کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5438154 | 1398181 | 2017 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Porous Fe2O3 nanotubes as advanced anode for high performance lithium ion batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
One-dimensional porous Fe2O3 nanotubes with 2 µm length, 220 nm outer diameter and 65 nm wall thickness were firstly synthesized via a low temperature hydrothermal method followed by thermal treatment. As advanced anode for lithium ion batteries, porous Fe2O3 nanotubes exhibit obviously enhanced electrochemical properties in terms of lithium storage capacity (1050.1 mA h gâ1 at 100 mA gâ1 rate), initial coulombic efficiency (78.4%), cycle performances (90.6% capacity retention at 50th cycle), and rate capability (613.7 mA h gâ1 at 1000 mA gâ1 rate). This enhancement could be attributed to the one-dimensional nanostructure of porous Fe2O3 nanotubes which could increase contact area between electrolyte and active materials, shorten migration path for Li+ ions and electrons, and accommodate the volume variations via additional void space during cycling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 1, Part A, January 2017, Pages 363-367
Journal: Ceramics International - Volume 43, Issue 1, Part A, January 2017, Pages 363-367
نویسندگان
Mingchen Sun, Mengfei Sun, Hongxun Yang, Wanghua Song, Yu Nie, Shengnan Sun,