Electrochemical Properties of Sulfur in Different Carbon Support Materials

Authors

Bo ZHANG, Energy & Materials Engineering Centre, College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, China;Tianjin International Joint Research Centre of Surface Technology for Energy Storage Materials, Tianjin 300387, China;Follow
Jia LIU, Energy & Materials Engineering Centre, College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, China;Tianjin International Joint Research Centre of Surface Technology for Energy Storage Materials, Tianjin 300387, China;
Xiao-chen LIU, Energy & Materials Engineering Centre, College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, China;Tianjin International Joint Research Centre of Surface Technology for Energy Storage Materials, Tianjin 300387, China;
De-jun LI, Energy & Materials Engineering Centre, College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, China;Tianjin International Joint Research Centre of Surface Technology for Energy Storage Materials, Tianjin 300387, China;

Corresponding Author

Bo ZHANG(zhangbo2014@tjnu.edu.cn)

Abstract

In order to investigate the effect of carbon structure on electrochemical performance of sulfur/carbon composite in lithium-sulfur battery, in this paper, sublimation sulfur was incorporated into three types of carbon materials, namely, graphene, carbon black and porous carbon. The three sulfur/carbon composites were characterized by scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET), and X-ray diffraction (XRD) techniques, and their electrochemical performances were also studied. The results showed that the sulfur/porous carbon composite offered an initial discharge capacity of 1623.2 mA·h·g^-1 and remained 845 mA·h·g^-1 after 100 cycles. Compared with graphene and carbon black, the mesopores and micropores in porous carbon improved the utilization of sulfur, contributing to better electrochemical performance of sulfur.

Graphical Abstract

Keywords

lithium-sulfur batteries, sulfur/carbon composites, porous carbon materials；graphene, carbon black

DOI Link

https://doi.org/10.13208/j.electrochem.181117

Publication Date

2019-12-28

Online Available Date

2019-03-01

Revised Date

2019-02-18

Received Date

2018-12-04

Recommended Citation

Bo ZHANG, Jia LIU, Xiao-chen LIU, De-jun LI. Electrochemical Properties of Sulfur in Different Carbon Support Materials[J]. Journal of Electrochemistry, 2019 , 25(6): 749-756.
DOI: 10.13208/j.electrochem.181117
Available at: https://jelectrochem.xmu.edu.cn/journal/vol25/iss6/12

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