Last update on Jun 1, 2026
Reducing casing weight, meeting fire-resistance requirements, and building end-of-life recyclability into battery enclosures represent three design constraints that EV battery engineers are managing simultaneously – often with material systems that address only one or two of those parameters at a time. A thermoplastic composite solution designed to respond to all three is now available from Trinseo, developed at the company’s Global Innovation Center in Europe.
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Available in thin-wall configurations of 1.0 mm and 1.5 mm
The solution is built on Trinseo’s flame-retardant polycarbonate unidirectional (PC UD) tape technology and takes the form of a recyclable battery top cover. Available in thin-wall configurations of 1.0 mm and 1.5 mm, it is presented as an alternative to traditional metal- and thermoset-based casing designs. According to Trinseo, the architecture is designed to support lightweight construction, fire-resistant performance, recyclability, and cost efficiency within EV battery systems.
“This technology reflects Trinseo’s capability to address key requirements identified by OEMs and Tier-1 suppliers, and when used in these applications, Trinseo’s solutions can contribute to lightweight design, fire-resistant performance, recyclability and cost efficiency,” said Oliver Becker, vice president, Technology & Innovation, Plastics Solutions. “It illustrates how thermoplastic composites can support evolving EV battery casing architectures while addressing sustainability considerations and scalable manufacturing requirements.“
Support applications in drones, robotics, urban air mobility, and rail transportation
Beyond battery enclosures, Trinseo indicates that its thermoplastic composite portfolio – encompassing UD tapes and organosheets – has the potential to support applications in drones, robotics, urban air mobility, and rail transportation. The relevant performance parameters across these sectors include lightweight structures, high stiffness and strength, thin-wall design, fire resistance, corrosion resistance, and high-rate production capability.
The battery top cover demonstrator made its global debut at CIBF 2026 (Shenzhen, May 13-15) and will be on display at The Battery Show Europe 2026 (Stuttgart, June 9-11), where Trinseo has indicated it welcomes discussions with OEMs, Tier-1 suppliers, and industry partners on thermoplastic composite applications for battery casing and broader mobility systems.
You can review technical data on polycarbonate materials and compare performance parameters across available grades in the Master Catalog of Plastics.