کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
187169 | 459637 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Good cycling performance of high-density arrays of Si microwires as anodes for Li ion batteries
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Optimized Si wire anodes have been prepared by macropore etching in p-Si and subsequent chemical/galvanic processing. The anodes have been optimized with respect to capacity, cycling performance and processing costs by fine-tuning the wire geometry. The optimized anodes have wires with ≈1 μm in diameter and length of 70 μm; they are as densely spaced as possible regarding volume expansion and electrolyte penetration requirements. A stable capacity of 3150 mAh/g for 100 cycles has been reached during cycling to 75% of the maximum capacity. The operational range of the anodes is 0.11–0.7 V. Optimal charging conditions were established by cyclic voltammetry measurements and battery cycling tests.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 101, 1 July 2013, Pages 93–98
Journal: Electrochimica Acta - Volume 101, 1 July 2013, Pages 93–98
نویسندگان
Enrique Quiroga-González, Jürgen Carstensen, Helmut Föll,