Lithium battery positive and negative electrode raw material stirring device

Abstract

The utility model relates to a lithium battery anode and cathode raw material stirring device, which belongs to the technical field of lithium battery equipment and comprises a bottom plate and a mixing box, a fixing seat is arranged at the top of the bottom plate, and a hydraulic push rod and a circulating component are arranged in the fixing seat. The device disclosed by the utility model has the beneficial effects that by arranging the circulating assembly and the mixing assembly, a switch of the material pump is turned on, so that raw materials at the bottom in the mixing box enter the conveying pipe through the material pumping pipe and are driven by the conveying pump, the raw materials enter the backflow pipe and then enter the mixing barrel, and a switch of the motor II is turned on; and after the materials are discharged through the through holes and are remixed through the mixing blades, the raw materials can be conveyed into the cylindrical box through the spiral conveying blades under the action of the flowing materials and return to the stirring box again for secondary stirring, so that the raw materials are not easy to precipitate at the bottom, and the stirring and mixing are more efficient.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery equipment technology, specifically a stirring device for positive and negative electrode raw materials of lithium batteries. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the positive / negative electrode materials and a non-aqueous electrolyte solution. The lithium metal battery was first proposed and studied by Gilbert N. Lewis in 1912. In the 1970s, MS Whittingham proposed and began researching lithium-ion batteries. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental control.

[0003] Lithium metal batteries generally use manganese dioxide as the positive electrode material, lithium metal or its alloy metal as the negative electrode material, and a non-aqueous electrolyte solution. The stirring and mixing of the positive and negative electrode materials is a key process in the preparation of lithium batteries, which directly affects the performance and lifespan of the battery.

[0004] Existing lithium battery positive and negative electrode material mixing devices still have the following drawbacks: low mixing efficiency, inability to effectively mix the materials thoroughly, resulting in uneven mixing and affecting battery performance. In particular, material sedimentation is prone to occur at the bottom of the mixing tank, which makes it impossible to fully mix the materials for use. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a lithium battery positive and negative electrode material stirring device, comprising a circulation component and a mixing component. This device solves the problems of low stirring efficiency of lithium battery positive and negative electrode materials, which prevents effective and thorough mixing, leading to uneven mixing and affecting battery performance. In particular, it addresses the issue of material sedimentation at the bottom of the stirring tank, further hindering the proper mixing and use of the materials.

[0006] The technical solution of this utility model is: a stirring device for positive and negative electrode raw materials of lithium battery, including a base plate and a mixing box. A fixed seat is provided on the top of the base plate. A hydraulic push rod and a circulation component are provided inside the fixed seat. An installation box is fixedly installed at the output end of the hydraulic push rod. A cylindrical box is connected to one side of the installation box. A stirring box is provided at the bottom of the installation box. A stirring mechanism is provided inside the cylindrical box, the stirring box and the mixing box. A mixing component is provided inside the installation box.

[0007] The circulation assembly includes a material extraction pipe, a conveying pump, a connector, a conveying pipe, and a return pipe. The mixing assembly includes a second motor, a mixing cylinder, mixing blades, a fixed frame, and a spiral conveying blade. The second motor is fixedly installed on the top of the mounting box, and its output end is fixedly connected to the mixing cylinder. The mixing blades are fixedly installed on the outside of the mixing cylinder. The side wall of the mixing cylinder has a through hole, and the bottom of the mixing cylinder is connected to the top of the return pipe. The fixed frame is fixedly installed on the upper and lower inner walls of the mounting box. The two ends of the spiral conveying blade are respectively movably inserted into the inside of the fixed frame, and one end of the fixed frame has an opening.

[0008] Furthermore, one end of the extraction pipe is inserted into the interior of the mixing tank and extends to the bottom of the mixing tank. The top end of the extraction pipe and the bottom end of the conveying pipe are detachably installed through a connector. The conveying pump is fixedly installed inside the fixed base. The input end of the conveying pump is connected to the top end of the conveying pipe, and the output section of the conveying pump is connected to the bottom end of the return pipe. The top end of the return pipe is fixedly connected to the bottom wall of the mounting box.

[0009] Furthermore, a base is provided at the bottom of the mixing box, and rollers are provided inside the base. A limit frame is provided on one side of the fixed seat, and the outer wall of the mixing box contacts the limit frame.

[0010] Furthermore, the stirring mechanism includes a motor, a stirring shaft, stirring blades, a stirring frame, a stirring assembly, a stirring frame, and a stirring assembly. The motor is fixedly installed on the top of the cylindrical box, and the output end of the motor is fixedly connected to the stirring shaft. The stirring blades are fixedly installed on the outside of the stirring shaft and located inside the cylindrical box and the stirring chamber.

[0011] Furthermore, both stirring frame one and stirring frame two are fixedly installed outside the stirring shaft and located inside the mixing box. Stirring component one is movably inserted into the interior of the upper and lower walls of stirring frame one, and stirring component two is movably inserted into the interior of the left and right walls of stirring frame two.

[0012] Furthermore, a feed pipe is provided inside the side wall of the mixing tank, a top plate is provided at the bottom of the mixing tank, an outer edge plate is provided at the top of the mixing tank, a sealing plate is provided at the top of the outer edge plate, the outer edge plate is in contact with the top plate, and the sealing plate is embedded inside the top plate, and a counterweight is provided inside the mounting box.

[0013] This utility model provides an improved stirring device for positive and negative electrode materials of lithium batteries, which has the following improvements and advantages compared with the prior art:

[0014] The system includes a circulation component and a mixing component. When the material pump is turned on, the raw material at the bottom of the mixing tank enters the conveying pipe through the extraction pipe. Driven by the conveying pump, the raw material enters the return pipe and then the mixing drum. Turning on the second motor causes the mixing drum to rotate. The material is then discharged through the through-hole and remixed by the mixing blades. Under the action of the flowing material, the material is conveyed by the spiral conveyor blades to the cylindrical box, returning to the mixing tank for secondary mixing. This prevents the raw material from settling at the bottom and facilitates more efficient mixing. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a front view schematic diagram of the present invention;

[0019] Figure 4 This is a three-dimensional schematic diagram of the stirring mechanism of this utility model;

[0020] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Fixed seat; 3. Hydraulic push rod; 4. Mounting box; 5. Cylindrical box; 6. Mixing box; 7. Top plate; 8. Outer edge plate; 9. Mixing box; 10. Motor 1; 11. Mixing blade; 12. Feed pipe; 13. Mixing shaft; 15. Mixing frame 1; 16. Mixing assembly 1; 17. Mixing frame 2; 18. Mixing assembly 2; 19. Base; 20. Roller; 21. Connector; 22. Conveying pipe; 23. Conveying pump; 24. Return pipe; 25. Motor 2; 26. Counterweight; 27. Mixing cylinder; 28. Mixing blade; 29. ​​Fixed frame; 30. Spiral conveyor blade. Detailed Implementation

[0021] The following will be combined with the appendix Figures 1 to 4 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] This utility model provides an improved stirring device for positive and negative electrode materials of lithium batteries, such as... Figure 1-4As shown in the figure, it includes a base plate 1 and a mixing box 9. A fixed seat 2 is provided on the top of the base plate 1. A hydraulic push rod 3 and a circulation assembly are provided inside the fixed seat 2. An installation box 4 is fixedly installed at the output end of the hydraulic push rod 3. A cylindrical box 5 is connected to one side of the installation box 4. A mixing box 6 is provided at the bottom of the installation box 4. A stirring mechanism is provided inside the cylindrical box 5, the mixing box 6 and the mixing box 9. A mixing assembly is provided inside the installation box 4.

[0023] The circulation assembly includes a suction pipe, a conveying pump 23, a connector 21, a conveying pipe 22, and a return pipe 24. The mixing assembly includes a second motor 25, a mixing cylinder 27, mixing blades 28, a fixing frame 29, and a spiral conveying blade 30. The second motor 25 is fixedly installed on the top of the mounting box 4, and its output end is fixedly connected to the mixing cylinder 27. The mixing blades 28 are fixedly installed on the outside of the mixing cylinder 27. The side wall of the mixing cylinder 27 has a through hole, and the bottom of the mixing cylinder 27 is connected to the top of the return pipe 24. The fixing frame 29 is fixedly installed on the upper and lower inner walls of the mounting box 4. The two ends of the spiral conveying blade 30 are movably inserted into the inside of the fixing frame 29, and one end of the fixing frame 29 has an opening. One end of the suction pipe is inserted into the inside of the mixing box 9 and extends to the bottom of the mixing box 9. The top end of the suction pipe and the bottom end of the conveying pipe 22 are detachably installed through the connector 21. The conveying pump 23 is fixedly installed inside the fixing seat 2. The input of the conveying pump 23 is... The top end of the conveying pipe 22 is connected to the top end of the conveying pump 23, and the bottom end of the return pipe 24 is connected to the top end of the return pipe 24. The top end of the return pipe 24 is fixedly connected to the bottom wall of the mounting box 4. When the material pump is turned on, the raw material at the bottom of the mixing box 9 enters the conveying pipe 22 through the suction pipe. Driven by the conveying pump 23, the raw material enters the return pipe 24 and then enters the mixing cylinder 27. When the motor 25 is turned on, the mixing cylinder 27 rotates and is discharged through the through hole. After being remixed by the mixing blades 28, the raw material is conveyed to the cylindrical box 5 by the spiral conveying blades 30 under the action of the flowing material. It then returns to the mixing box 6 for secondary mixing, making it less likely for the raw material to settle at the bottom and facilitating more efficient mixing. This achieves efficient and uniform mixing of the raw material. The circulation system is used to suck up the raw material and send it into the mixing box 9 for efficient mixing, ultimately achieving uniform mixing of the raw material. The return pipe 24 is made of a stretchable hose.

[0024] The bottom of the mixing box 9 is provided with a base 19, and the inside of the base 19 is provided with rollers 20. A limit frame is provided on one side of the fixed seat 2. The outer wall of the mixing box 9 is in contact with the limit frame. The use of the limit frame facilitates the installation and positioning movement of the mixing box 9. The device is connected to an external power supply to provide electrical energy. The device is connected to an external controller, which is electrically connected to the motor, hydraulic push rod 3 and delivery pump 23.

[0025] The stirring mechanism includes a motor 10, a stirring shaft 13, stirring blades 11, a stirring frame 15, a stirring assembly 16, a stirring frame 17, and a stirring assembly 18. The motor 10 is fixedly installed on the top of the cylindrical box 5, and the output end of the motor 10 is fixedly connected to the stirring shaft 13. The stirring blades 11 are fixedly installed on the outside of the stirring shaft 13 and located inside the cylindrical box 5 and the mixing box 6. The stirring frame 15 and the stirring frame 17 are both fixedly installed on the outside of the stirring shaft 13 and located inside the mixing box 9. The stirring assembly 16 is movably inserted into the upper and lower walls of the stirring frame 15, and the stirring assembly 18 is movably inserted into the left and right walls of the stirring frame 17. The stirring shaft 13 is driven by the motor, and the stirring blades 11 stir the mixture in the mixing box 9. At the same time, the stirring frame and stirring assembly are flexibly combined to achieve more effective and precise stirring and tumbling of the mixture, thereby achieving a better mixing effect. The stirring blades 11 can continuously stir the raw materials after reflux, using stirring in different horizontal and vertical directions, which greatly improves the stirring efficiency.

[0026] The mixing tank 6 has a feed pipe 12 inside its side wall, a top plate 7 at the bottom, and an outer edge plate 8 at the top of the mixing tank 9. A sealing plate is installed on the top of the outer edge plate 8, which contacts the top plate 7. The sealing plate is embedded inside the top plate 7. A counterweight 26 is installed inside the mounting box 4. In use, the counterweight 26 helps the mounting box 4 to remain level and prevents it from tilting due to prolonged load. In use, the switch of the hydraulic push rod 3 is turned on, which causes the mounting box 4 to move the mixing tank 6 upward, thereby separating the mixing tank 6 from the mixing tank 9. The mixing tank 9 can then be moved to discharge the raw materials, which can be fed through the feed pipe 12. The outer edge plate 8 with a sealing plate provides a better sealing effect.

[0027] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lithium battery positive and negative electrode raw material stirring device, comprising a bottom plate (1) and a mixing box (9), characterized in that: The top of the bottom plate (1) is provided with a fixing seat (2), the inside of the fixing seat (2) is provided with a hydraulic push rod (3) and a circulating assembly, the output end of the hydraulic push rod (3) is fixedly installed with a mounting box (4), one side of the mounting box (4) is communicatedly installed with a cylindrical box (5), the bottom of the mounting box (4) is provided with a stirring box (6), the inside of the cylindrical box (5), the stirring box (6) and a mixing box (9) is provided with a stirring mechanism, the inside of the mounting box (4) is provided with a mixing assembly; The circulating assembly comprises a material suction pipe, a conveying pump (23), a connecting piece (21), a conveying pipe (22) and a backflow pipe (24), the mixing assembly comprises a motor two (25), a mixing cylinder (27), a mixing blade (28), a fixing frame (29) and a spiral conveying blade (30), the motor two (25) is fixedly installed at the top of the mounting box (4), the output end of the motor two (25) is fixedly connected with the mixing cylinder (27), the mixing blade (28) is fixedly installed outside the mixing cylinder (27), the inside of the side wall of the mixing cylinder (27) is provided with a through hole, the bottom of the mixing cylinder (27) is communicated with the top end of the backflow pipe (24), the fixing frame (29) is fixedly installed on the upper and lower inner walls of the mounting box (4), the two ends of the spiral conveying blade (30) are movably inserted into the inside of the fixing frame (29), and one end of the fixing frame (29) is provided with an opening.

2. The lithium battery positive and negative electrode raw material stirring device according to claim 1, characterized in that: One end of the material suction pipe is inserted into the inside of the mixing box (9) and extends to the bottom of the mixing box (9), the top end of the material suction pipe is detachably installed with the bottom end of the conveying pipe (22) through the connecting piece (21), the conveying pump (23) is fixedly installed in the inside of the fixing seat (2), the input end of the conveying pump (23) is communicated with the top end of the conveying pipe (22), the output end of the conveying pump (23) is communicated with the bottom end of the backflow pipe (24), and the top end of the backflow pipe (24) is fixedly connected with the bottom wall of the mounting box (4).

3. The lithium battery positive and negative electrode raw material stirring device according to claim 1, characterized in that: The bottom of the mixing box (9) is provided with a base (19), the inside of the base (19) is provided with a roller (20), one side of the fixing seat (2) is provided with a limiting frame, and the outer wall of the mixing box (9) is in contact with the limiting frame.

4. The lithium battery positive and negative pole raw material stirring device according to claim 1, characterized in that: The stirring mechanism comprises a motor one (10), a stirring shaft (13), a stirring blade (11), a stirring frame one (15), a stirring assembly one (16), a stirring frame two (17) and a stirring assembly two (18), the motor one (10) is fixedly installed at the top of the cylindrical box (5), the output end of the motor one (10) is fixedly connected with the stirring shaft (13), the stirring blade (11) is fixedly installed outside the stirring shaft (13) and located in the inside of the cylindrical box (5) and the stirring box (6).

5. The lithium battery positive and negative pole raw material stirring device according to claim 4, characterized in that: The stirring frame one (15) and the stirring frame two (17) are both fixedly installed outside the stirring shaft (13) and located on the inside of the mixing box (9), the stirring assembly one (16) is movably inserted into the inside of the upper and lower walls of the stirring frame one (15), and the stirring assembly two (18) is movably inserted into the inside of the left and right walls of the stirring frame two (17).

6. The lithium battery positive and negative pole raw material stirring device according to claim 1, characterized in that: The side wall of the stirring box (6) is internally provided with a feeding pipe (12), the bottom of the stirring box (6) is provided with a top plate (7), the top of the mixing box (9) is provided with an outer edge plate (8), the top of the outer edge plate (8) is provided with a sealing plate, the outer edge plate (8) is in contact with the top plate (7), and the sealing plate is internally embedded in the inside of the top plate (7), and the inside of the mounting box (4) is provided with a counterweight (26).

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