Anti-wrinkling device and method for pasting anti-wrinkling patches

Abstract

The invention relates to the technical field of battery manufacturing, and discloses an anti-wrinkling device and a method for pasting anti-wrinkling patches. The anti-wrinkling device comprises: a rotating roller, which is rotatably connected to a rack, and abuts against a coating area of a pole piece belt in a rolling manner; an anti-wrinkling structure, which comprises a first anti-wrinkling structure and a second anti-wrinkling structure that are arranged at two ends of the rotating roller in a surrounding mode in the circumferential direction of the rotating roller respectively, wherein the first anti-wrinkling structure and the second anti-wrinkling structure can increase the diameter of the rotating roller, and the first anti-wrinkling structure and the second anti-wrinkling structure abut against foil remaining areas at the two ends of the pole piece belt in a rolling mode respectively. By means of the structure, the anti-wrinkling device can prevent the foil remaining areas ofthe pole piece from being wrinkled and damaged, and the quality of the produced pole piece can be improved.

Description

technical field [0001] The invention relates to the technical field of battery manufacturing, in particular to an anti-wrinkle device and a method for applying an anti-wrinkle patch. Background technique [0002] With the country's strong support for the new energy industry, new energy vehicles have become the main trend of future development. This not only increases the market demand for power batteries, but also makes people pay more and more attention to the quality of power batteries. As the core component of the battery, the quality of the pole piece is directly related to the performance of the battery. [0003] In the process of making the pole piece, due to the inconsistency in the thickness of the film coating area and the foil area of ​​the pole piece belt, the foil area will be broken due to the inconsistent extension of the film coating area and the foil area during the roll process of the pole piece belt. Wrinkling (that is, wrinkling of the pole piece), the wr...

AI Technical Summary

Problems solved by technology

[0003] In the process of making the pole piece, due to the inconsistency in the thickness of the film coating area and the foil area of ​​the pole piece belt, the foil area will be broken due to the inconsistent extension of the film coating area and the foil area during the roll process of the pole piece belt. Wrinkling (that is, wrinkling of the pole piece), the wrinkling of the foil area will not only affect the equipment running and thus affect the deviation correction accuracy, but also cause the edge of the pole piece belt to drop powder, damage the pole piece belt, and lead to bad batches of produced pole pieces

[0004] The current treatment method for the wrinkling of the above-mentioned foil area is usually to set a smoothing plate for smoothing, and smooth the wrinkled part. Although this method can reduce the wrinkling of the pole piece, it still cannot prevent the edge of the pole piece from falling. powder, it will still damage the pole piece belt, reduce the quality of the pole piece belt, and lead to poor production of the pole piece

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