Inhibition of Vanadium Cathodes Dissolution in Aqueous Zn-Ion Batteries
© 2024 The Authors. Advanced Materials published by Wiley‐VCH GmbH..
Aqueous zinc-ion batteries (AZIBs) have experienced a rapid surge in popularity, as evident from the extensive research with over 30 000 articles published in the past 5 years. Previous studies on AZIBs have showcased impressive long-cycle stability at high current densities, achieving thousands or tens of thousands of cycles. However, the practical stability of AZIBs at low current densities (<1C) is restricted to merely 50-100 cycles due to intensified cathode dissolution. This genuine limitation poses a considerable challenge to their transition from the laboratory to the industry. In this study, leveraging density functional theory (DFT) calculations, an artificial interphase that achieves both hydrophobicity and restriction of the outward penetration of dissolved vanadium cations, thereby shifting the reaction equilibrium and suppressing the vanadium dissolution following Le Chatelier's principle, is described. The approach has resulted in one of the best cycling stabilities to date, with no noticeable capacity fading after more than 200 cycles (≈720 h) at 200 mA g-1 (0.47C). These findings represent a significant advance in the design of ultrastable cathodes for aqueous batteries and accelerate the industrialization of aqueous zinc-ion batteries.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:36 |
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| Enthalten in: |
Advanced materials (Deerfield Beach, Fla.) - 36(2024), 14 vom: 02. Apr., Seite e2310645 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Dai, Yuhang [VerfasserIn] |
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| Links: |
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| Themen: |
Electrode dissolution |
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| Anmerkungen: |
Date Revised 04.04.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1002/adma.202310645 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Aqueous zinc-ion batteries (AZIBs) have experienced a rapid surge in popularity, as evident from the extensive research with over 30 000 articles published in the past 5 years. Previous studies on AZIBs have showcased impressive long-cycle stability at high current densities, achieving thousands or tens of thousands of cycles. However, the practical stability of AZIBs at low current densities (<1C) is restricted to merely 50-100 cycles due to intensified cathode dissolution. This genuine limitation poses a considerable challenge to their transition from the laboratory to the industry. In this study, leveraging density functional theory (DFT) calculations, an artificial interphase that achieves both hydrophobicity and restriction of the outward penetration of dissolved vanadium cations, thereby shifting the reaction equilibrium and suppressing the vanadium dissolution following Le Chatelier's principle, is described. The approach has resulted in one of the best cycling stabilities to date, with no noticeable capacity fading after more than 200 cycles (≈720 h) at 200 mA g-1 (0.47C). These findings represent a significant advance in the design of ultrastable cathodes for aqueous batteries and accelerate the industrialization of aqueous zinc-ion batteries | ||
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| 650 | 4 | |a zinc‐ion batteries | |
| 700 | 1 | |a Zhang, Chengyi |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Jianwei |e verfasserin |4 aut | |
| 700 | 1 | |a Gao, Xuan |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Ping |e verfasserin |4 aut | |
| 700 | 1 | |a Ye, Chumei |e verfasserin |4 aut | |
| 700 | 1 | |a He, Hongzhen |e verfasserin |4 aut | |
| 700 | 1 | |a Zhu, Jiexin |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Ruwei |e verfasserin |4 aut | |
| 700 | 1 | |a Zong, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Fei |e verfasserin |4 aut | |
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| 700 | 1 | |a Brett, Dan J L |e verfasserin |4 aut | |
| 700 | 1 | |a Shearing, Paul R |e verfasserin |4 aut | |
| 700 | 1 | |a Mai, Liqiang |e verfasserin |4 aut | |
| 700 | 1 | |a He, Guanjie |e verfasserin |4 aut | |
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