Is Apple Planning New Powering Tech for iWatch?

What could the innovative Apple offer in a smart watch that others arenEUt offering? A new report suggests that the EUwowEU factor could be a device that uses new powering technology.

The report, in SundayEUs New York Times, said that the tech giant has been experimenting with new ways of powering a wrist-based device. These include solar charging to power the light in the screen, which is expected to be curved. Apple received attention last fall when it posted a job ad for engineers with expertise in solar energy.

The company has also been working on charging a battery through energy generated by movement, a technology that is already being used in some analog watches. The energy would be generated in a small charging mechanism that is powered by the swinging movement of an arm.

Magnetic Induction

Apple has also been testing a method to charge a battery through magnetic induction, through which the phone is charged simply by laying it on a charging plate. The electrical current generates a magnetic field, which creates voltage. Nokia is already using such technology for some of its phones.

Other possibilities being investigated in Silicon Valley and elsewhere include a technology that utilizes piezoelectricity, created from the vibrations of some kinds of ceramics or crystals. One startup is developing lithium ion batteries that use polymer-coated silicon instead of carbon, resulting in a self-healing battery that has as much as 10 times the storage capacity of carbon. Researchers at the University of Washington are experimenting with the harvesting of energy from TV, cell and Wi-Fi signals already in the air, in order to power phone calls or text messages.

Even if alternative techniques for powering the device are not used, several possible innovative battery types could be employed. Samsung has introduced small curved batteries that fit inside wristbands and...

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