Amplifying the Differences in Aluminum‐Based Eutectic Electrolytes Through Electrodeposition on MXenes

Page view(s)
6
Checked on Aug 10, 2025
Amplifying the Differences in Aluminum‐Based Eutectic Electrolytes Through Electrodeposition on MXenes
Title:
Amplifying the Differences in Aluminum‐Based Eutectic Electrolytes Through Electrodeposition on MXenes
Journal Title:
Advanced Functional Materials
Keywords:
Publication Date:
18 June 2024
Citation:
Lieu, W. Y., Thakur, A., Kumar, S., Li, Y., Li, X. L., Li, Y., Yang, G., Li, Y., Ghosh, T., Ng, M., Anasori, B., Yang, H. Y., & Seh, Z. W. (2024). Amplifying the Differences in Aluminum‐Based Eutectic Electrolytes Through Electrodeposition on MXenes. Advanced Functional Materials, 34(49). Portico. https://doi.org/10.1002/adfm.202408959
Abstract:
Traditionally, rechargeable lithium metal battery systems relied on simple metal cationic species to enable metal nucleation and deposition. However, this mechanism is less applicable to room‐temperature rechargeable aluminum batteries (RABs), which utilize complex ionic species. This work takes advantage of two different MXenes, Mo2Ti2C3Tx and Ti3C2Tx, which have different metal‐termination group bond strengths, interlayer spacings, and surface termination compositions, to amplify and visualize the differences between two promising RAB electrolytes (i.e., urea/AlCl3 and EMImCl/AlCl3). This work allowed us to deduce the following: 1) despite lower coulombic efficiencies, smoother Al deposits are observed when the urea/AlCl3 electrolyte is used; 2) unknown side reactions occur in all the different scenarios, however, they are likely less reversible in the EMImCl/AlCl3 electrolyte; 3) metal‐halogen exchange reactions can occur in all scenarios, forming Al(OF)x and AlFx species; 4) the free urea in urea/AlCl3 electrolyte behaves differently from the urea in aqueous solutions. Overall, due to the characteristics of aluminum, RABs involve vastly different internal mechanisms, resulting in the need for audacious attempts toward system understanding.
License type:
Publisher Copyright
Funding Info:
We acknowledge the National Supercomputing Centre (NSCC) Singapore and A*STAR Computational Resource Centre (A*CRC) of Singapore with its high-performance computing facilities.

This research / project is supported by the Singapore National Research Foundation - NRF Investigatorship
Grant Reference no. : NRF-NRFI09-0002

This research / project is supported by the Agency for Science, Technology and Research - Manufacturing, Trade, and Connectivity Programmatic Fund
Grant Reference no. : M23L9b0052

This research / project is supported by the Agency for Science, Technology and Research - Central Research Fund Award
Grant Reference no. : NA

This research / project is supported by the Singapore Ministry of Education - Academic Research Fund Tier 2
Grant Reference no. : MOE2019-T2-1-181
Description:
This is the peer reviewed version of the following article: Lieu, W. Y., Thakur, A., Kumar, S., Li, Y., Li, X. L., Li, Y., Yang, G., Li, Y., Ghosh, T., Ng, M., Anasori, B., Yang, H. Y., & Seh, Z. W. (2024). Amplifying the Differences in Aluminum‐Based Eutectic Electrolytes Through Electrodeposition on MXenes. Advanced Functional Materials, 34(49). Portico, which has been published in final form at https://doi.org/10.1002/adfm.202408959. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
ISSN:
1616-301X
1616-3028
Files uploaded:

File Size Format Action
manuscript-20240509.pdf 2.01 MB PDF Open