Supercapacitor is also a promising field in energy storage system, its energy storage principle is physical reaction, similar to the use of aluminum batteries, new energy vehicles, new energy buses, etc. Insulation materials are mostly used in the installation and fixing of supercapacitor, according to the application of the working conditions require fireproof report, flame retardant grade V0, temperature resistance at least F level, firm installation and basic electrical performance; the commonly used material is FR4!