物理化学学报2017，Vol.33Issue(2)：305-313,9.DOI:10.3866/PKU.WHXB201611012
高容量超级电容器电极材料的设计与制备
Design and Preparation of Electrode Materials for Supercapacitors with High Specific Capacitance
摘要
Abstract
Supercapacitors (SCs) have been explored as one of the electrical sources because of their fast charge and discharge rates,good safety,and long cycle life.However,the limited energy densities of SCs hinder their further application.Thus,current research on SCs focuses on increasing their energy density.Enhancing specific capacitance is an effective way to increase energy density.In this review,we describe several approaches to achieve superior electrochemical properties by optimizing electrode materials and electrolytes.Considering electrode materials,their electrochemical performance is related to their specific surface area,pore structure,and electroconductivity.On one hand,the optimization of specific surface area and pore structure can increase their content of exposed active sites as well as electrolyte ion conductivity,which is beneficial for improved specific capacitance.On the other hand,enhanced electroconductivity leads to higher specific capacitance.The specific capacitances of electric double-layer capacitors and pseudocapacitors have been increased by optimizing carbon-based materials and metal hydroxides/oxides,respectively.Moreover,specific capacitance can be further enhanced by adding a redox mediator to the electrolyte as a pseudocapacitive source.This review offers perspectives to aid the development of next-generation supercapacitors with high specific capacitance.关键词
超级电容器/比容量/电极材料/电解液/双电层电容/赝电容Key words
Supercapacitor/Specific capacitance/Electrode material/Electrolyte/ELectrical double-layer capacitor/Pseudocapacitor分类
化学化工引用本文复制引用
吴中,张新波..高容量超级电容器电极材料的设计与制备[J].物理化学学报,2017,33(2):305-313,9.基金项目
The project was supported by the National Natural Science Foundation of China (21422108,21271168,51472232).国家自然科学基金(21422108,21271168,51472232)资助项目 （21422108,21271168,51472232）
