Next Article in Journal
Controlling Oxygen Mobility in Ruddlesden–Popper Oxides
Next Article in Special Issue
A High Performance Lithium-Ion Capacitor with Both Electrodes Prepared from Sri Lanka Graphite Ore
Previous Article in Journal
A Novel Extrusion for Manufacturing TiBw/Ti6Al4V Composite Tubes with a Quasi-Continuous Reinforced Structure
Previous Article in Special Issue
Electrodeposited Porous Mn1.5Co1.5O4/Ni Composite Electrodes for High-Voltage Asymmetric Supercapacitors
Article Menu
Issue 4 (April) cover image

Export Article

Open AccessArticle
Materials 2017, 10(4), 376; doi:10.3390/ma10040376

Effects of Electrospun Carbon Nanofibers’ Interlayers on High-Performance Lithium–Sulfur Batteries

1
Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
2
State Key Laboratory of Power System, Tsinghua University, Beijing 100084, China
3
Department of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China
4
Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Received: 26 January 2017 / Revised: 20 March 2017 / Accepted: 21 March 2017 / Published: 31 March 2017
(This article belongs to the Special Issue Materials for Electrochemical Capacitors and Batteries)
View Full-Text   |   Download PDF [10367 KB, uploaded 4 April 2017]   |  

Abstract

Two different interlayers were introduced in lithium–sulfur batteries to improve the cycling stability with sulfur loading as high as 80% of total mass of cathode. Melamine was recommended as a nitrogen-rich (N-rich) amine component to synthesize a modified polyacrylic acid (MPAA). The electrospun MPAA was carbonized into N-rich carbon nanofibers, which were used as cathode interlayers, while carbon nanofibers from PAA without melamine was used as an anode interlayer. At the rate of 0.1 C, the initial discharge capacity with two interlayers was 983 mAh g−1, and faded down to 651 mAh g−1 after 100 cycles with the coulombic efficiency of 95.4%. At the rate of 1 C, the discharge capacity was kept to 380 mAh g−1 after 600 cycles with a coulombic efficiency of 98.8%. It apparently demonstrated that the cathode interlayer is extremely effective at shutting down the migration of polysulfide ions. The anode interlayer induced the lithium ions to form uniform lithium metal deposits confined on the fiber surface and in the bulk to strengthen the cycling stability of the lithium metal anode. View Full-Text
Keywords: lithium–sulfur battery; carbon nanofibers interlayer; suppress lithium dendrite; high sulfur loading lithium–sulfur battery; carbon nanofibers interlayer; suppress lithium dendrite; high sulfur loading
Figures

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).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Gao, T.; Le, T.; Yang, Y.; Yu, Z.; Huang, Z.; Kang, F. Effects of Electrospun Carbon Nanofibers’ Interlayers on High-Performance Lithium–Sulfur Batteries. Materials 2017, 10, 376.

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

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top