TU Darmstadt / ULB / TUprints

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

Lee, Pui Lap Jacob ; Thangavel, Vigneshwaran ; Guery, Claude ; Trautmann, Christina ; Toimil-Molares, Maria Eugenia ; Morcrette, Mathieu (2024)
Etched ion-track membranes as tailored separators in Li–S batteries.
In: Nanotechnology, 2021, 32 (36)
doi: 10.26083/tuprints-00020481
Article, Secondary publication, Publisher's Version

[img] Text
Copyright Information: CC BY 4.0 International - Creative Commons, Attribution.

Download (1MB)
Item Type: Article
Type of entry: Secondary publication
Title: Etched ion-track membranes as tailored separators in Li–S batteries
Language: English
Date: 25 March 2024
Place of Publication: Darmstadt
Year of primary publication: 2021
Place of primary publication: Bristol
Publisher: IOP Publishing
Journal or Publication Title: Nanotechnology
Volume of the journal: 32
Issue Number: 36
Collation: 9 Seiten
DOI: 10.26083/tuprints-00020481
Corresponding Links:
Origin: Secondary publication DeepGreen

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.

Uncontrolled Keywords: lithium–sulfur battery, polysulfide redox shuttle, etched ion track membrane, polyethylene terephthalate, PET, battery separator
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-204817
Classification DDC: 500 Science and mathematics > 530 Physics
500 Science and mathematics > 540 Chemistry
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Ion-Beam-Modified Materials
Date Deposited: 25 Mar 2024 10:24
Last Modified: 28 May 2024 06:22
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20481
PPN: 51862837X
Actions (login required)
View Item View Item