Using Sound Waves To Charge Cell Phones

We’ve seen ways to charge cell phones by fuel cells, sunlight, wind and even dancing. But what about with sound waves?

That might just be the next step for charging cell phones with a renewable energy – your voice.

Tahir Cagin, a professor at Texas A&M University, is figuring out a way to use piezoelectrics to harvest energy to charge devices and make them essentially self-charging gadgets. Using piezoelectric technology for energy harvesting is something we’ve been covering for years. But Cagin has come up with a reason to bring it up again.

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