Effects of Carbon Interlayer on Electrochemical Performance of Lithium-Sulfur Cell

Authors

Jin-peng YU, School of Chemical Engineer and Technology, Tianjin University, Tianjin 300072, China;Science and Technology on Power Sources Laboratory, Tianjin Institute of Power Sources, Tianjin 300384, China;
Ming ZHANG, School of Chemical Engineer and Technology, Tianjin University, Tianjin 300072, China;
Fei DING, Science and Technology on Power Sources Laboratory, Tianjin Institute of Power Sources, Tianjin 300384, China;
Zhi-yuan TANG, School of Chemical Engineer and Technology, Tianjin University, Tianjin 300072, China;
Xing-jiang LIU, School of Chemical Engineer and Technology, Tianjin University, Tianjin 300072, China;Science and Technology on Power Sources Laboratory, Tianjin Institute of Power Sources, Tianjin 300384, China;Follow

Corresponding Author

Xing-jiang LIU(xjliu@nklps.org)

Abstract

Three kinds of conductive carbon films were prepared with Super-P (SP), KB and MWCNTs, and then the as-prepared carbon films were applied as an interlayer between a sulfur electrode and a separator for constructing a coin-type lithium-sulfur (Li-S) cell, respectively. The assessment results show that all the cells delivered the reversible capacities higher than 800 mAh·g^-1 after 40 cycles when the sulfur loading was up to 80% (by mass) in the sulfur electrode. Due to significant differences of physical properties among the carbon materials，the cell with a KB interlayer exhibited higher electrochemical polarization; the cycling performance of the cell with a SP interlayer was poorer than that of the other cells, although the discharge capacity was the highest in the initial cycles; MWCNTs film was the best choice as an interlayer in the Li-S cells.

Graphical Abstract

Keywords

lithium-sulfur batteries, conductive carbon film, interlayer, electrochemical performance

DOI Link

https://doi.org/10.13208/j.electrochem.130427

Publication Date

2014-04-28

Online Available Date

2014-04-17

Revised Date

2013-07-04

Received Date

2013-04-27

Recommended Citation

Jin-peng YU, Ming ZHANG, Fei DING, Zhi-yuan TANG, Xing-jiang LIU. Effects of Carbon Interlayer on Electrochemical Performance of Lithium-Sulfur Cell[J]. Journal of Electrochemistry, 2014 , 20(2): 105-109.
DOI: 10.13208/j.electrochem.130427
Available at: https://jelectrochem.xmu.edu.cn/journal/vol20/iss2/3