DOI > 10.5291/ILL-DATA.6-02-618

This proposal is publicly available since 02/19/2026

Title

Influence of HFE on the dynamics of an ionic liquid electrolyte

Abstract

We propose to investigate the dynamics in a new electrolyte system, a localised highly concentrated electrolyte, where the viscosity is lowered by a diluent while locally preserving a highly concentrated ionic environment. The aim is to investigate how the dilution of an ionic liquid electrolyte affects the local dynamics and the microscopic conduction mechanism and link it to the behaviour of the macroscopic conductivity. With neutron spin echo spectroscopy at WASP we can directly access the time scales of local dynamics (ps-ns) at relevant length scales of charge correlation in these liquids.

Experimental Report

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Data Citation

The recommended format for citing this dataset in a research publication is in the following format:

LUNDIN Filippa; FALUS Peter and MATIC Aleksandar. (2021). Influence of HFE on the dynamics of an ionic liquid electrolyte. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-02-618

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Metadata

Experiment Parameters

  • Environment temperature

    10K-320K

  • Experiment energy

    7Å

  • Experiment moment

    0.1-1.6 Å -1

Sample Parameters

  • Formula

    • 1-Butyl-1-Methylpyrrolidinium bis(fluorosulfonyl)imide (P14FSI) : Lithium bis(fluorosulfonyl)imide (LiFSI) : 1,1,2,2-Tetrafluoroethyl 2,2,2-Trifluoroethyl Ether (HFE)

Institut Laue-Langevin

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