VRB ESS – Vanadium Redox Battery
The VRB Energy Storage System (VRB-ESS) is an electrical energy storage system based on the patented vanadium-based redox regenerative fuel cell that converts chemical energy into electrical energy. Energy is stored chemically in different ionic forms of vanadium in a dilute sulphuric acid electrolyte. The electrolyte is pumped from separate plastic storage tanks into flow cells across a proton exchange membrane (PEM) where one form of electrolyte is electrochemically oxidized and the other is electrochemically reduced. This creates a current that is collected by electrodes and made available to an external circuit. The reaction is reversible allowing the battery to be charged, discharged and recharged.
it consists of two electrolyte tanks, containing active vanadium species in different oxidation states (positive: V(IV)/V(V) redox couple, negative: V(II)/(III) redox couple). These energy-bearing liquids are circulated through the cell stack by pumps. The stack consists of many cells, each of which contains two half-cells that are separated by a membrane. In the half-cells the electrochemical reactions take place on inert carbon felt polymer composite electrodes from which current may be used to charge or discharge the battery.
The VRB-ESS employs vanadium ions in both half-cell electrolytes. Therefore, cross-contamination of ions through the membrane separator has no permanent effect on the battery capacity, as is the case in redox flow batteries employing different metal species in the positive and negative half-cells. The vanadium half-cell solutions can even be remixed bringing the system back to its original state.
The open circuit cell voltage at a concentration of 2 mole per liter for each vanadium species is 1.6 V when fully charged. The relatively fast kinetics of the vanadium redox couples allows high Coulombic and voltage efficiencies to be achieved without costly catalysts. The same current is passed through all of the cells as they are arranged in series. Such systems have many admirable properties including high efficiency, long cycle life, ease of scalability and negligible environmental impact.
http://www.vrbpower.com/index.html
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Tagged with: vrb vanadium
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They sold out to …
They sold out to CHINA in January!!!!
you can hire some …
you can hire some Electrical Experts from the Retrenched Auto workers, (instead of moving it to china..)…mass produce it and Make some installations in Developing countries with financing from thier goverments, Maybe INDIA, BRAZIL, ARGENTINA, etc….Keep up the Great American Spirit of Innovation..God bless your Team..
Dear VRB-ESS
This a …
Dear VRB-ESS
This a Great technology..Kudos to all the people to strived to develop it, This is what we need to Revive America from the current economic slowdown, If only you could Built it en masse , maybe move manufacturing to Detroit,
I think this is …
I think this is alot better then the fuel cell system with hydrogen ( wich is promoted to much and will never work ) And lifepo4 battery’s for vehicles.. ( still needs development ).
These battery’s as a buffer in large windmill plant’s. We must accept what nature has given us.. the energy we can get from it without damaging it. We people do have the knowledge. i still don’t understand why people are so blind.
The world’s largest low-cost deposit of Vanadium was announced a couple months ago and the company that found it is sky rocketing on the stock market… http://www.uraniumstar.com these guys have great info on the future of vanadium for both green energy power grid and for boosting Lithium-ion car batteries by about 500% power. Follow my vanadium tweets @vanadiumjoe and check out Uranium Star if you want to invest in vanadium’s future.
VanadiumJoe
Dilekz
I think that people are not educated to think with this data and they tend to believe whatever they are told.
From what im seeing these days is that vanadium is taking over lithium. I own lithium-stocks.net and lithiumsite.com they were getting 10k – 15k visits per month and my vanadium site was getting 1k visitors per month. This went on for allmost 2 years now. Well its changed, its opposite. My vanadium stocks site gets no traffic now which tells me that no one cares about lithium now. And everyone is going to my http://www.vanadiumsite.com now. My entire lithiumsite.com and lithium-stocks.net email lists have switched. And polls tell me that they are 87% for vanadium and 44% for lithium. Now those are results.
Richard.
http://www.vanadiumsite.com/vanadium-energy-stocks
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Listen to this guy readers, he knows what he’s talking about!