Material and fabrication challenges in the development of monolithic solid oxide fuel cells

Conference · Sun Jan 01 04:00:00 EST 1989

DOI:https://doi.org/10.1109/IECEC.1989.74674· OSTI ID:5980070

Balachandran, U; Dorris, S E; Picciolo, J J; Poeppel, R B; McPheeters, C C; Minh, N Q

Monolithic solid oxide fuel cells (MSOFCs) are presently under development for a variety of practical applications (e.g., advanced space and aerospace power systems, electric utility power generation). The MSOFC is composed of a honeycomb of very small cells of 1 to 2 mm in diameter. The walls of the honeycomb are formed from thin (25 to 100 /mu/m) ceramic layers of cell components: cathode (Sr-doped LaMnO/sub 3/), anode (Ni/Y/sub 2/O/sub 3/-ZrO/sub 2/ cermet), electrolyte (Y/sub 2/O/sub 3/-stabilized ZrO/sub 2/), and interconnect (doped LaCrO/sub 3/) materials. These walls form the passages for fuel and oxidant gases. The MSOFC will convert hydrogen or hydrocarbon fuels to DC power at more than 50% efficiency and can achieve considerably higher energy densities than many other technologies. Successful fabrication of an MSOFC depends on incorporating the materials into a self-supporting structure at a higher sintering temperature. A fabrication scheme for the MSOFC must incorporate each material such that no conditions of any fabrication step will destroy desired material characteristics of any of the component layers. Material characteristics and processing parameters must be tailored and controlled to fabricate the MSOFC with desired properties. This paper discusses material properties, material requirements, and fabrication issues in the development of the MSOFC. 12 refs., 9 figs.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5980070
• Report Number(s): CONF-890815-5; ON: DE89012422
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
CHALCOGENIDES
CHROMIUM COMPOUNDS
CHROMIUM OXIDES
DIRECT ENERGY CONVERTERS
DOPED MATERIALS
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
FABRICATION
FUEL CELLS
HYDROCARBONS
LANTHANUM COMPOUNDS
MANGANESE COMPOUNDS
MANGANESE OXIDES
MATERIALS
MATERIALS TESTING
NICKEL COMPOUNDS
NICKEL OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
TESTING
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES