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Degradation Effects in Metal-Sulfur Batteries

Richter, Raphael and Häcker, Joachim and Zhao-Karger, Zhirong and Danner, Timo and Wagner, Norbert and Fichtner, Maximilian and Friedrich, Kaspar Andreas and Latz, Arnulf (2021) Degradation Effects in Metal-Sulfur Batteries. ACS Applied Energy Materials, 4 (3), pp. 2365-2376. American Chemical Society (ACS). doi: 10.1021/acsaem.0c02888. ISSN 2574-0962.

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Official URL: https://pubs.acs.org/doi/10.1021/acsaem.0c02888

Abstract

Metal–sulfur (Me–S) batteries are one of the most promising battery technologies and might even outperform future Li-ion batteries. However, these systems generally show a relatively fast capacity loss, low power density, and fast self-discharge. Furthermore, the underlying mechanisms are insufficiently understood, making it difficult to systematically improve cell performance. In the present study, we use a pseudo-two-dimensional continuum model to analyze the degradation behavior during cycling of Li–S and Mg–S batteries. The simulations reproduce charge and discharge curves of both systems and allow detailed investigations on the influence of material properties on degradation mechanisms. Special attention is paid to the redistribution of active sulfur during cycling and its effect on long-term stability. Finally, we demonstrate the application of the model for qualitative predictions of battery performance and lifetime of cathode designs with improved sulfur loading.

Item URL in elib:https://elib.dlr.de/147591/
Document Type:Article
Title:Degradation Effects in Metal-Sulfur Batteries
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Richter, RaphaelRaphael.Richter (at) dlr.deUNSPECIFIED
Häcker, JoachimJoachim.Haecker (at) dlr.dehttps://orcid.org/0000-0003-2031-9898
Zhao-Karger, ZhirongKarlsruhe Institute of Technology (KIT)https://orcid.org/0000-0002-7233-9818
Danner, TimoTimo.Danner (at) dlr.dehttps://orcid.org/0000-0003-2336-6059
Wagner, NorbertNorbert.Wagner (at) dlr.dehttps://orcid.org/0000-0002-2596-8689
Fichtner, MaximilianKarlsruhe Institute of Technology (KIT)https://orcid.org/0000-0002-7127-1823
Friedrich, Kaspar AndreasAndreas.Friedrich (at) dlr.deUNSPECIFIED
Latz, ArnulfArnulf.Latz (at) dlr.deUNSPECIFIED
Date:10 March 2021
Journal or Publication Title:ACS Applied Energy Materials
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:4
DOI :10.1021/acsaem.0c02888
Page Range:pp. 2365-2376
Publisher:American Chemical Society (ACS)
ISSN:2574-0962
Status:Published
Keywords:metal−sulfur continuum modeling polysulfide shuttle degradation lithium−sulfur
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:Electrochemical Energy Storage
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Electrochemical Storage
Location: Ulm
Institutes and Institutions:Institute of Engineering Thermodynamics > Computational Electrochemistry
Deposited By: Danner, Timo
Deposited On:23 Dec 2021 21:12
Last Modified:01 Apr 2022 03:00

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