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25 October 2023 ZnO nanodots on graphene for lithium-ion energy storage
Zhuoyu Yan, Yao Chen
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Proceedings Volume 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023); 128013O (2023) https://doi.org/10.1117/12.3007329
Event: Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 2023, Dalian, China
Abstract
Graphene is a novel two-dimensional material that could be used as an electrode material for lithium-ion batteries. However, the graphene folds and accumulates due to the interlayer van der Waals force, which severely affects the performance of graphene. In this work, mono-dispersed ZnO nanodots with the average size of 2.4 nm have been pinpointed on defects of graphene oxide by the homogeneous precipitation reaction between overdosed Zn2+ ions and N,N-Dimethylformamide. When used as the anode material of lithium-ion battery (LIBs), it shows good cycle stability and rate performance. After 350 cycles, the specific reversible capacity still reaches 978 mAh·g−1 , which is 76% of the initial reversible value. This work offers a general strategy to pinpoint well-distributed metal oxide nanodots on graphene defects.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Zhuoyu Yan and Yao Chen "ZnO nanodots on graphene for lithium-ion energy storage", Proc. SPIE 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 128013O (25 October 2023); https://doi.org/10.1117/12.3007329
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KEYWORDS
Graphene
Zinc oxide
Ions
Graphite oxide
Batteries
Lithium
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