HIGH-TEMPERATURE FUEL CELL AND HIGH-TEMPERATURE FUEL CELL STACK WITH INTERCONNECTING CONDUCTING PLATES PROVIDED WITH A CHROMIUM SPINEL CONTACT LAYER

摘要

The proposed high-temperature fuel cell (2) has at least one interconnecting conducting plate (4, 16; 20, 22, 24) to which at least one electrode (8, 12) is allocated, a contact layer (6, 14) being provided between the interconnecting conducting plate (4, 16; 20, 22, 24) and electrode (8, 12). The contact layer (6, 14) is formed from a spinel-structured oxide mixed crystal powder which in addition to chromium contains another divalent element selected from the group containing Ti, V, Mn, Fe, Co and Cu. A contact layer (6, 14) of this composition has high thermodynamic stability as well as adequate electrical conductivity.