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超级电容器具有功率密度大、循环寿命长等优点,但同时面临着能量密度低等缺点.胶体离子超级电容器是最近开发的一种新型赝电容器,同时具有高功率密度和高能量密度的特点.胶体离子超级电容器能够充分利用多价态金属阳离子的多电子氧化还原反应,完全释放储存的潜在电能,从而提高超级电容器的能量密度.由于胶体离子的存在,缩短了电子、离子的扩散长度,加快了氧化还原反应动力学,从而保持高的功率密度.本文主要介绍胶体离子超级电容器的发展过程、最新研究进展以及需要进一步开展的研究工作,作者希望从一个新的角度去研究发展下一代高性能电化学储能设备,实现新的突破.
Supercapacitors have the advantages of large power density and long cycle life, but at the same time, they face the disadvantages of low energy density, etc. Colloidal ion supercapacitors have recently developed a new type of pseudocapacitor with high power density and high energy density. Ion supercapacitors can fully utilize the multi-electron redox reaction of multivalent metal cations to completely release the potential energy stored, thereby increasing the energy density of the supercapacitor. Due to the existence of colloidal ions, the diffusion length of electrons and ions is shortened, Redox reaction kinetics to maintain high power density.This paper mainly introduces the development of colloidal ion supercapacitors, the latest research progress and the need for further research work, the author hopes to study from a new perspective to develop the next generation of high performance electricity Chemical storage equipment, to achieve a new breakthrough.