Pole piece cooling device for lithium ion battery production

Abstract

The utility model discloses a pole piece cooling device for lithium ion battery production, which comprises a cooling roller and a heat exchange mechanism, the cooling roller is arranged on at least two groups of bearing driving components in a manner of inclining a certain angle, each group of bearing driving components comprises two riding wheels symmetrically arranged at the bottom of the cooling roller, the riding wheels are rotatably connected with a base, and the heat exchange mechanism is arranged on the base. The riding wheels are connected with driving mechanisms; an outer sleeve is arranged on the outer side of the cooling roller, the bottom of the outer sleeve is fixedly connected with a supporting seat, two sealing seats are arranged in the outer sleeve, sealing rings are installed on the sealing seats, and a sealing area is formed between the two sealing rings. According to the pole piece cooling device, heat exchange is carried out through the cooling roller and the high-temperature pole piece, air cooling heat dissipation is carried out through the air cooling fan in an auxiliary mode, through the synergistic effect of the two aspects, the pole piece can be rapidly cooled, and the cooling effect is good. In addition, the pole pieces are conveyed through the rotating cooling roller, the pole pieces are cooled while being conveyed, continuous work can be achieved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a pole piece cooling device used in the production of lithium ion batteries. Background Art

[0002] Lithium-ion batteries are the core of modern energy technology, especially in the new energy vehicle industry. In the manufacturing process of lithium-ion batteries, the drying of pole pieces is an important link. Traditional methods mostly use a single-box baking process, and adopt natural or forced cooling after baking. This method not only takes up a lot of equipment resources, but also has low cooling efficiency and takes up to 12 to 24 hours, which increases production costs and requires constant monitoring by staff. Existing cooling devices have disadvantages such as low cooling efficiency, can only load and unload materials in batches, and low work efficiency, which affects production efficiency.

[0003] How to effectively cool the electrodes of lithium batteries is a problem that needs to be solved urgently. Utility Model Content

[0004] 1. Technical problems to be solved:

[0005] In view of the above technical problems, the utility model provides a pole piece cooling device for lithium ion battery production.

[0006] 2. Technical solution:

[0007] A pole piece cooling device for lithium ion battery production comprises a cooling roller and a heat exchange mechanism, wherein the cooling roller is arranged at a certain angle on at least two groups of supporting drive components, each group of supporting drive components comprises two supporting wheels symmetrically arranged at the bottom of the cooling roller, the supporting wheels are rotatably connected to a base, and the supporting wheels are connected to the driving mechanism; an outer sleeve is arranged on the outside of the cooling roller, the bottom of the outer sleeve is fixedly connected to a support seat, two sealing seats are arranged inside the outer sleeve, sealing rings are installed on the sealing seats, a sealing area is formed between the two sealing rings, an air inlet connected to the sealing area is arranged on the top of the outer sleeve, the air inlet is connected to an air intake fan through a pipeline, the air intake fan is connected to an outlet of a heat exchanger through a pipeline, an inlet is arranged on the heat exchanger, and an air outlet connected to the sealing area is arranged at the bottom of the outer sleeve.

[0008] Furthermore, the driving mechanism includes a motor and a gear transmission assembly.

[0009] Furthermore, the cooling roller is connected to the outer sleeve via two bearings, and the two bearings are respectively arranged on the outsides of the two sealing seats.

[0010] Furthermore, a plurality of fins are provided in the sealing area, and the fins are fixed to the side of the cooling roller. Preferably, the fins are annular structures and are fixedly sleeved on the side of the cooling roller.

[0011] Furthermore, the pole piece cooling device also includes an air cooling mechanism, which includes an air cooling fan. The air cooling fan is opened at the higher end of the cooling roller. An air intake bin is provided on the back of the air cooling fan. The air intake bin is connected to the outlet of the heat exchanger through a hose. The side of the outer shell of the air cooling fan is hinged with an L-shaped connecting rod, and the connecting rod is fixedly connected to the side of the outer sleeve.

[0012] Furthermore, an air intake valve is provided on the air intake bin, and the air intake valve is connected to a hose.

[0013] 3. Beneficial effects:

[0014] The pole piece cooling device of the utility model exchanges heat with the high-temperature pole piece through the cooling roller, and uses an air-cooling fan to perform air-cooling and heat dissipation. The two aspects work together to quickly cool the pole piece and achieve a good cooling effect. In addition, the pole piece is conveyed by the rotating cooling roller, and the pole piece is cooled while being conveyed, so that continuous and uninterrupted work can be achieved, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the pole piece cooling device of the utility model;

[0016] Figure 2 It is a cross-sectional view of the pole piece cooling device of the utility model;

[0017] Figure 3 It is a side view of the cooling roller and the outer sleeve of the utility model;

[0018] Figure 4 This is a schematic diagram of the installation structure of the air-cooling fan of the utility model. DETAILED DESCRIPTION

[0019] The utility model is described in detail below in conjunction with the accompanying drawings.

[0020] As attached Figure 1 To Attachment Figure 4 ,

[0021] Specific embodiment: A pole piece cooling device for lithium ion battery production, comprising a cooling roller 1 and a heat exchange mechanism, wherein the cooling roller 1 is arranged at a certain angle on at least two groups of supporting drive components 2, each group of supporting drive components 2 comprises two supporting wheels 3 symmetrically arranged at the bottom of the cooling roller 1, the supporting wheels 3 are rotatably connected to the base 4, and the supporting wheels 3 are connected to the driving mechanism; an outer sleeve 5 is provided on the outside of the cooling roller 1, the bottom of the outer sleeve 5 is fixedly connected to the support seat 6, two sealing seats 7 are provided inside the outer sleeve 5, sealing rings 8 are installed on the sealing seats 7, and a sealing area 9 is formed between the two sealing rings 8, an air inlet 10 connected to the sealing area 9 is provided on the top of the outer sleeve 5, the air inlet 10 is connected to the air intake fan 11 through a pipeline, the air intake fan 11 is connected to the outlet of the heat exchanger 12 through a pipeline, the heat exchanger 12 is provided with an inlet, and an air outlet 13 connected to the sealing area 9 is provided at the bottom of the outer sleeve 5.

[0022] The working principle of the pole piece cooling device of the utility model: in actual use, the temperature of the cooling roller 1 is first lowered by the heat exchange mechanism, the air intake fan 11 works to draw the gas into the heat exchanger 12 for heat exchange, the low-temperature gas enters the sealing area 9, and the temperature of the cooling roller 1 is rapidly reduced in the low-temperature environment. The cooling roller 1 is driven to rotate by the driving mechanism, and the pole piece to be cooled is placed at the higher side port of the cooling roller 1. Since the cooling roller 1 is inclined, when the cooling roller 1 rotates, the pole piece slowly moves to the lower end, and the pole piece transfers the heat to the cooling roller 1 after contacting the cooling roller 1, so as to be cooled rapidly.

[0023] The driving mechanism includes a motor and a gear transmission assembly. The gear transmission assembly is a common design in the prior art, and its structure will not be described in detail here.

[0024] The cooling roller 1 is connected to the outer sleeve 5 via two bearings 14 , and the two bearings 14 are respectively arranged on the outsides of the two sealing seats 7 .

[0025] A plurality of fins 15 are provided in the sealing area, and the fins 15 are fixed to the side of the cooling roller 1. Preferably, the fins 15 are annular structures and are fixedly sleeved on the side of the cooling roller 1. The fins 15 can increase the surface contact area and accelerate the heat exchange between the cooling roller 1 and the cryogenic gas.

[0026] The pole piece cooling device also includes an air cooling mechanism, which includes an air cooling fan 16, which opens at the higher end of the cooling roller 1, and an air inlet bin 17 is provided on the back of the air cooling fan 16, which is connected to the outlet of the heat exchanger 12 through a hose, and an L-shaped connecting rod 18 is hinged on the side of the outer shell of the air cooling fan 16, and the connecting rod 18 is fixedly connected to the side of the outer sleeve 5. The air cooling fan 16 blows out cold air to accelerate the flow of gas inside the cooling roller 1, and the cold air and the pole piece quickly exchange heat, thereby increasing the cooling effect. The air cooling fan 16 can be turned on and placed aside during feeding.

[0027] An air intake valve is provided on the air intake bin 17, and the air intake valve is connected to a hose.

[0028] Although the present invention has been disclosed as above in terms of preferred embodiments, they are not intended to limit the present invention. Anyone skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection defined by the claims of this application.

Claims

1. A pole piece cooling device for lithium ion battery production, characterized in that: It includes a cooling roller and a heat exchange mechanism, wherein the cooling roller is inclined at a certain angle and is arranged on at least two groups of supporting drive components, each group of supporting drive components includes two supporting wheels symmetrically arranged at the bottom of the cooling roller, the supporting wheels are rotatably connected to the base, and the supporting wheels are connected to the driving mechanism; an outer sleeve is provided on the outside of the cooling roller, the bottom of the outer sleeve is fixedly connected to the support seat, two sealing seats are provided inside the outer sleeve, sealing rings are installed on the sealing seats, a sealing area is formed between the two sealing rings, an air inlet connected to the sealing area is provided on the top of the outer sleeve, the air inlet is connected to the air intake fan through a pipeline, the air intake fan is connected to the outlet of the heat exchanger through a pipeline, an inlet is provided on the heat exchanger, and an air outlet connected to the sealing area is provided at the bottom of the outer sleeve.

2. The electrode cooling device for lithium-ion battery production according to claim 1, characterized in that: The driving mechanism includes a motor and a gear transmission assembly.

3. A pole piece cooling device for lithium ion battery production according to claim 1 or 2, characterized in that: The cooling roller is connected to the outer sleeve via two bearings, and the two bearings are respectively arranged on the outer sides of the two sealing seats.

4. The pole piece cooling device for lithium ion battery production according to claim 3, characterized in that: A plurality of fins are arranged in the sealing area, and the fins are fixed on the side of the cooling roller.

5. The pole piece cooling device for lithium ion battery production according to claim 4, characterized in that: The pole piece cooling device also includes an air cooling mechanism, which includes an air cooling fan. The air cooling fan is opened at the higher end of the cooling roller. An air intake bin is provided on the back of the air cooling fan. The air intake bin is connected to the outlet of the heat exchanger through a hose. The side of the outer shell of the air cooling fan is hinged with an L-shaped connecting rod, and the connecting rod is fixedly connected to the side of the outer sleeve.

6. The pole piece cooling device for lithium ion battery production according to claim 5, characterized in that: The air intake bin is provided with an air intake valve, which is connected to a hose.

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