Nickel sulfide-based energy storage materials for high-performance electrochemical capacitors  

作　　者：Ramyakrishna Pothu Ravi Bolagam Qing-Hong Wang Wei Ni Jin-Feng Cai Xiao-Xin Peng Yue-Zhan Feng Jian-Min Ma 

机构地区：[1]School of Physics and Electronics,Hunan University,Changsha,410082,China [2]School of Chemistry and Materials Science,Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials,Jiangsu Normal University,Xuzhou,221116,China [3]Institute for Advanced Study,Chengdu University,Chengdu,610106,China [4]Faculty of Technology,University of Oulu,Oulu,90014,Finland [5]Yiyang Wanjingyuan Electronics Co.,Ltd.,Yiyang,413000,China [6]Key Laboratory of Materials Processing and Mold(Zhengzhou University),Ministry of Education,Zhengzhou University,Zhengzhou,450002,China

出　　处：《Rare Metals》2021年第2期353-373,共21页稀有金属（英文版）

基　　金：the National Natural Science Foundation of China(Nos.51302079,51702138 and 51403193);the Natural Science Foundation of Hunan Province(No.2017JJ1008);the Key Research and Development Program of Hunan Province of China(No.2018GK2031)。

摘　　要：Supercapacitors are favorable energy storage devices in the field of emerging energy technologies with high power density,excellent cycle stability and environmental benignity.The performance of supercapacitors is definitively influenced by the electrode materials.Nickel sulfides have attracted extensive interest in recent years due to their specific merits for supercapacitor application.However,the distribution of electrochemically active sites critically limits their electrochemical performance.Notable improvements have been achieved through various strategies such as building synergetic structures with conductive substrates,enhancing the active sites by nanocrystallization and constructing nanohybrid architecture with other electrode materials.This article overviews the progress in the reasonable design and preparation of nickel sulfides and their composite electrodes combined with various bifunctional electric double-layer capacitor(EDLC)-based substances(e.g.,graphene,hollow carbon)and pseudocapacitive materials(e.g.,transition-metal oxides,sulfides,nitrides).Moreover,the corresponding electrochemical performances,reaction mechanisms,emerging challenges and future perspectives are briefly discussed and summarized.

关 键 词：SUPERCAPACITORS Nickel sulfides Hybrid structures Energy storage materials PSEUDOCAPACITANCE 

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