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Charge your smartphone with 'sound'? Xiaomi is looking to make you forget your charger with revolutionary tech

Xiaomi recently unveiled its Mi Air Charge technology that uses millimetre-wide waves to charge a device with a charging pad or wires.  Xiaomi recently unveiled its Mi Air Charge technology that uses millimetre-wide waves to charge a device with a charging pad or wires. 
Xiaomi recently unveiled its Mi Air Charge technology that uses millimetre-wide waves to charge a device with a charging pad or wires.  (Xiaomi)

Sound charging for your smartphone? Folks at Xiaomi are looking to make you forget your charger. Here is what is in-the-works and how the revolutionary new tech works.

Once there was science fiction to get thrilled by. Now, life is no lesser than science fiction, as can be gauged from the raft of revolutionary tech objects that are constantly being announced and actually rolled out. It simply blows your mind away especially when it concerns smartphones and things related to them. Over the past decade, smartphone technology has been improving across multiple fronts, including screen technology, processing power, wireless connectivity and more. However, one aspect that has progressed at a slower rate is battery technology. So, instead, manufacturers have been working on improving charging technology, to speed up the charging process. Same is the case with Xiaomi. After announcing its ability to charge a mobile device’s battery at 200W, the company has reportedly now filed a patent for a novel ‘Sound Charge’ technology.

According to a report by GizChina, Xiaomi has applied for a patent with state agency China National Intellectual Property Administration (CNIPA) that suggests that the company has been working on charging technology to use sound to charge a device.

‘Sound Charging’, the technology that is being worked on reportedly involves two important components, according to the patent. It includes a “sound collection device, a plurality of energy conversion devices, and a power conversion device”. The report suggests that the device being worked on will convert environmental vibration to mechanical vibration, which will then be converted into alternating current.

A screenshot of the patent reportedly filed by Xiaomi, along with a translated version of the diagram representing the various components of the supposed device. 
A screenshot of the patent reportedly filed by Xiaomi, along with a translated version of the diagram representing the various components of the supposed device.  (GizChina)

This isn’t the first form of contactless wireless charging that Xiaomi has recently been working on. In January, we reported that the company had unveiled its ‘Air Charge’ technology that could finally leave wires and cables behind, along with charging stands. The company’s system, which is still not on the market, includes a five-phase interference antenna setup that detects a smartphone’s position in a room and then uses 144 antennas to transmit millimetre-wide waves to a target device using a focusing technology called beamforming to charge it.

The report suggests that there is no evidence of Xiaomi using the new rumoured ‘Sound Charge’ technology any time in the near future, but it is likely that the company could show off the technology in action sometime in the coming months. It appears that the company is still a few years away from making a device that is actually commercially viable.

In the meanwhile, the company is working on rolling out its 200W charging device, which will be a considerable jump over its existing 120W charging tech found on its smartphones, according to the report.

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