ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)

For citation:

Goffman V. G., Gorokhovskii A. V., Makarova A. D., Gorshkov N. V., Sulkhaev S. T., Zavitaeva D. D., Morozova N. O. Comparative cyclic voltammetry analysis of all-solid-state mock-up cells based on potassium polytitanate. Electrochemical Energetics, 2026, vol. 26, iss. 2, pp. 98-110. DOI: 10.18500/1608-4039-2026-26-2-98-110, EDN: YQRDFP

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
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Language: 
Russian
Heading: 
Supercapacitors
Article type: 
Article
UDC: 
541.13:546
DOI: 
10.18500/1608-4039-2026-26-2-98-110
EDN: 
YQRDFP

Comparative cyclic voltammetry analysis of all-solid-state mock-up cells based on potassium polytitanate

Autors: 
Goffman Vladimir Georgievich, The Saratov State Technical University of Gagarin Yu. A.
Gorokhovskii Aleksandr Vladilenovich, The Saratov State Technical University of Gagarin Yu. A.
Makarova Anna Dmitrievna, The Saratov State Technical University of Gagarin Yu. A.
Gorshkov Nikolai Vyacheslavovich, The Saratov State Technical University of Gagarin Yu. A.
Sulkhaev Samir T., The Saratov State Technical University of Gagarin Yu. A.
Zavitaeva Dar'ya Dmitrievna, The Saratov State Technical University of Gagarin Yu. A.
Morozova Natal'ya Olegovna, The Saratov State Technical University of Gagarin Yu. A.
Abstract: 

The work presents a comparative cyclic voltammetry analysis of all-solid-state mock-up cells based on potassium polytitanate. Most measurements were carried out at 25°C. Potassium polytitanate sample with 10 wt.% of phosphotungstic acid was studied at 0°C, followed by the Arrhenius estimate of its characteristics at 25°C. The study focuses on comparing integral capacitive characteristics, response stability at different scan rates and charge storage mechanisms determined using the Dunn and Trasatti methods. Additionally, the anodic and cathodic contributions to capacitance as indicators of reversibility, branch symmetry and kinetic non-equivalence between charge accumulation and release are examined. The combined use of total capacitance, surface-controlled and diffusion-limited contributions, outer and inner charge and Ca/Cc ratio makes it possible to identify the most promising all-solid-state cell configurations as well as to determine the samples which provide the best capacitance response and those with a higher rate stability and reversibility.

Key words: 
potassium polytitanate
cyclic voltammetry
fully solid-state cells
Dunn and Trasatti methods
anode and cathode capacitance
graphite
KOH
pseudocapacitance
electrode asymmetry
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Received: 
24.04.2026
Accepted: 
21.05.2026
Published: 
30.06.2026