University of Bath scientists invent low-cost fuel cell powered by urine

Researchers at the University of Bath have developed a low-cost fuel cell that is able to run electronic devices, including mobile phones, and is powered by urine. Lecturer Dr Mirella Di Lorenzo referred to the “energy trilemma” – energy which is “secure, affordable and environmentally sensitive”. One way of solving the “energy trilemma” is through the use of “available indigenous resources” – such as urine. As it passes through the cell, the urine reacts with bacteria in order to produce electricity that can be used or stored. Each device costs just £1-£2 to make. A single cell can generate 2 watts per cubic meter, which could be increased by stacking together multiple cells. The small size and low cost means that the cells could be particularly useful in developing countries.

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