金属氧化物超大容量电容器电极材料的研究进展

Progress of Research on Electrode Materials for Metal-Oxide Ultracapacitors

超大容量电容器是一种介于传统电容器和电池之间的新型储能元件,它比传统电容器具有更高的比电容和能量密度.比电池具有更高的功率密度,因而具有广阔的应用前景。简要介绍了超大容量电容器的储能机理、特点,综述了金属氧化物超大容量电容器电极材料的发展状况,以及改善氧化钌基电容器的方法和廉价材料(如氧化镍、氧化钴、氧化锰、氯化钼等)替代氧化钌电极的研究进展情况,展望了其发展趋势。

Ultracapacitors as novel energy storage devices between conventional capacitors and batteries,with more specific capacitance and energy densities than conventional capacitors,and more power densities than bat-teries,are to be used in many fields.The purpose of this paper is to survey the fundamental principles,characteristics,and review recent advances of electrode materials and the way of improving the RuO_2 ultracapacitor and progress ofusing cheap materials(NiO_x,CoO_x,MnO_2,Mo_2N)as substitute for RuO_2.Meanwhile,the development trend is predict-ed.