TY - JOUR AU - Kolkovska, H.M. AU - Rachiy, B.I. AU - Kolkovskyi, P.I. AU - Yaremiy, I.P. AU - Ivanichok, N.Ya. AU - Lisovskiy, R.P. AU - Ilnytskyi, N.R. PY - 2021/11/11 Y2 - 2024/03/29 TI - Mechanisms of charge accumulation of the electrochemical system LaMnO3 / AC: Array JF - Physics and Chemistry of Solid State JA - Phys. Chem. Sol. State VL - 22 IS - 4 SE - Scientific articles (Physics) DO - 10.15330/pcss.22.4.644-654 UR - https://journals.pnu.edu.ua/index.php/pcss/article/view/5104 SP - 644-654 AB - <p>In this work, the electrochemical behavior of LaMnO<sub>3 </sub>perovskite material and nanoporous carbon material in an aqueous solution of lithium sulfate are studied. The regularities of the expediency of the joint functioning of these materials as electrodes for a hybrid electrochemical capacitor are determined. It was found that the value of the specific capacity of the investigated electrochemical system of LaMnO<sub>3</sub> / electrolyte / AC is 52 F/g during the discharge of the system to 1 V and the value of specific energy is 112.1 J /g at a discharge current of 1 mA.</p> ER -