California-based Lyten, a lithium-sulfur battery specialist, has acquired Northvolt’s Dwa energy storage system (ESS) operations in Gdansk, Poland, the company said July 1.

The 25,000-sq-m battery energy storage system manufacturing and R&D facility is the largest facility of its kind in Europe.

Financial terms of the transaction, expected to close in third-quarter 2025, were not disclosed.

“Northvolt’s BESS manufacturing operations are truly world class and are a seamless strategic fit for Lyten as we launch an exciting new chapter for our company,” said Lyten CEO and Cofouder Dan Cook. “We plan to immediately restart operations in Poland and deliver on existing and new customer orders.”

The deal was announced about three months after Northvolt filed for bankruptcy in Sweden due to challenges that included “rising capital costs, geopolitical instability, subsequent supply chain disruptions, and shifts in market demand,” Northvolt said in March.

Lyten plans to combine its “Silicon Valley technology with Polish engineering and operations talent to export next generation energy storage technology to customers worldwide,” Cook said.

The company describes its lithium-sulfur batteries, which can be used in drones and electric vehicles, as being ultra-lightweight with a high energy density and a broad operating temperature range.

The Dwa ESS facility, which went online in 2023, includes equipment to ramp up to 6 gigawatt hours (GWh) of energy storage manufacturing capacity with potential to expand to more than 10 GWh, Lyten said. It has contracted orders extending into 2026.