High-temperature resistant adhesive tape for preventing adhesive overflow during rolling

Abstract

The present invention provides a high-temperature resistant adhesive tape for preventing adhesive overflow during rolling. The adhesive tape includes a glass fiber layer, upper and lower Teflon layersand a lower middle silicone adhesive layer. The Teflon layers are fixed to upper and lower parts of the glass fiber layer, the middle of the lower Teflon layer is provided with a groove having a certain gap, and the inside of the groove is coated with the silicone adhesive layer. The edge of the upper Teflon layer is thinned to a certain degree, and the lower Teflon layer has thickness decreasingfrom the middle to two sides. The adhesive tape is characterized in that the silicone adhesive layer is in the middle of the adhesive tape to prevent adhesive overflow during rolling; the edge of theupper Teflon layer is thinned to protect a battery pole piece in contact from being scratched; and the lower Teflon layer has thickness decreasing from the middle to two sides so that the lower layerof the adhesive tape is firmly adsorbed on the surface of an object to prevent edges of the adhesive tape from being turned 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 purpose. 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 proce...

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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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