کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5458530 | 1516164 | 2018 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical performance of Co-doped LiVPO4F/C composite cathode material for lithium ion batteries prepared by modified solid state method
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electrochemical performance of Co-doped LiVPO4F/C composite cathode material for lithium ion batteries prepared by modified solid state method Electrochemical performance of Co-doped LiVPO4F/C composite cathode material for lithium ion batteries prepared by modified solid state method](/preview/png/5458530.png)
چکیده انگلیسی
The LiV1-xCoxPO4F/C (x = 0, 0.01, 0.03 and 0.05) composite cathode material for lithium ion batteries has been successfully prepared through the modified solid state method assisted by sonication and mechanical activation. Here, the influence of cobalt doping on the physical and electrochemical performances are investigated. In this paper, we adopted the X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM)/energy dispersive spectrometer (EDS), cycle voltammetry (CV), electrochemical impedance spectrum (EIS) and charge-discharge test to investigate the influence of cobalt doping on the different aspects of the materials, including the physical and electrochemical properties. Compared with the original simple, the cycle and rate performance of cobalt doped samples has increased to some extent. We found that the LiV0.97Co0.03PO4F/C sample showed the best electrochemical performance. The lithium ions diffusion constant (DLi+) of the LiV0.97Co0.03PO4F/C (1.86321 Ã 10â13 cm2 sâ1) is much higher than that of LiVPO4F/C (2.06453 Ã 10â14 cm2 sâ1).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 730, 5 January 2018, Pages 261-269
Journal: Journal of Alloys and Compounds - Volume 730, 5 January 2018, Pages 261-269
نویسندگان
Zhongdong Peng, Zhanggen Gan, Ke Du, Yanbing Cao, Xiaoming Xie, Yong Wang, Yuanjun Li, Guorong Hu,