Yet another option??? Check out "Bendable battery could charge...

Yet another option???
Check out "Bendable battery could charge smartphone in seconds".
Scientists at Stanford University have invented an Aluminium battery so powerful it could revolutionise the industry. An iphone takes approx 2 hrs to charge, whereas the aluminium battery will take 60 seconds, as well as heaps more recharging than a conventional battery. Its very safe - even if you drilled into it, it won't burst into flames, and aluminium is cheaper than lithium.
Oh, and by the way, it also contains graphite.!!!