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Cutting-edge fabrication strategies and low-temperature sintering approaches for manufacturing solid oxide electrolysis cells AITranslate

1.School of Chemistry and Chemical Engineering, Faculty of Engineering & Physical Sciences, University of Surrey, Guildford GU2 7XH, UK
2.Advanced Technology Institute, Faculty of Engineering & Physical Sciences, University of Surrey, Guildford GU2 7XH, UK
3.Dyson School of Design Engineering, Faculty of Engineering, Imperial College London, London SW7 2AZ, UK
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Publisher: Youke Publish Co., Ltd.
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Abstract AITranslate

Steam electrolysers are a key technology for high-efficiency hydrogen production, offering superior thermodynamic performance compared with liquid-water electrolysis when operated at elevated temperatures. Despite these advantages, their wider deployment remains constrained by manufacturing complexity, component cost, and stringent processing requirements for ceramic membranes, electrodes, and interconnect-related components. This mini-review provides a comprehensive assessment of fabrication strategies relevant to steam-electrolyser manufacturing, encompassing compression-based forming, colloidal processing, fibre- and ink-based deposition techniques, as well as physical vapour deposition. Particular attention is given to how electrode architecture, cell geometry, and interfacial compatibility influence viable processing routes and manufacturability, rather than device operation at the single-cell level. Emphasis is placed on solid-state ceramic membranes and electrodes based on gadolinium-doped ceria (GDC) and yttria-stabilised zirconia (YSZ), which remain central to current and emerging steam-electrolyser technologies. Because most scalable fabrication routes ultimately depend on controlled densification and microstructural optimisation of polycrystalline ceramics, the review critically examines low-temperature sintering mechanisms, including grain-boundary-activated densification, transient liquid-phase formation, and nano-powder engineering. Recent advances in single- and multi-element sintering aids are discussed, with co-doping strategies shown to reduce densification temperatures by several hundred degrees while preserving ionic conductivity and long-term stability. A quantitative techno-environmental analysis further demonstrates that reducing electrolyte sintering temperatures from 1,400℃ to 650℃–950℃ can lower energy consumption by 30%–55%, reduce fabrication costs, and significantly decrease CO2 emissions associated with manufacturing. By integrating fabrication methodologies with low-temperature processing chemistry in a steam-electrolysis–relevant context, this review highlights the key materials–process interactions governing manufacturability and identifies future research directions for scalable, durable, and economically competitive steam-electrolyser technologies.

KeyWords AITranslate

electrolyte densification fabrication strategies low-temperature sintering sintering aids solid oxide electrolysis cell steam electrolysers

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Basic Information:

DOI:10.23919/CHAIN.2026.000009

Chinese Library Classification Number:

Citation Information:

Steam electrolysers are a key technology for high-efficiency hydrogen production, offering superior thermodynamic performance compared with liquid-water electrolysis when operated at elevated temperatures. Despite these advantages, their wider deployment remains constrained by manufacturing complexity, component cost, and stringent processing requirements for ceramic membranes, electrodes, and interconnect-related components. This mini-review provides a comprehensive assessment of fabrication strategies relevant to steam-electrolyser manufacturing, encompassing compression-based forming, colloidal processing, fibre- and ink-based deposition techniques, as well as physical vapour deposition. Particular attention is given to how electrode architecture, cell geometry, and interfacial compatibility influence viable processing routes and manufacturability, rather than device operation at the single-cell level. Emphasis is placed on solid-state ceramic membranes and electrodes based on gadolinium-doped ceria (GDC) and yttria-stabilised zirconia (YSZ), which remain central to current and emerging steam-electrolyser technologies. Because most scalable fabrication routes ultimately depend on controlled densification and microstructural optimisation of polycrystalline ceramics, the review critically examines low-temperature sintering mechanisms, including grain-boundary-activated densification, transient liquid-phase formation, and nano-powder engineering. Recent advances in single- and multi-element sintering aids are discussed, with co-doping strategies shown to reduce densification temperatures by several hundred degrees while preserving ionic conductivity and long-term stability. A quantitative techno-environmental analysis further demonstrates that reducing electrolyte sintering temperatures from 1,400℃ to 650℃–950℃ can lower energy consumption by 30%–55%, reduce fabrication costs, and significantly decrease CO2 emissions associated with manufacturing. By integrating fabrication methodologies with low-temperature processing chemistry in a steam-electrolysis–relevant context, this review highlights the key materials–process interactions governing manufacturability and identifies future research directions for scalable, durable, and economically competitive steam-electrolyser technologies.

quote

GB/T 7714-2015 [1] Yuheng Liu, Ming Xu, Kai Yang, et al. Cutting-edge fabrication strategies and low-temperature sintering approaches for manufacturing solid oxide electrolysis cells[J]. Chain, 2026, 3(2): 152-186. DOI:10.23919/CHAIN.2026.000009.
MLA [1] Yuheng Liu, et al., "Cutting-edge fabrication strategies and low-temperature sintering approaches for manufacturing solid oxide electrolysis cells." Chain, vol. 3, no. 2, 2026, pp. 152-186, https://doi.org/10.23919/CHAIN.2026.000009.
APA [1] Yuheng Liu, Ming Xu, Kai Yang, Wei Zhang, Yunlong Zhao, & Bahman Amini Horri. (2026). Cutting-edge fabrication strategies and low-temperature sintering approaches for manufacturing solid oxide electrolysis cells. Chain, 3(2), 152-186. https://doi.org/10.23919/CHAIN.2026.000009
IEEE [1] Yuheng Liu, Ming Xu, Kai Yang, Wei Zhang, Yunlong Zhao, and Bahman Amini Horri, "Cutting-edge fabrication strategies and low-temperature sintering approaches for manufacturing solid oxide electrolysis cells," Chain, vol. 3, no. 2, pp. 152-186, 2026, doi: 10.23919/CHAIN.2026.000009. keywords: {electrolyte densification;fabrication strategies;low-temperature sintering;sintering aids;solid oxide electrolysis cell;steam electrolysers}