Skeleton Technologies has officially opened its SuperBattery factory in Varkaus, Finland, following a €50 million ($58m) investment.
The site is Europe’s first dedicated to high-power batteries for AI data centres, and the first globally to industrialise backup systems for mission-critical computing and emerging sectors such as nuclear fusion.
The SuperBattery factory marks a strategic milestone for European energy resilience and technological sovereignty. By localising advanced battery production, Skeleton aims to strengthen manufacturing independence, support AI infrastructure, and reduce reliance on global supply chains.
“AI, mobility, and the grid of the future all require extreme power, reliability, and sustainability,” said Taavi Madiberk, CEO and co-founder of Skeleton Technologies. “Our Varkaus factory is a cornerstone for sovereign European AI infrastructure.”
The site was previously operated by European Batteries, the first company to produce LFP batteries in Europe. Its revival signals renewed momentum for Finland’s battery ecosystem.
Powered by CBMM’s NBXCELER™ niobium oxides, Skeleton’s SuperBattery technology offers enhanced safety, faster charging, and longer lifetime. “Niobium plays a key role in shaping a more sustainable future,” said Ricardo Lima, CEO of CBMM.
Skeleton currently employs over 65 people in Finland, with plans to expand to 200 in Varkaus by 2029. The SuperBattery factory will deliver one gigawatt of battery power for AI, mobility, grid stability and defence.
