CARBONEX-S - Sustainable Nanocellulose-Carbon Hybrid Electrodes for Advanced Flexible Supercapacitors
| Reference number | |
| Coordinator | Kungliga Tekniska Högskolan - Department of Fibre & Polymer Techbology |
| Funding from Vinnova | SEK 3 300 000 |
| Project duration | May 2026 - May 2028 |
| Status | Ongoing |
| Venture | M-ERA.NET 3 |
Purpose and goal
CARBONEX-S aims to develop sustainable and flexible supercapacitors based on nanocellulose, bio-based activated carbon, and boron-doped carbon nanowalls. The objective is to understand how structure, porosity, and interfaces govern ion transport, charge storage, and electrochemical stability in water-based and metal-free energy-storage systems. The knowledge and technologies developed can be used to create scalable and circular material platforms for next-generation flexible energy technologies.
Expected effects and result
CARBONEX-S is expected to deliver flexible supercapacitor prototypes based on nanocellulose and bio-based carbon materials, including metal-free current collectors and water-based electrolytes. The results include new methods for fabricating and characterizing sustainable electrodes and separators, as well as a detailed understanding of how material nanostructure and interfaces influence capacitance, charge rate, stability, and lifetime in energy-storage systems.
Planned approach and implementation
CARBONEX-S will be carried out through the development and optimization of bio-based electrode materials, separators, electrolytes, and metal-free current collectors for flexible supercapacitors. The materials will be fabricated and characterized using advanced electrochemical and structural methods to relate nanostructure and interfaces to performance and stability. The materials will then be integrated into prototypes evaluated for capacitance, lifetime, flexibility, and scalability.