Scientists want torecharge your phone with urine

It's a liquid gold rush! Scientists find yet another
way to power our smartphones
The next time your smartphone battery dies, running
over to the rest room and relieving yourself might allow
you to recharge your phone. This is no joke. In Britain,
scientists have discovered a way to power smartphones
using urine
 

Worldwide there are over 2.5 billion people without
access to safe sanitation. In attempt to address this
need The Bill and Melinda Gates Foundation is funding
research on the topic: ‘Create the Next Generation of
Sanitation Technologies’. As part of the Grand
Challenges Exploration Scheme (Round 7) the Intelligent
Bio Energy Group were awarded a Phase-I grant for the
project 'Urine-tricity: electricity from urine'.
Urine-tricity successfully demonstrated the charging of a
commercially available mobile phone, using Microbial
Fuel Cells (MFCs) fed with real neat urine. Urine-tricity+
+ follows on as Phase II of the project, with the aim to
develop MFCs into a mature sustainable energy
technology with a direct application in everyday life that
could change the way people perceive waste and energy.
The proposed work is all about electricity generation,
whilst cleaning the urine ‘fuel’ and producing clean
water in addition to fertilizer, and is focusing on small-
scale MFC units, which have been shown to be more
efficient and energy-dense. The continuous flow nature
of the MFC technology facilitates continuous growth of
the constituent biofilm organisms, which clean the input,
and can be subsequently used as fertilizer. In essence,
the more powerful the MFC is, the greater are the rates
of urine utilization.