Battery pole piece coating method

A technology of battery pole piece and coating method, which can be applied to battery electrodes, electrode manufacturing, battery pack components, etc., and can solve problems such as reducing coating costs

Pending Publication Date: 2022-07-29
BATTERO TECH CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a battery pole piece coating method, which not only reduces the problem of poor insulation caused by missing coating or uneven coating during the coating process, but also reduces the coating cost

Method used

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  • Battery pole piece coating method
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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are a part of the present invention. examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Unless otherwise defined, technical or scientific terms used herein should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not excl...

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Abstract

The invention provides a battery pole piece coating method which comprises the following steps: carrying out die cutting treatment on a battery pole piece to form a plurality of conductive tabs on the battery pole piece; obtaining an image of the conductive tab so as to obtain the position of the conductive tab to be processed; rubberizing the conductive tab to be treated according to the position of the conductive tab so as to respectively form a first adhesive tape and a second adhesive tape on the conductive tab; and sequentially rolling the first adhesive tape and the second adhesive tape on the conductive tab until the first adhesive tape and the second adhesive tape are both attached to the conductive tab, thereby completing the adhesive pasting process. According to the invention, not only is the problem of poor insulation caused by missed coating or uneven coating in the coating process reduced, but also the coating cost is reduced, and the coating process is simplified.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a method for coating a battery pole piece. Background technique [0002] With the development of lithium-ion batteries, the manufacturing process has basically been finalized, which is roughly divided into electrode section, assembly section, test section, and module section. The electrode section refers to the production of the pole piece, which is very critical. The quality of the pole piece It directly affects the electrical performance and safety of the battery. The electrode segment is divided into many processes, such as powder, stirring, coating, rolling, slitting, die-cutting, etc., among which coating is a crucial process. A process of covering the current collector and drying the organic solvent in the slurry. The effect of coating has an important impact on battery capacity, internal resistance, cycle life and safety, ensuring that the pole pieces are evenl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/595H01M4/139H01M4/04
CPCH01M50/595H01M4/139H01M4/0435
Inventor 张卫龙李忠华李进华周中心樊文龙
Owner BATTERO TECH CORP LTD
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