Lee Gijung, Heo Jin Jun, Kang Jieun, Yi Jin Woo, Ryu Jaegeon
Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Republic of Korea.
Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.
Chem Commun (Camb). 2025 Jul 10;61(57):10432-10448. doi: 10.1039/d5cc01312g.
The demand for sustainable and fast-charging energy storage systems has grown significantly, yet traditional lithium-ion batteries (LIBs) face challenges related to costly resources and sluggish charge transport kinetics. As a promising alternative, dual-ion batteries (DIBs), also known as anion-shuttle batteries, have gained attention for their high operational voltage and ultrafast charging capabilities. Unlike conventional rocking-chair batteries, DIBs utilize both cations and anions as charge carriers, reducing rate-limiting steps and eliminating long-range ion migration. This review provides a comprehensive analysis of the critical factors influencing DIB performance, with a particular focus on anion solvation structures, diffusion kinetics, electrolyte stability, and interfacial charge transfer mechanisms. We also explore how interface engineering enhances charge transfer efficiency and extends battery lifespan. In particular, we examine the role of cathode electrolyte interphase (CEI) and solvation dynamics in stabilizing the electrode-electrolyte interface. By providing a comprehensive understanding of chemistry and dynamics in DIBs, this review outlines future research directions for advancing sustainable DIBs technology.
对可持续且快速充电的储能系统的需求显著增长，然而传统锂离子电池（LIBs）面临与资源成本高和电荷传输动力学缓慢相关的挑战。作为一种有前景的替代方案，双离子电池（DIBs），也称为阴离子穿梭电池，因其高工作电压和超快充电能力而受到关注。与传统的摇椅式电池不同，DIBs利用阳离子和阴离子作为电荷载体，减少了限速步骤并消除了长程离子迁移。本综述对影响DIB性能的关键因素进行了全面分析，特别关注阴离子溶剂化结构、扩散动力学、电解质稳定性和界面电荷转移机制。我们还探讨了界面工程如何提高电荷转移效率并延长电池寿命。特别是，我们研究了阴极电解质界面（CEI）和溶剂化动力学在稳定电极-电解质界面中的作用。通过全面了解DIBs中的化学和动力学，本综述概述了推进可持续DIBs技术的未来研究方向。
