Issue 45, 2017

A lithium–carbon nanotube composite for stable lithium anodes

Abstract

Li metal has been considered as the ultimate anode material for high-density electrochemical energy storage technology because of its extremely high specific capacity (3860 mAh g−1), lowest redox potential, and ability to enable battery chemistries with lithium free cathode materials. However, the practical application of Li metal anodes is still prohibited by its low Coulombic efficiency (CE) and growth of Li dendrites during Li dissolution/deposition. Here we report the successful preparation of a lithium carbon nanotube (Li-CNT) composite via a facile and scalable molten impregnation method. When used as an anode material, the Li-CNT composite not only displays the good traits of Li metal such as high specific capacity and low lithium dissolution/deposition potential, but also shows significantly suppressed dendrite formation and high CE. When the Li-CNT composite is paired with a commercial LiFePO4 (LFP) cathode, a CE of around 90.1% can be achieved, which is much higher than the value (75.4%) obtained from a lithium foil anode.

Graphical abstract: A lithium–carbon nanotube composite for stable lithium anodes

Supplementary files

Article information

Article type
Communication
Submitted
27 सितम्बर 2017
Accepted
15 अक्तूबर 2017
First published
16 अक्तूबर 2017

J. Mater. Chem. A, 2017,5, 23434-23439

A lithium–carbon nanotube composite for stable lithium anodes

Y. Wang, Y. Shen, Z. Du, X. Zhang, K. Wang, H. Zhang, T. Kang, F. Guo, C. Liu, X. Wu, W. Lu and L. Chen, J. Mater. Chem. A, 2017, 5, 23434 DOI: 10.1039/C7TA08531A

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