Siemens Aktiengesellschaft

Harald Schmidt

Walter Gumbrecht

Wolfram Wersing

Harald Landes

Markus Klöpzig

Gerhard Hofer

Wilhelm Kleinlein

Belinda Bruckner

Klaudia Hradil

Ruth M Anner

Manfred Schn Oller

Christoph N Olscher

Ellen Ivers-Tiffee

A high temperature fuel cell and a method for producing the same include at least one interconnecting conducting plate which is associated with at least one electrode. A contact layer is disposed between the interconnecting conducting plate and the electrode. The contact layer is produced from an oxide mixed crystal powder which has a spinel structure and also contains, in addition to chromium, a divalent element selected from the group Ti, V, Mn, Fe, Co and Cu. The contact layer has high thermodynamic stability in addition to sufficient electrical conductivity. A high temperature fuel cell stack includes a number of the high temperature fuel cells.

High temperature fuel cell, high temperature fuel cell stack and method

High-temperature fuel cell with improved solid-electrolyte/electrode

A method for producing a superconducting layer of YBa.sub.2 CU.sub.3 O.sub.7 on a sapphire substrate utilizes the steps of epitaxially growing an intermediate layer that at least contains a yttrium-stabilized zirconium oxide layer directly on the substrate, and then epitaxially growing a superconducting layer on the intermediate layer. In one embodiment, the step of growing the intermediate layer grows two sub-layers, with the first sub-layer being a yttrium-stabilized zirconium oxide layer and a second sub-layer being a yttrium oxide layer applied onto the first sub-layer.

Method for producing a superconductor layer of YBa.sub.2 Cu.sub.3

Growing community of inventors

Munich, Germany

Harald Schmidt