DuPont Innovations in New Charged Car

DuPont News, May 15, 2012
The SIM-WIL car that recently was unveiled in Tokyo.
The SIM-WIL car that recently was unveiled in Tokyo.


A prototype electric vehicle that uses eight different DuPont materials was recently unveiled in Tokyo. The project was a collaboration of technologies or products from the DuPont Automotive Center in Nagoya, Japan, and more than 30 other companies.

The vehicle, called SIM-WIL, was developed by SIM-Drive, a venture capital firm that manufactured the prototype electric vehicle with the “in-wheel motor technology” by which a motor was directly installed in a wheel. This unique technology, together with combined technologies from diverse industries, would increase the power efficiency and allow a vehicle to run 351 kilometers per charge, which is about 1.5 times more than electric vehicles currently available in the market.

Eight DuPont products were applied in this project:
•    DuPont™ Zytel® HTN high performance polyamide.
•    DuPont™ Kapton® polyimide film.
•    DuPont™ Kapton® JP films.
•    DuPont™ Cromax® Pro waterborne basecoat.
•    DuPont™ChromaClear® clearcoat.
•    DuPont™ Sorona® renewably sourced fiber.
•    DuPont™ Corian® solid surface.
•    DuPont™Voltatex™ impregnating resins, wire enamels and core sheet varnishes.

The participation of the Automotive Center demonstrated its commitment to focusing on hybrid electric vehicle (HEV) and electric vehicle (EV) business development and accelerating collaboration with customers to further advance these respective technologies.

Zytel® HTN was selected and adopted for a motor bobbin in the SIM-WIL because of its superior toughness, which is required for the coil winding process versus polyphenylene sulfide, which has been widely used for the part.

“This project paves the way for Zytel® HTN to further penetrate into the EV and HEV automotive segments, as well as being a great example of ‘inclusive innovation’ driving advancements in the energy megatrend,” said James Hay, regional director for Performance Polymers, Asia Pacific.

Minoru Amoh, president for DuPont K.K. Japan, said participating in this project not only helps enhance our presence in the EV and HEV industries, but also provides opportunities to work with potential customers who are willing to continuously collaborate with us.

“We have obtained much knowledge through this process and this opportunity will help us accelerate technology development going forward,” said Amoh.