A Tellurium-Boosted High-Areal-Capacity Zinc-Sulfur Battery
© 2024 The Authors. Advanced Science published by Wiley‐VCH GmbH..
Aqueous rechargeable zinc-sulfur (Zn-S) batteries are a promising, cost-effective, and high-capacity energy storage technology. Still, they are challenged by the poor reversibility of S cathodes, sluggish redox kinetics, low S utilization, and unsatisfactory areal capacity. This work develops a facile strategy to achieve an appealing high-areal-capacity (above 5 mAh cm-2) Zn-S battery by molecular-level regulation between S and high-electrical-conductivity tellurium (Te). The incorporation of Te as a dopant allows for manipulation of the Zn-S electrochemistry, resulting in accelerated redox conversion, and enhanced S utilization. Meanwhile, accompanied by the S-ZnS conversion, Te is converted to zinc telluride during the discharge process, as revealed by ex-situ characterizations. This additional redox reaction contributes to the S cathode's total excellent discharge capacity. With this unique cathode structure design, the carbon-confined TeS cathode (denoted as Te1S7/C) delivers a high reversible capacity of 1335.0 mAh g-1 at 0.1 A g-1 with a mass loading of 4.22 mg cm-2, corresponding to a remarkable areal capacity of 5.64 mAh cm-2. Notably, a hybrid electrolyte design uplifts discharge plateau, reduces overpotential, suppresses Zn dendrites growth, and extends the calendar life of Zn-Te1S7 batteries. This study provides a rational S cathode structure to realize high-capacity Zn-S batteries for practical applications.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
Advanced science (Weinheim, Baden-Wurttemberg, Germany) - (2024) vom: 02. Apr., Seite e2308580 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhang, Yue [VerfasserIn] |
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| Links: |
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| Themen: |
Areal capacity |
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| Anmerkungen: |
Date Revised 03.04.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1002/advs.202308580 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM370558863 |
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| 520 | |a © 2024 The Authors. Advanced Science published by Wiley‐VCH GmbH. | ||
| 520 | |a Aqueous rechargeable zinc-sulfur (Zn-S) batteries are a promising, cost-effective, and high-capacity energy storage technology. Still, they are challenged by the poor reversibility of S cathodes, sluggish redox kinetics, low S utilization, and unsatisfactory areal capacity. This work develops a facile strategy to achieve an appealing high-areal-capacity (above 5 mAh cm-2) Zn-S battery by molecular-level regulation between S and high-electrical-conductivity tellurium (Te). The incorporation of Te as a dopant allows for manipulation of the Zn-S electrochemistry, resulting in accelerated redox conversion, and enhanced S utilization. Meanwhile, accompanied by the S-ZnS conversion, Te is converted to zinc telluride during the discharge process, as revealed by ex-situ characterizations. This additional redox reaction contributes to the S cathode's total excellent discharge capacity. With this unique cathode structure design, the carbon-confined TeS cathode (denoted as Te1S7/C) delivers a high reversible capacity of 1335.0 mAh g-1 at 0.1 A g-1 with a mass loading of 4.22 mg cm-2, corresponding to a remarkable areal capacity of 5.64 mAh cm-2. Notably, a hybrid electrolyte design uplifts discharge plateau, reduces overpotential, suppresses Zn dendrites growth, and extends the calendar life of Zn-Te1S7 batteries. This study provides a rational S cathode structure to realize high-capacity Zn-S batteries for practical applications | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Zn dendrites | |
| 650 | 4 | |a areal capacity | |
| 650 | 4 | |a hybrid electrolyte | |
| 650 | 4 | |a hydrogen evolution | |
| 650 | 4 | |a redox kinetics | |
| 650 | 4 | |a tellurium‐sulfur cathode | |
| 650 | 4 | |a zinc‐sulfur battery | |
| 700 | 1 | |a Amardeep, Amardeep |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Zhenrui |e verfasserin |4 aut | |
| 700 | 1 | |a Tao, Li |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Jia |e verfasserin |4 aut | |
| 700 | 1 | |a Freschi, Donald J |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Jian |e verfasserin |4 aut | |
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