The first urine-powered paper battery has been created in Singapore, reports New Scientist . The credit-card sized unit could be a useful power source for cheap healthcare test kits for diseases like diabetes, and could even be used in emergency situations to power a cell phone.
To activate the battery, a drop of urine is added and soaks through the sandwiched filter paper . The chemicals dissolve and react to produce electricity. The magnesium layer acts as the anode, losing its electrons. And the copper chloride acts as the cathode, mopping up the electrons.[via Textually, Read Full Article Here]
