1673-159X

CN 51-1686/N

电解液添加剂稳定水系锌离子电池锌负极的研究进展

Research Progress of Electrolyte Additives to Stabilize Zinc Negative Electrode in Aqueous Zinc-ion Batteries

  • 摘要: 水系锌离子电池具有安全性高、成本低等优点,是最具发展前景的新一代电化学储能电池之一。电解液作为连接正极和负极的桥梁,提供了电化学反应发生的适宜环境。由于水系锌离子电池的电解液属于水系电解液体系,锌负极面临锌枝晶、析氢反应(HER)、腐蚀等危害。在电解液体系中加入电解液添加剂可以有效地解决或改善锌负极存在的问题,且可操作性强。本文概述了水系锌离子电池锌负极面临的主要问题,重点阐述不同电解液添加剂对锌负极的锌枝晶、析氢反应、腐蚀问题的改善机制,并指出研发多重功能的电解液添加剂是未来实现锌负极保护的重点。

     

    Abstract: Aqueous zinc-ion batteries are one of the most promising electrochemical energy storage devices for the future. They have many advantages such as being safe and cost-effective. The electrolyte acts as a bridge between the positive and negative electrodes, allowing electrochemical reactions to take place. However, the negative zinc electrode in these batteries faces several challenges due to the aqueous nature of the electrolyte. These challenges include the formation of zinc dendrites, hydrogen evolution reaction (HER), and corrosion. To address these issues, researchers have found that electrolyte additives can be incorporated into the system to enhance its operability. This paper summarizes the main problems faced by Zinc negative electrode in aqueous zinc-ion batteries, with a focus on elaborating the improvement mechanisms of electrolyte additives for zinc dendrites, hydrogen evolution reactions, and corrosion at the negative electrode. It is pointed out that the development of electrolyte additives with multiple functions is the key to achieving zinc anode protection in the future

     

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