Tang Mingcong, Liu Qun, Zou Xiaohong, Zhang Biao, An Liang
Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, 999077, China.
Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, 999077, China.
Adv Mater. 2025 Apr 25:e2501361. doi: 10.1002/adma.202501361.
Aqueous zinc-ion batteries (AZIBs) are emerging as a promising energy storage technique supplementary to Li-ion batteries, attracting much research attention owing to their intrinsic safety, cost economy, and environmental friendliness. However, energy densities for AZIBs still do not fulfill practical requirements because of the low specific and areal capacity, limited working potential, and excessive negative-to-positive electrode capacity (N/P) ratio. In this review, a comprehensive overview of basic requirements and major challenges for achieving high-energy-density AZIBs is provided. Following that, recent progress in the optimization of each component and the overall configuration is summarized, and crucial design principles are discussed. Apart from conventional emphasis on each part, especially cathode materials, separately, the comprehensive discussion about the synergistic interactions among all components is conducted. Finally, the outlook and research direction are given to provide valuable guidance for the further holistic development of high-energy-density aqueous zinc-ion batteries.
水系锌离子电池（AZIBs）正作为一种补充锂离子电池的、有前景的储能技术而兴起，因其本质安全性、成本经济性和环境友好性而备受研究关注。然而，由于比容量和面积容量低、工作电位有限以及负正极容量（N/P）比过高，AZIBs的能量密度仍无法满足实际需求。在本综述中，提供了对实现高能量密度AZIBs的基本要求和主要挑战的全面概述。在此之后，总结了各组件和整体配置优化方面的最新进展，并讨论了关键设计原则。除了分别对每个部分，特别是阴极材料的传统强调外，还对所有组件之间的协同相互作用进行了全面讨论。最后，给出了展望和研究方向，为高能量密度水系锌离子电池的进一步整体发展提供有价值的指导。
