Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/130526
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Type: Journal article
Title: Lithium metal electrode with increased air stability and robust solid electrolyte interphase realized by silane coupling agent modification
Author: Wang, Y.
Wang, Z.
Zhao, L.
Fan, Q.
Zeng, X.
Liu, S.
Pang, W.K.
He, Y.B.
Guo, Z.
Citation: Advanced Materials, 2021; 33(14):2008133-1-2008133-9
Publisher: Wiley
Issue Date: 2021
ISSN: 0935-9648
1521-4095
Statement of
Responsibility: 
Yanyan Wang, Zhijie Wang, Liang Zhao, Qining Fan, Xiaohui Zeng, Sailin Liu ... et al.
Abstract: The quality of the solid electrolyte interphase (SEI) layer is the decisive factor for the electrochemical performance of Li-metal-based batteries. Due to the absence of effective bonding, a natural SEI layer may exfoliate from the Li anode during interfacial fluctuations. Here, a silane coupling agent is introduced to serve as an adhesion promoter to bridge these two dissimilar materials via both chemical bonding and physical intertwining effects. Its inorganic reactive groups can combine with the Li substrate by forming LiOSi bonds, while organic functional groups can take part in the formation of the SEI layer and thereby bond with SEI components. Li metal electrodes with silane coupling agent modification exhibit excellent electrochemical performance, even under extreme testing conditions. This modification layer with dense structure could also protect the Li metal from corrosion by air, evidenced by the comparable electrochemical activity of the modified Li metal electrodes even after being exposed in air for 2 h. This design provides a promising pathway for the development of Li metal electrodes that will be stable both in electrolyte and in air.
Keywords: air-stable Li metal electrodes
dendrite free anodes
silane coupling agents
solid electrolyte interphase reinforcement
Rights: © Wiley-VCH GmbH
DOI: 10.1002/adma.202008133
Grant ID: http://purl.org/au-research/grants/arc/LP160101629
http://purl.org/au-research/grants/arc/LE120100104
http://purl.org/au-research/grants/arc/DP200101862
http://purl.org/au-research/grants/arc/DP210101486
http://purl.org/au-research/grants/arc/LE180100141
Appears in Collections:Aurora harvest 8
Chemical Engineering publications

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