Issue 29, 2016

Two-dimensional Nafion nanoweb anion-shield for improved electrochemical performances of lithium–sulfur batteries

Abstract

We first demonstrate a facile and effective strategy to directly deposit a Nafion nanoweb onto a sulfur cathode to address the challenges underlying in Li–S batteries. The Nafion nanoweb not only blocks the diffusion of polysulfides by electrostatic repulsion but also allows fast Li-ion exchange with the sulfur cathode through the selective protection layer. The Nafion nanoweb-sulfur cathode retained an excellent cycle performance over 200 cycles and delivered an improved rate capability, as compared to a sulfur cathode and a Nafion layer-sulfur cathode.

Graphical abstract: Two-dimensional Nafion nanoweb anion-shield for improved electrochemical performances of lithium–sulfur batteries

Supplementary files

Article information

Article type
Communication
Submitted
20 May 2016
Accepted
23 Jun 2016
First published
23 Jun 2016

J. Mater. Chem. A, 2016,4, 11203-11206

Two-dimensional Nafion nanoweb anion-shield for improved electrochemical performances of lithium–sulfur batteries

J. H. Kim, J. Choi, J. Seo, J. Kwon and U. Paik, J. Mater. Chem. A, 2016, 4, 11203 DOI: 10.1039/C6TA04203A

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