Development and characterization of highly stable electrode inks for low-temperature ceramic fuel cells

Sanaz Zarabi Golkhatmi, Muhammad Imran Asghar*, Peter D. Lund

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)
74 Downloads (Pure)

Abstract

Inkjet printing is a potential contactless and mask-free additive manufacturing approach for solid oxide fuel cells. Here, a highly stable cathode ink using La0.6Sr0.4Co0.2Fe0.8O3 was developed and characterized with particle size analysis, viscosity, surface tension, density, and thermal analysis. Both fresh and 6-months stored inks showed excellent jetability behavior with a Z number of 2.77 and 3.45, respectively. The ink was successfully inkjet-printed on a (LiNaK)2CO3-Gd:CeO2 porous electrolyte substrate to fabricate a symmetric cell. The electrochemical impedance spectroscopy measurements showed that at 550 °C the inkjet printing lowered the ohmic resistance to one-third (from 1.05 Ω cm2 to 0.37 Ω cm2) and the mass diffusion resistance by 4.25 times (from 6.09 Ω cm2 to 1.43 Ω cm2) as compared to drop-casted cell by creating a hierarchical porous structure and increasing reaction sites. Successful inkjet printing of the functional electrode material opens up a new avenue for the fabrication of the low-temperature ceramic fuel cells.

Original languageEnglish
Article number232263
Pages (from-to)1-10
Number of pages10
JournalJournal of Power Sources
Volume552
DOIs
Publication statusPublished - 30 Dec 2022
MoE publication typeA1 Journal article-refereed

Keywords

  • Ceramics
  • Electrode
  • Inkjet printing
  • Solid oxide fuel cell
  • Stability

Fingerprint

Dive into the research topics of 'Development and characterization of highly stable electrode inks for low-temperature ceramic fuel cells'. Together they form a unique fingerprint.

Cite this