Insulating flame-retardant pressure-sensitive adhesive applied to power battery, adhesive tape and preparation method of insulating flame-retardant pressure-sensitive adhesive

Abstract

The invention relates to the technical field of special adhesive tapes for new energy batteries, in particular to an insulating flame-retardant pressure-sensitive adhesive applied to a power battery,an adhesive tape and a preparation method of the adhesive tape. The pressure-sensitive adhesive comprises the following components in parts by weight: 15-20 parts of 2-ethylhexyl acrylate, 10-15 partsof butyl acrylate, 7-10 parts of methyl acrylate, 5-7 parts of isobornyl acrylate, 5-7 parts of acrylic acid, 0.3-0.6 part of an initiator, 20-40 parts of ceramic powder, 0.3-0.6 part of aziridine and 40-71 parts of a solvent.Compared with an existing adhesive tape for a power battery, the pressure-sensitive adhesive tape has excellent insulation, flame retardancy and electrolyte resistance; andthe change of the bonding strength of the pressure-sensitive adhesive tape is extremely small in high-temperature and electrolyte environments, so that the safety requirement of the existing power battery can be well met.

Description

technical field [0001] The invention relates to the technical field of adhesive tapes for new energy batteries, in particular to an insulating and flame-retardant pressure-sensitive adhesive applied to power batteries, an adhesive tape and a preparation method thereof. Background technique [0002] As new energy vehicles gradually penetrate into people's social life, the increasingly prominent safety issues of new energy vehicles have attracted more and more attention. As the core component of electric vehicles, the safety of power batteries has a great impact on the safety performance of new energy vehicles. have a decisive influence. At present, among the safety accidents of new energy vehicles on the market, a large proportion is caused by the insulation and flame retardancy of power batteries. Therefore, the market puts forward higher requirements for the insulation and flame retardancy of power batteries. At present, power batteries usually need to use termination tap...

AI Technical Summary

Problems solved by technology

At present, power batteries usually need to use termination tape to wrap the battery. The termination tapes currently used in the market generally have poor flame retardancy, insufficient insulation performance, and a series of safety problems such as battery short circuit or even spontaneous combustion.