A lithium battery pole piece suspension wrinkle removal device

Abstract

The invention relates to a lithium battery pole piece suspension wrinkle removal device which comprises a first air blowing device and a second air blowing device. The first air blowing device comprises a first high pressure speed regulating fan and a first air blowing body which are connected through a first pipeline. A first air outlet formed in the first air blowing body is pointed to the uppersurface of a pole piece, and air is exhausted from the left and right sides of the first air outlet, the second air blowing device comprises a second high pressure speed regulating fan and a second air blowing body which are connected through a second pipeline, the second air blowing body comprises an air blowing inner cavity and an air blowing outer cavity, a second air outlet formed in the airblowing inner cavity is pointed to the lower surface of the pole piece so that the pole piece is kept in the suspension state, a third air outlet formed in the air blowing outer cavity is pointed to the lower surface of the pole piece, and air is exhausted from the front and back sides of the third air outlet. According to the technical scheme, the device is used for removing wrinkles in the length direction and the width direction of the pole piece; no physical contact is caused between pole pieces, and therefore the probability that pole pieces are abraded and secondary wrinkles are generated is eradicated.

Description

technical field [0001] The invention relates to a lithium battery pole piece suspension wrinkle removal device. Background technique [0002] In recent years, lithium-ion power batteries have been valued by more and more countries and institutions worldwide due to their high energy density, high average voltage, high output power, and long service life. They are widely used in electric vehicles, energy storage Various occasions such as power stations and electric tools. In the manufacturing process of lithium-ion batteries, it is necessary to evenly spread the positive and negative electrode slurry on the current collector, and roll it into shape after drying. In the process of coating and rolling, the pole piece has been dried, various conveying rollers, correction rollers, tension swing rollers, and the thickness of the current collector is only about 10 microns, which is often easy to wrinkle. On the one hand, it increases scrapping, on the other hand The consistency of...

AI Technical Summary

Problems solved by technology

In the process of coating and rolling, the pole piece has been dried, various conveying rollers, correction rollers, tension swing rollers, and the thickness of the current collector is only about 10 microns, which is often easy to wrinkle. On the one hand, it increases scrapping, on the other hand The consistency of the battery is not guaranteed, and even increases the possibility of serious failures such as battery short circuit

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