying direction, and a gap of 0.1 - 0.3 mm is formed between the cutting edge and the upper surface of the electrode sheet.

6. The rapid stripping and recycling device for the positive current collector and active material of the flash heat lithium battery according to claim 1, characterized in that, The lower pole powder scraper (11) is inclined at an angle of 30 ± 5° with respect to the vertical plane, and a gap of 0.1 - 0.3 mm is formed between the cutting edge and the lower surface of the electrode sheet.

7. The rapid stripping and recycling device for the positive electrode current collector and active material of the flash heat lithium battery according to claim 1, characterized in that The cam (701) is a cylindrical eccentric cam.

8. The rapid stripping and recycling device for the cathode current collector and active material of the flash heat type lithium battery according to claim 1, wherein The gap between the roller wheels is an elastic clamping gap of 0.1 - 2 mm.

9. The rapid stripping and recycling device for the cathode current collector and active material of a flash-heat lithium battery as described in claim 1, wherein, Multiple groups of the pressing and conveying wheels (4) are arranged at equal distances and oppositely on the left and right sides of the hollow backing plate (20).

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