基于金属氧化物的赝电容器

A Review on the Metal-oxide-based Pseudocapacitors

电极是电化学超级电容器的重要组成部分,电极材料是决定超级电容器性能的最重要因素。金属氧化物电极材料兼有双电层电容和准电容性质,其比电容远远大于活性炭材料表面的双电层电容,基于金属氧化物电极材料的超级电容器具有使用寿命长、维护简单等优点,是一种新型、高效、实用的能量存储装置,引起研究者的广泛兴趣。本文综述了基于金属氧化物电极材料的赝电容器的储能原理、类型和性能的研究现状,并展望了其发展前景。

The electrode is the key part of the electrochemical supercapacitor （ES） and its materials for determining the properties of ES are very important. Metal oxide electrodes not only have double-layer capacitance but also possess pseudocapacitance. Together with the much larger specific capacitance, long service life, and facile maintenance, they have recently attracted extensive attention of researchers for their potential applications in novel, efficient, and practical energy storage devices. In this paper, the storage mechanism, preparation, and electrochemical performance of ES based on metal oxide are summarized. And their future research directions and development perspective are outlooked.