Carbon nanodots (CNDs) and graphene/carbon quantum dots (GQDs/CQDs) have emerged as useful components for the fabrication of electrodes in electric double-layer capacitors (EDLCs). In this review, we highlight the emerging trend of employing CNDs and their relatives as active components in EDLCs. We discuss recent progress in converting CNDs with intrinsically low electrical conductivity into conductive electrode materials. Specifically, we highlight advances in improving specific surface area (SSA) and rate capability, as well as employing abundant active sites on CNDs to increase electrode specific capacitance based on conductive carbon, metal compounds, and/or conductive polymers.

碳纳米点（CNDs）和石墨烯/碳量子点（GQDs / CQDs）已经成为在双电层电容器（EDLC）中制造电极的有用组件。在这篇评论中，我们重点介绍了使用CND及其亲属作为EDLC中的活性成分的新兴趋势。我们讨论了将本质上具有低电导率的CND转换为导电电极材料的最新进展。具体而言，我们重点介绍了在改善比表面积（SSA）和速率能力以及在CND上利用丰富的活性位点来增加基于导电碳，金属化合物和/或导电聚合物的电极比电容方面的进展。