- Treffer 1 von 1
Efficient sulfur host based on yolk-shell iron oxide/sulfide-carbon nanospindles for lithium-sulfur batteries
- Numerous nanostructured materials have been reported as efficient sulfur hosts to suppress the problematic "shuttling" of lithium polysulfides (LiPSs) in lithium-sulfur (Li-S) batteries. However, direct comparison of these materials in their efficiency of suppressing LiPSs shuttling is challenging, owing to the structural and morphological differences between individual materials. This study introduces a simple route to synthesize a series of sulfur host materials with the same yolk-shell nanospindle morphology but tunable compositions (Fe3O4, FeS, or FeS2), which allows for a systematic investigation into the specific effect of chemical composition on the electrochemical performances of Li-S batteries. Among them, the S/FeS2-C electrode exhibits the best performance and delivers an initial capacity of 877.6 mAh g(-1) at 0.5 C with a retention ratio of 86.7 % after 350 cycles. This approach can also be extended to the optimization of materials for other functionalities and applications.
Verfasserangaben: | Dongjiu XieORCiDGND, Shilin MeiGND, Yaolin Xu, Ting QuanGND, Eneli Haerk, Zdravko KochovskiORCiD, Yan LuORCiDGND |
---|---|
DOI: | https://doi.org/10.1002/cssc.202002731 |
ISSN: | 1864-5631 |
ISSN: | 1864-564X |
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/33440068 |
Titel des übergeordneten Werks (Englisch): | ChemSusChem : chemistry, sustainability, energy, materials |
Verlag: | Wiley-VCH |
Verlagsort: | Weinheim |
Publikationstyp: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Datum der Erstveröffentlichung: | 13.01.2021 |
Erscheinungsjahr: | 2021 |
Datum der Freischaltung: | 27.11.2023 |
Freies Schlagwort / Tag: | batteries; electrode materials; lithium sulfides; nanostructures; yolk-shell |
Band: | 14 |
Ausgabe: | 5 |
Seitenanzahl: | 10 |
Erste Seite: | 1404 |
Letzte Seite: | 1413 |
Fördernde Institution: | Humboldt Research Fellowship for Postdoctoral Researchers from the Alexander von Humboldt Foundation; CSC scholarship; Projekt DEAL |
Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
Peer Review: | Referiert |
Publikationsweg: | Open Access / Hybrid Open-Access |
Lizenz (Deutsch): | CC-BY - Namensnennung 4.0 International |