Viable Potato Batteries?
April 29, 2011
I'm sure many of us experimented as kids with turning a potato into a battery. I recently re-lived this experience with my seven year old son. It is a fun experiment, but the batteries produce limited voltage and current, so they are not terribly practical.
Now, researchers as Yissum Research and Development have come up with a way to increase the energy you can get from a potato battery by up to 10 times! They simply boiled it first. You can read the engadget story, or Yissum's orginal paper.
I'm thinking of issuing a challenge for building a robot powered exclusively by potato battery (other vegetables also acceptable). Any interest?
I'm out of town right now, but I'm going to try this out when I get home.