Doped Lithium Titanates and their Composites with Carbon Nanotubes as Anodes for Lithium-Ion Batteriesстатья
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Дата последнего поиска статьи во внешних источниках: 5 марта 2025 г.
Аннотация:Abstract—Lithium titanates Li4+xTi5–xMxO12 (M = Sc, Ga, Al, Cr; x = 0, 0.05, 0.1, 0.15) and their composites with carbon nanotubes were synthesized by the sol–gel method and characterized using X-ray powder diffraction, scanning electron microscopy, impedance spectroscopy, and 7Li MAS NMR spectroscopy; their electrochemical performance was studied. Doping with trivalent cations leads to a decrease in the mobility of lithium ions in Li4+xTi5–xMxO12, which indicates that lithium transport through vacancies predominates in these materials. The best electrochemical characteristics were found for the Li4+xTi5–xMxO12 composites with carbon nanotubes.