Lithium ion battery pole piece coating table structure

Abstract

The utility model belongs to a lithium ion battery pole piece coating table structure in the technical field of lithium ion battery manufacturing. Comprising a coating table base (1) and a coating table body (2), a plurality of guide rails (3) arranged in parallel are arranged on the coating table base (1), a plurality of sliding blocks (4) are movably clamped on each guide rail (3), each sliding block (4) is connected with the bottom face of the coating table body (2), and the guide rails (3) are arranged from one side to the other side in the width direction of the coating table body (2) according to gaps. The multiple sliding blocks (4) on each guide rail (3) are arranged from one end to the other end in the length direction of the coating table body (2) according to gaps. The lithium ion battery pole piece coating table structure disclosed by the utility model is simple in structure, coating operation can be conveniently and quickly completed, the stability and high precision of the coating table body in the moving coating process are effectively ensured, and the coating thickness uniformity is prevented from being influenced by high-pressure coating, so that the manufacturing quality of a lithium ion battery is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium ion battery manufacturing, and more specifically relates to a lithium ion battery pole piece coating platform structure. Background Art

[0002] Lithium-ion battery coating is an essential step in lithium-ion battery manufacturing. During coating, high pressure must be applied to the semi-solid slurry, while the uniformity of the coating thickness must be controlled within 3%. Therefore, the coating process is quite demanding. However, existing technologies cannot guarantee the stability of the coating platform. Consequently, when subjected to high pressure, the coating platform will shift position, affecting the uniformity of the coating thickness and thus the quality of the finished product.

[0003] In the prior art, there is a technology named "A coating device for lithium-ion battery production" and with a publication number of "CN211026877U". This technology discloses a coating device for lithium-ion battery production, including a shell and a workbench. The workbench is mounted on the inner wall of the shell, a feed port is provided on the right side of the inner wall of the shell and below the workbench, a feed roller is mounted on the inner wall of the shell and below the workbench, and a coating assembly is mounted on the top of the workbench. The utility model provides a coating assembly, and two coating brushes on the coating assembly simultaneously coat the material on both sides. During the coating process, the coating can be stirred to prevent the coating in the coating box from settling. The material is then dried, thereby improving the coating efficiency of the coating device. Compared with a method of coating only one side at a time and then coating the other side after drying, the work is simpler, saves time and effort, reduces the labor intensity of the staff, improves the production efficiency of the device, and brings great convenience to the production of lithium-ion batteries.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application at all. Utility Model Content

[0005] The technical problem to be solved by the present invention is: in view of the shortcomings of the existing technology, a lithium-ion battery pole piece coating station structure is provided which has a simple structure, can conveniently and quickly complete the semi-solid battery coating operation, effectively ensures the stability and high precision of the coating station body during the mobile coating process, avoids the high-voltage coating affecting the coating thickness uniformity, and thus effectively improves the manufacturing quality of lithium-ion batteries.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0007] The utility model is a lithium-ion battery electrode coating table structure, which includes a coating table base and a coating table body. A plurality of parallel guide rails are arranged on the coating table base, and a plurality of sliders are movably mounted on each guide rail. Each slider is respectively connected to the bottom surface of the coating table body. The plurality of guide rails are arranged at intervals from one side to the other side along the width direction of the coating table body, and the plurality of sliders on each guide rail are arranged at intervals from one end to the other end along the length direction of the coating table body.

[0008] The length of the coating platform body is smaller than the length of the guide rail.

[0009] A coating bracket is arranged above the guide rail, and a slurry pressing device and a roller pressing device are installed on the coating bracket.

[0010] The slurry pressing device and the roller pressing device are located above the coating platform body.

[0011] The battery pole pieces to be coated are arranged on the upper surface of the coating platform body.

[0012] A plurality of guide rail assemblies are arranged on the coating platform base, each guide rail assembly comprises a plurality of guide rails arranged in parallel, and each guide rail assembly is connected to a corresponding coating platform body via a plurality of sliders.

[0013] A corresponding coating bracket is provided above each set of guide rail assemblies, and a slurry pressing device and a roller pressing device are installed on each coating bracket.

[0014] The slurry pressing device and the roller pressing device above each set of guide rail components are located above the corresponding coating station body.

[0015] The side surface of the guide rail is provided with a limiting recess extending along the length direction of the guide rail, and the lower part of the slider is provided with a clamping groove extending along the length direction of the slider.

[0016] Position limiting protrusions extending along the length direction of the slot are respectively provided on both sides of the slot.

[0017] The technical solution of this utility model is adopted, and the working principle and beneficial effects are as follows:

[0018] The lithium-ion battery pole piece coating platform structure described in the present invention is designed to achieve stability and high-precision control of the coating platform body. When the structure is set up, multiple parallel guide rails are set on the coating platform base. Multiple sliders are movably mounted on each guide rail, and each slider is connected to the bottom surface of the coating platform body. The connection between the coating platform body and the guide rails is achieved through multiple sliders. In addition, different sliders are located at different positions on the lower part of the coating platform body, so that they can be reliably connected to different parts of the coating platform body. The multiple guide rails are arranged with gaps from one side to the other along the width direction of the coating platform body, and the multiple sliders on each guide rail are arranged with gaps from one end to the other along the length direction of the coating platform body. In this way, the multiple guide rails cover the bottom of the coating platform body from the width direction, and the multiple sliders cover the bottom of the coating platform body from the length direction, so that the coating platform body can be reliably supported. During coating, the coating station is positioned at one end of the guide rail and then moves along it to the other end. The lithium-ion batteries on the coating station are sequentially coated with slurry by the slurry pressure coating device and then rolled by the roller pressing device. Multiple sliders are installed on each guide rail to support each coating station from different locations in the width and length directions, effectively improving support stability and ensuring that the coating station will not deform under high pressure. As the sliders move along the guide rail, the coating station will not shake randomly in length, width, or height, effectively ensuring the accuracy of the coating thickness and improving the processing quality of the lithium-ion batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents and symbols in the drawings of this specification:

[0020] Figure 1 This is a structural schematic diagram of the lithium-ion battery pole piece coating station structure described in the present invention;

[0021] Figure 2 This is a partial structural diagram of the lithium-ion battery pole piece coating station structure described in the present invention;

[0022] Figure 3 This is a partial structural diagram of the lithium-ion battery pole piece coating station structure described in the present invention;

[0023] The marks in the accompanying drawings are: 1. coating platform base; 2. coating platform body; 3. guide rail; 4. slider; 5. coating bracket; 6. slurry pressing device; 7. roller pressing device; 8. battery electrode to be coated; 9. guide rail assembly; 10. limiting recess; 11. slot; 12. limiting protrusion. DETAILED DESCRIPTION

[0024] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connections of the various components involved, the functions and working principles of the various components, etc., by referring to the accompanying drawings.

[0025] As attached Figure 1 -Attached Figure 3 As shown, the present invention is a lithium-ion battery electrode coating station structure, comprising a coating station base 1 and a coating station body 2. The coating station base 1 is provided with multiple parallel guide rails 3, each of which is movably mounted with multiple sliders 4. Each slider 4 is connected to the bottom surface of the coating station body 2. The multiple guide rails 3 are arranged at intervals from side to side along the width of the coating station body 2. The multiple sliders 4 on each guide rail 3 are arranged at intervals from one end to the other along the length of the coating station body 2. The above structure addresses the shortcomings of the existing technology and provides an improved technical solution. To achieve stability and high-precision control of the coating platform body, a plurality of parallel guide rails 3 are provided on the coating platform base 1 during structural configuration. Multiple sliders 4 are movably mounted on each guide rail 3. Each slider 4 is connected to the bottom surface of the coating platform body 2. The multiple sliders 4 connect the coating platform body 2 and the guide rails 3. Furthermore, different sliders 4 are located at different positions on the lower portion of the coating platform body 2, enabling reliable connection to different parts of the coating platform body 2. The multiple guide rails 3 are arranged with gaps from one side to the other along the width of the coating platform body 2. The multiple sliders 4 on each guide rail 3 are arranged with gaps from one end to the other along the length of the coating platform body 2. In this way, the multiple guide rails 3 cover the bottom of the coating platform body 2 in the width direction, and the multiple sliders 4 cover the bottom of the coating platform body 2 in the length direction, thereby reliably supporting the coating platform body 2. During the coating operation, the coating station body 2 is first located at one end of the guide rail 3, and then moves along the guide rail 3 to the other end. The lithium-ion batteries 8 on the coating station body 2 are sequentially subjected to slurry pressing by the slurry pressing device 6, and then subjected to slurry rolling by the rolling device 7. In this way, a plurality of sliders 4 are provided on each guide rail 3 to support each coating station body 2 from different positions in the width direction and the length direction, effectively improving the stability of the support, ensuring that when the coating station body 2 moves along the guide rail 3 through the sliders 4, it will not shake arbitrarily in the length, width, and height directions, effectively guaranteeing the accuracy of the coating thickness, and improving the processing quality of the lithium-ion battery. The lithium-ion battery pole piece coating station structure described in the utility model has a simple structure, can complete the coating operation conveniently and quickly, and effectively ensures the stability and high precision of the coating station body during the mobile coating process, avoids high-pressure coating affecting the uniformity of the coating thickness, and thus effectively improves the manufacturing quality of lithium-ion batteries.

[0026] The coating platform body 2 is shorter than the guide rails 3. In this structure, the shorter length of the coating platform body 2 determines the range of motion of the coating platform body 2. Movement of the coating platform body can be achieved by installing a telescopic cylinder on a mounting bracket on the coating platform base 1, with the other end of the telescopic cylinder connected to the coating platform body 2. Alternatively, a motor can be installed on the coating platform base 1, connected to a screw that extends parallel to the guide rails 3 and through the coating platform body 2.

[0027] A coating bracket 5 is provided above the guide rail 3, and a slurry coating device 6 and a roller pressing device 7 are mounted on the coating bracket 5. The slurry coating device 6 and the roller pressing device 7 are located above the coating platform body 2. The battery electrode 8 to be coated is arranged on the upper surface of the coating platform body 2. With the above structure, the lithium-ion battery 8 on the coating platform body 3 is coated and rolled during the movement of the coating platform body 2 connected to the guide rail 3 via the slider 4. The slurry coating is completed by the slurry coating device 6, and the rolling of the coated slurry is completed by the roller pressing device 7.

[0028] A plurality of guide rail assemblies 9 are provided on the coating platform base 1, and each guide rail assembly 9 includes a plurality of guide rails 3 arranged in parallel, and each guide rail assembly 9 is connected to a corresponding coating platform body 2 via a plurality of sliders 4. A corresponding coating bracket 5 is provided above each guide rail assembly 9, and a slurry pressing device 6 and a roller pressing device 7 are installed on each coating bracket 5. The slurry pressing device 6 and the roller pressing device 7 above each guide rail assembly 9 are located above the corresponding coating platform body 2. In order to improve the coating efficiency of the lithium-ion battery 8, the above structure provides a plurality of structures that can be coated simultaneously on the coating platform base 1. That is, a plurality of guide rail assemblies are provided, and a plurality of sliders 4 are installed on each guide rail assembly, and the sliders 4 of each guide rail assembly are connected to a coating platform body 2. The plurality of coating structures can perform coating operations simultaneously without interfering with each other.

[0029] The guide rail 3 is provided with a limiting recess 10 extending along the length direction of the guide rail 3 on the side, and a slot 11 is provided at the bottom of the slider 4, and the slot 11 extends along the length direction of the slider 4. The slot 11 is provided with limiting protrusions 12 extending along the length direction of the slot 11 on both sides. In order to improve the stability of the connection between the guide rail and the slider, the slider movably contacts the limiting recess of the guide rail through the slot, and the limiting protrusion 12 is engaged with the limiting recess 10. In this way, after the guide rail and the slider are connected, the two are ensured to be reliably connected, and the relative position of the two will not change easily when the slider is subjected to force, thereby ensuring that the coating station body can reliably carry the lithium-ion battery and ensure the stability of the coating.

[0030] The lithium-ion battery electrode coating platform structure described in the present invention is designed to achieve stability and high-precision control of the coating platform body. When the structure is set up, multiple parallel guide rails 3 are provided on the coating platform base 1. Each guide rail 3 is movably mounted with multiple sliders 4. Each slider 4 is connected to the bottom surface of the coating platform body 2. The multiple sliders 4 are used to connect the coating platform body 2 and the guide rails 3. Moreover, different sliders 4 are located at different positions on the bottom of the coating platform body 2, thereby achieving reliable connection with different parts of the coating platform body 2. The multiple guide rails 3 are arranged with gaps from one side to the other along the width direction of the coating platform body 2. The multiple sliders 4 on each guide rail 3 are arranged with gaps from one end to the other along the length direction of the coating platform body 2. In this way, the multiple guide rails 3 cover the bottom of the coating platform body 2 in the width direction, and the multiple sliders 4 cover the bottom of the coating platform body 2 in the length direction, thereby reliably supporting the coating platform body 2. During the coating operation, the coating station body 2 is first located at one end of the guide rail 3, and then moves along the guide rail 3 to the other end. The lithium-ion batteries 8 on the coating station body 2 are sequentially passed through the slurry pressing device 6 for slurry pressing, and then passed through the roller pressing device 7 for slurry rolling. In this way, multiple sliders 4 are set on each guide rail 3 to achieve support for each coating station body 2 from different parts in the width direction and length direction, effectively improving the stability of the support, ensuring that when the coating station body 2 moves along the guide rail 3 through the sliders 4, it will not shake arbitrarily in the length, width, and height directions, effectively ensuring the accuracy of the coating thickness and improving the processing quality of the lithium-ion batteries. The above is an exemplary description of the present invention in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A lithium-ion battery pole piece coating station structure, characterized by: The coating platform comprises a coating platform base (1) and a coating platform body (2). A plurality of parallel guide rails (3) are provided on the coating platform base (1). A plurality of sliders (4) are movably mounted on each guide rail (3). Each slider (4) is connected to the bottom surface of the coating platform body (2). The plurality of guide rails (3) are arranged at intervals from one side to the other side along the width direction of the coating platform body (2). The plurality of sliders (4) on each guide rail (3) are arranged at intervals from one end to the other end along the length direction of the coating platform body (2).

2. The lithium-ion battery pole piece coating station structure according to claim 1, characterized in that: The length of the coating platform body (2) is smaller than the length of the guide rail (3).

3. The lithium-ion battery pole piece coating station structure according to claim 1 or 2, characterized in that: A coating bracket (5) is provided above the guide rail (3), and a slurry pressing device (6) and a roller pressing device (7) are installed on the coating bracket (5).

4. The lithium-ion battery pole piece coating station structure according to claim 3, characterized in that: The slurry pressing device (6) and the roller pressing device (7) are located above the coating platform body (2).

5. The lithium-ion battery pole piece coating station structure according to claim 1 or 2, characterized in that: The battery pole piece (8) to be coated is arranged on the upper surface of the coating platform body (2).

6. The lithium-ion battery pole piece coating station structure according to claim 1 or 2, characterized in that: A plurality of guide rail assemblies (9) are provided on the coating platform base (1), each guide rail assembly (9) comprising a plurality of parallelly arranged guide rails (3), and each guide rail assembly (9) is connected to a corresponding coating platform body (2) via a plurality of sliders (4).

7. The lithium-ion battery pole piece coating station structure according to claim 6, characterized in that: A corresponding coating bracket (5) is provided above each set of guide rail assemblies (9), and a slurry pressing device (6) and a roller pressing device (7) are installed on each coating bracket (5).

8. The lithium-ion battery pole piece coating station structure according to claim 7, characterized in that: The slurry pressing device (6) and the roller pressing device (7) above each set of guide rail assemblies (9) are located above the corresponding coating platform body (2).

9. The lithium-ion battery pole piece coating station structure according to claim 1 or 2, characterized in that: A limiting recess (10) extending along the length direction of the guide rail (3) is provided on the side surface of the guide rail (3), and a clamping groove (11) is provided at the lower portion of the slider (4), and the clamping groove (11) extends along the length direction of the slider (4).

10. The lithium-ion battery pole piece coating station structure according to claim 9, characterized in that: Position limiting protrusions (12) extending along the length direction of the slot (11) are respectively provided on both sides of the slot (11).

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