کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6578475 | 1422928 | 2018 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hollow irregular octahedra-like NiCo2O4 cages composed of mesoporous nanosheets as a superior anode material for lithium-ion batteries
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Hollow irregular octahedra-like NiCo2O4 cages composed of mesoporous nanosheets have been prepared by a facile template-assisted strategy under the auxiliary action of hydroxypropyl cellulose. As an anode material for lithium ion batteries, such a hierarchical hollow nanostructure can greatly alleviate volume change and effectively shorten lithium ion diffusion distance, as a result, it exhibits superior lithium ion storage performance with excellent cyclability and great rate capability. A reversible charge capacity of 903â¯mAhâ¯gâ1 at 0.2â¯Aâ¯gâ1 is obtained in the first cycle, and 85.3% of the 2nd discharge capacity is retained after 300 cycles at 0.5â¯Aâ¯gâ1. After tested at various current densities from 0.2 to 1.4â¯Aâ¯gâ1, the reversible capacity can recover to 885â¯mAhâ¯gâ1 at 0.2â¯Aâ¯gâ1. These results suggest a promising application for advanced energy storage units.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 350, 15 October 2018, Pages 29-36
Journal: Chemical Engineering Journal - Volume 350, 15 October 2018, Pages 29-36
نویسندگان
Xiaoyi Hou, Song Xue, Mengting Liu, Xiaonan Shang, Yujun Fu, Deyan He,