Abstract

In this work, the porous structure of a carbon material and a crystalline structure of NiWO₄ have been investigated. The electrochemical performance of symmetric and hybrid asymmetric supercapacitors was investigated by cyclic voltammetry and galvanostatic cycling methods. The processes occur mainly at the electrode-electrolyte interface have been analyzed. It was determined that at discharge currents of 1 and 5 mA, the specific capacitance value for the hybrid asymmetric supercapacitors twice exceeds the given value for the symmetric ones under the same conditions.

中文翻译：

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基于碳钨酸镍的电化学系统中电荷机理的积累

摘要

在这项工作中，已经研究了碳材料的多孔结构和NiWO ₄的晶体结构。通过循环伏安法和恒电流循环法研究了对称和混合不对称超级电容器的电化学性能。已经分析了主要发生在电极-电解质界面处的过程。已确定在1和5 mA的放电电流下，混合非对称超级电容器的比电容值在相同条件下两次超过对称超级电容器的给定值。