Sony Made bio-battery which generate energy from water, paper, and cardboard

Sony showed up bio battery at Eco-Products 2001 exhibition in Tokyo,, this bio-battery which generate energy from paper, cardboard, mixed up with water and it generate energy to turn on small fan with this...

In initial stage this bio-battery is not as powerful as dry-batteries which are available in the market it can your MP3 Player but the most important thing is this environmental friendly because it does not contain any chemical or metal which makes it bad.. which makes environment very good..

Good Job Sony keep it up!

Source: cnet