Issue 28, 2014

Lithium reaction mechanism and high rate capability of VS4–graphene nanocomposite as an anode material for lithium batteries

Abstract

A graphene-attached VS4 composite prepared by a simple hydrothermal method is studied in terms of its lithium reaction mechanism and high rate capability. The nanocomposite exhibits a good cycling stability and an impressive high-rate capability for lithium storage, delivering a comparable capacity of 630 and 314 mA h g−1, even at high rates of 10 and 20 C (=10 and 20 A g−1, or 10 and 20 mA cm−2), respectively. In addition, full-cell (LiMn2O4/VS4–graphene) test results also exhibited a good capacity retention. The mechanism of Li storage is systematically studied and a conversion reaction with an irreversible phase change during the initial discharge–charge process is proposed.

Graphical abstract: Lithium reaction mechanism and high rate capability of VS4–graphene nanocomposite as an anode material for lithium batteries

Supplementary files

Article information

Article type
Paper
Submitted
21 ربيع الأول 1435
Accepted
04 جمادى الأولى 1435
First published
04 جمادى الأولى 1435

J. Mater. Chem. A, 2014,2, 10847-10853

Author version available

Lithium reaction mechanism and high rate capability of VS4–graphene nanocomposite as an anode material for lithium batteries

X. Xu, S. Jeong, C. S. Rout, P. Oh, M. Ko, H. Kim, M. G. Kim, R. Cao, H. S. Shin and J. Cho, J. Mater. Chem. A, 2014, 2, 10847 DOI: 10.1039/C4TA00371C

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