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Salgenx has developed a scalable redox flow battery with two separate electrolyte tanks, one of which is salt water. The new device lacks membranes, which promises great gains at the levelized cost of storage.
The American technology company Salgenx has presented a scalable saltwater flow battery for applications in renewable energy, telecommunication towers, oil well pumps, agricultural irrigation pumps and lighting or greenhouse irrigation. The batteries are suitable for autonomous storage or with solar or wind energy.
“It is well suited for solar energy storage, with the added benefit of solar thermal storage in the saltwater electrolytic tank,” said CEO Gregory Giese.
According to the manufacturer, the new battery has an energy density of 125.7 Wh/L. It requires two large tanks filled with fluid electrolytes, one of which is salt water and the other of which is a proprietary electrolyte. The fluids circulate through the electrodes, which regulate the input and output of electricity from the battery.
The solution can be expanded by adding more electrodes and electrolyte reservoirs. Salgenx also offers the solution in 250 kW, 3 MWh, 6 MWh, 12 MWh and 18 MWh configurations. The flow battery does not have a membrane, unlike most redox flow batteries.
“The absence of a membrane saves huge up-front purchase, maintenance and consumable costs,” says Salgenx. |
