کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7990971 | 1516132 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancing the electrochemical performances of LiNi0.5Mn1.5O4 by Co3O4 surface coating
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Enhancing the electrochemical performances of LiNi0.5Mn1.5O4 by Co3O4 surface coating Enhancing the electrochemical performances of LiNi0.5Mn1.5O4 by Co3O4 surface coating](/preview/png/7990971.png)
چکیده انگلیسی
A Co3O4 coating is formed on the surface of LiNi0.5Mn1.5O4 particles via an ethanol mediated precipitation method. The existence of the uniform Co3O4 coating is clearly observed by scanning electron microscopy and transmission electron microscopy. The results of electrochemical performance testing prove that the Co3O4 coating can greatly enhance the cycling stability and rate performance of LiNi0.5Mn1.5O4. The optimal sample 5% Co3O4-coated LiNi0.5Mn1.5O4 delivers a discharge capacity 126â¯mAh gâ1 at 1â¯C rate with a capacity retention 96.8% after 300 cycles and a high discharge capacity 97.5â¯mAh gâ1 at 10â¯C rate. The causes to the improvement are discussed based on elemental analysis, X-ray photoelectron spectroscopy and electrochemical impedance spectroscopy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 762, 25 September 2018, Pages 163-170
Journal: Journal of Alloys and Compounds - Volume 762, 25 September 2018, Pages 163-170
نویسندگان
Miao-Miao Deng, Zhong-Feng Tang, Yu Shao, Xiao-Dong He, Zhao-Yin Wen, Chun-Hua Chen,