A stirring device for the production and processing of solid-state lithium-ion battery materials
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2026-08-11
AI Technical Summary
现有的固态锂离子电池材料搅拌设备多采用单一搅拌桨叶结构，对于高粘度的固态锂离子电池材料，这种结构难以产生足够的剪切力和湍流，导致材料混合不充分，容易出现局部团聚或分层现象；以及在搅拌过程中会产生的多余液体或反应副产物这些液体若不能及时排出，不仅会影响材料的干燥度和纯度，还可能与设备内壁发生化学反应，对设备造成腐蚀；因此，需要对上述问题进行改进
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of the main stirring blade and the side stirring blade, uses the main stirring blade, which is spiral-bladed, to generate axial flow, and the side stirring blade, which has an n-shaped cross-section, to generate radial flow. This facilitates the generation of sufficient shear force and turbulence for high-viscosity materials, improving the fullness and uniformity of material mixing, and thus enabling the function of uniformly distributing each component to form a stable mixture. Furthermore, through the cooperation of the first rotating shaft, the drive pulley, the belt, the second rotating shaft, and the first spiral blade, the motor drives the first rotating shaft to rotate while simultaneously driving the second rotating shaft to rotate. The first spiral blade draws the liquid at the lower end of the mixing vessel to the liquid extraction tank through an L-shaped water extraction pipe. In conjunction with the liquid extraction pump on the pipe connecting the liquid extraction tank and the solution tank, the liquid in the liquid extraction tank is promptly pumped to the solution tank, facilitating the timely separation and treatment of excess liquid or reaction byproducts generated during the stirring process. This improves the dryness and purity of the material, prevents equipment corrosion, and thus enables efficient liquid circulation processing. Ultimately, this solves the problems of insufficient mixing of high-viscosity materials and untimely liquid treatment in traditional stirring equipment, improving the production quality of solid-state lithium-ion battery materials and the service life of the equipment.
Smart Images
Figure CN224613657U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery material stirring technology, and in particular to a stirring device for the production and processing of solid-state lithium-ion battery materials. Background Technology
[0002] In the production and processing of solid-state lithium-ion battery materials, uniform material mixing is a key step in ensuring battery performance and stability. Solid-state lithium-ion battery materials are usually composed of various active materials, conductive agents, binders, and other components, which vary greatly in particle size, density, and chemical properties. By thoroughly mixing these materials with a stirring device, the components can be evenly distributed to form a stable mixture, thereby ensuring unobstructed ion conduction pathways inside the battery and improving the battery's charge and discharge efficiency, cycle life, and energy density. Existing solid-state lithium-ion battery material mixing equipment mostly adopts a single stirring blade structure. For high-viscosity solid-state lithium-ion battery materials, this structure is difficult to generate sufficient shear force and turbulence, resulting in insufficient material mixing and easy occurrence of local agglomeration or stratification. In addition, excess liquid or reaction byproducts generated during the stirring process, if not drained in time, will not only affect the dryness and purity of the material, but may also react chemically with the inner wall of the equipment, causing corrosion. Therefore, improvements are needed to address these issues. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a stirring device for the production and processing of solid-state lithium-ion battery materials.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a stirring device for the production and processing of solid-state lithium-ion battery materials, comprising a top cover, a stirring vessel abutting against the bottom surface of the top cover, a liquid extraction tank being fixedly connected to one side of the outer wall of the stirring vessel, a solution tank being connected to the bottom end of the liquid extraction tank, an inclined feed pipe being provided at one end of the top cover, a discharge pipe being fixedly connected to the bottom end of the liquid extraction tank, a valve being installed on the discharge pipe, an installation plate being fixedly connected to the bottom surface of the top cover, a corresponding abutment plate being fixedly connected to the upper end of the stirring vessel, a plurality of fixing bolts being equidistantly inserted between the abutment plate and the installation plate, a motor being installed at the center of the top of the top cover, and a plurality of support feet being fixedly connected to the periphery of the bottom surface of the stirring vessel.
[0005] Preferably, a first rotating shaft is rotatably provided inside the mixing vessel. One end of the first rotating shaft is coaxially fixed to a motor. A main stirring paddle is fixedly provided at the lower middle part of the first rotating shaft. A bracket is coaxially fixedly provided at the upper end of the first rotating shaft above the main stirring paddle. Side stirring paddles are rotatably provided at both ends of the bottom surface of the bracket.
[0006] Preferably, the main impeller is in the shape of a helical blade, and the side impeller has an n-shaped cross-section.
[0007] Preferably, the first rotating shaft is coaxially fixed to a drive pulley at the upper end of the support, the liquid extraction tank is rotatably provided with a second rotating shaft, the upper end of the second rotating shaft is coaxially fixed to a driven pulley, a belt is installed between the drive pulley and the driven pulley, and a partition cover is sleeved in the stirring tank at the location where the belt and the drive pulley are located.
[0008] Preferably, the second rotating shaft is fixedly connected to the rod inside the liquid extraction tank with a first spiral blade, and an L-shaped water extraction pipe is opened in the inner wall of the stirring vessel. One end of the L-shaped water extraction pipe is connected to the lower end of the stirring vessel, and the other end of the L-shaped water extraction pipe is connected to the upper end of the inner wall of the liquid extraction tank.
[0009] Preferably, a pump is installed on the connecting pipe between the pumping tank and the solution tank.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of the main stirring blade and the side stirring blade, uses the main stirring blade, which is spiral-bladed, to generate axial flow, and the side stirring blade, which has an n-shaped cross-section, to generate radial flow. This facilitates the generation of sufficient shear force and turbulence for high-viscosity materials, improving the fullness and uniformity of material mixing, and thus enabling the function of uniformly distributing each component to form a stable mixture. Furthermore, through the cooperation of the first rotating shaft, the drive pulley, the belt, the second rotating shaft, and the first spiral blade, the motor drives the first rotating shaft to rotate while simultaneously driving the second rotating shaft to rotate. The first spiral blade draws the liquid at the lower end of the mixing vessel to the liquid extraction tank through an L-shaped water extraction pipe. In conjunction with the liquid extraction pump on the pipe connecting the liquid extraction tank and the solution tank, the liquid in the liquid extraction tank is promptly pumped to the solution tank, facilitating the timely separation and treatment of excess liquid or reaction byproducts generated during the stirring process. This improves the dryness and purity of the material, prevents equipment corrosion, and thus enables efficient liquid circulation processing. Ultimately, this solves the problems of insufficient mixing of high-viscosity materials and untimely liquid treatment in traditional stirring equipment, improving the production quality of solid-state lithium-ion battery materials and the service life of the equipment. Attached Figure Description
[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a second-view schematic diagram of the overall structure proposed in this utility model; Figure 3 This is a first-view schematic diagram of the overall cross-sectional structure proposed in this utility model; Figure 4 This is a second-view schematic diagram of the overall cross-sectional structure proposed in this utility model.
[0012] The following are the components listed in the diagram: 1. Top cover; 2. Stirring vessel; 3. Liquid extraction tank; 4. Solution tank; 5. Feed pipe; 6. Discharge pipe; 7. Valve; 8. Mounting plate; 9. Motor; 10. Support leg; 11. First rotating shaft; 12. Bracket; 13. Main stirring paddle; 14. Side stirring paddle; 15. Belt; 16. Second rotating shaft; 17. First spiral blade. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0014] Example: See Figure 1-4This utility model discloses a stirring device for the production and processing of solid-state lithium-ion battery materials, comprising a top cover 1, a stirring vessel 2 abutting against the bottom surface of the top cover 1, a liquid extraction tank 3 fixedly connected to one side of the outer wall of the stirring vessel 2, a solution tank 4 connected to the bottom end of the liquid extraction tank 3, an inclined feed pipe 5 at one end of the top cover 1, a discharge pipe 6 fixedly connected to the bottom end of the liquid extraction tank 3, a valve 7 installed on the discharge pipe 6, an installation plate 8 fixedly connected to the bottom surface of the top cover 1, a corresponding abutment plate fixedly connected to the upper end of the stirring vessel 2, multiple fixing bolts equidistantly passing through the abutment plate and the installation plate 8, and a motor 9 installed at the center of the top of the top cover 1. Multiple support feet 10 are fixedly connected to the bottom perimeter; this structure is connected to the mounting plate 8 and the abutment plate by bolts, realizing a stable connection between the top cover 1 and the mixing vessel 2, which facilitates the assembly and disassembly of the equipment and improves the convenience of maintenance; the inclined feed pipe 5 facilitates the input of materials, and the discharge pipe 6 cooperates with the valve 7 to facilitate the control of material discharge; the support feet 10 provide stable support for the equipment; both the top cover 1 and the mixing vessel 2 are made of 316L stainless steel, which has strong corrosion resistance and can adapt to the chemical environment in battery material production; the motor 9 is model Y160M-4 with a power of 11kW, which can provide stable power; the mixing vessel 2 internal rotation The system includes a first rotating shaft 11, one end of which is coaxially fixed to a motor 9. A main stirring paddle 13 is fixedly connected to the lower middle part of the first rotating shaft 11. A bracket 12 is coaxially fixed to the upper part of the first rotating shaft 11 above the main stirring paddle 13. Side stirring paddles 14 are rotatably mounted at both ends of the bottom surface of the bracket 12. The motor 9 drives the first rotating shaft 11 to rotate, which in turn drives the main stirring paddle 13 and the bracket 12 to rotate. The bracket 12 then drives the side stirring paddles 14 to rotate. This multi-blade structure design facilitates multi-angle stirring of high-viscosity materials, improves stirring efficiency and mixing uniformity, and enables thorough mixing of all components. The first rotating shaft 11 adopts... Made of 42CrMo alloy steel, it has high strength and can withstand high torque; the main agitator 13 and the side agitator 14 are both made of 304 stainless steel with polished surfaces, making it less prone to material adhesion; the main agitator 13 is in the shape of a helical blade, and the side agitator 14 has an n-shaped cross section; the helical blade-shaped main agitator 13 generates axial flow when rotating, which can make the material tumble up and down; the n-shaped cross section side agitator 14 generates radial flow, which enhances the lateral mixing of the material. The combination of the two blades facilitates the generation of sufficient shear force and turbulence for high-viscosity materials, improves the fullness of material mixing, and can effectively avoid local agglomeration or stratification.
[0015] In this invention, a first rotating shaft 11 is coaxially fixed to a drive pulley at the upper end of the support 12. A second rotating shaft 16 is rotatably mounted inside the liquid extraction tank 3, and a driven pulley is coaxially fixed to the upper end of the second rotating shaft 16. A belt 15 is installed between the drive pulley and the driven pulley. A partition cover is sleeved inside the stirring vessel 2 at the location where the belt 15 and the drive pulley are. The rotation of the first rotating shaft 11 drives the drive pulley to rotate, and the belt 15 drives the driven pulley, causing the second rotating shaft 16 to rotate synchronously, realizing the transmission of power. This facilitates the simultaneous driving of stirring and liquid extraction functions, improving the integration and operating efficiency of the equipment. The partition cover isolates the belt 15 and the drive pulley from the material, preventing the material from entering the transmission components, thus improving the service life and operational stability of the equipment. The drive pulley and the driven pulley are standard V-type pulleys, and the belt 15 is a standard V-type belt. This combination results in high transmission efficiency and low noise. The partition cover is made of polytetrafluoroethylene, which is corrosion-resistant and has good sealing performance. A first spiral blade 17 is fixedly mounted on the rod of the second rotating shaft 16 inside the liquid extraction tank 3. An L-shaped water-drawing pipe is installed in the inner wall of the stirring vessel 2. One end of the L-shaped water-drawing pipe is connected to the lower end of the stirring vessel 2, and the other end is connected to the upper end of the inner wall of the liquid-drawing tank 3. The second rotating shaft 16 drives the first spiral blade 17 to rotate, drawing excess liquid or reaction by-products from the lower end of the stirring vessel 2 into the liquid-drawing tank 3 through the L-shaped water-drawing pipe. This facilitates timely separation and treatment of liquids generated during the stirring process, improves the dryness and purity of the materials, avoids corrosion of the equipment by the liquid, and enables liquid circulation. A liquid-drawing pump is installed on the connecting pipe between the liquid-drawing tank 3 and the solution tank 4. The liquid-drawing pump promptly pumps the liquid in the liquid-drawing tank 3 to the solution tank 4, further improving the liquid treatment efficiency and ensuring that excess liquid or reaction by-products generated during the stirring process can be quickly separated and treated. This improves the dryness and purity of the materials, avoids corrosion of the equipment, and enhances the reliability and service life of the equipment. The model of the liquid-drawing pump is IH50-32-125, and its flow rate and head parameters meet the liquid transportation requirements.
[0016] Working Principle: In use, various active materials, conductive agents, binders, and other materials are first fed into the mixing vessel 2 through the inclined feed pipe 5. After starting the equipment, the motor 9 at the top center of the top cover 1 begins to operate, driving the first rotating shaft 11 to rotate. The main stirring paddle 13 at the lower center of the first rotating shaft 11 rotates accordingly, generating axial flow to stir the materials. Simultaneously, the support 12 located above the main stirring paddle 13 rotates with the first rotating shaft 11, and the side stirring paddles 14, which are rotated at both ends of the bottom surface of the support 12, also begin to rotate under the action of centrifugal force and material resistance. The n-shaped side stirring paddles 14 generate radial flow, which, in conjunction with the main stirring paddle 13, generates sufficient shear force and turbulence for the high-viscosity solid lithium-ion battery materials, ensuring thorough and uniform mixing of all components. During the stirring process, the drive pulley located at the upper end of the support 12 of the first rotating shaft 11 rotates synchronously with the first rotating shaft 11. The system is activated by belt 15, which drives the driven pulley at the upper end of the second rotating shaft 16 inside the pumping tank 3 to rotate, thereby causing the second rotating shaft 16 to rotate. The first spiral blade 17 on the shaft of the second rotating shaft 16 rotates accordingly, drawing excess liquid or reaction by-products from the lower end of the stirred tank 2 into the pumping tank 3 through the L-shaped water pumping pipe opened in the inner wall of the stirred tank 2. When the liquid in the pumping tank 3 reaches a certain amount, the pumping pump on the pipe connecting the pumping tank 3 and the solution tank 4 is started, pumping the liquid in the pumping tank 3 to the solution tank 4, completing the separation and processing of the liquid. After stirring is completed, the valve 7 on the discharge pipe 6 is opened, and the uniformly mixed material is discharged from the discharge pipe 6. Since the mounting plate 8 on the bottom surface of the top cover 1 is connected to the abutment plate at the upper end of the stirred tank 2 by fixing bolts, when it is necessary to maintain or clean the equipment, the fixing bolts can be unscrewed to separate the top cover 1 from the stirred tank 2, making it convenient to clean and repair the inside of the stirred tank 2 and its components. At this point, the device is in use.
[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A stirring device for the production and processing of solid-state lithium-ion battery materials, comprising a top cover (1), characterized in that: The bottom surface of the top cover (1) is abutted against the stirring vessel (2). A liquid extraction tank (3) is connected and fixed to one side of the outer wall of the stirring vessel (2). A solution tank (4) is connected to the bottom end of the liquid extraction tank (3). A feed pipe (5) is inclined at one end of the top cover (1). A discharge pipe (6) is connected and fixed to the bottom end of the liquid extraction tank (3). A valve (7) is installed on the discharge pipe (6). An installation plate (8) is fixed to the bottom surface of the top cover (1). A corresponding abutment plate of the installation plate (8) is fixed to the upper end of the stirring vessel (2). Multiple fixing bolts are equidistant between the abutment plate and the installation plate (8). A motor (9) is installed in the middle of the top of the top cover (1). Multiple support feet (10) are fixed to the periphery of the bottom surface of the stirring vessel (2). The stirring vessel (2) is provided with a first rotating shaft (11) that rotates inside. One end of the first rotating shaft (11) is coaxially fixed to the motor (9). A main stirring paddle (13) is fixedly connected to the lower end of the middle part of the first rotating shaft (11). A bracket (12) is coaxially fixed to the upper end of the first rotating shaft (11) and a side stirring paddle (14) is rotatably provided at both ends of the bottom surface of the bracket (12). The main stirring blade (13) is in the shape of a spiral blade, and the side stirring blade (14) has an n-shaped cross section.
2. The stirring equipment for solid-state lithium-ion battery material production and processing according to claim 1, characterized in that: The first rotating shaft (11) is coaxially fixed to the upper end of the bracket (12) with a driving pulley. The liquid extraction tank (3) is rotatably provided with a second rotating shaft (16). The upper end of the second rotating shaft (16) is coaxially fixed to a driven pulley. A belt (15) is installed between the driving pulley and the driven pulley. A partition cover is sleeved in the stirring tank (2) at the location where the belt (15) and the driving pulley are connected.
3. The stirring equipment for solid-state lithium-ion battery material production and processing according to claim 2, characterized in that: The second rotating shaft (16) is fixedly provided with a first spiral blade (17) on the rod inside the liquid extraction tank (3). An L-shaped water extraction pipe is provided in the inner wall of the stirring vessel (2). One end of the L-shaped water extraction pipe is connected to the lower end of the stirring vessel (2), and the other end of the L-shaped water extraction pipe is connected to the upper end of the inner wall of the liquid extraction tank (3).
4. The stirring equipment for solid-state lithium-ion battery material production and processing according to claim 3, characterized in that: A pump is installed on the connecting pipe between the pumping tank (3) and the solution tank (4).