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Lithium battery diaphragm heat treatment device capable of monitoring filter screen and filter screen monitoring method

A lithium battery diaphragm and heat treatment device technology, which is applied in the direction of separation methods, battery pack parts, chemical instruments and methods, etc., can solve the problem of poor heat treatment effect of lithium battery diaphragm, inconvenient removal and installation of filter screen, and quality of lithium battery diaphragm. Impact and other issues, to prevent dust from entering the working area of ​​the lithium battery diaphragm, convenient and quick replacement and cleaning, and good sealing

Pending Publication Date: 2019-05-24
威海星宜新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the production process of lithium battery diaphragm, when heat treating the lithium battery diaphragm, it is usually heated and cured in a hot air oven, and because there is a lot of dust in the hot air, the hot air containing dust will affect the quality of the lithium battery diaphragm, so , Generally, a filter is added in the oven to filter the hot air to ensure the production quality of the lithium battery separator. After a period of work, the filter will often be blocked, and the heat treatment effect of the lithium battery separator will become worse.
The staff need to observe and detect the surface quality of the lithium battery separator in real time. When the surface quality of the lithium battery separator is found to be deviated, it is likely that the filter in the hot air oven is clogged, resulting in poor heat treatment effect, and because the entire production line has Multiple hot air ovens, at this time, the staff need to stop all the machines, check one by one, and determine the specific location of the clogged filter screen, which leads to a long time of parking, affecting production efficiency, and, in the prior art, the filter screen It needs to be taken out manually by the staff, and the temperature in the oven is generally maintained at about 200°C. It takes a lot of time to cool down the production line when taking out the filter, which seriously affects the production efficiency, and it is not convenient to take out and install the filter.

Method used

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  • Lithium battery diaphragm heat treatment device capable of monitoring filter screen and filter screen monitoring method
  • Lithium battery diaphragm heat treatment device capable of monitoring filter screen and filter screen monitoring method
  • Lithium battery diaphragm heat treatment device capable of monitoring filter screen and filter screen monitoring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as Figure 1-Figure 12 As shown, a lithium battery diaphragm heat treatment device capable of monitoring the filter screen includes a box body 1, the left side of the box body 1 is provided with an air inlet, and the bottom of the box body 1 is provided with an air outlet corresponding to the lithium battery diaphragm working area 11 Two U-shaped guide rails 2 are fixed vertically on the front and rear inner walls of the box body 1, and a U-shaped filter screen support 3 is slidably connected between the two U-shaped guide rails 2. The left and right sides of the U-shaped guide rail 2 A sealing strip 4 is provided between the inner side wall and the filter screen support 3, which can improve the sealing performance between the filter screen support 3 and the U-shaped guide rail 2, and ensure that hot air with dust will not flow from the filter screen support 3 and the U-shaped guide rail 2 during the working state. Pass through the gap between U-shaped guide rails ...

Embodiment 2

[0052] Such as Figure 7-Figure 10 and Figure 14 Shown, present embodiment is on the basis of embodiment 1, and filter screen clamping plate 6 comprises front filter screen clamping plate 25 and rear filter screen clamping plate 26, and rear filter screen clamping plate 26 is fixedly connected with filter screen support 3, and front filter screen clamping plate 25 The bottom end is hinged with the bottom end of the rear filter screen splint 26, the tops of the front filter screen splint 25 and the rear filter screen splint 26 are locked by bolts, and the filter cotton is clamped between the front filter screen splint 25 and the rear filter screen splint 26, The front filter screen clamping plate 25 and the rear filter screen clamping plate 26 are metal grid-like structures, and the outer edge of the metal grid-like structure is surrounded by a rectangular frame adapted to the inner side of the filter screen support 3, and the front filter screen clamping plate 25 It is hinge...

Embodiment 3

[0055] Such as Figure 11-Figure 13 As shown, in this embodiment, on the basis of Embodiment 1, a seal groove 28 is formed on the outer top of the box body 1 and surrounds the opening 17, and a seal ring 29 that cooperates with the seal groove 28 is provided on the cover plate 18 to work normally. , the cover plate 18 is locked on the box body 1 through the locking bolt 30. When the filter cotton needs to be taken out, the locking bolt 30 is loosened and removed. When working, the cover plate 18 is fixed on the box body through the locking bolt 30. , can improve the sealing performance of the cover plate 18 closing the opening 17, and reduce heat loss.

[0056] The arrangement of the sealing groove 28 and the sealing ring 29 can improve the sealing performance of the box body 1 and reduce heat loss in the box body 1 .

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PUM

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Abstract

The invention discloses a lithium battery diaphragm heat treatment device capable of monitoring a filter screen. The lithium battery diaphragm heat treatment device comprises a box body, two U-shapedguiding rails are fixed to the two opposite inner side walls of the box body, a U-shaped filter screen bracket is slidably connected between the two U-shaped guiding rails, filter screen clamping plates are mounted on the filter screen bracket, filter cotton is arranged between the filter screen clamping plates, a rack is fixed to one side of the filter screen bracket in the vertical direction, adriving motor is fixedly mounted on the outer side wall of the box body, the driving motor is in transmission connection with the rack through a gear, a protruding block is mounted on the other side of the filter screen bracket, two limiting switches are mounted on the U-shaped guiding rails, and two temperature sensors are mounted on the two sides of the filter screen clamping plates; and the topof the box body is open, and a cover plate is hinged to the external top of the box body. According to the lithium battery diaphragm heat treatment device, based on the change of the temperature in front of and behind the filter cotton, the blocked filter cotton can be accurately determined, the filter cotton is conveniently taken out and mounted, the stopping time is greatly decreased, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of lithium battery diaphragm production, in particular to a lithium battery diaphragm heat treatment device capable of monitoring a filter screen and a filter screen monitoring method. Background technique [0002] In the production process of lithium battery diaphragm, when heat treating the lithium battery diaphragm, it is usually heated and cured in a hot air oven, and because there is a lot of dust in the hot air, the hot air containing dust will affect the quality of the lithium battery diaphragm, so , Generally, a filter is added in the oven to filter the hot air to ensure the production quality of the lithium battery separator. After a period of work, the filter often becomes clogged, and the heat treatment effect of the lithium battery separator will deteriorate. The staff need to observe and detect the surface quality of the lithium battery separator in real time. When the surface quality of the lit...

Claims

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Application Information

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IPC IPC(8): F26B21/00F26B25/00H01M2/14B01D46/00B01D46/30B01D46/44H01M50/403
CPCY02E60/10
Inventor 赵春光
Owner 威海星宜新材料科技有限公司