Protonic ceramic electrochemical cells (PCECs) have the potential to operate below 450 °C, but their performance is poor at such temperatures. Through the development of a low-resistance electrolyte and the in situ formation of a composite positive electrode, a PCEC with good fuel cell and electrolysis cell performance at <450 °C is demonstrated.
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References
Gorte, R. J. Cooling down ceramic fuel cells. Science 349, 1290–1290 (2015). A perspective article that highlights the motivation for lowering the operating temperature of ceramic fuel cells.
Duan, C. et al. Readily processed protonic ceramic fuel cells with high performance at low temperatures. Science 349, 1321–1326 (2015). This paper reports low-temperature protonic ceramic fuel cells with high performance and long-term stability.
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This is a summary of: Liu, F. et al. Lowering the operating temperature of protonic ceramic electrochemical cells to <450 °C. Nat. Energy https://doi.org/10.1038/s41560-023-01350-4 (2023).
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Ceramic electrochemical cells that operate at temperatures below 450 °C. Nat Energy 8, 1071–1072 (2023). https://doi.org/10.1038/s41560-023-01352-2
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DOI: https://doi.org/10.1038/s41560-023-01352-2
