Asymmetric Composition of Ionic Aggregates and the Origin of High Correlated Transference Number in Water-in-Salt Electrolytes
| Autor: | Yang Zhang, Larry A. Curtiss, Lei Cheng, Tao Li, Randall E. Winans, Zhou Yu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Solvation Salt (chemistry) Ionic bonding 02 engineering and technology Electrolyte Aqueous electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Chemical engineering chemistry General Materials Science Composition (visual arts) Physical and Theoretical Chemistry 0210 nano-technology Electrochemical window |
| Zdroj: | The Journal of Physical Chemistry Letters. 11:1276-1281 |
| ISSN: | 1948-7185 |
| DOI: | 10.1021/acs.jpclett.9b03495 |
| Popis: | "Water-in-salt" electrolytes open up exciting new avenues for expanding the electrochemical window of aqueous electrolytes. We investigated the solvation structure and dynamics of highly concentrated lithium bis(trifluoromethane)sulfonimide aqueous electrolyte using experimentally corroborated molecular dynamics simulations. The simulations revealed that the heterogeneous structure of the electrolyte comprises percolating networks of ion and water domains/aggregates. Interestingly, the ionic regions are composed of more TFSI |
| Databáze: | OpenAIRE |
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