January 17, 2017 | Lottie, Exhibitions Developer, Science Museum

Like many people, I've been surprised to hear reports of fires involving mobile phone batteries. Lithium-ion batteries are used in lots of devices, but sometimes they can go wrong in a way that causes them to catch fire. So now scientists have created batteries with fire extinguishers built in.

A fire-retardant chemical sits inside a shell within the battery. When the battery gets very hot the shell melts, releasing the chemical and stopping the fire within seconds. I wonder when we'll start to see this in our own phones?


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Charged up

Rechargable lithium ion batteries are used in lots of devices, like phones and tablets.


Image: dtack/Flickr

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