کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5149115 | 1497877 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Template-engaged synthesis of spinel-layered Li1.5MnTiO4+δ nanorods as a cathode material for Li-ion batteries
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Spinel-layered composites of Li1.5MnTiO4+δ were studied for their use as high-energy, low-cost, and environmentally benign cathode materials. The bulk particles showed an attractive specific capacity of up to 250 mAh gâ1 at C/10. To improve the performance of this cathode at a high C-rate, a spinel-layered Li1.5MnTiO4+δ nanorod was successfully synthesized using a β-MnO2 nanorod template. The nanorod, which had an average diameter of 200 nm and a length of 1 μm, showed specific capacity as high as the bulk particle at C/10. However, owing to a one-dimensional nanostructure with a large effective contact area for Li+ diffusion, the nanorod sample exhibited enhanced capacities 11% (170 mAh gâ1) and 167% higher (80 mAh gâ1) at 1C and 10C rates, respectively, compared to the bulk particles. Moreover, both samples showed good cycle stability and capacity retention of over 85% after 100 cycles at 1C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 355, 1 July 2017, Pages 134-139
Journal: Journal of Power Sources - Volume 355, 1 July 2017, Pages 134-139
نویسندگان
Ngoc Hung Vu, Sanjith Unithrattil, Van Hien Hoang, Sangeun Chun, Won Bin Im,