Coupling a Three-Dimensional Nanopillar and Robust Film to Guide Li-Ion Flux for Dendrite-Free Lithium Metal Anodes
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
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Detail(s)
Original language | English |
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Pages (from-to) | 45416-45425 |
Journal / Publication | ACS Applied Materials and Interfaces |
Volume | 13 |
Issue number | 38 |
Online published | 14 Sept 2021 |
Publication status | Published - 29 Sept 2021 |
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Abstract
Lithium metal batteries with high theoretical capacity critically suffer from low cycling stability and safety issues mostly due to lithium dendrites. Regulating the Li-ion conduction and Li deposition is essential to achieve dendritic-free Li metal anodes. Herein, a synergistic strategy that combines a 3D nanocopper layer and a robust polymer protective layer is proposed. The 3D nanocopper layer in situ formed on the Li surface could achieve a uniform electric field distribution and contribute to reducing the nucleation barrier for Li deposition and refining the grain size of Li crystallites. Meanwhile, the Li-Nafion film with high Li-ion conductivity and good flexibility was used as a protective layer to provide homogeneous ion distribution and adapt to the volume change during the Li deposition. Consequently, the NCuLi∥LiCoO2 full cells exhibited outstanding cycling stability (a capacity retention of 90% over 500 cycles). Our results indicate that the synergistic control of Li-ion conduction and Li deposition is a promising method to achieve dendritic-free Li metal anodes.
Research Area(s)
- 3D nanocopper layer, Li dendrite, Li deposition, Li metal anodes, Li-ion conduction, Li-Nafion
Citation Format(s)
Coupling a Three-Dimensional Nanopillar and Robust Film to Guide Li-Ion Flux for Dendrite-Free Lithium Metal Anodes. / Liao, Kemeng; Li, Zhiqiang; Gu, Shuai et al.
In: ACS Applied Materials and Interfaces, Vol. 13, No. 38, 29.09.2021, p. 45416-45425.
In: ACS Applied Materials and Interfaces, Vol. 13, No. 38, 29.09.2021, p. 45416-45425.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review