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These lithium-ion batteries can’t catch fire because they harden on impact

Lithium-ion batteries used in consumer electronics are notorious for bursting into flame when damaged. These incidents occasionally have grave consequences, ranging from burns to house fires to the crash of an airplane. Inspired by the weird behavior of some liquids that solidify on impact, researchers have developed a practical and inexpensive method to prevent these fires. They will present their results today at the 256th National Meeting & Exposition of the American Chemical Society.

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