中文摘要：

石墨烯具有优异的物理、化学和力学性能，成为近年来的研究热点。尤其是其良好的导电性能和大的比表面积，使其在电化学领域中有着巨大的应用前景。综述了石墨烯的主要制备方法，重点介绍了石墨烯及其复合材料在超级电容器中的主要制备方法和应用研究，并对其未来的应用前景进行了展望。

英文摘要：

Graphene posseses superior physics, chemistry and mechanics performance and it becomes a research hotspot in recent years. Especially, its good conductivity and large specific surface area makes it have great application prospects in the field of electrochemistry. The main preparation methods of graphene are reviewed, the research in application of graphene and its composites in supercapacitors as well as its mainstream preparation methods are highlighted, and its future prospect is looked into.