Singapore researchers have created a urine powered battery the size of a credit card.  A single drop of urine generates 1.5 volts, which is equivalent to one AA battery.

How does the battery work?

The battery is made of a layer of filter paper steeped in copper chloride sandwiched between strips of magnesium and copper, then laminated in plastic.

It's activated when a drop of urine is placed on the battery. The urine soaks through the paper providing the necessary conditions to generate electricity.

The magnesium acts as the battery's anode, shedding its electrons, while the copper chloride acts as the cathode, gathering them up.

This electron flow delivers power greater than 1.5 milliwatts...

I have to say, this is a creative way to generate power--We'll never have a short supply of urine.

Trackback URL for this post: