Saint-Gobain® Tape Solutions focuses on supporting customer needs through customization, testing, and simulation. The team often addresses thermal insulation and fire mitigation for EV battery packs, modules, and cells.
Leveraging global teams, material expertise, and strong simulation and testing capabilities is crucial for meeting specific customer requirements and creating products tailored to diverse battery configurations. The product offerings ensure high-temperature integrity and thermal insulation.
Some innovative products from the R&D teams provide advanced solutions for various EV components, including the pack and the battery management system of busbars.
Norseal® TRP5X Series and Norseal TRP-TT: New Additions to the TRP Product Family
Both the Saint-Gobain Norseal TRP5X Series and Norseal TRP-TT are mica-free composite materials designed for EV batteries. These silicone-based materials are UL 94 V0 equivalent, flexible at room temperature, and transform into ceramic at elevated temperatures.
With excellent fire-resistant properties, good EV battery insulation, and elasticity, they are reliable solutions for protecting against thermal runaway events. These products are typically applied on top of the module within the battery pack (the module cover or blanket) and are suitable for thermal insulation and fire prevention between battery packs, modules, and cells.
Detailed Overview of Norseal TRP5X Series
Key benefits of the Norseal TRP5X Series include its flexibility (mica-free), ease of assembly, and high-temperature fire resistance. It is also lightweight, approximately 35% lighter than its mica alternative, making it ideal for constructing lighter EVs.
Evaluations of the Norseal TRP5X Series show impressive results. After flame exposure for over 30 minutes, the Norseal TRP5X Series retained its structural integrity, with no cracks or flaking observed on the samples.
More About Norseal TRP-TT
Norseal TRP-TT is a thinner gauge product with performance similar to the Norseal TRP5X Series. Its thin gauge makes it suitable for winding busbars or high-voltage cables and for use as tape on challenging profiles. Norseal TRP-TT is ideal for busbar protection, providing both insulation and voltage resistance.
Norseal TRP-TT effectively reduces harm from thermal runaway of pack-level battery cells. During thermal runaway, the silicone composite maintains its structural strength and insulates up to 1000°C (depending on thickness), helping to mitigate fire spread and allowing passengers more time to exit safely.
Differences Between Norseal TRP5X Series and Norseal TRP-TT
The primary differences lie in density, thickness range, and TRP performance. For thermal and fire resistance, the Norseal TRP5X Series is best in class. When weight and space constraints are critical, Norseal TRP-TT is the preferred material.
Both Norseal TRP5X Series and Norseal TRP-TT are tested for their ability to meet the stringent requirements for effective EV solutions. Common tests include the 1000–1500°C torch test and UL94 test, with additional options for abrasive particulate, simulations, and various electrical insulation and mechanical tests per customer requirements.
Balancing Innovation and Safety
Thermal management is crucial for battery safety, performance, longevity, and the safety of EV passengers. Automotive engineers and our teams continuously advance battery technology. Through collaboration, market trend awareness, and ongoing R&D efforts, the goal is to balance innovation and safety.
Contact us to learn about the different thermal protection options available.
