Xie, Fanxuan ; Xiong, Man ; Liu, Jiapeng ; Qian, Jingwen ; Mei, Tao ; Li, Jinghua ; Wang, Jianyin ; Yu, Li ; Hofmann, Jan P. ; Wang, Xianbao (2022)
A Multi‐Functional Separator for Li‐S Batteries: WS₂@C Nanoflowers Catalyze the Rapid Recycling of Lithium Polysulfides by Polar Attraction.
In: ChemElectroChem, 2022, 9 (15)
doi: 10.26083/tuprints-00022445
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
Featuring high theoretical capacity, environmental friendliness and low cost, lithium‐sulfur (Li‐S) batteries become promising alternatives to satisfy the growing demand for energy storage. To boost their energy density for practical application, modified separators are needed to suppress shuttle effects resulting from the solubility of lithium polysulfides (LiPSs). Herein, we modified traditional polypropylene (PP) separators with functional WS₂@C nanoflower composites (WS₂@C‐PP). They can effectively adsorb LiPSs and catalyze their conversion on the edge sites of the WS₂. Also, the unique construction of a carbon layer coating on the WS₂ nanoflowers combines active sites and conducting properties. The material benefits the reversibility of redox reactions and reutilization of active materials. With the WS₂@C‐PP separator, the cell displays improved cycling stability and rate performance. When cycling at 0.1 C, the cell discharges a capacity of up to 1475 mAh g⁻¹, and it contributes 943 mAh g⁻¹ originally at 1 C, with a decay rate of only 0.07 % after 500 cycles. Our work highlights the potential of functional separators to advance the properties of Li‐S batteries.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Xie, Fanxuan ; Xiong, Man ; Liu, Jiapeng ; Qian, Jingwen ; Mei, Tao ; Li, Jinghua ; Wang, Jianyin ; Yu, Li ; Hofmann, Jan P. ; Wang, Xianbao |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | A Multi‐Functional Separator for Li‐S Batteries: WS₂@C Nanoflowers Catalyze the Rapid Recycling of Lithium Polysulfides by Polar Attraction |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | ChemElectroChem |
| Jahrgang/Volume einer Zeitschrift: | 9 |
| (Heft-)Nummer: | 15 |
| Kollation: | 10 Seiten |
| DOI: | 10.26083/tuprints-00022445 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/22445 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | Featuring high theoretical capacity, environmental friendliness and low cost, lithium‐sulfur (Li‐S) batteries become promising alternatives to satisfy the growing demand for energy storage. To boost their energy density for practical application, modified separators are needed to suppress shuttle effects resulting from the solubility of lithium polysulfides (LiPSs). Herein, we modified traditional polypropylene (PP) separators with functional WS₂@C nanoflower composites (WS₂@C‐PP). They can effectively adsorb LiPSs and catalyze their conversion on the edge sites of the WS₂. Also, the unique construction of a carbon layer coating on the WS₂ nanoflowers combines active sites and conducting properties. The material benefits the reversibility of redox reactions and reutilization of active materials. With the WS₂@C‐PP separator, the cell displays improved cycling stability and rate performance. When cycling at 0.1 C, the cell discharges a capacity of up to 1475 mAh g⁻¹, and it contributes 943 mAh g⁻¹ originally at 1 C, with a decay rate of only 0.07 % after 500 cycles. Our work highlights the potential of functional separators to advance the properties of Li‐S batteries. |
| Freie Schlagworte: | catalyzation, flower-like structure, lithium-sulfur battery, synergistic effect, WS₂ nanosheets |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-224457 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Oberflächenforschung |
| Hinterlegungsdatum: | 10 Okt 2022 12:54 |
| Letzte Änderung: | 11 Okt 2022 05:15 |
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| Suche nach Titel in: | TUfind oder in Google |
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- A Multi‐Functional Separator for Li‐S Batteries: WS₂@C Nanoflowers Catalyze the Rapid Recycling of Lithium Polysulfides by Polar Attraction. (deposited 10 Okt 2022 12:54) [Gegenwärtig angezeigt]
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