Papers

Nov 15, 2023

Ultra-elevated power density and high energy efficiency of protonic ceramic fuel cells: Numerical and experimental results

Energy Conversion and Management
  • Kunpeng Li
  • ,
  • Hiroyuki Shimada
  • ,
  • Yasunobu Mizutani
  • ,
  • Yuji Okuyama
  • ,
  • Takuto Araki

Volume
296
Number
Language
Publishing type
Research paper (scientific journal)
DOI
10.1016/j.enconman.2023.117678

The fabrication of high-performance protonic ceramic fuel cells (PCFCs) and the accurate evaluation of their energy efficiency remain challenging because of electron–hole leakage. By combining an established numerical method with experiments, we developed high-performance chemically stable Ce-free PCFCs with a BaZr0.8Yb0.2O3−δ electrolyte that perform comparably to first-tier PCFCs, which typically employ Ce-containing electrolytes. To the best of our knowledge, this study is the first to numerically reproduce experimental performance over a wide range of temperatures, electrolyte thicknesses, and current densities. Importantly, our study can accurately predict the ultra-elevated performance of cells under different conditions without the need for conducting additional experiments (e.g., > 3.0 W·cm−2 power density or > 70% lower heating value energy efficiency)

Link information
DOI
https://doi.org/10.1016/j.enconman.2023.117678
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85172685674&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85172685674&origin=inward
ID information
  • DOI : 10.1016/j.enconman.2023.117678
  • ISSN : 0196-8904
  • SCOPUS ID : 85172685674

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