A new material for battery thermal-runaway protection
Xencor Xtreme (photo) is a new family of long glass-fiber (LGF) polyphthalamide (PPA) materials for battery applications requiring resistance to thermal runaway and propagation. Xencor XTreme PPA LGF grades are designed to offer superior resistance to direct flame exposure at 1,000°C for over 10 min., providing sufficient time for passengers to exit the vehicle in the event of a thermal runaway, and meeting the latest global regulations in Europe, China, the U.S. and other countries. The materials are designed to retain an excellent level of electrical insulation after exposure to flame, helping to mitigate thermal runaway in batteries. More importantly, the material has a high glass-transition temperature ( Tg), which enables dimensional stability of the parts under battery operating conditions. — Solvay S.A., Brussels, Belgium