This ‘magical’ material made almost entirely of air can stop EV fires from spreading

A new anti-fire aerogel could help make EV batteries safer by stopping fires from spreading within the lithium-ion cells inside.

One of the problems surrounding electric vehicles is the fire hazard that lithium-ion batteries pose if they get too hot and have some kind of defect. Now, though, researchers seem to have come up with a type of anti-fire aerogel that is made almost entirely of air and can keep the fire from spreading from one lithium-ion cell to another. The new material is designed by Aspen Aerogels, which just received a $670.6 million loan to build a new factory in Georgia from the Department of Energy.

That’s because what usually happens in this situation is one cell catches fire, and then the temperature continues to rise until the fire spreads, igniting the other cells around it. This new material will make EV batteries safer from fires. The new material is perhaps the best thermal insulation in the world right now, John Williams, VP of Technical Services at Aspen Aerogels, told NPR.

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