Issue 33, 2016

Borophene as an extremely high capacity electrode material for Li-ion and Na-ion batteries

Abstract

“Two-dimensional (2D) materials as electrodes” is believed to be the trend for future Li-ion and Na-ion battery technologies. Here, by using first-principles methods, we predict that the recently reported borophene (2D boron sheets) can serve as an ideal electrode material with high electrochemical performance for both Li-ion and Na-ion batteries. The calculations are performed on two experimentally stable borophene structures, namely β12 and χ3 structures. The optimized Li and Na adsorption sites are identified, and the host materials are found to maintain good electric conductivity before and after adsorption. Besides advantages including small diffusion barriers and low average open-circuit voltages, most remarkably, the storage capacity can be as high as 1984 mA h g−1 in β12 borophene and 1240 mA h g−1 in χ3 borophene for both Li and Na, which are several times higher than the commercial graphite electrode and are the highest among all the 2D materials discovered to date. Our results highly support that borophenes can be appealing anode materials for both Li-ion and Na-ion batteries with extremely high power density.

Graphical abstract: Borophene as an extremely high capacity electrode material for Li-ion and Na-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
24 May 2016
Accepted
21 Jul 2016
First published
26 Jul 2016

Nanoscale, 2016,8, 15340-15347

Borophene as an extremely high capacity electrode material for Li-ion and Na-ion batteries

X. Zhang, J. Hu, Y. Cheng, H. Y. Yang, Y. Yao and S. A. Yang, Nanoscale, 2016, 8, 15340 DOI: 10.1039/C6NR04186H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements