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Effect of the Solvate Environment of Lithium Cations on the Resistance of the Polymer Electrolyte/Electrode Interface in a Solid-State Lithium Batteryстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Chernyak Alexander V., Slesarenko Nikita A., Slesarenko Anna A., Baymuratova Guzaliya R., Tulibaeva Galiya Z., Yudina Alena V., Volkov Vitaly I., Shestakov Alexander F., Yarmolenko Olga V.
- Журнал: Membranes
- Том: 12
- Номер: 11
- Год издания: 2022
- Издательство: MDPI Publishing
- Местоположение издательства: Basel, Switzerland, Switzerland
- Первая страница: 1111
- DOI: 10.3390/membranes12111111
- Аннотация: The effect of the composition of liquid electrolytes in the bulk and at the interface with the LiFePO4 cathode on the operation of a solid-state lithium battery with a nanocomposite polymer gel electrolyte based on polyethylene glycol diacrylate and SiO2 was studied. The self-diffusion co-efficients on the 7Li, 1H, 19F nuclei in electrolytes based on LiBF4 and LiTFSI salts in solvents (gamma-butyrolactone, dioxolane, dimethoxyethane) were measured by nuclear magnetic res-onance (NMR) with a magnetic field gradient. Four compositions of the complex electrolyte system were studied by high-resolution NMR. The experimentally obtained chemical shifts on the 1H nuclei are compared with those theoretically calculated by quantum chemical modeling, which made it possible to suggest solvate shell compositions that facilitate the rapid transfer of the Li+ cation at the nanocomposite electrolyte/LiFePO4 interface and ensure the stable operation of a solid-state lithium battery.
- Добавил в систему: Ярмоленко Ольга Викторовна