Scientists use nanogenerators in fabric to generate electricity
A group of scientists in the United States has a plan that will boost the run time of small gadgets like phones a MP3 players to possibly unlimited proportions, without the need for batteries. The scientists hope to do this with fabric that generates its own electricity.
The idea is that fiber-based nanogenerators would be woven into the fabric of a shirt and the friction cause by moving around would be transferred into energy to power the device. Scientists even say that simply standing in a breeze could generate all the power your iPod needs to play indefinitely.