This is what happens inside a battery right before it explodes

<p></p><p> <img alt="inside a lithium ion battery" src="http://www.popsci.com/sites/popsci.com/files/styles/large_16x9/public/images/2016/12/lithium-ion-battery.jpg?itok=NWsWfUQd" /> Technology <p>Overcharged batteries turn into deformed jellyrolls</p> A new paper...