کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7739380 | 1497987 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Li4Ti5O12 modified with Ag nanoparticles as an advanced anode material in lithium-ion batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A three-step solid state synthesis was used to produce powders of spinel phase Li4Ti5O12 with crystallite size in a few hundred nanometers range. This was followed by surface modification through the deposition of 2-10Â nm Ag nanoparticles, as verified by scanning and transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy. The electrochemical performance of these Li4Ti5O12/n-Ag composite powders was examined by chronopotentiometry in three-electrode Swagelok cells. These measurements showed excellent high-rate performance and remarkably good cyclability of the fabricated powders. Specifically, capacity retention in excess of 86% after raising the discharge current from 1C to 10C and less than 6% of capacity loss after 50 charge/discharge cycles at 1C current rate were measured.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 245, 1 January 2014, Pages 764-771
Journal: Journal of Power Sources - Volume 245, 1 January 2014, Pages 764-771
نویسندگان
Michal Krajewski, Monika Michalska, Bartosz Hamankiewicz, Dominika Ziolkowska, Krzysztof P. Korona, Jacek B. Jasinski, Maria Kaminska, Ludwika Lipinska, Andrzej Czerwinski,