Manufacturing of Γ-LiAlO2 matrix for molten carbonate fuel cell by high-energy milling

Robert Baron, Tomasz Wejrzanowski, Jarosław Milewski, Łukasz Szabłowski, Arkadiusz Szczęśniak, Kuan Zong Fung

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Molten carbonate fuel cells (MCFCs) are promising high temperature power generating devices. However, unlike solid oxide fuel cells (SOFCs) they utilize a liquid electrolyte which must be immobilized in a porous matrix. In this paper, a slurry composition for lithium aluminate (γ-LiAlO2) matrix was developed and green matrices were subsequently formed by the tape casting method. In order to achieve the desired structure of the matrix (pore size, porosity) γ-LiAlO2 powder was milled in a planetary ball mill for 18 h with a solvent, dispersant and defoamer. After this step, other ingredients were added, including a binder and plasticizer to obtain optimal rheology of the slurry. Cell tests confirmed optimal performance of the matrix compared to the third party reference γ-LiAlO2 matrices. Burned out matrix was characterized by scanning electron microscopy (SEM) and laser diffraction in order to determine the γ-LiAlO2 powder particle size and morphology. The results show that high-energy milling enabled a fine pore structure and high specific surface area of the matrix to be obtained in a relatively short time, compared to conventional fabrication routes. The matrix structure obtained within this study is suitable for high performance operation of MCFC.

Original languageEnglish
Pages (from-to)6696-6700
Number of pages5
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number13
DOIs
Publication statusPublished - 2018 Mar 29

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molten carbonate fuel cells
Molten carbonate fuel cells (MCFC)
Mechanical alloying
manufacturing
Powders
Ball mills
Plasticizers
matrices
Pore structure
Solid oxide fuel cells (SOFC)
Rheology
Specific surface area
Tapes
Pore size
Binders
Casting
Lithium
Porosity
Diffraction
Particle size

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Baron, Robert ; Wejrzanowski, Tomasz ; Milewski, Jarosław ; Szabłowski, Łukasz ; Szczęśniak, Arkadiusz ; Fung, Kuan Zong. / Manufacturing of Γ-LiAlO2 matrix for molten carbonate fuel cell by high-energy milling. In: International Journal of Hydrogen Energy. 2018 ; Vol. 43, No. 13. pp. 6696-6700.
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Manufacturing of Γ-LiAlO2 matrix for molten carbonate fuel cell by high-energy milling. / Baron, Robert; Wejrzanowski, Tomasz; Milewski, Jarosław; Szabłowski, Łukasz; Szczęśniak, Arkadiusz; Fung, Kuan Zong.

In: International Journal of Hydrogen Energy, Vol. 43, No. 13, 29.03.2018, p. 6696-6700.

Research output: Contribution to journalArticle

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