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1. (CA2291195) DOUBLE LAYER CATHODE FOR MOLTEN CARBONATE FUEL CELLS AND METHOD FOR PRODUCING THE SAME

Office : Canada
Application Number: 2291195 Application Date: 19.05.1998
Publication Number: 2291195 Publication Date: 26.11.1998
Publication Kind : A1
Prior PCT appl.: Application Number:EP1998002929 ; Publication Number: Click to see the data
IPC:
H01M 4/88
H01M 4/86
H01M 8/14
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
86
Inert electrodes with catalytic activity, e.g. for fuel cells
88
Processes of manufacture
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
86
Inert electrodes with catalytic activity, e.g. for fuel cells
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8
Fuel cells; Manufacture thereof
14
Fuel cells with fused electrolytes
CPC:
H01M 4/8842
H01M 4/8621
H01M 4/8885
H01M 4/9016
H01M 8/142
H01M 2004/8689
H01M 2008/147
H01M 2300/0051
Y02E 60/526
Y02P 70/56
Applicants: MTU MOTOREN- UND TURBINEN-UNION FRIEDRICHSHAFEN GMBH
Inventors: PROHASKA, ARMIN
ROHLAND, BERND
BISCHOFF, MANFRED
PLZAK, VOJTECH
Priority Data: 197 21 546.7 23.05.1997 DE
Title: (EN) DOUBLE LAYER CATHODE FOR MOLTEN CARBONATE FUEL CELLS AND METHOD FOR PRODUCING THE SAME
(FR) CATHODE A DOUBLE COUCHE POUR PILES A COMBUSTIBLE A CARBONATE FONDU ET SON PROCEDE DE FABRICATION
Abstract:
(EN) The invention relates to a double layer cathode for molten carbonate fuel cells, containing a first layer (2a) consisting of a first cathode material, preferably lithium-treated nickel oxide, and a second layer (2b) consisting of cerium-activated lithium cobaltite. The inventive double layer cathode is characterised in that the polarization resistance is less dependent on temperature and in that it has a longer life. The double layer cathode is especially suitable for operating a fuel cell at less than 650 ~C. The material for the second cathode layer (2b) is produced by activating cobalt oxide by co-precipitation with cerium and treating it with lithium carbonate to form a suspension. Said suspension is then applied to the first cathode layer (2a) as a second cathode layer (2b), dried and sintered at a high temperature.


Also published as:
EP0988654US6420062JP2000513141 WO/1998/053513