Towards unlocking high-performance of supercapacitors: From layered transition-metal hydroxide electrode to redox electrolyte.  

作　　者：WANG HaoXiang ZHANG Wei CHEN Hong ZHENG WeiTao 

机构地区：[1]Department of Materials Science, Key Laboratory of Mobile Materials MOE, and State Key Laboratory of Superhard Materials,Jilin University [2]Department of Control Science and Engineering, Jilin University

出　　处：《Science China(Technological Sciences)》2015年第11期1779-1798,共20页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.51372095);the Special Funding for Academic Leaders at Jilin University(Grant No.419080500273)

摘　　要：Both energy density and power density are crucial for a supereapacitor device, where the trade-off must be made between the two factors towards a practical application. Herein we focus on pseudocapacitance produced from the electrode and the electrolyte of supercapacitors to simultaneously achieve high energy density and power density. On the one hand, layered transition metal hydroxides （Ni（OH）2 and Co（OH）,,） are introduced as electrodes, followed with exploration of the effect of the active materials and the substrate on the electrochemical behavior. On the other hand, various redox electrolytes are utilized to improve the specific capacitance of an electrolyte. The roadmap is to select an appropriate electrode and a dedicated electrolyte in order to achieve high electrochemical performance of the supercapacitors.

关 键 词：Ni（OH）2 Co（OH）2 redox electrolyte PSEUDOCAPACITANCE SUPERCAPACITOR 

分 类 号：TM53[电气工程—电器] O646.5[理学—物理化学]