A fast-charging/discharging and long-term stable artificial electrode enabled by space charge storage mechanism

Lithium‐ion batteries with fast-charging/discharging properties are urgently needed for the mass adoption of electric vehicles. Here, we show that fast charging/discharging, long-term stable and high energy charge-storage properties can be realized in an artificial electrode made from a mixed electr...

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Veröffentlicht in:Nature communications Jg. 15; H. 1; S. 3778 - 12
Hauptverfasser: Zhao, Linyi, Wang, Tiansheng, Zuo, Fengkai, Ju, Zhengyu, Li, Yuhao, Li, Qiang, Zhu, Yue, Li, Hongsen, Yu, Guihua
Format: Journal Article
Sprache:Englisch
Veröffentlicht: London Nature Publishing Group UK 06.05.2024
Nature Publishing Group
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Anodes
Charging
Conductors
Current density
Discharge
Electric vehicles
Electrochemistry
Electrode materials
Electrodes
Energy charge
Energy storage
Humanities and Social Sciences
Lithium
Lithium oxides
Lithium-ion batteries
multidisciplinary
Rechargeable batteries
Science
Science (multidisciplinary)
Space charge
ISSN:2041-1723, 2041-1723
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Zusammenfassung:Lithium‐ion batteries with fast-charging/discharging properties are urgently needed for the mass adoption of electric vehicles. Here, we show that fast charging/discharging, long-term stable and high energy charge-storage properties can be realized in an artificial electrode made from a mixed electronic/ionic conductor material (Fe/Li x M, where M = O, F, S, N) enabled by a space charge principle. Particularly, the Fe/Li 2 O electrode is able to be charged/discharged to 126 mAh g −1 in 6 s at a high current density of up to 50 A g −1 , and it also shows stable cycling performance for 30,000 cycles at a current density of 10 A g −1 , with a mass-loading of ~2.5 mg cm −2 of the electrode materials. This study demonstrates the critical role of the space charge storage mechanism in advancing electrochemical energy storage and provides an unconventional perspective for designing high-performance anode materials for lithium-ion batteries. Lithium-ion batteries with fast-charging properties are urgently needed for wide adoption of electric vehicles. Here, the authors show a fast charging/discharging and long-term stable electrode made from a mixed electronic/ionic conductor material enabled by a space charge mechanism.
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ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-024-48215-2