Issue 9, 2022

Nanostructured metal selenides as anodes for potassium-ion batteries

Abstract

In next-generation rechargeable batteries, potassium-ion batteries (KIBs) have been deemed to be one of the most promising candidates as a complement for lithium-ion batteries. Anodes as a component of ion batteries have a great effect on the safety and electrochemical performance. Among various developed anode materials, metal selenides (MSs) have been a popular option by merits of their superior material properties and high specific capacities. However, they are restricted by some intrinsic problems, such as large volume expansion and severe side reactions during electrochemical reactions, which limit their application to a certain degree. The strategy of structural design can endow MSs with superior material and electrochemical properties, making MSs exhibit better electrochemical performance. In this review, we summarize the recent advances in nanostructured MCs as KIB anodes. Meanwhile, their electrochemical reaction mechanisms and material synthesis methods are introduced briefly. Finally, the present challenges and future research directions are discussed.

Graphical abstract: Nanostructured metal selenides as anodes for potassium-ion batteries

Article information

Article type
Review Article
Submitted
17 jan 2022
Accepted
25 mar 2022
First published
30 mar 2022

Sustainable Energy Fuels, 2022,6, 2087-2112

Nanostructured metal selenides as anodes for potassium-ion batteries

G. Yang, Y. Wu, Q. Fu, H. Zhao and Y. Lei, Sustainable Energy Fuels, 2022, 6, 2087 DOI: 10.1039/D2SE00067A

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