کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1636843 1516982 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Silicon/flake graphite/carbon anode materials prepared with different dispersants by spray-drying method for lithium ion batteries
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Silicon/flake graphite/carbon anode materials prepared with different dispersants by spray-drying method for lithium ion batteries
چکیده انگلیسی
Silicon/flake graphite/carbon (Si/FG/C) composites were synthesized with different dispersants via spray drying and subsequent pyrolysis, and effects of dispersants on the characteristics of the composites were investigated. The structure and properties of the composites were determined by X-ray diffractometry (XRD), scanning electron microscopy (SEM) and electrochemical measurements. The results show that samples have silicon/flake graphite/amorphous carbon composite structure, good spherical appearances, and better electrochemical performance than pure nano-Si and FG/C composites. Compared with the Si/FG/C composite using washing powder as dispersant, the Si/FG/C composite using sodium dodecyl benzene sulfonate (SDBS) as dispersant has better electrochemical performance with a reversible capacity of 602.68 mA·h/g, and a capacity retention ratio of 91.58 % after 20 cycles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 23, Issue 5, May 2013, Pages 1413-1420
نویسندگان
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