Scientists are claiming a world first in developing a way to charge mobile
phones using human urine.
Scientist have been able to charge a Samsung phone by putting urine through
a cascade of microbial fuel cells. They have generated enough electricity to
send text messages, browse the internet and make a brief phone call.
The scientists now plan to develop the technology to be able to fully charge
the handheld device.
The discovery has been made by a team of experts working at the Bristol
Robotics Laboratory
“We are very excited as this is a world first, no-one has harnessed power
from urine to do this so it’s an exciting discovery. Using the ultimate waste
product as a source of power to produce electricity is about as eco as it gets.”
The microbial fuel cells act as an energy converter, which turns organic
matter directly into electricity, via the metabolism of live microorganisms.
Essentially, the electricity is a by-product of the microbes’ natural life cycle,
so the more they eat things like urine, the more energy they generate and for
longer periods of time.
The electricity output from microbial fuel cells is relatively small and so far
the Bristol scientists have only been able to store and accumulate these low
levels of energy into capacitors or super-capacitors, for short charge or
discharge cycles. It is the first time they have been able to directly charge a
mobile phone battery.
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