Stepped gradient fuel electrode and method for making the same
Abstract
The present invention provides for a method of depositing a stepped-gradient fuel electrode onto a fuel cell support 2 and the resulting fuel cell, that comprises placing a solid oxide fuel cell support that has at least an air electrode layer 4 and an electrolyte layer 6 into an atmospheric plasma spraying chamber and measuring spray parameters of an atmospheric plasma spray to obtain reactive oxides, conductive metal and graphite phases. Then spraying the spray parameters onto the solid oxide fuel cell support to produce multiple sub-layers 8 on the solid oxide fuel cell support, and adjusting a hydrogen usage of the atmospheric plasma spray. The adjusting of the hydrogen usage comprises using high hydrogen levels for the initial spraying of the sub-layers producing a first gradient region, and a lower hydrogen level for subsequent spraying of the sub-layers, producing a second gradient region.
- Inventors:
- Issue Date:
- Research Org.:
- Siemens Energy, Inc., Orlando, FL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1531618
- Patent Number(s):
- 7637967
- Application Number:
- 11/298,321
- Assignee:
- Siemens Energy, Inc. (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
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- DOE Contract Number:
- FC26-97FT34139
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2005-12-08
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Huang, Keqin, Harter, Harold D., and Turkal, Paul G. Stepped gradient fuel electrode and method for making the same. United States: N. p., 2009.
Web.
Huang, Keqin, Harter, Harold D., & Turkal, Paul G. Stepped gradient fuel electrode and method for making the same. United States.
Huang, Keqin, Harter, Harold D., and Turkal, Paul G. Tue .
"Stepped gradient fuel electrode and method for making the same". United States. https://www.osti.gov/servlets/purl/1531618.
@article{osti_1531618,
title = {Stepped gradient fuel electrode and method for making the same},
author = {Huang, Keqin and Harter, Harold D. and Turkal, Paul G.},
abstractNote = {The present invention provides for a method of depositing a stepped-gradient fuel electrode onto a fuel cell support 2 and the resulting fuel cell, that comprises placing a solid oxide fuel cell support that has at least an air electrode layer 4 and an electrolyte layer 6 into an atmospheric plasma spraying chamber and measuring spray parameters of an atmospheric plasma spray to obtain reactive oxides, conductive metal and graphite phases. Then spraying the spray parameters onto the solid oxide fuel cell support to produce multiple sub-layers 8 on the solid oxide fuel cell support, and adjusting a hydrogen usage of the atmospheric plasma spray. The adjusting of the hydrogen usage comprises using high hydrogen levels for the initial spraying of the sub-layers producing a first gradient region, and a lower hydrogen level for subsequent spraying of the sub-layers, producing a second gradient region.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {12}
}
Works referenced in this record:
A study of Ni + 8YSZ/8YSZ/LaSrCoO ITSOFC fabricated by atmospheric plasma spraying
journal, February 2005
- Zheng, R.; Zhou, X.; Wang, S.
- Journal of Power Sources, Vol. 140, Issue 2