کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7740295 | 1497992 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and electrochemical properties of LiNi0.5âxCuxMn1.5âyAlyO4 (x = 0, 0.05, y = 0, 0.05) as 5 V spinel materials
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The LiNi0.5âxCuxMn1.5âyAlyO4 (x = 0, 0.05, y = 0, 0.05) powders are synthesized by liquid co-precipitation and wet-milling. The doping effect on LiNi0.5Mn1.5O4 by Al3+, Cu2+, and Al3+/Cu2+ co-doping are investigated and compared in relation to physical and electrochemical characterization, namely, through X-ray diffraction, scanning electron microscopy, electronic conductivity, cyclic voltammetry and cycle tests. Results suggest that both Al3+ and Cu2+ doping effectively improve electrochemical performance of LiNi0.5Mn1.5O4, although the effect is different between the two cations. All doped samples exceed 95% capacity retention after 100 cycles at room temperature compared to 92% retention for the undoped sample. Moreover, co-doped LiNi0.45Cu0.05Mn1.45Al0.05O4 exhibits the best cyclic performance with slight superiority.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 240, 15 October 2013, Pages 95-100
Journal: Journal of Power Sources - Volume 240, 15 October 2013, Pages 95-100
نویسندگان
Jianhong Liu, Zhaoqin Sun, Jiaona Xie, Hongyu Chen, Ningning Wu, Borong Wu,