An Electroanalytical Perspective on the Competitive Interplay between Zinc Deposition and Hydrogen Evolution in Aqueous Zinc Metal Batteries

IF 26 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Advanced Energy Materials Pub Date : 2025-10-10 DOI:10.1002/aenm.202503630

Ashutosh Rana, Md. Arif Faisal, James H. Nguyen, Saptarshi Paul, John F. Koons, Jeremy H. Lawrence, Kingshuk Roy, Jeffrey E. Dick

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Abstract

This perspective highlights the consequences of the intricate interplay between the hydrogen evolution reaction (HER) and zinc electrodeposition on anode stability in aqueous zinc metal batteries (AZMBs), considering both cycling and resting conditions. Recent advances in the precise quantification of HER kinetics and its mechanistic origin are discussed, alongside accurately probing the kinetics of zinc plating using fast-scan voltammetry. From an electroanalytical standpoint, we emphasize on how measurement science has informed electrolyte and additive design, SEI engineering, charge–discharge protocols, and interfacial pH effects. The findings discussed help rationalize observed phenomena, such as paradoxically high Coulombic efficiencies at high current densities. Importantly, challenges during resting states are highlighted, where spontaneous HER and corrosion lead to active loss of zinc inventory (12–37%). Taken together, this work underscores the need for standardized kinetic evaluation and comprehensive stability metrics to guide the rational design of next-generation AZMB anodes.

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锌金属水电池中锌沉积与析氢竞争相互作用的电分析研究

这一观点强调了析氢反应（HER）和锌电沉积之间复杂的相互作用对水锌金属电池（azmb）阳极稳定性的影响，同时考虑了循环和静息条件。讨论了HER动力学的精确量化及其机理起源的最新进展，以及使用快速扫描伏安法精确探测镀锌动力学。从电分析的角度来看，我们强调测量科学如何为电解质和添加剂设计、SEI工程、充放电协议和界面pH效应提供信息。讨论的发现有助于使观察到的现象合理化，例如在高电流密度下矛盾的高库仑效率。重要的是，静息状态下的挑战是突出的，在静息状态下，自发的HER和腐蚀导致锌库存的主动损失（12-37%）。综上所述，这项工作强调了标准化动力学评估和综合稳定性指标的必要性，以指导下一代AZMB阳极的合理设计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Energy Materials CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

41.90

自引率

4.00%

发文量

889

审稿时长

1.4 months

期刊介绍： Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small. With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics. The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.