NDLI: Etched ion-track membranes as tailored separators in Li–S batteries

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Etched ion-track membranes as tailored separators in Li–S batteries

Content Provider	Scilit
Author	Lee, Pui Lap Jacob Thangavel, Vigneshwaran Guery, Claude Trautmann, Christina Toimil-Molares, Maria Eugenia Morcrette, Mathieu
Copyright Year	2021
Description	Journal: Nanotechnology Lithium–sulfur (Li–S) batteries are considered a promising next generation alternative to lithium-ion batteries for energy storage systems due to its high energy density. However, several challenges, such as the polysulfide redox shuttle causing self-discharge of the battery, remain unresolved. In this paper, we explore the use of polymer etched ion-track membranes as separators in Li–S batteries to mitigate the redox shuttle effect. Compared to commercial separators, their unique advantages lie in their very narrow pore size distribution, and the possibility to tailor and optimize the density, geometry, and diameter of the nanopores in an independent manner. Various polyethylene terephthalate membranes with diameters between 22 and 198 nm and different porosities were successfully integrated into Li–S coin cells. The reported coulombic efficiency of up to 97% with minor reduction in capacity opens a pathway to potentially address the polysulfide redox shuttle in Li–S batteries using tailored membranes.
Related Links	https://iopscience.iop.org/article/10.1088/1361-6528/ac04a3/pdf
ISSN	09574484
e-ISSN	13616528
DOI	10.1088/1361-6528/ac04a3
Journal	Nanotechnology
Issue Number	36
Volume Number	32
Language	English
Publisher	IOP Publishing
Publisher Date	2021-05-25
Access Restriction	Open
Subject Keyword	Journal: Nanotechnology Lithium-sulfur Battery Battery Separator Etched Ion Track Membrane Polyethylene Terephthalate Polysulfide Redox Shuttle
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering Bioengineering Electrical and Electronic Engineering

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