Hybrid supercapacitors have been studied as a next generation energy storage device that combines the advantages of supercapacitors and batteries. One important challenge of hybrid supercapacitors is to improve energy density (8.9–42 Wh/kg) with maintaining excellent power density (800–7989 W/kg) and cyclability (98.9% after 9000 cycles). Herein, we demonstrate an approach to design hybrid supercapacitors based on LiNi_1/3Mn_1/3Co_1/3O₂ (NMC)/activated carbon (AC) cathode and AC anode (NMC/AC//AC). The NMC/AC//AC hybrid supercapacitors shows outstanding electrochemical performances due to the enhanced energy and power densities. These findings suggest that the NMC/AC cathode is an effective method for high performance hybrid supercapacitors.

已经研究了混合超级电容器作为结合了超级电容器和电池的优点的下一代能量存储设备。混合超级电容器的一个重要挑战是如何在保持出色的功率密度（800-7989 W / kg）和循环性（9000次循环后为98.9％）的情况下提高能量密度（8.9–42 Wh / kg）。本文中，我们演示了一种基于LiNi _1/3 Mn _1/3 Co _1/3 O _2的混合超级电容器的设计方法。（NMC）/活性炭（AC）阴极和AC阳极（NMC / AC // AC）。NMC / AC // AC混合超级电容器由于增强的能量和功率密度而具有出色的电化学性能。这些发现表明，NMC / AC阴极是用于高性能混合超级电容器的有效方法。