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Advanced Materials for Energy Storage Lab.

Journal Articles

2026 Artificial solid electrolyte interphase sustaining persistent lithiophilicity for long-lived lithium metal electrodes

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작성자 AMESL 작성일 26-05-29 19:19

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Author
Jong Hwan Lim†, Jin-Hyuk Kang†, Hyun Kyong Shon, Jin Gyeong Son, Ju Hwang Kim, Jaewoo Lee, Jin-hee Bae, Seung-Wook Baek, Ho Won Jang, Hyeokjun Park* and Sun Hwa Park*
Journal
Energy Storage Materials
Vol
89
Page
105273
Year
2026

Artificial interphases have been extensively explored to mitigate dendritic Li growth and enhance cycle longevity of Li metal batteries. Among various design parameters, lithiophilicity has been considered essential for reducing nucleation overpotentials and promoting uniform Li growth; however, the long-term stability and functional persistence of lithiophilic interphases under extended cycling remain questionable. Herein, we present a hybrid artificial interphase architecture that imparts persistent lithiophilicity and mechanical integrity for long-term stabilization of Li metal electrodes. The interphase is engineered by embedding indium fluoride (InF₃), a prototypical lithiophilic compound, within a porous Li phosphate (Li₃PO₄) matrix formed in situ on the Li surface. This dual-phase structure effectively mitigates the structural and chemical instability of conventional lithiophilic layers, yielding enhanced cycling properties in Li symmetric cells over 1,400 cycles at a large current density of 5 mA cm-2 with an utilization of 1 mAh cm-2. Post-mortem analyses reveal that the hybrid interphase retains its chemical composition and microstructural robustness, thereby preserving homogeneous charge transfer and Li deposition behavior during cycling. This finding highlights a rational interfacial design strategy that bridges lithiophilicity and structural durability, paving the way toward practical, long-lived Li metal batteries.