Single-, Double-, and Multi-Walled Carbon Nanotubes as Electrically Conductive Additives to Lithium-Ion Battery Cathodes

Babkin, A.V.; Kubarkov, A.V.; Drozhzhin, O.A.; Urvanov, S.A.; Filimonenkov, I.S.; Tkachev, A.G.; Mordkovich, V.Z.; Sergeyev, V.G.; Antipov, E.V.

Авторы: Babkin A.V., Kubarkov A.V., Drozhzhin O.A., Urvanov S.A., Filimonenkov I.S., Tkachev A.G., Mordkovich V.Z., Sergeyev V.G., Antipov E.V.
Журнал: Doklady Chemistry
Том: 508
Номер: 1
Год издания: 2023
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 1
Последняя страница: 9
DOI: 10.1134/s001250082360013x
Аннотация: The characteristics of lithium iron phosphate cathodes containing various types of commercially available carbon nanotubes—single-walled (SWCNTs), double-walled (DWCNTs), and multi-walled (MWCNTs)—have been compared. Electrochemical characteristics of the cathode materials have been studied by electrochemical impedance spectroscopy and galvanostatic charge/discharge measurements. The cyclic stability at various current densities has been estimated. The best electrochemical characteristics are shown by the cathode materials containing SWCNTs (advantage over the DWCNT-based cathode materials at discharge rates higher than 10C) and DWCNTs (advantage over the SWCNT-based cathode materials during long-term cycling). During the long-term cycling at a current density of 1C, the greatest loss of capacity is observed for the MWCNT-based electrode. At the same time, the SWCNT- and DWCNT-based electrodes demonstrate satisfactory capacity retention after 50 charge/discharge cycles: over 94 and 98%, respectively.
Добавил в систему: Бабкин Александр Викторович

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Single-, Double-, and Multi-Walled Carbon Nanotubes as Electrically Conductive Additives to Lithium-Ion Battery Cathodesстатья

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