Startup secures patent for energy storage technology

Australian startup Allegro Energy has been granted a US patent for its micro-emulsion electrolyte technology, further positioning it as a leader in long-duration energy storage.

This follows previous patent successes in Europe and several other key markets, highlighting the international significance of the startup’s approach.

Allegro’s modular micro-emulsion electrolyte system is said to enable safer, more cost-effective and scalable solutions for applications ranging from grid storage to renewable energy integration.

By overcoming key limitations of traditional aqueous and non-aqueous electrolytes, Allegro’s technology is said to expand the electrochemical stability window, enhancing energy density while maintaining the affordability and safety of water-based systems.

“The US patent reinforces Allegro’s ability to deliver a truly global and transformative solution for long-duration energy storage,” said Dr Thomas Nann, CEO and Co-Founder of Allegro Energy. “With energy storage playing a crucial role in the renewable transition, our micro-emulsion platform ensures scalability and adaptability across a range of battery chemistries, from redox flow to advanced ion batteries.”

The advantage of the company’s micro-emulsion technology is said to be its ability to dissolve a wider range of electrochemically active species, while maintaining stability at high voltages — previously a major barrier to the adoption of aqueous electrolytes in advanced energy storage.

The solution is applicable to multiple battery formats, including lithium-ion, sodium-ion, magnesium-ion and aluminium-ion batteries, as well as supercapacitors and redox flow batteries.

With this latest US patent covering all of Allegro’s intended claims, the startup is said to be positioned to partner with utilities, industrial operators and battery manufacturers worldwide to drive the future of clean energy storage, and rapidly support the drive to 24/7 carbon-free energy.

Image caption: Allegro Energy’s Gigafactory. Image: Supplied.