Method of making straight fuel cell tubes

Patent · Mon Jan 01 00:00:00 EST 2001

OSTI ID:873670

Borglum, Brian P ^[1]

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1. Edgewood, PA

A method and an apparatus for making straight fuel cell tubes are disclosed. Extruded tubes comprising powders of fuel cell material and a solvent are dried by rotating the extruded tubes. The rotation process provides uniform circumferential drying which results in uniform linear shrinkage of the tubes. The resultant dried tubes are very straight, thereby eliminating subsequent straightening steps required with conventional processes. The method is particularly useful for forming inner air electrode tubes of solid oxide fuel cells.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• DOE Contract Number: FC21-91MC28055
• Assignee: Siemens Westinghouse Power Corporation (Orlando, FL)
• Patent Number(s): US 6217822
• OSTI ID: 873670
• Country of Publication: United States
• Language: English

Related Subjects

method
straight
fuel
cell
tubes
apparatus
disclosed
extruded
comprising
powders
material
solvent
dried
rotating
rotation
process
provides
uniform
circumferential
drying
results
linear
shrinkage
resultant
eliminating
subsequent
straightening
steps
required
conventional
processes
particularly
useful
forming
inner
air
electrode
solid
oxide
cells
provides uniform
fuel cell
process provides
air electrode
fuel cells
particularly useful
oxide fuel
solid oxide
cell tubes
cell material
conventional processes
cell tube
straight fuel
conventional process
extruded tubes
inner air
electrode tube
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