超级电容器
电池(电)
电极
材料科学
电容器
制作
电化学
储能
纳米技术
功率(物理)
计算机科学
光电子学
电压
电气工程
化学
物理
工程类
量子力学
医学
病理
物理化学
替代医学
作者
Man-Chen Huang,Karthik Kiran Sarigamala,Hsun-Yi Chen
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2023-10-01
卷期号:170 (10): 103508-103508
标识
DOI:10.1149/1945-7111/acfff9
摘要
Theoretical and experimental understanding of physical and electrochemical mechanisms in hybrid supercapacitors will help improve their energy/power densities. This work explores a simulation-guided design for the fabrication of a high-performance hybrid supercapacitor rendered using optimized COMSOL simulation parameters acquired from Newman’s porous electrode theory. The comprehensive virtual simulations fostered a superior battery-type hybrid electrode with MnO 2 nanoclusters formulated over reticulated vitreous carbon. The electrochemical phenomena in the hybrid capacitor were examined using three variables, namely the pore sizes, thicknesses of the positive electrode and the weight ratio of the active material on the negative electrode. The controllable design parameters were identified using numerical simulations and matched with experiments cost-effectively. Thus, the simulations facilitated the experimental fabrication of a superior hybrid battery-type electrode, and charge balancing on the electrodes helped to maximize the energy and power densities. These experimentally validated simulations give new insight that can aid the development of similar hybrid capacitor systems.
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