Talk-Powered Cell Phones Won't Need Batteries

alphadogg writes "It's possible that in the future conversations on your cell phone could generate enough electrical power to run the phone, without batteries. That's one possible outcome of recent work by a team of Texas researchers, who appear to have discovered that by building a certain type of piezoelectric material to a specific thickness (about 21 nanometers, compared to a typical human hair of 100,000 nanometers), you can boost its energy production by 100 percent. And the technology could power not just phones, but a whole range of low-power mobile devices and sensors. The breakthrough is an example of 'energy harvesting' that can convert one kind of energy, such as vibrations or solar rays, into electricity."

Comments

Re:If you can get the power down

[hedwards]

Because I rarely talk on my phone more than 10 minutes during the course of a month. And I still like to be able to receive calls on a random basis. Voice powered calling is worthless for people that spend that kind of time carrying the phone around rather than talking on it.

A much better solution would be to put something in that converts the jostling motion that handhelds are constantly subjected to into power. Sort of like the old self winding watches.