Cathode material coating device
By combining ultrasonic cleaning and drying devices, the problem of dust affecting adhesion and low mixing efficiency in the cathode material coating device is solved, achieving efficient dust removal and mixing, and improving battery performance.
Patent Information
- Application Number
- CN202520044371.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Existing cathode material coating devices cannot perform cleaning pretreatment to remove surface dust from cathode materials, which affects the adhesion of coating materials and results in low mixing efficiency.
Dust is removed and efficiently mixed by using ultrasonic cleaning and a water-filtering screen, combined with an ultrasonic stirring and drying device. Ultrasonic transducers generate ultrasonic waves in the solution to accelerate mixing, and the drying device dries the solution onto the material surface.
It effectively removes dust from the surface of the cathode material, improves the adhesion of the coating material, and enhances mixing efficiency, thus ensuring the electrochemical performance and cycle stability of the battery.
Smart Images
Figure CN223858146U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a positive electrode material processing technical field, concretely relates to a positive electrode material coating device. BACKGROUND
[0002] The ternary positive electrode material of lithium ion battery is lithium nickel cobalt manganese oxide, at present, the main role of lithium battery positive electrode material coating is as a protective layer to isolate the direct contact of electrolyte and active electrode material, greatly reduces a series of side reactions, in addition, through screening suitable coating material, lithium ion, electron conductivity and thermal stability are significantly improved, therefore, good rate and cycle performance are obtained.
[0003] The positive electrode material coating device is used by placing the positive electrode raw material into the coating solution for stirring, so that the positive electrode raw material and the coating solution are fully mixed, and drying is carried out to coat the surface of the positive electrode raw material, but dust is adhered to the surface of the positive electrode raw material during transportation and storage, the existing positive electrode material coating device cannot clean and pretreat the positive electrode material, the existence of dust may affect the adhesion between the coating material and the positive electrode material, thereby affecting the electrochemical performance and cycle stability of the battery, and the mixing efficiency is low when mixing usually adopts the stirring mode, therefore, the problem that the existing positive electrode material coating device cannot clean and pretreat the surface adhered dust of the positive electrode material during use, and the mixing efficiency is low when mixing usually adopts the stirring mode needs to be solved. UTILITY MODEL CONTENTS
[0004] In view of the above problems existing in the prior art positive electrode material coating device, the utility model is proposed.
[0005] Therefore, the utility model aims at providing a positive electrode material coating device, which solves the problem that the existing positive electrode material coating device cannot clean and pretreat the surface adhered dust of the positive electrode material during use, and the mixing efficiency is low when mixing usually adopts the stirring mode.
[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:
[0007] A positive electrode material coating device, including base, one end of the top of the base is fixedly connected with cleaning bin, the other end of the top of the base is fixedly connected with mixing bin, the output of the cleaning bin and the input of the mixing bin are fixedly connected, the top of the cleaning bin is fixedly connected with electric valve, the top of the electric valve is fixedly connected with feeding cleaning bin, the side wall of the feeding cleaning bin is fixedly connected with water inlet, the inner side wall of the cavity of the cleaning bin is fixedly connected with first ultrasonic transducer, the top of the cavity of the cleaning bin is fixedly connected with first water filter screen, one end of the side wall of the cleaning bin is fixedly connected with drain connecting pipe, the cavity of the cleaning bin is fixedly connected with U-shaped drying device, the side wall of the mixing bin is fixedly connected with coating solution pipe, the top of the cavity of the mixing bin is fixedly connected with second ultrasonic transducer, the bottom of the mixing bin is fixedly connected with drying device through being provided with separation mechanism, the side wall of the mixing bin is fixedly connected with control panel end, the top of the mixing bin is fixedly connected with ultrasonic generator, the ultrasonic generator is electrically connected with the first ultrasonic transducer and the second ultrasonic transducer, the top of the drying device is provided with energy supply mechanism fixedly connected with the U-shaped drying device.
[0008] Preferably, the separation mechanism comprises a second water filter screen, a drain valve and a discharge valve, one end of the bottom of the mixing bin is fixedly connected with the second water filter screen by being provided with an opening, one end of the bottom of the mixing bin is fixedly connected with the drain valve, the drain valve corresponds in position to the second water filter screen, the other end of the bottom of the mixing bin is fixedly connected with the discharge valve, and the output end of the discharge valve is fixedly connected with the input end of the drying device.
[0009] Preferably, the energy supply mechanism comprises a hot air machine and a connecting pipeline, the top of the drying device is fixedly connected with the hot air machine, and both ends of the output end of the hot air machine are fixedly connected with the connecting pipeline, one end of one of the connecting pipelines is fixedly connected with the input end of the U-shaped drying device, and one end of the other connecting pipeline is fixedly connected with the input end of the drying device.
[0010] Preferably, the U-shaped drying device is a U-shaped hollow plate, and a plurality of spray holes are formed in the inner side walls of both ends of the U-shaped drying device.
[0011] Further, the drying device comprises a drying bin, a sealing door and a drying plate, the side wall of the drying bin is rotatably connected with the sealing door through a hinge, the inner side wall of the cavity of the drying bin is fixedly connected with the drying plate, and the input end of the drying plate is fixedly connected with one end of the other connecting pipeline.
[0012] Preferably, the side wall of the sealing door is fixedly connected with a bolt, the side wall of the drying bin is fixedly connected with a socket, and one end of the bolt is inserted into the socket.
[0013] In the above technical scheme, the technical effects and advantages of the present application are provided:
[0014] 1. The utility model discloses, utilize the first ultrasonic transducer of setting in ultrasonic generator one end electric connection, produce ultrasonic wave in water and clean positive electrode material, utilize the first water filter screen net of setting in with electric valve position corresponds, to separate the material and water source after cleaning, utilize the U type drying device of setting in the cleaning bin cavity, to the material after cleaning is carried out quick drying and is convenient for the next step and mixes.
[0015] 2. The utility model discloses, utilize the second ultrasonic transducer of setting in the mixing bin cavity, through producing ultrasonic wave in solution makes and accelerates the mixing efficiency of coating solution and positive electrode material and mixes fully, utilize the separation mechanism of setting and separate the positive electrode material of extra solution, and the positive electrode material after coating falls into drying device and is dried, and solution is dry solid on the surface of positive electrode material.
[0016] 3. The utility model discloses, utilize the drying board of setting in through connecting pipeline and hot blast machine connects, to the positive electrode material after coating in drying bin cavity drying, make coating solution dry solid on the surface of positive electrode material, utilize the sealing door of setting, through pulling out the bolt and separating with socket, to make sealing door lose the limit and be convenient for opening and taking out the positive electrode material after coating. DRAWINGS
[0017] In order to make the technical scheme in the embodiments of the present application or the prior art clearer, the accompanying drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.
[0018] Figure 1 It is the front structure schematic view of the utility model;
[0019] Figure 2 It is the front structure sectional view of the utility model;
[0020] Figure 3 It is the drying device side sectional view of the utility model;
[0021] Figure 4 It is the U type drying device three-dimensional schematic view of the utility model.
[0022] Explanation of the drawings:
[0023] 1. Base; 2. Cleaning chamber; 3. Mixing chamber; 4. Electric valve; 5. Feeding and cleaning chamber; 6. Water inlet; 7. First ultrasonic transducer; 8. First water filter screen; 9. Drainage connection pipe; 10. U-shaped drying device; 11. Coated solution inlet; 12. Second ultrasonic transducer; 13. Drying device; 14. Control panel end; 15. Ultrasonic generator; 16. Second water filter screen; 17. Drain valve; 18. Discharge valve; 19. Hot air blower; 20. Connecting pipe; 21. Spray nozzle; 22. Drying chamber; 23. Sealing door; 24. Drying plate; 25. Pin; 26. Socket. Detailed Implementation
[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0025] This utility model discloses a positive electrode material coating device.
[0026] This utility model provides, for example Figures 1-4The positive material coating device shown, including the base 1, the top of the base 1 is fixedly connected with the cleaning bin 2, the top of the base 1 is fixedly connected with the mixing bin 3, the output of the cleaning bin 2 and the input of the mixing bin 3 are fixedly connected, the top of the cleaning bin 2 is fixedly connected with the electric valve 4, the top of the electric valve 4 is fixedly connected with the feeding cleaning bin 5, the side wall of the feeding cleaning bin 5 is fixedly connected with the water inlet pipe 6, the inner side wall of the cavity of the cleaning bin 2 is fixedly connected with the first ultrasonic vibrator 7, the top of the cavity of the cleaning bin 2 is fixedly connected with the first water filter screen 8, one end of the side wall of the cleaning bin 2 is fixedly connected with the drain connecting pipe 9, the cavity of the cleaning bin 2 is fixedly connected with the U-shaped drying device 10, the side wall of the mixing bin 3 is fixedly connected with the coating solution pipe 11, the top of the cavity of the mixing bin 3 is fixedly connected with the second ultrasonic vibrator 12, the bottom of the mixing bin 3 is fixedly connected with the drying device 13 through the separation mechanism, the side wall of the mixing bin 3 is fixedly connected with the control panel end 14, the top of the mixing bin 3 is fixedly connected with the ultrasonic generator 15, the ultrasonic generator 15 is electrically connected with the first ultrasonic vibrator 7 and the second ultrasonic vibrator 12, the top of the drying device 13 is provided with the energy supply mechanism fixedly connected with the U-shaped drying device 10, the feeding cleaning bin 5 fixedly connected with the electric valve 4 arranged at the top of the cleaning bin 2 is used to put the positive material into the feeding cleaning bin 5, the water inlet pipe 6 is connected with the water source, the first ultrasonic vibrator 7 electrically connected with the ultrasonic generator 15 generates ultrasonic waves through the water source to clean the positive material, after cleaning, the electric valve 4 is opened, the water source and the positive material are discharged and separated through the first water filter screen 8, the positive material falls through the U-shaped drying device 10 for rapid drying, falls into the mixing bin 3, the water source is discharged through the drain connecting pipe 9, the coating solution is poured into the coating solution pipe 11 arranged to mix with the positive material, the second ultrasonic vibrator 12 generates ultrasonic waves in the solution to accelerate the mixing efficiency of the coating solution and the positive material, the excess solution is separated from the positive material through the separation mechanism, the coated positive material falls into the drying device 13 for drying, so that the solution is dried and adhered to the surface of the positive material, the control panel end 14 is arranged to facilitate the control of the device, thereby solving the problem that the existing positive material coating device cannot clean the positive material, the dust adhered to the surface of the positive material affects the adhesion of the coating material, and the mixing efficiency is low when mixing.
[0027] In order to separate the coated positive material and the excess solution, Figure 1 and 2As shown, the separation mechanism includes a second water filter screen 16, a drain valve 17, and a discharge valve 18. The second water filter screen 16 is fixedly connected to one bottom end of the mixing chamber 3 through an opening. The drain valve 17 is fixedly connected to one bottom end of the mixing chamber 3, and the position of the drain valve 17 corresponds to that of the second water filter screen 16. The discharge valve 18 is fixedly connected to the other bottom end of the mixing chamber 3. The output end of the discharge valve 18 is fixedly connected to the input end of the drying device 13. By using the drain valve 17, after opening, the excess solution is discharged through the connection pipe. The second water filter screen 16 will intercept the positive electrode material in the solution. After opening the discharge valve 18, the coated positive electrode material falls into the drying device 13 for further processing.
[0028] In order to supply a heat source to the U-shaped drying device 10 and the drying device 13, such as Figures 1-3 As shown, the power supply mechanism includes a hot air blower 19 and connecting pipes 20. The hot air blower 19 is fixedly connected to the top of the drying device 13. Both ends of the hot air blower 19 are fixedly connected to connecting pipes 20. One end of one connecting pipe 20 is fixedly connected to the input end of the U-shaped drying device 10, and the other end of the connecting pipe 20 is fixedly connected to the input end of the drying device 13. The hot air blower 19 is connected to the U-shaped drying device 10 and the drying device 13 respectively through the connecting pipes 20 at both ends, thereby supplying heat to the U-shaped drying device 10 and the drying device 13.
[0029] In order for the U-shaped drying device 10 to achieve the spraying function, such as Figure 2 and 4 As shown, the U-shaped drying device 10 is a U-shaped hollow plate with multiple spray holes 21 on the inner walls at both ends. By using the U-shaped drying device 10 which is a U-shaped hollow plate with multiple spray holes 21 on the inner walls at both ends, the U-shaped drying device 10 can achieve the spraying function.
[0030] In order for the drying device 13 to dry the coated positive electrode material, such as Figures 1-3 As shown, the drying device 13 includes a drying chamber 22, a sealing door 23, and a drying plate 24. The side wall of the drying chamber 22 is rotatably connected to the sealing door 23 via a hinge. The inner side wall of the drying chamber 22 is fixedly connected to the drying plate 24. The input end of the drying plate 24 is fixedly connected to one end of another connecting pipe 20. The drying plate 24 is used to dry the coated positive electrode material falling into the drying chamber 22, so that the coating solution is dried and solidified on the surface of the positive electrode material. The sealing door 23 is used to facilitate opening and removing the coated positive electrode material.
[0031] In order to limit the position of the sealing door 23 after it is rotated and closed, such as Figure 1 and 3As shown, the side wall of the sealing door 23 is fixedly connected with a plug 25, the side wall of the drying bin 22 is fixedly connected with a socket 26, one end of the plug 25 is inserted with the socket 26, the plug 25 is arranged, and the sealing door 23 is limited after being rotated and closed through the socket 26, and the coated positive material is conveniently taken out by opening.
[0032] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the present application.
Claims
1. A positive electrode material coating device comprising a base (1), characterized in that, The top end of the base (1) is fixedly connected with a cleaning bin (2), the other end of the top of the base (1) is fixedly connected with a mixing bin (3), the output of the cleaning bin (2) is fixedly connected with the input of the mixing bin (3), the top of the cleaning bin (2) is fixedly connected with an electric valve (4), the top of the electric valve (4) is fixedly connected with a feeding cleaning bin (5), the side wall of the feeding cleaning bin (5) is fixedly connected with a water inlet pipe (6), the inner side wall of the cavity of the cleaning bin (2) is fixedly connected with a first ultrasonic transducer (7), the top of the cavity of the cleaning bin (2) is fixedly connected with a first water filtering screen (8), one end of the side wall of the cleaning bin (2) is fixedly connected with a drainage connecting pipe (9), the cavity of the cleaning bin (2) is fixedly connected with a U-shaped drying device (10), the side wall of the mixing bin (3) is fixedly connected with a coating solution pipe (11), the top of the cavity of the mixing bin (3) is fixedly connected with a second ultrasonic transducer (12), the bottom of the mixing bin (3) is fixedly connected with a drying device (13) through a separation mechanism, the side wall of the mixing bin (3) is fixedly connected with a control panel end (14), the top of the mixing bin (3) is fixedly connected with an ultrasonic generator (15), the ultrasonic generator (15) is electrically connected with the first ultrasonic transducer (7) and the second ultrasonic transducer (12), the top of the drying device (13) is provided with an energy supply mechanism fixedly connected with the U-shaped drying device (10).
2. The positive electrode material coating device according to claim 1, wherein The separation mechanism comprises a second water filtering screen (16), a drainage valve (17) and a discharge valve (18), one end of the bottom of the mixing bin (3) is fixedly connected with the second water filtering screen (16) through an opening, one end of the bottom of the mixing bin (3) is fixedly connected with the drainage valve (17), the drainage valve (17) corresponds to the position of the second water filtering screen (16), the other end of the bottom of the mixing bin (3) is fixedly connected with the discharge valve (18), the output end of the discharge valve (18) is fixedly connected with the input end of the drying device (13).
3. The positive electrode material coating device according to claim 1, wherein The energy supply mechanism comprises a hot air blower (19) and a connecting pipe (20), the top of the drying device (13) is fixedly connected with the hot air blower (19), the two end output ends of the hot air blower (19) are fixedly connected with the connecting pipes (20), one end of one of the connecting pipes (20) is fixedly connected with the input end of the U-shaped drying device (10), one end of the other connecting pipe (20) is fixedly connected with the input end of the drying device (13).
4. The positive electrode material coating device according to claim 1, wherein The U-shaped drying device (10) is a U-shaped hollow plate, and a plurality of spray holes (21) are formed in the inner side walls of the two ends.
5. The positive electrode material coating device according to claim 1, wherein The drying device (13) comprises a drying bin (22), a sealing door (23) and a drying plate (24), the side wall of the drying bin (22) is rotatably connected with the sealing door (23) through a hinge, the inner side wall of the cavity of the drying bin (22) is fixedly connected with the drying plate (24), the input end of the drying plate (24) is fixedly connected with one end of the other connecting pipe (20).
6. The positive electrode material coating device according to claim 5, wherein The side wall of the sealing door (23) is fixedly connected with a bolt (25), the side wall of the drying bin (22) is fixedly connected with a socket (26), and one end of the bolt (25) is inserted into the socket (26).