ЕЛЕКТРОХІМІЧНІ ХАРАКТЕРИСТИКИ ПЛІВОК ОЛОВА ПРИ ЦИКЛУВАННІ В ЛІТІЙ-ІОННИХ АКУМУЛЯТОРАХ

• Дата: 2019
• Автори та афіліації: Yurii Shmatok — Joint Department оf Electrochemical Energy Systems оf NAS оf Ukraine, Vernadskogo blvd, 38а, Kyiv, 03680, Ukraine; Natalia Globa — Joint Department оf Electrochemical Energy Systems оf NAS оf Ukraine, Vernadskogo blvd, 38а, Kyiv, 03680, Ukraine; Vasyl Nikitenko — Vernadsky Institute of General & Inorganic Chemistry of National Academy of Sciences of Ukraine, Academic Palladin Avenue, 32/34, Kyiv, 03142; Eugen Babenkov — Vernadsky Institute of General & Inorganic Chemistry of National Academy of Sciences of Ukraine, Academic Palladin Avenue, 32/34, Kyiv, 03142; Valeriy Kublanovsky — Vernadsky Institute of General & Inorganic Chemistry of National Academy of Sciences of Ukraine, Academic Palladin Avenue, 32/34, Kyiv, 03142
• Ключові слова: keywords
• Автори: Shmatok, Yurii, Globa, Natalia, Nikitenko, Vasyl, Babenkov, Eugen, Kublanovsky, Valeriy
• Формат: Стаття
• Мова: Англійська
• Опубліковано: V.I.Vernadsky Institute of General and Inorganic Chemistry 2019
• Онлайн доступ: https://ucj.org.ua/index.php/journal/article/view/88
• Назва журналу: Ukrainian Chemistry Journal

Thin electrolytic fine tin sediments were obtained from pyrophosphate electrolyte under different electrolysis conditions and duration. The electrochemical characteristics of tin coatings as anode materials of lithium-ion batteries are studied using potentiodynamic and galvanostatic cycling methods. The effect of the properties of coatings, in particular their mass, on the value of specific capacitance and its stability, including during discharge with different current densities, has been established. It is shown that the studied tin sediments have high initial specific capacity that is close to theoretically possible. The maximum stability of the specific capacity during cycling is characteristic of electrodes with minimal masses of precipitation. The impedance spectra recorded for the studied electrodes in the initial state and after the first lithiation are analyzed.