原位形成的摩擦膜作为稳定锂金属阳极的有效有机/无机杂化中间层。

IF 31.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters Pub Date : 2023-10-24 DOI:10.1007/s40820-023-01210-6

Shaozhen Huang, Kecheng Long, Yuejiao Chen, Tuoya Naren, Piao Qing, Xiaobo Ji, Weifeng Wei, Zhibin Wu, Libao Chen

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引用次数: 0

摘要

锂金属阳极的实际应用受到不受控制的枝晶生长和副反应的限制。在此，我们提出了一种新的摩擦诱导策略来生产高性能薄锂阳极(Li@CFO)。通过含氟聚合物润滑脂和Li带材在轧制过程中的原位摩擦反应，在Li金属上形成了坚固的有机/无机杂化中间层（亲锂LiF/LiC6骨架杂化-CF2-O-CF2-链）。衍生的界面通过减轻副反应和降低界面处的溶剂化程度，有助于可逆的Li电镀/剥离行为。这个Li@CFO||Li@CFO即使在苛刻的条件下（18.0mAcm-2和3.0mAh cm-2），对称电池也表现出5600小时（1.0mAhcm-2和1.0mAh cm-2）和1350次循环的显著寿命。当与高负载LiFePO4阴极配对时，全电池在1C下持续450多次循环，高容量保持率为99.9%。这项工作为生产高性能薄LMA提供了一种新的摩擦诱导策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

In Situ Formed Tribofilms as Efficient Organic/Inorganic Hybrid Interlayers for Stabilizing Lithium Metal Anodes

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In Situ Formed Tribofilms as Efficient Organic/Inorganic Hybrid Interlayers for Stabilizing Lithium Metal Anodes

Highlights

The robust organic/inorganic hybrid interlayer derived from in situ formed tribofilms were fabricated by using a scalable rolling method.
The interlayer facilitates dendrite-free lithium metal anodes by building local de-solvation environments near the interface and inhibiting both dendrite growth and electrolytes corrosion.
The symmetrical cell exhibits a remarkable lifespan of 5,600 h (1.0 mA cm^-2 and 1.0 mAh cm^-2) and 1,350 cycles even at a harsh condition (18.0 mA cm^-2 and 3.0 mAh cm^-2).

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

42.40

自引率

4.90%

发文量

715

审稿时长

13 weeks

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary and open-access journal that focus on science, experiments, engineering, technologies and applications of nano- or microscale structure and system in physics, chemistry, biology, material science, pharmacy and their expanding interfaces with at least one dimension ranging from a few sub-nanometers to a few hundreds of micrometers. Especially, emphasize the bottom-up approach in the length scale from nano to micro since the key for nanotechnology to reach industrial applications is to assemble, to modify, and to control nanostructure in micro scale. The aim is to provide a publishing platform crossing the boundaries, from nano to micro, and from science to technologies.