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Possible Causes of Lithium–Sulfur Battery Degradationстатья
- Авторы: Kulova T.L., Li S A., Ryzhikova E.V., Skundin A.M.
- Журнал: Russian Journal of Electrochemistry
- Том: 58
- Номер: 5
- Год издания: 2022
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 391
- Последняя страница: 397
- DOI: 10.1134/S102319352205007X
- Аннотация: To assess the possible degradation mechanisms of lithium–sulfur batteries during their cycling, cyclic voltammograms of sulfur electrode in normalized coordinates were analyzed. A capacity decrease at the low-voltage plateau is shown to correspond to the decrease in the active material amount, whereas decrease at the high-voltage plateau is characterized by a decrease in the reduction depth. The sulfur solubility in the dioxolane–dimethoxyethane mixture (1 : 1) is measured; it is about 0.2 M at room temperature. It is concluded that the shuttle transfer of polysulfides is not the only cause of the degradation: the transfer of dissolved sulfur also makes a significant contribution.
- Добавил в систему: Кулова Татьяна Львовна