▎ 摘　　要

The rapid development of miniaturized electronic devices requires state-of-the-art small-form-factor energy storage units for power supply. Micro-supercapacitors (MSCs), as microscale supercapacitors, have great potential to replace microbatteries or electrolytic capacitors due to their high power density and long cycling stability. The planar design of inter-digital microelectrodes not only shortens the ionic diffusion distance but also enables the direct integration of the device on-chip or on a flexible substrate for various applications. Graphene, with a unique 2-D nanostructure, has been extensively studied as a supercapacitor material with superior charge storage capability. Recently, the progress in thin-film fabrication technologies has facilitated the development of graphene-based MSCs, which results in device miniaturization and improved areal capacitance. This paper reviews the recent advances on the design of graphene-based MSCs and discusses the technical trend regarding large-scale fabrication and stretchable/wearable energy storage devices.