Jump to main content
Jump to site search

Issue 45, 2019

Electrocatalysis of S-doped carbon with weak polysulfide adsorption enhances lithium–sulfur battery performance

Author affiliations

Abstract

Heteroatom-doped nanocarbons are beneficial for the performance improvement of lithium–sulfur batteries, and the reason is usually attributed to their strong adsorption to the soluble polysulfides. Herein, we found that, despite the weak polysulfide adsorption on hierarchical S-doped carbon nanocages (hSCNCs), the hSCNC-encapsulated sulfur cathode still exhibited better performance than the counterpart using undoped carbon nanocages, showing a high capacity of 579 mA h g−1 at 2 A g−1 after 400 cycles, and a high areal capacity of 4.7 mA h cm−2 with a high sulfur loading of 4.5 mg cm−2. The electrocatalysis-promoted mechanism of S-doped carbon was demonstrated, which facilitated polysulfide conversion and suppressed the polarization effect, thereby leading to superior performance.

Graphical abstract: Electrocatalysis of S-doped carbon with weak polysulfide adsorption enhances lithium–sulfur battery performance

Supplementary files

Article information


Submitted
17 Mar 2019
Accepted
25 Apr 2019
First published
26 Apr 2019

Chem. Commun., 2019,55, 6365-6368
Article type
Communication

Electrocatalysis of S-doped carbon with weak polysulfide adsorption enhances lithium–sulfur battery performance

L. Du, X. Cheng, F. Gao, Y. Li, Y. Bu, Z. Zhang, Q. Wu, L. Yang, X. Wang and Z. Hu, Chem. Commun., 2019, 55, 6365 DOI: 10.1039/C9CC02134E

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

Search articles by author

Spotlight

Advertisements