Charge your phone by turning it off

Nokia Evolve 3110

Nokia Evolve 3110

That’s what the future may hold. It may sound more like science fiction, but a prototype phone that harvests power from electromagnetic radiation has researchers at Nokia convinced of the ability to recharge a phone without plugging it in.

Nokia is working on technology that draws power from ambient radio waves—maybe enough to keep a mobile phone charged.

Ambient electromagnetic radiation—emitted from Wi-Fi transmitters, cell-phone antennas, TV masts, and other sources—could be converted into enough electrical current to keep a battery topped up, says Markku Rouvala, a researcher from the Nokia Research Centre, in Cambridge, U.K.

Using electromagnetic radiation that constantly surrounds us because of Wi-Fi, cell phone, and TV antennas, power generation is much like that of RFID tags. Nokia says the technology will likely work with a solar panel to charge the phone battery.

[Technology Review]

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3 Comments

  1. bb
    Posted June 11, 2009 at 6:44 am | Permalink

    if this is true it will prove my theory of phone masts being evil totally wrong!

  2. Posted June 29, 2009 at 11:05 am | Permalink

    Do I read well?
    Nokia considers that there is enough residual energy in the air to charge my mobile from wifi antennas?

    And what about those people thinking that such residual energy is damaging their health?

    Sure that there will be concern about it.

    Ariel DAHAN
    Lawyer
    Paris Bar
    http://www.ddbd.com

  3. Posted June 30, 2009 at 6:23 am | Permalink

    Ariel, that’s a good point. I’m certainly not an expert on the subject, but EMF and other forms of energy radiation constantly surround us. I’m not sure if the practice of harnessing these will increase any potential health risk, but it does bring the idea into mind more than before.

    bb, only time will tell!

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