Approval for glass fiber composite

Sabic reports that one of its glass fiber composites is the first polymer used in electric vehicle (EV) battery systems to receive UL Verification for claims of thermal and mechanical performance.

Stamax 30YH570 30% glass fiber reinforced copolymer resin earned the UL Verified Mark from Underwriters Laboratories based in the UK.

“Although thermal runaway incidents are extremely infrequent, the safety-conscious automotive industry is highly focused on ensuring that the design and performance of EV battery systems prolong the time available to exit a vehicle by delaying the propagation of a fire beyond the battery pack for as long as possible,” the company said.

In tests, the material withstood an internal box pressure of 250 kPa and an internal box temperature of 420°C, Sabic said.