Support tube for high temperature solid electrolyte electrochemical cell

Patent · Wed Jan 01 00:00:00 EST 1986

OSTI ID:865895

Ruka, Roswell J ^[1]; Rossing, Barry R ^[2]

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1. Churchill Boro, PA
2. Pittsburgh, PA

Disclosed is a compound having a fluorite-like structure comprising a solid solution having the general formula [(ZrO.sub.2).sub.1-x (MO.sub.s).sub.x ].sub.1-y [(La.sub.m A.sub.1-m).sub.2-z (Mn.sub.n B.sub.1-n).sub.z O.sub.r ].sub.y where MO.sub.5 is an oxide selected from the group consisting of calcia, yttria, rare earth oxides, and mixtures thereof, x is about 0.1 to 0.3, y is about 0.005 to about 0.06, z is about 0.1 to about 1.9, A is yttrium, rare earth element, alkaline earth element, or mixture thereof, B is iron, nickel, cobalt, or mixture thereof, m is 0.3 to 1, n is 0.5 to 1, and r is 2 to 4. A porous tube made from such a composition can be coated with an electrically conducting mixed oxide electrode such as lanthanum manganite, and can be used in making high temperature electrochemical cells such as solid electrolyte fuel cells.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• DOE Contract Number: AC02-80ET17089
• Assignee: Westinghouse Electric Corp. (Pittsburgh, PA)
• Patent Number(s): US 4596750
• OSTI ID: 865895
• Country of Publication: United States
• Language: English

Related Subjects

support
tube
temperature
solid
electrolyte
electrochemical
cell
disclosed
compound
fluorite-like
structure
comprising
solution
formula
zro
1-x
1-y
1-m
2-z
mn
1-n
z
oxide
selected
consisting
calcia
yttria
rare
earth
oxides
mixtures
005
06
yttrium
element
alkaline
mixture
iron
nickel
cobalt
porous
composition
coated
electrically
conducting
mixed
electrode
lanthanum
manganite
cells
fuel
mixed oxide
temperature electrochemical
oxide electrode
fuel cell
earth oxides
support tube
earth oxide
electrolyte fuel
temperature solid
electrochemical cells
fuel cells
electrochemical cell
solid electrolyte
alkaline earth
rare earth
electrically conducting
electrolyte electrochemical
solid solution
lanthanum manganite
porous tube
structure comprising
oxide selected
earth element
/429/252/