Metal nitric oxides redox flow batteries

The Need

Redox flow batteries (RFBs) offer a promising solution for storing intermittent renewable energy in the electrical grid. However, their reliance on finite and unsustainable transition metals, such as vanadium, poses significant sustainability challenges. The rising costs and environmental impacts of mining these metals threaten the widespread adoption of RFB technology. There's a pressing need for more sustainable energy storage solutions that utilize abundant and environmentally friendly resources.

The Technology

Our new battery technology is based on abundant nitrogen oxides (NOx), providing a sustainable alternative to conventional RFBs. By utilizing nitrogen sources like ammonia and diammonium phosphate, we break away from the reliance on finite metal resources, such as vanadium. Our metal nitric oxides battery offers a maximum specific energy twenty times higher than state-of-the-art vanadium RFBs and comparable to Li-ion batteries, providing a high-energy-density solution for renewable energy storage.

Commercial Applications:

  • Grid-scale energy storage for renewable energy integration
  • Backup power systems for commercial and industrial facilities
  • Off-grid power solutions for remote locations
  • Electric vehicle charging infrastructure
  • Residential energy storage systems


  • Sustainability: Utilizes abundant nitrogen resources, reducing reliance on finite transition metals and minimizing environmental impact.
  • Cost-effectiveness: Nitrogen sources have stable and low prices, making the technology economically viable and scalable.
  • High energy density: Offers a maximum specific energy twenty times higher than vanadium RFBs, ensuring efficient energy storage.
  • Grid scalability: Allows for simple scaling of energy storage capacity, making it suitable for various grid applications.
  • Versatility: Can be applied across multiple sectors, from grid-scale energy storage to portable power solutions, enhancing flexibility and adaptability.

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