Universität zu Köln

Brune, Veronika ORCID: 0000-0001-5909-621X, Bohr, Christoph ORCID: 0000-0002-8427-8346, Ludwig, Tim ORCID: 0000-0002-3633-805X, Wilhelm, Michael, Hirt, Sebastian Daniel, Fischer, Thomas, Wennig, Sebastian, Oberschachtsiek, Bernd, Ichangi, Arun and Mathur, Sanjay (2022). A novel molecular synthesis route to Li2S loaded carbon fibers for lithium-sulfur batteries. J. Mater. Chem. A, 10 (18). S. 9902 - 9911. CAMBRIDGE: ROYAL SOC CHEMISTRY. ISSN 2050-7496

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Abstract

The synthesis of a novel air-stable molecular precursor (LiSC2H4)(2)NMe enables the formation of the desired 1D lithium sulfide (Li2S) via the electrospinning method under ambient conditions. The solubility of the precursor in polar solvents combined with a common polymer (PVP) allowed a suitable spinning solution to obtain ideal green Li2S loaded fibers. 3D fiber mats of the calcined homogeneous 1D electrospun Li2S/C fibers were characterized by electron microscopy and X-ray powder diffraction analysis. Direct integration of Li2S in an electronically conductive carbon matrix as the cathode obviates the need of elemental lithium as the anode, which is a great advantage against the reported lithium-sulfur batteries. An initial capacity of about 870 mA h g(-1) at C/20, a capacity retention of 73% after 100 cycles at C/10 and a capacity of about 400 mA h g(-1) at 1C were observed for the presented system.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Brune, Veronika UNSPECIFIED orcid.org/0000-0001-5909-621X UNSPECIFIED Bohr, Christoph UNSPECIFIED orcid.org/0000-0002-8427-8346 UNSPECIFIED Ludwig, Tim UNSPECIFIED orcid.org/0000-0002-3633-805X UNSPECIFIED Wilhelm, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED Hirt, Sebastian Daniel UNSPECIFIED UNSPECIFIED UNSPECIFIED Fischer, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED Wennig, Sebastian UNSPECIFIED UNSPECIFIED UNSPECIFIED Oberschachtsiek, Bernd UNSPECIFIED UNSPECIFIED UNSPECIFIED Ichangi, Arun UNSPECIFIED UNSPECIFIED UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-663459
DOI:	10.1039/d2ta00369d
Journal or Publication Title:	J. Mater. Chem. A
Volume:	10
Number:	18
Page Range:	S. 9902 - 9911
Date:	2022
Publisher:	ROYAL SOC CHEMISTRY
Place of Publication:	CAMBRIDGE
ISSN:	2050-7496
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language HIGH-PERFORMANCE; CATHODE MATERIAL; S BATTERIES; COMPOSITES; NANOFIBERS; STORAGE; CHARGE Multiple languages Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/66345