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Coating method

A coating method and coating technology, applied in the coating field, can solve the problems of poor welding, laser damage to the surface of foil, foil catalysis, waste products, etc., and achieve the effect of improving quality

Active Publication Date: 2018-12-18
SHENZHEN SHINING AUTOMATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process has the following disadvantages: in the process of foaming and thickening the foaming loss-adhesive tape, the fluid slurry will flow around, and it is easy to make the slurry flow to a thicker side, which will produce Drum edge, which is easy to break the foil in the subsequent rolling process, resulting in waste products
[0005] The second method is to use laser to directly pattern the surface of the coated foil to remove active substances and form special-shaped patterns. This process has the following disadvantages. The laser will damage the surface of the foil and cause the foil to catalyze. In the subsequent welding electrode There will be poor welding when the ear is connected

Method used

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  • Coating method

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Embodiment Construction

[0022] The present application will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

[0023] see figure 1 As shown, the coating method provided in this embodiment is specifically applied to the coating method of lithium-ion batteries in the production of pole pieces. The coating method includes the following steps:

[0024] Step 100, pasting a UV adhesive tape or coating a UV adhesive adhesive on the surface of the base material. Specifically, a UV debonding tape or a UV debonding glue can be pasted on one surface of the substrate, or a UV debonding tape or UV debonding glue can be respectively pasted on two surfaces of the substrate. After the final coating is completed, in order to form a special-shaped pattern on the surface of the substrate, when pasting UV adhesive tape or coating UV adhesive glue, it can be pasted on the surface of the substrate to make the pasted UV adhesive adhesive The adhesive tape or...

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Abstract

The invention discloses a coating method. The coating method comprises the following steps that UV tack-free adhesive tape is pasted on the surface of a base material or the surface of the base material is coated with UV tack-free glue; the surface of the base material pasted with the UV tack-free adhesive tape or coated with the UV tack-free glue is coated with slurry; the slurry covering the UVtack-free adhesive tape or the UV tack-free glue is removed, and the UV tack-free adhesive tape or the UV tack-free glue is exposed; the exposed UV tack-free adhesive tape or the UV tack-free glue istreated, and falls off from the surface of the base material. In the coating method, the pasted UV tack-free adhesive tape or coated UV tack-free glue can form a protection layer on the surface of thebase material, and therefore when slurry on the surface of the UV tack-free adhesive tape or UV tack-free glue is removed, the base material cannot be damaged, and therefore the finished product quality is improved.

Description

technical field [0001] The present application relates to the technical field of coating, in particular to a coating method. Background technique [0002] In the manufacturing process of lithium-ion batteries, coating slurry on the foil is a very crucial link. The quality of coating directly affects the performance and safety of lithium-ion batteries. [0003] The existing coating process is mainly divided into the following two types: [0004] The first one is to use temperature-sensitive foaming and thickening non-adhesive tape on the surface of the foil first, and then apply the slurry on the surface of the foil after pasting the non-adhesive tape, and then at a certain temperature Under-baking makes the non-adhesive tape loose and fall off; in this process, the non-adhesive tape is the part that adheres to the surface of the foil, thus forming a special-shaped pattern on the surface of the foil. This process has the following disadvantages: in the process of foaming an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/32
CPCB05D1/32
Inventor 宁鹏
Owner SHENZHEN SHINING AUTOMATION CO LTD