The GREENCAP project is making significant strides toward the industrial realization of next-generation, sustainable, CRM-free supercapacitors. Two recent results highlight the consortium’s coordinated efforts in scaling up production, standardizing quality, and building a robust European supply chain for key supercapacitor components — from advanced 2D materials to high-performance ionic liquid-based electrolytes.
Industrial Upscaling of Materials and Components
Multiple partners across the GREENCAP consortium have successfully upscaled the production of essential materials, achieving critical project targets:
- BeDimensional (BeD) scaled up the production of few-layer graphene to over 3 t/year, bringing production costs below 1000 €/kg, and initiated the REACH certification process. A quality control protocol was also developed, aligned with the ISO/TS 21356-1 graphene standard.
- University of Cambridge (UCAM) reached a production capacity of over 1 t/year for FLG using high-pressure homogenization.
- Skeleton Materials GmbH (SM) achieved a production rate exceeding 10⁵ kg/year for Curved Graphene, their proprietary electrode material.
- Carbon Ukraine (CU), in collaboration with Trinity College Dublin (TCD) and TU Dresden (TUD), designed and began upscaling a molten salt-based, HF-free etching system for MXene production, now reaching 1 kg/day.
- Solvionic (SOLV) developed and upscaled the production of novel ionic liquid (IL)-based electrolytes, including Pyr13BF4 and Pyr11BF4, with projected costs falling below 100 €/kg, supported by new pilot and industrial production facilities.
🧪 Quality Standardization and Slurry Formulation
The consortium also achieved significant milestones in material formulation and quality assurance:
- A quality control protocol for few-layer graphene was defined in alignment with international ISO standards.
- A robust electrode slurry formulation based on Curved Graphene and Na-CMC was optimized and upscaled by SM, BeD, and TUD.
- Standardization protocols for both electrode materials and electrolytes were introduced to ensure reproducibility and industrial scalability.
Read full report here.
🔗 Building a European Supply Chain
In parallel, groundwork was laid by industrial partners — BeDimensional, Solvionic, Skeleton Technologies, Skeleton Materials, and Carbon Ukraine — in establishing a comprehensive manufacturing and supply chain to support GREENCAP’s commercialization roadmap, ensuring materials are produced locally, sustainably, and at scale. This includes:
- The creation of a supply chain ecosystem for 2D materials and ILs tailored for supercapacitor applications.
- Integration of material management practices and standardization protocols to improve efficiency and traceability across the value chain.
- A coordinated effort, led by Skeleton Technologies, to align material development with scalable supercapacitor manufacturing and future market deployment.
Read full report here.
These achievements bring GREENCAP closer to delivering supercapacitors that charge faster, last longer, and are better for the planet—without relying on rare or toxic materials.
