非对称超级电容器电极材料的研究进展

Research progress in asymmetric supercapacitors

超级电容器以其高功率、长周期使用寿命、快速充放电和环保等特点已成为最有前途的储能系统之一.然而,传统超级电容器固有的低能量密度严重限制了它们的广泛应用,使用两种不同的电极材料组装的非对称超级电容器具有工作电压窗宽的明显优点,从而显著提高了能量密度.综述了近年来在非对称超级电容器领域取得的进展,重点是对其电极材料的广泛研究,以及讨论了当前的挑战和未来的展望.

Supercapacitors have become one of the most promising energy storage systems due to their high power, long cycle life, fast charge and discharge and environmental protection. However, the inherent low energy density of conventional supercapacitors severely limits their applications, while asymmetric supercapacitors assembled with two different electrode materials have the distinct advantage of operating voltage window widths, thereby significantly increasing energy density. This paper reviews recent advances in the field of asymmetric supercapacitors, focusing on extensive researches on their electrode materials and discussing current challenges and future prospects.