Wednesday, April 24, 2013
Battery Low? Give your mobile some water
2:12 AM
News,
Technology
A power source for your mobile phone can now be as close as the nearest tap, stream, or even a puddle, with the world's first water-activated charging device.
Based on micro fuel cell technology developed at KTH Royal Institute of Technology in Stockholm, the MyFC PowerTrekk uses ordinary water to extend battery life for devices of up to 3 watts.
Anders Lundblad, KTH researcher and founder of MyFC, says that the device can be powered by fresh or seawater. The water need not be completely clean.
"Our invention has great potential to accelerate social development in emerging markets," Lundblad says. "There are large areas that lack electricity, while mobile phones fulfill more and more vital functions, such as access to weather information or electronic payment."
A USB connector attaches the compact PowerTrekk charger to the device. When plain water is poured onto a small disposable metal disc inside the unit, hydrogen gas is released and combines with oxygen to convert chemical energy into electrical energy. The resulting charge is enough to power an iPhone to between 25 and 100 per cent of its battery capacity.
Lundblad has done research on micro fuel cells and small flat Proton Exchange Membrane (PEM) fuel cells for more than 15 years at the Department of Applied Electrochemistry at KTH. He says the business vision behind MyFC is to commercialize fuel cell technology and contribute to the development of environmental technology.