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Electrochemical Energy Reviews ›› 2025, Vol. 8 ›› Issue (2): 11-.doi: 10.1007/s41918-025-00246-z

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Recent Advances in Solid Oxide Electrolysis Cells for Solar Energy Conversion

Chen-Ge Chen1, Chenyu Xu1, Peng-Fei Sui2, Guangyu Deng1, Yi-Cheng Wang2, Jinhao Mei1, Entao Zhang1, Yanwei Zhang1, Jing-Li Luo2   

  1. 1. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, Zhejiang, China;
    2. Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
  • 收稿日期:2024-09-23 修回日期:2025-01-23 出版日期:2025-06-20 发布日期:2025-11-12
  • 通讯作者: Chenyu Xu Email:E-mail:mrxcy@zju.edu.cn;Yanwei Zhang Email:E-mail:zhangyw@zju.edu.cn;Jing-Li Luo Email:E-mail:jingli.luo@ualberta.ca E-mail:mrxcy@zju.edu.cn;zhangyw@zju.edu.cn;jingli.luo@ualberta.ca
  • 基金资助:
    This work was financially supported by the National Natural Science Foundation of China (Grant No. 52341602), the Zhejiang Provincial Natural Science Foundation of China under Grant No. LQ24E060001 and Grant No. LDT23E06014E06, Fundamental Research Funds for the Central Universities (Grant No. 2022ZFJH04). This research was also supported by funding from the Canada First Research Excellence Fund (CFREF-2015-00001) as part of the University of Alberta's Future Energy Systems research initiative (FES-T02-P03). The authors gratefully acknowledge this support.

Recent Advances in Solid Oxide Electrolysis Cells for Solar Energy Conversion

Chen-Ge Chen1, Chenyu Xu1, Peng-Fei Sui2, Guangyu Deng1, Yi-Cheng Wang2, Jinhao Mei1, Entao Zhang1, Yanwei Zhang1, Jing-Li Luo2   

  1. 1. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, Zhejiang, China;
    2. Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
  • Received:2024-09-23 Revised:2025-01-23 Online:2025-06-20 Published:2025-11-12
  • Contact: Chenyu Xu Email:E-mail:mrxcy@zju.edu.cn;Yanwei Zhang Email:E-mail:zhangyw@zju.edu.cn;Jing-Li Luo Email:E-mail:jingli.luo@ualberta.ca E-mail:mrxcy@zju.edu.cn;zhangyw@zju.edu.cn;jingli.luo@ualberta.ca
  • Supported by:
    This work was financially supported by the National Natural Science Foundation of China (Grant No. 52341602), the Zhejiang Provincial Natural Science Foundation of China under Grant No. LQ24E060001 and Grant No. LDT23E06014E06, Fundamental Research Funds for the Central Universities (Grant No. 2022ZFJH04). This research was also supported by funding from the Canada First Research Excellence Fund (CFREF-2015-00001) as part of the University of Alberta's Future Energy Systems research initiative (FES-T02-P03). The authors gratefully acknowledge this support.

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摘要： To implement global energy transitions, the efficient utilization of clean energy plays a central role in the process and has become an imperative task. Among various approaches, solid oxide electrolysis cells (SOECs) stand out as exceptional energy conversion devices because of their ability to transform thermal and electrical energy into chemical energy. For example, solar energy is a clean and renewable energy source and can be effectively harnessed to power SOECs, thereby facilitating efficient conversion from solar to chemical energy. In light of the growing interest in leveraging SOECs for solar energy conversion, a systematic collation and comprehensive review of the relevant studies reported thus far have yet to be conducted. This review summarizes and analyzes recent advances in the field of SOECs, including their fundamentals, performance metrics, current status, and methods of integration with solar energy. It also proposes various optimization strategies for the existing integration of solar energy with SOEC systems, with a specific emphasis on full-spectrum utilization. Finally, this study provides a perspective on the future development and challenges for SOECs in the context of solar energy conversion.

关键词: SOEC, Solar energy, Energy efficiency, Energy conversion, Solar energy integration, Hydrogen

Abstract: To implement global energy transitions, the efficient utilization of clean energy plays a central role in the process and has become an imperative task. Among various approaches, solid oxide electrolysis cells (SOECs) stand out as exceptional energy conversion devices because of their ability to transform thermal and electrical energy into chemical energy. For example, solar energy is a clean and renewable energy source and can be effectively harnessed to power SOECs, thereby facilitating efficient conversion from solar to chemical energy. In light of the growing interest in leveraging SOECs for solar energy conversion, a systematic collation and comprehensive review of the relevant studies reported thus far have yet to be conducted. This review summarizes and analyzes recent advances in the field of SOECs, including their fundamentals, performance metrics, current status, and methods of integration with solar energy. It also proposes various optimization strategies for the existing integration of solar energy with SOEC systems, with a specific emphasis on full-spectrum utilization. Finally, this study provides a perspective on the future development and challenges for SOECs in the context of solar energy conversion.

Key words: SOEC, Solar energy, Energy efficiency, Energy conversion, Solar energy integration, Hydrogen

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