Developmental Status and System Studies of the Monolithic Solid Oxide Fuel Cell

Conference · Tue Jul 02 04:00:00 EDT 1991

OSTI ID:5779236

Myles, Kevin M. ^[1]

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1. Argonne National Laboratory (ANL), Argonne, IL (United States)

The monolithic solid oxide fuel cell (MSOFC) was invented at the Argonne National Laboratory in 1983 and is currently being developed by a team consisting of Argonne National Laboratory and Allied-Signal Aerospace/AiResearch. The MSOFC is an oxide ceramic structure in which appropriate electronic and ionic conductors are fabricated in a "honeycomb" shape similar to a block of corrugated paperboard. The electrolyte, which conducts oxygens ions from the air side to the fuel side, is yttria-stabilized zirconia (YSZ). All the other materials, that is, the nickel-YSZ anode, the strontium-doped lanthanum manganite cathode, and the doped lanthanum chromite interconnect (bipolar plate), are electronic conductors. These electronic and ionic conductors are arranged to provide short conduction paths to minimize resistive losses. The power density achievable with the MSOFC is expected to be about 8 kW/kg or 4 kW/l at fuel efficiencies over 50 percent, because of small cell size and low resistive losses in the materials. These performances have been approached in laboratory test fuel cell stacks of nominal 125-W capacities.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE; Defense Advanced Research Projects Agency (DARPA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5779236
• Report Number(s): ANL/CP--72346; CONF-9107106--1; ON: DE91014389
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300500* -- Fuel Cells
CHALCOGENIDES
CRYSTAL STRUCTURE
DESIGN
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELECTROLYTES
FUEL CELLS
INFORMATION
OXIDES
OXYGEN COMPOUNDS
SOLID ELECTROLYTE FUEL CELLS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES