Fabrication-microstructure-performance relationships of reversible solid oxide fuel cell electrodes-review

S. Gamble

Research output: Contribution to journalReview articlepeer-review

33 Citations (Scopus)

Abstract

A reversible solid oxide fuel cell system can act as an energy storage device by storing energy in the form of hydrogen and heat, buffering intermittent supplies of renewable electricity such as tidal and wave generation. The most widely used electrodes for the cell are lanthanum strontium manganate-yttria stabilised zirconia and Ni-yttria stabilised zirconia. Their microstructure depends on the fabrication techniques, and determines their performance. The concept and efficiency of reversible solid oxide fuel cells are explained, along with cell geometry and microstructure. Electrode fabrication techniques such as screen printing, dip coating and extrusion are compared according to their advantages and disadvantages, and fuel cell system commercialisation is discussed. Modern techniques used to evaluate microstructure such as three-dimensional computer reconstruction from dual beam focused ion beam-scanning electron microscopy or X-ray computed tomography, and computer modelling are compared. Reversible cell electrode performance is measured using alternating current impedance on symmetrical and three electrode cells, and current/voltage curves on whole cells. Fuel cells and electrolysis cells have been studied extensively, but more work needs to be done to achieve a high performance, durable reversible cell and commercialise a system.

Original languageEnglish
Pages (from-to)1485-1497
Number of pages13
JournalMaterials Science and Technology
Volume27
Issue number10
DOIs
Publication statusPublished - Oct 2011

Keywords

  • Solid oxide fuel cells
  • Reviews
  • Tape casting
  • Microstructure
  • LSM-YSZ
  • 3-DIMENSIONAL RECONSTRUCTION
  • COMPOSITE CATHODES
  • SOFC ELECTRODES
  • ANODE
  • TEMPERATURE
  • ELECTROLYSIS
  • ZIRCONIA
  • LSM
  • POWDER
  • TOMOGRAPHY

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