Using aluminum and Li2CO3 particles to reinforce the α-LiAlO2 matrix for molten carbonate fuel cells

Jin Eok Kim; Kailash Yashvant Patil; Jonghee Han; Sung Pil Yoon; Suk Woo Nam; Tae Hoon Lim; Seong Ahn Hong; Hansung Kim; Hee Chun Lim

doi:10.1016/j.ijhydene.2009.08.069

Using aluminum and Li₂CO₃ particles to reinforce the α-LiAlO₂ matrix for molten carbonate fuel cells

Jin Eok Kim, Kailash Yashvant Patil, Jonghee Han, Sung Pil Yoon, Suk Woo Nam, Tae Hoon Lim, Seong Ahn Hong, Hansung Kim, Hee Chun Lim

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

The electrolyte substrate (matrix) of a molten carbonate fuel cell (MCFC) provides both ionic conduction and gas sealing. During the starting-up and operating of MCFC stacks at 923 K, the matrix can experience mechanical stresses that can cause cracking. In particular, the pure α-LiAlO₂ that is generally used for the MCFC possesses poor mechanical strength. In this study, we employed Al and Li₂CO₃ particles as reinforcement materials to increase the mechanical strength of the α-LiAlO₂ matrix for its stable long-term operation. The mechanical strength of the matrix increased dramatically after adding Al particles into the pure matrix. Moreover, we operated a single cell for 2000 h after adding Li₂CO₃ particles into the Al-reinforced matrix to prevent a Li-ion shortage caused by a lithiated Al reaction in the matrix.

Original language	English
Pages (from-to)	9227-9232
Number of pages	6
Journal	International Journal of Hydrogen Energy
Volume	34
Issue number	22
DOIs	https://doi.org/10.1016/j.ijhydene.2009.08.069
Publication status	Published - 2009 Nov

ASJC Scopus subject areas

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.ijhydene.2009.08.069

Cite this

@article{d297a08c4c9745ca9644e918dbcbd0ba,

title = "Using aluminum and Li2CO3 particles to reinforce the α-LiAlO2 matrix for molten carbonate fuel cells",

abstract = "The electrolyte substrate (matrix) of a molten carbonate fuel cell (MCFC) provides both ionic conduction and gas sealing. During the starting-up and operating of MCFC stacks at 923 K, the matrix can experience mechanical stresses that can cause cracking. In particular, the pure α-LiAlO2 that is generally used for the MCFC possesses poor mechanical strength. In this study, we employed Al and Li2CO3 particles as reinforcement materials to increase the mechanical strength of the α-LiAlO2 matrix for its stable long-term operation. The mechanical strength of the matrix increased dramatically after adding Al particles into the pure matrix. Moreover, we operated a single cell for 2000 h after adding Li2CO3 particles into the Al-reinforced matrix to prevent a Li-ion shortage caused by a lithiated Al reaction in the matrix.",

author = "Kim, {Jin Eok} and Patil, {Kailash Yashvant} and Jonghee Han and Yoon, {Sung Pil} and Nam, {Suk Woo} and Lim, {Tae Hoon} and Hong, {Seong Ahn} and Hansung Kim and Lim, {Hee Chun}",

note = "Funding Information: This study was supported financially by the Korea Electric Power Research Institute. ",

year = "2009",

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doi = "10.1016/j.ijhydene.2009.08.069",

language = "English",

volume = "34",

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journal = "International Journal of Hydrogen Energy",

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publisher = "Elsevier Limited",

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T1 - Using aluminum and Li2CO3 particles to reinforce the α-LiAlO2 matrix for molten carbonate fuel cells

AU - Kim, Jin Eok

AU - Patil, Kailash Yashvant

AU - Han, Jonghee

AU - Yoon, Sung Pil

AU - Nam, Suk Woo

AU - Lim, Tae Hoon

AU - Hong, Seong Ahn

AU - Kim, Hansung

AU - Lim, Hee Chun

N1 - Funding Information: This study was supported financially by the Korea Electric Power Research Institute.

PY - 2009/11

Y1 - 2009/11

N2 - The electrolyte substrate (matrix) of a molten carbonate fuel cell (MCFC) provides both ionic conduction and gas sealing. During the starting-up and operating of MCFC stacks at 923 K, the matrix can experience mechanical stresses that can cause cracking. In particular, the pure α-LiAlO2 that is generally used for the MCFC possesses poor mechanical strength. In this study, we employed Al and Li2CO3 particles as reinforcement materials to increase the mechanical strength of the α-LiAlO2 matrix for its stable long-term operation. The mechanical strength of the matrix increased dramatically after adding Al particles into the pure matrix. Moreover, we operated a single cell for 2000 h after adding Li2CO3 particles into the Al-reinforced matrix to prevent a Li-ion shortage caused by a lithiated Al reaction in the matrix.

AB - The electrolyte substrate (matrix) of a molten carbonate fuel cell (MCFC) provides both ionic conduction and gas sealing. During the starting-up and operating of MCFC stacks at 923 K, the matrix can experience mechanical stresses that can cause cracking. In particular, the pure α-LiAlO2 that is generally used for the MCFC possesses poor mechanical strength. In this study, we employed Al and Li2CO3 particles as reinforcement materials to increase the mechanical strength of the α-LiAlO2 matrix for its stable long-term operation. The mechanical strength of the matrix increased dramatically after adding Al particles into the pure matrix. Moreover, we operated a single cell for 2000 h after adding Li2CO3 particles into the Al-reinforced matrix to prevent a Li-ion shortage caused by a lithiated Al reaction in the matrix.

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