Authors
Lan Zhang, Yang Li, Shuai Wu, Jiang-Feng Ren, Xiao Ouyang, Jie Wu, Lin Chen, Wei-Bo Hua, Jia-Kun Wu, Wei Cheng, Xiao Chen, Bin Liao
Published in
Advanced materials (Deerfield Beach, Fla.). Pages e73795. Jun 27, 2026. Epub Jun 27, 2026.
Abstract
Lithium metal anode faces formidable challenges from uncontrollable dendrite growth and unstable solid-electrolyte interphase (SEI). Interface engineering of the current collectors (CCs) or lithium anodes presents a viable solution. We propose engineering the intrinsic microstructure of coatings to precisely construct interlayers that are both lithiophilic and possess rapid kinetics. A strategy using ion beam deposition (IBD) technology to craft ZnMgSn films with composite microstructures on commercial Cu CCs and lithium foils is reported. This artificial interphase not only exhibits a strongly lithium adsorption energy, but also significantly reduces the diffusion barrier for lithium atoms, thereby synergistically enabling uniform lithium plating. Crucially, this interphase promotes the in-situ formation of a mechanically robust, bilayer SEI rich in LiF, which can effectively accommodate volume changes during cycling. As a result, the ZnMgSn@Cu CC symmetric cell achieves an ultralong lifespan of over 11000 h. The full cell shows a capacity retention of 85.13% after 130 cycles at 5C. The modified lithium anode maintains over 80% capacity after 620 cycles at 1C. This work not only provides an efficient modification strategy but also offers profound insights into the microscopic design principles for an ideal lithium metal interphase, paving the way for practical lithium metal batteries.
PMID:
42365436
Bibliographic data and abstract were imported from PubMed on 28 Jun 2026.
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