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Device for preventing upwarping of lithium battery coating pole piece

A lithium battery and pole piece technology, which is applied in the field of devices for preventing pole piece upturning, can solve problems such as edge upturning, floating roller cracks, broken belts, etc., so as to achieve the effects of preventing upturning, reducing failure rate and improving pole piece quality.

Inactive Publication Date: 2013-09-11
高平唐一新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art, to provide a device for preventing the pole piece from being upturned for lithium battery coating, and to solve the problem of the traditional lithium battery pole piece coating device. There will be cracks or even broken belts when the floating roller is installed

Method used

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  • Device for preventing upwarping of lithium battery coating pole piece

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Embodiment Construction

[0011] Such as figure 1 As shown, a device for preventing the upturning of the lithium battery coated pole piece includes: the oven outlet 5 of the coating machine, and the floating roller 4 arranged in front of the oven outlet 5, and the oven outlet 5 of the coating machine is located at the pole piece 6 Above, on the two coater side walls 2, a roller 1 that is in contact with the pole piece 6 is installed.

[0012] The two side walls 2 of the coating machine are provided with through holes 3, and the small shafts at both ends of the passing roller 1 are in clearance fit with the through holes 3, and the passing roller 1 and the pole pieces in the conveying process 6 contacts, the passing roller 1 keeps rotating, which can realize the re-flattening of the curled pole piece 6, and when passing through the floating roller 4, the pole piece 6 will not be broken or torn due to internal stress, which will cause broken belts.

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Abstract

The invention relates to a device for preventing the upwarping of a lithium battery coating pole piece, and relates to a lithium battery pole piece, which solves the technical problems of the traditional lithium battery pole piece coating device that the edge is upwarped in the coating process of a single surface. The device comprises a coater drying oven outlet and a floating roll which is arranged in front of the drying oven outlet, wherein a passing roll which is contacted with the pole piece is installed on the side walls of two coaters in the coater drying oven outlet and above the pole piece. The side walls of the two coaters are respectively provided with a through hole, a small shaft on each of the two ends of the passing roll is in clearance fit with the through hole, and the passing roll is contacted with the pole piece to rotate in the transmission process. The device is used for a lithium battery pole piece coating process and has the advantages that the structure is simple, the upwarping of the coating pole piece can be effectively prevented, and the production efficiency and the quality of the pole piece can be improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a device for preventing pole pieces from upturning when coating lithium battery pole pieces. Background technique [0002] Lithium-ion battery (referred to as lithium battery) pole piece coating process is to apply the active material to the foil and then dry it. There are oil-based and water-based coating processes. The water-based process is energy-saving and environmentally friendly. However, in the process of single-sided coating, since there is no dressing on the edge of the coating, the surface tension of the active material fluid and the edge of the foil absorb more heat, resulting in easy upturned. With the traditional lithium battery pole piece coating device, when the upturned pole piece passes the first floating roller at the oven mouth, the edge wrinkles of the pole piece will increase, resulting in small cracks and powder falling, which is easy to Broken belt. W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/139
CPCY02E60/10
Inventor 赵章宏靳明邢建堂
Owner 高平唐一新能源科技有限公司
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