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The application of hollow micro-/nanostructured cathodes for sodium-ion batteries

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Abstract

High-performance sodium-ion batteries (SIBs) rely on efficient cathodes, constructed based on advances in excellent rate capability, high capacity, and small volume change. Cathode materials with micro-/nano-hollow architectures can shorten the diffusion length, offer volume buffering, and increase the conducting capability of electrons/ions, so they have been extensively developed as a new strategy for the exploration of future cathodes. This review offers a snapshot of the recent progress on the synthetic strategies used to prepare hollow cathodes, their improved battery performance, and the mechanism of sodium storage underlying the use of hollow micro-/nanostructured cathode materials. Finally, we provide an overview of likely future directions in this research, which includes seeking the right balance between volumetric capacity and energy density.

Graphical abstract: The application of hollow micro-/nanostructured cathodes for sodium-ion batteries

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Article information


Submitted
30 Oct 2019
Accepted
29 Dec 2019
First published
30 Dec 2019

Mater. Chem. Front., 2020, Advance Article
Article type
Chemistry Frontiers

The application of hollow micro-/nanostructured cathodes for sodium-ion batteries

X. Liu, W. Lai and S. Chou, Mater. Chem. Front., 2020, Advance Article , DOI: 10.1039/C9QM00674E

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