Gradient Graphdiyne Induced Copper and Oxygen Vacancies in Cu0.95 V2 O5 Anodes for Fast-Charging Lithium-Ion Batteries
© 2022 Wiley-VCH GmbH..
Vacancies can significantly affect the performance of metal oxide materials. Here, a gradient graphdiyne (GDY) induced Cu/O-dual-vacancies abundant Cu0.95 V2 O5 GDY heterostructure material has been prepared as a competitive fast-charging anode material. Cu0.95 V2 O5 self-catalyzes the growth of gradient GDY with rich alkyne-alkene complex in the inner layer and rich alkyne bonds in the outer layer, leading to the formation of Cu and O vacancies in Cu0.95 V2 O5 . The synergistic effect of vacancies and gradient GDY results in the electron redistribution at the hetero-interface to drive the generation of a built-in electric field. Thus, the Li-ion transport kinetics, electrochemical reaction reversibility and Li storage sites of Cu0.95 V2 O5 are greatly enhanced. The Cu0.95 V2 O5 @GDY anodes show excellent fast-charging performance with high capacities and negligible capacity decay for 10 000 cycles and 20 000 cycles at extremely high current densities of 5 A g-1 and 10 A g-1 , respectively. Over 30 % of capacity can be delivered in 35 seconds.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:62 |
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| Enthalten in: |
Angewandte Chemie (International ed. in English) - 62(2023), 7 vom: 06. Feb., Seite e202216397 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wang, Fan [VerfasserIn] |
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| Links: |
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| Themen: |
Cu0.95V2O5 |
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| Anmerkungen: |
Date Completed 03.02.2023 Date Revised 03.02.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1002/anie.202216397 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM350293848 |
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| 500 | |a Date Revised 03.02.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a © 2022 Wiley-VCH GmbH. | ||
| 520 | |a Vacancies can significantly affect the performance of metal oxide materials. Here, a gradient graphdiyne (GDY) induced Cu/O-dual-vacancies abundant Cu0.95 V2 O5 GDY heterostructure material has been prepared as a competitive fast-charging anode material. Cu0.95 V2 O5 self-catalyzes the growth of gradient GDY with rich alkyne-alkene complex in the inner layer and rich alkyne bonds in the outer layer, leading to the formation of Cu and O vacancies in Cu0.95 V2 O5 . The synergistic effect of vacancies and gradient GDY results in the electron redistribution at the hetero-interface to drive the generation of a built-in electric field. Thus, the Li-ion transport kinetics, electrochemical reaction reversibility and Li storage sites of Cu0.95 V2 O5 are greatly enhanced. The Cu0.95 V2 O5 @GDY anodes show excellent fast-charging performance with high capacities and negligible capacity decay for 10 000 cycles and 20 000 cycles at extremely high current densities of 5 A g-1 and 10 A g-1 , respectively. Over 30 % of capacity can be delivered in 35 seconds | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Cu0.95V2O5 | |
| 650 | 4 | |a Fast Charging | |
| 650 | 4 | |a Gradient Graphdiyne | |
| 650 | 4 | |a Lithium-Ion Batteries | |
| 650 | 4 | |a Self-Catalysis | |
| 650 | 4 | |a Vacancy | |
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| 700 | 1 | |a Shen, Han |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Zhongqiang |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Guoxing |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Yuliang |e verfasserin |4 aut | |
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