300 GW of solar and 200 GW of wind energy are installed each year worldwide. However, these renewable sources are intermittent. Thus, the demand for stationary energy storage is skyrocketing.
Traditional battery technologies face growing challenges in meeting this demand sustainably, reliably, and at low cost. Conventional batteries like lithium-ion have limited scalability for stationary applications and present safety risks and environmental concerns due to the scarcity of the raw material used and potential fire hazards.
Iron-flow batteries address these challenges by combining the inherent advantages of redox flow technology with the cost-efficiency of iron. Unlike solid-state batteries, flow batteries separate energy storage from power delivery, allowing for independent scalability, longer lifetimes, and reduced environmental impact.
Additionally, by utilizing iron – a widely abundant and low-cost material – these batteries significantly lower storage costs, achieving up to three times lower costs per megawatt-hour (MWh) compared to conventional systems.
Uses abundant, low-cost iron for a more economical solution
Long lifespan with minimal degradation and recyclable materials
Non-flammable, water-based electrolytes eliminate fire risks
Independent adjustment of power and capacity for tailored, cost-effective scaling
An iron-based redox flow technology utilizes metal complexes in liquid electrolytes to store energy.
Unlike conventional batteries, which confine both power and energy within a single enclosed structure, this technology separates these elements.
The system is comprised of electrolyte tanks, which store the liquid medium containing the energy, and stacks, where the actual energy conversion occurs through a redox reaction driven by iron-based complexes.
This design enables flexible, independent scaling of power delivered and energy stored: to increase the energy stored, only the electrolyte tank volume needs to be expanded, while power adjustments are made by modifying the stack configuration. This unique feature allows for cost-effective scaling, essential for large-scale applications.
Developed using an advanced metal complex and membrane, Iron-Flow Batteries is based at the Paris Flow Tech platform – a premier hub for innovation in continuous flow chemistry. This state-of-the-art facility fosters the development of breakthrough technologies like ours through cutting-edge research and collaborative expertise.
Storage for solar and wind energy to ensure continuous availability
Grid stabilization and peak load management
Reliable energy supply for critical facilities
Optimizing energy consumption and reducing costs
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