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Title: Sulfur cathode based on layered carbon matrix for high-performance Li–S batteries

Abstract

A novel carbon/sulfur composite has been fabricated by means of thermal and hydro-thermal treatments to serve as the cathode in Li -S batteries. The carbon matrix consists of graphene nanosheet (GS) and multiwalled carbon nanotube (MWCNT). The "GS/MWCNT@S" composite allows for infiltration of electrolyte into the cathode, assists in entrapment of polysulfide intermediates, and accommodates some of the stress and volume expansion that occurs during charge discharge processes. In addition, the uniform distribution of sulfur in the conductive carbon matrix promotes utilization of the active materials. A Li-S cell containing the GS/MWCNT@S cathode delivered a capacity of 1290.8 mAh/g and exhibited stable specific capacities up to 612.1 mAh/g after 200 cycles at 0.1 C. These results demonstrate that this cathode material is a promising candidate for rechargeable lithium batteries with high energy density.

Authors:
; ; ; ORCiD logo; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Natural Science Foundation of China (NNSFC); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1391933
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nano Energy; Journal Volume: 12; Journal Issue: C
Country of Publication:
United States
Language:
English
Subject:
Carbon matrix; Cathode; Graphene sheet; Lithium–sulfur battery; Multi-walled carbon nanotube

Citation Formats

Wu, Feng, Qian, Ji, Chen, Renjie, Zhao, Teng, Xu, Rui, Ye, Yusheng, Li, Wenhui, Li, Li, Lu, Jun, and Amine, Khalil. Sulfur cathode based on layered carbon matrix for high-performance Li–S batteries. United States: N. p., 2015. Web. doi:10.1016/j.nanoen.2014.12.042.
Wu, Feng, Qian, Ji, Chen, Renjie, Zhao, Teng, Xu, Rui, Ye, Yusheng, Li, Wenhui, Li, Li, Lu, Jun, & Amine, Khalil. Sulfur cathode based on layered carbon matrix for high-performance Li–S batteries. United States. doi:10.1016/j.nanoen.2014.12.042.
Wu, Feng, Qian, Ji, Chen, Renjie, Zhao, Teng, Xu, Rui, Ye, Yusheng, Li, Wenhui, Li, Li, Lu, Jun, and Amine, Khalil. Sun . "Sulfur cathode based on layered carbon matrix for high-performance Li–S batteries". United States. doi:10.1016/j.nanoen.2014.12.042.
@article{osti_1391933,
title = {Sulfur cathode based on layered carbon matrix for high-performance Li–S batteries},
author = {Wu, Feng and Qian, Ji and Chen, Renjie and Zhao, Teng and Xu, Rui and Ye, Yusheng and Li, Wenhui and Li, Li and Lu, Jun and Amine, Khalil},
abstractNote = {A novel carbon/sulfur composite has been fabricated by means of thermal and hydro-thermal treatments to serve as the cathode in Li -S batteries. The carbon matrix consists of graphene nanosheet (GS) and multiwalled carbon nanotube (MWCNT). The "GS/MWCNT@S" composite allows for infiltration of electrolyte into the cathode, assists in entrapment of polysulfide intermediates, and accommodates some of the stress and volume expansion that occurs during charge discharge processes. In addition, the uniform distribution of sulfur in the conductive carbon matrix promotes utilization of the active materials. A Li-S cell containing the GS/MWCNT@S cathode delivered a capacity of 1290.8 mAh/g and exhibited stable specific capacities up to 612.1 mAh/g after 200 cycles at 0.1 C. These results demonstrate that this cathode material is a promising candidate for rechargeable lithium batteries with high energy density.},
doi = {10.1016/j.nanoen.2014.12.042},
journal = {Nano Energy},
number = C,
volume = 12,
place = {United States},
year = {Sun Mar 01 00:00:00 EST 2015},
month = {Sun Mar 01 00:00:00 EST 2015}
}