Constructing a Quasi-Liquid Interphase to Enable Highly Stable Zn-Metal Anode

Junzhang Wang; Zhou Xu; Tengteng Qin; Jintian Wang; Rui Tian; Xingzhong Guo; Zongrong Wang; Zhongkuan Luo; Hui Yang

doi:10.3390/batteries9060328

Batteries (Jun 2023)

Constructing a Quasi-Liquid Interphase to Enable Highly Stable Zn-Metal Anode

Junzhang Wang,
Zhou Xu,
Tengteng Qin,
Jintian Wang,
Rui Tian,
Xingzhong Guo,
Zongrong Wang,
Zhongkuan Luo,
Hui Yang

Affiliations

Junzhang Wang: State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
Zhou Xu: State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
Tengteng Qin: State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
Jintian Wang: State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
Rui Tian: State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
Xingzhong Guo: State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
Zongrong Wang: State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
Zhongkuan Luo: Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310058, China
Hui Yang: State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China

DOI: https://doi.org/10.3390/batteries9060328
Journal volume & issue: Vol. 9, no. 6
p. 328

Abstract

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Rechargeable aqueous Zn-metal batteries have attracted widespread attention owing to their safety and low cost beyond Li-metal batteries. However, due to the lack of the solid electrolyte interphase, problems such as dendrites, side reactions and hydrogen generation severely restrict their commercial applications. Herein, a quasi-liquid interphase (QLI) with a “solid–liquid” property is constructed to stabilize the Zn-metal anode. The synergistic effect of solid and liquid behavior ensures the stable existence of QLI and simultaneously enables the interphase dynamic and self-adaptive to the anode evolution. Electrolyte erosion, Zn2+ diffusion and side reactions are inhibited during long-term cycling after introducing QLI, significantly improving the cycling stability and capacity retention of the symmetric and full cells modified with QLI (Zn@QLI), respectively. Constructing an interphase with a quasi-liquid state represents a promising strategy to stabilize the metal anodes in aqueous electrolytes and even extend to organic electrolytes.

Published in Batteries

ISSN: 2313-0105 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Production of electric energy or power. Powerplants. Central stations; Technology: Chemical technology: Industrial electrochemistry
Website: http://www.mdpi.com/journal/batteries

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