Success in developing groundbreaking electrolyte materials

One step forward for commercialization of SOFC

2010.11.18

National Institute for Materials Science

Fuel Cell Nano-Materials Group, International Center for Materials Nanoarchitectonics has successfully developed two types of novel proton conducting oxide electrolytes for solid oxide fuel cells (SOFCs).

Abstract

Fuel Cell Nano-Materials Group (Leader: Enrico TRAVERSA), International Center for Materials Nanoarchitectonics (Director: Masakazu AONO) has successfully developed two types of novel proton conducting oxide electrolytes for solid oxide fuel cells (SOFCs). By applying these electrolytes, the commercialization of SOFCs operating in the intermediate temperature range, 500 to 650°C, has come into sight.
"Upper left: Schematic diagram of the procedure for preparing an anode supported BZY electrolyte film.Lower left: Elemental mapping, confirming the In3+ ions evaporation and Y3+ ions migration from the anode to the electrolyte layer, to occupy the In3+ sites.Right: Fuel cell performance of electrode-supported cells using BZY electrolytes prepared by different methods and measured at 600oC in the literature reports (spin-coating cell was tested at 800oC) as well as in the present study, indicating that the BZY cell in the present study shows the largest power density" Image

Upper left: Schematic diagram of the procedure for preparing an anode supported BZY electrolyte film.Lower left: Elemental mapping, confirming the In3+ ions evaporation and Y3+ ions migration from the anode to the electrolyte layer, to occupy the In3+ sites.Right: Fuel cell performance of electrode-supported cells using BZY electrolytes prepared by different methods and measured at 600oC in the literature reports (spin-coating cell was tested at 800oC) as well as in the present study, indicating that the BZY cell in the present study shows the largest power density