Get ready to say a warm goodbye to smartphones with batteries and cable charger. Well, this sounds funny even to me, but the fact still remains that the era of charging smartphones with charger will soon be scraped out.
What and how will we be able to charge our phones?
I believe this is what is going on in your mind right now, and the answer is WIFI. What! How is it possible to charge phone using WiFi? Lols, Do you know that the radio signal transmitted by WiFi and Bluetooth protocols are nothing but electromagnetic waves modulated? am not surprised because everybody don’t know of this.
This simply means that WiFi and Bluetooth also carries energy. Backing up this fact, a team of researchers from MIT and the University of Madrid has developed a flexible system that can transform electromagnetic waves into electrical energy. It is a structure that can be integrated into fabrics, covers for objects and so on.
Clearly, the project does not intend to revolutionize the world of energy, since the signals now present in all cities thanks to radio towers, WiFi and Bluetooth allow you to get, on average, about 40 microwatts, but sufficient to make it work microscopic devices or to turn on an LED.
The MIT research team made an antenna using molybdenum sulfide as its main material, an extremely thin semiconductor that can be used to make sheets with just a few atom; the first prototypes made, as was to be expected, are not real champions of efficiency, only 30% of the energy is converted, obtaining low powers but still able to feed small sensors in the purely medical field.
The idea is to develop this antenna to make it able to power devices more expensive in terms of consumption, without having a battery inside them (or have small one), Another possibility would be to spread this very thin sheet on walls and floors, making them able to capture the energy of electromagnetic waves and make it available to power the devices connected to the building.
Seems like we are now in physics class right? Lolz, well this is the future, and technology is advancing on daily basis. All we have to do is to keep calm and wait a little longer. Wireless charger has been launched which allows you to only place your smartphone on top of the charger instead of plugging in the USB port, although it is compatible to few smartphones.
What do you think about this new innovation by MIT?