Lithium battery negative electrode material demagnetization device
By installing a heating sheet, a shielding assembly, a motor and a protective barrier in the demagnetization device of the negative electrode material of the lithium battery, and controlling the movement and heating of the material with a rotating plate, the problems of material damage and high cost in the prior art are solved, and the fullness of the material is achieved Demagnetization and cost reduction.
Patent Information
- Application Number
- CN202323319724.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-06
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2033-12-06
AI Technical Summary
The existing demagnetization device for the negative electrode material of lithium battery demagnetization is carried out through vibration and heating, resulting in damage to raw materials and increasing material loss rate and production costs.
A demagnetization device including a heating plate, a shading assembly, a motor and a protective edge barrier is designed. The movement of raw materials is controlled by the rotation of the rotating plate, and sufficient heating is carried out to avoid material damage and reduce production costs.
The device can effectively avoid raw material damage, reduce production costs, and improve the convenience of use.
Smart Images
Figure CN222300402U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of demagnetization devices, in particular to a demagnetization device for negative electrode materials of lithium batteries. Background Art
[0002] The negative electrode materials of lithium batteries are divided into two categories: carbon materials and silicon-based materials. The key to whether lithium-ion batteries can be successfully manufactured lies in whether negative electrode materials that can reversibly deintercalate and deintercalate lithium ions can be prepared. When producing lithium-ion batteries, the negative electrode materials need to be demagnetized, and a demagnetization device is required.
[0003] In the existing technology, the demagnetization device performs demagnetization operation by vibrating and heating. Although it has a demagnetization effect, it will damage the raw materials during the demagnetization process, thereby increasing the material loss rate, increasing production costs, and being inconvenient to use. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, one of the purposes of the utility model is to provide a demagnetization device for lithium battery negative electrode materials. By setting a heating plate, a shielding assembly, a motor, and a protective rib, the movement of the raw materials can be controlled by rotating a rotating plate, and the raw materials can be fully heated and demagnetized to avoid damage to the raw materials, reduce production costs, and be easy to use.
[0005] One of the purposes of the utility model is achieved by the following technical solution: a demagnetization device for negative electrode materials of lithium batteries, comprising a bottom plate, a support leg fixedly connected to the bottom of the bottom plate, a protective rib fixedly connected to the bottom plate, a discharge pipe fixedly connected to the protective rib, a support plate fixedly connected to the protective rib, a feeding funnel fixedly connected to the support plate, a motor fixedly installed at the bottom of the bottom plate, a shielding assembly fixedly connected to the output end of the motor through the bottom plate, the shielding assembly comprising a rotating plate fixedly installed at the output end of the motor, at least two shielding ribs concentrically arranged fixedly installed on the rotating plate, a motion cavity formed between adjacent shielding ribs, a connecting notch arranged on the shielding ribs, the connecting notches on adjacent shielding ribs are at different positions, a heating plate is arranged below the rotating plate, and the heating plate is connected to an external controller. Through the provided heating plate, shielding assembly, motor, and protective rib, the movement of the raw material can be controlled by the rotation of the rotating plate, and the raw material can be fully heated and demagnetized to avoid damage to the raw material, reduce production costs, and be easy to use.
[0006] According to the demagnetization device for negative electrode materials of lithium batteries, there are four supporting legs, which are axially symmetrically arranged.
[0007] According to the demagnetization device for negative electrode materials of lithium batteries, a support base is fixedly connected to the bottom plate, and a slide groove is arranged on the support base.
[0008] According to the demagnetization device for negative electrode materials of lithium batteries, a slider is fixedly connected to the lower portion of the rotating plate, and the slider is slidably connected to the slide groove.
[0009] According to the demagnetization device for negative electrode materials of lithium batteries, the support seat is located outside the heating plate, and the cross-section is in the shape of a circular ring.
[0010] According to the demagnetization device for negative electrode materials of lithium batteries, the heating plate is in the shape of a circular ring, and the output end of the motor passes through the heating plate.
[0011] According to the demagnetization device for negative electrode materials of lithium batteries, the lower part of the feeding funnel is located inside the central shielding edge.
[0012] According to the demagnetization device for negative electrode materials of lithium batteries, the longitudinal section of the support plate is in an inverted U shape.
[0013] Beneficial Effects
[0014] Compared with the prior art, the utility model can control the movement of raw materials by rotating the rotating plate through the setting of the heating plate, the shielding assembly, the motor and the protective rib, and can fully heat and demagnetize the raw materials to avoid damage to the raw materials, reduce production costs, and is easy to use.
[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0017] Figure 1 This is a schematic diagram of the structure of a demagnetization device for negative electrode materials of a lithium battery according to the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of a demagnetization device for negative electrode materials of a lithium battery from a bottom perspective of the utility model;
[0019] Figure 3 This is a cross-sectional view of a demagnetization device for negative electrode materials of a lithium battery according to the utility model;
[0020] Figure 4 This is a schematic structural diagram of a demagnetization device for negative electrode materials of a lithium battery according to the utility model, after removing the support plate and the feeding funnel;
[0021] Figure 5 The utility model is a schematic diagram of the structure of a shielding component and a heating plate of a demagnetization device for negative electrode materials of a lithium battery.
[0022] Legend:
[0023] 1. Protective rib; 2. Bottom plate; 3. Support leg; 4. Discharge pipe; 5. Shielding assembly; 6. Feeding funnel; 7. Support plate; 8. Motor; 9. Heating plate; 10. Support seat; 1001. Slide; 501. Shielding rib; 502. Moving cavity; 503. Connecting gap. DETAILED DESCRIPTION
[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0025] Reference Figure 1-5The utility model embodiment is a demagnetization device for negative electrode materials of lithium batteries, which includes a bottom plate 2, a support seat 10 is fixedly connected to the bottom plate 2, the support seat 10 is located on the outside of the heating plate 9, and the cross-section is in the shape of a circular ring, a slide groove 1001 is arranged on the support seat 10, a support leg 3 is fixedly connected to the lower part of the bottom plate 2, the number of the support legs 3 is four, and they are axially symmetrically arranged, a protective rib 1 is fixedly connected to the bottom plate 2, a discharge pipe 4 is fixedly connected to the protective rib 1, a support plate 7 is fixedly connected to the protective rib 1, the longitudinal section of the support plate 7 is in the shape of an inverted U, and a feeding drain is fixedly connected to the support plate 7 The bottom of the feeding funnel 6 is located inside the central shielding edge 501, and a motor 8 is fixedly installed at the bottom of the bottom plate 2. The output end of the motor 8 passes through the bottom plate 2 and is fixedly connected to a shielding assembly 5. The shielding assembly 5 includes a rotating plate fixedly installed at the output end of the motor 8. A slider is fixedly connected to the lower part of the rotating plate. The slider is slidably connected to the slide groove 1001. At least two shielding edges 501 arranged concentrically are fixedly installed on the rotating plate. A motion cavity 502 is formed between adjacent shielding edges 501. A connecting notch 503 is arranged on the shielding edge 501. The position of the connecting notch 503 on the adjacent shielding edges 501 Different from the above, a heating plate 9 is arranged under the rotating plate. The shape of the heating plate 9 is annular. The output end of the motor 8 passes through the heating plate 9. The heating plate 9 is connected to an external controller. The raw materials are added into the motion cavity 502 at the center through the feeding funnel 6. The heating plate 9 is powered on for heating. The heat is transferred to the rotating plate. In order to avoid damage to the heating plate 9, the heating plate 9 is not in direct contact with the rotating plate. A gap is reserved to ensure heat transfer while avoiding damage to the heating plate 9. The motor 8 drives the rotating plate and the shielding edge 501 to rotate. The speed of the motor 8 changes from small to large and then from large to small, so that the raw materials at the center are centrifuged. Under the action of force, the raw materials are dispersed on the inner side of the shielding edge 501. Due to the change in speed, the raw materials will move relatively on the shielding edge 501, so that the raw materials flow out from the connecting gap 503 and enter the outer shielding edge 501, so as to be discharged step by step from the inside to the outside, ensuring that they can be fully heated. Under the action of the support seat 10 and the slide groove 1001, the rotation stability of the rotating plate can be ensured, and then the raw materials discharged from the outermost connecting gap 503 can be blocked by the protective retaining edge 1, so that they can be discharged from the discharge pipe 4. This method avoids damage to the raw materials, reduces production costs, and is easy to use. By setting the heating plate 9, the shielding component 5, the motor 8, and the protective retaining edge 1, the movement of the raw materials can be controlled by the rotation of the rotating plate, and the raw materials can be fully heated and demagnetized, avoiding damage to the raw materials, reducing production costs, and being easy to use.
[0026] Working principle: When in use, connect the whole to an external power source and a controller, which is a conventional and known device for control;
[0027] The raw materials are added into the moving cavity 502 at the center through the feeding funnel 6, the heating plate 9 is powered on for heating, and the heat is transferred to the rotating plate. In order to avoid damage to the heating plate 9, the heating plate 9 is not in direct contact with the rotating plate, and a gap is reserved to ensure heat transfer while avoiding damage to the heating plate 9. The motor 8 drives the rotating plate and the shielding edge 501 to rotate, and the speed of the motor 8 changes from small to large and then from large to small, so that the raw materials at the center are dispersed on the inner side of the shielding edge 501 under the action of centrifugal force. Due to the change in speed, the raw materials will move relatively on the shielding edge 501, so that the raw materials flow out from the connecting gap 503 and enter the outer shielding edge 501, so as to be discharged step by step from the inside to the outside, ensuring that they can be fully heated, and under the action of the support seat 10 and the slide groove 1001, the rotation of the rotating plate can be guaranteed to be stable, and then the raw materials discharged from the outermost connecting gap 503 can be blocked by the protective shielding edge 1, so that they can be discharged from the discharge pipe 4. This method avoids damage to the raw materials, reduces production costs, and is easy to use.
[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.
Claims
1. A demagnetization device for negative electrode materials of a lithium battery, comprising a bottom plate (2), characterized in that: The lower part of the bottom plate (2) is fixedly connected to a support leg (3), the bottom plate (2) is fixedly connected to a protective rib (1), the protective rib (1) is fixedly connected to a discharge pipe (4), the protective rib (1) is fixedly connected to a support plate (7), the support plate (7) is fixedly connected to a feeding funnel (6), a motor (8) is fixedly mounted on the lower part of the bottom plate (2), the output end of the motor (8) passes through the bottom plate (2) and is fixedly connected to a shielding assembly (5), the shielding assembly ( 5) comprises a rotating plate fixedly mounted on the output end of the motor (8), at least two concentrically arranged shielding edges (501) being fixedly mounted on the rotating plate, a moving cavity (502) being formed between adjacent shielding edges (501), a connecting notch (503) being arranged on the shielding edge (501), and the positions of the connecting notches (503) on adjacent shielding edges (501) being different, a heating plate (9) being arranged below the rotating plate, and the heating plate (9) being connected to an external controller.
2. A demagnetization device for negative electrode materials of lithium battery according to claim 1, characterized in that: The number of the supporting legs (3) is four and they are arranged axially symmetrically.
3. A demagnetization device for negative electrode materials of lithium battery according to claim 1, characterized in that: A support seat (10) is fixedly connected to the bottom plate (2), and a slide groove (1001) is provided on the support seat (10).
4. A demagnetization device for negative electrode materials of lithium battery according to claim 1, characterized in that: A sliding block is fixedly connected to the lower part of the rotating plate, and the sliding block is slidably connected to the sliding groove (1001).
5. A demagnetization device for negative electrode materials of lithium battery according to claim 3, characterized in that: The support seat (10) is located outside the heating plate (9) and has a circular cross-section.
6. A demagnetization device for negative electrode materials of lithium battery according to claim 1, characterized in that: The heating plate (9) is in the shape of a circular ring, and the output end of the motor (8) passes through the heating plate (9).
7. A demagnetization device for negative electrode materials of lithium battery according to claim 1, characterized in that: The lower part of the feeding funnel (6) is located inside the central shielding edge (501).
8. A demagnetization device for negative electrode materials of lithium battery according to claim 1, characterized in that: The support plate (7) has a longitudinal section in the shape of an inverted U.