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Battery Enclosure Material Screening (BEMS) Services

BEMS evaluates the performance of battery enclosure materials in a thermal runaway event, outlined under UL 2596, Test Method for Thermal and Mechanical Performance of Battery Enclosure Materials.

Drawing of electric vehicle battery compartment

Electric vehicle battery enclosure safety

The need for safe and efficient lithium-ion battery systems constantly increases in the modern marketplace, from portable electronics to electric vehicles (EV). EV batteries typically cover the entire base of a vehicle. The enclosure cover in the vehicle is incredibly important, as it must protect the battery from outside elements and accidents, and it must also contain the risks it could pose to the vehicle and the occupant.

Moreover, as the automotive industry looks to decrease the weight of many components, manufacturers are increasingly changing battery enclosure materials to plastics and composites. To do this, the enclosure must be exceptionally strong as well as heat- and pressure-resistant — all while remaining relatively lightweight. Choosing the appropriate enclosure material before building an expensive prototype, therefore, plays a crucial role in minimizing safety hazards and other costly issues.

Using the Battery Enclosure Material Screening (BEMS) suite of tests developed by UL Solutions, we help automotive original equipment manufacturers (OEMs) and their suppliers choose the most suitable EV battery enclosure materials. Available under UL 2596, Test Method for Thermal and Mechanical Performance of Battery Enclosure Materials, we offer the Torch and Grit (TaG) test and the Battery Enclosure Thermal Runaway (BETR) evaluation.

Battery enclosure materials testing expertise

At UL Solutions, our services support you at different stages along the product development and automotive supply chain, from planning and design to material selection and the final production part approval process (PPAP), optimizing your time to market.

Our strong history in certification and collaboration with industry leaders on standards development makes us a trusted expert in the compliance arena. Stakeholders rely on us for knowledge and technical expertise to help address safety issues amid emerging technologies and products.

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