解密锂金属电池元素合金阳极中的锂沉积行为

IF 9.6 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2024-11-22 DOI:10.1021/acs.nanolett.4c03387

Tao Li, Zhiyi Zhao, Guohao Zhao, Bin Zhang, Wenbin Huang, Tianli Wu, Weishang Jia, Jianmin Luo, Ying Xu

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引用次数: 0

摘要

锂（Li）枝晶是开发实用高能锂金属电池最致命的障碍之一，而具有强亲锂性的锂合金基底在引导锂均匀沉积方面引起了越来越多的关注。然而，以往的大多数研究都将锂枝晶抑制与高吸附能紧密联系在一起。然而，锂沉积过程并不仅仅是孤立锂原子的吸附，还需要全面了解界面晶格失配和锂原子扩散的情况。在此，我们从代表界面稳定性和结合强度的粘附工作以及锂的吸附和扩散两方面来探讨锂的沉积行为。研究发现，锂沉积的过电位与附着功成反比，而均匀的锂沉积需要高吸附能和低锂原子扩散阻力。这些详细的关系可为后续的基底开发提供指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Deciphering Lithium Deposition Behavior in Elemental Alloy Anodes for Lithium Metal Batteries

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Deciphering Lithium Deposition Behavior in Elemental Alloy Anodes for Lithium Metal Batteries

Lithium (Li) dendrite is one of the most fatal obstacles for developing practical high energy Li metal batteries, while Li alloy substrates, with strong lithiophilicity, have attracted increasing interest for directing uniform Li deposition. However, most of the previous research studies associated Li dendrite inhibition closely with high adsorption energy. Yet, the Li deposition process is not solely about the adsorption of an isolated Li atom, where a comprehensive understanding of the interfacial lattice mismatch and the Li atom diffusion should also be taken into account. Here, we explore the Li deposition behavior from adhesion work, representing interfacial stability and bonding strength, and both Li adsorption and diffusion. It is found that the overpotential of Li deposition is inversely related to adhesion work, while uniform Li deposition requires a high adsorption energy and low Li atom diffusion barrier. These detailed relationships may offer guidance for subsequent substrate development.

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.