Fuel cell tubes and method of making same
Abstract
A method of manufacturing porous ceramic tubes for fuel cells with improved properties and higher manufacturing yield is disclosed. The method involves extruding a closed end fuel cell tube, such as an air electrode of a solid oxide fuel cell, in which the closed end also functions as the sintering support. The resultant fuel cell tube has a superior porosity distribution which allows improved diffusion of oxygen at the closed end of the tube during operation of the fuel cell. Because this region has the highest current density, performance enhancement and improved reliability of the fuel cell tube result. Furthermore, the higher manufacturing yield associated with the present method decreases the overall fuel cell cost. A method of manufacturing porous ceramic tubes for fuel cells with improved properties and higher manufacturing yield is disclosed. The method involves extruding a closed end fuel cell tube, such as an air electrode of a solid oxide fuel cell, in which the closed end also functions as the sintering support. The resultant fuel cell tube has a superior porosity distribution which allows improved diffusion of oxygen at the closed end of the tube during operation of the fuel cell. Because this region has themore »
- Inventors:
-
- Edgewood, PA
- Issue Date:
- Research Org.:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- OSTI Identifier:
- 879511
- Patent Number(s):
- 5993985
- Application Number:
- 09/058067
- Assignee:
- Siemens Westinghouse Power Corporation (Orlando, FL)
- Patent Classifications (CPCs):
-
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
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- DOE Contract Number:
- FC21-91MC28055
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Borglum, Brian P. Fuel cell tubes and method of making same. United States: N. p., 1999.
Web.
Borglum, Brian P. Fuel cell tubes and method of making same. United States.
Borglum, Brian P. Tue .
"Fuel cell tubes and method of making same". United States. https://www.osti.gov/servlets/purl/879511.
@article{osti_879511,
title = {Fuel cell tubes and method of making same},
author = {Borglum, Brian P},
abstractNote = {A method of manufacturing porous ceramic tubes for fuel cells with improved properties and higher manufacturing yield is disclosed. The method involves extruding a closed end fuel cell tube, such as an air electrode of a solid oxide fuel cell, in which the closed end also functions as the sintering support. The resultant fuel cell tube has a superior porosity distribution which allows improved diffusion of oxygen at the closed end of the tube during operation of the fuel cell. Because this region has the highest current density, performance enhancement and improved reliability of the fuel cell tube result. Furthermore, the higher manufacturing yield associated with the present method decreases the overall fuel cell cost. A method of manufacturing porous ceramic tubes for fuel cells with improved properties and higher manufacturing yield is disclosed. The method involves extruding a closed end fuel cell tube, such as an air electrode of a solid oxide fuel cell, in which the closed end also functions as the sintering support. The resultant fuel cell tube has a superior porosity distribution which allows improved diffusion of oxygen at the closed end of the tube during operation of the fuel cell. Because this region has the highest current density, performance enhancement and improved reliability of the fuel cell tube result. Furthermore, the higher manufacturing yield associated with the present method decreases the overall fuel cell cost.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 30 00:00:00 EST 1999},
month = {Tue Nov 30 00:00:00 EST 1999}
}