Researchers have made a device that can charge 40 phones simultaneously.
But the interesting thing is that you can charge these 40 phones being 5m away from Power Source Wirelessly.
This research was mainly successfull due to Chun T.Rim ,professor of Nuclear & Quantum Engineering at KAIST on April 16,2014.
The device can be scientifically explained as Dipole Coil Resonant System ( DCRS ) . The power get’s transferred by induction.
This technique was inspired by CMRS (Coupled Magnetic Resonance System) , deviced in MIT , which helped transfer power magnetically.