Mesoporous carbon-carbon nanotube-sulfur composite microspheres for high-areal-capacity lithium-sulfur battery cathodes

Terrence Xu, Jiangxuan Song, Mikhail L. Gordin, Hiesang Sohn, Zhaoxin Yu, Shuru Chen, Donghai Wang

Research output: Contribution to journalArticle

178 Scopus citations

Abstract

Lithium-sulfur (Li-S) batteries offer theoretical energy density much higher than that of lithium-ion batteries, but their development faces significant challenges. Mesoporous carbon-sulfur composite microspheres are successfully synthesized by combining emulsion polymerization and the evaporation-induced self-assembly (EISA) process. Such materials not only exhibit high sulfur-specific capacity and excellent retention as Li-S cathodes but also afford much improved tap density, sulfur content, and areal capacity necessary for practical development of high-energy-density Li-S batteries. In addition, when incorporated with carbon nanotubes (CNTs) to form mesoporous carbon-CNT-sulfur composite microspheres, the material demonstrated superb battery performance even at a high current density of 2.8 mA/cm2, with a reversible capacity over 700 mAh/g after 200 cycles.

Original languageEnglish (US)
Pages (from-to)11355-11362
Number of pages8
JournalACS Applied Materials and Interfaces
Volume5
Issue number21
DOIs
StatePublished - Nov 13 2013

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Fingerprint Dive into the research topics of 'Mesoporous carbon-carbon nanotube-sulfur composite microspheres for high-areal-capacity lithium-sulfur battery cathodes'. Together they form a unique fingerprint.

  • Cite this