Skeleton Technologies

Skeleton Technologies develops and manufactures high-power energy storage technology for transportation, electrical grids, heavy industry and AI data centers. Founded in Tartu, Estonia, in 2009, the company combines materials research, cell manufacturing and integrated power systems engineering. Its product portfolio spans supercapacitors, hybrid SuperBatteries and complete energy storage systems.

The company's technology centers on Curved Graphene, a proprietary carbon material used in its energy storage cells. Supercapacitors provide rapid charging and discharging for applications that require short bursts of substantial power. Skeleton has expanded this foundation with SuperBattery technology, positioned between conventional supercapacitors and lithium-ion batteries, and with integrated equipment for managing demanding electrical loads.

Power systems and applications

For AI infrastructure, Skeleton develops systems that address transient GPU power swings and short-duration backup requirements. Its portfolio includes GrapheneGPU for peak-load management, GrapheneUPS for uninterruptible power supplies and GrapheneBBU for 800 VDC battery backup. These products extend the company's work from individual cells and modules into broader data center power architecture.

In transportation, its technology supports kinetic energy recovery, vehicle electrical stabilization and high-power propulsion applications. Markets include commercial vehicles, urban rail, buses and motorsport. Grid applications include frequency regulation, stability and renewable energy integration, while industrial uses encompass port equipment, mining machinery and maritime electrification. Aerospace and defense applications require specialized energy storage and power systems engineering.

Development and manufacturing

Skeleton's capabilities cover energy storage design, hardware integration, automated manufacturing and custom development. Its operational presence spans Estonia, Germany and Finland, connecting corporate engineering and module development with cell production and research into high-power electronics.

The company initially developed commercial opportunities in space-qualified energy storage before broadening into transport, utilities and industrial markets. More recently, it has expanded its product scope toward integrated power architectures for AI infrastructure, building on its experience in rapidly delivering and absorbing electrical energy.