炭-/石墨烯量子点作为新兴的炭纳米材料，因具有独特的小尺寸效应和丰富的边缘活性位点而在高性能超级电容器电极材料的研发方面展现出巨大潜力。针对目前炭-/石墨烯量子点在超级电容器电极材料方面的应用优势和存在的关键问题，本文以炭-/石墨烯量子点、量子点/导电炭复合材料、量子点/金属氧化物复合材料、量子点/导电聚合物复合材料以及量子点衍生炭这些电极材料为脉络，梳理了近年来该领域的发展状况，尝试阐释炭-/石墨烯量子点在电极材料、复合材料和衍生炭电极材料中所起到的关键作用，最后对炭-/石墨烯量子点电极材料的发展进行了展望。本综述以期为炭-/石墨烯量子点基电极材料的研究提供一定参考和依据。
Supercapacitors have attracted considerable attention as new-generation energy storage devices because of their high charge-discharge rate, ultralong lifetime, and high power density. However, the performance of supercapacitors is severely restricted by either the low intrinsic capacitance of porous carbons or the poor conductivity and sluggish electrochemical kinetics of pseudocapacitive components. Therefore, high-performance electrode materials integrated with high gravimetric and volumetric capacitances, high rate capability, and superb cycling stability are urgently needed. As emerging carbon nanomaterials, carbon-/graphene quantum dots (CDs/GQDs) have uniquely small particle sizes, abundant edge sites, and various functional groups, thus endowing them with great potential for developing high-performance electrode materials for supercapacitors. With the purpose of identifying the application advantages and critical problems of CDs/GQDs for supercapacitor electrodes, this review summarizes the development of CDs/GQDs, quantum dots (QDs)/conductive carbon, QDs/metal oxides, QDs/conductive polymer composites, and QD-derived carbon materials in recent years. In each section of this paper, we introduce the typical and updated studies from corresponding fields in terms of novel preparation routes, the crucial roles of CDs/GQDs in composite materials, and the electrochemical performance of electrode materials and assembled devices. Finally, the advantages and limitations of CD/GQD electrode materials are described, and the future development of QD-based materials is discussed. In general, the previous studies have shown that when directly used as electrode materials for micro-supercapacitors, CDs/GQDs performed at an ultrahigh charge-discharge rate of up to 1000 V？s？1. However, because of the discontinuous conductive network and good dispersibility in electrolytes, they are not suitable for use in common devices because of poor cycle stability. One of the most promising means for fully realizing active ion storage sites for portable devices is to strongly anchor CDs/GQDs onto conductive carbon scaffolds such as activated carbon, graphene nanosheets, and carbon nanofibers. QDs simultaneously improve the capacitive and rate performance owing to the active sites and