I’ve been reading “Hot, Flat, and Crowded” by Thomas Friedman, and two of the most important issues we are faced with is how to produce more clean electrical power and how to maximize the efficiency of the power we use now.

A great application would be to recover power from wifi or other continuous RF sources. A modified cell phone battery with an antenna that could scavenge enough RF power to eliminate the standby draw of a phone while in your office or home could add hours or even days to a single charge.

The phone itself could also incorporate this technique, but a basic battery would be faster to market, could be ‘third party’ and could even be offered as an ‘upgrade’ to a basic phone by the manufacturers.