The effect of lithium addition on aluminum-reinforced α-LiAlO 2 matrices for molten carbonate fuel cells

Kailash Yashvant Patil, Sung Pil Yoon, Jonghee Han, Tae Hoon Lim, SukWoo Nam, In Hwan Oh

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The effect of lithium hydroxide (LiOH) addition as a lithium source is discussed as a way to prevent Li-ion shortages in aluminum-based α-LiAlO 2 matrices of molten carbonate fuel cells. Our results show that the use of LiOH as a lithium source to prevent a Li-ion shortage caused by a lithiated Al-reaction during the operation of the cell allows for more stable performance and greater durability than when lithium carbonate (Li 2CO 3) is used as the lithium source. The behavior of high-lithium content mixtures is attributed to the presence of reactive aluminum particles, which promote the formation of lithium aluminate (LiAlO 2) phases at 650 °C. The incorporation of low-melting-point lithium and an efficient pathway to the aluminum in a reinforced matrix has improved the in-situ mechanical strength via the lithiated Al-reaction, and they do not lead to any noticeable loss in cell performance, even after 4000 h of operation. From the post-test results, the cell with LiOH stored in the cathode channel shows effective formation of the stable crystalline phase of α-LiAlO 2 and enhancement of the mechanical strength during cell operation.

Original languageEnglish
Pages (from-to)6237-6247
Number of pages11
JournalInternational Journal of Hydrogen Energy
Volume36
Issue number10
DOIs
Publication statusPublished - 2011 May 1
Externally publishedYes

Fingerprint

molten carbonate fuel cells
Molten carbonate fuel cells (MCFC)
Lithium
lithium
aluminum
Aluminum
matrices
cells
Strength of materials
lithium hydroxides
durability
Ions
melting points
carbonates
ions
Melting point
cathodes
Carbonates
Durability
Cathodes

Keywords

  • Al-particles reinforced matrix
  • Lithium shortage
  • Molten carbonate fuel cell
  • Reinforced α-lithium aluminate matrix

ASJC Scopus subject areas

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

Cite this

The effect of lithium addition on aluminum-reinforced α-LiAlO 2 matrices for molten carbonate fuel cells. / Patil, Kailash Yashvant; Yoon, Sung Pil; Han, Jonghee; Lim, Tae Hoon; Nam, SukWoo; Oh, In Hwan.

In: International Journal of Hydrogen Energy, Vol. 36, No. 10, 01.05.2011, p. 6237-6247.

Research output: Contribution to journalArticle

Patil, Kailash Yashvant ; Yoon, Sung Pil ; Han, Jonghee ; Lim, Tae Hoon ; Nam, SukWoo ; Oh, In Hwan. / The effect of lithium addition on aluminum-reinforced α-LiAlO 2 matrices for molten carbonate fuel cells. In: International Journal of Hydrogen Energy. 2011 ; Vol. 36, No. 10. pp. 6237-6247.
@article{d146f163dcdc4339ae5d29bd7cbf0e50,
title = "The effect of lithium addition on aluminum-reinforced α-LiAlO 2 matrices for molten carbonate fuel cells",
abstract = "The effect of lithium hydroxide (LiOH) addition as a lithium source is discussed as a way to prevent Li-ion shortages in aluminum-based α-LiAlO 2 matrices of molten carbonate fuel cells. Our results show that the use of LiOH as a lithium source to prevent a Li-ion shortage caused by a lithiated Al-reaction during the operation of the cell allows for more stable performance and greater durability than when lithium carbonate (Li 2CO 3) is used as the lithium source. The behavior of high-lithium content mixtures is attributed to the presence of reactive aluminum particles, which promote the formation of lithium aluminate (LiAlO 2) phases at 650 °C. The incorporation of low-melting-point lithium and an efficient pathway to the aluminum in a reinforced matrix has improved the in-situ mechanical strength via the lithiated Al-reaction, and they do not lead to any noticeable loss in cell performance, even after 4000 h of operation. From the post-test results, the cell with LiOH stored in the cathode channel shows effective formation of the stable crystalline phase of α-LiAlO 2 and enhancement of the mechanical strength during cell operation.",
keywords = "Al-particles reinforced matrix, Lithium shortage, Molten carbonate fuel cell, Reinforced α-lithium aluminate matrix",
author = "Patil, {Kailash Yashvant} and Yoon, {Sung Pil} and Jonghee Han and Lim, {Tae Hoon} and SukWoo Nam and Oh, {In Hwan}",
year = "2011",
month = "5",
day = "1",
doi = "10.1016/j.ijhydene.2011.01.161",
language = "English",
volume = "36",
pages = "6237--6247",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier Limited",
number = "10",

}

TY - JOUR

T1 - The effect of lithium addition on aluminum-reinforced α-LiAlO 2 matrices for molten carbonate fuel cells

AU - Patil, Kailash Yashvant

AU - Yoon, Sung Pil

AU - Han, Jonghee

AU - Lim, Tae Hoon

AU - Nam, SukWoo

AU - Oh, In Hwan

PY - 2011/5/1

Y1 - 2011/5/1

N2 - The effect of lithium hydroxide (LiOH) addition as a lithium source is discussed as a way to prevent Li-ion shortages in aluminum-based α-LiAlO 2 matrices of molten carbonate fuel cells. Our results show that the use of LiOH as a lithium source to prevent a Li-ion shortage caused by a lithiated Al-reaction during the operation of the cell allows for more stable performance and greater durability than when lithium carbonate (Li 2CO 3) is used as the lithium source. The behavior of high-lithium content mixtures is attributed to the presence of reactive aluminum particles, which promote the formation of lithium aluminate (LiAlO 2) phases at 650 °C. The incorporation of low-melting-point lithium and an efficient pathway to the aluminum in a reinforced matrix has improved the in-situ mechanical strength via the lithiated Al-reaction, and they do not lead to any noticeable loss in cell performance, even after 4000 h of operation. From the post-test results, the cell with LiOH stored in the cathode channel shows effective formation of the stable crystalline phase of α-LiAlO 2 and enhancement of the mechanical strength during cell operation.

AB - The effect of lithium hydroxide (LiOH) addition as a lithium source is discussed as a way to prevent Li-ion shortages in aluminum-based α-LiAlO 2 matrices of molten carbonate fuel cells. Our results show that the use of LiOH as a lithium source to prevent a Li-ion shortage caused by a lithiated Al-reaction during the operation of the cell allows for more stable performance and greater durability than when lithium carbonate (Li 2CO 3) is used as the lithium source. The behavior of high-lithium content mixtures is attributed to the presence of reactive aluminum particles, which promote the formation of lithium aluminate (LiAlO 2) phases at 650 °C. The incorporation of low-melting-point lithium and an efficient pathway to the aluminum in a reinforced matrix has improved the in-situ mechanical strength via the lithiated Al-reaction, and they do not lead to any noticeable loss in cell performance, even after 4000 h of operation. From the post-test results, the cell with LiOH stored in the cathode channel shows effective formation of the stable crystalline phase of α-LiAlO 2 and enhancement of the mechanical strength during cell operation.

KW - Al-particles reinforced matrix

KW - Lithium shortage

KW - Molten carbonate fuel cell

KW - Reinforced α-lithium aluminate matrix

UR - http://www.scopus.com/inward/record.url?scp=79955482388&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79955482388&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2011.01.161

DO - 10.1016/j.ijhydene.2011.01.161

M3 - Article

AN - SCOPUS:79955482388

VL - 36

SP - 6237

EP - 6247

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 10

ER -