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1. WO1992016029 - DEVICE COMPRISING A PLURALITY OF HIGH-TEMPERATURE FUEL CELLS FOR CONVERTING THE CHEMICAL ENERGY OF A FUEL TO ELECTRICAL ENERGY

Publication Number WO/1992/016029
Publication Date 17.09.1992
International Application No. PCT/EP1992/000384
International Filing Date 24.02.1992
IPC
H01M 8/021 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0204Non-porous and characterised by the material
0206Metals or alloys
0208Alloys
021Alloys based on iron
H01M 8/0236 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
023Porous and characterised by the material
0236Glass; Ceramics; Cermets
H01M 8/0245 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
023Porous and characterised by the material
0241Composites
0245in the form of layered or coated products
H01M 8/0247 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0247characterised by the form
H01M 8/0612 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
06Combination of fuel cells with means for production of reactants or for treatment of residues
0606with means for production of gaseous reactants
0612from carbon-containing material
H01M 8/1213 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
12operating at high temperature, e.g. with stabilised ZrO2 electrolyte
1213characterised by the electrode/electrolyte combination or the supporting material
CPC
H01M 2008/1293
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
12operating at high temperature, e.g. with stabilised ZrO2 electrolyte
1293Fuel cells with solid oxide electrolytes
H01M 2300/0074
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2300Electrolytes
0017Non-aqueous electrolytes
0065Solid electrolytes
0068inorganic
0071Oxides
0074Ion conductive at high temperature
H01M 8/021
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0204Non-porous and characterised by the material
0206Metals or alloys
0208Alloys
021Alloys based on iron
H01M 8/0236
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
023Porous and characterised by the material
0236Glass; Ceramics; Cermets
H01M 8/0245
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
023Porous and characterised by the material
0241Composites
0245in the form of layered or coated products
H01M 8/0247
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0247characterised by the form
Applicants
  • BOSSEL, Ulf [CH]/[CH]
Inventors
  • BOSSEL, Ulf
Agents
  • MEINKE, Julius
Priority Data
654/91-605.03.1991CH
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VORRICHTUNG ZUR UMWANDLUNG CHEMISCHER ENERGIE EINES BRENNSTOFFES IN ELEKTRISCHE ENERGIE MIT EINER VIELZAHL VON HOCHTEMPERATUR-BRENNSTOFFZELLEN
(EN) DEVICE COMPRISING A PLURALITY OF HIGH-TEMPERATURE FUEL CELLS FOR CONVERTING THE CHEMICAL ENERGY OF A FUEL TO ELECTRICAL ENERGY
(FR) DISPOSITIF POUR LA TRANSFORMATION D'ENERGIE CHIMIQUE D'UN COMBUSTIBLE EN ENERGIE ELECTRIQUE AU MOYEN D'UN ENSEMBLE DE CELLULES COMBUSTIBLES A HAUTE TEMPERATURE
Abstract
(DE)
Mit einer Vorrichtung zur Umwandlung chemischer Energie eines Brennstoffes in elektrische Energie mit einer Vielzahl parallel aneinander geschichteter Hochtemperaturbrennstoffzellen soll insbesondere eine einwandfreie gleichmässige Stromübertragung von einer Brennstoffzelle auf eine benachbarte Brennstoffzelle unter Vermeidung von Querströmen in den Elektroden gewährleistet werden, wobei die Führung der gasförmigen Medien zu und von den Elektroden so gestaltet werden kann, daß eine möglichst gleichmässige Betriebstemperatur über die gesamte Elektrodenoberfläche erreichbar ist. Dies wird dadurch erreicht, daß die Sauerstoffelektrode (2) aus mit SrO-dotierten Mn-Oxiden mit einer Cr-Oberflächenschicht (4) und die Brennstoffelektrode (3) aus Ni/ZrO2-Cermet mit einer Ni-Oberflächenschicht (5) besteht, daß die Trennplatte (6) als Hohlkörper zur Führung und Verteilung sowie Sammlung gasförmiger Medien ausgebildet ist und daß zwischen Trennplatte (6) und den Stromkollektoren (12, 13) ein hochelastisches, als Hochtemperaturfeder wirkendes, Bauelement in Form einer gasdurchlässigen Zwischenlage (11) vorgesehen ist.
(EN)
In a device with a plurality of high-temperature fuel cells connected in parallel for converting the chemical energy of a fuel to electrical energy, perfectly uniform transfer of current from one fuel cell to an adjacent fuel cell must be ensured while preventing cross-currents in the electrodes. The gaseous media are conveyed to and from the electrodes so as to maintain the operating temperature attained as uniform as possible over the entire surface of the electrodes. To this end, the oxygen electrode (2) consists of SrO-doped Mn oxides with a Cr surface coating (4) and the fuel electrode (3) consists of Ni/ZrO2 cermet with an Ni surface coating (5); the separating plate (6) is a hollow body which conducts, distributes and collects gaseous media; and a highly elastic structural component in the form of a gas-permeable intermediate layer (11) which acts as a high-temperature spring is located between the separating plate (6) and the current collectors (12, 13).
(FR)
Lorsqu'on utilise un dispositif pour la transformation d'énergie chimique d'un combustible en énergie électrique au moyen d'un ensemble de cellules combustibles à haute température agencées en couches parallèles, il est indispensable de garantir notamment une transmission de flux absolument uniforme d'une cellule combustible à une cellule voisine, tout en évitant des courants transversauux dans les électrodes, le guidage des milieux gazeux vers les électrodes et à partir de celles-ci pouvant être réalisé de manière à obtenir une température de service aussi uniforme que possible sur la totalité de la surface des électrodes. Ce but est atteint grâce au fait que l'électrode à oxygène (2) est formée d'oxydes de Mn dopés au SrO avec une couche superficielle de Cr (4), et l'électrode à combustible (3) est formée de Ni/ZrO2-cermet avec une couche superficielle de Ni (5), et que la plaque séparatrice (6) est réalisée sous forme d'un corps creux pour le guidage et la répartition ainsi que pour la collecte des milieux gazeux, et qu'il est prévu entre la plaque séparatrice (6) et les collecteurs de courant (12, 13) un élément structural sous forme d'une couche intermédiaire perméable aux gaz (11), d'élasticité élevée et agissant à la manière d'un ressort à haute température.
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