Issue 19, 2012

Sponge-like porous carbon/tin composite anode materials for lithium ion batteries

Abstract

A novel sponge-like porous C/Sn composite is synthesized by dispersing SnO2 nanoparticles into a soft-template polymer matrix followed by carbonization. The mesoporous C/Sn anodes can deliver a capacity as high as 1300 mAh g−1 after 450 charge/discharge cycles, and provide a capacity of 180 mAh g−1 even at 4000 mA g−1 charge/discharge current density. An extra reversible capacity over the theoretical value of the porous C/Sn anode is observed, which is attributed to the reversible formation/decomposition of the gel-like polymers formed on the mesoporous C/Sn composite due to the catalytic effect of the Sn nanoparticles. The high capacity, long cycle life, high power, ∼100% Coulombic efficiency, and inexpensive production method make the sponge-like porous C/Sn composite an attractive anode material in Li-ion batteries for electric vehicles and renewable energy storage.

Graphical abstract: Sponge-like porous carbon/tin composite anode materials for lithium ion batteries

Article information

Article type
Paper
Submitted
21 Jan 2012
Accepted
08 Mar 2012
First published
09 Mar 2012

J. Mater. Chem., 2012,22, 9562-9567

Sponge-like porous carbon/tin composite anode materials for lithium ion batteries

Y. Xu, J. Guo and C. Wang, J. Mater. Chem., 2012, 22, 9562 DOI: 10.1039/C2JM30448A

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.

Spotlight

Advertisements