Tape method of forming a thin layer of doped lanthanum chromite particles and of bonding such on an electrode

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868400

Richards, Von L ^[1]; Singhal, Subhash C ^[1]; Pal, Uday B ^[2]

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1. Murrysville, PA
2. Cambridge, MA

A combustible polymer film, useful for application of an interconnection on an electrode is made by: (1) providing doped LaCro.sub.3 particles; (2) dispersing doped LaCrO.sub.3 particles in a solvent, to provide a dispersion; (3) screening the dispersion to provide particles in the range of from 30 micrometers to 80 micrometers; (4) admixing a fugitive polymer with the particles; (5) casting the dispersion to provide a film; (6) drying the film; and (7) stripping the film. The film can then be applied to a porous, preheated electrode top surface, and then electrochemical vapor depositing a dense skeletal LaCrO.sub.3 structure, between and around the doped LaCrO.sub.3 particles. Additional solid oxide electrolyte and fuel electrode layers can then be added to provide a fuel cell.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• DOE Contract Number: AC02-80ET17089
• Assignee: Westinghouse Electric Corp. (Pittsburgh, PA)
• Patent Number(s): US 5132352
• OSTI ID: 868400
• Country of Publication: United States
• Language: English

Related Subjects

tape
method
forming
layer
doped
lanthanum
chromite
particles
bonding
electrode
combustible
polymer
film
useful
application
interconnection
providing
lacro
dispersing
solvent
provide
dispersion
screening
range
30
micrometers
80
admixing
fugitive
casting
drying
stripping
applied
porous
preheated
top
surface
electrochemical
vapor
depositing
dense
skeletal
structure
additional
solid
oxide
electrolyte
fuel
layers
added
cell
fuel cell
polymer film
top surface
chemical vapor
solid oxide
oxide electrolyte
fuel electrode
doped lanthanum
lanthanum chromite
doped lacro
electrochemical vapor
vapor depositing
electrode layers
electrode layer
/524/29/427/