کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11005941 | 1498218 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical performance and morphological evolution of hollow Sn microspheres
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
چکیده انگلیسی
Using shell-like structures in lithium-ion battery (LIB) can limit the structural degradation/damage induced by the volumetric change during electrochemical cycling. In this work, we synthesize hollow Sn microspheres (Sn-HMSs) via a galvanic replacement reaction, and study the electrochemical performance of the lithium-ion cells with Sn-HMSs as the working electrode. The lithium-ion cells have a charge capacity of 205.9â¯mAâ¯hâ¯gâ1 after 100â¯cycles at a current density of 100â¯mAâ¯gâ1. In comparison with the charge capacities of 148â¯mAâ¯hâ¯gâ1 of solid Sn nanospheres and 516.1â¯mAâ¯hâ¯gâ1 of hollow Sn nanospheres, the results reported in this work reveal the importance of shell-like structures in the retention of the energy storage for LIBs and the size effect on the energy storage. The smaller the hollow Sn spheres, the better is the cycle performance. There are two modes of structural degradation/damage contributing to the capacity loss during electrochemical cycling; one is the disintegration of the Sn-HMSs, and the other is the fracturing of the electrode layer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 325, 1 November 2018, Pages 120-127
Journal: Solid State Ionics - Volume 325, 1 November 2018, Pages 120-127
نویسندگان
Meiqing Guo, Xiaogang Zhang, Weijia Meng, Xiao Liu, Genwei Wang, Zhongchao Bai, Zhihua Wang, Fuqian Yang,