Skeleton opens SuperBattery factory in Finland powered by Niobium technology
Skeleton Technologies has officially opened its SuperBattery factory in Varkaus, Finland, following a total investment of €50 million.
The facility is the first in Europe dedicated to manufacturing high-power batteries for AI data centers and the first globally to industrialize backup power systems for mission-critical computing and emerging sectors such as nuclear fusion
Taavi Madiberk, CEO and co-founder of Skeleton Technologies, highlighted the strategic intent behind the investment:
“AI, mobility, and the grid of the future all require extreme power, reliability and sustainability.
Batteries are increasingly central to AI model training and mission-critical operations. The Varkaus factory is a cornerstone for sovereign European AI infrastructure and reflects our commitment to advancing performance responsibly and independently.”
The factory occupies premises previously operated by European Batteries Oy, the first company to produce LFP batteries in Europe. Re-establishing production at this location contributes to restoring regional industrial capabilities and reinforces Finland’s battery value chain.
Lassi Noponen, Director General of Business Finland, noted the project’s positive impact on Eastern Finland’s industrial and economic development.
SuperBattery cells produced at Varkaus use NBXCELER™ Niobium oxides, developed in partnership with CBMM.
Niobium-bearing materials contribute to improved safety, charge performance and cycle life, properties relevant to AI workloads and industrial operations that require fast charging, high cycle counts and reliable performance.
• Annual capacity: Equivalent to 1 GW of battery power.
• Local workforce: >65 today; >200 projected in Varkaus by 2029.
• Applications: AI data centers, mission-critical computing, grid stability, mobility, defense.
The opening of the Varkaus SuperBattery factory marks an important step in expanding Europe’s high-power energy ecosystem. The project reinforces how Niobium-bearing materials are enabling next-generation solutions for AI and mission-critical applications.
To learn more about Skeleton’s Niobium-based backup systems, see the GrapheneBBU solution showcased at the OCP Global Summit.