| 摘要 |
The battery with planar high temperature fuel cells comprises a stack-shaped, alternating arrangement of electrochemically active elements and interconnectors. The interconnectors are formed as air heat exchangers, each of which has a basic body. The thermal expansion of the interconnector is largely determined by the basic body. Each basic body separates an air side from a gas side. A structured layer is arranged on both sides of the basic body in each case: namely a structured layer for electrical conduction and heat transport as well as for a transport of air or combustion gas respectively along the electrochemically active elements. The thermal expansion of the basic body corresponds substantially to that of the electrochemically active elements. Each basic body is formed as an air heat exchanger and consists of a material on whose surface a permanent oxide layer forms under the operating conditions of the battery and in the presence of oxygen. On the air side of the basic body, the structured layer is bonded to the basic body in such a manner that the basic body is protected against oxide formation at the connection points.
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