کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7738775 | 1497985 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Li[Li0.2Mn0.54Ni0.13Co0.13]O2-MoO3 composite cathodes with low irreversible capacity loss for lithium ion batteries
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Li[Li0.2Mn0.54Ni0.13Co0.13]O2-MoO3 composite cathodes with low irreversible capacity loss for lithium ion batteries Li[Li0.2Mn0.54Ni0.13Co0.13]O2-MoO3 composite cathodes with low irreversible capacity loss for lithium ion batteries](/preview/png/7738775.png)
چکیده انگلیسی
To reduce the large first-cycle irreversible capacity loss of the Li-rich layered cathode material Li[Li0.2Mn0.54Ni0.13Co0.13]O2, MoO3 has been introduced by a simple high-energy ball milling process. The electrochemical properties of cathode material Li[Li0.2Mn0.54Ni0.13Co0.13]O2 and the influences of different MoO3 amount on its electrochemical properties are discussed in detail. The first charge-discharge dQ/dV curves suggest that the MoO3 component provides additional sites for lithium ion insertion to compensate the lost Li sites caused by the simultaneous removal of Li+ and O2â during the activation of Li[Li0.2Mn0.54Ni0.13Co0.13]O2. With increasing MoO3 content from 0 wt.% to 20 wt.%, the first-cycle irreversible capacity loss of the composite decreases from 81.8 mAh gâ1 to 1.2 mAh gâ1. The composite with 5 wt.% MoO3 exhibits a good cycling stability with the discharge capacity of 242.5 mAh gâ1 after 50 cycles, and the thickness of the MoO3 coating layer on the surface of Li[Li0.2Mn0.54Ni0.13Co0.13]O2 is about 3-4 nm. However, with the increase of the addition content of MoO3, the cycling stability of the Li[Li0.2Mn0.54Ni0.13Co0.13]O2-MoO3 composite is decreased.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 247, 1 February 2014, Pages 20-25
Journal: Journal of Power Sources - Volume 247, 1 February 2014, Pages 20-25
نویسندگان
Feng Wu, Zhao Wang, Yuefeng Su, Na Yan, Liying Bao, Shi Chen,