Issue 37, 2015

Ultra-lightweight PANiNF/MWCNT-functionalized separators with synergistic suppression of polysulfide migration for Li–S batteries with pure sulfur cathodes

Abstract

A custom separator with an ultra-lightweight polyaniline nanofiber/multiwall carbon nanotube (PANiNF/MWCNT) coating has been utilized in lithium–sulfur (Li–S) batteries for investigating the electrochemical performance of the hybrid conductive-polymer/carbon coating. The cells employing the PANiNF/MWCNT-functionalized separators facilitate high reversible capacities of 709, 641, and 612 mA h g−1 at, respectively, C/5, C/2, and 1C rates after 100 cycles. High charge-storage capacity retention was also found in the cell with the PANiNF/MWCNT-functionalized separator after a resting time of 12 h. Such dynamic and static electrochemical stability could be ascribed to the synergistic physical adsorption and chemical immobilization of the polysulfides by the ultra-lightweight PANiNF/MWCNT coating (only 0.01 mg cm−2). This demonstrates that the design of hybrid polymer/carbon-coated-separators has the potential to become a viable approach for successfully developing practical Li–S batteries.

Graphical abstract: Ultra-lightweight PANiNF/MWCNT-functionalized separators with synergistic suppression of polysulfide migration for Li–S batteries with pure sulfur cathodes

Supplementary files

Article information

Article type
Communication
Submitted
06 jul 2015
Accepted
10 ago 2015
First published
10 ago 2015

J. Mater. Chem. A, 2015,3, 18829-18834

Ultra-lightweight PANiNF/MWCNT-functionalized separators with synergistic suppression of polysulfide migration for Li–S batteries with pure sulfur cathodes

C. Chang, S. Chung and A. Manthiram, J. Mater. Chem. A, 2015, 3, 18829 DOI: 10.1039/C5TA05053G

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