Advances in in-situ characterizations of electrode materials for better supercapacitors  

作　　者：Xiaoli Su Jianglin Ye Yanwu Zhu 

机构地区：[1]Hefei National Research Center for Physical Sciences at the Microscale,&Department of Materials Science and Engineering,&CAS Key Laboratory of Materials for Energy Conversion,If i-ChEM,University of Science and Technology of China,Hefei 230026,Anhui,China

出　　处：《Journal of Energy Chemistry》2021年第3期242-253,共12页能源化学（英文版）

基　　金：supported by the National Natural Science Foundation of China(grant Nos.51322204 and 51772282)。

摘　　要：In past decades,the performance of supercapacitors has been greatly improved by rationalizing the electrode materials at the nanoscale.However,there is still a lack of understanding on how the charges are efficiently stored in the electrodes or transported across the electrolyte/electrode interface.As it is very challenging to investigate the ion-involved physical and chemical processes with single experiment or computation,combining advanced analytic techniques with electrochemical measurements,i.e.,developing in-situ characterizations,have shown considerable prospect for the better understanding of behaviors of ions in electrodes for supercapacitors.Herein,we briefly review several typical in-situ techniques and the mechanisms these techniques reveal in charge storage mechanisms specifically in supercapacitors.Possible strategies for designing better electrode materials are also discussed.

关 键 词：Electric double layer capacitor PSEUDOCAPACITOR In-situ technique Charge storage mechanism 

分 类 号：TB34[一般工业技术—材料科学与工程] TM53[电气工程—电器]