锌离子电容器用碳基正极材料的研究进展

A review of carbon-based cathode materials for zinc-ion capacitors

锌离子电容器凭借锌资源储量丰富、理论容量高等特点,在获得安全可靠、性能优异的混合型电容器方面展现出极具竞争力的优势,已逐渐成为新能源储能领域的研究热点。碳基材料因其原料来源广泛、制备过程简单、表面易修饰等特点,常被用作锌离子电容器的正极材料。本文总结了碳基电极材料在柔性/非柔性锌离子电容器应用中的最新研究进展,阐述了碳基材料结构与表面性质对其性能的影响,同时对碳基材料正极的储能机理进行了讨论。最后,梳理了目前碳基正极材料的研究热点和未来发展方向。

Zinc-ion capacitors are high-performance hybrid capacitors that have great advantages because of the abundance of zinc resources and their high theoretical capacitance.As a result they have become a hot research topic in the field of energy storage devices.Carbon-based materials are usually used as the cathode materials for these capacitors because of the wide range of available materials,and their easily tuned surface properties and simple fabrication.This review summarizes recent research progress on carbon cathode materials for flexible/non-flexible zinc ion capacitors,and gives a concise description of their novel structures and outstanding performance.It then discusses research on the energy storage mechanisms in the cathode materials and suggests directions for the development of carbon cathodes for zinc-ion capacitors.