MIT's Energy-Storing Concrete Delivers 10x Capacitor Density
MIT researchers have developed a supercapacitor concrete that doubles as a structural material by embedding carbon nanostructures and liquid electrolytes, storing energy electrostatically and achieving about ten times the energy density of standard capacitors, though it remains below lithium-ion batteries. Potential uses include stabilizing wind-turbine output, industrial energy storage, and future urban infrastructure, while challenges such as scalability, durability, and the need for auxiliary components must be overcome before large-scale deployment.