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Solvay will introduce the new material for vehicle electrification as well as a PPA grade for battery thermal runaway prevention at Fakuma this month.

Stephen Moore

October 11, 2023

2 Min Read
electric car
Sven Loeffler/iStock via Getty Images

Specialty materials supplier Solvay has announced the introduction of two new Ryton polyphenylene sulfide (PPS) grades as part of its growing range of Supreme polymers targeting significant performance leaps in electrification. Ryton Supreme HV and HF are specifically developed to shorten charging times and increase driving range. Further, Solvay employs recycled glass fiber in the compounds, which are also manufactured using renewable energy.

“OEMs and Tier 1 suppliers in automotive are constantly seeking ways to improve safety, reliability, and sustainability without compromising system cost efficiency,” said Brian Baleno, head of automotive marketing at Solvay Materials. “We constantly work with our customers to find solutions to their challenges, leveraging the potential of our materials portfolio and our expertise to bring new innovations to life.”

Best-in-class electrical performance

As a high-voltage PPS material, Ryton Supreme HV combines a comparative tracking index (CTI) of 600 V for best-in-class electrical performance and electric thermal index (RTI) >175°C for superior heat resistance with a UL 94 V-0 flammability rating. This reportedly represents a step-change toward safer and more reliable components in power electronics, such as housings and chip carriers.

Ryton Supreme HF offers high mechanical strength and excellent flowability for 0.3-mm thin-wall components. It can make a significant contribution to miniaturization and package optimization, according to Solvay. Target applications include bobbins for stators and insulators, where lower wall thicknesses reduce the temperature of coils and facilitate reliable thermal management.

PPA stops thermal runaway

Solvay is also introducing Xencor XTreme polyphthalamide (PPA) for battery thermal runaway protection. Xencor XTreme PPA long-glass-fiber (LGF) grades are designed to resist direct flame exposure at 1000℃ for more than 10 minutes, 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 United States, and other countries. The material also has a high glass transition temperature (Tg), which enables dimensional stability of the parts under battery operating conditions.

“Xencor XTreme is designed for battery components such as overmolded busbars, module end plates, and fixtures, and extends our portfolio of battery solutions. This unique product range gives engineers the freedom to address some of their biggest challenges in terms of safety, power density, security, and lightweighting," said Baleno.

Key benefits of Xencor XTreme include high stiffness, strength and impact resistance, best-in-class electrical insulation with a comparative tracking index of >600 volts, and high dielectric strength.

The new Ryton PPS Supreme and Xencor XTreme PPA materials will be on display at Solvay’s booth 4213 in hall B4 during the Fakuma trade show from Oct. 17 to 21 in Friedrichshafen, Germany. Its experts will appear at the Exhibitor Forum on Oct. 17 at 11:40 a.m. to present, “The Supreme range: Designed to meet e-mobility challenges and make drivers’ lives easier.”

About the Author(s)

Stephen Moore

Stephen has been with PlasticsToday and its preceding publications Modern Plastics and Injection Molding since 1992, throughout this time based in the Asia Pacific region, including stints in Japan, Australia, and his current location Singapore. His current beat focuses on automotive. Stephen is an avid folding bicycle rider, often taking his bike on overseas business trips, and is a proud dachshund owner.

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