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Title: Transient Nonlinear Response of Dynamically Decoupled Ionic Conductors

Journal Article · · Physical Review Letters

The present study demonstrates that large electric fields progressively enhance the conductivity of ionic systems up to timescales corresponding to those on which their structural rearrangements take place. Here, in many ionic materials, some regarded as candidates for electrical energy storage applications, the structural relaxation process can be tremendously slower than (or highly decoupled from) the charge fluctuations. Consequently, nonlinear dielectric spectroscopy may be employed to access rheological information in dynamically decoupled ionic conductors, whereas the combination of large electric power density and good mechanical stability, both technologically highly desired, imposes specific experimental constraints to reliably determine the steady-state conductivity of such materials.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1510586
Alternate ID(s):
OSTI ID: 1463761
Journal Information:
Physical Review Letters, Vol. 121, Issue 6; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

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Cited By (3)

Nonlinear electrical and rheological spectroscopies identify structural and supramolecular relaxations in a model peptide journal January 2019
Local and global dynamics of the viscous ion conductors 2Ca(NO 3 ) 2 -3KNO 3 and 2Ca(NO 3 ) 2 -3RbNO 3 probed by 87 Rb nuclear magnetic resonance and shear rheology journal May 2019
Structure and dynamics of short-chain polymerized ionic liquids journal July 2019

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