کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7991467 | 1516141 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced electrochemical and safe performances of LiNi1/3Co1/3Mn1/3O2 by nano-CeO2 coating via a novel hydrolysis precipitate reaction route
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
The homogeneous nano-CeO2 coated on the LiNi1/3Co1/3Mn1/3O2 powder like substrate was prepared via a novel hydrolytic precipitation reaction followed by the thoroughly baking at 450â¯Â°C. The chemical composite of nano-CeO2 coating layer was spectroscopically examined by X-ray diffraction, field-emission scanning electron microscopy and X-ray photoelectron spectrometer. The electrochemical characterization of the resulting materials proclaim that nano-CeO2 coating can drastically improve lithium storage performances. The optimum coating amount of CeO2 is as high as 2â¯wt%, which rendered a discharge capacity of 148.9â¯mAh gâ1 with 91.6% capacity retention ensuing as many as 100 cycles. In particular, the exothermic peak is vastly increased from 256.4 to 338.2â¯Â°C. The value is superior to its counterparts, LiNi1/3Co1/3Mn1/3O2. It paves a new avenue for developing high safety lithium batteries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 753, 15 July 2018, Pages 155-161
Journal: Journal of Alloys and Compounds - Volume 753, 15 July 2018, Pages 155-161
نویسندگان
Cuixia Cheng, Fang Chen, Huiyang Yi, Guosong Lai,