Hochtemperatur-Festelektrolyt-Brennstoffzelle umfassend einen Verbund aus nanoporoesen Duennschichtelektroden und einem strukturiertem Elektrolyt

Abstract

WO2003092089 A UPAB: 20031203 NOVELTY - High temperature, solid electrolyte fuel cell with an electrolyte layer between 2 electrode layers is obtained by (i) applying electrolyte particles in a screen printing paste to an unsintered electrolyte and sintering the resultant structure; and (ii) depositing a nanoporous electrode thin film on this structure by sol-gel or MOD (metal organic deposition) process and heat treating the structure. USE - The products are high-temperature, solid electrolyte fuel cells (claimed). ADVANTAGE - These high temperature fuel cells have higher long-term stability, higher current density and lower polarization resistance than usual. They also have a higher specific capacity for given area at the same degree of efficiency and can be produced cost-effectively, as costly and chemically pure materials need be used only on the electrochemically active areas of the boundaries. The structurized electrolyte surface has better adhesion to the electrode layer, which reduces degradation resulting from delamination