کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7727198 | 1497904 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Facile synthesis of self-supported Ni2P nanosheet@Ni sponge composite for high-rate battery
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
To meet the requirements for high-rate battery with desirable performance, a self-supported Ni2P@Ni sponge electrode is synthesized via simple steps, in which the Ni sponge substrate is synthesized by a one-pot hydrothermal method and the Ni2P nanosheets grown on the novel substrate are converted from Ni(OH)2 via a phosphorization reaction. This hybrid composite combines the 3D porous structure of Ni sponge and high capacity of Ni2P nanosheets, which exhibits lightweight, flexible and highly-conductive properties, resulting in an excellent specific capacity of 430.3 mAh gâ1 at a current density of 1 A gâ1 and remaining as high as 77.0% capacity even at 40 A gâ1. More importantly, the Ni2P@Ni sponge//C cell exhibits the maximum energy density of 182.1 W h kgâ1 at a power density of 205 W kgâ1 along with superior capacity retention of 85.2% after 3000 cycles. It is suggested that the Ni2P nanosheet@ Ni sponge composite is a promising electrode material for high-rate batteries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 328, 1 October 2016, Pages 405-412
Journal: Journal of Power Sources - Volume 328, 1 October 2016, Pages 405-412
نویسندگان
F. Shi, D. Xie, Y. Zhong, D.H. Wang, X.H. Xia, C.D. Gu, X.L. Wang, J.P. Tu,