Modeling SOFC Cathodes Based on 3-D Representations of Electrode Microstructure

Kreller, Cortney R.; Drake, Melanie; Adler, Stuart B.; Chen, Hsun-Yi; Yu, Hui-Chia; Thornton, Katsuyo; Wilson, J. R.; Barnett, Scott A.

doi:10.1149/1.3570062

Cited by 18 publications

(14 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The conditions where the macrohomogeneous approximation applies without loss of accuracy were determined in Ref. [45,46] by comparing with results obtained by finite element analysis employing various 3D representations of the electrode microstructure.…”

Section: Mathematical Modelmentioning

confidence: 99%

Linear sweep and cyclic voltammetry of porous mixed conducting oxygen electrode: Formal study of insertion, diffusion and chemical reaction model

et al. 2021

View full text Add to dashboard Cite

show abstract

Section: Mathematical Modelmentioning

confidence: 99%

Linear sweep and cyclic voltammetry of porous mixed conducting oxygen electrode: Formal study of insertion, diffusion and chemical reaction model

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The popularity of FEM in the electrochemical energy community has been boosted by the widespread use of commercial software, among which COMSOL Multiphysics [127] is probably the most popular one for electrochemistry [33,98,111,114,116,[128][129][130][131][132][133][134][135][136][137]. Nonetheless, open-source codes based on deal.ii library [138], such as OpenFCST [99] and ParCell3D [115,139], Sandia's Sierra…”

Section: Finite Element Methods (Fem)mentioning

confidence: 99%

Progress in 3D electrode microstructure modelling for fuel cells and batteries: transport and electrochemical performance

Zhang¹,

Bertei²,

Tariq³

et al. 2019

Prog. Energy

View full text Add to dashboard Cite

Electrode microstructure plays an important role in the performance of electrochemical energy devices including fuel cells and batteries. Building a clear understanding of how the performance is affected by the electrode microstructure is necessary to design the optimal electrode microstructure, to achieve better device performance. 3D microstructure modelling enables us to perform simulations directly on a 3D electrode microstructure and thus link structure with performance. This paper provides an extensive review on the current state of the art in 3D microstructure modelling of transport and electrochemical performance for four promising electrochemical energy technologies: solid oxide fuel cells (SOFCs), proton exchange membrane fuel cells (PEMFCs), redox flow batteries (RFBs) and lithium ion batteries (LIBs). Each technology has different electrode microstructures and processes, and thus presents different challenges. The most commonly used modelling methods including the finite element method (FEM) and the finite volume method (FVM) are reviewed, together with the developing lattice Boltzmann method (LBM), with the advantages and disadvantages of each method revealed. Whilst FEM and FVM have been extensively applied in simulating SOFC and LIB electrodes where the methods are capable of dealing with single phase (gas or liquid) transport, they face challenges in simulating the multiphase phenomenon present in PEMFC and some RFB electrodes. LBM is, on the other hand, well suited in simulating gas-liquid two phase flow and applications in PEMFCs and RFBs, as well as single-phase phenomenon in SOFCs and LIBs. The review also points to current challenges in 3D microstructure modelling, including the

show abstract

“…Several years after the publication of the ALS model, Adler's group addressed some of the deficiencies of the 1D ALS model with an extended model [55,59]. Firstly, the model includes surface diffusion.…”

Section: Electrode Models Based On a Simplified Microstructure Geometrymentioning

confidence: 99%

Modelling of solid oxide cell oxygen electrodes

et al. 2023

View full text Add to dashboard Cite

Numerical models are versatile tools to study and predict efficiently the performance of Solid Oxide Cells (SOCs) according to their microstructure and composition. As the main contribution to the cell polarisation is due to the oxygen electrode, a large part of the proposed models has been focused on this electrode. Electrode modelling aims to improve the SOCs performance by serving as a guide for the microstructural optimisation, and helps to better understand the electrochemical reaction mechanisms. For studying the electrode microstructure, three categories of models can be distinguished: homogenised models, simplified geometry based models, and reconstructed microstructure based models. Most models are based on continuum physics, while elementary kinetic models have been developed more recently. This article presents a review of the existing SOCs models for the oxygen electrode. As a perspective, the current challenges of electrode modelling are discussed in views of a better prediction of the performance and durability, and more specifically for the case of thin-film SOCs.

show abstract

Modeling SOFC Cathodes Based on 3-D Representations of Electrode Microstructure

Cited by 18 publications

References 12 publications

Linear sweep and cyclic voltammetry of porous mixed conducting oxygen electrode: Formal study of insertion, diffusion and chemical reaction model

Linear sweep and cyclic voltammetry of porous mixed conducting oxygen electrode: Formal study of insertion, diffusion and chemical reaction model

Progress in 3D electrode microstructure modelling for fuel cells and batteries: transport and electrochemical performance

Modelling of solid oxide cell oxygen electrodes

Contact Info

Product

Resources

About