With the rapid development of the new energy vehicle industry today，the selection of cable materials has become one of the key factors in improving the performance of the whole vehicle. Irradiation cross-linked materials, with their excellent heat resistance and mechanical strength, have always been the mainstream choice for automotive high-voltage cables.
However, in the face of the special needs caused by the accelerated iteration speed of new energy vehicles, irradiation cross-linked materials have gradually exposed some shortcomings. In this context, Angreen New Materials has introduced silicone rubber material products while retaining and continuously developing and innovating irradiation cross-linked materials to provide better solutions for new energy vehicle cables.
At present, new energy vehicle companies led by Tesla and BYD are rapidly updating and iterating hybrid vehicles and pure electric vehicles, which has rapidly increased the requirements for raw materials such as high-voltage wires, battery wrapping, shock absorption, heat insulation and interior decoration in the car, especially BYD's hybrid technology has sharply increased the requirements for various automotive cables.
At present, automotive power cable materials are mainly cross-linked polyolefins. This type of cross-linked material can withstand a heat temperature of up to 150°C, but at the same time, it will make the material cable hard, which makes it inconvenient to install in a small car body space, and requires irradiation cross-linking, which is a complex process and is not suitable for cables with large cross-sections. Traditional elastomer materials have insufficient flame retardancy.
Silicone rubber materials can make up for these shortcomings. It not only has excellent electrical insulation, thermal stability and weather resistance, but also has corrosion resistance, oil resistance and hydrophobicity, as well as flame retardancy. At the same time, the high softness and high tear resistance of silicone rubber materials make it easier to install in a small car body space, and can meet the stringent requirements of new energy vehicles for cables.
1. New challenges for new energy vehicle cables
New energy vehicle cables face more stringent application conditions than traditional vehicle cables:
Higher temperature resistance requirements: The batteries and motors of electric vehicles generate a lot of heat during operation, and the cable materials need to maintain performance in high temperature environments.
Stronger electrical insulation performance: High voltage systems require cables to have higher electrical insulation safety.
Excellent mechanical properties: including wear resistance, compression resistance and vibration resistance, to adapt to the harsh environment of vehicle moving parts.
Good chemical stability: resists corrosion by oil, coolant and other chemicals.
Environmental protection and recyclability: in line with the automotive industry's pursuit of environmentally friendly materials.
2. Performance advantages of silicone rubber materials
Angreen's silicone rubber materials have shown significant performance advantages in the following aspects:
Extremely wide temperature range: Silicone rubber materials can remain stable in the temperature range of -60°C to 200°C, far exceeding the temperature resistance of radiation cross-linked materials.
Excellent electrical insulation performance: Silicone rubber has high dielectric strength and can maintain excellent electrical insulation performance even in humid environments.
Excellent mechanical properties: Silicone rubber materials have high elasticity and excellent tear resistance, and can withstand mechanical stress during vehicle operation.
Good chemical stability: Silicone rubber has good resistance to chemicals, which extends the service life of the cable.
Environmental characteristics: Silicone rubber materials are easy to recycle and meet environmental protection requirements.
Of course, Angreen's silicone rubber materials are not only suitable for new energy vehicle cables, but can also be widely used in:
1. Production of high-voltage and low-voltage cables for automobiles and ships
2. Double-two-four and platinum extrusion of ordinary wires, cables, hoses, rubber strips and other conventional products
3. Silicone gaskets, sealing rings, sealing pads, etc.
4. Silicone toys, accessories, mobile phone cases, sheaths, straps and other soft rubber parts
5. Extrusion of wire electrical insulation layer, sheath layer, etc.
6. Seals, industrial miscellaneous parts, etc.
7. Extrusion of hoses, drinking water pipes, pressure pipes, solid rubber strips, special-section sealing strips, plates, calendered sheets, etc.
Application cases of silicone rubber materials
Silicone rubber materials have been used in many new energy vehicle projects:
Battery Management System (BMS) Cable: The temperature resistance and electrical insulation properties of silicone rubber materials make it an ideal choice for BMS cables.
Motor drive system cables: In high-power density motor drive systems, silicone rubber materials ensure the reliability and safety of cables.
Charging system cables: The chemical corrosion resistance of silicone rubber materials makes it suitable for cables in fast charging systems.
Silicone rubber materials, with their excellent performance and innovative technology, have brought new solutions to the field of new energy vehicle cables. Faced with the rapid development of the industry and the ever-changing market demands, Angoray is actively expanding the application of its radiation cross-linked materials and silicone rubber materials in the field of new energy vehicle cables through technological innovation and market strategies, demonstrating strong market competitiveness and development potential, and making positive contributions to the development of the global new energy vehicle industry.
