At present, automotive power cable insulation materials include cross-linked polyolefins and thermoplastic elastomers. Among them, the cross-linked polyolefin material has a heat resistance of 150 ° C, but the cable of this material is relatively hard, it is inconvenient to install in a small car body space, and requires irradiation and cross-linking. The process is complicated, and it is not suitable for large-section cables. The thermoplastic elastomer material has a heat resistance of less than 125 ° C, which is used for power cables with a low temperature grade, and the cables of thermoplastic elastomer materials may risk cracking after long-term use.

The high-temperature resistant silicone rubber has high and low temperature resistance, ozone resistance, weather resistance, and excellent electrical insulation; the silicone rubber wire has a large current carrying capacity, saves the conductor cross-section, and can meet the requirements of long-term full-load operation; the flame resistance can be achieved by adding flame retardant ; Has high flexibility, easy to install in a limited space; high tear silicone rubber, pants tear up to 25N / mm. Therefore, silicone rubber materials can make up for their shortcomings while combining the advantages of cross-linked polyolefin and thermoplastic elastomer materials, and silicone rubber can reduce the weight and carbon dioxide emissions of automobiles and is a good choice for automotive power cables.