Novel carbon-coated aluminum foil blank-left coating device

Abstract

The invention discloses a novel carbon-coated aluminum foil blank-left coating device which comprises a coating slurry tank, a coating roll and adhesive tape. According to the novel carbon-coated aluminum foil blank-left coating device, a discharging port of the coating slurry tank faces the coating roll; along with the rotation of the coating roll, the coating roll is uniformly stained with slurry; when passing through the coating roll, a to-be-coated product, namely battery foil, can be coated; the adhesive tape of a certain width is arranged on the coating roll and capable of shielding thedischarging port of the coating slurry tank; when the coating roll rotates next to the coating slurry tank, no slurry flows out of the shielded discharging port and stains the coating roll; along withthe rotation of the coating roll, a slurry-free blank ring is left on the coating roll; and when the battery foil passes, a blank is naturally left on the battery foil. The novel carbon-coated aluminum foil blank-left coating device disclosed by the invention has the beneficial effects that the width of the adhesive tape can be adjusted according to the blank-left requirements of different battery models; both the simplicity and the practicability can be achieved; furthermore, the trouble about the repeated replacement of coating rolls in the prior art can be avoided; and the working efficiency can be greatly improved.

Description

technical field [0001] The invention relates to the field of new energy power batteries, in particular to a novel carbon-coated aluminum foil blank coating device used for the carbon coating layer of the battery. Background technique [0002] In the production process of the pole piece of lithium-ion battery, it is essential to leave blank by carbon coating of aluminum foil. The existing blanking method in the industry is to realize coating blanking through laser engraving rollers according to different specifications, but the disadvantage is that special rollers are required for different specifications of different customers, and the cost investment is relatively large. , the production cycle is longer. Moreover, when blank coating is performed on battery foils with different blanks, the coating roller needs to be replaced, and the disassembly and installation of the coating roller is time-consuming and laborious. In addition, in the prior art, the coating machine cannot...

AI Technical Summary

Problems solved by technology

The existing blanking method in the industry is to realize coating blanking through laser engraving rollers according to different specifications, but the disadvantage is that special rollers are required for different specifications of different customers, and the cost investment is relatively large. , longer production cycle

In addition, when blanking the battery foil with different blanking, it is necessary to replace the coating roller, and the removal and installation of the coating roller is time-consuming and laborious

In addition, in the prior art, the coating machine cannot be flexibly adjusted during coating, which makes it difficult to grasp the coating accuracy

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