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Clean Energy Solutions

XRG has achieved a significant increase in power density reducing stack size and weight of vanadium redox flow battery (VRFB) technology. Going beyond the industry boundaries, XRG is the first storage company to develop a high energy density electrolyte to introduce sustainable flow battery technology not only for stationary applications but also for mobile use. XRG combines the latest innovations in technology and reusable electrolyte and optimizes each application to achieve the most cost effective and the most energy efficient solution. Through collaborating with the best teams in the world, XRG guarantees the highest level of quality, safety and responsibility.

XRG stands for “exergy” denoting the maximum usable energy, or “qualitative” part, of any thermal process. (2nd law of thermodynamics).

XRG is developed by the wholly owned subsidiary of VanadiumCorp Resource Inc., VanadiumCorp GmbH in Germany

What are the advantages of Vanadium Redox Flow Batteries?

  • VRFBs have a lifespan of 20+ years
  • VRFBs offer immediate energy release
  • VRFBs are suitable for grid connection or off-grid settings – ideal for renewable energy
  • VRFBs can discharge 100%, without any damage to the battery
  • VRFBs are non-flammable
  • They ensure power and energy can be scaled independently
  • Vanadium electrolyte can be re-used and does not need to be disposed of
  • The batteries can be cycled more than once per day
  • They use only one element in electrolyte – V2O5
  • VRFB energy storage guarantees uninterrupted power supply

How does a Vanadium Redox Flow battery (VRFB) work?

  • A flow battery is charged and discharged by a reversible reduction-oxidation reaction between the two liquid vanadium electrolytes of the battery
  • Unlike conventional batteries, electrolytes are stored in separated storage tanks, not in the power cell of the battery
  • During operation these electrolytes are pumped through a stack of power cells, in which an electrochemical reaction takes place and electricity is produced
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