کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9760360 | 1498046 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of silicon/polypyrrole composite as anode materials for Li-ion batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Silicon and polypyrrole composites were synthesized using high-energy mechanical milling. The polypyrrole acts as a matrix to hold the active silicon grains as they repeatedly alloy with lithium during the operation of a lithium battery. Polypyrrole decreases the initial irreversible capacity loss of the silicon anode due to the reduction in the thickness of the solid electrolyte interface (SEI) layer formed. The composite containing 50Â wt% silicon obtained after milling for 4Â h exhibits a good reversibility, higher coulombic efficiency and better cycle life than the bare silicon.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 146, Issues 1â2, 26 August 2005, Pages 448-451
Journal: Journal of Power Sources - Volume 146, Issues 1â2, 26 August 2005, Pages 448-451
نویسندگان
Z.P. Guo, J.Z. Wang, H.K. Liu, S.X. Dou,