Polymer lithium ion battery positive and negative electrode material coating device

Abstract

The utility model discloses a polymer lithium ion battery positive and negative electrode material coating device, which belongs to the technical field of lithium battery coating, and comprises a coating box, the left side surface of the coating box is fixedly connected with a drying box, two bearings are fixedly embedded in the inner wall of the coating box, the inner rings of the two bearings are jointly and fixedly connected with a coating roller, and the coating roller is fixedly connected with the drying box. A servo motor is installed on the back face of the coating box, the output end of the servo motor is fixedly connected with the rear end of the coating roller, a storage tank is fixedly connected to the inner bottom wall of the coating box, and the storage tank is located under the coating roller. The air in the drying box can be heated, the temperature of the air in the drying box can be monitored at any time, the drying fan is used for blowing, heating and drying the coating layers of the positive and negative electrode material rolls, the drying treatment of the coating layers of the positive and negative electrode material rolls is facilitated, and the coating efficiency and quality of the positive and negative electrode materials of the battery are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery coating, in particular to a device for coating positive and negative electrode materials of a polymer lithium ion battery. Background Art

[0002] Lithium batteries refer to batteries containing lithium (including metallic lithium, lithium alloys, lithium ions, and lithium polymers) in their electrochemical systems. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium battery coating refers to the process of coating active materials on the positive and negative electrodes of lithium ion batteries. The coating effect has a significant impact on battery capacity, internal resistance, cycle life, and safety. Therefore, in the manufacturing process of lithium ion batteries, coating equipment is often required to perform coating processes on the positive and negative electrode materials of lithium ion batteries.

[0003] However, the current lithium-ion battery positive and negative electrode material coating device still has certain shortcomings in use. After the coating of the battery positive and negative electrode materials is completed, the coating of the battery positive and negative electrode materials cannot be quickly dried, which reduces the coating efficiency and quality of the battery positive and negative electrode materials. Therefore, those skilled in the art provide a polymer lithium-ion battery positive and negative electrode material coating device to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a device for coating positive and negative electrode materials of a polymer lithium-ion battery to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A device for coating positive and negative electrode materials of polymer lithium-ion batteries, comprising a coating box, a drying box fixedly connected to the left side of the coating box, two bearings fixedly embedded in the inner wall of the coating box, a coating roller fixedly connected to the inner rings of the two bearings, a servo motor installed on the back of the coating box, the output end of the servo motor is fixedly connected to the rear end of the coating roller, a material storage tank is fixedly connected to the inner bottom wall of the coating box, the material storage tank is located directly below the coating roller, positive and negative electrode material rolls are arranged inside the coating box, and the left and right sides of the drying box are A U-shaped opening is opened, and the left end of the positive and negative electrode material rolls passes through the two U-shaped openings in sequence and extends to the outside of the drying box. The bottom surface of the positive and negative electrode material rolls is in contact with the upper surface of the coating roller. The inner wall of the drying box is fixedly connected with a heating network, and the heating network is located below the positive and negative electrode material rolls. A drying fan is fixedly embedded in the bottom surface of the drying box, and a temperature monitoring sensor is fixedly embedded in the upper surface of the drying box. A U-shaped groove is opened on the outer surface of the right end of the coating box, and the right end of the positive and negative electrode material rolls passes through the U-shaped groove and extends to the outside of the coating box.

[0007] As a further solution of the present invention: a PLC editing control panel is fixedly connected to the front of the drying box, and the PLC editing control panel is electrically connected to the servo motor, the heating network and the drying fan through wires.

[0008] As a further solution of the present invention: a temperature adjustment knob is fixedly connected to the front of the drying box, and the temperature adjustment knob is electrically connected to the heating network through a wire.

[0009] As a further solution of the present invention: a dustproof and breathable net is fixedly embedded on the front and back of the drying box, and the dustproof and breathable net is located in the upper middle part of the drying box.

[0010] As a further solution of the present invention: a group of brackets are fixedly connected to the side surfaces of the coating box and the drying box that are away from each other, and a guide roller is installed on the inner wall of each group of the brackets.

[0011] As a further solution of the present invention: a dust cover is fixedly connected to the bottom surface of the drying box, and the dust cover is located directly below the drying fan.

[0012] As a further solution of the present invention: the bottom surface of the drying box and the bottom surface of the coating box are fixedly connected to two supporting legs, the bottom end of each supporting leg is fixedly connected to a base plate, and the upper surface of each base plate is provided with two mounting holes.

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

[0014] The polymer lithium-ion battery positive and negative electrode material coating device, through the provided coating box, material storage tank, coating roller, guide roller and servo motor, can use the servo motor to drive the coating roller to rotate and dip the coating slurry inside the material storage tank, thereby realizing rotational coating of the bottom surface of the positive and negative electrode material rolls. The provided drying box, heating net, temperature monitoring sensor, drying fan and dust cover can heat the air inside the drying box and constantly monitor the air temperature inside the drying box. The drying fan can realize air blowing, heating and drying of the coating layers of the positive and negative electrode material rolls, thereby facilitating rapid drying of the coating layers of the positive and negative electrode material rolls and improving the coating efficiency and quality of the positive and negative electrode materials of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a device for coating positive and negative electrode materials for polymer lithium-ion batteries;

[0016] Figure 2 This is a rear view of a coating box in a device for coating positive and negative electrode materials for polymer lithium-ion batteries;

[0017] Figure 3This is a schematic diagram of the internal dissection structure of a coating box in a device for coating positive and negative electrode materials for polymer lithium-ion batteries;

[0018] Figure 4 This is a cross-sectional view of a top view of a coating box in a device for coating positive and negative electrode materials for a polymer lithium-ion battery.

[0019] In the figure: 1. Coating box; 2. Bearing; 3. Support leg; 4. Base plate; 5. PLC editing control panel; 6. Temperature adjustment knob; 7. Dust-proof and breathable net; 8. Temperature monitoring sensor; 9. Guide roller; 10. Positive and negative electrode material rolls; 11. U-shaped groove; 12. Servo motor; 13. Mounting hole; 14. Drying box; 15. Bracket; 16. U-shaped mouth; 17. Heating net; 18. Dust cover; 19. Drying fan; 20. Coating roller; 21. Storage trough. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] See also Figures 1 to 4In the embodiment of the present invention, a device for coating positive and negative electrode materials of a polymer lithium-ion battery comprises a coating box 1, a drying box 14 is fixedly connected to the left side of the coating box 1, two bearings 2 are fixedly embedded in the inner wall of the coating box 1, and the inner rings of the two bearings 2 are fixedly connected to a coating roller 20, a servo motor 12 is installed on the back of the coating box 1, the output end of the servo motor 12 is fixedly connected to the rear end of the coating roller 20, a material storage tank 21 is fixedly connected to the inner bottom wall of the coating box 1, and the material storage tank 21 is located directly below the coating roller 20, the interior of the coating box 1 is provided with positive and negative electrode material coils 10, and the left and right sides of the drying box 14 are fixedly connected to the coating roller 20. Both are provided with a U-shaped opening 16, and the left ends of the positive and negative electrode material rolls 10 pass through the two U-shaped openings 16 in sequence and extend to the outside of the drying box 14. The bottom surfaces of the positive and negative electrode material rolls 10 are in contact with the upper surface of the coating roller 20. The inner wall of the drying box 14 is fixedly connected with a heating net 17, and the heating net 17 is located below the positive and negative electrode material rolls 10. The bottom surface of the drying box 14 is fixedly embedded with a drying fan 19, and the upper surface of the drying box 14 is fixedly embedded with a temperature monitoring sensor 8. The outer surface of the right end of the coating box 1 is provided with a U-shaped groove 11, and the right ends of the positive and negative electrode material rolls 10 pass through the U-shaped groove 11 and extend to the outside of the coating box 1.

[0023] A PLC editing control panel 5 is fixedly connected to the front of the drying box 14. The PLC editing control panel 5 is electrically connected to the servo motor 12, the heating network 17 and the drying fan 19 through wires, which can more conveniently control this device and facilitate the coating operation of the positive and negative electrode materials of the battery. A temperature adjustment knob 6 is fixedly connected to the front of the drying box 14. The temperature adjustment knob 6 is electrically connected to the heating network 17 through a wire, and can regulate the heating network 17 to maintain a suitable drying temperature inside the drying box 14. The front and back of the drying box 14 are fixedly inlaid with a dust-proof and breathable net 7. The dust-proof and breathable net 7 is located in the middle and upper part of the drying box 14, which can facilitate the rapid circulation of dry air.

[0024] A group of brackets 15 are fixedly connected to the side of the coating box 1 and the drying box 14 away from each other, and the inner wall of each group of brackets 15 is installed with a guide roller 9, which can lift and guide the positive and negative electrode material rolls 10. The bottom of the drying box 14 is fixedly connected to a dust cover 18, and the dust cover 18 is located directly below the drying fan 19, which can blow air inside the drying box 14 to prevent dust, so as to facilitate the clean drying of the positive and negative electrode material rolls 10. The bottom of the drying box 14 and the bottom of the coating box 1 are fixedly connected with two supporting legs 3, and the bottom end of each supporting leg 3 is fixedly connected to a base plate 4. The upper surface of each base plate 4 is provided with two mounting holes 13, which can be used to install and fix the coating box 1, so as to facilitate the stable use of this device.

[0025] The working principle of the present utility model is: when in use, first install and fix the drying box 14 and the coating box 1 through the base plate 4, the mounting hole 13 and the supporting leg 3, then power on the device, and then fill the coating slurry into the storage tank 21 for storage, and then convey the positive and negative electrode material rolls 10 through the guide rollers 9 and the U-shaped mouth 16, and at the same time click the PLC editing control panel 5 to control the servo motor 12 to drive the coating roller 20 to rotate and dip the coating slurry inside the storage tank 21, and then rotate and coat the bottom surface of the positive and negative electrode material rolls 10, and the coated positive and negative electrode material rolls 10 enter the drying box 14, and at the same time control the heating net 17 to heat the air inside the drying box 14, and use the temperature monitoring sensor 8 to monitor the air temperature inside the drying box 14, and maintain the appropriate temperature inside the drying box 14 through the temperature adjustment knob 6, and then control the drying fan 19 to blow air and heat the coating of the positive and negative electrode material rolls 10 to achieve rapid drying of the coating of the positive and negative electrode material rolls 10.

[0026] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can make equivalent replacements or changes according to the technical solution and the utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be included in the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for coating positive and negative electrode materials of a polymer lithium-ion battery, comprising a coating box (1), characterized in that: The left side of the coating box (1) is fixedly connected to a drying box (14), the inner wall of the coating box (1) is fixedly inlaid with two bearings (2), the inner rings of the two bearings (2) are fixedly connected to a coating roller (20), a servo motor (12) is installed on the back of the coating box (1), the output end of the servo motor (12) is fixedly connected to the rear end of the coating roller (20), the inner bottom wall of the coating box (1) is fixedly connected to a storage tank (21), the storage tank (21) is located directly below the coating roller (20), the interior of the coating box (1) is provided with positive and negative electrode material rolls (10), the left and right sides of the drying box (14) are provided with U-shaped openings (16), the positive and negative electrode material rolls The left end of (10) passes through two U-shaped openings (16) in sequence and extends to the outside of the drying box (14), the bottom surface of the positive and negative electrode material rolls (10) contacts the upper surface of the coating roller (20), the inner wall of the drying box (14) is fixedly connected with a heating net (17), and the heating net (17) is located below the positive and negative electrode material rolls (10), the bottom surface of the drying box (14) is fixedly embedded with a drying fan (19), and the upper surface of the drying box (14) is fixedly embedded with a temperature monitoring sensor (8), the outer surface of the right end of the coating box (1) is provided with a U-shaped groove (11), and the right end of the positive and negative electrode material rolls (10) passes through the U-shaped groove (11) and extends to the outside of the coating box (1).

2. A polymer lithium-ion battery positive and negative electrode material coating device according to claim 1, characterized in that: A PLC editing control panel (5) is fixedly connected to the front of the drying box (14), and the PLC editing control panel (5) is electrically connected to the servo motor (12), the heating network (17) and the drying fan (19) through wires.

3. The device for coating positive and negative electrode materials of a polymer lithium-ion battery according to claim 1, characterized in that: A temperature adjustment knob (6) is fixedly connected to the front of the drying box (14), and the temperature adjustment knob (6) is electrically connected to the heating network (17) via a wire.

4. The device for coating positive and negative electrode materials of a polymer lithium-ion battery according to claim 1, characterized in that: The front side of the drying box (14) and the back side of the drying box (14) are both fixedly inlaid with a dustproof and breathable net (7), and the dustproof and breathable net (7) is located in the upper middle part of the drying box (14).

5. The device for coating positive and negative electrode materials of a polymer lithium-ion battery according to claim 1, characterized in that: A group of brackets (15) are fixedly connected to the side surfaces of the coating box (1) and the drying box (14) that are away from each other, and a guide roller (9) is installed on the inner wall of each group of brackets (15).

6. The device for coating positive and negative electrode materials of a polymer lithium-ion battery according to claim 1, characterized in that: A dust cover (18) is fixedly connected to the bottom surface of the drying box (14), and the dust cover (18) is located directly below the drying fan (19).

7. The device for coating positive and negative electrode materials of a polymer lithium-ion battery according to claim 1, characterized in that: The bottom surface of the drying box (14) and the bottom surface of the coating box (1) are fixedly connected to two supporting legs (3), the bottom end of each supporting leg (3) is fixedly connected to a base plate (4), and the upper surface of each base plate (4) is provided with two mounting holes (13).

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