Progress in sustainable supercapacitor development!
We are excited to share that the GREENCAP project has hit a major milestone in developing sustainable supercapacitors. By using graphene-based materials (GRMs), electrodes with a sheet resistance of just 37 Ω/sq have been created, which is significantly better than traditional activated carbon (AC) electrodes that measure 352 Ω/sq. This exceeds our goal of achieving under 100 Ω/sq and marks towards creating sustainable, high-performance supercapacitors based on graphene and other 2D materials.
While the developed GRM has a specific surface area (SSA) of 1374 m²/g, below the original target of 2000 m²/g, its graphitic structure improves the capacitance compared to AC which has a slightly higher SSA (1694 m²/g). The enhanced capacitance compensates for the lower surface area, demonstrating an optimized trade-off between SSA and electrical conductivity for supercapacitor applications. Importantly, while we can produce carbon-based materials with SSAs exceeding 2000 m²/g, their defective structures negatively impact conductivity and capacitance. This makes the developed GRM a more promising choice for performance-driven designs.
This milestone shows GREENCAP’s progress toward creating high-performance, environmentally friendly energy storage solutions. Stay tuned for more updates!
