کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7993703 | 1516154 | 2018 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ni-doping to improve the performance of LiFeBO3/C cathode material for lithium-ion batteries
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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: Ni-doping to improve the performance of LiFeBO3/C cathode material for lithium-ion batteries Ni-doping to improve the performance of LiFeBO3/C cathode material for lithium-ion batteries](/preview/png/7993703.png)
چکیده انگلیسی
Ni-doping is used to improve the performance of LiFeNiBO3/C for the first time. The structure and electrochemical properties of as-prepared Ni-doped samples (LiFe1-xNixBO3/C) are investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscope, electrochemical impedance spectroscopy, and galvanostatic charge-discharge tests. The results show that LiFe1-xNixBO3/C composites consisted of similar spherical particles are linked and well-coated by nano-carbon frameworks, forming a multi-layer core-shell structure. Moreover, the substitution content of iron by nickel has significant effect on the electrochemical characteristics, especially for the rate performance. Particularly, the LiFe0.94Ni0.06BO3 shows the best electrochemical property, exhibiting a discharge capacity of 201.5Â mAh gâ1 at a current density of 10Â mAÂ gâ1. The results indicate that Ni doping in LiFeBO3/C can effectively enhance the electrochemical performance, especially at a high charge/discharge rate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 740, 5 April 2018, Pages 382-388
Journal: Journal of Alloys and Compounds - Volume 740, 5 April 2018, Pages 382-388
نویسندگان
Bao Zhang, Lei Ming, Hui Tong, Jia-feng Zhang, Jun-chao Zheng, Xiao-wei Wang, Hui Li, Lei Cheng,