Carbonized Chicken Eggshell Membranes with 3D Architectures as High‐Performance Electrode Materials for Supercapacitors (Adv. Energy Mater. 4/2012)

Abstract

Supercapacitors are a class of energy-storage device able to work at much higher current densities than batteries to meet surge energy requirements. On page 431, Z. Li, L. Zhang, and co-workers carbonize a daily waste, eggshell membrane, and use it as a high-performance supercapacitor. The 3D macroporous structure composed of interwoven carbon fibers facilitates fast electron and electrolyte transfer. The micropores and functionalities (N and O) on the fibers endow the carbonized membrane with a high capacitance of up to 297 F g−1.