Dust removal cover and dust removal device

A technology of a dust removal device and a dust removal hood, which is applied in cleaning methods and utensils, chemical instruments and methods, and cleaning methods using gas flow, etc., can solve problems such as battery short circuit, poor dust removal effect, etc.

Active Publication Date: 2020-10-16
XIAMEN HAICHEN NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, winding the pole piece is involved in the production of the battery cell, but it is easy to short-circuit the battery due to dust entering the inside of the battery cell, so it is necessary to control the dust so that it cannot enter the inside of the battery cell
At present, dust removal is generally carried out by setting a vacuum cleaner above the pole piece of the roller, but the dust removal effect is not good.

Method used

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  • Dust removal cover and dust removal device
  • Dust removal cover and dust removal device
  • Dust removal cover and dust removal device

Examples

Experimental program
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Effect test

Embodiment Construction

[0041] In the battery, the pole piece is mainly made of active materials and other components. During battery assembly, winding is usually required to form cells. In the actual production process, the pole piece is easy to carry dust and introduce it into the battery cell, resulting in a short circuit of the battery cell. Therefore, it is necessary to control the dust on the surface of the pole piece.

[0042] refer to figure 1 , generally, the dust removal method of the pole piece is: fix the positive electrode coil material 101a (or negative electrode coil material) on the unwinding shaft 100 and unwind it; at the same time, in the process of the coil material passing the roller 103, a vacuum cleaner 102 is arranged above the roller 103 , complete dust suction with negative pressure suction of dust 104 from the surface of positive electrode coil material 101a (wherein the suction direction A of dust is figure 1 shown).

[0043] The inventors have made efforts to improve ...

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PUM

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Abstract

The invention discloses a dust removal cover and a dust removal device, and belongs to the field of battery packaging. The dust removal cover comprises a cover body, and the cover body is provided with a cavity, an air inlet channel and an air outlet channel, and the air inlet channel and the air outlet channel are communicated with the cavity. The cover body is provided with a cavity having an opening defined by an inner surface. The air inlet channel penetrates through the outer surface and the inner surface of the cover body and forms an air inlet at the first position of the curved surfacepart; the air outlet channel penetrates through the outer surface and the inner surface of the cover body and forms an air outlet at a second position, different from the first position, of the curved surface portion. The dust removal cover can be used for efficiently removing dust on the surface of a pole piece in the roller passing process.

Description

technical field [0001] The present application relates to the field of battery packaging, in particular, to a dust removal cover and a dust removal device. Background technique [0002] The production process of lithium batteries mainly includes pole piece manufacturing, cell manufacturing, and liquid injection, pre-charging, formation, aging and other processes. In the process of each stage mentioned above, each step will have a great impact on the final performance of the battery. Among them, winding the pole piece is involved in making the battery cell, but it is easy to short-circuit the battery due to dust entering the inside of the battery cell, so it is necessary to control the dust so that it cannot enter the inside of the battery cell. At present, dust removal is generally carried out by setting a vacuum cleaner above the pole piece passing through the roller, but the dust removal effect is not good. Contents of the invention [0003] In order to improve or even...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B5/04B08B5/02
CPCB08B5/043B08B5/023Y02E60/10
Inventor 冯俊敏张万财吴婷婷
Owner XIAMEN HAICHEN NEW ENERGY TECH CO LTD
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