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Multiphysics-Driven Structural Optimization of Flat-Tube Solid Oxide Electrolysis Cells to Enhance Hydrogen Production Efficiency and Thermal Stress Resistance

Author

Listed:
  • Shanshan Liang

    (College of Engineering Science and Technology, Shanghai Ocean University, Shanghai 201306, China)

  • Jingxiang Xu

    (College of Engineering Science and Technology, Shanghai Ocean University, Shanghai 201306, China
    Shanghai Engineering Research Center of Marine Renewable Energy, Shanghai 201306, China)

  • Yunfeng Liao

    (College of Engineering Science and Technology, Shanghai Ocean University, Shanghai 201306, China)

  • Yu Zhao

    (College of Engineering Science and Technology, Shanghai Ocean University, Shanghai 201306, China)

  • Haibo Huo

    (College of Engineering Science and Technology, Shanghai Ocean University, Shanghai 201306, China)

  • Zhenhua Chu

    (College of Engineering Science and Technology, Shanghai Ocean University, Shanghai 201306, China)

Abstract

The solid oxide electrolysis cell (SOEC) has potential application value in water electrolysis for hydrogen production. Here, we propose an integrated multi-scale optimization framework for the SOEC, addressing critical challenges in microstructure–property correlation and thermo-mechanical reliability. By establishing quantitative relationships between fuel support layer thickness, air electrode rib coverage, and Ni-YSZ volume ratio, we reveal their nonlinear coupling effects on the hydrogen production rate and thermal stress. The results show that when the fuel support layer thickness increases, the maximum principal stress of the fuel electrode decreases, and the hydrogen production rate and diffusion flux first increase and then decrease. The performance is optimal when the fuel support layer thickness is 5.4 mm. As the rib area decreases, the hydrogen production rate and thermal stress gradually decrease, but the oxygen concentration distribution becomes more uniform when the rib area portion is 42%. When the Ni volume fraction increases, the hydrogen production rate and the maximum principal stress gradually increase, but the uniformity of H 2 O flow decreases. When the Ni volume fraction is lower than 50%, the uniformity of H 2 O flow drops to 20%. As the volume fraction of nickel (Ni) increases, the fuel utilization gradually increases. When the volume fraction of Ni is between 50% and 60%, the fuel utilization reaches the range of 60–80%. This study indicates that the fuel support layer thickness, rib area, and Ni-YSZ ratio have different effects on the overall performance of the SOEC, providing guidance for the optimization of the flat-tube SOEC structure.

Suggested Citation

  • Shanshan Liang & Jingxiang Xu & Yunfeng Liao & Yu Zhao & Haibo Huo & Zhenhua Chu, 2025. "Multiphysics-Driven Structural Optimization of Flat-Tube Solid Oxide Electrolysis Cells to Enhance Hydrogen Production Efficiency and Thermal Stress Resistance," Energies, MDPI, vol. 18(10), pages 1-22, May.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:10:p:2449-:d:1652907
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    References listed on IDEAS

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    1. Yingqi Liu & Liusheng Xiao & Hao Wang & Dingrong Ou & Jinliang Yuan, 2024. "Numerical Study of H 2 Production and Thermal Stress for Solid Oxide Electrolysis Cells with Various Ribs/Channels," Energies, MDPI, vol. 17(2), pages 1-26, January.
    2. Youchan Kim & Kisung Lim & Hassan Salihi & Seongku Heo & Hyunchul Ju, 2023. "The Effects of Stack Configurations on the Thermal Management Capabilities of Solid Oxide Electrolysis Cells," Energies, MDPI, vol. 17(1), pages 1-20, December.
    3. Xu, Qidong & Xia, Lingchao & He, Qijiao & Guo, Zengjia & Ni, Meng, 2021. "Thermo-electrochemical modelling of high temperature methanol-fuelled solid oxide fuel cells," Applied Energy, Elsevier, vol. 291(C).
    4. Xia, Lingchao & Ni, Meng & He, Qijiao & Xu, Qidong & Cheng, Chun, 2021. "Optimization of gas diffusion layer in high temperature PEMFC with the focuses on thickness and porosity," Applied Energy, Elsevier, vol. 300(C).
    5. Wang, Jiatang & Zhang, Houcheng & Cai, Weiwei & Ye, Weiqiang & Tong, Yiheng & Cheng, Hansong, 2023. "Effect of varying rib area portions on the performance of PEM fuel cells: Insights into design and optimization," Renewable Energy, Elsevier, vol. 217(C).
    6. Liu, Zhao & Han, Beibei & Lu, Zhiyi & Guan, Wanbing & Li, Yuanyuan & Song, Changjiang & Chen, Liang & Singhal, Subhash C., 2021. "Efficiency and stability of hydrogen production from seawater using solid oxide electrolysis cells," Applied Energy, Elsevier, vol. 300(C).
    7. Liu, Chang & Dang, Zheng & Xi, Guang, 2024. "Numerical study on thermal stress of solid oxide electrolyzer cell with various flow configurations," Applied Energy, Elsevier, vol. 353(PA).
    8. Xu, Haoran & Chen, Bin & Liu, Jiang & Ni, Meng, 2016. "Modeling of direct carbon solid oxide fuel cell for CO and electricity cogeneration," Applied Energy, Elsevier, vol. 178(C), pages 353-362.
    9. Sun, Yi & Hu, Xiongfeng & Gao, Jun & Han, Yu & Sun, Anwei & Zheng, Nan & Shuai, Wei & Xiao, Gang & Guo, Meiting & Ni, Meng & Xu, Haoran, 2022. "Solid oxide electrolysis cell under real fluctuating power supply with a focus on thermal stress analysis," Energy, Elsevier, vol. 261(PA).
    10. Hao Wang & Liusheng Xiao & Yingqi Liu & Xueping Zhang & Ruidong Zhou & Fangzheng Liu & Jinliang Yuan, 2023. "Performance and Thermal Stress Evaluation of Full-Scale SOEC Stack Using Multi-Physics Modeling Method," Energies, MDPI, vol. 16(23), pages 1-20, November.
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