Challenges in practical button cell testing for hydrogen production from high temperature electrolysis of water

Frontiers in Energy Research

Energy Research

Gang Wu¹  Lucun Wang²  Nicholas J. Kane²  Jeremy L. Hartvigsen²  Joshua Y. Gomez²  Frederick F. Stewart²  Dong Ding²  Micah J. Casteel²  Cameron M. Priest³ 

[1] Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY, United States;Idaho National Laboratory, Idaho Falls, ID, United States;Idaho National Laboratory, Idaho Falls, ID, United States;Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY, United States;

关键词: water electrolysis;    solid oxide electrolysis cell;    high temperature;    button cell;    oxygen ion conducting;    standard operating procedure;   

DOI  :  10.3389/fenrg.2023.1278203

 received in 2023-08-15, accepted in 2023-09-04,  发布年份 2023

来源: Frontiers

【 摘 要 】

High temperature electrolysis of water using solid oxide electrochemical cells (SOEC) is a promising technology for hydrogen production with high energy efficiency and may promote decarbonization when coupled with renewable energy sources and excess heat from nuclear reactors. Over the past several decades there have been extensive scientific and engineering studies on cell materials and degradation behaviors that have greatly improved current density, decreased total resistance, and lowered degradation rates. Although the technology is now at a near-commercial level, maintaining consistency in cell testing and minimizing variance in practical testing environments is an often overlooked but crucial topic. To promote high quality data collection, testing procedures and balance of plant component details are extremely important to consider. This work discusses some key factors affecting the reproducibility of practical SOEC testing on the button cell level, namely, current collection layers, cell sealing procedures, the reliability of steam and hydrogen delivery systems, cell testing fixture design, and reduction procedures. To provide a baseline and a level of standardization for the SOEC community, this work also discloses details of the standard operating procedure and techniques adopted for o-SOEC testing at Idaho National Laboratory (INL).

【 授权许可】

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Copyright © 2023 Priest, Gomez, Kane, Hartvigsen, Wang, Ding, Casteel, Stewart and Wu.