Curved Graphene - innovation in energy storage

The power of
Curved Graphene

Discover Skeleton Materials' revolutionary approach to cutting-edge material technology.

Skeleton Technologies Group encompasses the entire value chain for energy storage, from raw materials to storage systems. Based in Bitterfeld-Wolfen, Germany, our fully-owned subsidiary, Skeleton Materials (formerly Black Magic GmbH), specializes in the development and production of Curved Graphene. This novel synthetic carbide-based carbon material significantly enhances the energy density of supercapacitors. 

The battery industry is actively seeking sustainable substitutes for critical raw materials like nickel and cobalt to ensure Europe’s security of supply. Curved Graphene delivers unparalleled performance levels without the need for toxic or rare metals. It enhances electrode functionality using locally sourced materials which are widely accessible and abundant in Europe. This significantly reduces our dependence on non-European metals crucial for decarbonizing the continent.

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Curved Graphene supercapacitor

Material Innovation

Material development is the cornerstone of our strategy. Unlike other key players in the battery industry who primarily compete in engineering with the same raw materials, Skeleton Technologies has adopted the strategy of vertical integration. This approach encompasses the entire value chain, from the microporous carbon material to cells, modules, and systems, including advanced control algorithms and software.

Curved Graphene, a recognized key innovation, helps industries cut fossil fuel reliance and advance in net zero journey. Our scientists Jaan Leis, Mati Arulepp, and Anti Perkson were honored with the European Inventor Award 2022 by the European Patent Office for their groundbreaking work in optimizing Curved Graphene, achieving exceptional power and energy density in supercapacitors. Additionally, Skeleton Materials received accolades at the German Hugo Junkers Awards for Research and Innovation in 2019.

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Curved Graphene
Unique technology & product roadmap with Curved Graphene, protected by more than 30 patent families
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Grid and industrial installations
With over 100 MWs in grid and industrial installations and more than 10,000 systems & modules deployed worldwide
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Curved Graphene microscope


From a technical perspective, Curved Graphene allows for customization in the ratio of micro- to mesopores based on specific application requirements. In supercapacitors, where energy storage predominantly occurs in micropores, a substantial micropore surface area is essential. While optimized activated carbons typically achieve a micropore ratio between 0.5 and 0.6, Curved Graphene can reach up to 0.95, maximizing capacitive energy storage.

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The manufacturing process of Curved Graphene involves Silicon Carbide (SiC) and Chlorine gas (Cl2). These materials react at high temperatures in an exothermic process, transforming the carbon in the carbide into Curved Graphene, with Silicon Tetrachloride (SiCl4) as a high-purity byproduct.

The production process of Curved Graphene is protected by several patent families worldwide. In synthesizing Curved Graphene, we utilize our patented fluidized bed reactor (FBR) technology. This advanced technology supersedes traditional rotary kiln reactors, which limit gas and solid interaction due to mechanical constraints. In contrast, our FBR technology fluidizes a bed of particles with a gas stream, creating a liquid-like movement of solids and allowing for more efficient reactions. 

We aim to expand Curved Graphene production in 2025 to broaden the material’s availability and harness its full potential. 


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Curved Graphene production
Saving energy has never been more important

Saving energy has
never been more important

"There are structural changes taking place in the largest CO2 emission sources such as power generation, transportation, and industry. Energy storage is a key element in drastically reducing emissions in these sectors, and innovation in energy storage plays a crucial role in enabling the global economy to achieve crucial climate goals."

Taavi Madiberk,
CEO of Skeleton

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