Exploring the Impact of In Situ-Formed Solid-Electrolyte Interphase on the Cycling Performance of Aluminum Metal Anodes
Article
Rakov, Dmitrii A., Ahmed, Nashaat, Kong, Yueqi, Nanjundan, Ashok Kumar, Popov, Ivan, Sokolov, Alexei P., Huang, Xiaodan and Yu, Chengzhong. 2024. "Exploring the Impact of In Situ-Formed Solid-Electrolyte Interphase on the Cycling Performance of Aluminum Metal Anodes." ACS Nano. 18 (41), pp. 28456-28468. https://doi.org/10.1021/acsnano.4c11391
Article Title | Exploring the Impact of In Situ-Formed Solid-Electrolyte Interphase on the Cycling Performance of Aluminum Metal Anodes |
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Article Category | Article |
Authors | Rakov, Dmitrii A., Ahmed, Nashaat, Kong, Yueqi, Nanjundan, Ashok Kumar, Popov, Ivan, Sokolov, Alexei P., Huang, Xiaodan and Yu, Chengzhong |
Journal Title | ACS Nano |
Journal Citation | 18 (41), pp. 28456-28468 |
Number of Pages | 13 |
Year | 2024 |
Digital Object Identifier (DOI) | https://doi.org/10.1021/acsnano.4c11391 |
Web Address (URL) | https://pubs.acs.org/doi/10.1021/acsnano.4c11391a |
Abstract | Unwanted processes in metal anode batteries, e.g., non-uniform metal electrodeposition, electrolyte decomposition, and/or short-circuiting, are not fully captured by the electrolyte bulk solvation structure but rather defined by the electrode–electrolyte interface and its changes induced by cycling conditions. Specifically, for aluminum-ion batteries (AIBs), the role of the solid–electrolyte interphase (SEI) on the Al0 electrodeposition mechanism and associated changes during resting or cycling remain unclear. Here, we investigated the current-dependent changes at the electrified aluminum anode/ionic liquid electrolyte interface to reveal the conditions of the SEI formation leading to irreversible cycling in the AIBs. We identified that the mechanism of anode failure depends on the nature of the counter electrode, where the areal capacity and cycling current for Al0 electrodeposition dictates the number of successful cycles. Notwithstanding the differences behind unstable aluminum anode cycling in symmetrical cells and AIBs, the uniform removal of electrochemically inactive SEI components, e.g., oxide-rich or solvent-derived organic-rich interphases, leads to more efficient cycling behavior. These understandings raise the importance of using specific conditioning protocols for efficient cycling of the aluminum anode in conjugation with different cathode materials. |
Keywords | ionic liquid electrolytes; formation cycling; aluminiun metal anode; solid-electrolyte interphase; electrode−electrolyte interface; electrified interfaces |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 340305. Physical properties of materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
University of Adelaide | |
School of Engineering | |
Centre for Future Materials | |
Oak Ridge National Laboratory, United States | |
University of Tennessee, United States | |
East China Normal University, China |
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