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We supply insulation materials for new energy vehicles (NEVs), including:Battery system insulation materials:FR4 / G10 / G11 epoxy laminates, polyimide (PI) materials, and SMC insulation boards. Motor system insulation materials:DMD, NMN, Nomex, and other composite insulating materials.
Epoxy sheet(fiberglass reinforced epoxy sheets) are manufactured by laminating epoxy resin with fiberglass fabric under heat and pressure. They offer excellent mechanical strength and high dielectric performance.
| Material Grade | Key Characteristics | Typical Applications in New Energy Vehicles (NEVs) |
| FR-4 | High flame-retardant rating (UL94 V-0), excellent electrical insulation performance | Battery module partitions, BMS printed circuit boards, high-voltage connector insulation sheets |
| 3240 | High mechanical strength, moderate cost | Insulation liners and structural support components in non-critical areas |
| G11 | Excellent high-temperature mechanical strength (Class F / Class H thermal resistance) | Internal insulation of drive motors, high-performance battery pack end plates |
| Anti-static epoxy sheet | Stable surface resistance to prevent static charge accumulation | Internal components of BMS control boxes, precision electronic component supports |
| Insulation Position | Core Material Name | Common Material Specifications | Key Function |
| Slot Insulation (Slot Liner) | Composite insulation paper | NHN (Nomex + PI film), NMN, aramid paper | Insulates the stator core from the windings, prevents electrical breakdown, and withstands high temperatures |
| Phase Insulation | Insulation sheets / flexible composite materials | Aramid fiber, polyester film (PET) | Insulates windings of different phases to prevent phase-to-phase short circuits |
| Slot Wedge | Rigid laminated board | G11 epoxy laminate, Pultrusion rod | Mechanically secures the windings and prevents coils from being thrown out of the slot during high-speed operation |
