Xiaomi has been breaking records in terms of charging smartphones. Recently, the company announced World’s first 200W fast charging which took just 8 minutes to fill a 4,000mAh battery. It also announced 120W fast wireless charging which filled the same capacity battery in just 15 minutes. Now, Xiaomi is working on a new charging technology that has not been launched by any smartphone companies and that is Sound Charging technology. The company has filed a patent for this new technology that will use sound to charge smartphones and other electronic gadgets.
The patent was filed by Xiaomi at China National Intellectual Property Administration (CNIPA). It also reveals some key details about the process of this new charging method.
Xiaomi Sound Charging Technology
The patent document reveals that the technology uses a Sound collection device for the storage of sound energy. Then, the sound energy passes through Energy conversion devices which convert the environmental energy into mechanical vibrations. The electronic device will convert the mechanical vibrations to AC, which then gets converted to DC to facilitate the charging.
Back in 2014, Nokia teamed up with researchers from Queen Mary University of London (QMUL) to develop sound charging solution for smartphones. Researchers explained, “when this surface is squashed or bent, the nanorods then generate a high voltage. This means they respond to vibration and movement created by everyday sound e.g. our voices. If you then put electrical contacts on both sides of the rods you can use the voltage they generate to charge a phone.”
Finally, The team managed to generate 5 volts and charge a Nokia Lumia 925. Coming back to Xiaomi Sound Charging solution, we don’t when the company will demonstrate the technology. Also, we not sure whether it will be commercially available or not in the near future.