Scientists in Britain have claimed that they have been able to generate enough power from human urine to provide cellphones with enough energy to do basic tasks like send messages and browse the internet.
Researchers from the University of Bristol and Bristol Robotics Laboratory in south west England said they had created a fuel cell that uses bacteria to break down urine to generate electricity, in a study published in the Royal Society of Chemistry journal Physical Chemistry Chemical Physics.
“No one has harnessed power from urine to do this so it’s an exciting discovery,” said engineer Ioannis Ieropoulos.
“The beauty of this fuel source is that we are not relying on the erratic nature of the wind or the sun; we are actually reusing waste to create energy.
“One product that we can be sure of an unending supply is our own urine,” he added.
The team grew bacteria on carbon fiber anodes and placed them inside ceramic cylinders. The bacteria broke down chemicals in urine passed through the cylinders, building up a small amount of electrical charge which was stored on a capacitor.
Ieropoulos hoped that the cell, which is currently the size of a car battery, could be developed for many applications. “Our aim is to have something that can be carried around easily,” he explained.
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