Supercapacitors have become an important energy storage device. Based on their energy storage mechanism, supercapacitors are generally categorized into pseudocapacitors and electric double-layer capacitors (EDLCs). Nowadays, carbon materials are used as the electrodes in commercial EDLCs. Hollow carbon spheres (HCSs) have attracted extensive attention for use as the electrode materials of EDLCs because of their large specific surface area, high electrical conductivity, excellent electrochemical stability and high mechanical strength. Progress on the preparation of HCSs is reviewed, including the hard and soft templating methods, template-free methods and the modified Stöber method. Their electrochemical performance as the electrode materials of EDLCs and the effect of their specific surface area, pore size and doped foreign atoms on their electrochemical performance are summarized, which gives insight into their low-cost preparation and high-performance for use in supercapacitors.

超级电容器已成为重要的储能装置。根据其储能机制，超级电容器通常分为赝电容器和双电层电容器（EDLC）。如今，碳材料被用作商业 EDLC 的电极。空心碳球（HCSs）由于其比表面积大、电导率高、电化学稳定性好和机械强度高而被广泛用作EDLCs的电极材料。综述了 HCS 的制备进展，包括硬模板和软模板方法、无模板方法和改进的 Stöber 方法。它们作为 EDLCs 电极材料的电化学性能及其比表面积的影响，