Issue 46, 2014

Carbonaceous multiscale-cellular foams as novel electrodes for stable, efficient lithium–sulfur batteries

Abstract

Porous carbon foams were prepared by pyrolysis of a phenolic resin by a dual template approach using silica monoliths as hard templates and triblock copolymers as soft templating agents. A macroporosity of 50–80% arose from the Si(HIPE) hard template, while the soft template generated micro- or meso-porosity according to the operating procedure. The final materials exhibited a BET specific surface area of 400–900 m2 g−1, depending on whether non-ionic surfactants were used during the synthesis; moreover, their performances as Li–sulfide battery positive electrodes were investigated. We determined that the novel 2P5HF carbon foam presents more than 800 mA h g−1 (150 mA h cm−3) of remnant capacity after 50 cycles, an unprecedented performance.

Graphical abstract: Carbonaceous multiscale-cellular foams as novel electrodes for stable, efficient lithium–sulfur batteries

Article information

Article type
Communication
Submitted
07 Apr 2014
Accepted
06 May 2014
First published
06 May 2014

RSC Adv., 2014,4, 23971-23976

Author version available

Carbonaceous multiscale-cellular foams as novel electrodes for stable, efficient lithium–sulfur batteries

M. Depardieu, R. Janot, C. Sanchez, A. Bentaleb, C. Gervais, M. Birot, R. Demir-Cakan, R. Backov and M. Morcrette, RSC Adv., 2014, 4, 23971 DOI: 10.1039/C4RA03110E

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