Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SCHICHTAUFBAU SOWIE SEINE VERWENDUNG ZUR AUSBILDUNG EINES KERAMISCHEN SCHICHTAUFBAUS ZWISCHEN EINEM INTERKONNEKTOR UND EINER KATHODE EINER HOCHTEMPERATURBRENNSTOFFZELLE
The invention relates to a layer structure which is formed between an interconnect and a cathode of a solid oxide fuel cell and can be used for forming a ceramic layer structure between an interconnect and a cathode. In this respect, the interconnect comprises a metal alloy containing chromium. The object of the present invention is to provide a layer structure between an interconnect and a cathode of a solid oxide fuel cell with which a good protective function (from corrosion and from chromium vaporization), a high electrical conductivity and also a good thermal expansion behavior adapted to the materials of an interconnect and of a cathode can be achieved. The layer structure in the green state is formed by a powdery spinel as well as at least one of the below-named metal oxides CuO, NiO, CoOx and MnOx as a sintering additive and at least one powdery perovskite. In this respect, chromium is not contained in any of these chemical compounds and the portion of spinel contained with the metal oxides as a sintering additive is reduced starting from the side facing the interconnect up to the side facing the cathode and the portion of perovskite is reduced starting from the side facing the cathode in the direction of the side facing the interconnect.
SCHICHTAUFBAU SOWIE SEINE VERWENDUNG ZUR AUSBILDUNG EINES KERAMISCHEN SCHICHTAUFBAUS ZWISCHEN EINEM INTERKONNEKTOR UND EINER KATHODE EINER HOCHTEMPERATURBRENNSTOFFZELLE
The invention relates to a layer structure which is formed between an interconnect and a cathode of a solid oxide fuel cell and can be used for forming a ceramic layer structure between an interconnect and a cathode. In this respect, the interconnect comprises a metal alloy containing chromium. The object of the present invention is to provide a layer structure between an interconnect and a cathode of a solid oxide fuel cell with which a good protective function (from corrosion and from chromium vaporization), a high electrical conductivity and also a good thermal expansion behavior adapted to the materials of an interconnect and of a cathode can be achieved. The layer structure in the green state is formed by a powdery spinel as well as at least one of the below-named metal oxides CuO, NiO, CoOx and MnOx as a sintering additive and at least one powdery perovskite. In this respect, chromium is not contained in any of these chemical compounds and the portion of spinel contained with the metal oxides as a sintering additive is reduced starting from the side facing the interconnect up to the side facing the cathode and the portion of perovskite is reduced starting from the side facing the cathode in the direction of the side facing the interconnect.
SCHICHTAUFBAU SOWIE SEINE VERWENDUNG ZUR AUSBILDUNG EINES KERAMISCHEN SCHICHTAUFBAUS ZWISCHEN EINEM INTERKONNEKTOR UND EINER KATHODE EINER HOCHTEMPERATURBRENNSTOFFZELLE
LAYERED STRUCTURE AND USE THEREOF TO FORM A CERAMIC LAYERED STRUCTURE BETWEEN AN INTERCONNECT AND A CATHODE OF A HIGH-TEMPERATURE FUEL CELL
STRUCTURE À EMPILEMENT ET SON UTILISATION POUR FORMER UNE STRUCTURE À EMPILEMENT EN CERAMIQUE ENTRE UN INTERCONNECTEUR ET UNE CATHODE D'UNE PILE A COMBUSTIBLE HAUTE TEMPERATURE
BRANDNER MARCO (Autor:in) / SCHMID JOHANNES (Autor:in) / VENSKUTONIS ANDREAS (Autor:in) / TROFIMENKO NIKOLAI (Autor:in) / SAUCHUK VIKTAR (Autor:in) / KUSNEZOFF MIHAILS (Autor:in) / LUCKE KARIN (Autor:in) / MICHAELIS ALEXANDER (Autor:in)
27.04.2016
Patent
Elektronische Ressource
Deutsch
IPC:
C23C
Beschichten metallischer Werkstoffe
,
COATING METALLIC MATERIAL
/
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C04B
Kalk
,
LIME
/
H01M
Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie
,
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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