A Perspective on interfacial engineering of lithium metal anodes and beyond

Yan, Qizhang; Whang, Grace; Wei, Ziyang; Ko, Shu-Ting; Sautet, Philippe; Tolbert, Sarah H.; Dunn, Bruce S.; Luo, Jian

doi:10.1063/5.0018417

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A Perspective on interfacial engineering of lithium metal anodes and beyond

Yan, Qizhang·Whang, Grace·Wei, Ziyang·Ko, Shu-Ting·Sautet, Philippe·Tolbert, Sarah H.·Dunn, Bruce S.·Luo, Jian

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Abstract

This Perspective reviews interfacial engineering of lithium metal anodes. Critical issues and open scientific questions related to coatings on the lithium metal anode are discussed. Essential features for ideal coatings, especially those that can potentially enable lithium plating underneath the coating, are highlighted. While most existing approaches use kinetic control to regulate the coating thickness, here we offer a Perspective on thermodynamically controlled interfacial engineering, focusing on spontaneously formed 2D interfacial phases (also known as “complexions”). This approach has been applied to other battery systems but has yet to be realized for lithium metal anodes.

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25 ENERGY STORAGE Battery system Chemical elements Crystallographic defects Crystallography Density functional theory Electrolytes Ionic conductivity Materials treatment Phase transitions Surface physics

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Yan, Qizhang, Whang, Grace, Wei, Ziyang, Ko, Shu-Ting, Sautet, Philippe, Tolbert, Sarah H., Dunn, Bruce S., Luo, Jian. 2020-08-24. A Perspective on interfacial engineering of lithium metal anodes and beyond. https://doi.org/10.1063/5.0018417

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