Advanced fuel cell development. Progress report, January-March 1984. [Effect on plant efficiency]

Technical Report · Tue Jan 01 04:00:00 EST 1985

OSTI ID:6038725

Pierce, R D; Baumert, B; Claar, T D; Fousek, R J; Huang, H S; Kaun, T D; Krumpelt, M; Minh, N Q; Mrazek, F C; Poeppel, R B

This report describes fuel cell research and development activities at Argonne National Laboratory (ANL) during the period January through March 1984. These efforts have been directed principally toward seeking alternative cathode materials to NiO for molten carbonate fuel cells. Based on an investigation of the thermodynamically stable phases formed under cathode conditions, a number of prospective alternative cathode materials have been identified. From the list of candidates, LiFeO/sub 2/, Li/sub 2/MnO/sub 3/, and ZnO were selected for further investigation. During this quarter, they were doped to promote conductivity and tested for solubility and ion migration in the cell environment. These tests showed that Li/sub 2/MnO/sub 3/ and LiFeO/sub 2/ are attractive; further work is being done to better understand the conductivity of these materials; ZnO has proved to be too soluble for further consideration. An investigation directed to understanding in-cell densification of anode materials was initiated. In addition, calculations were made to evaluate the practicality of controlling sulfur accumulation in molten carbonate fuel cells by bleed-off of a portion of the anode gas that could be recycled to the cathode. In addition, a model is being developed to predict the performance of solid oxide fuel cells as a function of cell design and operation. 2 references, 33 figures, 10 tables.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6038725
• Report Number(s): ANL-84-64; ON: DE85009662
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
CATHODES
CHEMICAL PREPARATION
DATA
DIRECT ENERGY CONVERTERS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
FLUIDS
FUEL CELLS
FUEL GAS
FUELS
GAS FUELS
GASES
HIGH-TEMPERATURE FUEL CELLS
HOT GAS CLEANUP
INFORMATION
MATERIALS
MATERIALS TESTING
MICROSCOPY
MOLTEN CARBONATE FUEL CELLS
NUMERICAL DATA
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
PURIFICATION
SOLID ELECTROLYTES
SOLUBILITY
SPECIFICATIONS
SULFUR CONTENT
SYNTHESIS
TEMPERATURE DEPENDENCE
TESTING