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

164 Citations (Scopus)

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

Fingerprint

Carbon Nanotubes
Microspheres
Sulfur
Carbon nanotubes
Cathodes
Carbon
Composite materials
Emulsion polymerization
Lithium
Self assembly
Evaporation
Current density
Lithium sulfur batteries

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Xu, Terrence ; Song, Jiangxuan ; Gordin, Mikhail L. ; Sohn, Hiesang ; Yu, Zhaoxin ; Chen, Shuru ; Wang, Donghai. / Mesoporous carbon-carbon nanotube-sulfur composite microspheres for high-areal-capacity lithium-sulfur battery cathodes. In: ACS Applied Materials and Interfaces. 2013 ; Vol. 5, No. 21. pp. 11355-11362.
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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.",
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Mesoporous carbon-carbon nanotube-sulfur composite microspheres for high-areal-capacity lithium-sulfur battery cathodes. / Xu, Terrence; Song, Jiangxuan; Gordin, Mikhail L.; Sohn, Hiesang; Yu, Zhaoxin; Chen, Shuru; Wang, Donghai.

In: ACS Applied Materials and Interfaces, Vol. 5, No. 21, 13.11.2013, p. 11355-11362.

Research output: Contribution to journalArticle

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AU - Xu, Terrence

AU - Song, Jiangxuan

AU - Gordin, Mikhail L.

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AU - Yu, Zhaoxin

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AU - Wang, Donghai

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AB - 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.

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