Page 66 - Read Online

Yang et al. Microstructures 2023;3:2023013 Microstructures
DOI: 10.20517/microstructures.2022.30

Review Open Access

Recent progress on alloy-based anode materials for

potassium-ion batteries

Qiuran Yang, Qining Fan, Jian Peng, Shulei Chou, Huakun Liu, Jiazhao Wang
Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong,
North Wollongong, New South Wales 2522, Australia.

Correspondence to: Prof. Jiazhao Wang, Institute for Superconducting and Electronic Materials, Australian Institute for
Innovative Materials, University of Wollongong, North Wollongong, New South Wales 2522, Australia. E-mail:
jiazhao@uow.edu.au
How to cite this article: Yang Q, Fan Q, Peng J, Chou S, Liu H, Wang J. Recent progress on alloy-based anode materials for
potassium-ion batteries. Microstructures 2023;3:2023013. https://dx.doi.org/10.20517/microstructures.2022.30

Received: 26 Sep 2022 First Decision: 31 Oct 2022 Revised: 12 Dec 2022 Accepted: 5 Jan 2023 Published: 22 Feb 2023
Academic Editor: Xiaozhou Liao Copy Editor: Fangling Lan Production Editor: Fangling Lan

Abstract
Potassium-ion batteries (PIBs) are considered as promising alternatives to lithium-ion batteries due to the
abundant potassium resources in the Earth’s crust. Establishing high-performance anode materials for PIBs is
essential to the development of PIBs. Recently, significant research effort has been devoted to developing novel
anode materials for PIBs. Alloy-based anode materials that undergo alloying reactions and feature combined
conversion and alloying reactions are attractive candidates due to their high theoretical capacities. In this review,
the current understanding of the mechanisms of alloy-based anode materials for PIBs is presented. The
modification strategies and recent research progress of alloy-based anodes and their composites for potassium
storage are summarized and discussed. The corresponding challenges and future perspectives of these materials
are also proposed.
Keywords: Potassium-ion batteries, mechanism, alloy-based anode materials

INTRODUCTION
With the rapidly growing demand for energy globally, unrenewable traditional fossil fuels, such as coal, oil
[1-9]
and gas, are facing depletion . Clean and renewable energy resources, such as solar, wind and tidal energy,
are among the most abundant and promising available resources to take the place of fossil fuels in the

© The Author(s) 2023. Open Access This article is licensed under a Creative Commons Attribution 4.0
International License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, sharing,
adaptation, distribution and reproduction in any medium or format, for any purpose, even commercially, as
long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and
indicate if changes were made.

www.microstructj.com