A kind of high temperature resistant adhesive tape to prevent roller pressure from overflowing

Abstract

The invention provides a high-temperature-resistant adhesive tape for preventing roller pressure from overflowing. The adhesive tape includes a glass fiber layer, an upper and lower Teflon layer and a lower middle silicon adhesive layer. The glass fiber layer fixes the Teflon layer up and down, and there are notches with a certain distance in the middle of the lower Teflon layer, and the inside of the notch is coated with a silicon adhesive layer; the edge of the upper Teflon layer is thinned to a certain extent, and the lower Teflon layer is The thickness of the layer decreases from the middle to the sides. The present invention is characterized in that the silicone adhesive layer is in the middle of the adhesive tape to prevent the glue from overflowing during rolling; the upper layer of Teflon layer is thinned to prevent scratching the contacted battery pole pieces; the thickness of the lower layer of Teflon layer is reduced from the middle to both sides. Small, so that the lower layer of the tape is firmly adsorbed on the surface of the object, preventing the edge of the tape from turning over.

Description

technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to a high-temperature-resistant adhesive tape for preventing glue overflow during rolling, and in particular to the rolling process for battery pole pieces. Background technique [0002] Adhesive tape has advantages such as cheap price, easy to carry and wide range of use, but general adhesive tape can only be used for general purposes. For example, the mechanical strength of most tapes is not enough to be rolled or squeezed and deformed; some tapes have insufficient high temperature resistance and curl at high temperatures; this indicates that special-purpose tapes need further research and development. [0003] During the preparation process of the battery pole piece, it needs to go through the rolling process, but the coating area of ​​the pole piece is stretched during the rolling process, and the edge tabs are not stretched without pressure. Therefore, many rolling proc...

AI Technical Summary

Problems solved by technology

[0002] Adhesive tape has the advantages of cheap price, convenient carrying and wide range of use, but general adhesive tape can only be used for general purposes

For example, the mechanical strength of most tapes is not enough to be rolled or squeezed and deformed; some tapes have insufficient high temperature resistance and curl at high temperatures; indicating that special-purpose tapes need further research and development

[0003] During the preparation process of the battery pole piece, it needs to go through the rolling process, but the coating area of ​​the pole piece is stretched during the rolling process, and the edge tabs are not stretched without pressure

Therefore, many rolling processes have been improved in response to this problem, including adding wrinkle removal devices, edge heating, etc., resulting in increased equipment costs and no good results; or sticking Teflon tape extension poles in the rollers However, the effect is not very good; sticking high temperature resistant adhesive tape in the main roller has a good extension effect, but the overflow of the adhesive tape damages the surface quality of the pole piece; adhesive tape

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