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A battery pole piece coating device

A coating device and battery pole piece technology, applied in battery electrodes, electrode manufacturing, circuits, etc., can solve the problems of short cycle life, inconsistent pole piece thickness, affecting battery quality, etc., to prevent position shift and prevent thickness inconsistency. Effect

Active Publication Date: 2020-10-16
DONG GUAN LONGTTECH COMPANY LTD
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Problems solved by technology

The quality of the pole piece after coating determines the performance of the battery, such as high self-discharge, short cycle life and other quality problems
However, during the pole piece coating process, after the slurry is coated on the pole piece, it enters the oven of the coating machine for drying through the external guide roller, and the pole piece has a long distance to contact with the outside air before entering the oven. In this way, there will be Moisture, dust and sundries in the air in the workshop environment adhere to the surface of the undried pole piece, so that the thickness of the pole piece is inconsistent, thus affecting the quality of the battery

Method used

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  • A battery pole piece coating device

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[0015] In order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific implementations described in this specification are only for explaining the present invention, not for limiting the present invention.

[0016] see figure 1 , the present invention provides a battery pole piece coating device 100 , including a coating machine 10 , an unwinding roller 20 , a pair of thickness detection devices 30 and a monitoring module 40 .

[0017] The coating machine 10 includes a protective cover 11, a pair of first rollers 12 accommodated in the protective cover 11 at intervals, a limit roller 13 accommodated in the protective cover 11, and a roller column 13 installed in the protective cover. The second roller 14 at one end of 11, the coating machine head 15 t...

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Abstract

The invention relates to a battery pole piece coating apparatus. The battery pole piece coating apparatus comprises a coating machine, an unreeling roller, a pair of thickness detection apparatuses, and a monitor module. The coating machine comprises a protective cover, a pair of first rollers which are accommodated in the protective cover at intervals, a spacing roller accommodated in the protective cover, a second roller arranged at one end of the protective cover, a coating machine head arranged at the protective cover, equipped with one end of the second roller and realizing interval arrangement with the second roller, and a baking box connected with the other end of the protective cover; the unreeling roller is arranged at one end of the protective cover at a side installed with the coating machine head, and realizes interval arrangement with the second roller and the coating machine head; the pair of thickness detection apparatuses are accommodated in the protective cover at intervals, and are electrically connected with the monitor module, and the monitor module is arranged on the protective cover.

Description

【Technical field】 [0001] The invention relates to the field of battery production equipment, in particular to a battery pole piece coating device. 【Background technique】 [0002] The electrode coating process for batteries is to apply the active material to the foil and then dry it. The quality of the pole piece after coating determines the performance of the battery, such as high self-discharge, short cycle life and other quality issues. However, during the pole piece coating process, after the slurry is coated on the pole piece, it enters the oven of the coating machine for drying through the external guide roller, and the pole piece has a long distance to contact with the outside air before entering the oven. In this way, there will be Moisture, dust and sundries in the air in the workshop environment adhere to the surface of the undried pole piece, which makes the thickness of the pole piece inconsistent, thus affecting the quality of the battery. In addition, the oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/04
CPCH01M4/0409Y02E60/10
Inventor 吴传官刘榕明谭腾飞
Owner DONG GUAN LONGTTECH COMPANY LTD
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