New advancement in nanotechnology could help keep gadgets juiced without wall chargers

mobile

What if you could charge your phone by simply tapping on the touchscreen display — never having to worry about plugging it in — or add more juice to your laptop every time you typed? New developments in piezoelectric technology at the RMIT University in Melbourne, Australia have brought those dreams closer to a reality. Researchers there have been able to create a new thin piezoelectric film that is capable of turning those taps, or “mechanical pressure,” into electricity. “The power of piezoelectrics could be integrated into running shoes to charge mobile phones, enable laptops to be powered through typing or even used to convert blood pressure into a power source for pacemakers – essentially creating an everlasting battery,” lead co-author, Dr. Madhu Bhaskaran, said in the report, which was published in the July issue of Advanced Functional Materials. The technology isn’t quite there yet; Bhaskaran said that the next step will be using the piezoelectric materials to generate enough electricity to actually power our devices, and then building them into “low-cost, compact, structures.” We’re dreaming up super thin devices with minuscule batteries that are always on, but the report didn’t suggest how long it will take for that fiction to become fact.

[Via Fast Company]

Read

6 Comments
  • ThatGuy

    If you rub it more than twice you’re charging it….

  • http://www.searingarrow.com AlienSix

    This would be a dream

  • Chrisfen

    Nanotechnology is 3l33t

  • Rudy Herfurth

    mmmm nanotechnology coursing through my body – I wonder what interesting cancer we will be inventing now!

  • Ned Ryerson

    As someone who has done extensive research with piezoelectric energy harvesting, this sort of thing on this scale will most likely never be practical. 

    Energy harvesting from a sheet of piezoelectric material even at the macro scale produces power on the order of microwatts (milliwatts if its thick enough but then you’re talking about a stack rather than a sheet).  The impedance load required during the charging of a battery makes it completely impractical because there is so little current generation that the energy is almost entirely dissipated across the load of the battery.  It takes a relatively large piezoelectric sheet subject to a sinusoidal vibration at the piezo’s natural frequency to even have a chance at charging a battery. And that’s at the macro scale.  There’s no chance at the nano scale.

    You either need A LOT more force than a finger press or A LOT more piezoelectric material to stress

  • Theblackberrykid

    I just watched a show on the science channel that talked about batterys and nano technology using carbon nanotubes. Was pretty interesting but if I remember correctly Dr. Michio Kaku stated it’d be about 50 years till it becomes available.

blog comments powered by Disqus