Battery power at the tip of your tongue

Japanese inventor is developing batteries powered by water.

Flickr user tomblois

As kids, some people (none of us here at Crave, of course) licked batteries to experience a little jolt. Turns out that old pastime could now have a practical application--producing battery power. A Japanese inventor is developing a battery, made mainly of carbon-based compounds, that's activated by a single drop of water. Susumu Suzuki describes his device in a video interview with Reuters.

This eco-friendly energy source--which has an electric current as powerful as that of a standard manganese dioxide battery, its creator says--would be cheap to produce and could be recycled several times. Most notably, it could potentially be useful for fueling low-power gadgets in emergency situations. "For example, when you get lost on a mountain, by just licking (the battery's) surface, you can get electricity for a flashlight or a radio," according to Suzuki. "This will be an essential tool in the near future."

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