Made by combining cement, water, ultra-fine carbon black (with nanoscale particles), and electrolytes, electron-conducting carbon concrete (ec 3, pronounced “e-c-cubed”) creates a conductive “nanonetwork” inside concrete that could enable everyday structures like walls . Made by combining cement, water, ultra-fine carbon black (with nanoscale particles), and electrolytes, electron-conducting carbon concrete (ec 3, pronounced “e-c-cubed”) creates a conductive “nanonetwork” inside concrete that could enable everyday structures like walls . Improved carbon-cement supercapacitors could turn the concrete around us into massive energy storage systems. An electron-conducting carbon concrete (ec³)-based arch structure integrates supercapacitor electrodes for dual functionality. The prototype demonstrates both structural load bearing and. Storworks' thermal energy storage (TES) system is designed to provide maximum flexibility for a wide range of applications. The concrete TES can be charged from steam, waste heat, or resistively heated air, depending on application. -based developer Storworks Energy, at the Alabama Power Ernest C. It's perhaps the most ubiquitous man-made material on Earth by weight, but every square foot. Since the new “supercapacitor” concrete would retain its strength, a house with a foundation made of this material could store a day's worth of energy produced by solar panels or windmills, and allow it to be used whenever it's needed. (Courtesy: Franz-Josef Ulm, Admir Masic and Yang-Shao Horn) A.