ESS Tech Inc. announced it has acquired the intellectual property and assets of VoltStorage GMbH, a German iron-salt battery technology company. VoltStorage recently wound down operations after a decade in business.
This acquisition adds VoltStorage’s portfolio of patents and technical development work to ESS’s existing intellectual property base. Through the transaction, ESS also gains access to skilled personnel with deep electrochemistry, materials science and technology development background. ESS believes the combined capabilities will accelerate strategic growth, expand market reach, and position the company at the forefront of long-duration energy storage solutions.
“This acquisition accelerates our mission to provide clean, reliable, and affordable energy storage solutions worldwide,” said Drew Buckley, CEO of ESS. “By combining decades of iron flow battery expertise across two companies at ESS, we are accelerating innovation to create the most advanced iron-salt battery platform for long-duration storage.”
ESS produces long-duration energy storage systems at its manufacturing site in Oregon. If not for an unexpected financial boost, ESS would have been forced to close its operations last summer. Things have improved enough to acquire IP and boost international deployment options.
