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Numerical Investigation of the Effects of Anode Microstructural Parameters on SOEC Performance.

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Title: Numerical Investigation of the Effects of Anode Microstructural Parameters on SOEC Performance.
Authors: Li, Haoran1 (AUTHOR), Long, Jiale1 (AUTHOR), Lu, Yuan1 (AUTHOR), Lin, Zihan1 (AUTHOR), Zhou, Mingjue1 (AUTHOR) zhoumingjue@zjut.edu.cn
Source: Energies (19961073). May2026, Vol. 19 Issue 9, p2184. 23p.
Subject Terms: *Current density (Electromagnetism), *Porosity, *Particle size distribution, *High temperature electrolysis, *Electrochemical electrodes, *Gas flow, *Electrochemical apparatus
Abstract: Solid oxide electrolysis cells (SOECs) are regarded as a promising technology for sustainable hydrogen production because of their high energy conversion efficiency. In this study, a multiphysics numerical model combined with a random particle packing framework was used to evaluate the influence of anode microstructural parameters on the electrochemical performance of a button-type SOEC. The effects of anode porosity, particle size, and electrode thickness on current density were systematically analyzed. Increasing porosity from 0.3 to 0.5 reduced the current density because of the decreased fraction of electrochemically active material. Increasing the anode particle size from 50 to 300 nm significantly shortened the triple-phase boundary (TPB) length, leading to a decrease in current density from 6289 to 5502 A m−2. The effect of anode thickness reflects a trade-off between electrochemical activity and gas transport, with the current density increasing from 5502 to 5940 A m−2 as the thickness increased from 10 to 20 μm. Overall, the results highlight the coupled roles of reaction-site availability and oxygen transport in determining SOEC performance. This study provides a parametric assessment of how anode microstructure affects SOEC performance and may support the structural optimization of SOEC oxygen electrodes. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 193716080
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PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Numerical Investigation of the Effects of Anode Microstructural Parameters on SOEC Performance.
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Haoran%22">Li, Haoran</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Long%2C+Jiale%22">Long, Jiale</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lu%2C+Yuan%22">Lu, Yuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lin%2C+Zihan%22">Lin, Zihan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Mingjue%22">Zhou, Mingjue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhoumingjue@zjut.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. May2026, Vol. 19 Issue 9, p2184. 23p.
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  Data: *<searchLink fieldCode="DE" term="%22Current+density+%28Electromagnetism%29%22">Current density (Electromagnetism)</searchLink><br />*<searchLink fieldCode="DE" term="%22Porosity%22">Porosity</searchLink><br />*<searchLink fieldCode="DE" term="%22Particle+size+distribution%22">Particle size distribution</searchLink><br />*<searchLink fieldCode="DE" term="%22High+temperature+electrolysis%22">High temperature electrolysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Electrochemical+electrodes%22">Electrochemical electrodes</searchLink><br />*<searchLink fieldCode="DE" term="%22Gas+flow%22">Gas flow</searchLink><br />*<searchLink fieldCode="DE" term="%22Electrochemical+apparatus%22">Electrochemical apparatus</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Solid oxide electrolysis cells (SOECs) are regarded as a promising technology for sustainable hydrogen production because of their high energy conversion efficiency. In this study, a multiphysics numerical model combined with a random particle packing framework was used to evaluate the influence of anode microstructural parameters on the electrochemical performance of a button-type SOEC. The effects of anode porosity, particle size, and electrode thickness on current density were systematically analyzed. Increasing porosity from 0.3 to 0.5 reduced the current density because of the decreased fraction of electrochemically active material. Increasing the anode particle size from 50 to 300 nm significantly shortened the triple-phase boundary (TPB) length, leading to a decrease in current density from 6289 to 5502 A m−2. The effect of anode thickness reflects a trade-off between electrochemical activity and gas transport, with the current density increasing from 5502 to 5940 A m−2 as the thickness increased from 10 to 20 μm. Overall, the results highlight the coupled roles of reaction-site availability and oxygen transport in determining SOEC performance. This study provides a parametric assessment of how anode microstructure affects SOEC performance and may support the structural optimization of SOEC oxygen electrodes. [ABSTRACT FROM AUTHOR]
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      – Type: doi
        Value: 10.3390/en19092184
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 23
        StartPage: 2184
    Subjects:
      – SubjectFull: Current density (Electromagnetism)
        Type: general
      – SubjectFull: Porosity
        Type: general
      – SubjectFull: Particle size distribution
        Type: general
      – SubjectFull: High temperature electrolysis
        Type: general
      – SubjectFull: Electrochemical electrodes
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      – SubjectFull: Gas flow
        Type: general
      – SubjectFull: Electrochemical apparatus
        Type: general
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      – TitleFull: Numerical Investigation of the Effects of Anode Microstructural Parameters on SOEC Performance.
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            NameFull: Li, Haoran
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            NameFull: Long, Jiale
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            NameFull: Lu, Yuan
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            NameFull: Lin, Zihan
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          Name:
            NameFull: Zhou, Mingjue
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            – D: 01
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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              Value: 19
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              Value: 9
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            – TitleFull: Energies (19961073)
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