Phase Field Simulation Coupling Microstructural Evolution and Crack Propagation during Performance Degradation of Solid Oxide Fuel Cells

Abdullah, Taufiq; Liu, Lin

doi:10.1149/06602.0207ecst

Cited by 10 publications

(5 citation statements)

References 29 publications

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“…Theoretical studies on the Ni coarsening have been performed using a variety of techniques ranging from simple coarsening models [17] to cellar automaton [18] and 3D phase-field simulations [7,[19][20][21] . Using the phasefield approach, Chen et al simulated the Ni coarsening in a real Ni-YSZ microstructure considering the wetting angle between Ni and YSZ [15] , while Jiao and Shikazono included also crystallographic information [22] .…”

mentioning

confidence: 99%

Three dimensional characterization of nickel coarsening in solid oxide cells via ex-situ ptychographic nano-tomography

Angelis

Jørgensen

Tsai

et al. 2018

Journal of Power Sources

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J. R. (2018). Three dimensional characterization of nickel coarsening in solid oxide cells via ex-situ ptychographic nano-tomography. Journal of Power Sources, 383, 72-79. https://doi. AbstractNickel coarsening is considered a significant cause of solid oxide cell (SOC) performance degradation.Therefore, understanding the morphological changes in the nickel-yttria stabilized zirconia (Ni-YSZ) fuel electrode is crucial for the wide spread usage of SOC technology. This paper reports a study of the initial 3D microstructure evolution of a SOC analyzed in the pristine state and after 3 and 8 hours of annealing at 850 °C, in dry hydrogen. The analysis of the evolution of the same location of the electrode shows a substantial change of the nickel and pore network during the first 3 hours of treatment, while only negligible changes are observed after 8 hours. The nickel coarsening results in loss of connectivity in the nickel network, reduced nickel specific surface area and decreased total triple phase boundary density. For the condition of this experiment, nickel coarsening is shown to be predominantly curvature driven, and changes in the electrode microstructure parameters are discussed in terms of local microstructural evolution.

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mentioning

confidence: 99%

Three dimensional characterization of nickel coarsening in solid oxide cells via ex-situ ptychographic nano-tomography

Angelis

Jørgensen

Tsai

et al. 2018

Journal of Power Sources

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“…Abdullah et al (99,100) developed an integrated meso-scaled phase-field model to couple microstructure evolution and crack formation in the fuel electrode. Through the simulation of randomly generated microstructure, an investigation on crack formation resulting from the accumulation of pores caused by Ni coarsening during the long-term operation was conducted.…”

Section: Mechanical Failurementioning

confidence: 99%

Phase-Field Modelling of Microstructure Evolution in Solid Oxide Cells

Shang,

Chen

2023

ECS Trans.

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The performance degradation of Solid Oxide Cells (SOC) caused by microstructure evolution limits the SOC’s lifetime. Long-term testing combined with post-mortem characterization is one common approach to clarify degradation mechanisms and develop counter-acting measures, but this is associated with extensive amount of experimental work and long research time. Instead, many researchers have devoted their efforts to investigating degradation using computational methods. The phase-field model has been utilized in the SOC research to illustrate the microstructure evolution during long-term operation from micron to millimeter scale, with the possibility of taking into account the mechanical properties as well. In this article, the principle of the phase-field method and different models are introduced first, followed by examples published in literature on phase-field modeling of various degradation phenomena in SOCs. Finally, possible strategies coupling modelling and experimental research in optimizing SOC performance and microstructure are discussed.

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“…An approach for studying the phase transformation during lithium-ion diffusion is the Cahn-Hilliard-type phase field method (14). Instead of directly tracking the interphase between two phases, the diffusive interphase is assumed to be governed by a dimensionless phase-field variable (14,43,44). Chen et al developed the Cahn-Hilliard formulation to simulate the lithium diffusion between two phases (45).…”

Section: Introductionmentioning

confidence: 99%

Phase-Field Modeling of Solid Electrolyte Interphase (SEI) Cracking in Lithium Batteries

2018

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The formation of solid electrolyte interphase (SEI) can cause battery capacity fade and increase cell internal resistance, while inhibiting further electrolyte decomposition. Lithium-ion diffusion during lithiation and de-lithiation can lead to the stress evolution as well as crack propagation of the SEI. This is one of the major factors that shorten the lifespan of lithium-ion batteries. Therefore, coupling the stress evolution and crack propagation in SEI layer during the lithium ion diffusion is of an important significance to improve the understanding of lithium-ion battery. In this paper, a phase field model is developed to simulate the stress evolution and crack propagation during the lithium ion diffusion. Then the model is applied to study the SEI layer formed on the LiMn 2 O 4 electrode. The simulation results indicate the crack propagation patterns in the SEI layer during lithium ion diffusion.

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Phase Field Simulation Coupling Microstructural Evolution and Crack Propagation during Performance Degradation of Solid Oxide Fuel Cells

Cited by 10 publications

References 29 publications

Three dimensional characterization of nickel coarsening in solid oxide cells via ex-situ ptychographic nano-tomography

Three dimensional characterization of nickel coarsening in solid oxide cells via ex-situ ptychographic nano-tomography

Phase-Field Modelling of Microstructure Evolution in Solid Oxide Cells

Phase-Field Modeling of Solid Electrolyte Interphase (SEI) Cracking in Lithium Batteries

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