Electrolyte additive as an innovative energy storage technology has been widely applied in battery field. It is significant that electrolyte additive can address many of critical issues such as electrolyte decomposition, anode dendrites, and cathode dissolution for the low-cost and high-safety aqueous zinc-ion batteries. However, there is a lack of systematic discussion on the features and functional mechanisms of electrolyte additives, which highlights the importance of a timely review with the academic perspective in this aspect. In this review, a comprehensive introduction of commonly used zinc-ion electrolyte additives is covered. Particularly, an in-depth and fundamental understanding on the disciplines and effects of electrolyte additives on electrolyte aspect, anode side, and cathode side has been expounded and evaluated. Due to the lack of systematic research in various electrolyte, anode and cathode issues, we have also highlighted the issues and pointed out the promising strategies for each aspect. The final section presents the potential directions and perspectives for further improvements and guidance of electrolytes and additives in aqueous zinc-ion batteries.

电解质添加剂作为一种创新的储能技术已广泛应用于电池领域。重要的是，电解质添加剂可以解决许多关键问题，例如低成本和高安全性的水性锌离子电池的电解质分解，阳极枝晶和阴极溶解。然而，关于电解质添加剂的特征和功能机理缺乏系统的讨论，这突出了在这方面以学术观点进行及时审查的重要性。在这篇综述中，涵盖了常用锌离子电解质添加剂的全面介绍。特别地，已经阐述并评估了关于电解质添加剂在电解质方面，阳极侧和阴极侧的原理和效果的深入和基本的理解。由于缺乏对各种电解质，阳极和阴极问题的系统研究，因此我们也着重指出了这些问题，并指出了各个方面的有前途的策略。最后一节介绍了进一步改进和指导水性锌离子电池中电解质和添加剂的潜在方向和前景。