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Title: Revisiting the Corrosion of the Aluminum Current Collector in Lithium-Ion Batteries

Abstract

The corrosion of aluminum current collectors and the oxidation of solvents at a relatively high potential have been widely investigated with an aim to stabilize the electrochemical performance of lithium-ion batteries using such components. The corrosion behavior of aluminum current collectors was revisited using a home-build high-precision electrochemical measurement system, and the impact of electrolyte components and the surface protection layer on aluminum foil was systematically studied. The electrochemical results showed that the corrosion of aluminum foil was triggered by the electrochemical oxidation of solvent molecules, like ethylene carbonate, at a relative high potential. The organic radical cations generated from the electrochemical oxidation are energetically unstable, and readily undergo a deprotonation reaction that generates protons and promote the dissolution of Al3+ from the aluminum foil. This new reaction mechanism can also shed light on the dissolution of transitional metal at high potentials.

Authors:
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Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1353326
Report Number(s):
PNNL-SA-125564
Journal ID: ISSN 1948-7185; 49321; VT1201000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Physical Chemistry Letters; Journal Volume: 8; Journal Issue: 5
Country of Publication:
United States
Language:
English
Subject:
Environmental Molecular Sciences Laboratory

Citation Formats

Ma, Tianyuan, Xu, Gui-Liang, Li, Yan, Wang, Li, He, Xiangming, Zheng, Jianming, Liu, Jun, Engelhard, Mark H., Zapol, Peter, Curtiss, Larry A., Jorne, Jacob, Amine, Khalil, and Chen, Zonghai. Revisiting the Corrosion of the Aluminum Current Collector in Lithium-Ion Batteries. United States: N. p., 2017. Web. doi:10.1021/acs.jpclett.6b02933.
Ma, Tianyuan, Xu, Gui-Liang, Li, Yan, Wang, Li, He, Xiangming, Zheng, Jianming, Liu, Jun, Engelhard, Mark H., Zapol, Peter, Curtiss, Larry A., Jorne, Jacob, Amine, Khalil, & Chen, Zonghai. Revisiting the Corrosion of the Aluminum Current Collector in Lithium-Ion Batteries. United States. doi:10.1021/acs.jpclett.6b02933.
Ma, Tianyuan, Xu, Gui-Liang, Li, Yan, Wang, Li, He, Xiangming, Zheng, Jianming, Liu, Jun, Engelhard, Mark H., Zapol, Peter, Curtiss, Larry A., Jorne, Jacob, Amine, Khalil, and Chen, Zonghai. Mon . "Revisiting the Corrosion of the Aluminum Current Collector in Lithium-Ion Batteries". United States. doi:10.1021/acs.jpclett.6b02933.
@article{osti_1353326,
title = {Revisiting the Corrosion of the Aluminum Current Collector in Lithium-Ion Batteries},
author = {Ma, Tianyuan and Xu, Gui-Liang and Li, Yan and Wang, Li and He, Xiangming and Zheng, Jianming and Liu, Jun and Engelhard, Mark H. and Zapol, Peter and Curtiss, Larry A. and Jorne, Jacob and Amine, Khalil and Chen, Zonghai},
abstractNote = {The corrosion of aluminum current collectors and the oxidation of solvents at a relatively high potential have been widely investigated with an aim to stabilize the electrochemical performance of lithium-ion batteries using such components. The corrosion behavior of aluminum current collectors was revisited using a home-build high-precision electrochemical measurement system, and the impact of electrolyte components and the surface protection layer on aluminum foil was systematically studied. The electrochemical results showed that the corrosion of aluminum foil was triggered by the electrochemical oxidation of solvent molecules, like ethylene carbonate, at a relative high potential. The organic radical cations generated from the electrochemical oxidation are energetically unstable, and readily undergo a deprotonation reaction that generates protons and promote the dissolution of Al3+ from the aluminum foil. This new reaction mechanism can also shed light on the dissolution of transitional metal at high potentials.},
doi = {10.1021/acs.jpclett.6b02933},
journal = {Journal of Physical Chemistry Letters},
number = 5,
volume = 8,
place = {United States},
year = {Mon Feb 20 00:00:00 EST 2017},
month = {Mon Feb 20 00:00:00 EST 2017}
}