Falus, P.
, Faraone, A.
, Forster, S.
, Hong, K.
and Ohl, M.
(2023),
Dynamics of the Extended and Intermediate Range Order in Model Polymer Electrolyte Poly(Ethylene Oxide) and Lithium Bis(Trifluoromethanesulfonyl)imide, Frontiers in Physics, [online], https://dx.doi.org/10.3389/frsfm.2023.1161141
(Accessed March 14, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Dynamics of the Extended and Intermediate Range Order in Model Polymer Electrolyte Poly(Ethylene Oxide) and Lithium Bis(Trifluoromethanesulfonyl)imide
Published
Author(s)
Peter Falus, , Stephan Forster, Kunlun Hong, Michael Ohl
Abstract
The dynamics of lithium ions and polymer chains were investigated at the molecular scale in the model polymer electrolyte Poly (Ethylene Oxide) (PEO)/Lithium bis(trifluoromethanesulfonyl)imide as a function of temperature. This system is known to present an intermediate range order from the arrangement of neighboring chain segments as well as an extended range order of cylindrically arranged chains. The collective dynamics of the systems at lengthscales matching these structural features was measured using Neutron Spin Echo spectroscopy, gaining insights into their lifetime. Moreover, using isotope substitution techniques the dynamics of the lithium ions with respect to the other atoms was probed. The obtained results are compared with the conductivity and the lithium self-diffusion coefficient measured by NMR to gain experimental insight on the molecular processes triggering lithium transport.Citation
Frontiers in Physics
Volume
3
Pub Type
Journals
Download Paper
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.
Created April 17, 2023, Updated January 23, 2024