Journal of Solid State Electrochemistry

, Volume 23, Issue 2, pp 645–656 | Cite as

Separator modified with Ketjenblack-In2O3 nanoparticles for long cycle-life lithium-sulfur batteries

  • Xiaofen Yang
  • Xinye QianEmail author
  • Lina Jin
  • Shanshan Yao
  • Dewei Rao
  • Xiangqian ShenEmail author
  • Li Wang
  • Jinli Tan
Original Paper


Lithium-sulfur (Li-S) batteries have attracted wide attention because of their high theoretical energy density and specific capacity and because they are environmentally friendly. However, its applications are still greatly hindered by some inherent problems such as uncontrollable deposition of lithium sulfide and the shuttle effect induced by lithium polysulfides. Herein, separators modified with Ketjenblack-In2O3 (KB-IO) nanoparticles were used to ease these problems and to improve the cycling stability and rate performance of the Li-S battery. Experimental results suggest that the KB-IO-modified separator has a considerable absorption capability on lithium polysulfides as well as a good catalytic effect on electrochemical reaction kinetics. At 1 C, the initial specific discharge capacities of the Li-S cells with the KB-IO-modified separator is as high as 1050 mAh g−1 and maintains 631 mAh g−1 after 700 cycles. Moreover, the cells also show an appreciable rate performance of 832 mAh g−1 even at a rate of 2 C, and this rate performance is much higher than that of the sample with the unmodified separator and that of the sample with the pure KB-modified separator.


Funding information

This work was financially supported by the Natural Science Foundation of Jiangsu Provincial Higher Education of China (Grant No. 16KJB430007) and the National Natural Science Foundation of China (Grant No.51274106, 51474113).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Institute for Advanced Materials, College of Materials Science and EngineeringJiangsu UniversityZhenjiangPeople’s Republic of China
  2. 2.Institute of Advanced MaterialsJiangsu UniversityZhenjiangPeople’s Republic of China
  3. 3.Hunan Engineering Laboratory of Power Battery Cathode MaterialsChangsha Research Institute of Mining and MetallurgyChangshaPeople’s Republic of China

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