Issue 30, 2020

A Mini-Review: MXene composites for sodium/potassium-ion batteries

Abstract

MXenes, as a new type of two-dimensional layered structure material, have attracted much attention. MXenes have high electronic conductivity, a large specific area, excellent mechanical properties and a unique layered structure and have been extensively used in energy storage, adsorption, catalysis and other fields. In recent years, Mxenes and their composite materials have been widely used in the field of secondary batteries. Although oxides, sulfides and other materials have high capacity, there are problems such as low conductivity, volume expansion in the reaction process, poor cycling stability, etc. Therefore, building composite materials with MXenes can not only improve the capacity but also enhance the electronic conductivity of the materials, effectively alleviate volume expansion in the reaction process, and achieve better electrochemical performance. This article reviews the latest research status of MXenes, the synthesis methods, properties and application of MXenes and their composite materials in sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs), briefly introduces the research background of SIBs, PIBs and MXenes, and focuses on the application research of MXene composite materials in SIBs and PIBs, including classification according to sulfide, oxide and carbon materials. Finally, the development and application prospects of MXenes and their composite materials are summarized.

Graphical abstract: A Mini-Review: MXene composites for sodium/potassium-ion batteries

Article information

Article type
Minireview
Submitted
29 May 2020
Accepted
30 Jun 2020
First published
30 Jun 2020

Nanoscale, 2020,12, 15993-16007

A Mini-Review: MXene composites for sodium/potassium-ion batteries

M. K. Aslam and M. Xu, Nanoscale, 2020, 12, 15993 DOI: 10.1039/D0NR04111D

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