Trade-Off between Rough and Smooth Electrode Surfaces toward Stable Zn Stripping/Plating in Aqueous Electrolytes

Jin Zhang; Jie Sun; Di Yang; Shixian Ha; Teng Ma; Han Liu; Xuejian Shi; Dongxu Guo; Yizhan Wang; Yingjin Wei

doi:10.1021/acs.nanolett.3c03983

Trade-Off between Rough and Smooth Electrode Surfaces toward Stable Zn Stripping/Plating in Aqueous Electrolytes

Jin Zhang, Jie Sun, Di Yang, Shixian Ha, Teng Ma, Han Liu, Xuejian Shi, Dongxu Guo, Yizhan Wang, Yingjin Wei

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The effects of surface roughness on the performance of the Zn metal anode in aqueous electrolytes are investigated by experiments and computational simulations. Smooth surfaces can homogenize the nucleation and growth of Zn, which helps to form a flat Zn anode under high current density. In spite of these advantages, the whole surface of the smooth electrode serves as the reactive contact area for parasitic reactions, generating severe hydrogen evolution, corrosion, and byproduct formation, which seriously hinder the long-term cycle stability of the Zn anode. To trade off this double-sided effect, we identify a medium degree of surface roughness that could stabilize the Zn anode for 1000 h cycling at 1.0 mAh cm^-2. The electrode also enabled stable cycling for 800 h at a high current density of 5.0 mAh cm^-2. This naked Zn metal anode with optimized surface roughness holds great promise for direct use in aqueous zinc ion batteries.

Original language	English
Pages (from-to)	688-695
Number of pages	8
Journal	Nano Letters
Volume	24
Issue number	2
DOIs	https://doi.org/10.1021/acs.nanolett.3c03983
State	Published - 17 Jan 2024
Externally published	Yes

Keywords

Zn metal anode
aqueous Zn ion batteries
charge−discharge performance
parasitic reactions
surface roughness

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acs.nanolett.3c03983

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title = "Trade-Off between Rough and Smooth Electrode Surfaces toward Stable Zn Stripping/Plating in Aqueous Electrolytes",

abstract = "The effects of surface roughness on the performance of the Zn metal anode in aqueous electrolytes are investigated by experiments and computational simulations. Smooth surfaces can homogenize the nucleation and growth of Zn, which helps to form a flat Zn anode under high current density. In spite of these advantages, the whole surface of the smooth electrode serves as the reactive contact area for parasitic reactions, generating severe hydrogen evolution, corrosion, and byproduct formation, which seriously hinder the long-term cycle stability of the Zn anode. To trade off this double-sided effect, we identify a medium degree of surface roughness that could stabilize the Zn anode for 1000 h cycling at 1.0 mAh cm-2. The electrode also enabled stable cycling for 800 h at a high current density of 5.0 mAh cm-2. This naked Zn metal anode with optimized surface roughness holds great promise for direct use in aqueous zinc ion batteries.",

keywords = "Zn metal anode, aqueous Zn ion batteries, charge−discharge performance, parasitic reactions, surface roughness",

author = "Jin Zhang and Jie Sun and Di Yang and Shixian Ha and Teng Ma and Han Liu and Xuejian Shi and Dongxu Guo and Yizhan Wang and Yingjin Wei",

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doi = "10.1021/acs.nanolett.3c03983",

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T1 - Trade-Off between Rough and Smooth Electrode Surfaces toward Stable Zn Stripping/Plating in Aqueous Electrolytes

AU - Zhang, Jin

AU - Sun, Jie

AU - Yang, Di

AU - Ha, Shixian

AU - Ma, Teng

AU - Liu, Han

AU - Shi, Xuejian

AU - Guo, Dongxu

AU - Wang, Yizhan

AU - Wei, Yingjin

PY - 2024/1/17

Y1 - 2024/1/17

N2 - The effects of surface roughness on the performance of the Zn metal anode in aqueous electrolytes are investigated by experiments and computational simulations. Smooth surfaces can homogenize the nucleation and growth of Zn, which helps to form a flat Zn anode under high current density. In spite of these advantages, the whole surface of the smooth electrode serves as the reactive contact area for parasitic reactions, generating severe hydrogen evolution, corrosion, and byproduct formation, which seriously hinder the long-term cycle stability of the Zn anode. To trade off this double-sided effect, we identify a medium degree of surface roughness that could stabilize the Zn anode for 1000 h cycling at 1.0 mAh cm-2. The electrode also enabled stable cycling for 800 h at a high current density of 5.0 mAh cm-2. This naked Zn metal anode with optimized surface roughness holds great promise for direct use in aqueous zinc ion batteries.

AB - The effects of surface roughness on the performance of the Zn metal anode in aqueous electrolytes are investigated by experiments and computational simulations. Smooth surfaces can homogenize the nucleation and growth of Zn, which helps to form a flat Zn anode under high current density. In spite of these advantages, the whole surface of the smooth electrode serves as the reactive contact area for parasitic reactions, generating severe hydrogen evolution, corrosion, and byproduct formation, which seriously hinder the long-term cycle stability of the Zn anode. To trade off this double-sided effect, we identify a medium degree of surface roughness that could stabilize the Zn anode for 1000 h cycling at 1.0 mAh cm-2. The electrode also enabled stable cycling for 800 h at a high current density of 5.0 mAh cm-2. This naked Zn metal anode with optimized surface roughness holds great promise for direct use in aqueous zinc ion batteries.

KW - Zn metal anode

KW - aqueous Zn ion batteries

KW - charge−discharge performance

KW - parasitic reactions

KW - surface roughness

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U2 - 10.1021/acs.nanolett.3c03983

DO - 10.1021/acs.nanolett.3c03983

M3 - Article

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AN - SCOPUS:85182006047

SN - 1530-6984

VL - 24

SP - 688

EP - 695

JO - Nano Letters

JF - Nano Letters

IS - 2

ER -

Trade-Off between Rough and Smooth Electrode Surfaces toward Stable Zn Stripping/Plating in Aqueous Electrolytes

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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