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 promotes 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.affiliation: Chemical Sciences and Engineering Division, Argonne National Laboratory , 9700 South Cass Avenue, Lemont, Illinois 60439, United States.|Materials Science Program, University of Rochester , Rochester, New York 14627, United States.
authors.forename: Tianyuan
authors.initials: T
authors.lastname: Ma
authors.affiliation: Chemical Sciences and Engineering Division, Argonne National Laboratory , 9700 South Cass Avenue, Lemont, Illinois 60439, United States.
authors.forename: Gui-Liang
authors.initials: GL
authors.lastname: Xu
authors.affiliation: Chemical Sciences and Engineering Division, Argonne National Laboratory , 9700 South Cass Avenue, Lemont, Illinois 60439, United States.
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.affiliation: Institute of Nuclear and New Energy Technology, Tsinghua University , Beijing 100084, China.
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.affiliation: Institute of Nuclear and New Energy Technology, Tsinghua University , Beijing 100084, China.
authors.forename: Xiangming
authors.initials: X
authors.lastname: He
authors.affiliation: Energy and Environmental Directorate, Pacific Northwest National Laboratory , 902 Battelle Boulevard, Richland, Washington 99354, United States.
authors.forename: Jianming
authors.initials: J
authors.lastname: Zheng
authors.affiliation: Energy and Environmental Directorate, Pacific Northwest National Laboratory , 902 Battelle Boulevard, Richland, Washington 99354, United States.
authors.forename: Jun
authors.initials: J
authors.lastname: Liu
authors.affiliation: Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory , 902 Battelle Boulevard, Richland, Washington 99354, United States.
authors.forename: Mark H
authors.initials: MH
authors.lastname: Engelhard
authors.affiliation: Material Science Division, Argonne National Laboratory , 9700 South Cass Avenue, Lemont, Illinois 60439, United States.
authors.forename: Peter
authors.identifier: http://orcid.org/0000-0003-0570-9169
authors.initials: P
authors.lastname: Zapol
authors.affiliation: Material Science Division, Argonne National Laboratory , 9700 South Cass Avenue, Lemont, Illinois 60439, United States.
authors.forename: Larry A
authors.initials: LA
authors.lastname: Curtiss
authors.affiliation: Materials Science Program, University of Rochester , Rochester, New York 14627, United States.|Department of Chemical Engineering, University of Rochester , Rochester, New York 14627, United States.
authors.forename: Jacob
authors.initials: J
authors.lastname: Jorne
authors.affiliation: Chemical Sciences and Engineering Division, Argonne National Laboratory , 9700 South Cass Avenue, Lemont, Illinois 60439, United States.
authors.forename: Khalil
authors.identifier: http://orcid.org/0000-0001-9206-3719
authors.initials: K
authors.lastname: Amine
authors.affiliation: Chemical Sciences and Engineering Division, Argonne National Laboratory , 9700 South Cass Avenue, Lemont, Illinois 60439, United States.
authors.forename: Zonghai
authors.identifier: http://orcid.org/0000-0001-5371-9463
authors.initials: Z
authors.lastname: Chen