Rory C. McNulty
Self-Assembled Surfactant-Polyoxovanadate Soft Materials as Tuneable Vanadium Oxide Cathode Precursors for Lithium-Ion Batteries
McNulty, Rory C.; Penston, Keir; Amin, Sharad S.; Stal, Sandro; Lee, Jie Yie; Samperi, Mario; Pérez-García, Lluïsa; Cameron, Jamie M.; Johnson, Lee R.; Amabilino, David B.; Newton, Graham N.
Authors
Keir Penston
Sharad S. Amin
Sandro Stal
Jie Yie Lee
Mario Samperi
Lluïsa Pérez-García
Jamie M. Cameron
LEE JOHNSON LEE.JOHNSON@NOTTINGHAM.AC.UK
Professor of Electrochemistry
David B. Amabilino
GRAHAM NEWTON GRAHAM.NEWTON@NOTTINGHAM.AC.UK
Professor of Chemistry
Abstract
The mixing of [V10O28]6− decavanadate anions with a dicationic gemini surfactant (gem) leads to the spontaneous self-assembly of surfactant-templated nanostructured arrays of decavanadate clusters. Calcination of the material under air yields highly crystalline, sponge-like V2O5 (gem-V2O5). In contrast, calcination of the amorphous tetrabutylammonium decavanadate allows isolation of a more agglomerated V2O5 consisting of very small crystallites (TBA-V2O5). Electrochemical analysis of the materials’ performance as lithium-ion intercalation electrodes highlights the role of morphology in cathode performance. The large crystallites and long-range microstructure of the gem-V2O5 cathode deliver higher initial capacity and superior capacity retention than TBA-V2O5. The smaller crystallite size and higher surface area of TBA-V2O5 allow faster lithium insertion and superior rate performance to gem-V2O5.
Citation
McNulty, R. C., Penston, K., Amin, S. S., Stal, S., Lee, J. Y., Samperi, M., …Newton, G. N. (2023). Self-Assembled Surfactant-Polyoxovanadate Soft Materials as Tuneable Vanadium Oxide Cathode Precursors for Lithium-Ion Batteries. Angewandte Chemie International Edition, 62(12), Article e202216066. https://doi.org/10.1002/anie.202216066
Journal Article Type | Article |
---|---|
Acceptance Date | Jan 13, 2023 |
Online Publication Date | Jan 13, 2023 |
Publication Date | Mar 13, 2023 |
Deposit Date | Feb 21, 2023 |
Publicly Available Date | Jan 14, 2024 |
Journal | Angewandte Chemie - International Edition |
Print ISSN | 1433-7851 |
Electronic ISSN | 1521-3773 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 62 |
Issue | 12 |
Article Number | e202216066 |
DOI | https://doi.org/10.1002/anie.202216066 |
Keywords | Electrochemistry; Energy Storage; Metal Oxide; Polyoxometalate; Self-Assembly |
Public URL | https://nottingham-repository.worktribe.com/output/16492460 |
Publisher URL | https://onlinelibrary.wiley.com/doi/10.1002/anie.202216066 |
Files
Accepted Manuscript
(1.3 Mb)
PDF
Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
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