Superior power density solid oxide fuel cells by enlarging the three-phase boundary region of a NiO–Ce0.8Gd0.2O1.9 composite anode through optimized surface structure

2013 ◽  
Vol 15 (36) ◽  
pp. 14966 ◽  
Author(s):  
Daeil Yoon ◽  
Qing Su ◽  
Haiyan Wang ◽  
Arumugam Manthiram
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Phase Boundary ◽  
Surface Structure ◽  
Power Density ◽  
Boundary Region ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Composite Anode ◽  
Three Phase

Three-phase boundary length in solid-oxide fuel cells: A mathematical model

2008 ◽  
Vol 178 (1) ◽  
pp. 368-372 ◽  
Author(s):  
Vinod M. Janardhanan ◽  
Vincent Heuveline ◽  
Olaf Deutschmann
Keyword(s):  
Mathematical Model ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Phase Boundary ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Boundary Length ◽  
Three Phase ◽  
Three Phase Boundary

Effect of Bi-Layer Interconnector Design on the Current Density of Solid Oxide Fuel Cells

2009 ◽  
Author(s):  
Qiuyang Chen ◽  
Jian Zhang ◽  
Qiuwang Wang ◽  
Min Zeng
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Current Density ◽  
Porous Electrode ◽  
Solid Oxide ◽  
The Novel ◽  
Oxide Fuel ◽  
Plane Normal ◽  
Three Phase ◽  
Porous Anode

The concentration gradient of fuel and oxidant gas is great in the plane normal to the solid oxide fuel cells (SOFC) three-phase-boundary (TPB) layer, especially in the porous electrode. We present a novel interconnector design, termed bilayer interconnector, for SOFC. It can distribute the fuel and air gas in the plane normal to the SOFC TPB layer. In this paper, we develop a 3D model to study the current density of the SOFC with conventional and novel bi-layer interconnectors. The numerical results show that the novel SOFC design Rib1 can slightly enhance the mass transfer in the porous anode and current density. The novel SOFC design Rib2 can improve the current density significantly under low electrical conductivity of interconnector.

Concepts for Ultra-High Power Density Solid Oxide Fuel Cells (SOFC)

2014 ◽  
Vol 61 (1) ◽  
pp. 177-190
Author(s):  
L. Zhu ◽  
L. Zhang ◽  
F. Zhao ◽  
A. V. Virkar
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Power Density ◽  
High Power ◽  
Solid Oxide ◽  
High Power Density ◽  
Oxide Fuel

Geometrical scale dependency of thin film solid oxide fuel cells

2020 ◽  
Vol 34 (07n09) ◽  
pp. 2040038
Author(s):  
Yeageun Lee ◽  
Jianhuang Zeng ◽  
Chunhua Zheng ◽  
Wonjong Yu ◽  
Suk Won Cha ◽  
...  
Keyword(s):  
Thin Film ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Power Density ◽  
Solid Oxide ◽  
Scale Dependency ◽  
Oxide Fuel ◽  
Cross Sectional ◽  
Ohmic Losses ◽  
Geometrical Scale

To study the geometrical scale dependency of thin film solid oxide fuel cells (SOFCs), we fabricated three thin films SOFCs which have the same cross-sectional structure but different electrode areas of 1 mm2, 4 mm2 and 9 mm2. Since the activation and ohmic losses of SOFCs depend on their active region, we examined the variations of the power density of the cells with a Pt/YSZ/Pt structure and simulated the power density variations using the COMSOL software package.

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