Insight into the self-discharge suppression of electrochemical capacitors: Progress and challenges  

作　　者：Wenxu Shang Wentao Yu Xu Xiao Yanyi Ma Yi He Zhongxi Zhao Peng Tan 

机构地区：[1]Department of Thermal Science and Energy Engineering,University of Science and Technology of China(USTC),Hefei,230026,China

出　　处：《Advanced Powder Materials》2023年第1期55-71,共17页先进粉体材料（英文）

基　　金：We thank the funding support from Anhui Provincial Natural Science Foundation(2008085ME155);National Innovative Talents Program(GG2090007001);Chinese Academy of Sciences(CAS)Program(KJ2090130001);USTC Startup Program(KY2090000044);USTC Tang Scholar(KY2090000065).

摘　　要：The ever-growing demands for renewable energy sources motivate the development of energy storage systems.Among them,supercapacitors are received increasing attention due to their high power density,long cycle life,fast recharge rate,and almost no maintenance.Nevertheless,their application is hindered by severe self-discharge behaviors,especially in wearable and energy storage devices.In recent years,tremendous excellent works have been reported to conquer this shortcoming through various creative strategies.Herein,we gives a timely spotlight on breakthroughs in the self-discharge mechanism investigations of supercapacitors and the corresponding suppression strategies.The self-discharge mechanisms of various supercapacitors were introduced first,followed by a summary of the strategies from materials(i.e.,electrode,electrolyte,and separator)to system and protocol optimization,furthermore,the connection between them,existing issues,and possible directions for future research are discussed.

关 键 词：SUPERCAPACITOR SELF-DISCHARGE Mechanisms Suppression strategies Remaining issues 

分 类 号：O57[理学—粒子物理与原子核物理]