Odziz
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Vanadium Redox Batteries
Vanadium redox batteries are low cost, low environmental impact batteries that have a superior deep cycling life and can be mechanically refueled in minutes. Suitable for green energy storage, backup power, electric vehicles and utility load leveling / peak shaving.
About
The vanadium redox flow battery was developed by Professor Maria Skylass-Kazacos and her team at the University of New South Wales, Australia. It is a low cost, low environmental impact battery that has a superior deep cycling life and can be mechanically refuelled in minutes.
The vanadium redox battery stores energy in a liquid electrolyte solution of vanadium pentoxide dissolved in sulphuric acid. The electrolyte can be charged or discharged by pumping it through the battery stack and either supplying electric power to the stack or taking power from the stack. It can also be recharged by having the spent electrolyte pumped out and a fresh charge of electrolyte pumped in.
The spent electrolyte can then be recharged in another battery with electricity from the mains or from renewable energy sources. This raises the opportunity for the establishment of refuelling stations so that electric vehicles could exchange their electrolyte and then continue on their way with no more delay than if refuelling with petrol or diesel.
Companies
* VFuel Pty (http://www.vfuel.com.au/) - Australia - V-Fuel has successfully secured an exclusive world-wide licence for the Technology from the University of NSW commercial arm, Unisearch Pty Ltd.
* Cellenium (http://www.vanadiumbattery.com/) - Thailand - A novel vanadium redox flow battery architecture which is more efficient, more stable, and safer than other vanadium battery designs.
* RE-Fuel (http://www.refueltec.com/) - U.K. - RE-Fuel powered vehicles offer the major benefits of zero emissions at point of use with virtually silent operation. The life of the battery is not affected by the state of discharge as is the case with conventional lead-acid; The performance of the battery is not affected by temperatures within the range of 0 – 45 oC.
* VRB Power Systems (http://www.vrbpower.com/) - Canada - The VRB Energy Storage System (VRB-ESS) can economically store and supply large amounts of electricity on demand and is focused on stationary applications. It is a long life, cost effective, low maintenance, efficient technology that allows for the scalability of power and storage capacity independently.
* Pinnacle VRB (http://www.pinnaclevrb.com.au/) - Australia - The Vanadium Redox Battery (VRB) is an electrochemical energy storage device, whereby energy (electricity) can be stored indefinitely in a liquid and can be recovered instantaneously. It’s a very big battery…with the capacity to store and deliver power on a commercial scale for electricity networks.
Applications
* Wind and Solar Energy Storage (http://www.vrbpower.com/applications/renewable-resources.html)
* Remote Area Power Supply / diesel generator efficiency (http://www.vrbpower.com/applications/remote-area-power-supply.html)
* Load Levelling / Peak Shaving (http://www.vrbpower.com/applications/load-levelling.html)
* Emergency Backup / Uninterrupted Power Supply (http://www.refueltec.com/applications.html)
* Electric Vehicles
Source Pure Energy Systems
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7/29/2006, 7:42 pm
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