Hoverboards, e-cigarrettes, cell phones, the Tesla Model S and a rescue robot made by NASA – what do they have in common? They have all made news recently for exploding due to faulty lithium-ion batteries. Just a few months ago, Samsung was forced to recall over a million of their newly released Galaxy Note 7 phones. So what are lithium-ion batteries, why do they keep exploding, and why do we keep using them? Read the full transcript here: http://bit.ly/2ixh15Y