Abstract
Supercapacitors(SCs)have remarkable energy storage capabilities and have garnered considerable interest due to their superior power densities and ultra-long cycling characteristics.However,their comparatively low energy density limits their extensive application in large-scale commercial applications.Electrode materials directly affect the performance of SCs.Thus,the development of cutting-edge electrode materials and modification of their morphological and structural properties are vital for advancing the performance of SCs.Transition metal compounds have a high specific capacity and good cycling durability,making them the most promising electrode active materials for high-energy density SCs.Nevertheless,their inadequate conductivity,unfavorable ion diffusion rates,substantial volume expansion and phase transitions during charging and discharging are obstacles to their stable and efficient integration into SCs.To address these challenges,this study provides a comprehensive summary of the current advancements in transition metal nanoma-terials as electrode materials for SCs,an overview of the current research status,and the prevailing challenges.Furthermore,this study highlights synthetic techniques and management strategies for electrode materials derived from transition metal compounds,targeting the resolution of the aforementioned challenges.Finally,a concise discussion is provided on the future directions of SC development,with an emphasis on the utilization of transition metal com-pound electrode materials.
基金项目
National Natural Science Foundation of China(22301151)
Natural Science Foundation of Inner Mongolia Autonomous Region of China(2022QN05024)
Fundamental Scientific Research Funds for Universities directly under Inner Mongolia Autonomous Region of China(JY20230097)
Fundamental Scientific Research Funds for Universities directly under Inner Mongolia Autonomous Region of China(JY20220116)
Program for Innovative Research Team in Universities of Inner Mongolia Autonomous Region(NMGIRT2211)
Inner Mongolia University of Technology Key Discipline Team Project of Materials Science(ZD202012)
Young Leading Talent of"Grassland Talents"Project of Inner Mongolia Autonomous Region(QNU012010)
NETL
NSTL
万方数据