Electrochemical behaviour and corrosion performance of Mg-Li-Al-Zn anodes with high Al composition

M. C. Lin; C. Y. Tsai; J. Y. Uan

doi:10.1016/j.corsci.2009.06.036

Electrochemical behaviour and corrosion performance of Mg-Li-Al-Zn anodes with high Al composition

M. C. Lin, C. Y. Tsai, J. Y. Uan

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

112 Citations (Scopus)

Abstract

This study investigated the electrochemical and corrosion performance of Mg-Li-Al-Zn anodes with Al compositions of ∼3 wt.% and ∼9 wt.%. Mg-Li-Al-Zn alloy with ∼9 wt.% Al had a relatively negative open-circuit potential and a high discharge voltage in MgCl₂ electrolyte, owing to the distribution of numerous AlLi particles in the matrix of the alloy. AlLi particles were believed to transform to Al particles during the corrosion of the Mg-Li-Al-Zn anode. The high-Al anode material exhibited good corrosion performance since a dense and continuous Mg(OH)₂/Al composite layer covered the surface of the high-Al anode. Experimentally, increasing the Li⁺ concentration in the electrolyte improved the corrosion performance of the Mg anode.

Original language	English
Pages (from-to)	2463-2472
Number of pages	10
Journal	Corrosion Science
Volume	51
Issue number	10
DOIs	https://doi.org/10.1016/j.corsci.2009.06.036
Publication status	Published - Oct 2009
Externally published	Yes

Keywords

A. Magnesium
B. Weight loss
C. Corrosion
Discharging test
Lithium

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science

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10.1016/j.corsci.2009.06.036

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title = "Electrochemical behaviour and corrosion performance of Mg-Li-Al-Zn anodes with high Al composition",

abstract = "This study investigated the electrochemical and corrosion performance of Mg-Li-Al-Zn anodes with Al compositions of ∼3 wt.% and ∼9 wt.%. Mg-Li-Al-Zn alloy with ∼9 wt.% Al had a relatively negative open-circuit potential and a high discharge voltage in MgCl2 electrolyte, owing to the distribution of numerous AlLi particles in the matrix of the alloy. AlLi particles were believed to transform to Al particles during the corrosion of the Mg-Li-Al-Zn anode. The high-Al anode material exhibited good corrosion performance since a dense and continuous Mg(OH)2/Al composite layer covered the surface of the high-Al anode. Experimentally, increasing the Li+ concentration in the electrolyte improved the corrosion performance of the Mg anode.",

keywords = "A. Magnesium, B. Weight loss, C. Corrosion, Discharging test, Lithium",

author = "Lin, {M. C.} and Tsai, {C. Y.} and Uan, {J. Y.}",

note = "Funding Information: The authors acknowledge the financial support of this work from the National Science Council of Taiwan, ROC under Grant No. NSC 97-2221-E-005-023. ",

year = "2009",

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doi = "10.1016/j.corsci.2009.06.036",

language = "English",

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journal = "Corrosion Science",

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TY - JOUR

T1 - Electrochemical behaviour and corrosion performance of Mg-Li-Al-Zn anodes with high Al composition

AU - Lin, M. C.

AU - Tsai, C. Y.

AU - Uan, J. Y.

N1 - Funding Information: The authors acknowledge the financial support of this work from the National Science Council of Taiwan, ROC under Grant No. NSC 97-2221-E-005-023.

PY - 2009/10

Y1 - 2009/10

N2 - This study investigated the electrochemical and corrosion performance of Mg-Li-Al-Zn anodes with Al compositions of ∼3 wt.% and ∼9 wt.%. Mg-Li-Al-Zn alloy with ∼9 wt.% Al had a relatively negative open-circuit potential and a high discharge voltage in MgCl2 electrolyte, owing to the distribution of numerous AlLi particles in the matrix of the alloy. AlLi particles were believed to transform to Al particles during the corrosion of the Mg-Li-Al-Zn anode. The high-Al anode material exhibited good corrosion performance since a dense and continuous Mg(OH)2/Al composite layer covered the surface of the high-Al anode. Experimentally, increasing the Li+ concentration in the electrolyte improved the corrosion performance of the Mg anode.

AB - This study investigated the electrochemical and corrosion performance of Mg-Li-Al-Zn anodes with Al compositions of ∼3 wt.% and ∼9 wt.%. Mg-Li-Al-Zn alloy with ∼9 wt.% Al had a relatively negative open-circuit potential and a high discharge voltage in MgCl2 electrolyte, owing to the distribution of numerous AlLi particles in the matrix of the alloy. AlLi particles were believed to transform to Al particles during the corrosion of the Mg-Li-Al-Zn anode. The high-Al anode material exhibited good corrosion performance since a dense and continuous Mg(OH)2/Al composite layer covered the surface of the high-Al anode. Experimentally, increasing the Li+ concentration in the electrolyte improved the corrosion performance of the Mg anode.

KW - A. Magnesium

KW - B. Weight loss

KW - C. Corrosion

KW - Discharging test

KW - Lithium

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DO - 10.1016/j.corsci.2009.06.036

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JO - Corrosion Science

JF - Corrosion Science

IS - 10

ER -

Electrochemical behaviour and corrosion performance of Mg-Li-Al-Zn anodes with high Al composition

Abstract

Keywords

ASJC Scopus subject areas

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