Imagine how many times a day you touch your touchscreen phones. Now imagine how frustrated you get when your phone battery dies. Well in the future the battery will not die out the more you touch your phones screen. Researches are developing a touch-responsive nano-generator film that charges your phone while in use. What is in use now are hard electrodes that consume a lot of energy. The theory behind this film is it is a flexible and makes use of of the piezoelectric effect--the tendency of some materials to generate an electrical potential when they're mechanically stressed. By this method every time you swipe and touch your phone you supplement the energy remaining in the battery of the electronic device.
This small breakthrough is a window into developing other tools that recharge for normal use. Creating a quasi-perpetual device that only needs to be recharged every so often instead of all the time. The technique could be applied to artificial hearts. By just the beat of the heart the heart adds more power to itself. Applications are endless with this form of nano technology.
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