Smartphones battery can be charged though our voice: The Sound Charging technology | TechnoDaily

The Sound Charging Technology

In today's world, all the smartphone industry companies are in a race to touch the highest peak of speed in charging technology but meanwhile, Xiaomi has introduced a new technology named "Sound charging device".Normally, chatting or playing games for a long duration may cause a huge battery drain, and if you are in a situation where there are no charging stations, power banks, or electricity, Then that situation can make you in trouble. Isn't it? But researchers at South Korea  University have discovered a new and innovative way that would use the sound of your voice to charge your phone. Here, is a brief guide on how it works:

• Can you really power a cellphone by talking into it?

In theory, this sound charging technology works. Even though for now you actually need to shout very loudly to offer some millivolt of power to your battery. A prototype is made which needed around 100 decibels —which is equivalent to noisy traffic or a jet passing overhead just to get 50 millivolts of electricity. That's enough to offer a smartphone battery a lift, but far away from the 5 to 12 volts needed to properly charge the standard mobile device.  But the lead researcher, of the Singapore University of nanotechnology institute, is confident that the proper development and planning will make this new innovative technology more practical.

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• How does it work?

The scientists trapped nano-scale strands of flowers of zinc between two flexible electrodes. The Incoming sound waves hit a sound-absorbing pad on top of the device, causing the small zinc wires to compress and release. The movement generates a tiny electrical current. And your voice is not the only sound the nanogenerator can convert into power. Music or any ground noise, like the sound of traffic, also will work.

In short, Firstly it collects the voice from the surroundings and using those environmental vibrations get converted into mechanical energy and then converted into electrical energy.

• Would this only work with phones?

No, there are plenty of other possible applications of it. The same sound charging technology, when gets fully equipped, can be used to recharge electric cars by tapping into the energy in traffic noise. Sound-insulating walls along highways also could trap and store the sound of passing vehicles, both reducing noise levels and capturing wasted energy. It's actually a win-win situation.