Heating equipment for producing negative electrode material of lithium battery

Abstract

The utility model belongs to the field of lithium battery negative electrode material production, and discloses heating equipment for lithium battery negative electrode material production, which comprises a basket assembly for holding and heating a lithium battery negative electrode material, and a box body assembly for rotating and heating the lithium battery negative electrode material, the top of the box body assembly is provided with a box cover assembly which is used for sealing and being inserted into a lithium battery negative electrode material for stirring and heating, and the basket assembly is inserted into the box body assembly; the box body assembly comprises a heating box, a heating sleeve is installed on the circumference of the inner wall of the heating box, and a first electric socket is arranged on the outer side of the heating box. According to the heating equipment for producing the lithium battery negative electrode material, the lithium battery negative electrode material is heated from inside to outside at the same time, so that the heating speed of the lithium battery negative electrode material is increased; through the arrangement of rotary heating, the heating uniformity of the negative electrode material of the lithium battery is ensured; and through the arrangement of rotary stirring, the heating uniformity of the lithium battery negative electrode material is further ensured.

Description

Technical Field

[0001] The utility model belongs to the field of production of lithium battery anode materials, and particularly relates to a heating device for producing lithium battery anode materials. Background Art

[0002] The heat treatment process can change the structure and properties of the anode material, thereby improving its conductivity and electrochemical performance. During the heat treatment process, the anode material is heated to a high temperature, then maintained at the high temperature for a certain period of time, and finally cooled to room temperature. During this process, the crystal structure of the anode material changes, thereby changing its electrochemical performance and improving the performance and lifespan of the lithium battery.

[0003] The Chinese patent with the comparative announcement number CN206563491U discloses an annealing device suitable for the preparation of power battery anode materials, including a heating furnace body and a refrigeration furnace body. An inlet is opened above the heating furnace body, a furnace cover is installed above the inlet, and an adiabatic handle is fixedly installed at one end of the furnace cover away from the inlet. A first furnace liner is fixedly arranged inside the heating furnace body, and a temperature sensor is fixedly arranged at the bottom of the heating furnace body. Electric heating sheets are arranged on the outer wall of the first furnace liner. One end of the first furnace liner is fixedly connected to a first discharge pipe, and the end of the first discharge pipe away from the first furnace liner extends into the refrigeration furnace body. A second furnace liner is fixedly arranged inside the refrigeration furnace body. One end of the second furnace liner is fixedly connected to the first discharge pipe, and the end of the second furnace liner away from the first discharge pipe is fixedly connected to a second discharge pipe. The end of the second discharge pipe away from the second furnace liner extends into the discharge box.

[0004] However, the above patent only heats from the outside to the inside, with a slow heating speed and poor uniformity. Therefore, a new device needs to be designed. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a heating device for producing lithium battery anode materials to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A heating device for producing the negative electrode material of a lithium battery, comprising a basket assembly for containing and heating the negative electrode material of the lithium battery, and further comprising a box body assembly for rotating and heating the negative electrode material of the lithium battery. A box cover assembly for closing and inserting into the interior of the negative electrode material of the lithium battery for stirring and heating is installed on the top of the box body assembly. The basket assembly is inserted into the interior of the box body assembly; the box body assembly includes a heating box, a heating jacket is installed circumferentially on the inner wall of the heating box, a first electrical socket is arranged on the outside of the heating box, a motor is installed at the bottom of the heating box, and a bearing bracket is installed at the output end of the motor; the box cover assembly includes a box cover body, a plurality of heating plates are evenly distributed under the box cover body, a second electrical socket is arranged in the middle of the top surface of the box cover body, two lifting rings are symmetrically arranged on the top surface of the box cover body, and a plurality of locking buttons are evenly distributed on the circumference of the box cover body.

[0008] Further: The basket assembly includes a basket body, a plurality of hanging holes are evenly distributed on the circumference of the top of the basket body, and a limiting groove is arranged at the bottom of the basket body.

[0009] Further: The basket body is made of Q235 steel material and is cylindrical.

[0010] Further: The heating jacket is bolted to the heating box.

[0011] Further: The bearing bracket is cross-shaped and is connected to the motor by a flat key.

[0012] Further: Four heating plates are evenly arranged, and the lifting rings are welded to the box cover body.

[0013] Compared with the prior art, the beneficial effects are:

[0014] 1. By setting the heating of the negative electrode material of the lithium battery from both inside and outside, the heating speed of the negative electrode material of the lithium battery is accelerated;

[0015] 2. By setting the rotation heating, the uniformity of heating of the negative electrode material of the lithium battery is ensured;

[0016] 3. By setting the rotation stirring, the uniformity of heating of the negative electrode material of the lithium battery is further ensured. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of a heating device for producing the negative electrode material of a lithium battery according to the present utility model;

[0018] Figure 2 is a schematic diagram of the box body assembly of a heating device for producing the negative electrode material of a lithium battery according to the present utility model;

[0019] Figure 3It is a top-down axonometric view of the basket assembly of a heating device for producing a negative electrode material of a lithium battery according to the present utility model;

[0020] Figure 4 It is a bottom-up axonometric view of the basket assembly of a heating device for producing a negative electrode material of a lithium battery according to the present utility model;

[0021] Figure 5 It is a schematic diagram of the lid assembly of a heating device for producing a negative electrode material of a lithium battery according to the present utility model.

[0022] In the reference numerals: 101, heating box; 102, heating jacket; 103, first electrical socket; 104, motor; 105, support bracket; 201, basket body; 202, lifting hole; 203, limiting groove; 301, lid body; 302, heating plate; 303, second electrical socket; 304, lifting ring; 305, lock. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 - 5 , a heating device for producing a negative electrode material of a lithium battery, including a basket assembly for containing and heating the negative electrode material of the lithium battery, and further including a box body assembly for rotating and heating the negative electrode material of the lithium battery. A lid assembly for closing and inserting into the interior of the negative electrode material of the lithium battery for stirring and heating is installed on the top of the box body assembly, and the basket assembly is inserted into the interior of the box body assembly.

[0025] In this embodiment: The box body assembly includes a heating box 101. A heating jacket 102 is installed circumferentially on the inner wall of the heating box 101. The heating jacket 102 is bolted to the heating box 101. A first electrical socket 103 is provided on the outside of the heating box 101. A motor 104 is installed at the bottom of the heating box 101. A support bracket 105 is installed at the output end of the motor 104. The support bracket 105 is cross-shaped and is connected to the motor 104 by a key. Powered by the first electrical socket 103, the heating jacket 102 raises the temperature of the inner wall of the heating box 101. At the same time, the motor 104 drives the support bracket 105 to drive the basket body 201 to rotate, so that the heating plate 302 stirs the negative electrode material of the lithium battery in the basket body 201;

[0026] In this embodiment: The basket assembly includes a basket body 201. The basket body 201 is made of Q235 steel material and is cylindrical. A number of hanging holes 202 are evenly distributed on the circumference of the top of the basket body 201. A limiting groove 203 is provided at the bottom of the basket body 201. First, pour the negative electrode material of the lithium battery into the basket body 201, and then lift the basket body 201 into the heating box 101 through the hanging holes 202, and insert it onto the supporting bracket 105 through the limiting groove 203;

[0027] In this embodiment: The lid assembly includes a lid body 301. Four heating plates 302 are evenly distributed under the lid body 301. A second electrical socket 303 is provided in the middle of the top surface of the lid body 301. Two hanging rings 304 are symmetrically arranged on the top surface of the lid body 301. The hanging rings 304 are welded to the lid body 301. A number of locking buttons 305 are evenly distributed on the circumference of the lid body 301. Lift the lid body 301 onto the heating box 101 through the hanging rings 304 and fix it through the locking buttons 305. At the same time, insert the heating plates 302 into the negative electrode material of the lithium battery, and supply power through the second electrical socket 303 to heat the negative electrode material of the lithium battery from the inside.

[0028] Working principle: First, pour the negative electrode material of the lithium battery into the basket body 201, then lift the basket body 201 into the heating box 101 through the hanging holes 202, and insert it onto the supporting bracket 105 through the limiting groove 203. Then, lift the lid body 301 onto the heating box 101 through the hanging rings 304 and fix it through the locking buttons 305. At the same time, insert the heating plates 302 into the negative electrode material of the lithium battery. Then, supply power through the first electrical socket 103 to increase the temperature of the inner wall of the heating box 101 by the heating sleeve 102. At the same time, the motor 104 drives the supporting bracket 105 to drive the basket body 201 to rotate, so that the heating plates 302 stir the negative electrode material of the lithium battery in the basket body 201, and supply power through the second electrical socket 303 to heat the negative electrode material of the lithium battery from the inside.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heating device for producing negative electrode materials for lithium batteries, comprising a basket assembly for holding and heating negative electrode materials for lithium batteries, characterized in that: It also includes a box assembly for rotating the negative electrode material of the lithium battery for heating, a box cover assembly for sealing and inserting the negative electrode material of the lithium battery for stirring and heating is installed on the top of the box assembly, and the basket assembly is inserted into the inside of the box assembly; The box assembly comprises a heating box (101), a heating sleeve (102) is installed on the circumference of the inner wall of the heating box (101), a first electrical socket (103) is arranged on the outer side of the heating box (101), a motor (104) is installed at the bottom of the heating box (101), and a support bracket (105) is installed at the output end of the motor (104); The box cover assembly comprises a box cover body (301), a plurality of heating plates (302) are evenly distributed below the box cover body (301), a second electrical socket (303) is arranged in the middle of the top surface of the box cover body (301), two hanging rings (304) are symmetrically arranged on the top surface of the box cover body (301), and a plurality of locking buckles (305) are evenly distributed around the circumference of the box cover body (301).

2. A heating device for producing negative electrode materials for lithium batteries according to claim 1, characterized in that: The basket assembly comprises a basket body (201), a plurality of hanging holes (202) are evenly distributed on the circumference of the top of the basket body (201), and a limiting groove (203) is arranged at the bottom of the basket body (201).

3. A heating device for producing negative electrode materials for lithium batteries according to claim 2, characterized in that: The basket body (201) is made of Q235 steel and is cylindrical.

4. The heating device for producing negative electrode materials for lithium batteries according to claim 1, characterized in that: The heating sleeve (102) and the heating box (101) are connected by bolts.

5. The heating device for producing negative electrode materials for lithium batteries according to claim 1, characterized in that: The support bracket (105) is cross-shaped and is key-connected to the motor (104).

6. The heating device for producing negative electrode materials for lithium batteries according to claim 1, characterized in that: Four heating plates (302) are evenly arranged, and the hanging ring (304) and the box cover body (301) are welded together.

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