New smartphone prototype is charged with ambient sound

New smartphone prototype is charged with ambient sound
Battery life is usually number one on the list of concerns that users have when choosing a new mobile device. Battery technology has been slow to keep up with the devices that are with us all day long, and so manufacturers have had to take other routes - larger devices for larger batteries, or faster charging. But, a new breakthrough with sound waves could let you leave your charger behind for good.

Researchers with Queen Mary University of London have teamed up with Nokia to build the first prototype smartphone that can be charged using only sound waves. QMUL's Dr. Joe Briscoe and Dr. Steve Dunn first came upon the idea last year when they noticed that playing music improved the performance of solar cells. From there, the team developed a nanogenerator capable of collecting energy from ambient sound. The key to the nanogenerator was zinc oxide, which can create voltage when it expands and contracts. Zinc oxide was formed into nanorods which could generate five volts of electricity, enough to charge a phone

The team has already been able to cut costs of production for the nanogenerators, but the technology still needs time to mature and be built to scale. Ultimately though, it could mean that mobile devices of the future will be charged with the everyday sounds around you, like traffic, music, or even just talking. As the technology matures, it could extend battery life, or mean that you'll never have to plug in your phone again. 




1. Oğuzhan_77

Posts: 112; Member since: Nov 18, 2013

I think smartphones's back cover have solar charge.

2. ArtSim98

Posts: 3535; Member since: Dec 21, 2012

Umm... Michael. This was just posted in an article bu Paul :D

3. Armchair_Commentator

Posts: 222; Member since: May 08, 2014

*Blaring heavy bass* what are you doing?!? I'm charging my phone!

4. 0kax0el0

Posts: 238; Member since: Nov 15, 2012

Never run out of battery in that concert you've been waiting for so long.

5. uchihakurtz

Posts: 428; Member since: Nov 12, 2012

So if I set music on my way phone's loudspeaker I'll have infinite power??

6. elitewolverine

Posts: 5192; Member since: Oct 28, 2013

No but you can significantly reduce the loss of energy conversion. It is like getting power back from brakes in a ev. So instead of lasting 4hrs say 8hrs now. Then add in ambient sound and it goes even longer.

12. 0xFFFF

Posts: 3806; Member since: Apr 16, 2014

Of course there are specialized fart apps that contain massively powerful sounds that can actually give your phone enough juice to last a while. Samsung is working closely with these apps so that Ultra Fart Power can directly work with Ultra Power Saving mode.

7. ArtSim98

Posts: 3535; Member since: Dec 21, 2012

Why is this article still here? Are PA moderators blind?

8. dmh0284

Posts: 50; Member since: Apr 04, 2014

If this technology only worked with Creed and Nickleback, would you still be interested?

9. neela_akaash

Posts: 1239; Member since: Aug 05, 2014

Leave it... Bring Tony Stark and ask him to create an ARC REACTOR for mobile devices...

10. bigcjm

Posts: 57; Member since: Jul 27, 2014

great idea. Definitely good use of wasted energy. It'll be interesting to see when or if its every implemented.

11. M5OOO

Posts: 11; Member since: May 15, 2013

greaaaat ... then my phone never power off!

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