| Abstract Scope |
Protonic ceramic electrochemical cells (PCECs) can operate at low temperatures (300-600oC), significantly improving the durability, materials cost, and efficiency. In addition to discovering new materials for improving performance, manufacturing the cells and stacks with the desired microstructures should also be paid more attention. In this work, the highly compacted multilayer protonic ceramic fuel cell and electrolysis cell stacks were designed to significantly improve volumetric power density and substantially decrease the device size, which will be fabricated by a novel laser 3D printing technique. The crack-free layers of dense protonic ceramic electrolyte, dense interconnect, porous hydrogen electrode and porous oxygen electrode were 3D printed and laser-sintered, which showed desired microstructures and promising electrochemical properties. The single cells comprised of two porous electrodes and one dense electrolyte were manufactured through laser 3D printing. The single cells demonstrated promising fuel cell and water electrolysis performance at 600oC. |