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; Perez-Garcia, Lluisa; Cameron, Jamie M.; Johnson, Lee R.; Amabilino, David B.; Newton, Graham N.

doi:10.1002/anie.202216066

Authors

Rory C. McNulty

Keir Penston

Sharad S. Amin

Sandro Stal

Jie Yie Lee

Mario Samperi

Lluisa Perez-Garcia

Jamie M. Cameron

LEE JOHNSON LEE.JOHNSON@NOTTINGHAM.AC.UK
Associate Professor of Chemistry

David B. Amabilino

GRAHAM NEWTON GRAHAM.NEWTON@NOTTINGHAM.AC.UK
Associate Professor

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
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	General Chemistry; Catalysis
Public URL	https://nottingham-repository.worktribe.com/output/16492460
Publisher URL	https://onlinelibrary.wiley.com/doi/10.1002/anie.202216066