Exponent has published insights on mitigating thermal runaway events, such as battery fires and explosions, in lithium-ion (Li-ion) battery-powered systems exposed to severe weather conditions. The firm emphasizes the critical importance of environmental factors like temperature and humidity during the design and validation process for Li-ion cells and batteries.
The publication highlights that severe weather can accelerate the degradation of battery systems, citing examples like EV batteries submerged in saltwater after Hurricane Ian. Manufacturers, integrators, and OEMs can mitigate these risks by carefully considering battery form factors, assembly processes, enclosures, and the geographic deployment of their fleets.
Exponent recommends performing hazard analyses and testing batteries under elevated temperatures, high humidity, and corrosive environments to characterize performance and identify potential failure modes. This expertise is crucial for designing safer and more resilient battery systems, particularly given the increased proliferation of batteries in EVs and grid storage applications.
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