Issue 22, 2021

State-of-the-art anodes of potassium-ion batteries: synthesis, chemistry, and applications

Abstract

The growing demand for green energy has fueled the exploration of sustainable and eco-friendly energy storage systems. To date, the primary focus has been solely on the enhancement of lithium-ion battery (LIB) technologies. Recently, the increasing demand and uneven distribution of lithium resources have prompted extensive attention toward the development of other advanced battery systems. As a promising alternative to LIBs, potassium-ion batteries (KIBs) have attracted considerable interest over the past years owing to their resource abundance, low cost, and high working voltage. Capitalizing on the significant research and technological advancements of LIBs, KIBs have undergone rapid development, especially the anode component, and diverse synthesis techniques, potassiation chemistry, and energy storage applications have been systematically investigated and proposed. In this review, the necessity of exploring superior anode materials is highlighted, and representative KIB anodes as well as various structural construction approaches are summarized. Furthermore, critical issues, challenges, and perspectives of KIB anodes are meticulously organized and presented. With a strengthened understanding of the associated potassiation chemistry, the composition and microstructural modification of KIB anodes could be significantly improved.

Graphical abstract: State-of-the-art anodes of potassium-ion batteries: synthesis, chemistry, and applications

Article information

Article type
Review Article
Submitted
18 Dec. 2020
Accepted
04 Maijs 2021
First published
11 Maijs 2021
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2021,12, 7623-7655

State-of-the-art anodes of potassium-ion batteries: synthesis, chemistry, and applications

P. Li, H. Kim, K. Kim, J. Kim, H. Jung and Y. Sun, Chem. Sci., 2021, 12, 7623 DOI: 10.1039/D0SC06894B

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