High temperature fuel cell with an electrolyte thin film

摘要

The cell has an electrochemically active element formed of a planar multilayer structure (1). The electrolyte (10) and the thin-film cathode (11) on its air side are deposited on a porous gas-permeable support having a sintered cermet body with a highly porous foundation layer (30) and a microporous covering (20) of anode material. The pores (32) of the foundation are open to one another and have an average diameter in the region of at least 300 mu m. The pores (21) of the covering have a diameter not much more than 1-3 mu m.