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Title: Utilizing a metal as a sulfur host for high performance Li-S batteries

Abstract

Molybdenum, for the first time, was used as a new type of sulfur host for lithium-sulfur batteries and exhibited outstanding electrochemical performance, even over traditional porous carbon hosts. A Mo-S composite, with 80 wt% sulfur loading, delivered reversible capacities of 1003 mAh g(-1) after 130 cycles at 0.1 C, and 786 mAh g(-1) after 100 cycles at 5.0 C. Further analysis using in situ X-ray diffraction, cyclic voltammetry, and density functional theory calculations demonstrated that the Mo surface can not only effectively trap polysulfides, but also catalytically decompose polysulfides and Li2S.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE) - Office of Vehicle Technology - Battery Materials Research (BMR) Program; National Natural Science Foundation of China (NNSFC); Fundamental Research Funds for the Central Universities; National Science Foundation (NSF)
OSTI Identifier:
1462714
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Nano Energy
Additional Journal Information:
Journal Volume: 50; Journal Issue: C; Journal ID: ISSN 2211-2855
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
in situ XRD; lithium-sulfur batteries; molybdenum; sulfur host

Citation Formats

Liu, Xiao-Chen, Zhou, Sophia P., Liu, Miao, Xu, Gui-Liang, Zhou, Xiao-Dong, Huang, Ling, Sun, Shi-Gang, Amine, Khalil, and Ke, Fu-Sheng. Utilizing a metal as a sulfur host for high performance Li-S batteries. United States: N. p., 2018. Web. doi:10.1016/j.nanoen.2018.06.011.
Liu, Xiao-Chen, Zhou, Sophia P., Liu, Miao, Xu, Gui-Liang, Zhou, Xiao-Dong, Huang, Ling, Sun, Shi-Gang, Amine, Khalil, & Ke, Fu-Sheng. Utilizing a metal as a sulfur host for high performance Li-S batteries. United States. doi:10.1016/j.nanoen.2018.06.011.
Liu, Xiao-Chen, Zhou, Sophia P., Liu, Miao, Xu, Gui-Liang, Zhou, Xiao-Dong, Huang, Ling, Sun, Shi-Gang, Amine, Khalil, and Ke, Fu-Sheng. Wed . "Utilizing a metal as a sulfur host for high performance Li-S batteries". United States. doi:10.1016/j.nanoen.2018.06.011.
@article{osti_1462714,
title = {Utilizing a metal as a sulfur host for high performance Li-S batteries},
author = {Liu, Xiao-Chen and Zhou, Sophia P. and Liu, Miao and Xu, Gui-Liang and Zhou, Xiao-Dong and Huang, Ling and Sun, Shi-Gang and Amine, Khalil and Ke, Fu-Sheng},
abstractNote = {Molybdenum, for the first time, was used as a new type of sulfur host for lithium-sulfur batteries and exhibited outstanding electrochemical performance, even over traditional porous carbon hosts. A Mo-S composite, with 80 wt% sulfur loading, delivered reversible capacities of 1003 mAh g(-1) after 130 cycles at 0.1 C, and 786 mAh g(-1) after 100 cycles at 5.0 C. Further analysis using in situ X-ray diffraction, cyclic voltammetry, and density functional theory calculations demonstrated that the Mo surface can not only effectively trap polysulfides, but also catalytically decompose polysulfides and Li2S.},
doi = {10.1016/j.nanoen.2018.06.011},
journal = {Nano Energy},
issn = {2211-2855},
number = C,
volume = 50,
place = {United States},
year = {2018},
month = {8}
}