Achieving burst Li+ channels via quasi-two-dimensional fluorinated metal-organic framework modulating functionalized interface

Lingchen Kong, Yu Li, Cong Peng, Ziyue Zhao, Junwei Xiao, Yimin Zhao and Wei Feng ()
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Lingchen Kong: Tianjin University
Yu Li: Beijing University of Chemical Technology
Cong Peng: Beijing University of Chemical Technology
Ziyue Zhao: Tianjin University
Junwei Xiao: Tianjin University
Yimin Zhao: Tianjin University
Wei Feng: Tianjin University

Nature Communications, 2025, vol. 16, issue 1, 1-15

Abstract: Abstract The development of disordered Li dendrite and the adverse reaction between Li and electrolyte impede practical use of Li metal batteries (LMB). Herein, we propose quasi-two-dimensional fluorinated metal-organic framework carbon (q2D-FcMOF) that is utilized to construct artificial solid electrolyte interface (ASEI) to achieve robust interfacial protective double-layer. The outer organic layer provides ample space for Li deposition, while the inner inorganic LiF layer promotes conduction of Li+ and blocks electron transport. Metal clusters within the hybrid layer are uniformly dispersed, encouraging Li+ to cluster around metal active sites that are thermodynamically compatible with Li. Consequently, q2D-FcZ8@Li symmetrical batteries demonstrate an ultralong cycle life over 3600 h. When paried with commercial cathodes, the cells exhibite cyclability under conditions of high-loading, lean-electrolyte, even exposure to air for some time. This research suggests an effective method for fabricating ASEI using 2D quasi-ordered superstructure MOF NPs, which is expected to the development of LMB.

Date: 2025
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DOI: 10.1038/s41467-025-57106-z

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