Solid oxide electrochemical cell fabrication process

Patent · 31 December 1991

OSTI ID:868157

Dollard, Walter J ^[1]; Folser, George R ^[2]; Pal, Uday B ^[3]; Singhal, Subhash C ^[4]

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1. Churchill Borough, PA
2. Lower Burrell, PA
3. Cambridge, MA
4. Murrysville, PA

A method to form an electrochemical cell (12) is characterized by the steps of thermal spraying stabilized zirconia over a doped lanthanum manganite air electrode tube (14) to provide an electrolyte layer (15), coating conductive particles over the electrolyte, pressurizing the outside of the electrolyte layer, feeding halide vapors of yttrium and zirconium to the outside of the electrolyte layer and feeding a source of oxygen to the inside of the electrolyte layer, heating to cause oxygen reaction with the halide vapors to close electrolyte pores if there are any and to form a metal oxide coating on and between the particles and provide a fuel electrode (16).

• Research Organization: National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
• DOE Contract Number: AC21-80ET17089
• Assignee: Westinghouse Electric Corp. (Pittsburgh, PA)
• Patent Number(s): US 5085742
• OSTI ID: 868157
• Country of Publication: United States
• Language: English

Related Subjects

/205/29/427/
12
14
15
16
air
air electrode
cell
cell fabrication
characterized
close
coating
conductive
conductive particles
doped
doped lanthanum
electrochemical
electrochemical cell
electrode
electrode tube
electrolyte
electrolyte layer
fabrication
fabrication process
feeding
form
fuel
fuel electrode
halide
halide vapor
halide vapors
heating
inside
lanthanum
lanthanum manganite
layer
manganite
metal
metal oxide
method
outside
oxide
oxide coating
oxide electrochemical
oxygen
oxygen react
oxygen reaction
particles
pores
pressurizing
process
provide
reaction
solid
solid oxide
source
spraying
stabilized
stabilized zirconia
steps
thermal
thermal spray
thermal spraying
tube
vapors
yttrium
zirconia
zirconium