Lithium battery pole piece coating device

Abstract

The utility model relates to the technical field of lithium battery processing, in particular to a lithium battery pole piece coating device which comprises a coating frame, coating equipment, a preheating frame and a drying box are mounted at the top of the coating rack, a battery pole piece is arranged in the coating equipment, and a preheating mechanism is mounted on the outer side in the preheating frame; the top of the drying box is fixedly connected with a gas treatment mechanism, the bottom of the treatment frame is fixedly connected with the drying box, air extraction equipment is installed in the treatment frame, the input end of the air extraction equipment communicates with an air inlet pipe, the other end of the air inlet pipe communicates with an air inlet cover, and the air cover is arranged in the drying box; when the drying device is used, the treatment frame is arranged above the drying box, the air extractor sucks harmful gas in the drying box into the filter frame through the air inlet pipe and the air inlet cover, the harmful gas is located in liquid, harmful substances in the harmful gas react with the liquid to be treated, emission of the harmful gas is reduced, and the environment is protected. And the life safety of workers is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery processing technical field, concretely is a kind of lithium battery pole piece coating device. BACKGROUND

[0002] Lithium battery is with lithium metal or lithium alloy as anode material, using non-aqueous electrolyte solution battery, usually need to be coated with the slurry of good stability, good viscosity, good fluidity on positive and negative pole current collector uniformly, pole piece coating has important significance to the capacity, consistency, safety etc.

[0003] After coating, the surface coating of lithium battery pole piece needs to be dried in time, and the existing drying mechanism uses hot air convection method to heat the material, and in the heating process, harmful gas in the coating on the surface of pole piece will overflow, which will pollute the workshop, and after long-term inhalation of the harmful gas by workers, the health of workers will be seriously affected, therefore, aiming at the above problems, a kind of lithium battery pole piece coating device is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of lithium battery pole piece coating device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of lithium battery pole piece coating device, including coating frame, coating equipment and battery pole piece;

[0006] The top of the coating frame is provided with coating equipment, preheating frame and drying box, the inside of the coating equipment is provided with battery pole piece, and the battery pole piece penetrates preheating frame and drying box;

[0007] The preheating frame is provided with preheating mechanism on the outside of the inside;

[0008] The top of the drying box is fixedly connected with gas treatment mechanism;

[0009] The gas treatment mechanism includes processing frame, air extraction equipment and air inlet pipe, the bottom of the processing frame is fixedly connected with drying box, the inside of the processing frame is provided with air extraction equipment, the input end of the air extraction equipment is communicated with air inlet pipe, and the other end of the air inlet pipe is communicated with air inlet cover, and the air inlet cover is arranged in the inside of drying box;

[0010] The output end of the air extraction equipment is communicated with exhaust pipe, and one end of the exhaust pipe is located in the inside of filter frame fixedly connected with processing frame;

[0011] The top of the processing frame is provided with exhaust hole.

[0012] Further, the outside of the exhaust pipe is provided with one-way valve.

[0013] Further, the inside of the filter frame is fixedly connected with a blocking plate, and a plurality of exhaust hoppers penetrating through the blocking plate are arranged on the surface of the blocking plate, and the exhaust hoppers are arranged in a narrow lower part and a wide upper part.

[0014] After the lithium battery pole piece is coated, the surface coating needs to be dried in time, and the existing drying mechanism uses the method of hot air convection to heat the material, and in the heating process, harmful gas in the coating on the surface of the pole piece will overflow, which will pollute the workshop, and after the workers inhale the harmful gas for a long time, the health of the workers will be seriously affected, and an external power supply is used in use, a treatment frame is arranged above the drying box, harmful gas in the drying box is sucked into the filter frame through the air inlet pipe and the air inlet cover, the harmful gas is located in the liquid, harmful substances in the harmful gas react with the liquid to be treated, the emission of harmful gas is reduced, and the life safety of workers is ensured.

[0015] Further, the preheating mechanism comprises a hollow frame and a hollow pipe, the outer side of the hollow frame is fixedly connected with the preheating frame, and the bottom of the hollow frame is fixedly connected with a fan and a heater, and the end face in contact with the fan and the heater is in communication;

[0016] One side of the hollow frame is communicated with two groups of hollow pipes arranged in an up-down distribution.

[0017] Further, uniform distribution of air holes is formed in the opposite end face of the hollow pipe, and the top of the heater is in communication with the hollow frame.

[0018] When drying, the efficiency of heat energy penetration and conduction from the substrate surface to the coating material is low, so that the coating is unevenly heated during the drying process, surface drying is generated, cracks are easily generated, and finally the drying effect is restricted, and the preheating frame and the preheating mechanism are arranged in the device, external air is brought into the heater inside the fan, the heating net in the heater inside the heater heats the air, and then is discharged to the hollow frame inside, and finally is discharged from the air holes on one side of the hollow pipe, and since the hollow pipe is arranged in two groups, the upper and lower sides of the pole piece can be preheated synchronously, and the drying quality is ensured.

[0019] Compared with the prior art, the beneficial effects of the present application are:

[0020] In use, a treatment frame is arranged above the drying box, harmful gas in the drying box is sucked into the filter frame through the air inlet pipe and the air inlet cover, the harmful gas is located in the liquid, harmful substances in the harmful gas react with the liquid to be treated, the emission of harmful gas is reduced, and the life safety of workers is ensured;

[0021] And in the filter frame inside the setting has the baffle and the exhaust hopper, at this moment can guarantee the gas in the liquid stay time, ensure its full reaction, and the setting check valve guarantee gas one-way flow, avoid liquid backflow and influence the use of the air extraction equipment;

[0022] When drying, the efficiency of heat energy penetration and conduction from the substrate surface to the coating material is low, so the coating is unevenly heated during the drying process, surface drying occurs, cracks are easy to produce, and finally the drying effect is restricted, and the preheating frame and the preheating mechanism are arranged, external air is brought into the heater inside by the fan, the heating net in the heater heats the air, and then the air is discharged into the hollow frame, and finally the air is discharged from the air hole on one side of the hollow pipe, since the hollow pipe is arranged in two groups, the upper and lower sides of the pole piece can be preheated synchronously, and the drying quality is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an overall structure schematic view of the utility model;

[0024] Figure 2 It is a structure schematic view of the preheating mechanism of the utility model;

[0025] Figure 3 It is a structure schematic view of the gas treatment mechanism of the utility model.

[0026] In the drawing: 1, coating frame; 2, coating equipment; 3, battery pole piece; 4, preheating frame; 5, preheating mechanism; 501, hollow frame; 502, hollow pipe; 503, air hole; 504, fan; 505, heater; 6, drying box; 7, gas treatment mechanism; 701, treatment frame; 702, air extraction equipment; 703, air inlet pipe; 704, air inlet cover; 705, air outlet pipe; 706, filter frame; 707, baffle; 708, exhaust hopper; 709, air hole; 710, check valve. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to 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 the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] Embodiment 1: please refer to Figure 1 and Figure 3 The utility model provides a technical scheme:

[0029] A lithium battery pole piece coating device, including coating frame 1, coating equipment 2 and battery pole piece 3;

[0030] The top of the coating frame 1 is provided with a coating device 2, a preheating frame 4 and a drying box 6, the inside of the coating device 2 is provided with a battery pole piece 3, and the battery pole piece 3 penetrates through the preheating frame 4 and the drying box 6;

[0031] The inside of the preheating frame 4 is provided with a preheating mechanism 5;

[0032] The top of the drying box 6 is fixedly connected with a gas treatment mechanism 7;

[0033] The gas treatment mechanism 7 comprises a treatment frame 701, an exhaust device 702 and an air inlet pipe 703, the bottom of the treatment frame 701 is fixedly connected with the drying box 6, the inside of the treatment frame 701 is provided with the exhaust device 702, the input end of the exhaust device 702 is communicated with the air inlet pipe 703, the other end of the air inlet pipe 703 is communicated with an air inlet cover 704, and the air inlet cover 704 is arranged in the inside of the drying box 6;

[0034] The output end of the exhaust device 702 is communicated with an exhaust pipe 705, and one end of the exhaust pipe 705 is located in the inside of a filter frame 706 fixedly connected with the treatment frame 701;

[0035] The top of the treatment frame 701 is provided with an exhaust hole 709.

[0036] The outside of the exhaust pipe 705 is provided with a one-way valve 710.

[0037] The inside of the filter frame 706 is fixedly connected with a baffle plate 707, and a plurality of exhaust hoppers 708 penetrating through the baffle plate 707 are arranged on the surface of the baffle plate 707, and the exhaust hoppers 708 are arranged in a narrow-to-wide manner from bottom to top.

[0038] After the lithium battery pole piece is coated, the surface coating needs to be dried in time, and the existing drying mechanism uses the method of hot air convection to heat the material, which will cause harmful gas in the coating on the surface of the pole piece to overflow during the heating process. This harmful gas will pollute the workshop, and after the workers inhale this harmful gas for a long time, it will seriously affect the health of the workers, and an external power supply is used when in use, and the treatment frame 701 is arranged above the drying box 6, the exhaust device 702 sucks the harmful gas in the inside of the drying box 6 into the inside of the filter frame 706 through the air inlet pipe 703 and the air inlet cover 704, the harmful gas is in the liquid, the harmful substances in the harmful gas react with the liquid to be treated, the emission of harmful gas is reduced, and the safety of the workers is ensured;

[0039] In this embodiment, the blocking plate 707 and the exhaust hopper 708 are arranged inside the filtering frame 706, so that the time for the gas to stay in the liquid can be ensured, and the one-way valve 710 is arranged to ensure the one-way flow of the gas, thereby avoiding the backflow of the liquid and affecting the use of the air extraction device 702.

[0040] The liquid in the filtering frame 706 can be configured according to the specific components of the harmful substances, so that the harmful gas can be effectively treated, and the treated gas can be discharged through the exhaust hole 709, thereby reducing the environmental impact on the workshop.

[0041] Embodiment 2: This embodiment is an improvement on embodiment 1, please refer to Figure 2 Specifically, the preheating mechanism 5 includes a hollow frame 501 and a hollow pipe 502, the outer side of the hollow frame 501 is fixedly connected with the preheating frame 4, the bottom of the hollow frame 501 is fixedly connected with a fan 504 and a heater 505, and the end face in contact with the fan 504 and the heater 505 is in communication.

[0042] One side of the hollow frame 501 is in communication with two groups of hollow pipes 502 arranged in an up-down distribution.

[0043] The opposite end face of the hollow pipe 502 is provided with uniformly distributed air holes 503, and the top of the heater 505 is in communication with the hollow frame 501.

[0044] When drying, the efficiency of heat energy penetration and conduction from the substrate surface to the coating material is low, so that the coating is unevenly heated during the drying process, resulting in surface drying and easy cracking, which ultimately restricts the drying effect. The preheating frame 4 and the preheating mechanism 5 are arranged in the device, the external air is brought into the heater 505 by the fan 504, the heating net in the heater 505 heats the air, and then the air is discharged into the hollow frame 501, and finally discharged from the air holes 503 on one side of the hollow pipe 502. Since the hollow pipe 502 is arranged in two groups, the upper and lower sides of the pole piece can be preheated synchronously, and the drying quality of the subsequent process can be ensured.

[0045] In this embodiment, the heater 505 is internally provided with a heating net, the air is heated after passing through the heating net, and then discharged into the hollow frame 501, and then discharged through the air holes 503 on the outer sides of the two groups of hollow pipes 502. At this time, the two sides of the pole piece can be effectively dried.

[0046] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0047] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A lithium battery pole piece coating device, characterized in that: Including coating frame (1), coating equipment (2) and battery pole piece (3);The top of coating frame (1) is provided with coating equipment (2), preheating frame (4) and drying box (6), the inside of coating equipment (2) is provided with battery pole piece (3), and battery pole piece (3) penetrates preheating frame (4) and drying box (6);The inside of preheating frame (4) is provided with preheating mechanism (5) outside; The top of drying box (6) is fixedly connected with gas treatment mechanism (7); The gas treatment mechanism (7) includes processing frame (701), exhaust equipment (702) and gas inlet pipe (703), the bottom of processing frame (701) is fixedly connected with drying box (6), the inside of processing frame (701) is provided with exhaust equipment (702), the input end of exhaust equipment (702) is communicated with gas inlet pipe (703), and the other end of gas inlet pipe (703) is communicated with gas inlet cover (704), and the gas inlet cover (704) is arranged in the inside of drying box (6); The output end of exhaust equipment (702) is communicated with exhaust pipe (705), and one end of exhaust pipe (705) is located in the inside of filter frame (706) fixedly connected with processing frame (701);The top of processing frame (701) is provided with exhaust hole (709).

2. The lithium battery pole piece coating device according to claim 1, wherein: The outside of exhaust pipe (705) is provided with one-way valve (710).

3. The lithium battery pole piece coating device according to claim 1, wherein: The inside of filter frame (706) is fixedly connected with baffle (707), and a plurality of exhaust hoppers (708) penetrating baffle (707) are arranged on the surface of baffle (707), and the exhaust hoppers (708) are arranged in a narrow lower and wide upper manner.

4. The lithium battery pole piece coating device according to claim 1, wherein: The preheating mechanism (5) includes hollow frame (501) and hollow pipe (502), the outside of hollow frame (501) is fixedly connected with preheating frame (4), the bottom of hollow frame (501) is fixedly connected with fan (504) and heater (505), and the end face of fan (504) and heater (505) in contact is communicated; One side of hollow frame (501) is communicated with two groups of hollow pipes (502) distributed in an upper and lower manner.

5. The lithium battery pole piece coating device according to claim 4, wherein: The opposite end face of hollow pipe (502) is provided with uniformly distributed air holes (503), and the top of heater (505) is communicated with hollow frame (501).

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