Rapid laser reactive sintering of BaCe0.7Zr0.1Y0.1Yb0.1O3-δ electrolyte for protonic ceramic fuel cells

Shenglong Mu, Hua Huang, Akihiro Ishii, Zeyu Zhao, Minda Zou, Patrick Kuzbary, Fei Peng, Kyle S. Brinkman, Hai Xiao, Jianhua Tong

Research output: Contribution to journalArticlepeer-review

Abstract

The state-of-the-art protonic ceramic electrolyte BaCe0.7Zr0.1Y0.1Yb0.1O3-δ (BCZYYb) dense films were successfully deposited on the pre-sintered Ni(O)+BCZYYb anode substrate by recently developed rapid laser reactive sintering (RLRS) method. The separation of the deposition of dense electrolyte from the preparation of porous anode makes it possible to manufacture protonic ceramic fuel cells (PCFCs) with more desirable electrolyte and anode microstructures. The PCFC single cells prepared after introducing the cathode thin film BaCo0.4Fe0.4Zr0.1Y0.1O3-δ (BCFZY0.1) showed OCVs of 0.94–0.97V and peak power densities of 97 mW/cm2 at 600 °C and 121 mW/cm2 at 600–650 °C under Air/H2 gradient. The proton conductivity of the BCZYYb film derived the RLRS-derived single cell showed a moderate proton conductivity of 3.7 × 10−3S/cm at 600 °C. The higher PCFC performance can be expected by further optimization of the thickness, compositions, and/or microstructures of the component layers.

Original languageEnglish
Article number100017
JournalJournal of Power Sources Advances
Volume4
DOIs
Publication statusPublished - 2020 Aug

Keywords

  • Fuel cells
  • Laser sintering
  • Protonic ceramics
  • Reactive sintering

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrochemistry
  • Materials Chemistry

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