An interesting experiment trying to prove that the energy produced by induction would be able to charge certain smartphones like Nokia Lumia 920. The only problem seems to still be high temperature, which at one time might melt or even explode while charging the phone. technology you no problem.
This does not seem to have arrested the man who directed the video, watching it so you can see the results of the experiment. There is a high probability that this is just a fake, but still interesting if this was possible.
Do not forget that charge a phone using heat is possible, is what makes the thermoelectric converting heat into electricity, but it is a totally different concept which for its part is tested and certified.