Protonic ceramic fuel cells with slurry-spin coated BaZr0.2Ce0.6Y0.1Yb0.1O3- δ thin-film electrolytes

Eun Heui Kang, Hyeon Rak Choi, Jong Seon Park, Keun Hee Kim, Dong Hwan Kim, Kiho Bae, Fritz B. Prinz, Joon Hyung Shim

Research output: Contribution to journalArticle

Abstract

In this study, we report the successful fabrication of thin-film proton ceramic fuel cells (PCFCs) using a slurry spin coating technique. BaZr0.2Ce0.6Y0.1Yb0.1O3-δ (BZCYYb) and PrBa0.5Sr0.5Co1.5Fe0.5O5+δ are used as the proton ceramic electrolyte and cathode material, respectively. All the active element layers, including the anode functional layers, electrolyte, and cathode, are fabricated by spin coating on the NiO-BZCYYb anode support pellet. The PCFCs exhibit reasonably high performance with peak power densities of 250–650 mW/cm2 at the intermediate temperature (IT) range of 500–600 °C, proving the cell production feasibility of spin coating. In this study, it is confirmed that the fabrication variables influence the morphological properties, such as grain sizes, demonstrating the improvement in charge transport rate and polarization performance of the cathode. The PCFCs also exhibit excellent long-term stability, with no apparent degradation for over 80 h. These results clearly show the spin coating method has great potential in the upcoming mass production of ceramic fuel cells, regarding its ease of manufacture and economy.

Original languageEnglish
Article number228254
JournalJournal of Power Sources
Volume465
DOIs
Publication statusPublished - 2020 Jul 31

Keywords

  • Ceramic fuel cell
  • Electrolyte
  • Protonic ceramic
  • Spin coating
  • Thin film

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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