- PII
- 10.31857/S0424857024050041-1
- DOI
- 10.31857/S0424857024050041
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 60 / Issue number 5
- Pages
- 361-372
- Abstract
- The goal of this work was to confirm our earlier conclusion that the regularities observed during the electrodeposition of metallic lithium on copper and lithium electrodes can be associated with differences in the properties of the so-called solid electrolyte interphase (SEI), which is formed on these electrodes in contact with the electrolyte. To do this, we analyzed the electrochemical impedance spectra measured during the above processes by the method of distribution of relaxation times (DRT). It was shown that the addition of surfactants to the electrolyte such as cetyltrimethylammonium bromide and hexadecylpyridinium bromide lead to a significant change in the properties of the SEI layers and a noticeable increase in the values of the impedance components associated with the Faradaic processes on these electrodes, which indicates inhibition of the lithium electrodeposition processes and the related process of dendrite formation under these conditions. At the same time, no such impedance components were observed on the freshly formed deposit, which confirms our earlier conclusion that the effects of surfactants on dendrite formation are associated with the changes in the properties of SEI layers in the presence of surfactants rather than the surfactants adsorbing on lithium and blocking the dendrite growth.
- Keywords
- литиевые источники тока с металлическим анодом электрохимическая импедансная спектроскопия распределение времен релаксации distribution of relaxation times (DRT) твердоэлектролитная интерфаза solid electrolyte interphase (SEI)
- Date of publication
- 01.05.2024
- Year of publication
- 2024
- Number of purchasers
- 0
- Views
- 73
References
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