
Chinese Team Builds 3D-Printed Cement Supercapacitor That Stores Energy and Bears Loads
Researchers in China 3D-printed comb-shaped cement electrodes into a device that stores charge and reaches 23 MPa compressive strength. We explain how it reshapes ion pathways, what the area-based figures actually measure, how it differs from MIT's work, and why capacitance falls to about 8% at -18°C.








