Diffusion of Oxygen at Ceramic Interfaces for High-Temperature Solid Oxide Fuel Cells

2005 ◽  
Vol 242-244 ◽  
pp. 129-142 ◽  
Author(s):  
Teruhisa Horita ◽  
Haruo Kishimoto ◽  
Katsuhiko Yamaji ◽  
Natsuko Sakai ◽  
Yue Ping Xiong ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Oxygen Diffusion ◽  
Secondary Ion Mass Spectrometry ◽  
Ceramic Materials ◽  
Electrochemical Process ◽  
Solid Oxide ◽  
Oxide Ceramic ◽  
Oxide Fuel ◽  
Oxide Scales

Oxygen diffusion was measured at oxygen/cathode/electrolyte interfaces and at oxide scales/alloy interconnects in Solid Oxide Fuel Cells (SOFCs). A stable isotope oxygen exchange technique (16O/18O exchange) was adopted to label the diffusion profiles in the oxides, and secondary ion mass spectrometry (SIMS) depth profiles were examined to determine the diffusion coefficients in the oxide ceramic materials. Diffusivity of oxygen in LaMnO3 cathode was measured under polarized condition (that is, considering the electrochemical process and diffusion). Also, oxygen diffusion in the oxide scales formed on the alloy was measured to clarify the formation mechanism of oxide scale.

scholarly journals A Review of Stress Analysis Issues for Solid Oxide Fuel Cells

2010 ◽  
Author(s):  
S. Shakrawar ◽  
J. G. Pharoah ◽  
B. A. Peppley ◽  
S. B. Beale
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Stress Analysis ◽  
State Of The Art ◽  
Ceramic Materials ◽  
Important Application ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Important Concern ◽  
The Subject

Solid oxide fuel cells represent a potentially important application for ceramic materials. There are, however, some significant issues which can affect the reliability and durability of the cell. The generation of stresses and associated strains in fuel cells is an important concern that needs to be addressed in order to avoid mechanical failure of the cell. Few comprehensive studies have been published on the subject of stress analysis of planar and tubular SOFCs to-date, although various numerical methodologies have been used to obtaining the stress distribution in specific SOFC components over the last 10 years. The objective of this paper is to summarize the state-of-the art of solid oxide fuel cell stress analysis efforts so that the salient issues can be identified.

Ceramic Materials for Interconnects in Solid Oxide Fuel Cells - A Review

2014 ◽  
Vol 51 (4) ◽  
pp. 231-242
Author(s):  
Beom-Kyeong Park ◽  
Rak-Hyun Song ◽  
Seung-Bok Lee ◽  
Tak-Hyoung Lim ◽  
Seok-Joo Park ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Ceramic Materials ◽  
Solid Oxide ◽  
Oxide Fuel

Ceramic materials based on zirconium dioxide for the production of solid oxide fuel cells

2020 ◽  
Author(s):  
Elmira I. Denisova ◽  
Anna V. Rozhdestvenskaya ◽  
Eugene M. Belousov ◽  
Vadim V. Kartashov ◽  
Alexey I. Vylkov
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Zirconium Dioxide ◽  
Ceramic Materials ◽  
Solid Oxide ◽  
Oxide Fuel
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