کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7993761 | 1516155 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sb embedded TiO2/C spheres as high cyclability anode for lithium ion battery
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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: Sb embedded TiO2/C spheres as high cyclability anode for lithium ion battery Sb embedded TiO2/C spheres as high cyclability anode for lithium ion battery](/preview/png/7993761.png)
چکیده انگلیسی
Hollow TiO2/Sb/C spheres that nano Sb embedded into the interlayer between inner hollow TiO2 sphere and outer carbon layer, were designed, synthesized and investigated. The physical properties were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The electrochemical performances were acquired by discharge/charge cycles, rate cycles, cyclic voltammograms (CVs) and electrochemical impedance spectra (EIS). The results indicated that nano Sb embedded did not decline the cycle stability and rate property of TiO2/C anode, but its reversible capacity was increased by a large margin. Li+ diffusion coefficient of TiO2/Sb/C-2 and TiO2/Sb/C-1 reached to 4.76Â ÃÂ 10â16Â cm2Â sâ1 and 4.10Â ÃÂ 10â16Â cm2Â sâ1, while the value of TiO2/C was 2.46Â ÃÂ 10â16Â cm2Â sâ1. At 1000Â mAÂ gâ1, initial reversible capacity for TiO2/Sb/C-2 reached to 230.6Â mAh gâ1, and its capacity loss per cycle was only 0.0201% from 2nd to 1200th cycle. This work provided a conception to manufacture high capacity TiO2-based anodes for lithium ion battery.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 739, 30 March 2018, Pages 1-8
Journal: Journal of Alloys and Compounds - Volume 739, 30 March 2018, Pages 1-8
نویسندگان
Xun Jiao, Tianbiao Zeng, Penghui Ji, Qimeng Peng, Biao Shang, Xuebu Hu,