Bifunctional Separator with Ultra-Lightweight MnO2 Coating for Highly Stable Lithium-Sulfur Batteries
The severe shuttling behavior in the discharging-charging process largely hampers the commercialization of lithium-sulfur (Li-S) batteries. Herein, we design a bifunctional separator with an ultra-lightweight MnO2 coating to establish strong chemical adsorption barriers for shuttling effect alleviation. The double-sided polar MnO2 layers not only trap the lithium polysulfides through extraordinary chemical bonding but also ensure the uniform Li+ flux on the lithium anode and inhibit the side reaction, resulting in homogeneous plating and stripping to avoid corrosion of the Li anode. Consequently, the assembled Li-S battery with the MnO2-modified separator retains a capacity of 665 mA h g-1 at 1 C after 1000 cycles at the areal sulfur loading of 2.5 mg cm-2, corresponding to only 0.028% capacity decay per cycle. Notably, the areal loading of ultra-lightweight MnO2 coating is as low as 0.007 mg cm-2, facilitating the achievement of a high energy density of Li-S batteries. This work reveals that the polar metal oxide-modified separator can effectively inhibit the shuttle effect and protect the Li anode for high-performance Li-S batteries.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:15 |
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| Enthalten in: |
ACS applied materials & interfaces - 15(2023), 5 vom: 08. Feb., Seite 6877-6887 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Tian, Ya-Wen [VerfasserIn] |
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| Links: |
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| Themen: |
Chemical adsorption |
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| Anmerkungen: |
Date Completed 09.02.2023 Date Revised 09.02.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acsami.2c20461 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM352164557 |
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| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a The severe shuttling behavior in the discharging-charging process largely hampers the commercialization of lithium-sulfur (Li-S) batteries. Herein, we design a bifunctional separator with an ultra-lightweight MnO2 coating to establish strong chemical adsorption barriers for shuttling effect alleviation. The double-sided polar MnO2 layers not only trap the lithium polysulfides through extraordinary chemical bonding but also ensure the uniform Li+ flux on the lithium anode and inhibit the side reaction, resulting in homogeneous plating and stripping to avoid corrosion of the Li anode. Consequently, the assembled Li-S battery with the MnO2-modified separator retains a capacity of 665 mA h g-1 at 1 C after 1000 cycles at the areal sulfur loading of 2.5 mg cm-2, corresponding to only 0.028% capacity decay per cycle. Notably, the areal loading of ultra-lightweight MnO2 coating is as low as 0.007 mg cm-2, facilitating the achievement of a high energy density of Li-S batteries. This work reveals that the polar metal oxide-modified separator can effectively inhibit the shuttle effect and protect the Li anode for high-performance Li-S batteries | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Li dendrites | |
| 650 | 4 | |a MnO2 | |
| 650 | 4 | |a chemical adsorption | |
| 650 | 4 | |a lithium−sulfur batteries | |
| 650 | 4 | |a shuttling effect | |
| 700 | 1 | |a Zhang, Yun-Jing |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Liang |e verfasserin |4 aut | |
| 700 | 1 | |a Dong, Wen-Da |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Rui |e verfasserin |4 aut | |
| 700 | 1 | |a Dong, Pei-Yang |e verfasserin |4 aut | |
| 700 | 1 | |a Yan, Min |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Jing |e verfasserin |4 aut | |
| 700 | 1 | |a Mohamed, Hemdan S H |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Li-Hua |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Su, Bao-Lian |e verfasserin |4 aut | |
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