自发形成的界面结构促进无树枝状晶的锂金属电池的发展

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2024-09-17 DOI:10.1016/j.surfin.2024.105124

Lehao Pan , Fengquan Liu , Tianqi Xiang , Chang Dong , Tao You , Yuying Zhang , Chen Wang , Lin Li

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引用次数: 0

摘要

本文采用一种简单的策略制备了一种自发形成的具有改性球形结构的固体电解质界面（SEI）层。己内酯（CL）在金属锂的触发下原位聚合成聚己内酯（PCL），经过再结晶处理后在锂表面变成球形分布。自发形成的球形结构抑制了锂枝晶的生长，促进了锂的均匀沉积。锂||锂对称电池在电流密度为 0.5 至 1.0 mA cm-2 时具有稳定的电镀/剥离行为，并表现出卓越的循环稳定性。这项研究为抑制锂枝晶的生长和建立稳定的电解质/金属阳极界面提供了灵感。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Spontaneously formed interfacial structure boosting dendrite-free Li metal batteries

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Spontaneously formed interfacial structure boosting dendrite-free Li metal batteries

Herein a spontaneously formed solid electrolyte interface (SEI) layer with modified spherical structure is prepared by a simple strategy. Caprolactone (CL) is in-situ polymerized to polycaprolactone (PCL) after being triggered by Li metal, and turned into spherical distribution at the surface of Li after recrystallization treatment. Spontaneously formed spherical structure restrains the growth of Li dendrites and boosts homogeneous Li deposition. The Li||Li symmetrical cells present stable plating/stripping behavior at current density of 0.5 to 1.0 mA cm⁻² and exhibit excellent cycling stability. This work provides inspiration for restraining the growth of Li dendrites and building stable electrolyte/metal anode interfaces.

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.