A Zn(ClO<sub>4</sub>)<sub>2</sub> Electrolyte Enabling Long-Life Zinc Metal Electrodes for Rechargeable Aqueous Zinc Batteries

Wang, Lijun; Zhang, Yue; Hu, Honglu; Shi, Hua‐Yu; Song, Yu; Guo, Di; Liu, Xiaoxia; Sun, Xiaoqi

doi:10.1021/acsami.9b10905

Cited by 123 publications

(89 citation statements)

References 44 publications

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“…Regarded as a potential alternative to Li-based battery anode materials, the Zn metal anode offers a high volumetric capacity (5854 mAh cm À3 ), [1] relative abundance and widespread distribution in the earth's crust, [2,3] and a low plating/stripping potential that can be accommodated in aqueous electrolytes. [4][5][6][7] However, poor cycling efficiency and dendrite formation stemming from parasitic reactions between the Zn metal and the electrolyte currently impede the practical deployment of a rechargeable Zn metal battery (RZMB). [8,9] This impediment has spurred significant research effort toward electrolyte development for RZMBs.…”

Section: Introductionmentioning

confidence: 99%

Critical Factors Dictating Reversibility of the Zinc Metal Anode

Schroeder

Pollard

et al. 2020

Energy & Environ Materials

140

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With high energy density and improved safety, rechargeable battery chemistries with a zinc (Zn) metal anode offer promising and sustainable alternatives to those based on lithium metal or lithium‐ion intercalation/alloying anode materials; however, the poor electrochemical reversibility of Zn plating/stripping, induced by parasitic reactions with both aqueous and non‐aqueous electrolytes, presently limits the practical appeal of these systems. Although recent efforts in rechargeable Zn metal batteries (RZMBs) have achieved certain advancements in Zn metal reversibility, as quantified by the Coulombic efficiency (CE), a standard protocol for CE has not been established, and results across chemistries and systems are often conflicting. More importantly, there is still an insufficient understanding regarding the critical factors dictating Zn reversibility. In this work, a rigorous, established protocol for determining CE of lithium metal anodes is transplanted to the Zn chemistry and is used for systematically examining how a series of factors including current collector chemistry, current density, temperature, and the upper voltage limit during stripping affect the measured reversibility of different Zn electrolytes. With support from density functional theory calculations, this standardized Zn CE protocol is then leveraged to identify an important correlation between electrolyte solvation strength toward Zn2+ and the measured Zn CE in the corresponding electrolyte, providing new guidance for future development and evaluation of Zn electrolytes.

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Section: Introductionmentioning

confidence: 99%

Critical Factors Dictating Reversibility of the Zinc Metal Anode

Schroeder

Pollard

et al. 2020

Energy & Environ Materials

140

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“…The electrolyte containing an anion with variable valence can form a protective layer via reduction during repeated cycling process, like the solid electrolyte interface in lithium metal batteries. Wang et al 99 found that electrolytes with ClO 4 − could considerably enlarge the cycle life of Zn anodes. By detecting the existence of characteristic peak of Cl − , the XPS result of a Zn anode after cycling suggested that an insoluble chloride layer was formed on the surface of Zn because of the reduction of ClO 4 − .…”

Section: Corrosion and Hermentioning

confidence: 99%

Issues and solutions toward zinc anode in aqueous zinc‐ion batteries: A mini review

et al. 2020

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Aqueous zinc-ion batteries (ZIBs) have been intensively investigated as potential energy storage devices on account of their low cost, environmental benignity, and intrinsically safe merits. With the exploitation of highperformance cathode materials, electrolyte systems, and in-depth mechanism investigation, the electrochemical performances of ZIBs have been greatly enhanced. However, there are still some challenges that need to be overcome before its commercialization. Among them, the obstinate dendrites, corrosion, and hydrogen evolution reaction (HER) on Zn anodes are critical issues that severely limit the practical applications of ZIBs. To address these issues, various strategies have been proposed, and tremendous progress has been achieved in the past few years. In this article, we analyze the origins and effects of the dendrites, corrosion, and HER on Zn anodes in neutral and mildly acid aqueous solutions at first. And then, a scientific understanding of the fundamental design principles and strategies to suppress these problems are emphasized. Apart from these, this article also puts forward some requirements for the practical applications of Zn anodes as well as several cost-effectivemodifying strategies. Finally, perspectives on the future development of Zn anodes in aqueous solutions are also briefly anticipated. This article provides pertinent insights into the challenges on anodes for the development of highperformance ZIBs, which will greatly contribute to their practical applications. K E Y W O R D S corrosion, hydrogen evolution reaction, Zn anode, Zn dendrites 1 | INTRODUCTION As a result of the ongoing crisis in the depletion of conventional fossil fuels, renewable clean energy sources, such as solar energy, wind energy, hydropower, geothermal, and nuclear energy, are rapidly developing. 1,2 Nevertheless, it remains an extreme challenge to efficiently store the energy generated by those renewable

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“…[65,271] Although the perchlorate electrolyte is traditionally not considered as an ideal electrolyte, [10] a recent study demonstrates significant improvement in the cycling stability of ZIB when Zn(ClO 4 ) 2 was used instead of other common electrolyte such as ZnSO 4 . [264] Further studies are required to understand the use of perchlorate electrolyte in the fabrication of ZIB for practical applications. Various engineering strategies employed to achieve high capacity and long lifespan by tuning the electrolyte concentration/composition is illustrated in Scheme 6.…”

Section: Electrolyte Engineering Strategiesmentioning

confidence: 99%

Aqueous Rechargeable Zn‐ion Batteries: Strategies for Improving the Energy Storage Performance

Mallick

Raj

2021

ChemSusChem

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The growing demand for the renewable energy storage technologies stimulated the quest for efficient energy storage devices. In recent years, the rechargeable aqueous zinc-based battery technologies are emerging as a compelling alternative to the lithium-based batteries owing to safety, eco-friendliness, and cost-effectiveness. Among the zinc-based energy devices, rechargeable zinc-ion batteries (ZIBs) are drawing considerable attention. However, they are plagued with several issues, including cathode dissolution, dendrite formation, etc.. Despite several efforts in the recent past, ZIBs are still in their infant stages and have yet to reach the stage of large-scale production. Finding stable Zn 2 + intercalation cathode material with high operating voltage and long cycling stability as well as dendrite-free Zn anode is the main challenge in the develop-ment of efficient zinc-ion storage devices. This Review discusses the various strategies, in terms of the engineering of cathode, anode and electrolyte, adopted for improving the charge storage performance of ZIBs and highlights the recent ZIB technological innovations. A brief account on the history of zinc-based devices and various cathode materials tested for ZIB fabrication in the last five years are also included. The main focus of this Review is to provide a detailed account on the rational engineering of the electrodes, electrolytes, and separators for improving the charge storage performance with a future perspective to achieving high energy density and long cycling stability and large-scale production for practical application.

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A Zn(ClO₄)₂ Electrolyte Enabling Long-Life Zinc Metal Electrodes for Rechargeable Aqueous Zinc Batteries

Cited by 123 publications

References 44 publications

Critical Factors Dictating Reversibility of the Zinc Metal Anode

Critical Factors Dictating Reversibility of the Zinc Metal Anode

Issues and solutions toward zinc anode in aqueous zinc‐ion batteries: A mini review

Aqueous Rechargeable Zn‐ion Batteries: Strategies for Improving the Energy Storage Performance

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A Zn(ClO4)2 Electrolyte Enabling Long-Life Zinc Metal Electrodes for Rechargeable Aqueous Zinc Batteries

Cited by 123 publications

References 44 publications

Critical Factors Dictating Reversibility of the Zinc Metal Anode

Critical Factors Dictating Reversibility of the Zinc Metal Anode

Issues and solutions toward zinc anode in aqueous zinc‐ion batteries: A mini review

Aqueous Rechargeable Zn‐ion Batteries: Strategies for Improving the Energy Storage Performance

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A Zn(ClO₄)₂ Electrolyte Enabling Long-Life Zinc Metal Electrodes for Rechargeable Aqueous Zinc Batteries