Ternary lithium electric sintering furnace device

Abstract

The utility model relates to the technical field of lithium battery sintering furnaces, and discloses a ternary lithium battery sintering furnace device which comprises a mounting cover matched with a sintering furnace, a driving motor is arranged at the upper end of the mounting cover, a reciprocating lead screw is rotatably arranged at the lower end of the mounting cover, and the upper end of the reciprocating lead screw is fixedly connected with the output end of the driving motor. The reciprocating screw rod is in threaded connection with a lifting cylinder, a reciprocating plate is rotatably arranged on the periphery of the lifting cylinder, guide rods which are oppositely arranged are fixedly connected to the lower end of the mounting cover and penetrate through the reciprocating plate, and connecting rods which are oppositely arranged are fixedly connected to the reciprocating plate; the lower end of the connecting rod is fixedly connected with a containing box matched with the lithium battery positive electrode material, the guide rods penetrate through the containing box, the reciprocating lead screw is in threaded connection with the containing box, and the lifting cylinder is fixedly connected with L-shaped stirring rods which are oppositely arranged and matched with the containing box and the lithium battery positive electrode material. Compared with the prior art, the reaction kettle has the advantage that the reaction is more sufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery sintering furnaces, in particular to a ternary lithium battery sintering furnace device. Background Art

[0002] Ternary lithium battery is one of the battery technologies widely used in electric vehicles and mobile electronic devices. In the manufacturing process of ternary lithium battery, sintering is an important step, which is used to combine the positive electrode material, negative electrode material and electrolyte layer with each other.

[0003] Before sintering, the positive electrode material and the negative electrode material need to be prepared, and then the positive electrode material mixed slurry is coated on the conductive aluminum foil, and the negative electrode material is coated on the conductive copper foil. The positive and negative electrode materials are respectively removed from the solvent by baking or the like to form dry electrode sheets. Finally, the positive and negative electrode sheets are stacked together and a layer of electrolyte is added to form a stacked electrode sheet. These stacked electrode sheets are placed in a sintering furnace and sintered at high temperature. Sintering can form a good bond between the active material and the conductive agent in the electrode sheet and improve the mechanical strength of the electrode sheet.

[0004] When sintering the positive electrode material of the lithium battery, the material needs to be loaded into a sagger, which is then placed in a sintering furnace. The material is sintered at high temperature and taken out of the furnace after sintering. In order to improve production efficiency, a large-volume and large-capacity sagger is used. Although it can hold more material, it can easily lead to the material at the bottom and center of the sagger not being able to fully contact the sintering atmosphere, resulting in insufficient reaction and low sintering quality. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The technical problem to be solved by the utility model is that currently in order to improve production efficiency, a large-volume and large-capacity sagger is used, which will cause the positive electrode material of the lithium battery to accumulate in the sagger, affecting the full contact between part of the positive electrode material of the lithium battery and the sintering atmosphere, resulting in insufficient reaction and low sintering quality.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a ternary lithium battery sintering furnace device, comprising a mounting cover that cooperates with the sintering furnace, the upper end of the mounting cover is provided with a driving motor, the lower end of the mounting cover is rotatably provided with a reciprocating screw, the upper end of the reciprocating screw is fixedly connected to the output end of the driving motor, the reciprocating screw is threadedly connected to a lifting cylinder, the lifting cylinder is provided with a reciprocating plate for circumferential rotation, the lower end of the mounting cover is fixedly connected with relatively arranged guide rods, the guide rods all pass through the reciprocating plate, the reciprocating plate is fixedly connected with relatively arranged connecting rods, the lower end of the connecting rod is fixedly connected with a loading box that cooperates with the positive electrode material of the lithium battery, the guide rods all pass through the loading box, the reciprocating screw is threadedly connected to the loading box, and the lifting cylinder is fixedly connected with a relatively arranged L-shaped stirring rod that cooperates with the loading box and the positive electrode material of the lithium battery.

[0009] As an improvement, the lower ends of the guide rods are fixedly connected with limit blocks that cooperate with the containing box.

[0010] As an improvement, the connecting rod, the containing box and the reciprocating plate are coated with a protective layer, and the protective layer is used to prevent the connecting rod, the containing box and the reciprocating plate from being affected by the sintering process.

[0011] As an improvement, the mounting cover is provided with mounting holes that match the sintering furnace.

[0012] As an improvement, a soft pad cooperating with the containing box is adhered to the limit block.

[0013] As an improvement, a thread groove cooperating with the reciprocating screw rod is provided in the lifting cylinder.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model has the following advantages: the installation cover is fixedly installed on the top of the sintering furnace, the containing box is extended into the sintering furnace, the lithium battery positive electrode material to be sintered is placed in the containing box, and the driving motor and the screw rod are used to drive the containing box to move up and down, and the L-shaped stirring rod can stir the lithium battery positive electrode material, so as to avoid the accumulation of the lithium battery positive electrode material and make the reaction more sufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional ternary lithium battery sintering furnace device of the utility model. Figure 1 .

[0017] Figure 2 It is a three-dimensional ternary lithium battery sintering furnace device of the utility model. Figure 2 .

[0018] Figure 3 The utility model is a structural schematic diagram of a lifting cylinder and an L-shaped stirring rod of a ternary lithium battery sintering furnace device.

[0019] As shown in the figure: 1. Installation cover; 2. Driving motor; 3. Reciprocating screw; 4. Lifting cylinder; 5. Reciprocating plate; 6. Guide rod; 7. Limit block; 8. Container; 9. Connecting rod; 10. L-shaped stirring rod; 11. Threaded groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the ternary lithium battery sintering furnace device includes a mounting cover 1 that cooperates with the sintering furnace, the mounting cover 1 is provided with mounting holes that cooperate with the sintering furnace, the upper end of the mounting cover 1 is provided with a driving motor 2, the lower end of the mounting cover 1 is rotatably provided with a reciprocating screw rod 3, the upper end of the reciprocating screw rod 3 is fixedly connected to the output end of the driving motor 2, the reciprocating screw rod 3 is threadedly connected with a lifting cylinder 4, the lifting cylinder 4 is provided with a thread groove 11 that cooperates with the reciprocating screw rod 3, the lifting cylinder 4 is provided with a reciprocating plate 5 for circumferential rotation, and the lower end of the mounting cover 1 is fixedly connected with guide rods 6 that are arranged oppositely, and the guide rods 6 all pass through the reciprocating plate 5.

[0023] How to drive the reciprocating plate 5 and the containing box 8 to reciprocate and lift, and stir the lithium battery positive electrode material in the containing box 8, the specific structure is as follows:

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the reciprocating plate 5 is fixedly connected with connecting rods 9 arranged relatively to each other, the lower end of the connecting rod 9 is fixedly connected with a containing box 8 matched with the positive electrode material of the lithium battery, the guide rods 6 all pass through the containing box 8, the reciprocating screw rod 3 is threadedly connected with the containing box 8, and the lifting cylinder 4 is fixedly connected with an L-shaped stirring rod 10 arranged relatively to each other and matched with the containing box 8 and the positive electrode material of the lithium battery, the connecting rod 9, the containing box 8 and the reciprocating plate 5 are all coated with a protective layer, and the protective layer is used to prevent the connecting rod 9, the containing box 8 and the reciprocating plate 5 from being affected by the sintering process.

[0025] Through the above structure, the reciprocating plate 5 and the containing box 8 can be driven to rise and fall back and forth, and the positive electrode material of the lithium battery in the containing box 8 can be stirred.

[0026] Embodiment 2

[0027] like Figure 1 and Figure 2 As shown, the lower ends of the guide rods 6 are fixedly connected with limit blocks 7 that cooperate with the containing box 8, and the limit blocks 7 are adhered with soft pads that cooperate with the containing box 8.

[0028] Through the above structure, the limiting block 7 can limit the containing box 8, and the soft cushion can prevent the limiting block 7 from colliding with the containing box 8.

[0029] When the utility model is implemented specifically, before sintering the positive electrode material of the lithium battery, the installation cover is first fixedly installed on the top of the sintering furnace by using the installation holes and bolts. At this time, the loading box extends into the interior of the sintering furnace, and then the positive electrode material of the lithium battery to be sintered is placed in the loading box, and sintering can begin. During the sintering process, the driving motor is turned on, and the output end of the driving motor drives the reciprocating screw rod to rotate forward and reverse. When the reciprocating screw rod rotates forward, with the cooperation of the guide plate and the loading box, the reciprocating plate and the loading box will descend. At this time, the lifting cylinder rotates relative to the reciprocating plate, and the L-shaped stirring rod will rotate at the same time to stir the positive electrode material of the lithium battery. When the reciprocating screw rod reverses, the reciprocating plate and the loading box will rise, and the L-shaped stirring rod will rotate in the opposite direction, and the positive electrode material of the lithium battery can also be stirred. In this way, during the lifting process of the positive electrode material of the lithium battery, it can be synchronously stirred by the L-shaped stirring rod, so that the positive electrode material of the lithium battery can be avoided from piling up, and the situation that some positive electrode materials of the lithium battery are not fully reacted can be avoided, thereby improving the sintering quality.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0032] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A ternary lithium battery sintering furnace device, characterized in that: It comprises a mounting cover (1) matched with a sintering furnace, the upper end of the mounting cover (1) is provided with a driving motor (2), the lower end of the mounting cover (1) is rotatably provided with a reciprocating screw rod (3), the upper end of the reciprocating screw rod (3) is fixedly connected to the output end of the driving motor (2), the reciprocating screw rod (3) is threadedly connected with a lifting cylinder (4), the lifting cylinder (4) is provided with a reciprocating plate (5) for circumferential rotation, and the lower end of the mounting cover (1) is fixedly connected with guide rods (6) arranged opposite to each other, and the guide rods (6) all penetrate the reciprocating plate (5); The reciprocating plate (5) is fixedly connected with a connecting rod (9) arranged oppositely, the lower end of the connecting rod (9) is fixedly connected with a containing box (8) matched with the positive electrode material of the lithium battery, the guide rod (6) all penetrates the containing box (8), the reciprocating screw rod (3) is threadedly connected with the containing box (8), and the lifting cylinder (4) is fixedly connected with an L-shaped stirring rod (10) arranged oppositely and matched with the containing box (8) and the positive electrode material of the lithium battery.

2. The ternary lithium battery sintering furnace device according to claim 1, characterized in that: The lower ends of the guide rods (6) are fixedly connected with limit blocks (7) that cooperate with the containing box (8).

3. The ternary lithium battery sintering furnace device according to claim 1, characterized in that: The connecting rod (9), the containing box (8) and the reciprocating plate (5) are all coated with a protective layer, and the protective layer is used to prevent the connecting rod (9), the containing box (8) and the reciprocating plate (5) from being affected by the sintering process.

4. The ternary lithium battery sintering furnace device according to claim 1, characterized in that: The installation cover (1) is provided with installation holes that match the sintering furnace.

5. The ternary lithium battery sintering furnace device according to claim 2, characterized in that: A soft pad that matches the containing box (8) is adhered to the limiting block (7).

6. The ternary lithium battery sintering furnace device according to claim 1, characterized in that: The lifting cylinder (4) is provided with a thread groove (11) which cooperates with the reciprocating screw rod (3).

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