Smartphone batteries are both our best friend and our worst nightmare. Whether it’s because they can never quite make it until we get home, or that they need charging twice a day they’re the gadget we simply can’t live without.
In extreme cases though, the smartphone battery can prove itself to be more than a little dangerous, with cases cropping up every year of phones ‘exploding’ in owners’ pockets.
Samsung’s monumental decision to recall the Galaxy Note 7 for this very reason is further evidence that while we need them, lithium batteries are far from perfect.
So why do phone batteries keep exploding?
It’s not just Samsung that has suffered from this problem, indeed any gadget or device that uses a lithium battery is at risk from this same problem, and so to better understand why here’s a fantastically simple explanation of how your smartphone battery works, courtesy of TED Talks. Read more