EV / Battery Systems
Cell-to-cell thermal runaway barrier
ProblemBattery OEM needed cell-to-cell isolation rated for thermal runaway propagation under UL 9540A — existing felt barrier failed at 580°C.
SolutionCeramic-filled silicone thermal barrier sheets die-cut to cell footprint with PSA backing. PAX validated barrier through customer’s third-party test lab.
MaterialsCeramic-filled silicone 1.5mm · PSA backing · flame-retardant rating V-0
✓UL 9540A passed · 50K-pack run
