Next Article in Journal
The Bioactivity and Photocatalytic Properties of Titania Nanotube Coatings Produced with the Use of the Low-Potential Anodization of Ti6Al4V Alloy Surface
Next Article in Special Issue
Recent Progresses and Development of Advanced Atomic Layer Deposition towards High-Performance Li-Ion Batteries
Previous Article in Journal
Application of Nanosize Zeolite Molecular Sieves for Medical Oxygen Concentration
Previous Article in Special Issue
Preparation of Ce- and La-Doped Li4Ti5O12 Nanosheets and Their Electrochemical Performance in Li Half Cell and Li4Ti5O12/LiFePO4 Full Cell Batteries
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle

Flexible Carbon Nanotube Modified Separator for High-Performance Lithium-Sulfur Batteries

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
Laboratory of Reactions and Process Engineering (LRGP, CNRS UMR 7274), CNRS-University of Lorraine, 1rue Grandville, BP 20451, 54001 Nancy, France
Authors to whom correspondence should be addressed.
Nanomaterials 2017, 7(8), 196;
Received: 10 July 2017 / Revised: 21 July 2017 / Accepted: 21 July 2017 / Published: 26 July 2017
(This article belongs to the Special Issue New Developments in Nanomaterials for Energy Storage and Conversions)
PDF [2178 KB, uploaded 26 July 2017]


Lithium-sulfur (Li-S) batteries have become promising candidates for electrical energy storage systems due to their high theoretical specific energy density, low cost and environmental friendliness. However, there are some technical obstacles of lithium-sulfur batteries to be addressed, such as the shuttle effect of polysulfides. Here, we introduced organically modified carbon nanotubes (CNTs) as a coating layer for the separator to optimize structure and enhance the performance of the Li-S battery. The results showed that the cell with a CNTs-coated separator exhibited an excellent cycling performance. Compared to the blank separator, the initial discharge capacity and the capacity after 100 cycles for the CNTs-coated separator was increased by 115% and 161%, respectively. Besides, according to the rate capability test cycling from 0.1C to 2C, the battery with a CNTs-coated separator still released a capacity amounting to 90.2% of the initial capacity, when the current density returned back to 0.1C. It is believed that the organically modified CNTs coating effectively suppresses the shuttle effect during the cycling. The employment of a CNTs-coated separator provides a promising approach for high-performance lithium-sulfur batteries. View Full-Text
Keywords: Lithium-sulfur batteries; carbon nanotubes; separators; shuttle effect Lithium-sulfur batteries; carbon nanotubes; separators; shuttle effect

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Liu, B.; Wu, X.; Wang, S.; Tang, Z.; Yang, Q.; Hu, G.-H.; Xiong, C. Flexible Carbon Nanotube Modified Separator for High-Performance Lithium-Sulfur Batteries. Nanomaterials 2017, 7, 196.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Nanomaterials EISSN 2079-4991 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top