新型炭材料2021,Vol.36Issue(1):49-68,20.DOI:10.1016/S1872-5805(21)60004-5
多孔炭对超级电容器电荷存储的影响
A review of charge storage in porous carbon-based supercapacitors
摘要
Abstract
Porouscarbon-based electrode materials have been widely used in supercapacitors (SCs) because of their good physi-cochemical stability, high specific surface area, adjustable pore structure, and excellent electrical conductivity. The factors influen-cing their SC performance are analyzed, which include specific surface area, pore structure, surface heteroatoms, structural defects and electrode structure. The high surface area accessible to ions provides abundant active sites for their storage, while a suitable pore structure is important for the accommodation and diffusion of ions, thereby influencing the specific capacitance and rate perform-ance of the electrodes. An appropriate pore size with a narrow distribution is required to increase the volumetric energy density while mesopores are favorable for ion transport, so a good balance between micro and mesopore volumes is important to improve both the energy and power densities of the SCs. Structural defects, surface heteroatoms and a rational electrode structural design all play sig-nificant roles in the capacitance performance.关键词
超级电容器/多孔炭/比表面积/孔结构/电极结构Key words
Supercapacitors/Porous carbons/Specific surface area/Pore structure/Electrode structure分类
化学化工引用本文复制引用
罗先游,陈永,莫岩..多孔炭对超级电容器电荷存储的影响[J].新型炭材料,2021,36(1):49-68,20.基金项目
国家自然科学基金(52062012) (52062012)
海南省重点研发项目(ZDYF2020028).This work was supported by the National Natur-al Science Foundation of China (52062012), Key Sci-ence & Technology Project of Hainan Province (ZDYF2020028). (ZDYF2020028)