13 Citations (SciVal)


The ability of some solid materials to exhibit exceptionally high ionic conductivities has been known since the observations of Michael Faraday in the 19th century [1], yet a detailed understanding of the atomic scale physics that gives rise to this behaviour remains an open scientific question. This theme issue collects articles from researchers working on the question of understanding fast-ion conduction in solid electrolytes.

The issue opens with two perspectives, both of which discuss particular concepts that have been proposed over time as schema for understanding fast-ion conduction in solid electrolytes. The first perspective presents an overview of a series of experimental NMR studies, and uses this to frame discussion of the role in fast-ion conduction of mobileion–ion interactions, crystallographic disorder, lowdimensionality of crystal structures, and fast interfacial diffusion in nanocomposite materials. The second perspective reviews computational studies of halides, oxides, sulfides, and hydroborates, focussing on the concept of frustration and how this can manifest in different forms in various fast-ion conductors.

The issue also includes five primary research articles, each of which presents a detailed analysis of the factors affecting the microscopic ion-diffusion in one specific fast-ion conducting solid electrolyte, including oxide-ion conductors; Gd2Zr2O7 and Bi4V2O11; lithium-ion conductors; Li6PS5Br and Li3OCl; and the prototypical fluoride-ion conductor β-PbF .

This article is part of the theme issue “Understanding Fast-Ion Conduction in Solid Electrolytes”.
Original languageEnglish
Article number20190451
JournalPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Issue number2211
Early online date11 Oct 2021
Publication statusPublished - 29 Nov 2021


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