کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7999041 | 1516261 | 2015 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical evaluation of LiAl0.05Ni0.05Mn1.9O4 cathode material synthesized via electrospinning method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
One-dimensional LiAl0.05Ni0.05Mn1.9O4 nanofibers are prepared by an electrospinning method followed by calcination process to investigate the influences of Al/Ni dual-doping on the structural and electrochemical properties of as-prepared cathode materials for Li-ion batteries. X-ray diffraction (XRD) and scanning electron microscope (SEM) characterization results indicate that the as-prepared material have good crystallinity and uniform morphology. Galvanostatic charge-discharge tests demonstrate LiAl0.05Ni0.05Mn1.9O4 has an improved cyclic performance at 25 °C and high temperature (55 °C), which originates from the enhanced stability by decreasing lattice constant and suppression of Jahn-Teller effect revealed by XPS analysis. Moreover, From the EIS analysis, it is revealed reduced charge transfer resistance of LiAl0.05Ni0.05Mn1.9O4 compared with those of undoped LiMn2O4.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 632, 25 May 2015, Pages 147-151
Journal: Journal of Alloys and Compounds - Volume 632, 25 May 2015, Pages 147-151
نویسندگان
Xianan Ding, Hongwei Zhou, Guicheng Liu, Zhuang Yin, Ying Jiang, Xindong Wang,