Lithium-ferrate-based cathodes for molten carbonate fuel cells

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:465207

Lanagan, M T; Wolfenstine, J ^[1]; Bloom, I; Kaun, T D; Krumpelt, M ^[2]

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1. Argonne National Lab., IL (United States). Energy Technology Div.
2. Argonne National Lab., IL (United States). Chemical Technology Div.

Argonne National Laboratory is developing advanced cathodes for pressurized operation of the molten carbonate fuel cell (MCFC) at approximately 650 degrees Centigrade. These cathodes are based on lithium ferrate (LiFeO[sub 2]) which is attractive because of its very low solubility in the molten (Li,K)[sub 2]CO[sub 3] electrolyte. Because of its high resistivity, LiFeO[sub 2] cannot be used as a direct substitute for NiO. Cation substitution is, therefore, necessary to decrease resistivity. The effect of cation substitution on the resistivity and deformation of LiFeO[sub 2] was determined. The substitutes were chosen because their respective oxides as well as LiFeO[sub 2] crystallize with the rock-salt structure.

• Research Organization: Argonne National Lab., IL (United States). Energy Technology Div.
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 465207
• Report Number(s): ANL/ET/CP--89606; CONF-961107--8; ON: DE97003883
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
CATHODES
CATIONS
DEFORMATION
ELECTRIC CONDUCTIVITY
ELECTROCHEMICAL CORROSION
ELECTROCHEMISTRY
ELECTROLYTES
FERRATES
ION EXCHANGE
ION EXCHANGE MATERIALS
LITHIUM COMPOUNDS
MATERIALS TESTING
MOLTEN CARBONATE FUEL CELLS
PARTIAL PRESSURE
PRESSURE DEPENDENCE
SERVICE LIFE
SYNTHESIS