Sony has unveiled a paper-powered battery prototype in Japan.
The technology generates electricity by turning shredded paper into sugar which in turn is used as fuel.
If brought to market, the innovation could allow the public to top up the power of their mobile devices using waste material.
The team behind the project said such bio-batteries are environmentally friendly as they did not use harmful chemicals or metals.

























A vaccine that may prevent HIV has been given the green light by the U.S. Food and Drug Administration to begin clinical trials in humans, according to Canadian researchers.
