Method of manufacturing cathodes for fuel cells
AssigneeFinmeccanica S.p.A. Azienda Ansaldo
InventorErmete Antolini
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Abstract
A method of manufacturing cathodes for molten carbonate fuel cells containing lithiated nickel oxide, generally known in the art by the initials MCFC, which have matrices of ceramic material prepared with the use of an organic binding agent, comprises the preparation of a mixture containing nickel powder, lithium carbonate, polyvinyl butyral and ethanol, the mixture being suitably processed, cut into cathode form and mounted directly inside one of the fuel cells, the cell then being heated to its working temperature, enabling all of the organic agents to be eliminated from the mixture, saving time and energy.
Claims14
A method of manufacturing lithiated nickel oxide based cathodes for molten carbonate fuel cells having matrices of ceramic material prepared with an organic binding agent, the method comprising the steps:
- (a) preparing a mixture comprising:
- nickel powder,
- lithium carbonate,
- an organic binding agent which is the same as that used for the matrices of ceramic material,
- a low-boiling organic solvent;
- (b) tape casting the mixture in a strip;
- (c) evaporating the solvent;
- (d) cutting the mixture into cathode form;
- (e) introducing the mixture into the molten carbonate fuel cell;
- and
- (f) heating the cell to its working temperature, whereby said nickel is oxidated and lithiated and said organic binding agent is driven off.
A method of manufacturing lithiated nickel oxide based cathodes for molten carbonate fuel cells having matrices of ceramic material prepared with an organic binding agent, the method comprising the steps:
- (a) preparing a mixture comprising:
- nickel powder,
- lithium carbonate, an organic binding agent which is the same as that used for the matrices of ceramic material,
- a low-boiling organic solvent;
- (b) tape casting the mixture in a strip;
- (c) evaporating the solvent;
- (d) cutting the mixture into cathode form;
- and
- (e) introducing the mixture into the molten carbonate fuel cell.
Dependencies are inferred from the claim text.