An apparatus for drying battery materials
By using a sealed module and an air-filling pipeline in the battery material drying device, the problem of external air entering the cavity is solved, achieving more efficient moisture removal and material protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING ZHONGLV ZHONGKE LITHIUM-ION CAPACITORS TECHNOLOGY CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-02
Smart Images
Figure CN224316602U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of new energy technology, specifically to a device for drying battery materials. Background Technology
[0002] Excess moisture in battery materials is typically removed using drying techniques. Under normal pressure, the battery materials are heated to a set temperature using a heating device. As the temperature rises, the evaporation of moisture inside the battery materials intensifies. Then, a vacuum pump is used to remove air and moisture from the baking chamber and maintain a vacuum state, further enhancing the moisture removal effect. Subsequently, an inert gas is used to break the vacuum and bring the inside of the chamber to normal pressure for baking. Finally, the cycle of normal pressure baking and vacuum baking is repeated to remove moisture from the battery materials.
[0003] However, during the atmospheric pressure baking process, the inside of the cavity is under atmospheric pressure, and the movable door of the cavity cannot be tightly sealed, which will cause external air to enter the cavity and thus damage the battery materials. Utility Model Content
[0004] In view of this, embodiments of the present disclosure provide an apparatus for drying battery materials to solve the problem of external air entering the cavity during the drying process of battery materials.
[0005] This disclosure provides an apparatus for drying battery materials, comprising: a cavity, hollow inside with an opening on one side, for placing battery materials; a heating module installed inside the cavity for heating the battery materials; a vacuum line placed outside the cavity for evacuating the cavity; a gas filling line placed outside the cavity for filling the cavity with inert gas; and a sealing module including a driving component, a slide rail, and a slider slidably connected to the slide rail, wherein the driving component drives the slider to slide on the slide rail, causing the slider to close the opening of the cavity to prevent air from entering the cavity.
[0006] In some embodiments, the cavity has a first through hole and a second through hole, the first through hole being connected to the vacuuming pipeline and the second through hole being connected to the inflation pipeline.
[0007] In some embodiments, the heating module includes at least two heating units, which are installed at the lower part of the cavity.
[0008] In some embodiments, the heating module further includes a temperature sensor, and when the temperature sensor detects that the temperature inside the cavity reaches a predetermined value, at least two of the heating units stop heating the battery material.
[0009] In some embodiments, the inflation line includes a first branch and a second branch, the first branch being used to fill the cavity with inert gas when it is in a heated state, and the second branch being used to break the vacuum state inside the cavity.
[0010] In some embodiments, the drive component is mounted on a connecting plate, which is fixed to the ground by fasteners.
[0011] In some embodiments, the shape of the slider is adapted to the shape of the slide rail.
[0012] In some embodiments, the slider includes a baffle whose shape is adapted to the shape of the opening of the cavity.
[0013] Compared with the prior art, the embodiments of this disclosure have at least the following beneficial effects:
[0014] This disclosure provides a device for drying battery materials, which has a simple structure and low manufacturing cost. By continuously inputting inert gas through an inflation pipeline and combining it with a sealing module to close the opening of the cavity, the sealing performance of the inner wall of the cavity is improved, which can effectively prevent external air from entering the cavity and thus reduce the waste of battery materials. Attached Figure Description
[0015] The above and other objects, features, and advantages of this disclosure will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the disclosure and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.
[0016] Figure 1 The diagram shown is a structural schematic of an apparatus for drying battery materials according to an embodiment of this disclosure.
[0017] Figure 2 The image shown is an embodiment of this disclosure. Figure 1 The diagram shows the structure along direction A.
[0018] Figure 3 The image shown is a cross-sectional view of a cavity provided in an embodiment of this disclosure.
[0019] Figure 4 The diagram shown is a structural schematic of a sealing module provided in an embodiment of this disclosure.
[0020] Figure 5 The diagram shown is a structural schematic of a sieve provided in an embodiment of this disclosure.
[0021] Figure label:
[0022] 10. An apparatus for drying battery materials; 20. Battery material; 100. Cavity; 110. Opening; 120. First through hole; 130. Second through hole; 200. Heating module; 210. Heating unit; 211. Electric heating tube; 212. Screen; 220. Temperature sensor; 300. Vacuuming pipeline; 400. Gas filling pipeline; 410. First branch; 411. First solenoid valve; 412. First speed regulating valve; 420. Second branch; 421. Second solenoid valve; 422. Second speed regulating valve; 500. Sealing module; 510. Driving component; 511. Cylinder; 512. Cylinder piston; 520. Slide rail; 530. Slider; 531. Baffle; 532. Sealing ring; 610. Connecting plate. Detailed Implementation
[0023] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.
[0024] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of this disclosure provides an apparatus 10 for drying battery materials, comprising: a cavity 100, a heating module 200, a vacuum line 300, an inflation line 400, and a sealing module 500.
[0025] Specifically, the cavity 100 is hollow inside and has an opening 110 on one side for placing the battery material 20. A heating module 200 is installed inside the cavity 100 for heating the battery material 20. A vacuum line 300 is placed outside the cavity 100 for evacuating the cavity 100. A gas filling line 400 is placed outside the cavity 100 for filling the cavity 100 with inert gas. The sealing module 500 includes a driving member 510, a slide rail 520, and a slider 530 slidably connected to the slide rail 520. The driving member 510 drives the slider 530 to slide on the slide rail 520, causing the slider 530 to close the opening 110 of the cavity 100, preventing air from entering the cavity 100.
[0026] Furthermore, the shape of the opening 110 can be circular or a regular polygon; in this application, a square shape is used as a specific embodiment of the opening 110. The battery material 20 is generally in the form of granules, blocks, or thin films. The heating module 200 generally heats the battery material 20 to a set temperature, which is 200 degrees Celsius. The vacuum line 300 mainly consists of a vacuum pump and ordinary pipelines. The inert gas in the gas filling line 400 is nitrogen, argon, etc. The geometric center of the sealing module 500 is aligned with the geometric center of the opening 110.
[0027] The device 10 for drying battery materials disclosed in this application has a simple structure and low manufacturing cost. It continuously inputs inert gas through the gas filling pipe 400 and closes the opening 110 of the cavity 100 with the sealing module 500, thereby improving the sealing performance of the inner wall of the cavity 100 and effectively preventing external air from entering the interior of the cavity 100, thereby reducing the waste of battery materials 20.
[0028] like Figure 3 As shown, the cavity 100 has a first through hole 120 and a second through hole 130 inside. The first through hole 120 is connected to the vacuum pipe 300, and the second through hole 130 is connected to the gas filling pipe 400.
[0029] Furthermore, both the first through hole 120 and the second through hole 130 are circular through holes with the same diameter. The material of the vacuuming pipeline 300 can be copper or aluminum alloy, while the material of the inflation pipeline 400 is plastic such as PVC or PPR.
[0030] like Figure 3 and Figure 5 As shown, the heating module 200 includes at least two heating units 210, which are installed inside the cavity 100 at the lower position.
[0031] Furthermore, the heating unit 210 can be an electric heating tube, a thermal oil heater, or an infrared radiation heater, and the two heating units 210 are independent of each other and do not affect each other. In this application, the heating unit 210 uses an electric heating tube 211 as a specific embodiment. To prevent the electric heating tube 211 from burning the battery material 20, a screen 212 is installed above the electric heating tube 211. The screen holes of the screen 212 are circular or square, and the maximum diameter of the screen holes is smaller than the minimum diameter of the battery material 20. The battery material 20 is fixedly installed above the screen 212, and a fixing device, such as a fixing clip, can be selected according to the actual situation.
[0032] like Figure 3As shown, the heating module 200 also includes a temperature sensor 220. When the temperature sensor 220 detects that the temperature inside the cavity 100 has reached a predetermined value, at least two heating units 210 stop heating the battery material 20.
[0033] Furthermore, the temperature sensor 220 can be a GWP200 intrinsically safe temperature sensor for mining, an MST01Pt100 temperature sensor, or a K-type thermocouple, and it is placed in a corner position inside the cavity 110.
[0034] like Figure 1 and Figure 2 As shown, the gas filling pipeline 400 includes a first branch 410 and a second branch 420. The first branch 410 is used to fill the cavity 100 in a heated state with inert gas, and the second branch 420 is used to break the vacuum state inside the cavity 100.
[0035] Furthermore, the first branch 410 consists of a first solenoid valve 411 and a first speed control valve 412. Under the atmospheric pressure heating and baking process, the first branch 410 continuously fills the cavity 100 with inert gas, creating a slightly positive pressure environment inside the cavity 100, with a relative ambient vacuum value ≤10Pa. The second branch 420 consists of a second solenoid valve 421 and a second speed control valve 422, used to break the vacuum environment of the cavity 100.
[0036] like Figure 1 and Figure 4 As shown, the drive component 510 is mounted on the connecting plate 610, which is mounted on the ground by fasteners.
[0037] Furthermore, the driving component 510 can be an electromagnetic actuator, an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder. This application uses a pneumatic cylinder 511 and a cylinder piston 512 as a specific embodiment. The connecting plate 610 can be L-shaped, Z-shaped, etc. This application uses an L-shaped plate as a specific embodiment, and its material can be aluminum alloy or stainless steel.
[0038] like Figure 1 and Figure 4 As shown, the shape of slider 530 is adapted to the shape of slide rail 520.
[0039] For example, the shape of the slide rail 520 can be I-shaped, V-shaped, dovetail-shaped or rectangular, and this application uses the I-shaped shape as a specific embodiment.
[0040] like Figure 1 and Figure 4 As shown, the slider 530 includes a baffle 531, the shape of which is adapted to the shape of the opening 110 of the cavity 100.
[0041] Furthermore, the slider 530 can be made of nickel-based alloys, tungsten, or their alloys, and its main body is a regular spatial geometry, such as a cuboid. A sealing ring 532 is fitted on the outer side of the baffle 531. The shape of the sealing ring 532 is adapted to the shape of the baffle 531, and the sealing ring 532 is made of rubber to improve the sealing performance when the cavity 100 is closed.
[0042] The device 10 for drying battery materials provided in this application, during use, involves a driving component 510 driving a slider 530 to move linearly along a slide rail 520 until the baffle 531 on the slider 530 is completely in contact with the opening 110 of the cavity 100. Subsequently, a heating unit 210 heats the battery material 20. Simultaneously, an inert gas is injected into the cavity 100 via a first branch 410 through a gas filling pipe 400. When the temperature of the inner wall of the cavity 100 reaches a set value of 200 degrees Celsius, the heating unit 210 stops heating, and the first branch 410 stops injecting inert gas into the cavity 100. Then, a vacuuming pipe 300 evacuates the cavity 100, removing water vapor and dust, creating a vacuum. Finally, the gas filling pipe 400 injects inert gas into the cavity 100 via a second branch 420 to break the vacuum. Throughout this entire process, no external air enters the cavity 100.
[0043] In the embodiments of this application, fasteners specifically refer to bolts and screws. If the form of connection is not explicitly defined, it can be a detachable connection such as a bolt and nut, screw, snap-fit, or magnetic connection. In some connections where there is no particular requirement for a non-detachable fit, a non-detachable connection can be achieved through welding, bonding, or adhesive bonding.
[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. An apparatus for drying battery materials, characterized in that, include: The cavity is hollow inside and has an opening on one side for placing battery materials; A heating module, installed inside the cavity, is used to heat the battery material; A vacuum line is placed on the outside of the cavity for evacuating the cavity. An inflation line is placed on the outside of the cavity and is used to fill the cavity with inert gas. A sealing module includes a driving component, a slide rail, and a slider slidably connected to the slide rail. The driving component drives the slider to slide on the slide rail, causing the slider to close the opening of the cavity to prevent air from entering the interior of the cavity.
2. The apparatus for drying battery materials according to claim 1, characterized in that, The cavity has a first through hole and a second through hole. The first through hole is connected to the vacuuming pipeline, and the second through hole is connected to the inflation pipeline.
3. The apparatus for drying battery materials according to claim 1, characterized in that, The heating module includes at least two heating units, which are installed at the lower part of the cavity.
4. The apparatus for drying battery materials according to claim 3, characterized in that, The heating module also includes a temperature sensor. When the temperature sensor detects that the temperature inside the cavity has reached a predetermined value, at least two of the heating units stop heating the battery material.
5. The apparatus for drying battery materials according to claim 1, characterized in that, The gas filling pipeline includes a first branch and a second branch. The first branch is used to fill the cavity with inert gas when it is in a heated state, and the second branch is used to break the vacuum state inside the cavity.
6. The apparatus for drying battery materials according to claim 1, characterized in that, The driving component is mounted on a connecting plate, which is fixed to the ground by fasteners.
7. The apparatus for drying battery materials according to claim 6, characterized in that, The shape of the slider is adapted to the shape of the slide rail.
8. The apparatus for drying battery materials according to claim 7, characterized in that, The slider includes a baffle whose shape is adapted to the shape of the opening of the cavity.