Tuesday, 30 April 2013

Now, charge your cellphones with puddle of water


  • Any convenient water can be harvested for power, from a kitchen faucet through to a puddle in the jungle.
  • Researchers in Sweden have developed a new technique where you can charge your devices anywhere without electricity, provided there is a water source nearby.The new device leverages the team's more than 15 years of research on micro fuel cell technology and small flat Proton Exchange Membrane fuel cells at the Department of Applied Electrochemistry at KTH.
  • To use the PowerTrekk charger, you fill-up water compartment with about one tablespoon, close the lid and connect it to the electronic device with a USB cable.
  • It starts charging automatically as the water inside interacts with a small disposable metal disc causing hydrogen gas to be released.
  • When the gas combines with oxygen it converts chemical energy into electrical energy.
  • While in many ways fuel cells are similar to batteries, they are different in that electrodes do not become consumed making them finite.
  • Instead provided water and air is provided to the electrodes, these fuel cells will run.Very green power, water vapour is the only by-product.Currently, Powertrekk works with devices like cell and smartphones, digital cameras, ipods and GPS.
  • The company is looking into developing their fuel cells to function for larger devices like laptops

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