Izotov V.Yu.

The Dependence of Integral Capacity of Double-Layer Electric Capacitor on Potential

The paper studies the dependence of supercapacitor’s integral capacity on potential. We prove that the capacity as a linear function depends on the potential. We also show that the neglect of the potential’s influence on supercapacitor capacity can result in significant failures at calculation of energy intensity.

Optimization of electrodes polarization component for supercapacitors

The paper considers the dependence of supercapacitor inner resistance on thickness of electrodes polarization component in order to optimize the microporous structure of the activated carbon material, utilized for electrode production, with the structure of transport channels inside electrodes. Employing the tier model, we describe electrochemical processes, occurring in porous electrodes.

The modeling and calculation of performance parameters of ultracapacitor

This paper provides insights into the study of the effect of internal charge relaxation on the time change of ultracapacitors’ main characteristics. Emphasized here is a proposed theoretical model, which describes the ultracapacitor’s state, depending on operation regime and duration. Within the framework of this model, we demonstrate that the ultracapacitor’s performance measurements should be conducted, considering internal charge relaxation processes and changes.

Optimization of structure of the activated carbon materials for supercapacitors

The study addresses the influence of the structure of porous carbon materials on the supercapacitors parameters. With in the theoretical model, the connection between parameters of electrochemical system and the structure of a porous material is established. In addition, the optimum structure of the porous material for supercapacitors is determined.