Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received October 17, 2024
Accepted November 30, 2024
Available online February 25, 2025
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Donor Numbers for Ionic Liquids and Carbonate Solvents Using 7 Li and 23 Na as Probes
https://doi.org/10.1007/s11814-024-00356-2
Abstract
Lithium-ion batteries (LIBs) currently dominate the commercial rechargeable battery market due to their high ionic conductivity
and moderate compatibility. To enhance the development and safety of future LIBs, ionic liquids (ILs) have been
introduced as additives. For the fi rst time, we present the Lewis acid/base responses of nine ILs in terms of donor number
(DN), calculated using 7 Li NMR spectroscopy. The anionic component of the ILs signifi cantly infl uences the DN through its
interaction with lithium ions. In addition, the DN of three carbonate solvents was determined using both 7 Li and 23 Na NMR
spectroscopy, showing that DN of solvent is aff ected by the probe ion and solvent structure. These fi ndings off er valuable
insights for selecting appropriate solvents for future electrolyte development in LIBs.
