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Highly porous carbon aerogel-based cathode for high energy Lithium - Sulphur batteries

Schwan, Marina and Schettler, Jessica and Nojabaee, Maryam and Rommel, Tobias and Wagner, Norbert and Friedrich, Kaspar Andreas and Milow, Barbara (2022) Highly porous carbon aerogel-based cathode for high energy Lithium - Sulphur batteries. Advanced Automotive Battery Conference, 13.-15.06.2022, Online.

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Lithium -sulfur batteries (Li-S) are among the most promising candidates for alternative energy storage systems due to their high theoretical gravimetric energy density of up to 2600 Wh/kg. Despite the advantages of the Li-S battery, sulfur-based cathodes still pose challenges such as a limited accessibility of sulfur, significant volumetric changes during the electrochemical reaction and a high solubility of polysulfide intermediates in the electrolyte. To address these challenges, novel aerogel-based cathode materials were developed. Carbon aerogels (CAs), produced by carbonization of elastically deformable organic aerogels, exhibit tunable and porous structures (porosities up to 97%), high surface areas (500-3500 m²/g), large pore volumes (0.1-2.5 cm³/g), and significant electrical conductivities (80-150 S/m). Their microstructures are adjustable by the synthesis of organic aerogels and subsequent carbonization. Moreover, the elastic compressibility of CAs prevents the formation of cracks as a result of changes to the sulfur volume.

Item URL in elib:https://elib.dlr.de/187917/
Document Type:Conference or Workshop Item (Poster)
Title:Highly porous carbon aerogel-based cathode for high energy Lithium - Sulphur batteries
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schwan, MarinaMarina.Schwan (at) dlr.deUNSPECIFIED
Schettler, JessicaJessica.Schettler (at) dlr.deUNSPECIFIED
Nojabaee, MaryamMaryam.Nojabaee (at) dlr.deUNSPECIFIED
Rommel, TobiasT.Rommel (at) dlr.deUNSPECIFIED
Wagner, NorbertNorbert.Wagner (at) dlr.dehttps://orcid.org/0000-0002-2596-8689
Friedrich, Kaspar AndreasAndreas.Friedrich (at) dlr.deUNSPECIFIED
Milow, BarbaraBarbara.Milow (at) dlr.dehttps://orcid.org/0000-0002-6350-7728
Date:June 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Carbon aerogels, Lithium-sulfur battery, highly microporous cathode material
Event Title:Advanced Automotive Battery Conference
Event Location:Online
Event Type:international Conference
Event Dates:13.-15.06.2022
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 VS - Combustion Systems
DLR - Research theme (Project):E - Materials for Electrochemical Energy Storage
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Aerogels and Aerogel Composites
Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Schwan, Marina
Deposited On:07 Sep 2022 08:34
Last Modified:07 Sep 2022 08:34

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