Cleaning and drying device for pitch precursor material of hard carbon negative electrode of sodium-ion battery

Abstract

The utility model provides a sodium ion battery hard carbon negative electrode asphalt precursor material cleaning and drying device which comprises a box body, an ultrasonic cleaning mechanism, a plurality of resistance heating wires and a lifting mechanism, and the resistance heating wires are hung on the upper wall in the box body; the ultrasonic cleaning mechanism is arranged in the box body and located below the resistance heating wire. A water inlet is formed in one side of the ultrasonic cleaning mechanism, and a water outlet is formed in the other side of the ultrasonic cleaning mechanism; a screen frame is arranged in the ultrasonic cleaning mechanism; the lifting mechanism is arranged on the upper wall in the box body and can lift the screen frame, so that the resistance heating wire is located in the circumferential direction of the screen frame. According to the utility model, a cleaning mechanism and a drying mechanism are integrated, so that the material cleaning and drying time is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material cleaning and drying devices, and specifically to a device for cleaning and drying a hard carbon negative electrode asphalt precursor material for a sodium ion battery. Background Art

[0002] The electric vehicle industry is booming, and battery technology has advanced significantly in recent years. Rechargeable lithium batteries, also known as lithium-ion batteries, have garnered significant attention from major companies since their commercialization. Lithium-ion batteries have gradually replaced traditional petroleum-based backup energy sources for electric vehicles. However, as lithium-ion batteries become increasingly common, the price of lithium is also rising. Since sodium and lithium are elements in the same main group, sodium-ion batteries offer significant potential as an alternative to lithium-ion batteries. As a highly anticipated new battery technology, sodium-ion batteries are attracting significant attention from researchers and industry. Compared to traditional lithium-ion batteries, sodium-ion batteries offer numerous potential advantages. First, sodium, as one of Earth's most abundant resources, is more sustainable than scarce lithium and has a relatively stable price, potentially bringing greater stability and predictability to the battery industry. Second, sodium-ion batteries offer safety advantages over lithium-ion batteries, and their lower cost and improved safety profile are expected to attract a wider market. As a key element influencing battery performance, hard carbon anode materials for sodium-ion batteries have garnered significant attention.

[0003] Hard carbon materials have abundant resource sources and good cycle stability, and are suitable for use as negative electrode materials for sodium ion batteries. Their excellent conductivity and stability make it possible to improve the performance of sodium ion batteries. At present, asphalt precursors have the characteristics of high carbon residue rate, low cost, and high conductivity, and can be used as the first choice for the preparation of negative electrode materials for sodium ion batteries. The hard carbon materials prepared from asphalt precursors doped with boron also have good electrochemical performance in sodium ion batteries. During the preparation process, the hard carbon precursor needs to be cleaned and dried after being doped with boric acid to prevent residual boric acid from affecting battery performance. Therefore, it is of great significance to provide a cleaning and drying device for hard carbon negative electrode asphalt precursor materials for sodium ion batteries. Utility Model Content

[0004] The present invention aims to address one or more of the shortcomings of the prior art. For example, one of the objectives of the present invention is to provide a cleaning and drying device for preparing hard carbon anode pitch precursor materials for sodium ion batteries that combines both cleaning and drying functions, thereby shortening the cleaning process and improving efficiency.

[0005] In order to achieve the above-mentioned objectives, the utility model provides, on the one hand, a cleaning and drying device for sodium ion battery hard carbon negative electrode asphalt precursor materials, which may include a box body, an ultrasonic cleaning mechanism, a plurality of resistance heating wires and a lifting mechanism, wherein the plurality of resistance heating wires are hung on the upper wall of the box body; the ultrasonic cleaning mechanism is arranged in the box body and is located below the resistance heating wires; a water inlet is provided on one side of the ultrasonic cleaning mechanism and a water outlet is provided on the other side; a mesh frame is provided in the ultrasonic cleaning mechanism; the lifting mechanism is arranged on the upper wall of the box body, and the lifting mechanism can lift the mesh frame so that the resistance heating wires are located in the circumferential direction of the mesh frame.

[0006] According to one or more exemplary embodiments of one aspect of the present invention, a lifting ring may be provided on the net frame; the lifting mechanism may include a fixer, a telescopic rod and a spring hook, the telescopic rod is connected and fixed to the box body through the fixer, and a spring hook is provided at the lower end of the telescopic rod, and the spring hook matches the lifting ring to realize the lifting of the net frame.

[0007] According to one or more exemplary embodiments of one aspect of the present invention, the device may include 4 to 8 sets of lifting mechanisms, and the screen frame may be provided with 4 to 8 sets of hanging rings.

[0008] According to one or more exemplary embodiments of an aspect of the present invention, the length of the resistance heating wire may be greater than the height of the screen frame when it is suspended.

[0009] According to one or more exemplary embodiments of one aspect of the present invention, the resistance heating wire may be connected and fixed to the box body via a support rod.

[0010] According to one or more exemplary embodiments of one aspect of the present invention, an ultrasonic emitting element may be provided on a side wall of the ultrasonic cleaning mechanism.

[0011] According to one or more exemplary embodiments of an aspect of the present invention, an air inlet may be provided on one side of the box body, and an air outlet may be provided on the other side thereof.

[0012] According to one or more exemplary embodiments of one aspect of the present invention, the water inlet may be connected to an external water pump via a pipeline, and the water outlet may be connected to the outside via a pipeline.

[0013] According to one or more exemplary embodiments of one aspect of the present invention, a base may be provided inside the box, and the ultrasonic cleaning mechanism is located on the base.

[0014] According to one or more exemplary embodiments of one aspect of the present invention, the ultrasonic cleaning mechanism, the resistance heating wire, and the lifting mechanism can all be connected to an external power source via a switch.

[0015] Compared with the prior art, the beneficial effects of the present invention include at least one of the following:

[0016] (1) The utility model integrates the cleaning mechanism and the drying mechanism into one, which shortens the time for cleaning and drying materials and improves production efficiency.

[0017] (2) The utility model dries the material through the resistance heating wire, thereby improving the heating efficiency and shortening the heating time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects and features of the present invention will become more apparent from the following description in conjunction with the accompanying drawings, in which:

[0019] Figure 1 A schematic structural diagram of a sodium ion battery hard carbon negative electrode asphalt precursor material cleaning and drying device according to an exemplary embodiment of the present invention is shown.

[0020] Reference numerals:

[0021] 1- box, 2- ultrasonic cleaning mechanism, 201- base, 202- ultrasonic transmitting element, 203- screen frame, 204- hanging ring, 205- water inlet, 206- water outlet, 3- support rod, 4- resistance heating wire, 5- lifting mechanism, 501- fixer, 502- telescopic rod, 503- spring hook, 6- air inlet, 7- air outlet. DETAILED DESCRIPTION

[0022] Hereinafter, a device for cleaning and drying a sodium ion battery hard carbon negative electrode asphalt precursor material of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0023] In the description of the present application, it should be understood that the terms "middle", "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application. In the description of the present utility model, unless otherwise specified, "multiple" and "several" mean two or more. In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Exemplary embodiment 1

[0025] This exemplary embodiment provides a device for cleaning and drying a sodium ion battery hard carbon negative electrode asphalt precursor material.

[0026] Figure 1 The following is a schematic diagram showing a structural diagram of a sodium ion battery hard carbon negative electrode pitch precursor material cleaning and drying device according to an exemplary embodiment of the present invention. Figure 1 To describe the sodium ion battery hard carbon negative electrode pitch precursor material cleaning and drying device of this exemplary embodiment.

[0027] The cleaning and drying device for sodium-ion battery hard carbon anode pitch precursor material may include a housing 1, an ultrasonic cleaning mechanism 2, a plurality of resistance heating wires 4, and a lifting mechanism 5. The ultrasonic cleaning mechanism cleans the material; the lifting mechanism extracts the material for drying; and the resistance heating wires, a drying component, dries the material.

[0028] Among them, a number of resistance heating wires 4 are hung on the upper wall inside the box body 1. Here, the resistance heating wires can be arranged at even intervals, and their number can be set to 2 to 8 groups. The ultrasonic cleaning mechanism 2 is arranged in the box body 1, and is connected to the bottom surface of the box body 1. The ultrasonic cleaning mechanism 2 is below the resistance heating wire 4. A water inlet 205 is provided on one side surface of the ultrasonic cleaning mechanism 2, and a water outlet 206 is provided on the other opposite side surface. The water inlet 205 can be connected to an external water pump through a pipe, and the water outlet 206 can be connected to the outside through a pipe, so as to facilitate the supply of water to the ultrasonic cleaning mechanism for cleaning operations and the discharge of output water. The ultrasonic cleaning mechanism 2 is set in an open manner, and a mesh frame 203 is provided inside the ultrasonic cleaning mechanism 2. The mesh frame 203 is used to place the sodium ion battery hard carbon negative electrode asphalt precursor material to be cleaned and dried. The lifting mechanism 5 is arranged on the wall at the top inside the box body 1. The lifting mechanism 5 can lift the screen frame 203 so that the screen frame 203 is in the space surrounded by several resistance heating wires 4, that is, the resistance heating wires 4 are located in the circumferential direction of the screen frame 203, which is conducive to the drying operation of the material in the screen frame 203.

[0029] Furthermore, the water inlet 205 can be located at the upper side of the ultrasonic cleaning mechanism 2, and the water outlet 206 can be located at the lower side of the ultrasonic cleaning mechanism 2. The water inlet 205 and the water outlet 206 are not on the same horizontal line, and the water inlet 205 is located above the water outlet 206.

[0030] In this exemplary embodiment, the screen frame 203 may be provided with hanging rings 204. The placement of the hanging rings on the screen frame is not specifically limited and may be located at any available position on the screen frame. Preferably, the hanging rings are located at the top of the screen frame to facilitate lifting and lowering. The hanging rings may be evenly spaced, and may be provided in groups of 4 to 8.

[0031] In this exemplary embodiment, the lifting mechanism 5 may include a fixture 501, a telescopic rod 502, and a spring hook 503. The telescopic rod 502 is connected and fixed to the box body 1 via the fixture 501. A spring hook 503 is provided at the lower end of the telescopic rod 502. The spring hook 503 matches the hanging ring 204 of the screen frame 203. After the spring hook 503 is connected to the hanging ring 204, the telescopic rod 502 is activated to extract the screen frame 203 for lifting and moving. Here, the lifting mechanism can be evenly spaced on the inner upper wall surface of the box body, and the number of the lifting mechanisms can be 4 to 8 groups. The present invention fixes the screen frame by multiple groups of spring hooks and hanging rings. The method of fixing the screen frame is stable, and the screen frame is stable when it is lifted or lowered.

[0032] Furthermore, the resistance heating wire can be located around the outer periphery of the lifting mechanism, making it easier for the lifting mechanism to extract the screen frame for drying.

[0033] Furthermore, the telescopic rod can be an electric telescopic rod, which can better control the lifting speed during use.

[0034] In this exemplary embodiment, the length of the resistance heating wire may be greater than the height of the screen frame when it is suspended.

[0035] Furthermore, the resistance heating wire 4 can be connected and fixed to the wall of the box body 1 through the support rod 3.

[0036] In this exemplary embodiment, an ultrasonic emitting element 202 may be provided on the side wall of the ultrasonic cleaning mechanism 2. The ultrasonic emitting element may drive the device to operate.

[0037] In this exemplary embodiment, an air inlet 6 may be provided on one side wall of the housing 1, and an air outlet 7 may be provided on the opposite side wall. The air inlet 6 and the air outlet 7 may be located at the same horizontal position. Providing both an air inlet and an air outlet facilitates the introduction of air into the air inlet, allowing the air flow to remove water vapor evaporated during the drying process from the housing through the air outlet.

[0038] In this exemplary embodiment, a base 201 may be provided on the inner bottom surface of the box body 1 , and the ultrasonic cleaning mechanism 2 may be connected to the box body 1 via the base 201 .

[0039] In this exemplary embodiment, the ultrasonic cleaning mechanism, the resistance heating wire, and the lifting mechanism can all be connected to an external power source through a switch.

[0040] The use / working process of the sodium ion battery hard carbon negative electrode asphalt precursor material cleaning and drying device of the utility model may include:

[0041] Place the sodium-ion battery hard carbon anode asphalt precursor material in the mesh frame. Connect a water pipe to the water inlet via an external water pump to deliver water to the ultrasonic cleaning mechanism. Place the mesh frame in the ultrasonic cleaning mechanism and activate the ultrasonic transmitter to clean the material. Then, connect the spring hook to the lifting ring and use the lifting mechanism to raise the mesh frame to the position of the resistance heating wire. The resistance heating wire will then dry the material. Air is introduced through the air inlet, and the evaporated water vapor from the drying process is removed through the air outlet. Finally, remove the mesh frame.

[0042] To sum up, the beneficial effects include: the utility model provides a cleaning and drying device for sodium ion battery hard carbon negative electrode asphalt precursor materials, which integrates cleaning and drying into one, shortens the time required to transfer to another drying equipment after cleaning, and improves production efficiency.

[0043] Although the above description of a sodium ion battery hard carbon negative electrode asphalt precursor material cleaning and drying device of the present invention has been described in combination with exemplary embodiments, those skilled in the art should be aware that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope defined by the claims.

Claims

1. A sodium ion battery hard carbon negative electrode asphalt precursor material cleaning and drying device, characterized in that: The device includes a box, an ultrasonic cleaning mechanism, a plurality of resistance heating wires and a lifting mechanism, wherein: A plurality of resistance heating wires are suspended on the upper wall of the box; a screen frame is provided in the ultrasonic cleaning mechanism; the length of the resistance heating wires is greater than the height of the screen frame when it is suspended; an air inlet is provided on one side of the box, and an air outlet is provided on the other side; air is introduced into the air inlet, and the air flow removes evaporated water vapor from the box through the air outlet; The ultrasonic cleaning mechanism is arranged in the box and is located below the resistance heating wire; a water inlet is arranged on one side of the ultrasonic cleaning mechanism, and a water outlet is arranged on the other side; The lifting mechanism is arranged on the upper wall of the box body, and the lifting mechanism can lift the screen frame so that the resistance heating wire is located in the circumferential direction of the screen frame.

2. The device for cleaning and drying the precursor material of hard carbon negative electrode pitch for sodium ion batteries according to claim 1, characterized in that: The net frame is provided with a lifting ring; the lifting mechanism includes a fixer, a telescopic rod and a spring hanging buckle, the telescopic rod is connected and fixed to the box through the fixer, and a spring hanging buckle is provided at the lower end of the telescopic rod, which matches the lifting ring to realize the lifting of the net frame.

3. The device for cleaning and drying the precursor material of hard carbon negative electrode pitch for sodium ion batteries according to claim 2, characterized in that: The device comprises 4 to 8 groups of lifting mechanisms, and the screen frame is provided with 4 to 8 groups of hanging rings.

4. The device for cleaning and drying the precursor material of hard carbon negative electrode pitch for sodium ion batteries according to claim 1, characterized in that: The resistance heating wire is connected and fixed to the box body through a support rod.

5. The device for cleaning and drying the precursor material of hard carbon negative electrode pitch for sodium ion batteries according to claim 1, characterized in that: An ultrasonic emitting element is provided on the side wall of the ultrasonic cleaning mechanism.

6. The device for cleaning and drying the precursor material of hard carbon negative electrode pitch for sodium ion batteries according to claim 1, characterized in that: The water inlet is connected to an external water pump through a pipeline, and the water outlet is connected to the outside through a pipeline.

7. The device for cleaning and drying hard carbon negative electrode pitch precursor material for sodium ion batteries according to claim 1, characterized in that: A base is provided inside the box, and the ultrasonic cleaning mechanism is located on the base.

8. The device for cleaning and drying hard carbon negative electrode pitch precursor material for sodium ion batteries according to claim 1, characterized in that: The ultrasonic cleaning mechanism, the resistance heating wire and the lifting mechanism are all connected to an external power supply through a switch.

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