发电技术2025，Vol.46Issue(6)：1176-1183,8.DOI:10.12096/j.2096-4528.pgt.24058
基于循环伏安法的热充电超级电容器数值研究
Numerical Study of Thermal Charging Supercapacitors Based on Cyclic Voltammetry
摘要
Abstract
[Objectives]The application of thermal charging supercapacitors in energy storage is constrained by the ionic characteristics of the electrolyte.This study aims to explore the impact of electrolyte ionic characteristics on the capacitance performance and power density of the device.Based on the principle of cyclic voltammetry,a numerical model for the thermal charging supercapacitors is developed using multi-physics field numerical simulation methods.[Methods]The effects of ion size ratio and ion type on capacitance performance and power density are investigated separately,and the variation pattern of cation concentration at the electrode solid-liquid interface under a given temperature difference is summarized.[Results]The current density and specific capacitance of thermal charging supercapacitors decrease as ion size ratio increases at low scan rates.At this point,the power density is mainly affected by the ion size ratio,and it decreases as the ion size ratio increases.At high scan rates,power density is mainly affected by the ion type.[Conclusions]This study proposes an optimization strategy for electrolyte ionic characteristics,which is important for numerical modeling and theoretical analysis of thermal charging supercapacitors.关键词
余热发电技术/超级电容器/循环伏安法/数值模型/离子特性/电流密度/功率密度/电容性能Key words
waste heat power generation technology/supercapacitors/cyclic voltammetry/numerical model/ionic characteristic/current density/power density/capacitive performance分类
能源科技引用本文复制引用
卞时刚,孟婷婷,杨理理..基于循环伏安法的热充电超级电容器数值研究[J].发电技术,2025,46(6):1176-1183,8.基金项目
国家自然科学基金项目(52488201).Project Supported by National Natural Science Foundation of China(52488201). （52488201）
