Long-term and Redox Stability of Electrolyte Supported Solid Oxide Fuel Cells Under Various Operating Conditions

2019 ◽  
Vol 7 (1) ◽  
pp. 381-388 ◽  
Author(s):  
Sindy Mosch ◽  
Nikolai Trofimenko ◽  
Mihail Kusnezoff ◽  
Thomas Betz ◽  
Marco Kellner
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Operating Conditions ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Redox Stability

Study on the long-term discharge and redox stability of symmetric flat-tube solid oxide fuel cells

2021 ◽  
Vol 46 (15) ◽  
pp. 9741-9748
Author(s):  
Jun Yang ◽  
Zhiwen Zou ◽  
Hua Zhang ◽  
Xiaohui Chang ◽  
Wu Liu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Flat Tube ◽  
Redox Stability

scholarly journals Computational engineering of the oxygen electrode-electrolyte interface in solid oxide fuel cells

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Kaiming Cheng ◽  
Huixia Xu ◽  
Lijun Zhang ◽  
Jixue Zhou ◽  
Xitao Wang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Microstructure Evolution ◽  
Oxygen Electrode ◽  
Solid Oxide ◽  
Ohmic Loss ◽  
Oxide Fuel ◽  
Computational Engineering ◽  
Electrolyte Interface

AbstractThe Ce0.8Gd0.2O2−δ (CGO) interlayer is commonly applied in solid oxide fuel cells (SOFCs) to prevent chemical reactions between the (La1−xSrx)(Co1−yFey)O3−δ (LSCF) oxygen electrode and the Y2O3-stabilized ZrO2 (YSZ) electrolyte. However, formation of the YSZ–CGO solid solution with low ionic conductivity and the SrZrO3 (SZO) insulating phase still happens during cell production and long-term operation, causing poor performance and degradation. Unlike many experimental investigations exploring these phenomena, consistent and quantitative computational modeling of the microstructure evolution at the oxygen electrode–electrolyte interface is scarce. We combine thermodynamic, 1D kinetic, and 3D phase-field modeling to computationally reproduce the element redistribution, microstructure evolution, and corresponding ohmic loss of this interface. The influences of different ceramic processing techniques for the CGO interlayer, i.e., screen printing and physical laser deposition (PLD), and of different processing and long-term operating parameters are explored, representing a successful case of quantitative computational engineering of the oxygen electrode–electrolyte interface in SOFCs.

scholarly journals Performance and long term durability of metal-supported solid oxide fuel cells

2015 ◽  
Vol 123 (1436) ◽  
pp. 205-212 ◽  
Author(s):  
Chun-Huang TSAI ◽  
Chang-Sing HWANG ◽  
Chun-Liang CHANG ◽  
Sheng-Fu YANG ◽  
Shih-Wei CHENG ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel
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