کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5149717 | 1497886 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Silicon micropowder negative electrode endures more than 1000 cycles when a surface-roughened clad current collector is used
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A surface-roughened clad (S-clad) current collector significantly extends the cycle-life of the lithium ion negative electrode composed of a silicon micropowder and an aqueous binder. The high tensile strength of the S-clad is also proved to be important for improving the battery performance of the electrode by comparison to a surface-roughened pure Cu current collector. Moreover, adding 10 vol.% fluoroethylene carbonate to the electrolyte further extends the cycle-life of the Si electrode. The synergic effect of the high adhesive and tensile strength of the S-clad current collector as well as the electrolyte additive results in maintaining the reversible capacity of 1000 mA h gâ1 for more than 1000 cycles, in which 1.0-1.2 mg cmâ2 of the active material is loaded on the electrode.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 346, 1 April 2017, Pages 128-133
Journal: Journal of Power Sources - Volume 346, 1 April 2017, Pages 128-133
نویسندگان
Riki Kataoka, Yoshimitsu Oda, Ryouji Inoue, Norioki Kawasaki, Nobuhiko Takeichi, Tetsu Kiyobayashi,