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Figure 2.2. – Comparison of discharge time and power rating for various EES technologies [Courtesy of EPRI]. Among electrochemical systems, redox flow batteries (RFBs) represent one of the most recent technologies and a highly promising choice for grid energy storage11. They are electrochemical energy conversion devices, which exploit redox processes of species in solution in fluid form, stored in external tanks and introduced into the RFB when needed. The most appealing features of this technology are: scalability and flexibility, independent sizing of power and energy, high round-trip efficiency, high depth of discharge (DOD), long durability and fast responsiveness12. Such features allow for wide ranges of operational powers and discharge periods (Figure 2.2), making them ideal for assisting electricity generation from renewable sources. Redox flow batteries are suitable for energy storage applications with power ratings from 10’s of kW to 10’s of MW and storage durations of 2 to 10 hours. 2.5 Evolution of Redox flow batteries Since the 70s new systems for electrochemical energy storage have been researched due to a great interest by NASA. For some of the systems such as redox flow batteries, development has now reached the commercial stage. Redox flow battery differs from the usual storage system in the energy-active compounds are not stored within the battery container, but separately in a liquid reservoir. The system is shockingly simple. It consists of two tanks, each containing an active species in different oxidation states. Each fluid passes in a half-cell, divided by a membrane, and is returned to the reservoir. In the half-cell there is electrochemical 17PDF Image | Redox Flow Batteries Vanadium to Earth Quinones
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Salgenx Redox Flow Battery Technology: Salt water flow battery technology with low cost and great energy density that can be used for power storage and thermal storage. Let us de-risk your production using our license. Our aqueous flow battery is less cost than Tesla Megapack and available faster. Redox flow battery. No membrane needed like with Vanadium, or Bromine. Salgenx flow battery
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