Wang Xingxing, Feng Wenfang, Zhou Zhibin, Zhang Heng
Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education) School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology 1037 Luoyu Road, Wuhan 430074, China.
Chem Commun (Camb). 2024 Oct 8;60(81):11434-11449. doi: 10.1039/d4cc03759f.
Sulfonimide salts are considered as promising electrolyte materials in the construction of high-performant rechargeable lithium-ion batteries (LIBs) and lithium metal batteries (LMBs), owing to their delocalized negative charges, superior structural flexibility, and decent thermal/chemical stability. In this work, a historical overview of the development of sulfonimide anions in the field of electrolyte materials is presented, and the unique features of sulfonimide anions are discussed, in comparison with some popular anions [, hexafluorophosphate anion (PF)] being employed for batteries. The key advances in the design of sulfonimide salts as electrolyte materials are scrutinized, encompassing their use in nonaqueous liquid electrolytes, ionic liquid electrolytes, and solid polymer electrolytes. Based on the existing reports and our experiences in this domain, possible research directions related to further improvement of sulfonimide-based electrolytes are highlighted. Besides demonstrating the and research progress, this work also expands the structural design toolkit of sulfonimide-based electrolytes, which may accelerate the development and realization of sulfonimide anion-based electrolytes in practical LIBs/LMBs and simultaneously give new impetus to other kinds of rechargeable battery technologies (, sodium and potassium batteries).
由于其离域负电荷、优异的结构灵活性以及良好的热/化学稳定性，磺酰亚胺盐被认为是构建高性能可充电锂离子电池（LIBs）和锂金属电池（LMBs）的有前景的电解质材料。在这项工作中，我们对电解质材料领域中磺酰亚胺阴离子的发展进行了历史回顾，并与一些用于电池的常见阴离子（如六氟磷酸根阴离子（PF））进行比较，讨论了磺酰亚胺阴离子的独特特性。详细审查了磺酰亚胺盐作为电解质材料设计方面的关键进展，包括它们在非水液体电解质、离子液体电解质和固体聚合物电解质中的应用。基于现有报告和我们在该领域的经验，突出了与进一步改进基于磺酰亚胺的电解质相关的可能研究方向。除了展示进展和研究成果外，这项工作还扩展了基于磺酰亚胺的电解质的结构设计工具包，这可能会加速基于磺酰亚胺阴离子的电解质在实际LIBs/LMBs中的开发和实现，并同时为其他类型的可充电电池技术（如钠电池和钾电池）提供新的动力。
