With the rapid development of new energy vehicle technology, the 800V drive system has attracted more attention from manufacturers due to its high efficiency and fast charging capabilities. In this context, the high voltage stability of motor winding flat wires has become an urgent technical issue. PEEK (Polyether Ether Ketone) flat wire, due to its excellent performance, has become a popular alternative to traditional enameled wire.
Compared to traditional thick varnish enameled insulated wire, PEEK flat wires have the advantages of simple production processes, high product stability, and excellent voltage resistance. It does not require repetitive coating and baking processes to demonstrate very high voltage resistance. During processing, PEEK flat wires are not easily damaged even after repeated bending, making them significantly advantageous in the manufacture of electric motors for new energy vehicles.
The application of PEEK material cables in new energy vehicles is not limited to motor windings but also includes applications as ultra-high temperature wires in the aviation industry, and their wide use in the petroleum industry, nuclear power plants, ships, and high-speed traction locomotives. The halogen-free property, high volume resistivity, excellent surface resistance, low dielectric constant and dielectric loss factor, heat resistance, flame retardancy, chemical resistance, and radiation resistance of PEEK cables make them ideal insulating materials in these fields.
Features of PEEK wires: | |
Halogen-free property | The material does not contain halogen atoms, and it does not produce acidic or toxic gases upon combustion, fully complying with EU RoHS environmental requirements, making it an environmentally friendly material. |
Volume resistance | Within a wide temperature range, ordinary PEEK polymers can still maintain very high volume resistivity values. At 23°C, PEEK's volume resistivity is above 6 × 1013 Ωm. At 140°C, its volume resistivity is above 8 × 1012 Ωm, and even at 200°C, its volume resistivity is above 6 × 109 Ωm, still possessing excellent insulating properties. |
Surface resistance | PEEK performs better than fluoroplastics, polyamide, and polyimide plastics under humidity conditions. At 25°C and 50% humidity, the surface resistivity reaches 2.0 × 1016 Ω. |
Heat resistance | PEEK polymers have a glass transition temperature of 143°C. As a semi-crystalline thermoplastic material, it can maintain excellent mechanical properties near its melting point temperature of 343°C. Its fatigue and creep resistance are among the highest in thermoplastics. |
Flame retardancy | PEEK is self-extinguishing and, without adding flame retardants, meets UL standards with 94V-1 (thickness of 0.3 mm), 94V-0 (thickness of 1.5 mm), and 94V-5 (thickness of 3.2 mm). Furthermore, it produces very low smoke when burned. |
Chemical resistance | PEEK polymers have a glass transition temperature of 143°C. As a semi-crystalline thermoplastic material, it can maintain excellent mechanical properties near its melting point temperature of 343°C. Its fatigue and creep resistance are among the highest in thermoplastics. |
Radiation resistance | It has very strong γ-radiation resistance, exceeding that of polystyrene, which is known for its good radiation resistance among general resins. It can be used to make wires that retain good insulating properties even at a γ radiation dose of 1100Mrad. |
Jintian Copper's PEEK flat wires, with their excellent high-temperature resistance, flame retardancy, radiation resistance, and good mechanical properties, provide a reliable insulation solution for new energy vehicles. For inquiries, please call: 0574-83005999. With continuous technological advancements and market expansion, the demand for PEEK cables in new energy vehicles and other high-end application fields is expected to grow steadily.
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