Webinar: Insulation materials for electric vehicles
This AMS webinar covers electrical insulation and flame retardancy requirements for batteries, motors and high-voltage systems in electric vehicles. The program is aimed at design engineers and quality engineers working on EV component projects.
Electrical systems in EVs are currently mostly 400 V and are gradually moving to 800 V. Higher voltage brings stricter requirements for insulation clearance, dielectric breakdown voltage and the surface tracking resistance of materials.
Webinar content
- Overview of insulation requirements in battery packs, motors and inverters.
- Common flame retardancy standards: UL94, thermal propagation in batteries.
- Material introduction: polyimide film, aramid paper, mica sheet, powder insulation coatings.
- Live Q&A with application engineers.
Quick comparison of insulation materials
| Material | Thermal class | Dielectric strength | Application |
|---|---|---|---|
| Polyimide film | Up to 240°C | About 200 kV/mm | Wire wrapping, busbar insulation |
| Aramid paper | Up to 220°C | 18–30 kV/mm | Stator slot insulation |
| Mica sheet | Above 500°C | 20 kV/mm | Fire barrier between battery modules |
| PET film | Up to 130°C | About 150 kV/mm | Cell wrapping, general insulation |
Who should attend
The webinar suits battery pack design engineers, motor engineers, quality engineers at automotive component factories and companies looking to enter the EV supply chain. Participants need no special preparation, only a stable internet connection.
Post-event materials
After the webinar, registrants will receive the presentation slides and a material comparison table, and can book a private consultation with an AMS engineer about their specific project. Samples are provided free of charge for suitable applications.
A notable part of the program is an analysis of common failure cases: insulation film punctured by the sharp edge of a busbar, flame-retardant material turning brittle after heat aging tests, and partial discharge in motor windings when switching to high-frequency inverters. For each case, AMS engineers suggest design adjustments or material changes, helping participants apply the lessons immediately to their ongoing projects. Questions that cannot be answered within the program time will be answered by email.
To register for the webinar or receive the recording, please contact AMS Vietnam.
