Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 45, 2019
Previous Article Next Article

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

Back to tab navigation

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

Social activity

Search articles by author

Spotlight

Advertisements