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Generator Turns Everyday Vibrations Into Smartphone Power

Generator Turns Everyday Vibrations Into Smartphone Power
Work

A film that acts like a sponge is the key to picking up subtle movements that could power your device.

Rachel Pincus
  • 25 february 2014

 

Ever wish there was something constructive that could come out of dropping or jostling your phone? Then you’re in for a treat. The newest advance in piezoelectric generators, which polarize crystals in a battery as a result of mechanical stress, has been developed by a group of researchers at University of Wisconsin, Sun Yat-sen University in China and the University of Minnesota Duluth, and it’s tiny enough to be embedded inside a cell phone or cell phone case. The results were published in the journal Advanced Energy Materials. According to a press release from the University of Wisconsin-Madison, it’s all about inserting interconnected pores of the correct size to get normally rigid materials to be as sensitive to vibrations as a sponge:

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