SABIC’s STAMAX 30YH570 resin awarded a UL Verified Mark: The first of its kind event for EV batteries

SABIC has received the UL Verified Mark from Underwriters Laboratories for its STAMAX 30YH570 resin, positioning itself as the first polymer utilized in EV battery systems to obtain such emblematic verification for thermal and mechanical performance claims. This 30% glass fiber-reinforced copolymer resin is a prominent offering in SABIC's BLUEHERO electrification campaign. UL Verification, earned through a rigorous, unbiased evaluation, serves as a testament to the product's flame delay capabilities, bolstering customers' trust, as stated by SABIC.

Most EV batteries function reliably for their intended lifespan. However, the automotive industry is deeply committed to safety, particularly regarding the rare but serious phenomenon of thermal runaway. This term refers to a dangerous chain reaction in a battery cell: as it overheats, it induces further heat in itself and potentially neighboring cells, which can lead to fires or explosions.

To mitigate such risks, the industry focuses on designs that maximize the time available for vehicle occupants to exit safely. This involves delaying any potential fire's spread beyond the battery pack. Achieving this safety standard requires careful selection and use of fire protection materials in components like enclosures, covers, trays, and the thermal barriers that separate battery cells.

Exalted with the awarding of the verification mark, Venkatakrishnan Umamaheswaran (the global Automotive Marketing director, SABIC) considers this achievement as an unprecedented step in relation to the strides towards the ever-evolving landscape of the EV batteries. He further adds to this by considering the momentous event as another testament to the seminal and incredible success of SABIC’s BLUEHERO project.

Under the UL 2596 testing method for thermal and mechanical performance, the STAMAX 30YH570 resin showcased its resilience by withstanding an internal box pressure of 250 kPa and a temperature of 420°C. These results were based on three tests using a 4mm panel thickness. Notably, SABIC's material boasts an intumescent capability that aids in fire suppression, combined with high stiffness, strength, and ease of processing.

Receiving the UL Verification is a significant nod to SABIC's advancements through its BLUEHERO initiative. It underscores the superior performance of thermoplastics over traditional steel and metals for battery packs, highlighting benefits like weight and cost savings, enhanced functional integration, and improved electrical and thermal insulation.

According to Procurement Resource, SABIC's STAMAX 30YH570 resin, part of their BLUEHERO initiative, has secured the UL Verified Mark for standout performance in EV battery safety tests. This breakthrough in thermal and mechanical resilience emphasizes the shift from traditional metals to advanced thermoplastics. SABIC's achievement addresses concerns about thermal runaway in EVs, with their global Automotive Marketing director viewing it as a significant stride in battery evolution.