Volume 21, Issue 9 2410332
Review

Active Water Optimization in Different Electrolyte Systems for Stable Zinc Anodes

Guoxing Tian

Guoxing Tian

Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004 China

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Ailing Song

Corresponding Author

Ailing Song

Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004 China

E-mail: [email protected]; [email protected]; [email protected]; [email protected]

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Ming Liu

Ming Liu

Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004 China

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Yanan Song

Yanan Song

Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004 China

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Ying Liu

Ying Liu

Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004 China

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Ningning Tian

Ningning Tian

Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004 China

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Yuqian Fan

Yuqian Fan

Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004 China

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Ling Chen

Corresponding Author

Ling Chen

Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004 China

E-mail: [email protected]; [email protected]; [email protected]; [email protected]

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Guangjie Shao

Corresponding Author

Guangjie Shao

Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004 China

State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004 China

E-mail: [email protected]; [email protected]; [email protected]; [email protected]

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Zhipeng Ma

Corresponding Author

Zhipeng Ma

Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004 China

State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004 China

E-mail: [email protected]; [email protected]; [email protected]; [email protected]

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First published: 31 January 2025

Abstract

Zinc (Zn) metal, with abundant resources, intrinsic safety, and environmental benignity, presents an attractive prospect as a novel electrode material. However, many substantial challenges remain in realizing the widespread application of aqueous Zn-ion batteries (AZIBs) technologies. These encompass significant material corrosion challenges (This can lead to battery failure in an unloaded state.), hydrogen evolution reactions, pronounced dendrite growth at the anode interface, and a constrained electrochemical stability window. Consequently, these factors contribute to diminished battery lifespan and energy efficiency while restricting high-voltage performance. Although numerous reviews have addressed the potential of electrode and separator design to mitigate these issues to some extent, the inherent reactivity of water remains the fundamental source of these challenges, underscoring the necessity for precise regulation of active water molecules within the electrolyte. In this review, the failure mechanism of AZIBs (unloaded and in charge and discharge state) is analyzed, and the optimization strategy and working principle of water in the electrolyte are reviewed, aiming to provide insights for effectively controlling the corrosion process and hydrogen evolution reaction, further controlling dendrite formation, and expanding the range of electrochemical stability. Furthermore, it outlines the challenges to promote its practical application and future development pathways.

Conflict of Interest

The authors declare no conflict of interest.

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