Conga
08-16-2005, 12:46 PM
The urine-powered battery was able to generate a voltage of about 1.5 volts with a corresponding power of 1.5 micro-watts using just 0.2 millilitres of urine, says Lee. And if a second droplet of urine was added 15 hours after the battery was first activated, the replenished urine could generate still more electricity.
The battery is currently suited for use with disposable devices it is not yet ready to power laptops or iPods. "But if, for example, we place a small cellular phone or transmitter on a plastic card, the chip will work as a disposable biofluid-activated means of communication in an emergency, Lee told New Scientist. In this case, the size will be less than that of a credit card.
http://www.newscientist.com/article.ns?id=dn7850
The battery is currently suited for use with disposable devices it is not yet ready to power laptops or iPods. "But if, for example, we place a small cellular phone or transmitter on a plastic card, the chip will work as a disposable biofluid-activated means of communication in an emergency, Lee told New Scientist. In this case, the size will be less than that of a credit card.
http://www.newscientist.com/article.ns?id=dn7850