Zincophilic Interfacial Manipulation against Dendrite Growth and Side Reactions for Stable Zn Metal Anodes

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Yinxiang Zeng
  • Zhihao Pei
  • Yan Guo
  • Xiaojun Gu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article numbere202312145
Journal / PublicationAngewandte Chemie - International Edition
Volume62
Issue number45
Online published20 Sept 2023
Publication statusPublished - 6 Nov 2023

Abstract

Constructing multifunctional interphases to suppress the rampant Zn dendrite growth and detrimental side reactions is crucial for Zn anodes. Herein, a phytic acid (PA)-ZnAl coordination compound is demonstrated as a versatile interphase layer to stabilize Zn anodes. The zincophilic PA-ZnAl layer can manipulate Zn2+ flux and promote rapid desolvation kinetics, ensuring the uniform Zn deposition with dendrite-free morphology. Moreover, the robust PA-ZnAl protective layer can effectively inhibit the hydrogen evolution reaction and formation of byproducts, further contributing to the reversible Zn plating/stripping with high Coulombic efficiency. As a result, the Zn@PA-ZnAl electrode shows a lower Zn nucleation overpotential and higher Zn2+ transference number compared with bare Zn. The Zn@PA-ZnAl symmetric cell exhibits a prolonged lifespan of 650 h tested at 5 mA cm−2 and 5 mAh cm−2. Furthermore, the assembled Zn battery full cell based on this Zn@PA-ZnAl anode also delivers decent cycling stability even under harsh conditions. © 2023 Wiley-VCH GmbH.

Research Area(s)

  • Coordination Compounds, Dendrite-Free, Side Reactions, Zincophilic Interphase, Zn Metal Anodes

Citation Format(s)