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

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

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.
Author Robert Baron (FMSE / DMD)
Robert Baron,,
- Division of Materials Design
, Tomasz Wejrzanowski (FMSE / DMD)
Tomasz Wejrzanowski,,
- Division of Materials Design
, Jarosław Milewski (FPAE / IHE)
Jarosław Milewski,,
- The Institute of Heat Engineering
, Łukasz Szabłowski (FPAE / IHE)
Łukasz Szabłowski,,
- The Institute of Heat Engineering
, Arkadiusz Szczęśniak (FPAE / IHE)
Arkadiusz Szczęśniak,,
- The Institute of Heat Engineering
, Fung Kuan-Zong
Fung Kuan-Zong,,
-
Journal seriesInternational Journal of Hydrogen Energy, ISSN 0360-3199, (A 30 pkt)
Issue year2018
Vol43
No13
Pages6696-6700
Publication size in sheets0.5
Keywords in EnglishMolten carbonate fuel cell Lithium aluminate Electrolyte matrix Planetary ball milling Tape casting
ASJC Classification2102 Energy Engineering and Power Technology; 3104 Condensed Matter Physics; 2103 Fuel Technology; 2105 Renewable Energy, Sustainability and the Environment
DOIDOI:10.1016/j.ijhydene.2018.02.085
URL https://www.sciencedirect.com/science/article/pii/S0360319918305020
Languageen angielski
File
Milewski 1-s2.0-S0360319918305020-main.pdf 1.19 MB
Score (nominal)35
ScoreMinisterial score = 30.0, 14-12-2018, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 14-12-2018, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.267; WoS Impact Factor: 2017 = 4.229 (2) - 2017=4.064 (5)
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