KineticCharging
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Apple trying for patent on electromotive charging, could use that confident stride to charge iPhones
We've seen the concept of electromotive (movement-based) charging before, but it usually comes at the cost of either a clunky design or a limitation to very low-power devices like watches. Apple has been experimenting with a concept that could power gadgets as big as iPhones and iPods with that spring in your step -- and without the bulk of any extra wires. A newly published patent application uses flat, printed coils to generate electromagnetic induction through movable magnets; as the device bounces around in your pocket, the magnets slide past the coils and run them through the magnetic fields they need to build electricity. It all sounds grand, but it's hard to tell from the very recent June filing whether the technology is enough to keep devices completely powered or simply delays the inevitable. We'd still suggest getting back into shape, though, in the event that morning run can one day save you from hunting down a wall outlet.
Nokia wants patent on self-regenerating phone batteries, piezoelectrics and much magic involved
In Nokia's own words, what we're looking at is a "piezoelectric kinetic energy harvester." Working along the same principles as kinetic wristwatches have done for a long time already, Nokia's idea is to capture the energy generated by the phone's movements and to refashion it into beautiful, clean-as-a-whistle electric power. By allowing the heavier internal components to move on rails within the phone as part of a "force-transferring assembly," the Espoo think tank has figured out a way to capitalize on all the small forces of acceleration and rotation that we subject our phones to on a daily basis. It would seem overly ambitious to expect this to replace the trusty old charger, but we give credit to Nokia for even thinking about it. Check out some schematics of how this would work after the break. [Thanks to everyone who sent this in]
