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Flow battery development

Technology

Originally tested by NASA in the 1960s, flow battery technology has evolved to meet the growing demand for large-scale energy storage. As solar and wind power capacity expands, the need for efficient, long-duration storage solutions becomes increasingly critical in achieving a full transition away from fossil fuels.

The technology of Redox Flow Battery operates on a shared fundamental principle but utilizes different electroactive materials depending on their design. After extensive evaluation of various chemistries, hydrogen and bromine emerged as the optimal choice. This selection was driven by three key factors: 

  • prioritizing environmental sustainability,

  • ensuring the lowest possible cost per megawatt-hour,

  • enabling high power density [W/m2] as well as a high energy density [kWh/m3].

Hydrogen and bromine are not only cost-effective electroactive materials but also abundantly available worldwide, making them an ideal foundation for a truly scalable and eco-friendly energy storage solution. 

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