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Title: Method of making straight fuel cell tubes

Abstract

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.

Inventors:
 [1]
  1. Edgewood, PA
Issue Date:
Research Org.:
Westinghouse Electric Corp., Pittsburgh, PA (United States)
OSTI Identifier:
873670
Patent Number(s):
6217822
Assignee:
Siemens Westinghouse Power Corporation (Orlando, FL)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
B - PERFORMING OPERATIONS B28 - WORKING CEMENT, CLAY, OR STONE B28B - SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
DOE Contract Number:  
FC21-91MC28055
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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; /264/

Citation Formats

Borglum, Brian P. Method of making straight fuel cell tubes. United States: N. p., 2001. Web.
Borglum, Brian P. Method of making straight fuel cell tubes. United States.
Borglum, Brian P. Mon . "Method of making straight fuel cell tubes". United States. https://www.osti.gov/servlets/purl/873670.
@article{osti_873670,
title = {Method of making straight fuel cell tubes},
author = {Borglum, Brian P},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

Patent:

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