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Influence of Surfaces on Ion Transport and Stability in Antiperovskite Solid Electrolytes at the Atomic Scale

Lookup NU author(s): Dr James Quirk, Dr Ying Zhou, Dr James DawsonORCiD

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

© 2024 The Authors. Published by American Chemical Society. Antiperovskites are generating considerable interest as potential solid electrolyte materials for solid-state batteries because of their promising ionic conductivity, wide electrochemical windows, stability, chemical diversity and tunability, and low cost. Despite this, there is a surprising lack of a systematic study of antiperovskite surfaces and their influence on the performance of these materials in energy storage applications. This is rectified here by providing a comprehensive density functional theory investigation of the surfaces of M3OX (M = Li or Na; X = Cl or Br) antiperovskites. Specifically, we focus on the stability, electronic structure, defect chemistry, and ion transport properties of stable antiperovskite surfaces and how these contribute to the overall performance and suitability of these materials as solid electrolytes. The findings presented here provide critical insights for the design of antiperovskite surfaces that are both stable and promote ion transport in solid-state batteries.

Publication metadata

Author(s): Dutra ACC, Quirk JA, Zhou Y, Dawson JA

Publication type: Article

Publication status: Published

Journal: ACS Materials Letters

Year: 2024

Volume: 6

Issue: 11

Pages: 5039-5047

Print publication date: 04/11/2024

Online publication date: 10/10/2024

Acceptance date: 07/10/2024

Date deposited: 14/02/2025

ISSN (electronic): 2639-4979

Publisher: American Chemical Society

URL: https://doi.org/10.1021/acsmaterialslett.4c01777

DOI: 10.1021/acsmaterialslett.4c01777

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