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High‐Entropy Sulfides as Electrode Materials for Li‐Ion Batteries

Lin, Ling ; Wang, Kai ; Sarkar, Abhishek ; Njel, Christian ; Karkera, Guruprakash ; Wang, Qingsong ; Azmi, Raheleh ; Fichtner, Maximilian ; Hahn, Horst ; Schweidler, Simon ; Breitung, Ben (2022)
High‐Entropy Sulfides as Electrode Materials for Li‐Ion Batteries.
In: Advanced Energy Materials, 2022, 12 (8)
doi: 10.26083/tuprints-00021540
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: High‐Entropy Sulfides as Electrode Materials for Li‐Ion Batteries
Language: English
Date: 1 July 2022
Place of Publication: Darmstadt
Year of primary publication: 2022
Publisher: Wiley-VCH
Journal or Publication Title: Advanced Energy Materials
Volume of the journal: 12
Issue Number: 8
Collation: 11 Seiten
DOI: 10.26083/tuprints-00021540
Corresponding Links:
Origin: Secondary publication DeepGreen

High‐entropy sulfides (HESs) containing 5 equiatomic transition metals (M), with different M:S ratios, are prepared by a facile one‐step mechanochemical approach. Two new types of single‐phase HESs with pyrite (Pa‐3) and orthorhombic (Pnma) structures are obtained and demonstrate a homogeneously mixed solid solution. The straightforward synthesis method can easily tune the desired metal to sulfur ratio for HESs with different stoichiometries, by utilizing the respective metal sulfides, even pure metals, and sulfur as precursor chemicals. The structural details and solid solution nature of HESs are studied by X‐ray diffraction, transmission electron microscopy, energy‐dispersive X‐ray spectroscopy, electron energy loss spectroscopy, X‐ray photoelectron spectroscopy, inductively coupled plasma optical emission spectroscopy, and Mössbauer spectroscopy. Since transition metal sulfides are a very versatile material class, here the application of HESs is presented as electrode materials for reversible electrochemical energy storage, in which the HESs show high specific capacities and excellent rate capabilities in secondary Li‐ion batteries.

Uncontrolled Keywords: high‐entropy materials, high‐entropy sulfides, lithium batteries, mechanochemical synthesis
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-215409
Classification DDC: 600 Technology, medicine, applied sciences > 600 Technology
600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Joint Research Laboratory Nanomaterials
Date Deposited: 01 Jul 2022 11:38
Last Modified: 14 Nov 2023 19:04
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21540
PPN: 499643674
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